RAEGuard
S
EC / LEL / IR User’s Guide
2.4 Calibration
WARNING
The calibration of all newly purchased RAE Systems instruments
should be tested by exposing the sensor(s) to a known
concentration calibration gas before the instrument is used or
put into service. For maximum safety, the accuracy of the
RAEGuard
S
should be checked by exposing the sensor to a
known concentration calibration gas, after a period of time.
T
he RAEGuard
S
is calibrated using a two-point calibration process. First, use
a “zero gas.” Then use a “span gas” containing a known concentration of a
standard reference gas, to set the second point of reference.
Note:
The zero
calibration must be performed before the span calibration.
RAEGuard
S
connected to gas cylinder with a calibration adapter.
Gas calibration requires a bottle of zero gas, a bottle of span gas, and
a calibration adapter.
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