5.6. Oxygen Compensation Chart
OXYGEN COMPENSATION CHART FOR MOISTURE IN THE ATMOSPHERE
ATMOSHERE OXYGEN PERCENT IN RELATION TO TEMPERATURE AND RELATIVE HUMIDITY
TEMP F
32
40
50
60
70
80
90
100
110
120
TEMP C
0
4
10
16
21
27
32
38
43
49
RELATIVE HUMIDITY
ATMOSPHERIC OXYGEN PERCENT
10
20.9
20.9
20.9
20.9
20.8
20.8
20.8
20.8
20.7
20.7
20
20.9
20 9
20.8
20.8
20.8
20.8
20 7
20.6
20.5
20.4
30
20.9
20.8
20.8
20.8
20.7
20.7
20.6
20.5
20.4
20.2
40
20.8
20.8
20 8
20.7
20.7
20.6
20.5
20.4
20.2
19.9
50
20.8
20.8
20.8
20.7
20.6
20.5
20.4
20.2
20.0
19.7
60
20.8
20.8
20.7
20.7
20,6
20.5
20.3
20.1
19.8
19.5
70
20.8
20.8
20.7
20.6
20.5
20.4
20.2
19.9
19.6
19.2
80
20.8
20.8
20.7
20.6
20.5
20.3
20.1
19.8
19.5
19.0
90
20.8
20.7
20.7
20.6
20.4
20.3
20.0
19.7
19.3
18.7
100
20.8
20.7
20.6
20.5
20.4
20.2
1S.9
19.5
19.1
18.5
H20at 100% RH
0.6
0.8
1.2
1.8
2.5
3.4
4.7
6.5
8.6
11.5
If the temperature and RH axis meet in this part of the chart, calibrate to the chart Q2 level or with dry air to maintain 0.5% 02
accuracy in NITROX.
6. Accessories
6.1. The Pro02 is supplied with a flow adapter cap and flexible tubing.
7. Troubleshooting
SYMPTOM
REASON
SOLUTION
Battery symbol
Low Battery
Change the battery
No display
Switched off
Bad connection
Switch on
Check display connection
Check battery connection
Zero reading
Sensor disconnected
Sensor expired
Check connection
Change sensor
Reading erratic
Pressure on sensor
Radio transmission
Sensor old or faulty
Condensation on sensor.
Check flow
Move unit away
Change sensor
Dry in air
Heading
does not change when
calibration knob is turned
Faulty connections
Sensor failure
Check connections
Chanqe sensor
Display segments missing
Display faulty
Return to dealer
Will not calibrate
Sensor faulty
Sensor not in air
High altitude
Change sensor
Check flow adapter
Calculate percent equivalent - 20.9% x
bar
Reading drifts
Rapid temperature change
Stabilize temperature & recalibrate
8. Maintenance
8.1.
Battery replacement.
8.1.1. Remove the 4 screws located at each corner of the unit and carefully lift the lid.
8.1.2. Slide battery out of its spring bracket and disconnect the lead.
8.1.3. Connect the lead to the new battery and slide the battery behind the spring bracket.
8.1.4. Replace the lid carefully and screw down taking care that the sensor locates properly.
8.1.5. Ensure that you do not trap any wires.
8.2. Sensor
replacement
8.2.1. Replacement
sensor: Internal sensor model - part number D-15
Remote sensor model - part number D-16
8.2.2. Remove the 4 screws located at each corner of the unit and carefully lift the lid.
8.2.3. Remove the flow adapter cap if fitted and slide the sensor out of the lid.
8.2.4. Disconnect
the
in-line sensor connector.
8.2.5. Dispose of the old sensor according to local regulations for lead and potassium hydroxide solution.
8.2.6. Remove the new sensor from its bag, connect to the in-line connector and slide through lid.
8.2.7. Replace the lid carefully and screw down taking care that the sensor locates properly. Ensure that you do not trap any wires.
