PROGRAMMING
4-5
4.3. Calibration
WARNING!
The calibration of all newly purchased RAE Systems
instruments should be tested by exposing the sensor(s) to
known concentration calibration gas(es) before the
instrument is put into service the first time.
For maximum safety, the accuracy of the QRAE PLUS
should be checked by exposing the sensor(s) to known
concentration calibration gas(es) before each day’s use.
In programming mode, the user may re-calibrate the sensors in
the QRAE PLUS monitor. This is a two-point calibration
process using “fresh air” and the standard reference gas. First,
“fresh air” containing 20.9% oxygen and no detectable toxic or
combustible gases is used to set the zero point for each sensor
and span the oxygen sensor. Then a standard reference gas,
which contains a known concentration of a given gas, is used to
set the second point of reference (also known as span gas).
The two-point calibration procedure is detailed below. The sub-
menus for calibration operations (advanced mode) are:
Fresh Air Calibration?
Multiple Sensor Calibration?
Single Sensor Calibration?
Modify Span Gas Value?
Change LEL Span Gas?
OXY Calibration Type?
Содержание QRAE PLUS PGM-2000
Страница 5: ...NOTE THE SYMBOL MEANS CAUTION RISK OF DANGER CONSULT OPERATION AND MAINTENANCE MANUAL ...
Страница 8: ......
Страница 12: ...GENERAL INFORMATION 1 4 non condensing ...
Страница 33: ...OPERATION 2 20 A new datalog event is created when the datalogging is resumed ...
Страница 34: ......
Страница 65: ......
Страница 67: ......
Страница 73: ......
Страница 81: ...TROUBLESHOOTING 8 8 ...
Страница 83: ...APPENDIX A A 2 ü Function allowed Password required ...
Страница 87: ...APPENDIX B B 3 Xylene p 2 8 1 1 Lower Explosion Limit of the gas in volume percent ...