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NOTE
The "WEAK" or "FAIL" flag may appear in place of the "PASS" flag
in the case of a weak or failed sensor. See the instructions in the Sensor
Failed Alarms section later in this chapter for corrective action.
13. Remove the tubing from the probe. After fresh air has been detected, the
display will alternate between "ALARMS SILENCED", and the
readings, and then return to the normal operating mode, after an
"ALARMS ACTIVE" message is displayed.
14. Unscrew the regulator from the cylinder, leave the components of the
calibration kit assembled for convenience and place in the storage case.
Calibration Alarms
The Innova may alert you to one or more of the following alarms during
calibration:
• Sensor Failed Alarm
• Weak Sensor
• Calibration Incomplete
Sensor Failed Alarm
If you attempt to air adjust or calibrate a faulty sensor, the Innova alerts you
with a Sensor Failed Alarm.
I
NDICATIONS
• The backlight turns on automatically.
• The gas reading is replaced by XXX.
• Lights and Buzzer are steady.
R
S
ESPONDING TO A
ENSOR
1. Complete the calibration procedure for the remaining sensors (if
applicable), then return to the normal screen. The normal screen will
continue to notify you of the sensor failure with a message.
2. Turn off the Innova, then verify that the sensor is installed properly, see
Chapter 6, Maintenance, Replacing Sensors. Verify that the calibration
gas value is correct in the Auto Cal Gas Valve Screen.
3. If the calibration gas value is correct, and the sensor is installed
properly, turn the instrument on and repeat the air adjust and
calibration procedures.
4. If the Fail condition persists, replace the sensor, see Chapter 6,
Replacing Sensors, then calibrate the new sensor.
71-6417
F
A
AILED
LARM
Calibration
39
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