Ion Science Tiger Select - Manual (Page 13)

TIGER MANUAL Ion Science Ltd
Page 13 of 20
Unrivalled Detection. www.ionscience.com
Calibration
Calibration routine
For best results place the Tiger Select instrument and any Benzene pre-filter tubes in the calibration
environment. Switch the Tiger Select on and leave it running in the calibration environment for 30 minutes.
This ensures the instrument and the tubes acclimatize to the environment and ensure any trace benzene is
purged from the instrument after previous testing.
Tiger Select relies on a two point calibration to create its calibration factor. Both Zero and SPAN are set with
a single stage. The Zero is set using initial slug of clean gas passing through a pre-filter tube, the span is
set later. Please note the accuracy of the calibration will be affected by ambient temperature.
1. Select the settings soft key:
2. Choose the calibration option
3. Choose the Tube calibration
4. Use the up and down keys to adjust the
temperature on screen to the ambient.
Use a separate temperature measuring
device if necessary.
Note: At this point the pump will stop
running
5. Remove both ends of the pre filter tube using the tube opener tool.
This is done by inserting the tube in to the tube opener and twisting
the tube. A slight angle may be required to cut the glass.
Should the tube break up to the shoulder it must not be used as this
will damage the seals within tube holder when inserted.
6. Unscrew the cap of the tube holder, insert the tube in to the tube
holder cap ensuring the black arrow on the tube is pointing towards the
open end (towards the instrument). Screw the tube holder cap and the
tube on to the instrument.
6a. If using a flow regulator, remove the grub screw from the end of the tube holder cap
before starting the calibration, this allows excess gas top escape.
WARNING: failing to allow excess pressure to escape could damage the
Tiger Select pump.
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