Teledyne 2240 - Portable Handheld Hydrogen Leak Detector, 3rd generation (revision 2/29/08) - Manual (Page 29)

Handheld Hydrogen Leak Detector Field Verify/Calibration
Teledyne Analytical Instruments 19
3.5 Calibrate Sensor
The Calibrate function allows the user to perform a field calibration
of the instrument. After Field Calibration TAI recommends running the
Verify Function. To carry out a Field Calibration follow the procedure
listed in Table 3-2.
Table 3-2: Field Calibrate Procedure
Step Display User response
1
Hydrogen
<0.001%H2
Press ENTER
2 Information Disp Press ▼
3 Reset Sensor Press ▼
4 Zero Sensor Press ▼
5
Field Calibrate
XX/XX/XX
Press ENTER or ►
6 Verify Sensor Press ▼
7 Calibrate Sensor Press ENTER
8
Calibrate Sensor
Are you sure? Press ENTER to Calibrate sensor, any other key to
exit.
9
Calibrate Sensor
In Progress
Calibration begins.
10
Apply 0.000%H2
Are you sure?
With the Calibration Cup that accompanies the
instrument, apply hydrogen-free, ultra-zero air to the
Probe sensor. The Probe Tip LED will remain
Green. Press ENTER.
11
Apply 0.000%H2
In Progress
0% Calibration starts.
12
Apply 0.000%H2
Settle
Checking sensor temperature.
13
Apply 0.000%H2
Wait xxxx
Wait for sensor reading to stabilize until xxxx = 0.
14
Apply 0.000%H2
Finding Average
Measuring sensor response to test gas.