Mantracourt Electronics Limited
– ICA User Manual
24
Table 8.4 ICA4H (4 to 20 mA)
Electrical and Environmental
Parameter
Minimum
Typical
Maximum
Units
Notes
Supply voltage Range
13
24
28
volts
Operating Current
-
8
-
mA
Note 1
Operating Temperature Range
-40
-
85
°C
Storage Temperature Range
-40
-
85
°C
Reverse polarity Protection
-30
-
-
volts
Note 1: Not including excitation current and output current.
e.g. when connected to a 350 ohm load cell:-
Total current = Operating current (8 mA) + Excitation current (5/350 = 14 mA) + Output current (20 mA
FS) = 42 mA FS (typical).
Measurement
Parameter
Minimum
Typical
Maximum
Units
Notes
Bridge Excitation
4.90
5
5.10
volts
Bridge Impedance
350
1000
5000
ohms
Bridge Sensitivity
0.5
2.5
150
mV/V
Note 1
Output load
-
-
900
ohms
Note 2
Bandwidth
DC
-
1000
Hz
‘Zero’ adjustment
-
±2
-
%FR
‘Span’ adjustment
-
±8
-
%FR
Linearity
-
0.02
-
%FR
Temperature stability
‘Zero’ Temperature Stability
-
0.0004
0.0015
+/-%FR/°C
At 2.5 mV/V
‘Span’ Temperature Stability
-
0.002
0.0051
+/-%FR/°C
At 2.5 mV/V
FR=Full Range (16 mA)
Note 1: Set by calibration resistor
Note 2: 24 V minimum supply/sink mode – includes loop wiring resistance
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 8.4 ICA4H Pad and Potentiometer Positions
