4�2 Mechanical Installation - Honeywell Midas User Manual

Below are some considerations when installing the
Midas Gas Detector:
®
1. Mount the detector on a surface that is flat,
firm and suitable for its size and weight.
2. Use the drill template supplied to drill the holes
for the fixings.
3. Use fasteners appropriate for the surface
being mounted to.
4. Ensure the head size of fastener used will not
snag the terminal PCB 6-12 mm (.25 in - .5 in).
5. Consider the conduit/cable weight and its
stress on the installation.
6. Position the detector so that it can be easily
accessed.
7. Position the detector so that it is at a suitable
height (normally eye level) for the display to
be clearly seen.
8. Take into consideration the space required
to remove the detector's cover and locking/
unlocking the sensor cartridge locking clips.
Minimum recommended spacing between
multiple Midas
9. Take into consideration the space required for
sample inlet and exhaust tubing (for remote
monitoring), and for the inlet filter (for local
monitoring).
10. Take into consideration the space required for
cable or conduit access.
units is 82 mm (3.23 in).
®
Midas
4.2 Mechanical Installation
The following steps and diagrams show how to separate
the mounting bracket assembly from the main chassis
and mount it on a vertical flat surface.
1. Unscrew the thumbscrew located on the front
panel.
2. Remove the cover by pulling it forwards off the
main chassis. Be sure to remove the internal
packing card securing the pump. Failure to
remove this packing will result in damage to
the Midas
3. Unscrew the two retaining screws located at
the bottom front of the chassis.
4. Holding the mounting bracket assembly with
one hand use the other to carefully pull the
main chassis forward to disconnect it from the
mounting bracket assembly.
5. Using the drill template provided drill two holes
58.50 mm vertically apart for 2 x round head M4
fixing screws.
6. Partially screw the fixings into the mounting
surface.
7. Place the mounting bracket assembly over
the screws so they pass through the mounting
holes and then slide down to locate in the slots.
8. Tighten the screws to secure the mounting
bracket assembly.
4-4
Gas Detector
®
unit. (See Diagram 4-2)
®