TIGER Select Instrument User Manual V3.2
Unrivalled Gas Detect
ion.
Page 53 of 73
ionscience.com
7.
Calibration
ION Science recommends that personnel responsible for equipment use
institute a regime of regular checks to ensure it performs within calibration
limits, and that a record be maintained which logs calibration check data.
PID Calibration
TIGER Select offers the following PID calibration options:
•
PID Factory Calibration
is set by ION Science Ltd during instrument manufacture or on re-
calibration by an ION Science authorised service centre, for example during an annual
service. Factory Calibration offers a safe set of three-point calibration data. This should be
used if the custom calibration fails and will keep the unit working until a good custom
calibration is completed. Please contact ION Science Ltd or your local distributor for further
information.
ION Science Ltd recommends annual servicing and calibrations for users who require
traceable calibration records. During this service, the Lamp and MiniPID 2 Sensor are
brought back to factory specifications and new Factory Calibration data is loaded.
•
PID Custom Calibration
is performed by the instrument user and should be carried out as
part of regular instrument maintenance. Before doing so, first set up the
TIGER Select scales its linear output across a Zero level (clean air reference) and the SPAN 1
user-defined gas concentration. However, due to the linear output of the ION Science
MiniPID 2 Sensor, a two-point calibration is often adequate. For more exacting
requirements, TIGER Select therefore offers a three-point calibration which uses an
additional SPAN 2 higher gas concentration.
PID Custom Calibration
Before proceeding, ensure the
calibration parameters are set in TigerPC:
TIGER Select allows you to custom calibrate using any gas from the Gas Table at any concentration
from 10ppm. You will need a cylinder of the gas at the chosen concentrations.
Have the cylinder(s) of gas, regulator(s) and the Carbon Filter Assembly ready before starting the
procedure. Alternatively, a known clean air supply may be used as the Zero gas. Demand flow
regulators are recommended for the calibration of the TIGER Select. If flow regulators are to be used