STATUS SCIENTIFIC CONTROLS
Installation, Commissioning & Routine Gas Testing
FGD10B Pellistor Gas Detector
TD18/008
Issue:
10
Change Note:
1904
Page 10
Cable entries
The cable entry threads are 20mm
, ½” or ¾” NPT female.
The FGD10B enclosure is manufactured from die cast aluminium. Therefore,
the use of glands, conduit fittings and blanks made from brass should be
avoided because if moisture is present, bi-metallic corrosion may occur due
to the chemical reaction between the two materials.
Glands and fittings plated with nickel, tin or zinc will provide improved
protection but in harsh environments the use of stainless steel is
recommended.
When connecting the cores inside the unit it is beneficial to use pointed-nose
pliers to carefully guide the cable cores from the cable entries at the rear of
the enclosure towards the PCB mounted terminal connections situated near
to the middle of the enclosure.
3.1.
Mounting and terminal access
The FGD10B should be mounted and secured using the mounting holes on
the main unit.
Figures 2 and 3 shows details of the FGD10B terminal connections
– these
can be accessed as follows:-.
1. Switch OFF the supply to the FGD10B.
2. Release the locking screw located near the lip of the enclosure
cover by rotating clockwise.
3. Remove the enclosure front cover by rotating it several times in
an anti-clockwise direction.
4. The terminals can now be accessed.
Locking Screw
