KERN PBJ-N, Service Manual

Page: 53 / 67

53 PBJ_N-SH-e-1810.docx
- If the error is large, perform PCAL (calibration of the built-in weight).
For information, refer to the section on calibration of the built-in weight in the instruction
manual.
21.4 Linearity
-
Select menu “ E-CAL “ and calibration the span using the calibration weight.
-
Load the weight as shown in “ table 1 “ in turn and finally unload and take a reading.
- Obtain the average error of each measurement. ( error ) = ( reading values ) - ( actual
weight ) - ( average of unloaded reading values )
- Operation is normal if the error is less than the specification value.
- If the error is large, perform Writing in regular linear coefficients
21.5 Tilt error
-
Load the weight as shown in “ table 1 “ and press the -->O/T<--
- Insert a 1mm thick board under the two feet on the front side of the balance and take a
B ) ( error ) = ( B ) - ( A )
- If the error is large, perform Adjustment of tilt errors.
TYPE
PBJ 620-3NM PBJ 4200-2NM PBJ 6200-2NM PBJ 8200-1NM
CAPACITY [g]
620 4200 6200 8200
Readability [mg] 1 10 10 100
Repeatability(Rx,Ry)
weight
[mg] 2 20 20 200
[g] 300 2000 3000 4000
Corner load
error
weight
[mg] ±5 ±30 ±50 ±200
[g] 200 1000 2000 2000
Linearity
weight
[mg] ±2 ±20 ±20 ±100
[g] 100
200
400
600
620 1000
2000
3000
4000
4200 1000
2000
4000
6000
6200 2000
4000
6000
8000
8200
Built-in
Calibration(*1)
weight
[mg] ±5 ±30 ±50 ±200
[g] 600 4000 6000 8000
Tilt error
weight
[mg] ±30 ±300 ±300 ±3000
[g] 250 4000 4000 4000
Table 1 Adjustment Specification