Gas Tracer Operator’s Manual, CSA Version
Using Maintenance Mode • 125
•
To return to the BUMP screen in Maintenance Mode, press POWER
ENTER at any time. If any channel failed the calibration, the buzzer will
sound a double pulsing tone until you press and release the POWER
ENTER button.
•
Disconnect the tubing from the Gas Tracer’s probe.
13. Unscrew the demand flow regulator from the calibration cylinder.
14. With the BUMP menu option displayed, press the (SHIFT)
▼
button until the
NORMAL
menu option is displayed.
15. Press and release the POWER ENTER button to return to Measuring Mode.
Calibrating and Bump Testing the PPM Combustible Sensor
The PPM sensor in the Gas Tracer needs to be calibrated and bump tested
separately. It cannot be calibrated using the AUTO CAL or ONE CAL menu items
in the main menu or bump tested using the BUMP menu item in the main menu.
The PPM CAL menu item must be used. In addition, a 6 inch humidifier tube
must be used to connect the ppm calibration cylinder to the instrument.
1. Use the AIR
▲
or (SHIFT)
▼
buttons to display the PPM CAL Mode item.
49
12.0
5
%LEL
%
ppm
MAINTENANCE
CH
4
O
2
/CAL
CO
MAINTENANCE
BUMP
MAINTENANCE
PPM CAL
