Western Scale M1 User manual

M1 INDICATOR
TECHNICAL MANUAL
SOFTWARE RELEASE 1.41, 09/2009
Copyright © 2008, 2009 Western Scale Co. Limited. All rights reserved.
Published by: Western Scale Co. Limited.
Information in this Installation / Technical Manual is subject to change without
notice due to correction or enhancement. The information described in this
manual is the property of Western Scale Co. Ltd. No part of this manual may be
reproduced or retransmitted in any form, without the expressed written
permission of Western Scale Co. Ltd.
Western Scale Co. Limited
1670 Kingsway Avenue
Port Coquitlam, B.C.
CANADA
V3C 3Y9
Tel: [phone]
Fax: [phone]
[email protected]
www.westernscale.ca
FOR TECHNICAL SUPPORT REGARDING THIS PRODUCT, PLEASE CALL
YOUR AUTHORIZED WESTERN DEALER:

1
Indicator Technical Manua
l
TABLE OF CONTENTS
INTRODUCTION ............................................................................................................................. 2
Safety .......................................................................................................................................... 2
Features ...................................................................................................................................... 3
Specifications .............................................................................................................................. 3
DISPLAY & ANNUNCIATORS ........................................................................................................ 4
Weight Display ............................................................................................................................ 4
Annunciators ............................................................................................................................... 4
KEYPAD & SCALE FUNCTIONS.................................................................................................... 6
INSTALLATION ............................................................................................................................... 8
Pre-Installation ............................................................................................................................ 8
Opening the M1 Enclosure.......................................................................................................... 8
Load Cell Wiring .......................................................................................................................... 9
Communications Wiring (RS 232)............................................................................................. 10
Remote Switch Wiring............................................................................................................... 11
Battery / Battery Replacement .................................................................................................. 11
Closing the M1 Enclosure ......................................................................................................... 12
Mounting Instructions ................................................................................................................ 12
START-UP..................................................................................................................................... 13
TIME & DATE ................................................................................................................................ 13
CALIBRATION MODE................................................................................................................... 14
Calibration Keys ........................................................................................................................ 14
Entering Calibration Mode......................................................................................................... 14
Navigating Calibration Parameters ........................................................................................... 15
Editing Calibration Parameters ................................................................................................. 15
Exit & Save Calibration ............................................................................................................. 15
CALIBRATION PARAMETERS..................................................................................................... 16
Scale Calibration Sub-block 1.x ................................................................................................ 16
Zero and Motion Settings Sub-block 2.x ................................................................................... 17
Tare Settings Sub-block 3.x ...................................................................................................... 18
Scale Filtering Settings Sub-block 4.x....................................................................................... 19
Serial Communications Sub-block 5.x ...................................................................................... 20
Serial Communications Sub-block 5.x (Continued) .................................................................. 21
Ticket Formatting Sub-block 7.x................................................................................................ 22
Additional Scale Functions Sub-block 8.x................................................................................. 23
Scale Diagnostics Sub-block 9.x............................................................................................... 24
QUICK SCALE CALIBRATION ..................................................................................................... 25
REMOTE DISPLAY MODE ........................................................................................................... 26
USER MENU ................................................................................................................................. 28
SEALING THE INDICATOR (LEGAL FOR TRADE) ..................................................................... 29
TROUBLESHOOTING & ERROR MESSAGES............................................................................ 30

2
Indicator Technical Manua
l
INTRODUCTION
Best suited to bench and floor scales, the M1 is a basic, 5 button indicator that
features the same high resolution and speed found in other Western instruments.
A compact stainless steel enclosure and large display make the M1 perfect for
virtually all light industrial weighing applications while advanced features like time
& date and programmable tickets ensure the M1 will continue to meet customer
requirements into the future.
Western’s continued dedication to durability, functionality, and versatility make
the M1 engineered for the diversity of the weighing industry.
The following User information is for the exclusive use of WESTERN Dealers and
Customers.
Safety
Installation, configuration, and servicing are only to be done by qualified Scale
Service Technicians as authorized by Western.
Power must be disconnected before servicing the unit. Disconnection from the
line voltage is done by disconnecting the mains plug.
This equipment must be connected to a socket-outlet with a protective earthing
connection. The socket outlet shall be installed near the equipment, and shall be
easily accessible.
This equipment is intended for connection to multiple RATED VOLTAGES or
FREQUENCIES. The switchover to the corresponding voltage is done
automatically by the equipment.
Scale Service Technicians handling M1 PCBs must observe
proper electrostatic discharge (ESD) handling procedures.
ATTENTION! Unauthorized installation and service of this unit
may void the warranty.
CAUTION! HIGH VOLTAGES are present inside the M1
indicator enclosure.

3
Indicator Technical Manua
l
Features
Simple Interface
•Large, easy to read LED display digits (7/8ths inch / 22 mm)
•Oversize keys with international symbols
•8 Annunciators display scale data
•MENU key accesses tickets and macro functions
Durability
•Compact enclosure with swivel bracket
•304 stainless steel construction
Excellent Serviceability
•Easy to navigate software menu and calibration
•Calibrate to any test weight value
•Terminal wiring
Advanced Capabilities & Quality
•MACRO II Ticket System
•Time & Date
•2 Year Warranty
•MADE IN CANADA.
Specifications
Excitation: 5 VDC, Up to 4 x 350 Ωor 8 x 700 Ωload cells
Analog Input Range: 0 - 20 mV
Resolution: 10,000d Class III / IIIL; 20,000d Class IIIHD (Can.)
1 million internal counts
Measurement Speed: 80 weight samples/sec.
Power: AC Input: 90 - 240 VAC
Consumption: 500 mW
Display: 6 digit, 7 segment LED weight display
8 LED annunciators
Communications: 2 Full duplex RS-232 serial ports
Configurable data format
Selectable output strings
Temperature Range: 14°F to 104°F / -10°C to 40°C
Approvals: NTEP & Measurement Canada approved

4
Indicator Technical Manua
l
DISPLAY & ANNUNCIATORS
The M1 uses a high intensity Light Emitting Diode (LED) display with a quick
update rate. The LED annunciator lamps communicate scale status and mode
information to the user.
Weight Display
•6 digits (7 segments each). Up to 3 decimal points.
•Negative weights are indicated by a minus sign (-) on the far left character.
Annunciators
CENTRE ZERO: The scale is within ±0.2 graduations of TRUE
ZERO.
MOTION: The scale is in motion.
GROSS: The scale is in GROSS weighing mode.
NET: The scale in NET weighing mode (a tare weight is stored)
M1 Display

5
Indicator Technical Manua
l
Annunciators (Continued)
lb: The scale is weighing in POUNDS.
kg: The scale is weighing in KILOGRAMS.
oz: The scale is weighing in OUNCES.
g: The scale is weighing in GRAMS.
Some annunciators may not function the same way in Remote
Display Mode. For more information, see page 26.

6
Indicator Technical Manua
l
KEYPAD & SCALE FUNCTIONS
The M1 indicator utilizes 5 keys for operator interfacing. To maximize indicator
functionality, some keys perform multiple functions.
Press the key: MENU - Cycles through the User MENU to access
additional Scale Tickets and functions (See Pg. 28).
Press & hold
the key (2 sec): UNITS - Toggles between Primary, Secondary and
Tertiary Weighing Units (if enabled).
Alternate Units may be selected or disabled in
Calibration Mode by Qualified Technicians.
Press the key: GR/NT - Toggles between GROSS and NET
weighing modes if a tare value is stored.
Press & hold
the key (2 sec): CLEAR - Clears any previously acquired tare
values. When used in Legal for Trade
applications, tares can only be cleared when
GROSS weight is at no load.
Clears Peak Hold (locked weight) values when
Peak Hold function is enabled.
M1 Keypad

7
Indicator Technical Manua
l
TARE: Acquires a tare value from weight on the scale
(Container, Box, etc.).
The indicator will not tare if:
•Weight on the scale is in MOTION;
•The scale weight is zero or negative;
When one of these situations occurs, the display
will briefly read “Err 2”.
The TARE button may be disabled in Calibration Mode
by Qualified Technicians.
ZERO: Sets the weight display to ZERO.
The indicator will not zero if:
•Weight on the scale is in MOTION;
•The weight on the scale exceeds the allowed
ZERO RANGE (Display reads “Err 4”).
PRINT: Transmits data string or scale ticket through COM1.
NOTE: If multiple tickets are programmed, Ticket 1 is
always assigned to the PRINT key.
In Canadian Legal for Trade applications, previous tare weights
must be cleared before a new tare weight can be acquired.

8
Indicator Technical Manua
l
INSTALLATION
Pre-Installation
It is always good practice to verify that your Western M1 indicator is complete
and undamaged upon receipt.
•Check over packaging for any signs of damage.
•Remove M1 from protective packaging and check for damage.
•Verify that the box includes the M1 indicator complete with:
oUser Manual;
oMounting bracket and thumb screws.
Opening the M1 Enclosure
1. Make sure the unit is disconnected from power.
2. Remove the screws from the back of the enclosure.
3. Lift the back cover away from the enclosure. Be sure to observe proper
ESD procedures when handling PCBs.
1. M1 PCB
2. Power Supply Module
3. Load Cell Terminal Block
4. Load Cell Jumpers (Sense)
5. Com1 Terminal Block
6. Com2 Terminal Block
7. 90 - 240 VAC Terminal Block
8. Grounding Posts
9. Back Cover (w/ Strain-reliefs
and power cable
10. Batter
y
1 2
6
5
4
7
8
9
3
8
CAUTION! HIGH VOLTAGE! Only trained personnel should
access any internal wiring and/or components.
10