User Manual

Table Of Contents
ToxiRAE Pro PID Users Guide
48
Caution! After calibration is complete, remove the Calibration Adapter. When
monitoring, never operate the ToxiRAE Pro PID with the Calibration Adapter attached. 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.
13.2.2. Disconnecting The Calibration Adapter
After calibrating the ToxiRAE Pro PID, you must remove the Calibration Adapter by
lifting it off the ToxiRAE Pro PID.
13.3. Zero Calibration
This operation sets the zero point of the sensor calibration curve for clean air. Expose the
ToxiRAE Pro PID to a clean air source with 20.9% oxygen and without any organic,
toxic, or combustib le gas impurities. This “Zero Air” can come from a cylinder or clean
ambient air.
Note: If you use a zero air cylinder, you must use the ToxiRAE Pro PID Calibratio n
Adapter. Using a calibration adapter is not necessary for calibration in fresh air.
Turn on the ToxiRAE Pro PID. Once it has been through its startup, enter Programming
Mode:
1. Press and hold [MODE] and [Y/+] until you see the Password screen.
2. Input the 4-digit password:
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.
Step from digit to digit using [MODE].
When you are done, press [MODE] until OK or Cancel is highlighted.
Press [Y/+] to register the password (if OK is highlighted) or to exit without
entering the password (if Cancel is selected).