Output Wiring Connections; Table 2 Terminal Marks; Table 3 Minimum Cable Requirements, Power Connectors; Table 4 Wire Numbers, Hc Dew-Point Version - Michell Instruments Condumax II Installation Operation & Maintenance

Condumax II Sampling System -
NEC Compatible IOM Manual
Wiring connections, for power to heater circuit and heated regulator are made onto
terminals within the Power Circuits conduit box.
Terminals are marked:
NOTE: A ground/earth stud is provided in the base of the enclosure. This
must be used to earth bond the Sampling System.
A local power isolator switch MUST BE provided on the Power Circuit to the Condumax
II Hydrocarbon Dew-Point Analyzer for maintenance or servicing. Note: This switch
only isolates power to the analyser NOT any other circuits.
Minimum Cable Requirements
Power Cable
2.3

Output Wiring Connections

Two analog 4-20 mA outputs and a Modbus RS485 digital interface are available.
Connections are made onto wires from the Outputs conduit.
Wires are marked:
Wire No.
Michell Instruments
Terminal No.
1
4
Table 2
3 core, 0.75mm
Table 3
Minimum cable requirements, power connectors
HC Dew-Point Version
Output
1 Modbus RS485 digital comms Earth
2 Modbus RS485 digital comms A
3 Modbus RS485 digital comms B
4 Pressure measurement current - mA2
5 Pressure measurement current + mA2
6 Hydrocarbon dew-point measurement current - mA1
7 Hydrocarbon dew-point measurement current +mA1
Table 4 Wire Numbers, HC Dew-Point Version
Power Connection
Line Voltage
Neutral
Ground / Earth
Terminal marks
conductor area (6A)
2
INSTALLATION
7