ABB PFCL 201, Руководство пользователя

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F
V
Tare
F
R
T
γ
β
α
T
γ
φ
Figure 13. Inclined mounting
2.6 The Electrical Circuit
The electrical circuit of the load cell is shown in the diagram below.
(signal)
Secondary
circuit
Primary
circuit
C
D
A
B
T
0.5 A/330 Hz
R
1
R
2
Secondary circuit
(signal)
(supply current)
Figure 14. Load cell circuit diagram
The load cell is supplied with a 0.5 A, 330 Hz alternating current. The secondary signal is calibrated
for the correct sensitivity with a voltage divider R
1
- R
2
, and temperature compensation is provided
by thermistors T.
All impedances on the secondary side are relatively low. The output impedance is typically 9-12 Ω ,
which helps to suppress interference.
Pressductor PillowBlock Load Cells, Vertical Measuring PFCL 201, User Manual
2 Description
3BSE023881R0101 en Rev H 17