10
•
Chapter 2: Description
65-2658XL-CH4-4 M2A-XL Transmitter Operator’s Manual
Magnetic Wand
The magnetic wand is a short plastic rod with a magnet in one end. It is used to actuate the
magnetic control switches on the control PCB while the junction box cover is still installed so that
non-intrusive calibration can be performed.
Internal Description
This section describes the internal components of the M2A-XL. The internal components of the
M2A-XL include the terminal PCB which provides for all the wiring connections to the M2A-XL
and the control PCB which displays the gas reading and has the control buttons.
Figure 2: M2A-XL Internal Components
N
O
Control PCB
RK I INSTRU MENTS
M2A-XL Junction Box
Terminal PCB
M2A-XL T RANSMITTER
3/4 NPT Conduit Opening, Plugged
3/4 NPT Conduit
Opening for Wire Entry
