Mantracourt Electronics Limited
– ICA User Manual
25
Table 8.5 ICA5S (2-wire 4-20 mA)
Electrical and Environmental
Parameter
Minimum
Typical
Maximum
Units
Notes
Supply voltage Range
7.5
24
28
volts
Operating Temperature Range
-40
-
85
°C
Storage Temperature Range
-40
-
85
°C
Reverse polarity Protection
-30
-
-
volts
Measurement
Parameter
Minimum
Typical
Maximum
Units
Notes
Bridge Excitation
1.05
1.11
1.16
volts
Note 1
Bridge Impedance
350
1000
5000
ohms
Bridge Sensitivity
0.5
2.5
55
mV/V
Note 2
Output load
-
-
800
ohms
Note 3
Bandwidth
DC
-
1000
Hz
‘Zero’ adjustment
-
±2
-
%FR
Note 4
‘Span’ adjustment
-
±8
-
%FR
Linearity
-
0.02
-
%FR
Temperature stability
‘Zero’ Temperature Stability
-
0.001
0.005
+/-%FR/°C
At 2.5 mV/V
‘Span’ Temperature Stability
-
0.007
0.014
+/-%FR/°C
At 2.5 mV/V
FR=Full Range (16 mA)
Note 1: 1000 ohm load cell – Typically 0.55 V for 350 ohm cell
Note 2: Set by calibration resistor. Load cells with less than 1 mV/V sensitivity are not recommended – drift and noise
performance will suffer.
Note 3: 24 V supply minimum – includes loop wiring resistance
Note 4: 1000 ohms load cell – change R
offs
to suit other load cell impedances.
Note: Recommended bridge impedance is 1,000 ohms
Note: The voltage between either of the power supply connections and the load cell shield should not exceed 50 V.
Any leakage will be greater than 10 M ohms.
Figure 8.5 ICA5S Pad and Potentiometer Positions
