Ranger 2150 User manual

2150
DIGITAL
INDICATOR
(Baggage Weigher)
Reference
Manual
For use with Software
Versions 1.1 & above
2150-600 Rev 1.1

RANGER - 2150 Digital Indicator Reference Manual Rev 1.1
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TABLE OF CONTENTS
1. INTRODUCTION ............................................................................................................................ 5
1.1. 2150 Weight Indicator Illustration ........................................................................................ 5
1.2. The Manuals ........................................................................................................................ 6
1.3. Document Conventions ....................................................................................................... 6
2. SPECIFICATIONS.......................................................................................................................... 7
3. INSTALLATION.............................................................................................................................. 8
3.1. Introduction .......................................................................................................................... 8
3.2. Panel Mounting .................................................................................................................... 8
3.3. DC Power Supply.................................................................................................................8
3.4. Load Cell Signals and Scale Build....................................................................................... 8
3.5. Connecting Shields..............................................................................................................9
3.5.1. Cable Shield Connection and Earthing ................................................................ 9
3.6. Unused Pins......................................................................................................................... 9
3.7. Load Cell Connection ........................................................................................................ 10
3.7.1. 6-Wire Connection ............................................................................................. 10
3.7.2. 4-Wire Connection ............................................................................................. 11
3.8. Auxiliary Connection .......................................................................................................... 12
3.8.1. Inputs.................................................................................................................. 13
3.8.2. Outputs............................................................................................................... 13
3.8.3. Manual Override of Outputs ............................................................................... 13
3.9. Hardware Options.............................................................................................................. 14
3.9.1. 0080 (RS-232 / RS-422 / RS-485 Converter) .................................................... 14
3.9.2. 0082 (Port Splitter) ............................................................................................. 14
3.9.3. 0083 (Port Splitter) ............................................................................................. 14
3.9.4. 0110 (12 VDC Power Supply) ............................................................................ 14
3.9.5. 0223 (Serial Communications Cable) ................................................................ 14
3.9.6. 0227 (Relay Output Module) .............................................................................. 14
3.9.7. 0329 (Stainless Steel Rear Housing, Gasket and Desk/Wall Bracket).............. 14
3.9.8. 0330 (110/240 VAC Power Supply) ................................................................... 15
3.9.9. 0331 (12-24VDC Power Supply)........................................................................ 15
3.9.10. 0333 (Desk/Wall Bracket) .................................................................................. 15
3.9.11. 0348 (Panel Gasket) .......................................................................................... 15
4. APPLICATION CONFIGURATION ISSUES................................................................................ 16
4.1. General Setup Information................................................................................................. 16
4.2. Basic Weighing Terminology ............................................................................................. 16
4.3. Filtering Techniques .......................................................................................................... 17
4.3.1. FIR (Finite Impulse Response) Filter and Reading Rate ................................... 17
4.3.2. Digital Averaging ................................................................................................ 17
4.4. Trade vs Industrial Mode ................................................................................................... 18
4.5. Setup Counter.................................................................................................................... 18
4.6. Passcodes ......................................................................................................................... 18
4.7. Data Entry .......................................................................................................................... 19
4.7.1. Numeric Entry..................................................................................................... 19
4.7.2. Selections and Options ...................................................................................... 19
5. BASIC OPERATION .................................................................................................................... 20
5.1. User Interface Display and Controls.................................................................................. 20
5.1.1. Front Panel: Visual Display ................................................................................ 20
5.2. Primary Function Keys....................................................................................................... 21
5.2.1. Using the Primary Key Functions....................................................................... 22
5.2.2. Stability Considerations...................................................................................... 22
5.2.3. ZERO Key .......................................................................................................... 22
5.2.4. ADD Key............................................................................................................. 22
5.2.5. TOTALS Key ...................................................................................................... 23
5.2.6. CANCEL Key...................................................................................................... 23
5.2.7. FINISH Key ........................................................................................................ 23
5.2.8. TEST Key ........................................................................................................... 23

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6. SETUP .......................................................................................................................................... 24
6.1. Accessing Digital Setup ..................................................................................................... 24
6.2. Exiting Digital Setup...........................................................................................................24
6.3. 2150 Setup Display............................................................................................................ 25
6.4. Setup: Groups and Items ................................................................................................... 25
6.4.1. GRP (Groups) .................................................................................................... 25
6.4.2. ITM (Items) ......................................................................................................... 25
6.4.3. Using the Editing Key Functions ........................................................................ 26
6.5. BUILD (Scale Build)........................................................................................................... 26
6.5.1. DP (Decimal Point Position) ⊗........................................................................... 26
6.5.2. CAP (Maximum Capacity) ⊗.............................................................................. 26
6.5.3. RES (Count-by Resolution) ⊗............................................................................ 26
6.5.4. UNITS (Weighed Units) ⊗.................................................................................. 27
6.5.5. HI.RES (High Resolution x10 mode) ⊗.............................................................. 27
6.6. OPTION (Scale Options) ................................................................................................... 27
6.6.1. USE (Scale Use) ⊗............................................................................................ 27
6.6.2. FILTER (Reading Average)................................................................................ 27
6.6.3. MOTION (Motion Detection) ⊗........................................................................... 27
6.6.4. AUTO.Z (Auto-Zero on Startup) ......................................................................... 28
6.6.5. Z.TRAC (Zero Tracking Sensitivity) ⊗................................................................ 28
6.6.6. Z.RANGE (Allowable Zero Operating Range) ⊗................................................ 28
6.6.7. Z.BAND (Zero Dead Band) ⊗............................................................................ 28
6.6.8. AUTO.T (Auto Tare) ........................................................................................... 28
6.6.9. I.LOCK (Gross Weight Change)........................................................................ 28
6.6.10. MIN.BAG (Minimum Allowable Bag Weight)...................................................... 28
6.7. CAL (Scale Calibration) ..................................................................................................... 29
6.7.1. ZERO (Zero Calibration) ⊗................................................................................ 29
6.7.2. SPAN (Span Calibration) ⊗................................................................................ 29
6.7.3. ED.LIN (Edit Linearisation Points) ⊗.................................................................. 29
6.7.4. CLR.LIN (Clear Linearisation Points) ⊗............................................................. 29
6.7.5. FAC.CAL (Restore Default Factory Calibration) ⊗............................................ 29
6.8. SPEC (Special Settings Menu).......................................................................................... 29
6.8.1. FULL.PC (Security Passcode for Digital Setup) ................................................ 29
6.8.2. KEY.LOC (Front Panel Key Locking) ⊗............................................................. 30
6.8.3. KEY.FN (Key Functions) .................................................................................... 30
6.8.4. B.LIGHT (Backlight Operation) .......................................................................... 30
6.8.5. BRIGHT (Backlight Brightness).......................................................................... 30
6.8.6. AUX.DSP (Auxiliary Display Setting) ................................................................. 30
6.8.7. TOT.DSP (Display Total and Number of Bags) ................................................. 30
6.9. SERIAL (Serial Communications Options) ........................................................................ 31
6.9.1. TYPE (Serial Output Type) ................................................................................ 31
6.9.2. ADDR (Serial Address) ...................................................................................... 31
6.9.3. PRN.ID (Printer Identification)............................................................................ 31
6.9.4. PRN.TYP (Printer Type)..................................................................................... 31
6.9.5. PRN.COL (Printer Columns) .............................................................................. 31
6.9.6. PRN.HDR (Printer Header Format).................................................................... 31
6.9.7. PRN.FTR (Printer Footer Format)...................................................................... 31
6.9.8. BAUD (Serial Baud Rate)................................................................................... 32
6.9.9. BITS (Serial Format Options)............................................................................. 32
6.10. SET.PTS (Setpoint Settings) ............................................................................................. 32
6.10.1. OPTN A, OPTN B, OPTN C (Setpoint Options)................................................. 32
6.10.2. TARG A, TARG B, TARG C (Targets for each of the three setpoints) .............. 33
6.10.3. HYS (Hysteresis)................................................................................................ 33
6.11. CLOCK (Clock Settings) .................................................................................................... 33
6.11.1. FMT (Date Format)............................................................................................. 33
6.11.2. TIME (Set Time) ................................................................................................. 33
6.11.3. DATE (Set Date) ................................................................................................ 33
6.11.4. QA.OPT (QA Option Setting) ⊗......................................................................... 33

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6.11.5. QA.DATE (QA Date) ⊗....................................................................................... 33
6.12. TEST (Special Test Functions).......................................................................................... 34
6.12.1. SCALE (Scale Base Test Display) ..................................................................... 34
6.12.2. FRC.OUT (Force Outputs) ................................................................................. 34
6.12.3. TST.INP (Test Inputs) ........................................................................................ 34
6.13. FACTRY (Factory Adjustment Menu) ................................................................................ 34
6.13.1. DEFLT (Restore Factory Defaults)..................................................................... 34
6.13.2. – End – (Leaving Setup) .................................................................................... 34
7. CALIBRATION ............................................................................................................................. 35
7.1. Performing a Digital Calibration with Test Weights ........................................................... 35
7.1.1. ZERO (Zero Calibration Routine)....................................................................... 36
7.1.2. SPAN (Span Calibration Routine) ...................................................................... 36
7.2. Using Linearisation ............................................................................................................ 36
7.2.1. ED.LIN (Edit Linearisation Points)...................................................................... 37
7.2.2. CLR.LIN (Clear Linearisation) ............................................................................ 37
8. SERIAL OUTPUTS....................................................................................................................... 38
8.1. Networking the 2150.......................................................................................................... 38
8.1.1. Command Structure ........................................................................................... 38
8.1.2. Command Types ................................................................................................ 39
8.1.3. Master Serial Output .......................................................................................... 40
8.2. Printing............................................................................................................................... 41
8.2.1. Format String: Single ......................................................................................... 41
8.2.2. Format String: Total............................................................................................ 41
8.2.3. Format String: Ticket.......................................................................................... 41
9. SETPOINTS.................................................................................................................................. 42
9.1. Connection......................................................................................................................... 42
9.2. Basic Setpoint Operation ................................................................................................... 42
9.2.1. Configuring a Setpoint........................................................................................ 42
9.3. Setpoint Options ................................................................................................................43
9.3.1. SOURCE (None, Gross, Reading, Total)........................................................... 43
9.3.2. ALARM (None, Single, Double) ......................................................................... 43
9.3.3. FLASH (None, Flash)......................................................................................... 43
9.3.4. ARROW (None, Active)...................................................................................... 43
9.4. Operator Parameters ......................................................................................................... 43
9.4.1. Targets ............................................................................................................... 43
9.4.2. Hysteresis........................................................................................................... 43
10. SPECIAL FUNCTIONS ................................................................................................................ 44
10.1. Introduction ........................................................................................................................ 44
10.2. Key Functions .................................................................................................................... 44
10.2.1. ® BLANK (X) ..................................................................................................... 44
11. APPENDIX.................................................................................................................................... 45
11.1. Error Messages..................................................................................................................45
11.1.1. Weighing Errors.................................................................................................. 45
11.2. Diagnostic Errors ...............................................................................................................46
11.3. Setup Menu Quick Reference............................................................................................ 47
11.4. Glossary 48
11.5. List of Figures and Tables ................................................................................................. 48
12. INDEX ........................................................................................................................................... 49

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1. Introduction
The 2150 is a dedicated baggage weigher. It is a precision digital indicator using the latest Sigma-
Delta A/D converter to ensure extremely fast and accurate weight readings.
The setup and calibration are digital, with a non-volatile security store for all setup parameters.
There is an NVRAM store to ensure day to day operating settings (eg. <ZERO>, <TOTALS>,
etc.), are retained when power is removed. There is a built-in clock for date-stamping printed
outputs and the current time can be set to display at the top right of the instrument display.
The instrument has up to three internal setpoints with status display on the front panel. There are
three Input/Output points on the auxiliary connector. Each one may be configured as a remote
input or as a setpoint drive output.
1.1. 2150 Weight Indicator Illustration
Figure 1: 2150 Weight Indicator

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1.2. The Manuals
This Reference Manual is part of a set of manuals covering the setup and operation of the
Ranger 2150. The set includes the following:
• Reference Manual (this book) - Contains detailed information on the calibration and
setup of the 2150. This manual is intended for use by Scale Technicians who are
installing the instrument.
• Operator Manual - Aimed at the operation of the 2150, and covers the day to day
operation of the unit. This includes details of the operation of the front panel and
external key functions.
• Quick Start Manual - Intended for Scale Technicians who are familiar with the 2150
and simply need a quick reference to menu options and connection diagrams, etc.
1.3. Document Conventions
The following document conventions (typographical) are used throughout this Reference
Manual.
Bold Text Bold text denotes words and phrases to note.
<Key> <Key> denotes a Keypad key.
Note: In the Specifications section the < symbol means less than and
the > symbol means greater than.
… Ellipses indicate an incomplete listing. For space considerations in
this Reference Manual complete listings may not be shown.
⊗Items marked with ⊗indicate that the setting is trade critical and the
trade counter will be incremented if this setting is changed.
® Functions marked with ® are only suitable for remote inputs.

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2. Specifications
Performance
Display Backlit alphanumeric LCD with six 27mm high digits
Backlight LED backlight with adjustable brightness
Display Resolution Up to 30,000 divisions, minimum of 0.25µV/division
(Trade 6000 divisions at 1µV/division)
Count-by 1, 2, 5, 10, 20, 50, 100 (Entered in Displayed Weight)
Zero Cancellation + / – 2.0mV/V
Span Adjustment 0.1mV/V to 3.0mV/V full scale
Stability/Drift Zero: < 0.1uV/°C, Span < 10ppm/°C,
Linearity < 20ppm, Noise < 0.05µVp-p
Operating Environment Temperature: –10 to +50°C ambient, Humidity: <90% non-condensing
Digital
Setup and Calibration Full digital with visual prompting in plain messages
Memory Retention Full non-volatile operation
Digital Filter Averaging from 1 to 100 consecutive readings
Zero Range Adjustable from +/– 2% to +/–20% of full capacity
A/D Converter
Type 24bit Sigma Delta
Resolution 8,388,608 internal counts
A/D Sync Filter Fixed 25Hz, FIR filter > 80dB
Load Cells
Excitation 8 volts for up to 8 x 350 ohm load cells (6-wire + shield)
Serial Comms (Software option 0224)
Serial output Single RS-232 as automatic transmit, network or printer drive
Input / Output
Input Button Input
Output DC Volts as per Indicator voltage, 100mA maximum
Power Input
Standard General 9 to15VDC (60mA to 400mA depending on load cells and backlight)
Variants AC
DC
AC Power: 110/240VAC 50/60Hz 10VA fitted in s/s housing
DC Power: 12-24VDC 10VA fitted in s/s housing
Dimensions
Body size 189mm (L) x 99mm (H) x 23mm (D)
Panel cutout Flush mounted with cable holes drilled separately (template provided)
Features
Standard Features Five point linearity correction
Battery backed clock and calendar fitted as standard
Approvals NSC S403 approval (6000 divisions at 1µV/division).
NMI TC6033 approval (6000 divisions at 1µV/division).
C-tick approved and CE approved.
0080 (RS-232 / RS-485 Converter)
0082 Port Splitter
0083 Port Splitter
0110 12VDC 500mA Plug Pack Power Supply
0223 2150 Viewer Software and Cable
0227 Relay Output Module
0329 Stainless Steel Rear Housing, Gasket and Desk/Wall Bracket
0330 (110/240 VAC Power Supply)
0331 (12-24VDC Power Supply)
0333 Desk/Wall Bracket
Hardware Options
0348 Panel Gasket

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3. Installation
3.1. Introduction
The 2150 contains precision electronics and must not be subject to shock, excessive
vibration or extremes of temperature, either before or after installation.
The inputs of the 2150 are protected against electrical interference, but excessive levels of
electro-magnetic radiation and RFI may affect the accuracy and stability of the instrument.
The 2150 should be installed away from any sources of electrical noise. The load cell cable
is particularly sensitive to electrical noise and should be located well away from any power
or switching circuits. For EMC immunity, termination of the load cell shield at the 2150 end
is important (ie. with a sound connection to the 2150 case via the DB9 backshell).
3.2. Panel Mounting
The simplest way to mount the 2150 is to use the drill template supplied. The template
indicates positions for the drill holes for the two 4mm mounting screws through the panel.
Also displayed on the template is the position of the rectangular hole that should be cut to
allow for the connection of cables and also to display connection instructions. The drill
template supplied with the indicator allows for front or rear machining of the panel.
An optional gasket (P/No 0348) is available for panel mounting installation.
3.3. DC Power Supply
The DC supply need not be regulated, provided that it is free of excessive electrical noise
and sudden transients. The 2150 can be operated from a high quality plug-pack as long as
there is sufficient capacity to drive both it and the load cells.
Note that the rated voltage of most plug–packs is specified for loads close to but less than
their rated output. If substantially lower loads are used the voltage output rises. Conversely
if the plug pack is run at its maximum load the voltage will drop and it will run very hot.
Typically plug packs with a rating of 9VDC to 12VDC with current outputs of 0.5 to 1A are
fine. The Plug Pack 500mA, option (P/No 0110) is recommended for use with the 2150.
Figure 2: Power Connection
3.4. Load Cell Signals and Scale Build
Very low output scale bases can be used with the 2150 but may induce some instability in
the weight readings when used with higher resolutions. Generally speaking, the higher the
output, or the lower the number of divisions, the greater the display stability and accuracy.
The 2150 has a milliVolt-per-Volt reading available which can be used to check scale base
signal output levels. For more information refer to SCALE (Scale Base Test Display) page
34.

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3.5. Connecting Shields
To obtain full EMC resistance with the 2150, the load cell shield MUST be connected
electrically to the metal shell of the DB9 connector.
The easiest way to connect the cable shield to
the DB9 backshell is to fold the shield wires
back over the outside of the cable insulation so
the cable clamp of the backshell makes good
electrical contact with the shield when
installed.
A method for connecting the cable shield to the
DB9 is to twist the shield wires together and
solder the ends to the DB9 casing.
Figure 3: Cable Shield Connection
3.5.1. Cable Shield Connection and Earthing
• Care should be taken when connecting shields to maximise EMC immunity and
minimise earth loops and cross-talk (interference) between instruments.
• For EMC immunity, termination of the load cell shield at the 2150 end is important (ie.
with connection to the 2150 case via the shield connection).
• The 2150 enclosure is directly connected to the shield connections on the cables.
• The 2150 should be connected to earth via a single reliable link to avoid earth loops.
• Where each instrument is separately earthed, interconnecting cable shields should be
connected at one end only.
• Caution: Some load cells connect the cable shield directly to the load cell (and therefore
the scale base). Connection of the shield in this situation may be site specific.
• The unit complies with relevant EMC standards provided case ground connection is
correctly made. Resistance measured between 2150 case and nearest earth point
should be less than 2 ohms.
3.6. Unused Pins
It is important to note that unused pins are not to be connected. The reason being that
the functions of the pins may not be compatible with equipment at the other end (eg.
connecting output pins to a PC communications port may affect the operation of the PC).
Consequently many commercial communications cables are not suitable for use.

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3.7. Load Cell Connection
The following provides information on 6-wire and 4-wire connections.
3.7.1. 6-Wire Connection
The connection is made using a standard DB9 male plug that is supplied with the indicator.
The load cell is wired for a 6-wire system as follows:
Pin Function
1 Positive Excitation
2*Positive Sense
3 Negative Excitation
4*Negative Sense
8 Negative Signal
9 Positive Signal
*Sense lines MUST be connected.
Table 1: 6-Wire Connections
*For more information on Connecting Shields refer to page 9.
Figure 4: 6-Wire Connection
When wiring load cells, use only high quality shielded multi-core cable. The cable should be
run as far away from any other cabling as possible (minimum separation distance 150mm).

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3.7.2. 4-Wire Connection
When a 4-wire load cell system is connected, pins 1 and 2, and pins 3 and 4 must be joined
by solder bridge or wire bridge. This is to ensure that the excitation voltages are fed into the
sense inputs (pins 2 and 4). Failure to do this will result in the incorrect operation of the unit.
* For more information on Connecting Shields refer to page 9.
Figure 5: 4-Wire Connection

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3.8. Auxiliary Connection
The 2150 has a male DB9 auxiliary connector which includes the RS-232 Serial Port and
the three Input/Output connections.
Pin Function Description Connect To
1 PWR Power for communication
accessory options
DO NOT CONNECT
2 RXD RS-232 Receive Line External Device Transmitter
(Usually Pin 3 on PC DB9)
3 TXD RS-232 Transmit Line External Device Receiver
(Usually Pin 2 on PC DB9 or Pin 3 on
Printer DB25)
4 DTR DTR Handshake Line External Device Busy Line
(Usually Pin 20 on printer DB25)
5 GND RS-232 Digital Ground
I/O Common
External Device Digital Ground
(Usually Pin 5 for DB9 or Pin 7 for
DB25)
6 IO1 Input or Output 1
7 RTS Request to Send Used by Ranger 0080 RS-232/RS-485
converter
8 IO2 Input or Output 2
9 IO3 Input or Output 3
Table 2: Auxiliary Connection
Remote Display
2150 Pin Remote Display Plug
3 (TXD) RXD / Receive
5 (GND) GND / Ground
Printer
2150 Pin Printer Plug – DB25F
3 (TXD) RXD – Pin 3
5 (GND) GND – Pin 7
4 (DTR) DTR – Pin 20
Direct Computer Link
2150 Pin Computer DB-9F (DB-25F)
2 (RXD) TXD – Pin 3 (Pin 2)
3 (TXD) RXD – Pin 2 (Pin 3)
5 (GND) GND – Pin 5 (Pin 7)
Do not connect unused pins.
For more information refer to page 9.
* For more information on Connecting Shields refer to page 9.
Figure 6: Auxiliary Connection

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Figure 7: Connection of I/O Pins
3.8.1. Inputs
The 2150 assumes the I/O pin to be connected to GND (Pin 5) to register an active input
(key press, etc.). Otherwise it assumes an open circuit.
3.8.2. Outputs
The output drivers of the 2150 are non-isolated open collector transistor drives which are
capable of driving no more than 100mA each. For most applications this means that
external relays will be needed. Use the same power supply for the external relays as for the
2150 itself. Connect a good quality bypass diode across the coil of any relays used as
shown. As the relay state is changed a large voltage spike is produced the diode bypasses
the spike protecting the relay driver. (1N4004 diodes are suitable for most applications).
3.8.3. Manual Override of Outputs
Due to the way the 2150 drives the outputs, it is possible to connect an external key from
the I/O Pin to GND to implement a manual override for the output. The key state cannot be
detected by the 2150 when the I/O pin is configured as an output, but the key can be used
to directly drive the output load.

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3.9. Hardware Options
Each of the hardware options for the 2150 comes complete with detailed installation
instructions. The hardware options available for the 2150 are as follows:
3.9.1. 0080 (RS-232 / RS-422 / RS-485 Converter)
This device connects directly to the 2150 auxiliary port and converts the RS-232 signals into
RS-485 signals. No external power is required for the 0080
3.9.2. 0082 (Port Splitter)
This device connects directly to the 2150 auxiliary port. The 0082 device is designed to work
with the 2100 Indicator to split out two separate data streams from the standard RS232
communications:
1. RS-232 network port
2. RS-232 transmit only port
The 0082 uses the RTS line from the 2100 to detect which port to direct the transmission.
External power is not required for the 0082.
3.9.3. 0083 (Port Splitter)
This device connects directly to the 2150 auxiliary. The 0083 device is designed to work
with the 2100 Indicator to split out two separate data streams from the standard RS-232
communications:
1. RS-485 network port
2. RS-232 transmit only port
The 0083 uses the RTS line from the 2100 to select the transmission port. The 0083 always
receives data on the RS-485 receive pins. External power is not required for the 0083.
3.9.4. 0110 (12 VDC Power Supply)
This option is a 12 VDC 500mA plug pack power supply.
3.9.5. 0223 (Serial Communications Cable)
This is the serial communications cable for use with the free Viewer Software for setup and
calibration via PC.
3.9.6. 0227 (Relay Output Module)
The relay output module mounts directly to the rear of the 2150 case. This module houses
three 240VAC 2A relays that are driven directly by the 2150 I/O pins.
The auxiliary port is still available from the side of the 0227, which enables connection of
remote inputs and serial communications. When remote inputs are used with the 0227,
the relays operate whenever the inputs are active.
3.9.7. 0329 (Stainless Steel Rear Housing, Gasket and Desk/Wall Bracket)
The stainless steel rear housing attaches directly to a standard 2150 using the panel mount
screws provided with the instrument. The housing provides sealed cable entry for up to four
cables and a desk/wall mount swivel bracket.

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3.9.8. 0330 (110/240 VAC Power Supply)
The 110/240VAC power supply enables the 2150 to be run directly from mains power.
3.9.9. 0331 (12-24VDC Power Supply)
The 12/24VDC power supply enables the 2150 to be run essentially from any DC power
source from 10 to 28VDC or from a low voltage AC power source of 9 to 15VAC. The
power supply is compatible with the Relay Output Module (0227) with both options fitting
into the stainless steel rear housing.
3.9.10. 0333 (Desk/Wall Bracket)
This is stainless steel desk and wall mounting bracket. The stainless steel bracket includes
swivel clamps for viewing angle adjustment
3.9.11. 0348 (Panel Gasket)
This optional panel gasket is available for panel mounting installation.

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4. Application Configuration Issues
4.1. General Setup Information
The 2150 configuration and calibration can be performed entirely from the front panel, using
the digital setup facility. When Setup is used, all menu items are accessible and care must
be taken to ensure no accidental changes are made to calibration and trade settings.
Setup can be passcode protected to prevent unauthorised or accidental tampering. If the
scale has been passcode protected, the setup menus cannot be accessed until the correct
code has been entered.
4.2. Basic Weighing Terminology
The following terms are used throughout the setup procedure. Knowledge of these basic
weighing terms is beneficial in setting up and calibrating the 2150.
Note: Detailed descriptions of these and other terms used in this Reference Manual are
described in the Glossary page 48.
Term Definition
Units Units of measurement (kilograms, tonnes, pounds, etc.).
Range Total change in weight between zero gross load and full
capacity gross load
Resolution or Count-by Smallest change in weight units that the display can show.
Graduations Maximum number of display steps between zero gross load
and full capacity gross load. It is equal to the range divided by
the count-by.
Division A single graduation.
Example
A 10,000kg 2.0mV/V load cell is used in an application requiring a 5000kg range, with
weight displayed in 5kg increments.
The values are:
• Units = kg
• Range = 5000
• Count-by = 5

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Calculating the
graduations:
Signal voltages can be calculated as follows:
Calculating the
full scale signal
(load cell):
Since the 2100
uses 8V load cell
excitation, the
absolute signal
voltage is:
Calculating the
signal resolution:
4.3. Filtering Techniques
There is a trade off between noise filtering and the step-response time of the system. The
step-response is defined as the time between placing a weight on the scale and the correct
stable weight reading being displayed. This does not affect the number of readings per
second that are taken. It simply defines the amount of time that is required to determine a
final weight reading.
4.3.1. FIR (Finite Impulse Response) Filter and Reading Rate
The first level of filtering provided is a FIR filter that is linked to the measurement rate. The
measurement rate is fixed at 25Hz on the 2150. This filter is a very high performance tuned
filter that provides up to 180dB of attenuation at multiples of 25Hz and broadband filtering of
between 40 and 80dB. For example the FIR filter provides 180dB of noise rejection at
frequencies of 25, 50, 75 … Hz. The FIR filter introduces a delay of three samples to the
step-response (or 120msec).
4.3.2. Digital Averaging
In addition to the FIR filter the 2150 has a fixed length sliding window average where the
average of the last nreadings is calculated. As each new reading is taken the oldest
reading is discarded and a new average calculated. The length of the window can be
configured in steps from one reading to 100 readings and is set using the FILTER item in
the OPTION group. Each reading in the average adds a delay to the step-response equal
to the measurement period or 40msec. For example, an average of ten readings results in
the following total step-response:
(10 + 3) samples x 40milliseconds = 520milliseconds

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4.4. Trade vs Industrial Mode
The 2150 may be operated in Trade or Industrial mode. The following table lists the
operation differences for each of the two modes:
Element Trade Industrial
Underload –1% or –2% of fullscale
depending on zero range setting
–105% of fullscale
Overload Fullscale +9 divisions 105% of fullscale
De-Zero Not available Clear the zero setting with a 2
second press of the Zero Key
Test Modes Limited to 5 seconds Unlimited time allowed
Table 3: Trade vs Industrial Mode
4.5. Setup Counter
Within Setup there are a number of critical steps that can affect the calibration and/or trade
performance of the 2150. If any of these steps are altered, the trade certification of the
scale could be voided.
The 2150 provides a built in Setup Counter to monitor the number of times the critical steps
are altered. The value of this counter is stored within the unit and can only be reset at the
factory. Each time a critical step is altered, the counter will increase by one. Whenever the
2150 is powered up, or setup mode is entered, the current value in the counter is displayed
briefly.
The value of this counter is written on the tamperproof trade label on the front of the
indicator for trade-certified applications and functions as an electronic seal. If any trade
critical settings are changed on the instrument, the current value of the trade counter will be
different from the recorded value and the seal is broken. In this manual items marked with
⊗indicate that the setting is trade critical.
4.6. Passcodes
The 2150 has a passcode to provide a security lock on Setup.
Refer to FULL.PC (Security Passcode for Digital Setup) page 29 for more information.

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4.7. Data Entry
Throughout the 2150 setup and operator interface, different data entry methods are used.
Each method is described below:
4.7.1. Numeric Entry
A numeric entry box allows the input of a number. When entering a number the display will
show digits with the currently selected digit flashing. The <SEL> key is pressed to select a
digit to change. When the digit is selected the <EDT> key is pressed to change the digit
from 0through 9. The left most digit can also be changed to a dash (-) to enter a negative
number. The <OK> key is pressed to accept the number that has been entered.
Upper and lower limits are placed on some entries and an entry outside this range will
cause the 2150 to display dashes (ie. - - - - - -).
Example 1: When in Setup follow the steps below to set Build, Max Capacity.
• Press <GRP> repeatedly to display the BUILD group.
• Press <ITM> repeatedly to display the CAP item.
• Press <SEL> to select CAP and display the current setting (eg. 0000.00kg).
• The currently chosen digit will be flashing. Press <SEL> to advance to the next digit.
• When the digit to edit is flashing press <EDT> repeatedly to cycle from 0through 9.
• When the new digit to be set is flashing either press <SEL> to move to the next digit to
edit and repeat the previous step; or press <OK> to accept all of the displayed digits
(including the flashing digit) and re-display the item name.
4.7.2. Selections and Options
A selection entry requires the choice of a single option from a list. When a Group and Item
have been chosen, the <SEL> key is used to display the current setting for that item. The
<EDT> key can be used to cycle through the options for that item. When the desired option
is displayed the <OK> key can be pressed to accept the displayed option and re-display the
item name.
Example 1: When in Setup follow the steps below to set Special Settings, Backlight.
• Press <GRP> repeatedly to display the SPEC group.
• Press <ITM> repeatedly to display the B.LIGHT item.
• Press <SEL> to select B.LIGHT and display the current setting.
• Press <EDT> to cycle through the options for that item.
• Press <OK> to accept the displayed option and re-display the item name.
Example 2: When in Setup follow the steps below to set Serial, Bits.
• Press <GRP> repeatedly to display the SERIAL group.
• Press <ITM> repeatedly to display the BITS item.
• Press <SEL> to select BITS and display the current settings.
• The currently chosen digit will be flashing. Press <SEL> to advance to the next digit.
• When the digit to be set is flashing press <EDT> to cycle through the options for that
digit.
• When the desired digit option is flashing press <OK> to accept the setting and re-display
the item name.

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5. Basic Operation
The 2150 is a dedicated baggage weigher for use in airports and similar applications
5.1. User Interface Display and Controls
Figure 8: 2150 User Interface Display and Controls Illustration
5.1.1. Front Panel: Visual Display
The front panel of the 2150 has a six digit LCD display. Figure 8 shows the main elements
of the front panel.
The 2150 has five main display sections for the visual output of weight information. Each
display section is described below:
• Weight Display
The Weight Display indicates the weight readings, setup information, errors and
warnings.
• Auxiliary Display
The Auxiliary Display can be set to show the current time in 24 hour format, the bag
count or it can be turned off. When the 2150 is setup to show bag count, and less than
100 bags are counted, the auxiliary display will show B-xx. The xx represents the
number of bags displayed. When the number of bags counted is greater than 100, xxx
is displayed. The xxx represents the number of bags displayed.
• Unit Indicator
The Unit Indicator displays the units of the weight reading as either grams (g),
kilograms (kg), pounds (lb) or tonnes. If the instrument is set up to show the number of
bags the units will show pieces (p).
• Output Display
The Output Display shows the output status of the three possible outputs (ie. 1, 2 or 3).