User Manual

Table Of Contents
ToxiRAE Pro PID Users Guide
50
Press [Y/+] if you want to change it.
If you entered the Calibration Menu without supplying the correct password, or
supplied the correct password but chose not to change the Cal.Gas, you will see a
message like this:
Cal.Gas: Isobutylene
Span=100ppm
Apply gas
2. Press [Y/+] to start calibration.
3. Press [MODE] if you want to quit without calibrating.
During calibratio n, the calibration gas name, its concentration, and the countdown are
displayed. Depending upon the device alarm settings, the monitor may go into low and
then high alarm once span calibration is complete, which is expected in response to the
test gas.
Note: You can abort span calibratio n during its countdown by pressing [MODE].
Upon completion, the screen Span is done! appears along with the reading (it should be
within 10% of the span gas concentration).
Important! After calibration is complete, you must remove the Calibration Adapter from
the ToxiRAE Pro PID. If the Calibration Adapter is attached during normal operation,
inconsistent and lower-than-normal readings will occur because of decreased
concentration of the gas being monitored.
13.4.1. Changing Span Gas Concentration
If you selected “Change” for span gas concentration, the following screen appears:
1. Press [Y/+] repeatedly to select a desired number. Numbers increase from 0 to 9.
Once 9 is reached, pressing [Y/+] again wraps around back to 0.
2. Step from one digit to the next by pressing [MODE].
3. When you are done, press [MODE] until either OK or Cancel is selected.
Press [Y/+] to register your selection (if OK is highlighted) or to exit without
registering it (if Cancel” is selected).