ION TIGER XT User Manual page 38

Zeroing
The following options are available:
•
When selected, the TIGER XT will automatically set its Zero reading based on ambient air
when it is switched on. When deselected the instrument will use its calibration Zero.
•
When selected, TIGER XT uses the fixed calibration Zero. If used in conjunction with the
'Zero at switch on' option, the instrument will Zero at switch on and then remain at that
level. If cleaner air is found the instrument will display as zero.
•
When selected, the Zero level will change if there is a negative reading. A negative
reading shows the instrument is in cleaner ambient air. This ensures 0.0 ppm is displayed in
clean air and ensures sub ppm levels are always detected.
Zones
Use this table to define and name up to 128 separate zones. The name field is limited to eight
characters including spaces.
Log Full
Select one of the following:
•
The instrument will alarm when the memory log is full. Logging will stop.
•
Logging will continue. New data will overwrite the oldest data in the log.
Pioneering Gas Sensing Technology.
TIGER XT Instrument User Manual V1.2
Page 38 of 71 ionscience.com