Teledyne 9060L, Percent Oxygen Analyzer operating instructions Oxygen Calibration, Span Calibration

Percent Oxygen Analyzer Operation

2.Immediately (within 5 seconds) press either the Δ or ∇ button until Auto, Lo, or Hi displays on the LCD, as desired.

After about three seconds, the analyzer resumes monitoring in the selected range mode.

4.6 Oxygen Calibration

There are two types of calibration one is air calibration, and the other is span which uses some other gas other than air. Since the zirconia sensor uses air as reference, the output is nearly zero millivolts. So, in doing the air calibration, you are basically reading the offset of the sensor. The span calibration (using gas other than air) would make the sensor give an output other than zero, thus it is the high calibration.

4.6.1 Span Calibration

Connect a suitable span gas to the port on the side of the probe head. To do this, remove the plug on the gland on the side of the probe marked REF. See Figure 4.2 Attach the span gas at this port using a suitable fitting and use a flow rate between 1-5 lilters per minute. The span gas exits at the tip of the probe. A suitable span gas can be an oxygen mixture between 1 to 16 %, with the balance being nitrogen. Using a concentration between 1 to 5% is preferable, as the sensor will yield a higher output.

Power up the instrument and allow the LED reading to stabilize. Set the alarm setpoints and the full scale ranges to the desired values.

Figure 4-2: Calibration Port on Probe Head

Span Procedure:

1. Press the SPAN button once.

Note: The numeric LED starts flashing and will continue to flash

Teledyne Analytical Instruments 35