IMC CANSAS - Page 508

508 General Technical Specs
imc CANSAS Users Manual - Doc. Version 1.9 - 05.12.2014© 2014 imc Meßsysteme GmbH
Voltage measurement
Parameter
Value typ.
min. / max.
Remarks
Voltage input ranges
50 V, 20 V, 10 V, 5 V, 2 V,
1 V... 5 mV
Input configuration
DC, differential
Overvoltage protection
80 V
permanent, channel to chassis
Input impedance
1 M
20 M
differential
< 10 V range
10 V range
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 temp. T
a
Offset uncertainty
0.02 %
0.05 %
0.06 %
percentage of range, in specified ranges:
> 50 mV range
50 mV range
Drift
60 µV/K T
a
0.06 µV/K T
a
100 µV/K T
a
0.3 µV/K T
a
> 10 V
10 V
T
a
=|T
a
-25°C|; ambient temp. T
a
Common mode rejection ratio
ranges 60 V... 20 V
10 V... 50 mV
20 mV... 5 mV
62 dB
92 dB
120 dB
>46 dB
>84 dB
>100 dB
common mode test voltage:
50 V
10 V
10 V
Noise
0.4 µV
rms
14 nV/ Hz
(RTI) bandwidth 0.1 Hz to 220 Hz
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).
Current measurement
Parameter
Value typ.
min. / max.
Remarks
Input ranges
50 mA, 20 mA, 10 mA, ,.., 1 mA
shunt:
120 internally (only 120 variant) or
50 shunt in terminal plug
Over load protection
60 mA
permanent
Input configuration
single-ended
differential
120 internal resistor
50 in shunt plug
Gain uncertainty
0.02 %
0.06%
0.1%
of reading
plus uncertainty of 50 shunt
Drift
+20 ppm/K T
a
+95 ppm/K T
a
T
a
=|T
a
-25°C|; ambient temp. T
a
Offset uncertainty
0.02 %
0.05 %
of range
Drift
0.05 nA/K T
a
0.5 nA/K T
a
T
a
=|T
a
-25°C|; ambient temp. T
a