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Table 8.4 ICA4H (4 to 20 mA)
Electrical and Environmental
Parameter
Supply voltage Range
Operating Current
Operating Temperature Range
Storage Temperature Range
Reverse polarity Protection
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
Bridge Excitation
Bridge Impedance
Bridge Sensitivity
Output load
Bandwidth
'Zero' adjustment
'Span' adjustment
Linearity
Temperature stability
'Zero' Temperature Stability
'Span' Temperature Stability
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
Mantracourt Electronics Limited – ICA User Manual
Minimum
Typical
13
24
-
8
-40
-
-40
-
-30
-
Minimum
Typical
4.90
5
350
1000
0.5
2.5
-
-
DC
-
-
±2
-
±8
-
0.02
-
0.0004
-
0.002
Maximum
Units
28
volts
-
mA
85
85
-
volts
Maximum
Units
5.10
volts
5000
ohms
150
mV/V
900
ohms
1000
-
%FR
-
%FR
-
%FR
0.0015
+/-%FR/°C
0.0051
+/-%FR/°C
Notes
Note 1
°C
°C
Notes
Note 1
Note 2
Hz
At 2.5 mV/V
At 2.5 mV/V
24
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