Applications; Example 1: Load Cell Working With Tension / Compression; Adjustment - HBM RM4220 Bedienungsanleitung

RM4220
6

Applications

6.1 Example 1:
Load cell working with tension / compression
Loadcell
· Resistance:
· Full bridge:
· Sensitivity:
Configuration (- -3 mV/V for - -10 V (4 mA) und 3 mV/V for 10 V (20 mA))
· Switch INV1 synchronize to  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
· Zero point configuration W2 onto position 2 (Zero =  0.035 mV/V)
· 3 Hz Bandwidth (factory setting)

Adjustment

· Release the transducer.
· Adjust PT2 to 0 V (12 mA) with a voltmeter (ammeter). If the zero point is
unstable, then replace the zero point configuration W2 onto position 3 and
adjust PT2 again.
· Load the transducer with the favored final value.
· Adjust PT1 to 10 V (20 mA) with a voltmeter (ammeter).
· Verify the zero point configuration once again.
· The measurement chain is now adjusted and ready for operation.
A1091--21 de/en
350 W
6--wire technique
3 mV/V
G =
sensitivity ⋅ excitation voltage
10
37
HBM