Ion Science Tiger - Manual (Page 24)

TIGER MANUAL Ion Science Ltd
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Tiger PC software
Tiger Select
Please refer to the TIGER Select User Manual.
Zeroing
This function allows either an assumed constant zero or for the zero to be tracked compensating for the shift
in the zero of the PID lamp during operation. The function may be enabled or disabled by ticking or un-
ticking the box. Constant or tracked zero is selected by use of the radio buttons associated with the icons.
There are various options for zeroing a TIGER or TIGER Select. The symbols below are found on the
configuration screen of TIGER PC.
Zero at switch on
When selected, the TIGER will automatically
set its zero reading based on ambient air.
When deselected the instrument will use its
calibration zero.
Fixed zero
When selected, TIGER uses the fixed
calibration Zero. If used in conjunction with
the ‘Zero at switch on’ feature the instrument
will zero at switch on and then remain at that
level.
Zero at switch
on
Fixed zero Zero tracking
Zero tracking
When selected, the Zero level will move negative if a cleaner ambient air is detected. This ensures 0.0
ppm is displayed in clean air and ensures sub ppb levels are always detected.
Clock
Select 24 or 12 hour format using the radial buttons. Set the time and date and tick the box on the right to
set the time on your TIGER. Alternatively, tick the lower box to synchronise your TIGER with the time on
your computer.
Lamp
Enables the selection of different lamp types you may have purchased to use with your instrument. Ensure
that the lamp selected is the same as that fitted in your TIGER. If not, select the correct lamp from the
options provided.
IMPORTANT
If you have purchased the instrument with the MiniPID Lamp (Argon)11.7eV (LA4SM700), there are a
number of things related to applications that you must take into consideration before using the lamp.
1.
It is important for the lamps to be stored in their desiccated vials in cool conditions (15-25°C).
2.
The lamps should not be used in:
-
Chemically severe environments, i.e. those containing significant concentrations of acids and
strong solvents such as dichloromethane.
- Conditions of condensing humidity; always pass dry cool air through the
instrument before storage. For long storage periods, remove the lamp and
return it to the desiccated vial.
- Physically severe environments: large temperature changes may initiate lamp failure.