Salter Brecknell S122 User Manual
S122
Light Industrial Scale
User / Service Instructions
ENGLISH
76104-180 Issue 0
*76104-180*
21.07.2004
IMPORTANT
s
Before using the scale for the first time remove foam
packing from under the
shroud.
1. Lift off wei gh plate
2. Remove 4 x foam packaging block
3. Replace shroud
©Salter Brecknell 2005. All rights reserved.
The information contai ned herein is the proper ty of Salter Brecknell Limited and is
supplied wi thout liability for errors or omissions. No part may be reproduced or used
except as authori
foregoing restriction on reproduction and use extend to all media in which the
zed by contract or other written permission. The copyright and t he
information may be embodied.
Contents
3.0 Switching on the scale 13
page no.
1Warnings
1.1 Electr ic al in s t alla t ion 7
1.2 Risk of electric shock
1.3 Additional service precautions
1.4 Safe handling
1.5 ESD handling precautions
8
2 Introduction
2.1 Features 9
2.2 Keys
2.3 Error messages
10
3 Using the scale
3.1 Zeroing the scale 15
3.2 Data entry keys 1
3.3 Selecting weighing or counting 1
3.4 Using the backlight (option) 16
3.5 Switching between kgs and lbs 16
3.6 Sampling 1
3.7 Counting
3.8 Totali
3.9 Recalling totals 19
3.10 Cance
3.11 Check
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
18
zing 19
ling totals 20
weighing 21
7
7
8
12
5
6
7
S122 User / Service Instructions 4
Contents
3.11.5 Limit indicators
3.12 Using tares 2
4 Installation/Maintenance
4.1 Connecting the column 28
4.2 Connecting the indicator 3
4.3 Opening the covers 3
4.4 RS232 PIN assignments 3
4.6 Replacing a load cell 33
5 Configuration Mo de
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 - check
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
weighing function 46
5
0
1
2
5 S122 User / Service Instructions
Contents
6
Wiring Diagrams
6.1 Power supply connections 58
6.2 Main board connections 59
6.3 Load cell connections 60
7 Parts L ists
7.1 Illustrated part lists 61
7.2 Additional parts 62
S122 User / Service Instructions 6
1.1 Electrical installation 1 Warnings
1 Warnings
1.1 Electrical installation
The power cord must be connect ed to a su pp ly outlet with a
protective e arth
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 re adily a cce ssi b le d isc on nect device
incorporated i n the fixe d w iring.
For your protection all (110V or 230 V ) 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
ground. The electr ica l s upply at t he sock et
This eq uip men t i s power e d by AC v o ltag e wh ich pr esen ts
an electric shock ha zard.
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.
7 S122 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
● All tools used must have insulated handgrips. T est probes
standing the existing voltages.
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 o r su p porting the scale, ta ke 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.
8 S122 User / Service Instructions
1 Features 2 Introduction
2 Introduction
2.1 Features
1. High performance A/D converter.
● 0.3µv/ se n s i tivity
● Sample speed 16 times / second
● Maximum resolution : 15000
● Non-l inearity 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 s tability
from 01 ~ 15.
3. Depending on the calibration division:
● Standard division (under 10000)
Capacity and weight must be calibrated.
● Hi gh precision division (over 10000 to 150000
divisions)
Linearity, capacity and weight must be calibrated.
4. Option with RS232 output .
5. Three opti ons for the HOLD function.
6. AC / DC po we r su ppl y.
7. LCD display.
8. Auto-power cut off to ensure performance stability.
Power is cut off au tomatically if the power is below the
low battery warn ing .
9. Built-in backlight.
S122 User / Service Instructions 9
2 Introduction 2.2 Keys
ENTER
CLEAR ENTRY
COUNT
SAMPLE
CLEAR ENTRY
2.2 Keys
ZERO
Zero key. Remove any weight on the platform before
pressing the key.
Data ent ry key . Increm ents the valu e of the select ed
digit.
Displays the backlight option.
Data entry key. Go to the next d igit.
Resets all values o n th e c urren t disp lay to ze ro .
Selects units of measure.
Switch es between kgs and lbs.
10 S122 User / Service I nstructions
RECALL
Selects counting mode.
Sample key. Disp l ays the nu mb er of items in the
sample.
Totalize key. Displa ys th e cou nt n umb e r and total
weight each time y ou add a w eight to th e 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
while the count number or total is
displayed.
2.2 Keys 2 Introduction
TARGET
TARE
RECALL
CLEAR ENTRY
Sets checkweighing limits and beep option when in
counting mode.
Tares off the displayed weight of a container.
Enables you to enter a tare value when no weight is
on the platform. To view a tare press
followed by the tare key. To cancel a tare remove the
container and press the tare key. To cancel a preset
tare press
while the ta re is dis played.
S122 User / Service I nstructions 11
2.3 Error messages 2 Introduction
-
-
2.3 Error messages
E1 When the scale is switched on, the we i ght on the
platform is above or greater than the automatic zero
range (greater than 10% o f th e ca p acity o f the sca l e) .
Make sure that there is no weight on the platform. If the
error persists, re-calibrate the m ac hine.
E2 When the scale is switched on, the we i ght on the
platform is below or low er tha n the a utom a tic zer o
range (greater than 10% o f th e ca p acity o f the sca l e) .
Correct service set up procedure has not been
followed. Ensure calibration weight is applied and
removed exactl y i n accordance with in structions.
E3 Not used.
E4 The weight on the platform is unsteady.
E5 There is a problem with the load cell. Check the wiring
(see
page 60). If th e err or pers is ts , re pla ce t he l oad ce ll
(see page 33).
E6 The internal zero value is greater than 360,000. The
error may occur in calibration mo de.
E7 The internal zero value is less than 24 0,000. The error
may occur in cali br ation mo de .
E8 This m essage will only app ear for legal for trade scales.
If you are configuring the ca paci ty of the
number of divisions cannot exceed 10,000.
--OL-
-----
S122 User / Service I nstructions 12
The weight is greater th an the ca pa city o f the
Temporary error. Remove any weight from the platform,
switch off and then on ag a in. If this e rror p ersis ts,
contac t y o ur authori
zed servi c e agent.
scale, the
scale.
Connecting to the AC power supply.
Make sure that there is no weight on the platform before switching
on.
Plug the power supply lead into the scale.
Make sure that the battery switch is set to the internal battery.
When the scale is connected to the AC powersupply you will
see a red, yellow or green charging lamp depending on the
condition of the internal battery.
Using batteries
You can either use the internal rechargeable battery or use 6 size
’D’ cell batteries (alkaline batteries are recommended).
Use the battery switch to select either the internal battery or the ’D’
cells.
S122 User / Service Instructions
13
3.0 Switching on the scale.
When
this symbol flashes, you should either replace the ‘D’ cell
batteries or recharge the internal battery.
Do not leave discharged batteries in the scale, asthey may leak
and cause serious damage. Do not store the machine with 'D' cell
batteries in the battery compartment.
Recharging the internal battery
While the machine is connected to the AC power supply and
internal battery is being recharged, the power supply light will turn
red, yellow, and then green.
To maintain the rechargeable battery in good condition, it should be
kept fully charged wherever possible. If the battery is to be stored,
the rechargeable battery should be fully charged before storage
and then recharged at 3 month intervals.
Disposing of the scale.
The scale contains a lead-acid battery. When disposing of the
machine, you should take it to an appropriate recycling facility.
S122 User / Service Instructions
14
Switching on the scale.
3.1 Zeroing the scale 3 Using the scale
ENTER
CL
EAR ENTRY
3 Using the scale
Depending on the option of the machine, some functions
may not be available.
If the ▼ icon abov e th e STABLE legend flashes while you are
using the
unsteady.
3.1 Zeroing the scale
Remove any weight from the platform.
scale, it means that the weight on the platform is
ZERO
3.2 Data entry keys
Whenever you nee d to enter va lues wh en se tting totalizi ng,
check
weig hi ng or pre-set tare s , use the fo llowing k e y s:
Increments the value of the selected digit.
Go to the next digit.
Restore all settings on the current display to zero.
.
0000
lb
S122 User / Service I nstructions 15
3 Using the scale 3.3 Selecting weighing or counting
3.3 Selecting weighing or counting
COUNT
Weighing mode
Counting mode
If no s amp le size ha s be en set you wi ll b e p r ompte d to s ampl e
some items
.
3.4 Using the backlight (option)
Each press of t he back l ig ht key sho ws :
bL. On
bL. OFF
bL.AUtO
Always on
Always off
Automati c back l ight
If set to automatic, the backlight comes on automatically when
the indicator is being used. A backlight may not be available
on some
scale.
3.5 Switching between lbs and kgs
16 S122 User / Service I nstructions
3.6 Sampling 3 Using the scale
3.6 Sampling
When s e le c ting the number of i t e m s you wish t o use as a
sample remem ber th at the la rg er the samp l e size , the m o re
accurate the counting will be.
Disp la y sample num b e r
MPLE
SA
Place sample items on the platform
C 10
C 20
C 50
C 100
COUNT
If you see ▼ above the piece weight icon it means that the
unit weight of each item is too small and this may lead to an
inaccurate coun t.
Unit weight too small
SAMPLE
C 10
C 20
PIECE
WEIGHT
C 50
C 100
COUNT
S122 User / Service I nstructions 17
3 Using the scale 3.7 Counting
If you see ▼ above the add to sample icon it means that the
weight of the sample is too small. Unless you increase the
weight of the sample the count may be inaccurate count. You
should select a greater number of samples and add these to
the sc al e.
Weight of sample too small
SAMPLE
C 10
C 20
ADD TO
SAMPLE
COUNT
C 50
C 100
3.7 Counting
Select either weighing or counting mode:
Weighing mode
COUNT
Count in g mo de
If you sel ect counti ng mode an d no sampl e size has be en s et
you will be prom pted to sa mple some i tems
18 S122 User / Service I nstructions
.
3.8 Totalizing 3 Using the scale
3.8 Totalizing
or each weight that you want to add:
F
lb
ADD
The count number and then the total weight will each be displayed
for a few seconds.
lb
Remove the w eigh t from the p latfor m wh en finish ed .
3.9 Recalling totals
The count number and then the total will each be displayed for
a few seconds before returning to the current display.
RECALL
- 0004- 2043
S122 User / Service I nstructions 19
lb
lb
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