8
Calibration
All newly purchased ToxiRAE II instruments
should be bump tested by exposing the sensor
to known concentration calibration gas before
the instrument is used or put into service . A
bump test is defined as a brief exposure of the
monitor to the calibration gas and the sensors
to show response and trigger the lowest alarm
set point for each sensor .
The ToxiRAE II must be calibrated if it does
not pass a bump test, or at least once every
180 days, depending on use and sensor
exposure to poisons and contaminants .
•
Calibration intervals and bump test procedures
may vary due to national legislation .
• RAE Systems recommends using RAE
calibration gas .
• Any rapid up-scale reading followed by a
declining or erratic reading may indicate a gas
concentration beyond the upper scale limit,
which may be hazardous .
For maximum safety, the accuracy of the monitor
should be checked by exposing the sensor to
known concentration calibration gas before each
day’s use (field calibration).
