53
SPM Flex Gas Detector
Checking the pump
The detector will display an instrument fault in the event of a pump malfunction�
See “Instrument Fault/Maintenance Fault/Information Codes” on page 50�
Verifying optic system response
Using the optional optics test card, perform the optics verification test�
From the Test menu, select the Optics verification option and follow the
instructions on the display� If the “Optics verification success!” message is
displayed, the optic system is functioning normally� If the “Optics verification
failed! Please remove card and put Chemcassette back” message is displayed,
return the detector the Honeywell Analytics for service�
Replacing internal filters
Figure 30.
Bypass lter bracket
Bypass lter
Bypass lter screw
Area of detail
Manifold
Dust lter/acid scrubber
locking ring
Dust lter/acid scrubber assembly
Removing the internal lters
The dust filter and acid scrubber are attached to a single manifold� Press and
hold the locking ring on the fitting firmly in the direction of the arrow and lift the
filter assembly out together� Replace the filters in the manifold and reattach the
assembly by gently pressing it into the push fittings until it locks�
To free the bypass filter, remove the bypass filter screw and pull out the bracket-
filter assembly� Disconnect the black bypass tube� Attach the tube to the new
filter-bracket assembly, insert it in the manifold, and tighten the bypass filter
screw�
Perform a leak test after every filter replacement (see “Checking for system
leaks” on page 60)�
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