KERN ALJ User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
email: [e-mail]
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating Manual
Analytical and precision balances
KERN ALJ/ALS/PLJ/PLS
Version 3.8
08/2013
GB
ALJ/ALS/PLJ/PLS-BA-e-1338

ALJ/ALS/PLJ/PLS-BA-e-1338
2
GB
KERN ALJ/ALS/PLJ/PLS
Version 3.8 08/2013
Operating Manual
Analytical and precision balances
Table of Contents
1 Technical Data ............................................................................................... 4
2 Explanation of graphical symbols.............................................................. 17
3 Basic Information (General)........................................................................ 17
3.1 Proper use................................................................................................................17
3.2 Improper Use............................................................................................................17
3.3 Warranty...................................................................................................................17
3.4 Monitoring of Test Resources...................................................................................17
4 Basic Safety Precautions............................................................................ 18
4.1 Pay attention to the instructions in the Operation Manual.........................................18
4.2 Personnel training.....................................................................................................18
5 Transportation & Storage............................................................................ 18
5.1 Testing upon acceptance..........................................................................................18
5.2 Packaging / return transport......................................................................................19
6 Unpacking, Setup and Commissioning ..................................................... 21
6.1 Installation Site, Location of Use...............................................................................21
6.2 Unpacking / placing ..................................................................................................21
6.2.1 Placing......................................................................................................................................22
6.2.2 Scope of delivery / serial accessories ...................................................................................... 24
6.3 Appliance overview...................................................................................................24
6.3.1 Front side of the balance.......................................................................................................... 24
6.3.2 Back and bottom side of the balance ....................................................................................... 25
6.4 Controls....................................................................................................................26
6.4.1 Overview of display .................................................................................................................. 26
6.4.2 Keyboard overview................................................................................................................... 26
6.5 Connect and switch-on power supply........................................................................27
6.6 Rechargeable battery operation (depends on model, see chp.1)..............................27
6.7 Connection of peripheral devices..............................................................................28
6.8 Initial Commissioning................................................................................................28
6.8.1 Stability display......................................................................................................................... 28
6.8.2 Balance zero display ................................................................................................................28
7 Adjustment................................................................................................... 28
7.1 Models with external weight (KERN ALS/PLS)..........................................................29
7.1.1 Adjustment with recommended adjustment weight (factory setting)........................................ 29
7.1.2 Adjustment with weights of other nominal values .................................................................... 30
7.2 Models with internal weight (KERN ALJ/PLJ)............................................................32
7.2.1 Adjustment models PLJ-M ....................................................................................................... 33
7.2.2 Overwrite internal adjustment weight ....................................................................................... 34
7.3 Verification................................................................................................................35

ALJ/ALS/PLJ/PLS-BA-e-1338 3
8 Basic Operation ........................................................................................... 36
8.1 Underfloor weighing..................................................................................................37
9 User menu.................................................................................................... 38
9.1 Weighing unit............................................................................................................43
9.2 Data output type.......................................................................................................44
9.3 Baud rate..................................................................................................................45
9.4 Auto Zero..................................................................................................................46
9.5 Filter .........................................................................................................................48
9.6 Standstill control display ...........................................................................................49
9.7 Setting the contrast of the display.............................................................................50
9.8 Display background illumination................................................................................51
9.9 Automatic switch- -by mode...................................52
10 User menu.................................................................................................... 53
10.1 Parts counting...........................................................................................................54
10.1.1 Switching over between quantity and weight display........................................................... 56
10.1.2 Automatic reference optimization.........................................................................................56
10.1.3 Numeric entering of the reference weight............................................................................57
10.2 Density determination (Hydrostatic weighing)...........................................................58
10.2.1 Density determination of solids............................................................................................ 58
10.2.2 Determining density of liquids.............................................................................................. 60
10.3 Adding function.........................................................................................................62
10.4 Checkweighing.........................................................................................................64
10.5 Percent determination...............................................................................................66
10.5.1 Entering the reference weight by weighing.......................................................................... 66
10.5.2 Numeric entering of the reference weight............................................................................67
10.6 Animal weighing function..........................................................................................68
10.7 Peak value function ..................................................................................................69
11 Data output RS 232C ................................................................................... 70
11.1 Technical Data..........................................................................................................70
11.2 Pin allocation of balance output plug.........................................................................70
11.3 Interface....................................................................................................................71
11.4 Data transfer.............................................................................................................71
11.5 Format for data transmission....................................................................................72
11.6 Remote control instructions.......................................................................................74
11.7 Printer mode.............................................................................................................74
12 Error messages............................................................................................ 76
13 Service, maintenance, disposal.................................................................. 76
13.1 Cleaning ...................................................................................................................76
13.2 Service, maintenance...............................................................................................76
13.3 Disposal....................................................................................................................76
14 Instant help................................................................................................... 77
15 Declaration of Conformity........................................................................... 78

ALJ/ALS/PLJ/PLS-BA-e-1338
4
1 Technical Data
KERN ALJ 160-4A ALJ 250-4A ALJ 310-4A
Weighing range (max) 160 g 250 g 310 g
Readability (d) 0.1 mg 0.1 mg 0.1 mg
Reproducibility 0.1 mg 0.1 mg 0.1 mg
Linearity ± 0.3 mg ± 0.3 mg ± 0.3 mg
Stabilization time (typical) 4 sec. 4 sec. 4 sec.
Minimum unit weight at
piece counting > 0.5 mg > 0.5 mg > 0.5 mg
Warm-up time 8 hours
Adjustment weight internal
Reference quantities at
piece counting 10, 25, 50, 100 freely selectable
Weighing Units ct, g, gn, lb, mo, oz, ozt,
tl (HK), tl (Singap. Malays), tl (Tw), pen
Electric Supply 24 V AC, 500mA
Operating temperature
Humidity of air max. 80 % (not condensing)
Housing (B x D x H) mm 210 x 340 x 330
Dimensions of windshield
(B x D x H) mm 160 x 140 x 205 (inside) 190 x 195 x 225 (outside)
Weighing plate (stainless
steel) Ø 80 mm
Weight kg (net) 6.5 kg
Interface RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1338 5
KERN ALJ 160-4AM
ALJ 250-4AM
ALJ 310-4AM
Weighing range (max) 160 g 250 g 310 g
Readability (d) 0.1 mg 0.1 mg 0.1 mg
Reproducibility 0.1 mg 0.1 mg 0.1 mg
Linearity ± 0.3 mg ± 0.3 mg ± 0.3 mg
Verification value (e) 1 mg 1 mg 1 mg
Verification class I I I
Minimum load (Min) 10 mg 10 mg 10 mg
Stabilization time (typical) 4 sec. 4 sec. 4 sec.
Minimum unit weight at
piece counting > 0.5 mg > 0.5 mg > 0,5 mg
Warm-up time 8 hours
Adjustment weight internal
Reference quantities at
piece counting 10, 25, 50, 100 freely selectable
Weighing Units ct, g, gn, lb, mo, oz, ozt,
tl (HK), tl (Singap. Malays), tl (Tw), pen
Electric Supply 24 V AC, 500 mA
Operating temperature
Humidity of air max. 80 % (not condensing)
Housing (B x D x H) mm 210 x 340 x 330
Dimensions of windshield
(B x D x H) mm 160 x 140 x 205 (inside) 190 x 195 x 225 (outside)
Weighing plate (stainless
steel) Ø 80 mm
Weight kg (net) 5.7 kg 6.7 kg 5.7 kg
Interface RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1338
6
KERN ALS 160-4A ALS 250-4A
Weighing range (max) 160 g 250 g
Readability (d) 0.1 mg 0.1 mg
Reproducibility 0.1 mg 0.1 mg
Linearity ± 0.3 mg ± 0.3 mg
Stabilization time (typical) 4 sec. 4 sec.
Minimum unit weight at
piece counting > 0.5 mg > 0.5 mg
Warm-up time 8 hours
Recommended adjustment weight,
not added (class) 150 g (E2) 200 g (E2)
Reference quantities at
piece counting 10, 25, 50, 100 freely selectable
Weighing Units ct, g, gn, lb, mo, oz, ozt,
tl (HK), tl (Singap. Malays), tl (Tw), pen
Electric Supply 24 V AC, 500 mA
Operating temperature
Humidity of air max. 80 % (not condensing)
Housing (B x D x H) mm 210 x 340 x 330
Dimensions of windshield
(B x D x H) mm 160 x 140 x 205 (inside) 190 x 195 x 225 (outside)
Weighing plate (stainless steel) Ø 80 mm
Weight kg (net) 5.7 kg
Interface RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1338 7
KERN PLJ 310-3F PLJ 420-3F PLJ 720-3A
Weighing range (max) 310 g 420 g 720 g
Readability (d) 0.001 g 0.001 g 0.001 g
Reproducibility 0.001 g 0.001 g 0.001 g
Linearity ± 0.003 g ± 0.003 g ± 0.002 g
Stabilization time (typical) 3 sec. 2 sec. 2 sec.
Minimum unit weight at
piece counting > 5 mg > 5 mg > 5 mg
Warm-up time 4 hours 4 hours 4 hours
Adjustment weight internal
Reference quantities at
piece counting 10, 25, 50, 100 freely selectable
Weighing Units
ct, g, gn, lb, mo, oz, ozt,
tl (HK), tl (Singap. Malays), tl (Tw), pen
Electric Supply 230V/50 Hz
(Euro) 9V DC
230V/50 Hz
(Euro) 9V DC
230V/50 Hz
(Euro) 24V AC
Operating temperature + 5° C / + 35° C
Humidity of air max. 80 % (not condensing)
Underfloor weighing
-
-
Clevis type
eyelet, standard
Housing (B x D x H) mm 210 x 340 x 160
Windshield mm
inside Ø 150, 60 high
outside Ø 160, 70 high yes yes yes
Weighing plate
(stainless steel) Ø 11 cm Ø 11 cm Ø 11 cm
Weight kg (net) 4 kg 4.5 kg
Interface RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1338
8
KERN PLJ 1200-3A
PLJ 1200-3DA
PLJ 3100-2F
Weighing range (max) 1200 g 720 g/1200 g
3100 g
Readability (d) 0.001 g 0.001 g/0.01 g
0.01 g
Reproducibility 0.001 g 0.001 g/0,01 g
0.01 g
Linearity ± 0.003 g
± 0.003 g/0.03 g
± 0.03 g
Stabilization time (typical) 2 sec. 2 sec. 2 sec.
Minimum unit weight at
piece counting > 5 mg > 5 mg > 50 mg
Warm-up time 8 hours 4 hours 4 hours
Adjustment weight internal
Reference quantities at
piece counting 10, 25, 50, 100 freely selectable
Weighing Units
ct, g, gn, lb, mo, oz, ozt,
tl (HK), tl (Singap. Malays), tl (Tw), pen
Electric Supply 230V/50 Hz (Euro)24 V AC 230V/50 Hz
(Euro)9 V DC
Operating temperature
Humidity of air max. 80 % (not condensing)
Underfloor weighing
Clevis type eyelet,
standard
Clevis type eyelet,
standard -
Housing (B x D x H) mm 210 x 340 x 160
Windshield mm
inside Ø 150, 60 high
outside Ø 160, 70 high yes yes no
Weighing plate
(stainless steel) Ø 11 cm Ø 11 cm Ø 16 cm
Weight kg (net) 4.5 kg
Interface RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1338 9
KERN PLJ 4200-2F
PLJ 6200-2A
PLJ 6200-2DA
Weighing range (max) 4200 g 6200 g 4200 g /6200 g
Readability (d) 0.01 g 0.01 g 0.01 g /0.1 g
Reproducibility 0.02 g 0.01 g 0.01 g /0.1 g
Linearity ± 0.04 g ± 0.03 g ± 0.03 g / 0.3 g
Stabilization time (typical) 2 sec. 2 sec. 2 sec.
Minimum unit weight at
piece counting > 50 mg > 50 mg > 50 mg
Warm-up time 4 hours
Adjustment weight internal
Reference quantities at
piece counting 10, 25, 50, 100, freely selectable
Weighing Units
ct, g, gn, lb, mo, oz, ozt,
tl (HK), tl (Singap. Malays), tl (Tw), pen
Electric Supply 230V/50 Hz
(Euro)9V DC 230V/50 Hz (Euro)24V AC
Operating temperature
Humidity of air max. 80 % (not condensing)
Underfloor weighing -
Clevis type
eyelet, standard
Clevis type
eyelet, standard
Housing (B x D x H) mm
210 x 340 x 100
210 x 340 x
100
210 x 340 x 100
Windshield mm
inside Ø 150, 60 high
outside Ø 160, 70 high no no no
Weighing plate
(stainless steel) Ø 16 cm Ø 16 cm Ø 16 cm
Weight kg (net) 4.5 kg 5 kg 5.0 kg
Interface RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1338
10
KERN PLJ 300-3FM PLJ 720-3AM
Weighing range (max) 320 g 720 g
Readability (d) 0.001 g 0.001 g
Reproducibility 0.001 g 0.001 g
Linearity ± 0.003 g ± 0.002 g
Verification value (e) 10 mg 10 mg
Verification class II II
Minimum load (Min) 20 mg 20 mg
Stabilization time (typical) 3 sec. 2 sec.
Minimum unit weight at
piece counting > 5 mg > 50 mg
Warm-up time 4 hours
Adjustment weight internal
Reference quantities at
piece counting 10, 25, 50, 100, freely selectable
Weighing Units ct, g
Electric Supply 220V 240 V AC, 50 Hz
Operating temperature
Humidity of air max. 80 % (not condensing)
Underfloor weighing Clevis type eyelet, standard
Housing (B x D x H) mm 210 x 340 x 100
Windshield mm
inside Ø 150, 60 high
outside Ø 160, 70 high yes
Weighing plate
(stainless steel) Ø 11 cm Ø 11 cm
Weight kg (net) 4 kg 4.5 kg
Interface RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1338 11
KERN PLJ 3000-2FM PLJ 6200-2AM
Weighing range (max) 3200 g 6200 g
Readability (d) 0.01 g 0.01 g
Reproducibility 0.01 g 0.01 g
Linearity ± 0.03 g ± 0.02 g
Verification value (e) 100 mg 100 mg
Verification class II II
Minimum load (Min) 20 mg 50 mg
Stabilization time (typical) 3 sec. 2 sec.
Minimum unit weight at
piece counting > 50 mg > 50 mg
Warm-up time 4 hours
Adjustment weight internal
Reference quantities at
piece counting 10, 25, 50, 100, freely selectable
Weighing Units ct, g
Electric Supply 220V 240 V AC, 50 Hz
Operating temperature
Humidity of air max. 80 % (not condensing)
Housing (B x D x H) mm 210 x 340 x 100
Windshield mm
inside Ø 150, 60 high
outside Ø 160, 70 high yes
Weighing plate
(stainless steel) Ø 16 cm Ø 16 cm
Weight kg (net) 4.0 kg 4.5 kg
Interface RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1338
12
KERN PLS 310-3F PLS 420-3F PLS 510-3A
Weighing range (max) 310 g 420 g 510 g
Readability (d) 0.001 g 0.001 g 0.001 g
Reproducibility 0.002 g 0.002 g 0.001 g
Linearity ± 0.003 g ± 0.004 g ± 0.002 g
Stabilization time (typical) 3 sec. 3 sec. 2 sec.
Minimum unit weight at
piece counting > 5 mg > 5 mg > 5 mg
Warm-up time 4 hours 4 hours 4 hours
Recommended adjustment
weight, not added (class) 300 g (E2) 400 g (E2) 500 g (E2)
Reference quantities at
piece counting 10, 25, 50, 100, freely selectable
Weighing Units
ct, g, gn, lb, mo, oz, ozt,
tl (HK), tl (Singap. Malays), tl (Tw), pen
Electric Supply 230V/50 Hz (Euro)9V DC 230V/50 Hz
(Euro)24V AC
Operating temperature Operation period 30 h
Loading time 10 h -
Operating temperature
Humidity of air max. 80 % (not condensing)
Underfloor weighing Clevis type eyelet, standard
Housing (B x D x H) mm 210 x 340 x 160
Windshield mm
inside Ø 150, 60 high
outside Ø 160, 70 high
Weighing plate
(stainless steel) Ø 11 cm
Weight kg (net) 4 kg 4.5 kg
Interface RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1338 13
KERN PLS 720-3A PLS 1200-3A
PLS 1200-3DA
Weighing range (max) 720 g 1200 g 720 g /1,200 g
Readability (d) 0.001 g 0.001 g 0.001 g /0.01 g
Reproducibility 0.001 g 0.001 g 0.001 g /0.01 g
Linearity ± 0.002 g ± 0.003 g
± 0.002 g / 0.02 g
Stabilization time (typical) 2 sec. 2 sec. 2 sec.
Minimum unit weight at
piece counting > 5 mg > 5 mg > 5 mg
Warm-up time 4 hours 8 hours 4 hours
Recommended adjustment
weight, not added (class) 600 g (E2) 1 kg (E2) 1 kg (E2)
Reference quantities at
piece counting 10, 25, 50, 100, freely selectable
Weighing Units
ct, g, gn, lb, mo, oz, ozt,
tl (HK), tl (Singap. Malays), tl (Tw), pen
Electric Supply 230V/50 Hz (Euro)24V AC
Rechargeable battery
-
- -
Operating temperature
Humidity of air max. 80 % (not condensing)
Underfloor weighing
Clevis type eyelet, standard
Housing (B x D x H) mm
210 x 340 x 160
210 x 340 x 160
210 x 340 x 160
Windshield mm
inside Ø 150, 60 high
outside Ø 160, 70 high yes yes yes
Weighing plate
(stainless steel) Ø 11 cm Ø 11 cm Ø 11 cm
Weight kg (net) 4.5 kg 4.5 kg 4.5 kg
Interface RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1338
14
KERN PLS 3100-2F PLS 4200-2F
PLS 4200-2A
Weighing range (max) 3100 g 4200 g 4200 g
Readability (d) 0.01 g 0.01 g 0.01 g
Reproducibility 0.02 g 0.02 g 0.01 g
Linearity ± 0.03 g ± 0.04 g ± 0.02 g
Stabilization time (typical) 3 sec. 3 sec. 2 sec.
Minimum unit weight at
piece counting > 50 mg > 50 mg > 50 mg
Warm-up time 4 hours 4 hours 4 hours
Recommended adjustment
weight, not added (class) 3 kg (E2) 4 kg (E2) 4 kg (E2)
Reference quantities at
piece counting 10, 25, 50, 100 freely selectable
Weighing Units
ct, g, gn, lb, mo, oz, ozt,
tl (HK), tl (Singap. Malays), tl (Tw), pen
Electric Supply 230V/50 Hz (Euro)9V DC 230V/50 Hz
(Euro)24V AC
Rechargeable battery Operation period 30 h
Loading time 10 h no
Operating temperature
Humidity of air max. 80 % (not condensing)
Underfloor weighing Clevis type eyelet, standard
Housing (B x D x H) mm 210 x 340 x 160
210 x 340 x 100
210 x 340 x 100
Windshield mm
inside Ø 150, 60 high
outside Ø 160, 70 high no no no
Weighing plate
(stainless steel) Ø 16 cm Ø 16 cm Ø 16 cm
Weight kg (net) 4 kg 4 kg 4.5 kg
Interface RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1338 15
KERN PLS 6200-2A PLS 6200-2DA
Weighing range (max) 6200 g 4200 g/6200 g
Readability (d) 0.01 g 0.01 g/0.1 g
Reproducibility 0.01 g 0.01 g/0.1 g
Linearity ± 0.03 g ± 0.02 g / 0.2 g
Stabilization time (typical) 2 sec. 2 sec.
Minimum unit weight at
piece counting > 50 mg > 50 mg
Warm-up time 4 hours 4 hours
Recommended adjustment
weight, not added (class) 5 kg (E2) 5 kg (E2)
Reference quantities at
piece counting 10, 25, 50, 100, freely selectable
Weighing Units
ct, g, gn, lb, mo, oz, ozt,
tl (HK), tl (Singap. Malays), tl (Tw), pen
Electric Supply 230V/50 Hz (Euro)
24V AC 230V/50 Hz (Euro) 9V DC
Operating temperature
Humidity of air max. 80 % (not condensing)
Underfloor weighing Clevis type eyelet, standard
Housing (B x D x H) mm 210 x 340 x 100 210 x 340 x 100
Windshield mm no no
Weighing plate
(stainless steel) Ø 16 cm Ø 16 cm
Weight kg (net) 4.5 kg 4.5 kg
Interface RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1338
16
KERN PLS 8000-2A
PLS 20000-1F
Weighing range (max) 8200 g 20 kg
Readability (d) 0.01 g 0.1 g
Reproducibility 0.01 g 0.1 g
Linearity ± 0.03 g ± 0.4 g
Stabilization time (typical) 2 sec. 3 sec.
Minimum unit weight at
piece counting > 50 mg > 500 mg
Warm-up time 4 Stunden 4 hours
Recommended adjustment
weight, not added (class) 5 kg (E2) 20 kg (E2)
Reference quantities at
piece counting 10, 25, 50, 100, freely selectable
Weighing Units
ct, g, gn, lb, mo, oz, ozt,
tl (HK), tl (Singap. Malays), tl (Tw), pen
Electric Supply 230V/50 Hz (Euro)
24V AC 230V/50 Hz (Euro) 9V DC
Operating temperature
Humidity of air max. 80 % (not condensing)
Underfloor weighing Clevis type eyelet, standard
Housing (B x D x H) mm 210 x 340 x 100 210 x 340 x 100
Windshield mm no no
Weighing plate
(stainless steel) Ø 16 cm 200 x 175 mm
Weight kg (net) 4.75 kg 4 kg
Interface RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1338 17
2 Explanation of graphical symbols
Note: follow the directions included
in the attached document or
Follow the Operating Instructions
3 Basic Information (General)
3.1 Proper use
The balance you purchased is intended to determine the weighing value of material
-
material to be weighed is manually and carefully placed in the centre of the weighing
plate. As soon as a stable weighing value is reached the weighing value can be read.
3.2 Improper Use
Do not use balance for dynamic weighing. In the event that small quantities are
removed or added to the material to be weighed, incorrect weighing results can be
e. (Example: Slowly
draining fluids from a container on the balance.)
Do not leave permanent load on the weighing plate. This may damage the measuring
system. Impacts and overloading exceeding the stated maximum load (max) of the
balance, minus a possibly existing tare load, must be strictly avoided. Balance may
be damage by this. Never operate balance in explosive environment. The serial
version is not explosion protected.
The structure of the balance may not be modified. This may lead to incorrect
weighing results, safety-related faults and destruction of the balance.
The balance may only be used according to the described conditions. Other areas of
use must be released by KERN in writing.
3.3 Warranty
Warranty claims shall be voided in case
Our conditions in the operation manual are ignored
The appliance is used outside the described uses
The appliance is modified or opened
Mechanical damage or damage by media, liquids, natural wear and tear
The appliance is improperly set up or incorrectly electrically connected
The measuring system is overloaded
3.4 Monitoring of Test Resources
In the framework of quality assurance the measuring-related properties of the
balance and, if applicable, the testing weight, must be checked regularly. The
responsible user must define a suitable interval as well as type and scope of this test.
www.kern-sohn.com with regard to
the monitoring of balance test substances and the test weights required for this. In
calibrated (return to the national standard) fast and at moderate cost.

ALJ/ALS/PLJ/PLS-BA-e-1338
18
4 Basic Safety Precautions
4.1 Pay attention to the instructions in the Operation Manual
Carefully read this operation manual before setup and
commissioning, even if you are already familiar with KERN
balances.
Versions in other languages are non-binding translations.
The only binding version is the original document in German.
4.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
5 Transportation & Storage
5.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.

ALJ/ALS/PLJ/PLS-BA-e-1338 19
5.2 Packaging / return transport
Keep all parts of the original packaging for a possibly required
return.
Only use original packaging for returning.
Prior to dispatch disconnect all cables and remove loose/mobile
parts.
Reattach possibly supplied transport securing devices.
Secure all parts such as the glass wind screen, the weighing
platform, power unit etc. against shifting and damage.

ALJ/ALS/PLJ/PLS-BA-e-1338
20
Models ALJ/ALS: