Ion Science Tiger - Manual (Page 38)

TIGER MANUAL Ion Science Ltd
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Maintenance
Press Enter again and the gas and concentration for Span 1 (previously set up in TIGER PC) are displayed
along with a 15 second countdown.
Attach the ‘Span 1’ gas using the Calibration Adaptor (861476)
supplied in the Accessory Box (A-861267) (see ’Accessories’) and
press Enter to start the Span 1 countdown. At the end of the count
down a tick '!' will appear, indicating that the Span 1 has been
accepted. For two-point calibration, press Enter and the calibration
is complete.
For three-point calibration, press Enter to display the gas and
concentration for Span 2 (previously set up in TIGER PC) along
with a 15 second countdown.
Attach the ‘Span 2’ gas and
press Enter to start the Span 2 countdown. At the end of the count
down a tick '!' will appear, indicating that the Span 2 has been
accepted.
Press Enter again and the calibration is complete.
Inlet Nozzle
Should the Inlet Nozzle become cantaminated or damaged,
replacement Inlet Nozzles may be obtained from your distributor or from Ion Science Ltd. Please note that a
small O-Ring at the base of the Inlet Nozzle ensures the Inlet Nozzle is sealed, this can bee seen in the
transparent Filter Clamp when the Inlet Nozzle is removed.
The Inlet Nozzle can be removed for cleaning or replacement by
unscrewing it from the transparent Filter Clamp.
Refit the Inlet Nozzle using fingers only, avoid using tools as this may
damage the filter housing. To ensure the assembly is sealed, place a
finger over the Inlet Nozzle to block the flow while the instrument is
running. A flow alarm should occur if sealed correctly.
PTFE Filter Disc (861221)
The Filter Disc should be changed after every 100 hours of use. This
frequency should be increased for dusty or moisture laden
environments or whenever the filter appears ‘dirty’ when viewed through the transparent upper surface of the
Filter Clamp. Filter Disc changing should be conducted in a suitably clean environment, with clean hands
and equipment to avoid contamination of the new Filter Disc.
To change the Filter Disc, unscrew the Filter Housing Cap, lift off the Filter Clamp and O-Ring and lift the
Filter Disc from the Instrument Body. Carefully place a new Filter Disc into the Instrument Body. (Under no
circumstances should a Filter Disc be used once it has been removed.) Replace the Filter Clamp,
ensuring the locating lugs are correctly positioned in the cut-outs in the Instrument Body and that the O-Ring
is correctly seated. Replace the Filter Housing Cap. Do not over-tighten.