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With the Filter Disc, Filter Disc O Ring and upper O Ring correctly fitted the Cub
has an IP rating of IP65.
With the Filter Disc and O Rings removed, the IP rating drops to IP64.
Water Ingress
If the portable Cub has been immersed or splashed with water, take the MiniPID 2 Sensor out to dry
and replace the Filter Disc as described previously.
Lamp Cleaning and Electrode Stack Replacement
The Cub is a sensitive detector. Internal components must be handled with
clean hands and clean tools. The Cub Lamp is fragile. Handle with great care.
Never touch the window and do not drop.
When to Clean or Replace the Lamp
The Cub PID uses an ultraviolet light source ionizing 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 Cub 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 Cub with a damaged lamp.
Unrivaled Gas
Detection.
Hold the Cub upright as shown opposite.
To change the Filter Disc (2), unscrew the Sensor Cover (1), and
use gloved hands to remove the O Ring (3) and Filter Disc (2).
Carefully place a new Filter Disc (2) and then a new O Ring (3) in
into the Sensor Cover.
Under no circumstances should a Filter Disc or O Ring be used
once it has been removed.
Make sure that the upper O Ring (5) has remained in position.
Then ensuring, the Filter Disc (2) and O Ring (3) are correctly
positioned, screw the Sensor Cover (1) back onto the Instrument
Body (6). Do not over-tighten.
Page 36 of 49
Cub Instrument User Manual V2.5
ionscience.com/usa
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