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Chapter 3: Installation & Startup
M2A-XL Transmitter Operator’s Manual
9. Re-install the control PCB (and ribbon cable if necessary). Be sure the ribbon cable is routed
down below the control PCB so it will not be damaged by the cover when it is screwed back
on.
10. Secure the junction box cover to the junction box.
11. Make controller, device, and relay connections as appropriate. If shielded cable is used for the
PWR/SIG connections, connect the cable shield’s drain wire to an available chassis ground at
the gas monitoring controller, recording device, or programmable controller.
Start Up
Introducing Incoming Power
1. Complete the installation procedures described earlier in this manual.
2. Verify that all wiring connections are correct and secure.
3. Turn on the incoming power.
4. If necessary, turn on the controller or other monitoring device that is connected to the M2A-
XL.
5. The OLED display will indicate the firmware version when the M2A-XL is first powered up
and will then count down a one minute warm-up period before normal operation begins.
During normal operation, the display will indicate the target gas and current gas reading.
Verify that the display is indicating the target gas and current gas reading after the warm-up
period is complete and normal operation begins.
NOTE:
For all gases except ClO
2
, allow the M2A-XL’s detector to warm up for 15
minutes before you continue with the next section, “Adjusting the Fresh Air
Reading.”
For ClO
2
, allow the M2A-XL’s detector to warm up for 2-3 hours before you
continue with the next section, “Adjusting the Fresh Air Reading.”
METHANE
0 %LEL
