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Chapter 2: Description
65-2658XL-CH4-4 M2A-XL Transmitter Operator’s Manual
Chapter 2: Description
Overview
This chapter describes the components of the M2A-XL transmitter. The transmitter is a 4 - 20 mA
type detector head. It consists of the IR CH
4
detector, calibration adapter/splash guard, terminal
PCB, the M2A-XL junction box, and the detector junction box. The two-junction-box
configuration is intended for situations where the detector needs to be installed at an inaccessible
location. The detector junction box can be installed at the inaccessible location and the M2A-XL
junction box can be installed in a more readily accessible area.
External Description
This section describes the junction boxes and all external components of the M2A-XL transmitter.
Figure 1: M2A-XL External Components
Terminal
Strip
3/4 NPT Conduit Hub
Detector
Junction Box
IR CH4 Detector
Calibration Adapter/
Splash Guard
M2A-XL
Junction Box
3/4 NPT
Conduit Hub
W indow
Mounting Hole (2x)
3/4 NPT Conduit Hub
Magnetic
W and
