IMC CANSAS - Page 475

DCB8 475
imc CANSAS Users Manual - Doc. Version 1.9 - 05.12.2014© 2014 imc Meßsysteme GmbH
The 350 variant (1/4 bridge completion) does not support current measurement with internal shunt.
Alternatively an external shunt can be used. For the DSUB-15 version an appropriate shunt plug is
available (ACC/DSUB(M)-I2).
Bridge measurement
Parameter
Value typ.
min. / max.
Remarks
Bridge measurement modes
full-, half bridge
quarter bridge
5 V bridge excitation voltage only
Bridge input ranges
1000 mV/V, 500 mV/V, 200 mV/V,
100 mV/V
... 0.5 mV/V
... 1 mV/V
... 2 mV/V
bridge excitation voltage:
10 V
5 V
2.5 V
Input impedance
20 M
9.5 M
1 %
differential (only Power ON)
Power OFF
Gain uncertainty
0.02 %
0.05 %
of reading
drift
+20 ppm/K T
a
+80 ppm/K T
a
T
a
=|T
a
–25°C| ambient temperature T
a
Offset
0.01 %
0.02 %
of input range after automatic bridge
balancing
drift
+16 nV/V/K T
a
+0.2 µV/V/K T
a
T
a
=|T
a
–25°C| ambient temperature T
a
Bridge excitation voltage
10 V
5 V
2.5 V
0.5 %
not with quarter bridge measure
min. bridge impedance
max. bridge impedance
120 , 10 mH full bridge
60 , 5 mH half bridge
5 k
Internal quarter-bridge
completion
120
optional 350
Cable resistance for bridges
(without return line)
<6
<12
<24
10 V excitation 120
5 V excitation 120
2,5 V excitation 120