ION Tiger Select, Руководство пользователя

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TIGER Select Instrument User Manual V3.2
Unrivalled Gas Detect ion.
Page 62 of 73
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PTFE Filter Disc changing should be conducted in a suitably clean environment, with clean hands and
equipment to avoid contamination of the new PTFE Filter Disc.
To change the PTFE Filter Disc (see the Inlet Probe Assembly ):
1. Unscrew the Filter Housing Cap and lift off the Filter Clamp and O-ring.
2. Lift the PTFE Filter Disc from the Instrument Body. Carefully place a new PTFE Filter Disc into
the Instrument Body.
Under no circumstances should a PTFE Filter Disc be used once it has been removed.
3. Replace the Filter Clamp, ensuring that the O-ring is correctly seated.
4. Replace the Filter Housing Cap. Do not over-tighten.
Probe Seal
The Probe Seal (see the Inlet Probe Assembly ) should be inspected and replaced when required.
Water Ingress
If the instrument has been immersed or splashed with water, take the PID 2 Sensor out to dry (see
below) and replace the PTFE Filter Disc as described previously.
Lamp Cleaning and Electrode Stack Replacement
The TIGER Select is a sensitive detector. Internal components must be handled
with clean hands and clean tools. The Lamp is fragile. Handle with great care.
Never touch the window and do not drop.
When to Clean or Replace the Lamp
The TIGER Select MiniPID uses an ultraviolet light source ionising VOC gases as they pass across the
Lamp window. This process may result in a fine layer of contamination on the detector window that
must be removed on a regular basis.
•
In normal use the Lamp should be cleaned after every 100 hours (based on 30 ppm for 100
hours). If the Tiger Select is used in heavily gas contaminated environments, the Lamp
should be cleaned more often.
•
Please note that some esters, amines and halogenated compounds may accelerate window
fouling; in these cases cleaning may be required after every 20 hours of use.
•
Cleaning frequency will also depend upon alarm levels set and prevailing environmental
conditions.
•
Damaged Lamps must be replaced immediately. Do not use a Tiger Select with a damaged
Lamp.
When to Replace the Electrode Stack
When using your Tiger Select in conditions of high ambient humidity, it may show unexpected and
increasing readings. This is due to dust or other small particles within the detector becoming
hydrated which causes these particles to conduct a signal between the electrodes.