04 Series for CO(-H2)
Appendix A: Maintenance Mode • 81
Performing a Gas Test
1. While in Maintenance Mode, press AIR to scroll to
GAS.TEST
.
2. Press and release POWER MODE. The current gas reading displays. The bottom of the
LCD alternates between “GAS.TEST” and “BUZZ.OFF”.
3. Turn the regulator knob counterclockwise to open the regulator.
4. The instrument initiates alarm indications except for the buzzer. There is no buzzer
indication in the
GAS.TEST
menu even though the buzzer sounds in the event of a real
gas alarm condition.
5. Turn the regulator knob clockwise to close the regulator.
6. Unscrew the regulator from the calibration cylinder.
7. Remove the calibration cup from the CO-04C.
8. Store the calibration kit in a safe and convenient place.
9. Press and release POWER MODE to return to the
GAS.TEST
item in Maintenance
Mode.
10. See “Entering Measuring Mode (START)” on page 87 to enter Measuring Mode.
Sensor/Battery Replacement Date (SEN.DATE)
The
SEN.DATE
item allows you to keep track of when the sensor and the batteries were
replaced.
1. While in Maintenance Mode, press AIR to scroll to
SEN.DATE
.
2. Press and release POWER MODE. The sensor replacement date displays.
3. Use AIR to scroll to the item whose replacement date you want to view or change.
GAS .TEST
CO
0
GAS .TEST
ppm
CO
0
BUZZ .OFF
ppm
SEN .DATE
2019
11 .2
CO
2019
1. 1
BATTERY
ESCAPE
AIR AIR
AIR
