KERN ALJ 160-4A 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 3.5
10/2011
GB
ALJ/ALS/PLJ/PLS-BA-e-1135

ALJ/ALS/PLJ/PLS-BA-e-1135
2
GB KERN
ALJ/ALS/PLJ/PLS
Version 3.510/2011
Operating Manual
Analytical and precision balances
Table of Contents
1Technical Data ............................................................................................... 4
2Explanation of graphical symbols.............................................................. 13
3Basic Information (General)........................................................................ 13
3.1 Proper use................................................................................................................13
3.2 Improper Use............................................................................................................13
3.3 Warranty...................................................................................................................13
3.4 Monitoring of Test Resources...................................................................................13
4Basic Safety Precautions............................................................................ 14
4.1 Pay attention to the instructions in the Operation Manual.........................................14
4.2 Personnel training.....................................................................................................14
5Transportation & Storage............................................................................ 14
5.1 Testing upon acceptance..........................................................................................14
5.2 Packaging / return transport .....................................................................................14
6Unpacking, Setup and Commissioning ..................................................... 15
6.1 Installation Site, Location of Use...............................................................................15
6.2 Unpacking / erection.................................................................................................16
6.2.1 Placing...................................................................................................................................... 16
6.2.2 Scope of delivery / serial accessories....................................................................................... 18
6.3 Appliance overview...................................................................................................18
6.3.1 Front side of the balance.......................................................................................................... 18
6.3.2 Back and bottom side of the balance ....................................................................................... 19
6.4 Controls....................................................................................................................20
6.4.1 Overview of display................................................................................................................... 20
6.4.2 Keyboard overview ................................................................................................................... 20
6.5 Connect and switch-on power supply........................................................................21
6.6 Rechargeable battery operation (depends on model, see chp.1)..............................21
6.7 Connection of peripheral devices..............................................................................22
6.8 Initial Commissioning................................................................................................22
6.8.1 Stability display......................................................................................................................... 22
6.8.2 Balance zero display................................................................................................................. 22
7Adjustment ................................................................................................... 22
7.1 Models with external weight (KERN ALS/PLS)..........................................................23
7.1.1 Adjustment with recommended adjustment weight (factory setting)........................................ 23
7.1.2 Adjustment with weights of other nominal values..................................................................... 24
7.2 Models with internal weight (KERN ALJ/PLJ)............................................................26
7.2.1 Overwrite internal adjustment weight........................................................................................ 28
7.3 Verification................................................................................................................29
8Basic Operation........................................................................................... 31
8.1 Underfloor weighing..................................................................................................32
9User menu.................................................................................................... 33
9.1 Weighing unit............................................................................................................36

ALJ/ALS/PLJ/PLS-BA-e-1135 3
9.2 Data output type .......................................................................................................37
9.3 Baud rate..................................................................................................................38
9.4 Auto Zero..................................................................................................................39
9.5 Filter .........................................................................................................................41
9.6 Standstill control display ...........................................................................................42
9.7 Setting the contrast of the display.............................................................................43
9.8 Display background illumination................................................................................45
9.9 Automatic switch-off function „AUTO OFF“ in stand-by mode...................................46
10 User menu.................................................................................................... 47
10.1 Parts counting...........................................................................................................48
10.1.1 Switching over between quantity and weight display............................................................ 50
10.1.2 Automatic reference optimization......................................................................................... 50
10.1.3 Numeric entering of the reference weight............................................................................ 51
10.2 Density determination (Hydrostatic weighing)...........................................................52
10.2.1 Density determination of solids ............................................................................................ 52
10.2.2 Determining density of liquids .............................................................................................. 54
10.3 Adding function.........................................................................................................56
10.4 Checkweighing .........................................................................................................58
10.5 Percent determination...............................................................................................60
10.5.1 Entering the reference weight by weighing........................................................................... 60
10.5.2 Numeric entering of the reference weight............................................................................ 61
10.6 Animal weighing function..........................................................................................62
10.7 Peak value function ..................................................................................................64
11 Data output RS 232C ................................................................................... 65
11.1 Technical Data..........................................................................................................65
11.2 Pin allocation of balance output plug ........................................................................65
11.3 Interface ...................................................................................................................66
11.4 Data transfer.............................................................................................................66
11.5 Format for data transmission....................................................................................67
11.6 Remote control instructions ......................................................................................69
11.7 Printer mode.............................................................................................................69
12 Error messages............................................................................................ 72
13 Service, maintenance, disposal.................................................................. 73
13.1 Cleaning ...................................................................................................................73
13.2 Service, maintenance ...............................................................................................73
13.3 Disposal....................................................................................................................73
14 Instant help................................................................................................... 74
15 Declaration of Conformity........................................................................... 75

ALJ/ALS/PLJ/PLS-BA-e-1135
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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 + 5° C …. + 35° C
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-1135 5
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, 500mA
Operating temperature + 5° C …. + 35° C
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-1135
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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 2 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

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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 + 5° C …. + 35° C
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-1135
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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 + 5° C …. + 35° C
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

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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 2 hours 2 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 -
Humidity of air + 5° C …. + 35° C
Underfloor weighing max. 80 % (not condensing)
Housing (B x D x H) mm Clevis type eyelet, standard
Windshield mm
inside Ø 150, 60 high
outside Ø 160, 70 high 210 x 340 x 160
Weighing plate
(stainless steel)
Weight kg (net)
inside Ø 150, 60 high
outside Ø 160, 70 high
Interface Ø 11 cm
Weighing range (max) 4 kg 4.5 kg
Readability (d) RS 232C

ALJ/ALS/PLJ/PLS-BA-e-1135
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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 + 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 160 210 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