Example 1: Load Cell Working In Compression - Hbm Rm4220 Bedienungsanleitung

38
Remark
For 0/10 V (4/20 mA) output:
· Switch INV1 synchronize to position 0/10 V (4/20 mA)
· Switch INV2 and INV3 synchronize to 6--wire technique
· Switch INV4 synchronize to the excitation voltage 10 V DC
· Amplifier switch W1 onto position 2
· Zero point configuration W2 onto position 7 (zero =  4.0 mV/V)
· Load the transducer with the favoured final value and adjust thereupon vol-
tage final value V
· Verify V = 5 V (I
out
just PT1 in the way, that it applies V
· Release the transducer, adjust PT2 to 5 V (12 mA).
· Verify the zero point configuration once again.
· The measurement chain is now adjusted and ready for operation.
6.2 Example 1:
Load cell working in compression
Loadcell
· Resistance:
· Full bridge:
· Sensitivity:
Configuration (0 mV/V for 0 V (4 mA) und 3 mV/V for 10 V (20 mA))
· Switch INV1 synchronize to 0/10 V DC (4/20 mA)
· Switch INV2 und INV3 synchronize to 6--wire technique
· Switch INV4 synchronize to excitation voltage 10 V DC
· Amplifier switch W1 onto position 3
HBM
G =
sensitivity ⋅ excitation voltage
(current final value I
m
12 mA) for the zero point, if this is not the case, ad-
out =
350 W
6--wire technique
3 mV/V
G =
sensitivity ⋅ excitation voltage
5
).
m
= 5 V (I
out out =
10
RM4220
12 mA).
A1091--21 de/en