HBM VKIA405 Notice De Montage page 15

VKIA405
(Example: Reference load cell +80 kg)
Fig. 7.1: Example: Platform weighing machine with 4 load cells with 12.5 t
test load
• For the load cell affected (e.g. load cell 3), the necessary resistances are
activated by opening the relevant "0-W-resistor". Tip: Divide the wire and
bend it to one side
• Repeat this procedure for all the load cells apart from the 'reference load
cell' (in our example, this is load cell 4).
50 kg
0,2
2 10
20 100
80
Fig. 7.2: Off-center load compensation for 350 W load cells
(For 700 Ω load cells, the established value must be doubled.)
A2448-1.1 en/de/fr
Load cell 1
12 600 kg
Test load
12.5 t
Load cell 3
12 530 kg
100 kg 125 kg
0.5t
1 t 1,25 t
5t
10 t 12,5 t
Example:
Test load: 12,5 t
Off-center load error:
80 kg
1 2
20
200
Off-center load error in kg
Load cell 2
12 550 kg
Test load
150 kg 200 kg
1,5 t 2 t
15 t 20 t
3 4
30 40
300 400
Reference load cell 4
12 450 kg
300 kg
250 kg
2,5 t
3 t
25 t
30 t
Resistance
of your
choice
0.39+0.82+1.5+3Ω
0.39+1.5+3Ω
1.5+3Ω
0.39+0.82+3Ω
0.82+3Ω
0.39+3Ω
3Ω
0.39+0.82+1.5Ω
0.82+1.5Ω
0.39+1.5Ω
1.5Ω
0.39+0.82Ω
0.82Ω
0.39Ω
−
5
50
500
15
HBM