Salter Brecknell S122 User manual

76104-180 Issue 0 *76104-180* 21.07.2004
ENGLISH
S122
Light Industrial Scale
User / Service Instructions

IMPORTANT
Before using the scale for the first time remove foam
packing from under the shroud.
1. Lift off weigh plate
2. Remove 4 x foam packaging block
s
3. Replace shroud

©Salter Brecknell 2005. All rights reserved.
The information contained herein is the property of Salter Brecknell Limited and is
supplied without liability for errors or omissions. No part may be reproduced or used
except as authorized by contract or other written permission. The copyright and the
foregoing restriction on reproduction and use extend to all media in which the
information may be embodied.

S122 User / Service Instructions 4
Contents
page no.
1Warnings
1.1 Electrical installation 7
1.2 Risk of electric shock 7
1.3 Additional service precautions 7
1.4 Safe handling 8
1.5 ESD handling precautions 8
2 Introduction
2.1 Features 9
2.2 Keys 10
2.3Error messages 12
3 Using the scale
3.1 Zeroing the scale 15
3.2 Data entry keys 15
3.3 Selecting weighing or counting 16
3.4 Using the backlight (option) 16
3.5 Switching between kgs and lbs 16
3.6 Sampling 17
3.7 Counting 18
3.8 Totalizing 19
3.9 Recalling totals 19
3.10 Canceling totals 20
3.11 Checkweighing 21
3.11.1 Setting check-weighing limits
3.11.2 To set the lower limit
3.11.3 To set the higher limit
3.11.4 To set the alarm

5S122 User / Service Instructions
Contents
3.11.5 Limit indicators
3.12 Using tares 25
4 Installation/Maintenance
4.1 Connecting the column 28
4.2 Connecting the indicator 30
4.3 Opening the covers 31
4.4 RS232 PIN assignments 32
4.6 Replacing a load cell 33
5 Configuration Mode
5.1 Entering configuration mode 34
5.1.1 Service mode keys 35
5.2 Configuration menu 36
5.2.1 F6 - exiting configuration mode 37
5.3 F0 - weight calibration 38
5.4 F1 - specification settings 40
5.4.1 Keyboard check 40
5.5 F2 - noise filter setting 44
5.6 F3 - zero display setting 45
5.7 F4 - checkweighing function 46
5.8 F5 - print option 48
5.8.1 Printer outputs
5.8.2 RS232 interface specification
5.8.3 Data format
5.9 F6 - exiting configuration mode 55
5.10 F7 - displaying the internal count 55
5.11 F8 - setting the hold function 56
5.12 F9 - software lock 58

S122 User / Service Instructions 6
Contents
Wiring Diagrams
6.1 Power supply connections 58
6.2 Main board connections 59
6.3 Load cell connections 60
7Parts Lists
7.1 Illustrated part lists 61
7.2 Additional parts 62

1.1 Electrical installation 1 Warnings
7S122 User / Service Instructions
1 Warnings
1.1 Electrical installation
The power cord must be connected to a supply outlet with a
protective earth ground. The electrical supply at the socket
outlet must provide over current protection of an appropriate
rating.
Pluggable equipment must be installed near an easily
accessible socket outlet. Permanently connected equipment
must have a readily accessible disconnect device
incorporated in the fixed wiring.
For your protection all (110V or 230V) equipment used
out of doors or in wet or damp conditions should be supplied
from a correctly fused source and protected by an approved
RCD to BS7071 or BS7288 or BS4293. IF IN DOUBT SEEK
ADVICE FROM A QUALIFIED ELECTRICIAN.
1.2 Risk of electric shock
This equipment ispowered by ACvoltage which presents
an electric shock hazard.
Always completely disconnect the power supply:
●Before removing the scale covers
●Before performing any routine maintenance
●Before cleaning the scale
1.3 Additional service precautions
●When the covers are removed, do not apply power to the
unit unless specifically instructed to do in this handbook.
●When working on live equipment, exercise great care,
use insulated tools and test equipment, and do not work
alone.

8S122 User / Service Instructions
1 Warnings 1.4 Safe handling
●When testing or fault finding, exercise extreme care.
Ensure that any test equipment used is in good condition
and capable of with standing the existing voltages.
●All tools used must have insulated handgrips. Test probes
and jumper leads must be in good condition with
adequate insulation. Test probes with claw ends and
jumper leads must not have insecure parts that may fail
during use.
1.4 Safe handling
When lifting, moving or supporting the scale, take its
weight into consideration.
1.5 ESD handling precautions
When handling printed circuit boards and electronic
components, observe the following ESD handling
precautions:
●Wear an grouned antistatic wrist strap.
●Ensure that all electronic components/boards are stowed
appropriately, by use of conductive/antistatic work
surfaces and packaging.

1 Features 2 Introduction
S122 User / Service Instructions 9
2 Introduction
2.1 Features
1. High performance A/D converter.
●0.3µv/ sensitivity
●Sample speed 16 times / second
●Maximum resolution : 15000
●Non-linearity 0.01 % FS
●-1 mv ~ +5 mv
●Used range -1 mv ~ +14 mv
●Load cell excitation power 5VDC ±5% 100mA.
2. Adjustable noise filter setting for the range of stability
from 01 ~ 15.
3. Depending on the calibration division:
●Standard division (under 10000)
Capacity and weight must be calibrated.
●High precision division (over 10000 to 150000
divisions)
Linearity, capacity and weight must be calibrated.
4. Option with RS232 output .
5. Three options for the HOLD function.
6. AC / DC power supply.
7. LCD display.
8. Auto-power cut off to ensure performance stability.
Power is cut off automatically if the power is below the
low battery warning.
9. Built-in backlight.

10S122 User / Service Instructions
2 Introduction 2.2 Keys
2.2 Keys
Zero key. Remove any weight on the platform before
pressing the key.
Data entry key. Increments the value ofthe selected
digit.
Displays the backlight option.
Data entry key. Go to the next digit.
Resets all values on the current display to zero.
Selects units of measure.
Switches between kgs and lbs.
Selects counting mode.
Sample key. Displays the number of items in the
sample.
Totalize key. Displays the count number and total
weight each time you add a weight to the platform.
Remove the weight from the platform when finished.
Recall totals. Displays the count number and then
the total for a few seconds. To cancel totals press
whilethe count number or total is
displayed.
ZERO
ENTER
CLEAR ENTRY
COUNT
SAMPLE
RECALL
CLEAR ENTRY