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TVOC MANUAL
8
Maintenance
The amount of humidity and quality of the ambient air will directly affect the time between servicing.
WARNING:
Leaving contamination on the lamp window can cause irrecoverable damage to the PID Lamp.
The Electrode Stack
7.
seen the Stack it must be replaced.
Reassembly:
8.
Place the clean PID Lamp into the PID Cell avoiding finger contact with the Window.
9.
Refit the Electrode Stack with the electrical pin holes and electrode wire racing down.
Metal Spring Cover.
10.
Refit the
Electronic
11.
Ensure the
Pins
PID Cell
of the
the 12 o'clock position
before inserting the
Cell
.
The PID Cell should insert
into the connectors easily,
if significant resistance is
felt, remove the cell and
check alignment before
reinserting.
WARNING:
Irreparable damage will be caused by forcing the PID into the Sensor Holder if not correctly aligned.
NOTE: Always calibrate TVOC after servicing is carried out.
Fuse rupture and replacement
TVOC has a 125 mA BASEEFA certified fuse to provide instrinsically safe protection when the unit is installed
in hazardous areas.
This fuse may ruptures for example due to over voltage or a current surge, if this is the case replacement is
different depending upon the application being Intrinsically Safe or not.
For Intrinsically Safe (IS) applications the unit must be inspected and have the fuse replaced by Ion Science
Ltd or an Ion Science Approved Service Centre. The intrinsically safe rating is not maintained if the fuse is
simply replaced.
For Non Intrinsically Safe (Non IS) applications the fuse may be replaced by an equivalent rated fuse and
operation tested by qualified engineering personnel.
Lamp Warranty Statement
Please note: The standard warranty period for a 10.6 PID lamp is one year, providing that the default duty
cycle for lamp pulsing is used (55 seconds lamp off, 5 seconds lamp on.)
should be inspected for visible signs of contamination, if contamination can be
(The Electrode Stack
are at
PID
Electronic Pins
Page 22 of 28
art number 1/EA-02)
p
Ion Science Ltd
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