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

3 Using the scale 3.10 Canceling tota ls

3.10 Canceling tota ls

Press the clear key while the count number or total is displayed.

RECALL

CLEAR ENTRY

20 S122 User / Service I nstructions

3.11 Checkweighing 3 Using the scale

3.11 Checkweighing

3.11.1 Setting check-weighing limits

Select either weighing or counting mode:

Weighing mode

COUNT

Count in g mo de

If you select counting mode and no sample size has been set
you will be prompted to sample some items

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

S122 User / Service I nstructions 21

3 Using the scale 3.11 Checkweighing

3.11.2 To set the lower limit

Example: 50 items

TARGET

0- - - -L

To move along the display:

ENTER

00000l

4 time s

To change the displayed value:

00005 l

5 times

To move along the display:

ENTER

00005 0

twice

To enter the lower limit:

ENTER

0- - H

22 S122 User / Service I nstructions

--

.11 Checkweighing 3 Using the scale

3.11.3 To set the higher limit

Example: 1000 items

To move along the display:

ENTER

000- -H

twice

To chan ge the disp la ye d va lue:

000- -H

001000

4 times

To enter the hi gher limit:

ENTER

0- b

S122 User / Service I nstructions 234

3 Using the scale 3.11 Checkweighing

3.11.4 To set the alarm

Example: beep when between targets

To move along the display:

ENTER

00b

To change the displayed value:

01b

To enter the alarm setting:

ENTER

0

The target b

eep can be:

00 = No target b
01 = B

eep when between targets

02 = B

eep when outside targets

eeps

3.11.5 Limit indicators

While using the scale you will see the following indicators to tell
you the status of the check-weighing:

LOW

OK

HIGH

24 S122 User / Service I nstructions

The weight/number of items is below the lower limit.

The weight/number of items is between the upper and lower
limit.

The weight/number of items is above the upper limit.

Using tares

If you select counting mode and no sample size has been set you will be
prompted to sample some items.

Creating a tare

Viewing a tare

Canceling a tare

S122 User / Service Instructions

25

Creating a preset tare

Example: 1lb

Reviewing a pre-set tare value

S122 User / Service Instructions

26

Canceling a pre-set tare

S122 User / Service Instructions

27

4.1 Connecting the column 4 Installation/Maintenance

4 Insta llation/Maintenance

4.1 Connecting the column

1. Lift the weigh p late off th e platfo rm an d rem ove th e
packin g m aterial .

2. Thread th e l oad cell cable A th roug h the c olumn .

3. Fasten the column to the platform using th e Allen ke y B
provided.

A

E

B

C

D

4. Remove the knob C from the brac ke t D and slide the
hinge apart slightly so that the plug can be threaded
through the cent

er of the bracket. Re assemb l e the

bracket.

S122 User / Service I nstructions 28

4 Installation/Maintenance 4.1 Connecting the column

5. For legal for trade scales, make sure that the grounding
connector E is a ttached to the li p of the co l umn . If a
ferrite

bead is used it should hang on wire between connect or

A and bracket D.

6. Fasten the bracket to the colu mn. Ma ke su re that the
clamp is at the back of the

scale.

7. For legal for trade scales in US territory the scale must
be seal ed in the following mann er.

29 S122 User / Service I nstructions

4.2 Connecting the indicator 4 Installation/Maintenance

A

4.2 Connecting the indicator

1. Slide the indicator onto the bracket until it clicks into
place.

2. Plug the conn e ctor from the platform into the ind icato r.

B

3. To adjust the angle of the indicator, loosen the knob A
and move the indicator until it clicks into the required
position.

4. To re move th e indi cator, disconnect, then pres s the
release catch B and carefully sl ide the ind icato r off the
platform.

S122 User / Service I nstructions 30

4 Installation/Maintenance 4.3 Opening the covers

4.3 Opening the covers

You will need to remove the covers in order to set up RS232 PIN
connections

.

Electrostatic sensitive device
Obser ve all precaution s fo r handli n g e l e ctr ostatic
discharge sensitive devices.

1. If required, remove the indicator from the column.

2. Remove the battery cover.

3. Unscrew an d re m o ve the two cro ss-head screws.

4. Press in the bottom c over a t poi nt A to re leas e the c lips
on either side of the head. Th en ca re fully sl ide the
covers apart. You do not need to disconnect any of the
wiring.

5. To set up the PIN connections for RS232
communications, see section

6. Reassemble the covers replacing the screws.

7. Replace the indicator onto the column.

31 S122 User / Service I nstructions

4.4.

4.4 RS232 PIN assignments 4 Installation/Maintenance

4.4 RS232 PIN assignments

The RS232 serial communications board allows the indicator
to send data to an e xte rnal de vice suc h a s a printer or
computer. The default baud rate is 2400. To change the
setting
communication board is s h own on page 59. .

J1 and J3 SHORT; J2 and J4 OPEN (default)
PIN 2 RXD

PIN 3 TXD
PIN 7 GND

Other pins are not used.

J2 and J4 SHORT; J1 and J3 OPEN
PIN 2 TXD

PIN 3 RXD
PIN 7 GND

Other pins are not used.

s see section

5.8. The wiring circuit of the RS232

S122 User / Service I nstructions 32

4.6 Replacing a load cell 4 Installation/Maintenance

4.6 Replacing a load cell

1. Switch off and disconnect the scale from the AC
power supply.

2. Remove the shroud.

3. Discon nect a nd re mov e th e indi cator fr om th e c olumn.

4. Remove the knob from the bracket and slide the hinge
apart slightly so that the plug can be threaded through
the cent

5. Remo ve the bracket from the top of the co lum n .

6. For legal for trade scales, remove the grounded connection.

7. Remove the column.

8. Remove the two clips holding the cable to the platform.

9. Remove the four M8x 20mm socket head screws and
remove the

Note: these bolts will be very tight.

er of the bracket. Reass emb le th e bra cke t.

load bridge.

10. Turn the platform over and remove the four M8x 20mm
socket head screws hold ing the load cell to the platform.

Note: these bolts will be very tight.

11. Remove the load cell. Desolder the plug and retain.

To replac e the load cell, reverse the above procedure and
resolder the plug if necessary.

Torque settings for all bo lts to th e load c ell are: 440 pound-force.

S122 User / Service I nstructions 33

5.1 Entering configuration mode 5 Configuration Mode

5 Configuration Mode

5.1 Entering configuration mode

In order to enter co nfigura tion mod e you mus t first se t the
configuration switch to the unlocked position. The switch is
located under the tamper proof s eal above the serial comm
socket on the right-hand side of the head.

Locked position Unloc ked position

unication

Set the configuration switch to
the unlocked position.

S122 User / Service I nstructions 34

5 Configuration Mode 5.1 Entering configuration mode

u

s
Releas e the key.

CLEAR ENTRY

ENTER

ZERO

While the test is dis pla yed ,
p

ress and hold the key until yo

ee ...

ZERO

5.1.1 Service mode keys

The following keys are available in service mode:

TARE

Accept the entered values and go to the next section.

35 S122 User / Service I nstructions

Cancel all values for the current display.

Go to the next digit or field.

Increment the value of the current (usually flashing) digit.

Go to previous digit

5.2 Configuration menu 5 Configuration Mode

TARE

5.2 Configur ation menu

The menu con sists o f functi ons F 0 to F 9. To go do w n the
functi ons pres s

press (F9 to F0).

F0
F1
F2

F3
F4
F5

F6

TARE

F7

F8
F9

(F0 to F9) . To go back up t he func tions

Function descrip tionFunction number

Weight calibration
Specification settings
Noise filter sett ing

Zero display setting
Check-weighing set tings
Print option

Exit configurat ion mode
Display internal val ue

HOLD function
Software lock

See page...

Page 38
Page

Page

Page
Page
Page

Page
Page
Page
Page

40
44

45
46
48

37
55
56
5

8

S122 User / Service I nstructions 36

5 Configuration Mode 5.2 Configuration menu

ENTER

5.2.1 F6 - exiting configuration mode

Remember to se t the co nfigura ti on swi tch back to the locked
position.

TARE

or

Set the configuration switch to
the lock ed pos ition.

F6

.

0000

lb

37 S122 User / Service I nstructions

5.3 F0 - weight calibration 5 Configuration Mode

ENTER

ENTER

5.3 F0 - weight calibration

● Ensure the hold function (F8) is set to hold 0.

Please remembe r .....

The c ali bration we ig ht must be over 0 weight or any weigh t
less than the fu ll capa city of th e mac hine .

2Ero

kg

0--.--C

Unit of calibration

To change the u nit of
calibration:

kg

lb

lb

kg

lb

0

--.--C

New uni t of calibration

T o change the flashing digit:

1--.--C

To go to the next digit:

ENTER

10-.--C

S122 User / Service I nstructions 38

5 Configuration Mode 5.3 F0 - weight calibration

ENTER

ENTER

ENTER

Repeat t o en te r the ca libratio n
weight.
For example, to enter 30 lb:

twice

3 times

ENTER

kg

030.000

lb

3 times

kg

030.000

lb

Place the calibration weight on
the platform. Press the enter
key.

030.000

39 S122 User / Service I nstructions

Remove the calib ration
weight.

. lb

0000

kg

lb

5.4 F1 - specification settings 5 Configuration Mode

ENTER

T

E

ZERO

See page 57

5.4 F1 - specification settings

● Ensure the hold function (F8) is set to hold 0.

5.4.1 Keyboard check

You can perform a keyboard check . If the correct code
appears when you press a key then you know that the key is
functioning correctly, see the table below. You cannot chec k

the

Function key Code Function key Code

PRESET TAR

key as it takes you to the ne xt ste p .

COUN

3E 27

3d 2b

37 1E

TARE

3b 1d

SAMPLE

2E 17

ADD

2d

RECALL

CLEAR ENTRY

TARGET

S122 User / Service I nstructions 40

5 Configuration Mode 5.4 F1 - specification settings

ENTER

ENTER

I

FI

t

se

To check a key press the key:

If there is an error
you will see ...

17

273027

Internal count

E63027

E73027

nternal count

more than 360,000

SEt

Internal count
less than 240, 000

41 S122 User / Service I nstructions

5.4 F1 - specification settings 5 Configuration Mode

ENTER

ENTER

Repeat until you have en tered
t

E

kg displayed

U00000

Unit options ar e:

digit 1 1= kg, 2= lb
digit 2 0= no 2nd unit
1= kg, 2= lb
digit 3 Must be set to 0
digit 4 0= kg display
1= g display
digit 5 0= lb display
1= lb, oz display
digit 6 Not used

T o change the flashing digit:

To go to the next digit:

Examples:

kg only 100xxx
lb only 200xxx
kg, lb units 120xxx
lb, kg units 210xxx

200000

lb primary unit

200000

secondary unit

S122 User / Service I nstructions 42

he required oiptions.

xample: 210010

21 = dual units lb and kg
digit 4 = kg displayed
digit 5 = lb, oz displayed

kg secondary unit

lb primary unit

not used

2100 0

Must be 0

lb, oz display ed

1

5 Configuration Mode 5.4 F1 - specification settings

ZERO

ENTER

ZERO

ENTER

ZERO

kg

C000 00

lb

Press and to
enter the required capacity:

Full capacity + 9d
max lb w
wghtx2.24)
60kgx20g 006018
150kgx50g 015045
300kgx100g 003009
130lbx0.05l b 013045
330lbx0.10l b 003309
660lbx0.20l b 066010

Press and to
enter the weight settings:

digit 1 = divisions (1, 2, or 5)
digit 2 = decimal places
(1, 2, or 3)
digits 3 - 6 = 0

ight=(max kg

130lb ca pacity

013045

d00000

5300 00

Divisions=0.05lb

kg

lb

kg

lb

kg

lb

43 S122 User / Service I nstructions

5.5 F2 - noise filter setting 5 Configuration Mode

twice

ENTER

ENTER

44

5.5 F2 - noise filter setting

The range of stability is from 01 to 15. E nte r a settin g
appropriate to the environment.

● The higher the value the quicker the machine reaches

stability bu t w eig hing is less ac c ur a t e.

● If the environment is unstable enter the value 15.

● If the environment is stable enter the value 05. This is the

default value.

● Ensure the hold function (F8) is set to hold 0.

F2

fiL 05

T o change the value:

fiL 06

F2

S122 User / Service I nstructions

5 Configuration Mode 5.6 F3 - zero display setting

3 times

ENTER
ENTER

5.6 F3 - zero display setting

MUST BE SET TO 0 AT LEGAL FOR TRADE SCALES.

● If the load cell gives unstable readings set to 5 which is

the maximum.

● If the load cell gives stable readings set to 0 which is the

minimum.

● Ensure the hold function (F8) is set to hold 0.

F3

2Ero0

Zero display setting

0 =

default zero di sp lay readi n g wit hin
1 division
2 = zero di sp lay readi n g wit hin
2 divisions

T o change the value:

3 = zero display reading within
3 divisions
4 = zero display reading within
4 divisions
5 = zero display reading within
5 divisions

2Ero1

F3

45 S122 User / Service I nstructions

5.7 F4 - checkweighing function 5 Configuration Mode

4 times

ENTER

ENTER

ENTER

low limit = 2lb

ENTER

46

5.7 F4 - checkweighing function

● Ensure the hold function (F8) is set to hold 0.

F4

kg

0--.--L

T o cancel the high/low limits and
alarm setting:

lb

5 times

ENTER

Press and
to enter the required low limit:

Low limit > 10 divi sions

S122 User / Service I nstructions

000.000

F4

002.000

0--.--H

kg

lb

kg

lb

kg

lb

5 Configuration Mode 5.7 F4 - checkweighing function

ENTER

high li mit = 2.5lb

ENTER

ENTER

ENTER

Press and to
enter the required high limit:

High limit ≥ low limit

002.500

kg

lb

kg

0- b

lb

Check-weighing alarm digit 1

0 = Stable, b
1 = Stable, b
stable or not and LCD on
2 = Whether stable or no t,
b

LCD indication

Press and to
enter the required alarm setti ng:

eeps and LCD on
eeps whether

eeps and LCD on

LOW

OK HIGH

Check-weighing alarm digit 2

0 = No b
1 = OK (over low limits and under
high limits), b
2 = Under or equal to low limit
(must be ov er 10d) and
over or equal to high limit, b

eeps

eeps

eeps

01 = Beep between targets

01b

F4

kg

lb

47 S122 User / Service I nstructions

5.8 F5 - print option 5 Configuration Mode

5 times

ENTER

ENTER

E

R

ENTER

E

R

48

5.8 F5 - print option

● Ensure the hold function (F8) is set to hold 0.

● To transmit to a computer short pins J1 and J3.

● To transmit to a serial printer short pins J2 and J4.

F5

Printer options are shown below:

0 Printing disabled.

1 Stable transmit for a PC.
2 Continuous printing for a PC.
3 Simple printing for serial printer. Press to print.

NTE

4 Full printing for ser ial printer. Press to print.

5 Stable printing (accumulation).
6 Full printing for EZ-2 printer. Press to print.

NTE

7 EZ-2 printer. Press to print.

S122 User / Service I nstructions

5 Configuration Mode 5.8 F5 - print option

7 times

ENTER

ENTER

T o change the printer setting:

Exampl e EZ-2 printer

Default baud rate

Display the setting required by
the EZ-2 printer:

3 times

Baud rate options are:
1200, 2400, 4800, 9600

New baud rate

F5

49 S122 User / Service I nstructions

5.8 F5 - print option 5 Configuration Mode

50

5.8.1 Printer outputs

The S122 can be connected to a computer running a suitable
application or a 40 column printer, see the typical outputs below.

rnP 1

PC stable transmit

When the weight is stable
press the key to tra ns m i t
each tran sa ct i on to th e PC .

ENTER

ENTERENTER

rnP 2

Continuous
transmission to PC

ST,NT,+ 1.000lb
ST,NT,+ 1.000lb
ST,NT,+ 2.002lb
ST,NT,+ 2.004lb
ST,NT,+ 0.000lb
ST,TR,+ 1.000lb
ST,NT,+ 0.990lb
ST,NT,+ 0.990lb
ST,NT,+ 1.000lb
ST,NT,+ 1.000lb

ST=Stable weight
NT=Gross weight
TR=Ne t weight in oper ation

TARE

UlbS,NT,+1.000lb
US,NT,+ 1.000lb
ST,NT,+ 1.000lb
ST,NT,+ 1.000lb
US,NT,+ 1.000lb
US,NT,+ 1.000lb
ST,NT,+ 0.890lb
ST,NT,+ 0.890lb
ST,NT,+ 1.000lb
ST,NT,+ 1.000lb

The weight is continuously transmitted to the PC.

S122 User / Service I nstructions

5 Configuration Mode 5.8 F5 - print option

rnP 3

Simple mode for serial printer

To transmit each transaction to the
printer:

ENTER

or

To transmit the total to
the printer:

ENTERENTER

ADD

S/N WT/lb
_ _ _ _ _ _ _ _

001 2.000
002 1.000

_ _ _ _ _ _ _ _
0002 3.000

rnP 4

Full mode for serial printer

To transmit each transa ction
to the printer:

ENTER

ADD

or

TICKET NO.0001
G 1.000lb
T 0.000lb
N 1 .0 00l b

TICKET NO.0002
G 2.000lb
T 0.000lb
N 2 .0 00l b

To transmit the total to
the printer:

ENTERENTER

TICKET NO.0003
G 2.000lb
T 1.000lb
N 2 .0 00l b

TOTAL NUMBER
OF TICKETS 0003
TOTAL

NET 4.000lb

51 S122 User / Service I nstructions

5.8 F5 - print option 5 Configuration Mode

52

rnP 5

Stable printing (accumulation)

To transmit each transaction
to the printer:

ENTER

ADD

or

To transmit the total to
the printer:

ENTERENTER

rnP 6

Full mode for EZ-2 printer

To tran smi t eac h tr ans ac ti on t o t he
printer:

ENTER

ADD

or

To transmit the total to
the printer:

ENTERENTER

S/N WT/lb
_ _ _ _ _ _ _ _

001 1.000
002 2.000
003 2.000
004 2.000
005 2.000

_ _ _ _ _ _ _ _
005 9.000

TICKET NO. 0001
G 1.000lb
T 0.000lb
10152 1.000lb
03

TICKET NO. 0002
G 1.000lb
T 0.000lb
10152 1.000lb
03

TICKET NO. 0003
G 2.000lb
T 0.000lb
N11 2.000lb
03

S122 User / Service I nstructions

5 Configuration Mode 5.8 F5 - print option

rnP 7

Stable tra nsmit to EZ-2 printer

To transm it eac h t ransactio n t o
the printer:

151123+ 1.000lb
151123+ 1.000lb
151123+ 0.000lb
151123+ 0.000lb
151123+ 2.000lb
151123+ 2.000lb

5.8.2 RS232 interface specification

I. Mode : EIA-RS023 2 C ’s UART signal
II. Format:

Baud rate Can select

1200, 2400, 4800, 9600 BPS

Data bit 8 bits
Parity bit None
Stop bit 1 bit
Code ASCII

Start bit

53 S122 User / Service I nstructions

Data bits

Stop bit

5.8 F5 - print option 5 Configuration Mode

54

5.8.3 Data format

Data format for stable and continuous transmission.

Head 1

(2 bytes)

OL Overload, under load
ST Display is stable NT Net mode
US Display is unstable GS Gross mode

Head 2

(2 bytes)

Data (8 bytes)

2D (HEX)= "-" (minus)
2E (HEX)= "." (decima l po int)

Unit (2 bytes)
kg =6B (HEX) ; 67 (HE X)

lb =6C (HEX) ; 62 (HEX)

Example 1: +0.876k g stable weight and net value

Example 2: -1.568lb unstable weight and net value

S122 User / Service I nstructions

5 Configuration Mode 5.9 F6 - exiting configuration mode

7 times

ENTER

ENTER

5.9 F6 - exiting configuration mode

See page 37 .

5.10 F7 - displaying the internal count

● Ensure the hold function (F8) is set to hold 0.

F7

273027

Internal count

F7

55 S122 User / Service I nstructions

5.11 F8 - setting the hold function 5 Configuration Mode

ENTER

ENTER

ENTER

56

5.11 F8 - setting the hold function

You can set up th e h old functi on so pressi n g the key
prints the displayed valu e. Yo u m ust a lso s et u p the c or rect

transmit baud rate for th e rec eivi ng de vice .

Hold 0

No hold function.

Hold 1

When the weight is continuously changing the scale
automatically holds the maximum value.

002.500

Pres s any key o ther than to clear the hold.

Hold 2

When the wei gh t beco m es stabl e the scale automatically

holds the displayed value. Press any key other than
clear the hold.

Hold 3

When the wei gh t beco m es stabl e the scale automatically
holds the dis pl ay ed va lu e. Th e hol d c lea rs wh en the w ei ght i s
removed and th e ma ch ine r etu rns to zer o w eight.

lb

to

S122 User / Service I nstructions

5 Configuration Mode 5.11 F8 - setting the hold function

ENTER

ENTER

F8

8 times

kg

ho1d-0

T o change the hold setting:

ho1d-3

lb

kg

lb

F8

57 S122 User / Service I nstructions

6.1 Power supply connections 6 Wiring Diagrams

'D' cell batteries

r

T o mainboard

58

6 Wiring Diagrams

Electrostatic se n si tive dev ice
Observe all precautions for handling electrostatic
discharge sensitive devices.

6.1 Power supply conn ections

Battery

selector

switch

AC Power

in socket

On/off

Switch

Green

Orange

Blue

Red

Black

Yellow

Brown

Note: All connections are soldered.

Internal

rechargeable

battery

Red

= 0.1µFCapacito

S122 User / Service I nstructions

Wiring Diagrams

59

p

i

n

6.2

6.2

6.2 Main board connections

Main board connections

S122 User / Service I nstructions

6.3 Load cell connections 6.3 Wiring Diagrams

60

Shield

6.3 Load cell connections

S122 User / Service I nstructions

7.1 Illustrated part lists 7.1 Parts Lists

61

14.5x20.5 in

17.3x23.6 in

14.5x20.5 in

17.3x23.6 in

14.5x20.5 in

17.3x23.6 in

Shroud

Load Bridge

7Parts Lists

7.1 Illustrated part lists

e

Ins

t

c

i

v

r

u

r

e

s

/

User

76103-986

c

t

i

ons

S122 User / Service I nstructions

7.2 Parts Lists 7.2 Additional parts

62

1140780136

Power adaptor - USA 110

7.2 Additional parts

Description Part number

Sealing screw kit SER/L120/0002
Ground spring SER/L120/0003

On/Off switch 1111001111
Battery select o r switc h 1111001221
Load cell connector - male 5-way 1240001051
Load cell connector - male 6-way 1240001061
Load cell connector - female - 5-way 12400 01050
Load cell connector - female - 6-way (approved) 1240001060
Keyboard KB4T1A 0A2000
Keyboard overlay 1220355122

S122 User / Service I nstructions

The address of your Salter Bre cknell center is

This document contains a general guide only of the product and shall not form part of any contract unless specifically agreed by Salter Brecknell Weighing in writing
in each case on the Order Acknowledgement. The specification of the products described herein may vary from time to time and may be altered without notice.

USA

Salter Brecknell Weighing Products USA
1000 Armstrong Drive
Fairmont
MN 56031

Toll Free:

800-637-0529

Phone:

507-238-8702

Fax:

507-238-8271

Email:

[e-mail]

Web site:

www.salterbrecknell.com

UK and Europe

Web site:

Salter Brecknell Weighing

Tel:

[phone]

Fax:

Email:

[phone]

[e-mail]

www.averyweigh-tronix.com

P.O. Box 9533

Smethwick

West Midlands

B66 2TE