GDS Corp GASMAX II + GDS-IR, Руководство по эксплуатации и обслуживанию

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GASMAX II + GDS-IR Operation & Maintenance Manual, Revision 1.1
Page 23
6 MAINTENANCE
NORMAL MAINTENANCE
Normal maintenance for the GASMAX II + GDS-IR primarily involves periodic inspection of the unit
followed by zeroing the GDS-IR and then calibrating the GDS-IR combination. GDS Corp
recommends calibration at least every three to six months, or more often if temperature extremes,
vibration, the presence of incompatible gases or other environmental factors may exist. Calibration is an
ideal time to inspect the unit for clogged or wet sensors, dirty hydrophobic filters, cracked or damaged
enclosures and water incursion inside conduit or junction boxes.
GDS-IR SENSOR MAINTENANCE
To properly inspect the GDS-IR, remove the sensor cover and inspect the hydrophobic filter as shown
below. The cover unscrews counterclockwise when viewed from below.
Inspect the hydrophobic filter for any buildup of dirt or dust. If the filter requires cleaning, carefully
unscrew the setscrew and slide the filter down and away from the GDS-IR. Clean the filter using
compressed air. Reinstall the filter, setscrew and sensor cover.
If the sensor indicates a fault condition, remove the sensor cover and filter as shown below. Using two
small Allen wrenches, remove the waveguide assembly to access the upper and lower sapphire windows.
Use a cotton swab and small amount of alcohol to clean any moisture or debris that may have
accumulated on the window, then re-assemble the unit. If the fault persists, contact GDS Corp.
Figure 6-1: GDS-IR Disassembly & Cleaning
1) Unscrew sensor
cover 2) Remove set screw and
slide hydrophobic filter
down 3) Using two small Allen
wrenches to screw the
two pieces inwards,
remove the center
waveguide 4) Clean the upper and
lower windows using
cotton swabs and alcohol