User manual
7        PBS/PBJ-BA-e-1314 
1  Technical data 
KERN  PBJ 420-3M  PBJ 620-3M  PBJ 1020-3 
Readability (d)  0.001 g  0.001 g  0.001 g 
Weighing range (max)  420 g  620 g  1020 g 
Minimum load (Min) 
0.02 g 
0.1 g 
- 
Verification value (e)  0.01 g  0.01 g   - 
Verification class  II  I  - 
Reproducibility  0.001 g  0.001 g  0.001 g 
Linearity  ± 0.002 g  ± 0.002 g  ± 0.003 g 
Stabilization time 
2.5 sec. 
2.5 sec. 
2.5 sec. 
Warm-up time  4 h  4 h  8 h 
Adjustment weight  internal 
Weighing units  
(calibrated appliances) 
g, kg, pcs, % 
Smallest part weight for 
piece counting 
1 mg 
Reference quantities at  
piece counting
5, 10, 20, 50 100, 200 
Weighing plate, stainless 
steel 
108 x 105 mm 
Dimensions caisse 
 (l x L x h) [mm] 
209 x 322 x 78 
Dimensions wind screen 
[mm] 
interior 180 x 193 x 87 
exterior 202 x 228 x 103 
Net weight (kg)  3.7 kg 
Permitted environmental 
condition 
+10° C to +30° C 
Humidity of air  max. 80 % relative (not condensing) 
Interface  RS-232 
Underfloor weighing device 
Hooks 
AC adapter (Primary)   AC 100 -240 V, 400 mA 50/60Hz 
Rated electric power supply  12 V, 1 A 
Pollution Degree  2 
Overvoltage Category  Category II 
Altitude 
Up to 2000 m 
Installation Site  device may only be used indoors 










