VOXI User’s Guide
18
6.
Maintenance
The VOXI requires regular filter replacement and possibly lamp & sensor cleaning if used in
areas of high dust or condensation. The pump may also need service and the expected
replacement period is about 2 years.
6.1 Replacing Filters
If the external filter is dirty or clogged, remove it by unscrewing it from the inlet. Discard it and
replace it with a new water-trap filter. Dirty filters can be recognized by symptoms such as:
•
Visible filter discoloration
•
Visible moisture accumulation
•
Frequent pump stalls
We recommend filter replacement at least every month for instruments that are used regularly,
and more frequently, possibly daily, when used under very dusty or wet conditions.
IMPORTANT!
The VOXI should not be operated without a filter. Operation without a filter
may damage the instrument and shorten the life of the pump, sensor and PID lamp.
6.2 Removing/Cleaning/Replacing Lamp and Sensor
WARNING!
Replace lamp or sensor only in non-hazardous locations.
IMPORTANT!
Always perform a full calibration after removing lamp or sensor.
6.2.1 Accessing PID Sensor and Lamp
Loosen the lock screw and remove the cover. Pinch the buckles on each side of the assembly,
pull it out, and disconnect the wiring plugs. Remove the intake pipe (filter housing) from the
main body. Push the PID sensor module in towards the main body and lift it up and out.
Secondary Filter
(Inside Housing)
External Water
Trap Filter
Lock Screw
Disconnect
filter housing
from main
body
