IMC CANSAS - Page 469

CI8 469
imc CANSAS Users Manual - Doc. Version 1.9 - 05.12.2014© 2014 imc Meßsysteme GmbH
General
Parameter
Value typ.
min. / max.
Remarks
Input coupling
DC
Input configuration
differential, isolated
galvanically isolated to System-GND
(case, CHASSIS)
Input impedance
10 M
1 M
50
voltage mode (range ±2 V),
temperature mode
voltage mode (range ±5 V)
current mode (shunt-plug)
Input current
operating conditions
on overvoltage condition
1 nA
1 mA
|V
in
| >5 V on ranges < 5 V
or device powered-down
Voltage measurement
Parameter
Value typ.
min. / max.
Remarks
Input ranges
20 mV, 50 mV, 100 mV,
200 mV, 500 mV, 1 V, 2 V,
5 V, 10 V, 20 V, 60 V
Gain uncertainty
<0.025%
<0.05%
of the measured value, at 25°C
Gain drift
6 ppm/K
50 ppm/K
ranges ±2 V
ranges ±5 V
over full temperature
range
Offset uncertainty
15 µV
or
4LSB
range 100 mV
range >100 mV
Offset drift
2.5 ppm/K
over full temperature range
Non-linearity
<40 ppm
<60 ppm
range ±10 V
Input voltage noise
7.2 µV
rms
36 µV
pkpk
range ±20 mV
sampling rate 1 kHz,
R
source
= 0 Ω
IMR (isolation mode
rejection)
>145 dB (50 Hz)
>70 dB (50 Hz)
range ±2 V
range ±5 V
R
source
= 0 Ω
Channel isolation
>1 GΩ, <40 pF
>1 GΩ, <10 pF
channel-to-ground / protection ground
channel-to-channel
Channel isolation (crosstalk)
channel-to-channel
>165 dB (50 Hz)
>92 dB (50 Hz)
range ±2 V
range ±5 V
R
source
100 Ω
Current measurement with shunt plug
Parameter
Value typ.
min. / max.
Remarks
Current input ranges
10 mA, 20 mA
Shunt impedance
50 Ω
Gain uncertainty
<0.07%
<0.15%
with shunt-plug
Offset uncertainty
15 µV
or
4LSB
range 100 mV
range >100 mV
Offset drift
2.5 ppm/K
over full temperature range