2.3.2.2 Current Outputs; 2.3.2.3 Relay Contacts - Michell Instruments Optidew User Manual

INSTALLATION

2.3.2.2 Current Outputs

The rightmost four of the pins on this connector are used for mA outputs.
See section 3.2 for information on configuring the analog outputs
Pin Label
mA1
GND
mA2
GND

2.3.2.3 Relay Contacts

There are two sets of relay contacts available via the output connector:
Process Alarm (Relay 1)
This relay changes state to indicate that the process variable has exceeded the alarm
set point value. See section 3.2 for details on how to configure the process alarm trip
criteria. This alarm can also be used to give an early indication that the Optics require
cleaning.
System Alarm (Relay 2)
This relay changes state to indicate a fault has occurred which requires operator
intervention. See section 4.6 for detailed information on faults.
10
Figure 11 Analog output connector
Channel 1 Current Output
Channel 1 Ground
Channel 2 Current Output
Channel 2 Ground
Relay contact connector
Figure 12
Optidew User's Manual
Description
97551 Issue 1, February 2018