Ion Science TVOC - Manual (Page 23)

TVOC MANUAL Ion Science Ltd
Page 23 of 32
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Maintenance
The humidity of the air and contaminants may affect the time required between servicing.
Warning:
7.
The Electrode Stack should be inspected for visible signs of contamination, if contamination can be
seen the Stack it must be replaced. ( part number 1/EA-02)
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 contacts facing down.
10. Refit the metal spring cover.
11. Ensure the electronic
pins of the PID sensor are
at the 12 o’clock position
before inserting the PID
sensor.
The PID sensor 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 housing 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 intrinsically safe protection when the unit is installed
in hazardous areas.
This fuse may rupture 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 (IS) or not.
For 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-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 is set to 1 minute of greater.
Electronic pins
Diagram 19