65-2640RK-03 M2A Transmitter Operator’s Manual
15
Figure 6: Outline & Mounting Dimensions, Detector Junction Box
3. Install 3/16 inch I.D. flexible polyurethane tubing to the fitting at the bottom of the calibration adapter and
route it to an accessible area that is close to the M2A junction box. See the “Chapter 9: Parts List” on
page 50 for available tubing.
Ø3.65
3/4 Conduit Hub
.38
2.70
Combustible
Gas
Detector
Calibration
Adapter
1.13
9.25 Max
5.25
Rubber
Spacer,
3X
