NEUTRON NT · USER MANUAL

Neutron NT — user manual

From initial setup to weighing, piece counting, printing, saving records and configuring your scale.

1. Before you start

1.1 What is Neutron NT?

Neutron NT is a weighing terminal with a 7-inch touchscreen for displaying weight, piece counting, checkweighing, data capture and connecting a weighing station to other systems. The display and data fields can be adapted to your workflow. Available applications and accessories depend on the device configuration.

1.2 Display, housing and weighing channels

Manual table 1

Field / label	Meaning and use
Display	7-inch IPS TFT LCD, 1,024 × 600 pixels, touch operation.
Housing	AISI 304 stainless steel, IP67 protection.
Weighing channels	Up to 4 weighing-platform channels, each with its own settings. The ADC is multiplexed: conversion takes place for one channel at a time.
Connectivity	2.4 GHz Wi-Fi, Bluetooth BLE and optional Ethernet; UART, RS-232 and RS-485 serial interfaces.
Inputs and outputs	6 configurable optically isolated digital inputs and 6 PhotoMOS outputs for process integration.

Neutron NT: housing, display and dimensions in millimetres.

1.3 Positioning and safe use

Place the weighing platform on a stable surface, clear of surrounding objects. Avoid impacts, vibration and draughts that affect measurements. Do not exceed the scale's marked capacity. Cables must not pull on the platform or restrict its movement.

The terminal datasheet specifies a 220–240 V AC power supply, an operating temperature of −10 to +40 °C and relative humidity up to 85%, non-condensing. Use the connection specified for the supplied version. Do not open an energised housing; internal connections must be made by a qualified person.

1.4 Local operation and connected services

Basic weighing takes place on the terminal. Cloud transfer, synchronisation and online update checks require a suitable network connection. Cloud storage also depends on your Scale Monitor plan.

2. Initial connection and startup

2.1 Connecting and switching on

Inspect the terminal, weighing platform and cables before connecting them.
With the device switched off, connect the scale and the intended accessories. Internal load-cell and interface wiring must be carried out by a qualified person.
Connect the power supply for the supplied version and wait for the terminal to start and display the application.
If login is required, use the account assigned to you by your administrator.

2.2 Language, date and time

Open Menu → General → Language, select your language and press Save. Under General → Date & time, set the date and time or network synchronisation. The correct time provides a meaningful chronological record of weighings and events.

Language settings screen with active-language selection and Save button — Selecting the active language and saving your choice.

2.3 Checks before the first weighing

Check that the platform is empty and moves freely.
Check the weight display and unit. On a multichannel device, check which platform is selected.
Wait for a stable reading and zero the scale if necessary.
Place a known check load appropriate to the scale's range on the platform and check its response.
If no weight is displayed or the response is incorrect, see Troubleshooting.

Changing the language or connection does not require recalibration. Change scale settings only within your authorisation.

3. Display and controls

3.1 Weight and basic indicators

Manual table 2

Field / label	Meaning and use
Net	Weight of the contents after deducting tare.
Gross	Total weight of the contents and container.
Tare	Container weight or the value deducted. Net = gross − tare.
○ / stability	The circle to the left of the weight display indicates a stable weight.
No circle	If the circle is absent, the weight is unstable.
UL / Underload	Underload: the measurement is below the permitted range.
OL / Overload	Overload: the measurement exceeds the permitted range. Remove the excess load.
Channel	The selected measuring channel or platform.
Range	The scale's currently active measuring range.

3.2 Menus, returning and saving

Press Menu in the application toolbar to open the menu. Swipe left or right between pages. Tap an item to open its settings. Back returns one level; the home icon returns to the active application. Save changes on screens with a Save button before leaving.

Main menu, page 1: General, Applications, Weighings and Databases.

Main menu, page 2: Network & cloud, Calibration, Peripherals and User & groups.

3.3 Switching applications

You can quickly switch the active application directly from the main screen.

Example application icon beside the menu button.

The icon may vary with the current application.

Press the application icon beside Menu in the upper-left corner.
A popup opens with all applications available on the device.
Press the application you want. The device loads it and then displays it.

3.4 Quick menu

On any application screen, swipe down from the top edge. The quick menu opens with an overview of the device's main status information.

Neutron NT quick menu — Quick overview of connections, logged-in user and device.

Connections and user
Wi-Fi or Ethernet, cloud and Bluetooth connection status, and the currently logged-in user.

Printer
TCP printer connection status.

Device and notifications
Basic device information, IP address, uptime and new notifications.

Quick actions
Log out, restart and other shortcuts available on the device.

3.5 Fullscreen display

Tap the displayed weight to open the fullscreen view. Configure automatic opening after inactivity under Applications → selected application → Virtual indicator; see Customising the device.

Standard and zoom indicators for all applications can be freely edited in Scale Monitor. Customise the display →

4. Basic weighing — gross/net

4.1 Main application display

Basic weighing — gross/net (Weighing) is the primary application for everyday weighing. One screen shows net weight, gross weight and tare, and provides taring, clearing tare, zeroing and saving a weighing.

Basic weighing: 1 messages, 2 net weight, 3 stability, 4 scale, 5 gross weight, 6 tare, 7 tare command, 8 clear tare, 9 zero, 10 save.

Manual table 3

Label / field	Meaning and use
1 · Message area	The message area at the top of the screen displays device messages. The illustration shows No notifications…, meaning there are currently no notifications.
2 · Net — net weight	The large numeric value shows the weight of the contents after tare is deducted. Net = gross − tare. Tap the net-weight field to open the enlarged zoom display.
3 · ○ — stable weight	A small circle appears to the left of the weight reading, below Net and above the C1 scale label. A visible circle means the weight is stable. No circle means it is unstable. Its position is marked with number 3.
4 · C1–C4 or R — scale	C1, C2, C3 and C4 identify the scale or weighing channel being displayed. R identifies a reference scale connected via RS-232, RS-485 or TCP/IP. C1 is selected in the illustration.
5 · Gross — gross weight	Total weight of the container and contents on the scale. Gross = net + tare.
6 · Tare — tare weight	Container weight or the value deducted from gross weight. Tap the Tare field displaying the tare value to enter tare manually.
7 · T — tare	Place the empty container on the scale, wait for a stable reading and press T. The current weight becomes the tare, and the net display reads zero.
8 · C — clear tare	Press C to clear the active tare. When tare is 0, net and gross weights are equal.
9 · Z — zero	Press Z on an empty scale to zero it. This corrects the empty-scale offset within the permitted range.
10 · Disk icon — save	Press the disk icon to save the weighing and its associated data. Check the weight, stability and selected data before saving.

Data fields below the weight display include Product, Customer, Lot and Note. The fields shown depend on the weighing-station template.

4.2 Entering tare manually

If you already know the container weight, you can enter it directly without weighing the empty container.

Tap the Tare field displaying the tare value.
Enter the container weight in the correct unit and confirm.
Check the displayed tare and net weight. The entered tare is deducted from gross weight.
Press C when tare is no longer required.

Example: with a gross weight of 2.500 kg and a manually entered tare of 0.500 kg, the net contents weigh 2.000 kg. T uses the currently measured weight as tare; tapping Tare lets you enter a known value.

4.3 Zoom window — enlarged weight display

Tap the net-weight field to activate the zoom window. Net weight is enlarged, with the stability circle and scale label still visible. Gross weight and tare appear below, together with T for taring and the disk icon for saving.

Zoom window: 1 net weight, 2 stability, 3 scale, 4 tare command, 5 save, 6 gross weight, 7 tare.

Manual table 4

Label / field	Meaning and use
1 · Net	Enlarged net weight with unit.
2 · ○	The circle on the left of the zoom window indicates a stable weight; if absent, the weight is unstable.
3 · C1–C4 / R	Label identifying the displayed scale or reference scale.
4 · T	Tare the current weight.
5 · Disk icon	Save the weighing.
6 · Gross	Gross weight.
7 · Tare	Active tare.

4.4 Preparing the scale

Select Weighing. Check the selected platform, unit and empty weighing surface. Wait for the reading to settle.

4.5 Zeroing the scale

With the platform empty and unloaded, activate Z (Zero) in your display. After successful zeroing, check that the display reads zero. If the command fails, check stability and whether the offset is within the permitted zeroing range.

Zeroing corrects the empty-scale offset. Use taring to deduct container weight.

4.6 Weighing without a container

Place the load in the centre of the platform without impact.
Wait for a stable reading.
Read the weight and unit. Check that neither OL nor UL is displayed.
If you need a record, save the weighing in the application.

4.7 Weighing with a container: taring

Place the empty container on the unloaded scale.
Wait for stability and activate T (Tare).
Check that net weight reads zero and the container weight is included as tare.
Add the contents and read the stable net weight.
Save the weighing if your procedure requires a record.

Example: the container weighs 0.500 kg and the contents 2.000 kg. Gross weight is 2.500 kg, tare 0.500 kg and net weight 2.000 kg.

4.8 Saving a weighing

Before saving, select the product, customer and other fields required by your procedure. Save the weighing and check the resulting record. If a stable weight is required, the device will not save the record until that condition is met. See Saved weighings for settings.

4.9 The next weighing

Remove the load. If you change containers, clear or reset tare using C (Clear tare) and T (Tare). A negative net reading after removing a tared container may mean tare is still active. Check the empty scale before the next weighing.

4.10 Example: weighing contents in a container

The empty scale must be stable and read zero; press Z if necessary.
Place an empty container weighing 0.350 kg on the platform. Gross weight is 0.350 kg.
Press T. Tare becomes 0.350 kg and net weight 0.000 kg.
Add 1.250 kg of contents. Net weight is 1.250 kg, gross weight 1.600 kg and tare remains 0.350 kg.
Wait for the stability circle and press the disk icon to save.
Remove the container. If you are not using it again, press C to clear tare and check the empty scale.

If the container weight is already known, tap the Tare value and enter 0.350 kg manually instead of weighing the empty container.

5. Weighing with products and customers

Manage products, customers and other data under Databases.

Open Menu and select Databases.

Menu with the Databases option — Open Databases from the menu.

All databases installed on Neutron NT are displayed.
To add an entry, press the green + button beside the relevant database. Select Customer NT for a customer or Product NT for a product.
Enter the required data and save the new entry.

Customer NT and Product NT database list with add buttons — Installed databases; the + button starts adding a new item.

Viewing and editing existing entries

Press the row of the selected database to open its list of entries.
Press an entry to open its details and edit it.
Press the star to mark an item as a favourite. Press it again to remove the mark.

When editing an item, you can also configure which details are saved with a weighing and which are displayed when the item is selected in an application.

Tip: favourite products and customers are easier and quicker to find when using applications.

Selecting a product or customer in an application

In an application that supports product or customer selection, press Product or Customer. The relevant database list opens. Select an entry, edit an existing one using the pencil beside its row, or add one with +.

Example application with Product and Customer selection fields.

The pencil in the top row serves a different purpose from the pencil beside an item: it creates a temporary entry. Enter only a name, which is then used as the selected product or customer. Use + to add a permanent database entry.

Product list: top pencil for a temporary name, + for a new entry, and the pencil beside a row for editing an existing entry.

5.1 Example workflow

Press Product in the application and select a product.
Press Customer and select a customer.
Check the displayed data fields.
Prepare the container, tare it and weigh the contents.
Save the weighing and check that the record is linked to the selected data.

6. Piece counting

The Counting application calculates the number of pieces from net weight and average piece weight. Use it for stocktaking, preparing sets and packing screws, washers or other pieces of the same type.

6.1 APW — what does the scale use to count?

APW is average piece weight. The display uses APW — Average Piece Weight; the Slovenian abbreviation is PMK. It is calculated from the net weight of the reference sample and its actual piece count:

APW = net reference-sample weight ÷ number of reference pieces.
Calculated piece count = net weight of all pieces ÷ APW.

Example: 25 pieces weigh 25.050 g in total. APW is 25.050 ÷ 25 = 1.002 g/piece. If you then weigh 250.500 g of the same pieces, the calculation is 250.500 ÷ 1.002 = 250 pieces.

The scale does not identify individual pieces. It measures total weight and divides it by APW. Correct tare, a good sample and an appropriate APW therefore directly determine the result. A higher entered APW gives fewer calculated pieces at the same weight; a lower APW gives more.

6.2 How many pieces should a representative sample contain?

Use a sufficiently large, representative sample of the same product and batch. Take pieces from different parts of the stock to capture normal weight variation. Selecting only the lightest or heaviest pieces is not representative, even with a large sample.

A practical starting point is about 10% of the intended count, usually up to 100 reference pieces. Use at least 10 pieces for a typical initial reference. For quantities up to 1,000 pieces, increase the sample roughly in proportion to the quantity; for larger quantities, 100 pieces is a typical reference.

Manual table 5

Intended quantity	Typical reference sample	Procedure
100	10 pieces	Count 10 pieces and select 10.
250	25 pieces	Use 25 actual pieces for the final reference; use the additional piece-count selector.
500	50 pieces	Gradually increase the sample to 50 pieces and confirm it.
1000	100 pieces	Gradually increase the sample to 100 pieces and confirm it.
10000	Usually 100 pieces	Check that the batch sample is representative and verify the result using an independently known quantity.

10% and 100 pieces are practical starting points, not accuracy guarantees or device limits. A larger sample generally reduces the influence of an individual outlier. Wide weight variation, very light pieces or large target quantities may require more reference pieces or additional checks. A large sample does not remove a systematic difference between the sample and the rest of the batch.

6.3 Correct procedure: from an initial 10 to 50 or 100 pieces

Select Counting, check the unit and empty scale. If using a container, place it on the scale and press T.
Manually count 10 representative pieces, place them in the container and wait for a stable weight.
Press 10. The terminal calculates the initial APW from these ten pieces.
For a larger sample, add pieces until the display reads approximately 50 pieces. This uses the scale as a guide when preparing the larger sample, rather than counting all 50 manually at the outset.
Before confirming, ensure that the sample actually contains 50 pieces. Use an independent check, such as a known number of added pieces, counted groups or previously verified packaging. Then press 50 and observe the APW change.
If you need a 100-piece reference, add the remaining pieces, verify the actual count, wait for stability and press 100. For another quantity, such as 25, use the additional selector via the dice button.
Use the established APW to count an independently known check quantity. If the result differs, check tare, the sample and differences between batches.
Then add or remove pieces to reach the required quantity and save the stable result with the disk icon.

The 50 button tells the scale that 50 pieces are present; it does not verify that count. If the initial APW is wrong, a displayed 50 may actually be 49 or 51 pieces. Merely adding pieces until 50 is displayed and pressing 50 does not guarantee a better reference. The same applies when increasing to 100 pieces.

Why is reconfirmation alone insufficient? With an initial APW of 1.020 g/piece, adding 51.000 g produces a calculated 50 pieces. Reconfirming 50 calculates 51.000 ÷ 50 = 1.020 g/piece: the error remains. A larger sample helps when its entered count matches the actual quantity.

6.4 Why can a reference of 1 or 5 pieces cause a large error?

The following calculation assumes the actual average weight of the batch being counted is 1.000 g/piece, while one heavier piece weighs 1.020 g, or 2% more. For the test quantities shown, assume a total weight corresponding to an average of 1.000 g/piece. These examples isolate the effect of an incorrect APW; variation in the total quantity and measurement uncertainty are excluded.

Manual table 6

Reference sample	Calculated APW	Actual 100	Actual 500	Actual 1,000	Actual 10,000
1 piece: a heavier 1.020 g piece is selected	1.020 g	98 (−2)	490 (−10)	980 (−20)	9,804 (−196)
5 pieces: 4 × 1.000 g + 1 × 1.020 g	1.004 g	100 (+0)	498 (−2)	996 (−4)	9,960 (−40)
5 pieces: 3 × 1.000 g + 2 × 1.020 g	1.008 g	99 (−1)	496 (−4)	992 (−8)	9,921 (−79)
5 pieces: 3 × 1.000 g + 1 × 1.020 g + 1 × 0.980 g	1.000 g	100 (+0)	500 (+0)	1,000 (+0)	10,000 (+0)

The columns show the calculated count rounded to a whole piece, with the difference from the actual quantity in brackets. In the first example, 10,000 actual pieces are calculated as approximately 9,804: a difference of 196 pieces. With five reference pieces including one heavier piece, the same quantity is calculated as approximately 9,960: still a difference of 40 pieces.

Two outliers do not necessarily cancel out. If both are heavier, the error increases. In the last row, +0.020 g and −0.020 g cancel in this particular sample, but such a balance is not guaranteed in a small random sample.

6.5 How does a larger sample reduce the effect of one piece?

Assume the reference includes one 1.020 g piece and all others weigh 1.000 g. As normal pieces are added, the same 0.020 g excess is spread over more pieces:

Manual table 7

Actual pieces in sample	Net sample weight	Calculated APW	Deviation from 1.000 g/piece
1	1.020 g	1.020000 g/piece	+2 %
5	5.020 g	1.004000 g/piece	+0.4 %
10	10.020 g	1.002000 g/piece	+0.2 %
25	25.020 g	1.000800 g/piece	+0.08 %
50	50.020 g	1.000400 g/piece	+0.04 %
100	100.020 g	1.000200 g/piece	+0.02 %

With a correctly established sample of 10 → 50 → 100 pieces, APW in this example changes from 1.002000 to 1.000400 and then 1.000200 g/piece. A rounded screen display may hide small differences. This example demonstrates averaging one outlier; the actual batch may have a different distribution.

6.6 What does an APW error in the third decimal place mean?

The third decimal place in g/piece represents 0.001 g, or 1 mg per piece. This is an absolute difference; its relative effect depends on piece weight.

If the true APW is 1.000 g/piece but the value used is 1.001 g/piece, APW is 0.1% too high. At a net weight of 1,000 g, corresponding here to 1,000 actual pieces, the scale calculates 1,000 ÷ 1.001 = 999.001 pieces, or approximately 999 pieces. An error in the third decimal place therefore already causes a difference of about one piece in 1,000.

Manual table 8

Actual quantity at APW 1.000 g/piece	Calculation with APW 1.001 g/piece	Calculation with APW 0.999 g/piece
100	99.900 ≈ 100	100.100 ≈ 100
500	499.500 ≈ 500	500.501 ≈ 501
1000	999.001 ≈ 999	1001.001 ≈ 1001
10000	9990.010 ≈ 9990	10010.010 ≈ 10010

Manual table 9

True APW	APW used	Relative APW error	Calculation for 1,000 actual pieces
0.100 g	0.101 g	+1 %	100.000 ÷ 0.101 ≈ 990 pieces: approximately 10 too few
1.000 g	1.001 g	+0.1 %	1,000.000 ÷ 1.001 ≈ 999 pieces: approximately 1 too few
10.000 g	10.001 g	+0.01 %	10,000.000 ÷ 10.001 ≈ 999.900 pieces: a whole-piece display may still show 1,000

When filling to a target, the effect is reversed: with an excessive APW of 1.001 g/piece, the display reaches 1,000 pieces at approximately 1,001 g. If actual pieces average 1.000 g, you have prepared approximately 1,001 pieces. An incorrect APW thus undercounts a known quantity but may cause overfilling when adding pieces to a target display.

Approximately: relative count error ≈ −relative APW error. For an exact calculation, divide net weight by APW. The number of displayed APW decimals does not prove correctness; APW decimals changes the display and does not itself improve the sample.

6.7 Example: preparing a bag of 250 screws

Select the screw product and batch, place the empty bag or container on the scale and press T.
Use 10 actual representative screws for the initial reference and press 10.
For a final reference when counting 250 pieces, prepare 25 actual pieces. Add 15 verified pieces and use the dice button to enter a reference count of 25.
Wait for stability and check the new APW. In REL mode set Target = 250; if no deviation in the displayed count is allowed, set T− = 0 and T+ = 0.
Add screws until a stable count of 250 is displayed. Check the product, customer and batch, then save with the disk icon.
Re-establish APW when changing products or batches. For demanding applications, also verify results using an independently known quantity.

Zero tolerances require the calculated count to match the target. They do not eliminate APW error or themselves guarantee that the actual quantity has no deviation.

6.8 Application settings and fields

Manual table 10

Field	Meaning
Target	Target piece count.
T− / T+	Permitted deviation below or above the target.
ABS — Absolute	Directly specified lower and upper limits for an acceptable piece count.
REL — Relative	Target piece count and permitted deviations.
Counting decimals	Number of decimal places in the displayed piece count.
APW decimals	Number of decimal places in the APW display. This setting does not itself improve sampling.
APW / PMK	Average piece weight. Tap the field to change its value.
10 / 50 / 100	Confirm the actual number of reference pieces on the scale with the button. The device calculates APW from their weight.
Dice button	Additional reference-count selection or direct APW entry.

Open Applications → Counting → General, set the decimal places and ABS or REL mode, then press Save. For normal whole-piece counting, use a count display without decimal places. When entering APW manually, check the unit and sufficient decimal precision.

Counting, General tab: count and average-piece-weight decimals, and counting mode.

6.9 Default zoom indicator

The default Counting zoom indicator emphasises the piece count. Alongside the enlarged result, it shows weights, tare, target, tolerances and APW — average piece weight.

Default zoom indicator for piece counting — Piece counting: enlarged count, weight, tare, target, tolerances and average piece weight (APW).

In the example, the result is 110 pcs, Target is 110, Tol− and Tol+ are 0, and APW is 1.00043 g/piece. On the left are net weight 110.1 g, gross weight 130.0 g and tare 19.9 g. The selected product and customer appear below.

The circle indicates stable weight; if absent, weight is unstable. C1 identifies the displayed scale. T tares the scale; the disk icon saves the weighing.

The standard and zoom indicators can be freely edited in Scale Monitor. Edit indicators for all applications →

7. Checkweighing

The Checkweighing application quickly shows whether the measured weight is too low, acceptable or too high for the configured limits.

Checkweighing main screen in Relative mode with a 100 g target — Checkweighing in Relative mode: target 100 g, lower deviation 8 g, upper deviation 7 g and current net weight 100.1 g.

The upper card shows net weight, gross weight, tare and a graphical deviation indicator.
Press Low, Target or High to enter the corresponding value where the selected mode permits it.
In Absolute mode, Target is greyed out or disabled; the lower and upper limits are used.

Change the operating mode under Settings → Applications → Checkweighing. In Relative mode, set Target and tolerances T− and T+; in Absolute mode, set Low and High.

7.1 Modes and parameters

Manual table 11

Field / label	Meaning and use
Low / lower limit	Lowest permitted weight in ABS mode.
High / upper limit	Highest permitted weight in ABS mode.
Target	Target net weight in REL and PER modes.
T− / T+	Permitted deviation below or above the target.
ABS — Absolute	Enter the lower and upper limits in weight units.
REL — Relative	Enter the target weight and deviations in weight units.
PER — Percent	Enter the target weight and deviations as percentages of the target.

7.2 Checkweighing procedure

Select Checkweighing.
Select ABS, REL or PER in the application settings and save the change.
Set the limits or target and deviations in the application.
Tare the container if one is used.
Place the product on the scale and wait for a stable reading.
Read the weight and graphical deviation indicator, then save the weighing if required.

7.3 Checkweighing-specific settings

Under General, select the checkweighing mode: ABS uses lower and upper limits, REL a target weight and lower and upper deviations, and PER a target weight and percentage deviations. See chapter 7 for application details.

7.4 Example: filling to 1 kg

For an acceptable weight of 0.990 to 1.010 kg, use ABS: Low = 0.990 kg, High = 1.010 kg; or REL: Target = 1.000 kg, T− = 0.010 kg, T+ = 0.010 kg; or PER: Target = 1.000 kg, T− = 1%, T+ = 1%. Always check net weight after taring the container.

For each container: tare the empty container first, set the target to 1.000 kg and permitted deviations to 0.010 kg, fill the container and wait for a stable weight. Example decisions:

Manual table 12

Stable net weight	Result for the 0.990–1.010 kg range	What to do
0.985 kg	Underweight	Add contents and recheck the stable result.
1.004 kg	Acceptable weight	Save the weighing and prepare the next container.
1.018 kg	Overweight	Remove contents and recheck the stable result.

Check tare before the next container. If empty-container weights vary, tare each appropriate empty container again; incorrect tare directly changes the net-weight check result.

This chapter describes the static Checkweighing application. The automatic Checkweigher application for conveyor weighing has separate procedures and parameters.

7.5 Default zoom indicator

The default Checkweighing zoom indicator shows an enlarged net weight and a graphical indication relative to the target and permitted deviations.

Default zoom indicator for checkweighing — Checkweighing: enlarged net weight, gross weight, tare, target and permitted deviations.

In the example, net weight is 100.0 g, gross weight 119.9 g and tare 19.9 g. Target is 100 g, Tolerance − is 8 g and Tolerance + is 7 g. The acceptable range is therefore 92 to 107 g; the current weight is shown in green.

The circle indicates stable weight; if absent, weight is unstable. C1 identifies the displayed scale. T tares the scale; the disk icon saves the weighing.

The standard and zoom indicators can be freely edited in Scale Monitor. Edit indicators for all applications →

8. Saved weighings and automatic saving

8.1 Viewing a record

After saving, check the weighing record, measured data and associated product or customer. A cloud icon beside the record indicates successful cloud transfer; the associated Record ID identifies the cloud record.

Weighing details: cloud icon beside the title and Record ID 1513 — A cloud icon beside a weighing means the record was successfully sent to the cloud; its Record ID is shown below.

Weight saving: Save to cloud and Sync with cloud options, and Save button.

8.2 Saving settings for each application

Under Manual saving, specify whether the weight must be stable before a weighing can be saved manually. The other options control automatic saving.

Under Automatic saving – Condition, choose whether automatic saving is disabled, occurs at time intervals or saves each weighing. For intervals, also set Time interval in seconds. If needed, require a weight change and enter the minimum change.

Weighings: stability for manual saving, automatic-saving mode and time interval.

Weighings: weight-change threshold and return-to-zero options.

Require return to zero requires the scale to return to zero before the next automatic save. The separate Save weighing in zero range option determines whether a weighing can also be saved within the zero range; set its width in Zero range. You can also require a stable weight for automatic saving.

Deleting data: Delete all weighings deletes all stored weighings. Use it only when those records are no longer needed.

Weighings: zero range, stability and the button for deleting saved weighings.

8.3 Meaning of saving conditions

Manual table 13

Field / label	Meaning and use
Manual saving	Conditions for manual saving, especially the stability requirement.
Automatic saving – Condition	Mode selection: disabled, time intervals or individual weighings.
Time interval	Time between records in seconds for interval saving.
Require weight change	The weight must change by the configured threshold before a new record is saved.
Require return to zero	The scale must return to the zero range before the next automatic record.
Save weighing in zero range	Also permit saving within the configured zero range.
Zero range	Width of the range that the saving function treats as zero.
Stability	If enabled, saving is permitted only when the weight is stable.

8.4 Example: one record for each loaded container

Select individual-weighing saving and require stability and return to zero. Place a loaded container on the scale, wait for the record and remove it. Before the next container, wait until the return-to-zero condition is met. Test these settings with your taring procedure.

The saving zero range and the range permitting a zeroing command serve different purposes. The first controls record triggering; the second is a scale setting under Calibration.

9. Network connection and Scale Monitor

9.1 Wi-Fi

On the main screen, open Menu using the upper-left button.
Swipe through the menu pages to Network & cloud and open it.

Menu with the Network and cloud option — Select Network & cloud from the menu.

Under Internet interface, select the connection type. Wi-Fi is selected by default; Ethernet or LTE can also be selected if the appropriate module is installed.
Open the Wi-Fi card.

Network and Cloud screen with internet-interface selection — Selecting the internet interface and opening Wi-Fi settings.

Press Scan networks to search automatically, then select your network. You can also enter its details manually.
Enter the network name (SSID) and password.
For IP settings, leaving DHCP enabled is usually simplest.
Press Save and wait for the device to connect.

Screen for entering the Wi-Fi network name and password — Search for a network or enter its details manually.

Tip: set a static IP address only if your network requires it. Otherwise, leave DHCP enabled.

Neutron NT uses the 2.4 GHz Wi-Fi band. SSID is the network name; DHCP automatically assigns network settings. For WPA2/WPA3-Enterprise networks, obtain authentication details from your network administrator.

9.2 Ethernet

If an Ethernet module is installed, select it as the internet interface and connect the device with a network cable. Configure the connection type and network details for your network, then save the changes.

9.3 Network fields explained

Manual table 14

Field / label	Meaning and use
SSID	Wireless network name.
DHCP	Automatic assignment of an IP address and other network settings.
IP address	Device address on the network. For a static address, use the details supplied by your administrator.
Gateway	Network gateway to other networks or the internet.
DNS	Service that resolves server names to IP addresses.
NTP	Network synchronisation of date and time.
MID	Module ID: unique module identifier.
PIN	Module access credential. Keep it confidential.

9.4 Cloud connection

Scale Monitor™ cloud connection settings are prepared for normal use. They usually do not need changing. Adjust them only for special requirements or a custom connection configuration. To send saved weighings to the cloud, see Weighings → Weight saving.

9.5 Sending and synchronising weighings

If your Scale Monitor™ plan supports cloud storage of weighings, enable Save to cloud and press Save. For each newly saved weighing, the device also attempts to send the record to the cloud. A cloud icon appears beside that weighing once transfer succeeds.

For weighings already stored on the device but not yet sent to the cloud, select Sync with cloud and press Save. This starts sending pending records to Scale Monitor.

9.6 Checking operation

In the quick menu, check the Wi-Fi or Ethernet connection and cloud status.
Save a test weighing.
Check for the cloud icon beside the record.
If older records are still unsent, use Weighings → Weight saving → Sync with cloud → Save.

10. Printing and accessories

10.1 Connecting a printer

Under Printer, select POS or Label. Connection settings are similar. Selecting RS-232 and pressing Save sets RS-232 communication for that printer. Saving on the TCP/IP tab sets network communication; enter the printer's IP address and port there. Always press Save after changing the connection.

Printer menu with POS or Label selection.

Manual table 15

Field / label	Meaning and use
RS-232	Serial connection. Baud rate, data bits and parity must match the printer.
TCP/IP	Network connection. Enter the printer's IP address and port.
Baud rate / bps	Serial transmission speed in bits per second.
Parity	Transmission checking: none, even or odd parity.
Port	Printer network-service port number.

10.2 Printing a weighing slip — thermal printer (POS)

The RS-232 tab provides serial-connection settings; TCP/IP provides the printer's IP address and port. View POS labels displays printing templates transferred from Scale Monitor™, and Test print tests printing. Select each application's default template under Applications → General.

POS printer: RS-232 tab and template-viewing button.

POS printer: TCP/IP tab with IP address and port.

POS identifies the print-output type and printer settings. Use View POS labels to view templates and Test print to test printing. In the selected application's settings, choose a template and, if required, enable printing when a weighing is saved.

10.3 Label printing and templates

Selecting the RS-232 or TCP/IP tab determines the communication mode once saved. For TCP/IP, set Local alert server port as well as the printer address and port. View labels displays label templates transferred from Scale Monitor™. You can also edit the ZPL template manually if necessary; Test print tests printing.

Label printer: TCP/IP settings, alert port, View labels and Test print buttons.

Installed label templates with size and resolution information.

Manual table 16

Field / label	Meaning and use
ZPL — Zebra Programming Language	Template language defining label content and layout. The printer must support the language used.
View labels	View label templates transferred to the device.
Test print	Test output using the configured printer.
Local alert server port	Local network port for printer alerts; connection settings must match the equipment used.

10.4 Automatic printing and photography when saving

For printing, select the default POS label from templates transferred to the device and the default label-printer template. The label printer prints the selected ZPL template. You can independently enable automatic POS-slip and label printing for each saved weighing.

You can also enable photography when saving. The camera must first be configured under Peripherals → Camera.

Weighing, General tab: print templates and automatic actions when saving.

10.5 Camera

Connect the camera via TCP/IP. Enter its IP address, username and password, then press Save. Once configured, enable taking a photo when a weighing is saved for each application as required.

Camera settings: IP address, username and password.

10.6 Communication interfaces and digital I/O

Serial and network interfaces connect the terminal to other equipment. The datasheet lists Modbus RTU, Modbus TCP, TCP/IP, REST, MQTT/MQTTS and WebSocket/WSS. Modbus connects to PLCs or supervisory systems; REST exchanges data over HTTP/HTTPS. MQTTS and WSS use TLS-protected transport.

Digital inputs can trigger zeroing, taring or other configured functions. Outputs can indicate tolerance status or control suitable process functions. An integrator should configure connection assignments and functions.

Manual table 17

Field / label	Meaning and use
I/O — Input/Output	Digital inputs and outputs.
Digital inputs	6 optically isolated inputs; 10–24 V DC ±5 %, current 4–35 mA according to the datasheet.
Digital outputs	6 PhotoMOS outputs; 5–24 V DC, maximum 150 mA.
PLC	Programmable logic controller for automation.
TLS	Protection of data in transit over a network.
UART / RS-232 / RS-485	Different electrical interfaces for serial communication; connection requires appropriate signal levels and wiring.

Examples of UART, RS-232 and RS-485 serial connections.

The Vdc+ supply terminal in the illustrated low-voltage diagram is not the terminal's mains connection. Never connect 230 V mains to communication or I/O terminals.

11. Customising the device and applications

11.1 Language

Under Language, select one of the languages installed on the device. Confirm with Save.

11.2 Date and time

Configure automatic network time synchronisation and the NTP server, check the current date and time, and choose a 12- or 24-hour display. Sync now triggers immediate synchronisation. If automatic synchronisation is not used, set the time manually. Confirm changed settings with Save.

Date and time: synchronisation, NTP server and current time.

Date and time: display mode and manual synchronisation.

11.3 Display

Set screen brightness and touch sensitivity. Configure inactivity time before the screensaver starts and the additional delay before the backlight turns off. Also set a desired minimum weight and the colour used to highlight readings below it. A minimum weight of 0 disables this warning. Save changes with Save.

Caution: setting brightness to 0 makes the screen completely black. Reduce brightness gradually.

Display: brightness, touch sensitivity and screensaver delay.

Display: backlight-off delay, minimum weight and colour indication.

11.4 Device name

In Device name, set the name under which the device is visible on the network. Confirm the new name with Save.

11.5 Selecting a display and fullscreen mode

Applies to all applications: both standard and zoom indicators can be freely edited in Scale Monitor. Adapt their appearance, layout and displayed data to your weighing process. Standard and zoom indicators are separate display templates; after transferring them to the device, select them under Virtual indicator in the relevant application's settings.

Choose this application's weighing-display appearance. A ready-made template is available by default; create a custom display in Scale Monitor™, transfer it to the device and select it here. A fullscreen display can be selected separately.

Under Application fullscreen, set the inactivity time in seconds before fullscreen mode opens automatically. At 0, it does not open automatically; tap the displayed weight to open it.

Weighing, Virtual indicator tab: standard and fullscreen displays and automatic-opening delay.

Manual table 18

Field / label	Meaning and use
Virtual indicator	Weighing-display template for each application.
Application fullscreen	Inactivity time in seconds before automatic fullscreen display.
Application fullscreen = 0	Automatic switching is disabled. Tap the weight to open fullscreen mode.

12. Users, permissions and traceability

12.1 Users

Users opens the list of users stored on the device. Create a user with Add user; tap a user to open and edit details such as name, username, group or role, and status. Confirm changes with Save.

User list with Add user and access to individual entries.

Editing group and status, and opening additional user permissions.

12.2 Groups

Groups lists all device groups. Use Add group to create a group, name it and set its users' permissions. Tap an existing group to open its settings, change permissions or delete it. Confirm permission changes with Save.

Editing a group with Group permissions and Delete group options.

Group-permissions table; ticks indicate assigned permissions.

12.3 Additional permissions

A user receives the permissions assigned to their group. Open Additional permissions at the bottom of the user's form to add permissions the group does not have. A tick in the group column indicates an existing group permission; select an empty user-column field to grant that permission specifically to the user. Save with Save.

Additional-permissions table: group and selected-user columns.

12.4 Login and session duration

Set session duration in minutes under Session expiry; 0 means no automatic expiry. Auto login logs the user in automatically at device startup. Only one user can have automatic login enabled at a time: enabling it for another user disables it for the previous user. Confirm with Save.

User session-expiry and automatic-login settings.

12.5 Audit log

Event logging is disabled by default. Enable Enable audit log and press Save to record most user actions in internal storage. Open saved logs later to review individual events.

Enabling logging and viewing saved log files.

Example event view in a selected log file.

Manual table 19

Field / label	Meaning and use
Audit log	Log of recorded user actions.
Session expiry	Session duration in minutes; 0 means no automatic expiry.
Auto login	Automatic login of the selected user at startup.
Group permissions	Permissions inherited by group members.
Additional permissions	Additional permissions assigned to an individual user.

13. Maintenance, backups and updates

13.1 Cleaning and regular inspection

Disconnect power before cleaning. Use a soft cloth and a cleaner suitable for stainless steel, the display and seals. Avoid mechanical damage to the screen, cable glands and cables. Before reuse, check connections for damage and tightness. IP67 alone does not establish resistance to cleaning chemicals or high-pressure washing.

13.2 Storage and settings backup

View internal-storage and SD-card usage. Buttons are available to back up settings and restore them from a previously created backup.

Storage: available space and settings backup and restore buttons.

Back up settings before major changes. Restore only to an appropriate device and configuration. A settings backup is not an archive of all weighings and logs.

13.3 Software updates

The device can check whether a newer software or firmware version is available.

Open Menu → General.
Swipe to the second page and open Update.

Second General settings page with the Update option — Select Update on the second General page.

On the Update screen, press Check for updates.
If a new version is available, an Update to version … button appears. Press it to start the update.
If no update is available, the device reports that the latest version is already installed.

Update screen with Check for updates button — Select Check for updates first.

Update screen when a new version is available — When an update is available, select Update to version …

Important: do not switch off the device or interrupt its network connection during an update.

13.4 Restarting

Select Reboot to restart the device.

14. Troubleshooting and support

Manual table 20

Problem / indication	What to do
No weight displayed	Check power, the scale connection, selected channel and measuring-signal status. Contact support if the problem persists.
Unstable weight	Check for vibration, draughts, platform contact and cable tension. An authorised person should adjust filtering and stability settings.
Zeroing fails	Empty the platform, wait for stability and check active tare. The command may be limited by the zeroing range or timeout.
Negative weight after removing the container	Check active tare. Use Clear tare if the container is no longer in use.
OL / UL	Check loading and correct positioning. For OL, remove the excess load. If the indication remains on an empty platform, contact service.
Cannot save a weighing	Check user permissions, required data fields, stability and available storage.
Automatic records repeat or are missing	Check the time interval, required weight change, return to zero and permission to save in the zero range.
Wi-Fi does not work	Check the 2.4 GHz network, SSID, password, signal and DHCP. For an Enterprise network, verify credentials with your administrator.
No cloud connection	Check the local network, internet access and cloud connection separately in the quick menu.
Weighings are not in the cloud	Check the Scale Monitor plan, Save to cloud and the cloud icon. For pending records, use Sync with cloud and Save.
Printer does not print	Check power, paper or labels, the RS-232 or TCP/IP connection, communication settings and template. Run Test print.
Camera does not capture an image	Check the camera's IP address, username and password, and that photography is enabled in the application settings.
Function unavailable	Check user permissions and the available application configuration.
Calibration ends with CE	Remove vibration, check that loads increase between points and repeat the point with a stable signal.

14.1 Information for support

Prepare the device model and identification, software version, connected-platform description, selected application, exact error message and the steps that trigger the problem. Include a screen photograph if needed. Share PINs and passwords only through an agreed secure channel.

PRECIZ support: info@preciz.si · +386 2 320 33 46.

15. Scale settings and calibration

This chapter is for personnel authorised to configure the scale. Changes to measuring ranges, scale intervals and calibration points affect weighing results. Save settings and prepare suitable reference loads before making changes.

15.1 Opening calibration and checking the signal

Open Calibration from the main menu. Tap tab names to switch between them. Current scale data appears at the top: channel, stability indication and active range on the left; weight, current ADC value, minimum and maximum detected ADC values, and the signal in millivolts (mV) on the right.

Saving: after changing settings or calibration points, press Save to send the data to the scale.

Manual table 21

Field / label	Meaning and use
ADC — Analog-to-Digital Converter	Analog-to-digital converter. ADC value is the raw numeric load-cell signal.
mV — millivolt	Unit of electrical voltage. The displayed value is the load-cell signal.
Channel	Measuring channel. Changing the channel loads its settings.
Range	Active measuring range.
ADC min / max	Minimum and maximum detected ADC values, useful for assessing signal fluctuation.
= / ~ / UL / OL	Stable weight / unstable weight / underload / overload.

15.2 Metrological settings

In this tab, select the unit, range type and number of measuring ranges, and the interval d1 and upper limit max1. Increasing the number of ranges displays additional fields such as d2 and max2 for the next range.

Metrological settings tab: channel, measurement status, weight, ADC values, mV signal and range settings.

Manual table 22

Field / label	Meaning and use
Unit	Display unit, such as kg, g or t. Enter load values in the appropriate unit.
Number of ranges	Number of measuring ranges: 1 to 3.
Range type	Operating mode of the scale intervals or measuring ranges.
d1, d2, d3	Display interval for each range: the smallest displayed weight increment.
Max1, Max2, Max3	Maximum weight of each measuring range.
Example: Max1 = 60 kg, d1 = 0.01 kg	The display changes in 10 g increments. Entering a smaller increment does not itself improve the measuring capability of the load cells and platform.

15.3 Scale parameters

Under Scale parameters, configure other scale parameters, including interfaces, zero tracking, zero range, filtering, stability settings and command timeout. Confirm changed values with Save.

Scale parameters tab with zero, filter, stability and communication settings.

Manual table 23

Field / label	Meaning and use
Scale interface	Communication interface for connecting the scale.
Zero tracking	Automatic tracking of small zero offsets. The range is expressed in scale intervals; options are Disabled, 1/4, 1/2, 1, 2, 4, 8 or 10 intervals.
Boot on zero	Proportion of maximum capacity within which automatic startup zeroing is permitted.
Zero range	Permitted range for the zeroing command, expressed as a percentage of maximum capacity.
Filter	Digital signal filtering. Higher values steady the display and slow the response. A value of 0 disables this filter.
HR filter – High Resolution	Additional high-resolution filtering; reduces noise and increases settling time.
Number of divisions for stability	Permitted fluctuation in scale intervals for stability detection. At 0, weight is always treated as stable.
Command timeout	Maximum wait for command execution. If the weight does not settle in time for taring, the command is cancelled.

15.4 Preparing to capture calibration points

Check mechanical positioning, correct load-cell connections and the selected channel.
Check the unit, capacity and scale interval, and prepare reference loads of known weight.
Remove all loads from the platform and prevent vibration.
Open the Calibration tab.

15.5 Zero point and loaded points

Empty the scale and press Calibrate at point 0. After a few seconds, the measured value appears in the ADC column.
Place a known load on the scale. At point 1, enter its weight in Mass and press Calibrate. An ADC value is recorded for this point too.
If additional calibration points are needed, repeat using suitable known loads. Finally, press Save to send the data to the scale.

The same tab provides options to delete an individual calibration point or all points. Check carefully which points you are removing.

Calibration tab: points 0, 1 and subsequent points, with Mass and ADC columns and Calibrate buttons.

Use a greater weight for each successive point. The value in Mass must match the actual reference load. Wait for successful completion after capture. Additional points allow linearisation: adjusting signal-to-weight conversion at several positions across the measuring range.

Capturing calibration points: reference weight, ADC value and Calibrate command.

15.6 Calibration messages

Manual table 24

Field / label	Meaning and use
CS	Calibration starts.
C1–C10	Sequence of attempts while waiting for a stable signal.
CF	Calibration point captured successfully.
CE	Calibration error. Check stability, the load and point sequence.
Point / Mass / Factor	Calibration-point number / reference weight / calibration factor converting signal to weight.
Do not check stability	Disables stability checking when capturing a point. An unstable signal may cause an unreliable adjustment, so this is not a normal way to resolve an error.

If the signal is still unstable after ten attempts, calibration ends with CE. Improve the conditions first and repeat the point. Manual entry of ADC values and calibration factors is intended for expert adjustment.

15.7 Advanced settings and stability window

The last tab contains additional settings, including Stability window and Weight ADC. Press Save after changes.

Advanced settings tab with Stability window and Weight ADC.

Manual table 25

Field / label	Meaning and use
Stability window	Additional time for which the measurement must remain stable before the device confirms stability.
Quick	0.25 s; if the weight changes during this time, stability is not confirmed.
Medium	0.5 s; the default selection in the Neutron family manual.
Slow	1 s; longer stability verification.
Wait ADC / Weight ADC	Manufacturer's advanced parameter. Leave it disabled during normal operation.

For high resolution, the manual recommends Medium or Slow. Quick is suitable for standard resolution up to 10,000 intervals in a stable environment.

Advanced settings: stability-window selection and Wait ADC parameter.

15.8 Saving and checking the result

Press Save to send settings to the scale.
Remove the load and check the zero reading.
Check readings using several known loads within the operating range.
Repeat loading and unloading to check repeatability.
Before returning to operation, also check taring, saving and process limits if used.

16. Quick reference: menus and terms

Manual table 26

Menu	What you configure
General	Language, date and time, display, storage, update, name and restart.
Applications	Individual application, display and automatic-action settings.
Weighings → Weight saving	Sending and synchronising weighings to the cloud.
Databases	Databases for products, customers and other installed collections.
Network & cloud	Network interface and cloud connection.
Calibration	Measuring channel, measuring ranges, parameters and calibration points.
Peripherals	Printers, camera and other connected equipment.
User & groups	Users, groups, permissions, log and session.
Debug	Diagnostics for service and integration.

16.1 Abbreviations

Manual table 27

Field / label	Meaning and use
APW / PMK	Average Piece Weight: reference-sample weight divided by its actual number of pieces. The Slovenian abbreviation is PMK.
ABS / REL / PER	Absolute limits / relative deviations / percentage deviations.
ADC / mV	Raw converter value / electrical signal in millivolts.
POS / ZPL	Thermal-printer output settings / label-printer template language.
DHCP / DNS / NTP	Automatic network configuration / name resolution / time synchronisation.
MID / PIN	Module identifier / module access credential.
BLE	Bluetooth Low Energy, a wireless communication interface.
ERP / MES / WMS	Enterprise resource planning / manufacturing execution system / warehouse management system.

16.2 Related documentation

Neutron NT datasheet (EN) · Neutron family manual (EN) · Automatic Checkweigher manual (SL).

Frequently asked questions

How do I zero the scale?

Empty the platform, wait for stability and activate Zero. Use Tare for container weight.

What is APW?

APW is the average weight of one piece. Counting uses it to convert net weight into a piece count.

What does the cloud icon beside a weighing mean?

The record was successfully sent to the cloud. For pending records, use Sync with cloud under Weighings → Weight saving.

How do I enable printing when saving?

Configure the printer first and run Test print. Then select a template under General in the chosen application and enable automatic printing.

What does calibration error CE mean?

Calibration failed. Check stability, the appropriate load and an increasing sequence of points, then repeat the capture.

Can several users have automatic login enabled?

Automatic login can be enabled for only one user at a time. Enabling it for another user disables it for the previous user.