XZR400 Series User’s Manual
Michell Instruments
79
APPENDIX E
Appendix E
Process Pressure Correction - (Optional)
When the process gas pressure is out of the atmospheric pressure range, the process
pressure correction is required to guarantee the optimal ef
fi
ciency of the analyzer.
The input signal is a 4-20 mA analog signal from an external pressure transmitter
installed by the user at the outlet side of the process.
The following screen is used to con
fi
gure the scale range:
Pressure correction
5.6
Start of scale
End of scale
0.0 bar abs
2.0 bar abs
Figure 54
Pressure Correction Screen
An input signal of 4 mA corresponds to the low scale set value.
A input signal of 20 mA corresponds to the high scale set value.
E.1
Process Pressure Correction Input Connections
The 4-20 mA pressure transmitter signals should be connected to the DB15 socket on
the rear panel of the analyzer.
1 2
9 10 11 12 13 14 15
3 4 5 6 7 8
Contact No
Function
5
(+) 4-20 mA / analog input of process pressure
6
(+) 4-20 mA / analog input of process pressure
