Invacare Perfecto2IRC5PO2AW Service Manual page 82

SECTION 24—ALARM TEST
4. Slowly adjust flow beyond maximum rated flow until you can achieve a concentration
level greater than 75% but less than 84%. Within 30 minutes, the YELLOW panel
indicator light will illuminate and the unit will continue to run.
5. Clamp off the 1/8-inch oxygen sensor tubing between the oxygen sensor and the
product tank regulator.
Use care not to cut oxygen sensor tubing when clamping the oxygen sensor tubing.
6. Within 30 minutes, the Oxygen Sensor Alarm should activate and the RED panel light
indicator will illuminate. The compressor will shut down with the alarm.
LABEL
SYMBOL
SYSTEM OKAY
O
O over 85% (± 2%)
2
2
O Between 73% (± 3%)
2
to 85% (±2%)
SYSTEM FAILURE
O Below 73% (±3%)
2
Perfecto ™
2
WARNING
FIGURE 24.3 Oxygen Sensor
SENSO ALARM THRESHOLD
2
STATUS
GREEN Indicator Light
YELLOW Indicator light
A. YELLOW Solid
B. YELLOW Flashing Sensor Failure
Call a qualified technician.
RED Indicator light
Continuous Audible Alarm Sieve-GARD™Compressor
Shutdown
Call a qualified technician
82
1/8-inch I.D. Oxygen Sensor Tubing
(Clamp Off Flow)
INDICATOR LIGHTS
Part No 1154245