INFICON 2020ppbPRO Portable Photoionization Detector User Manual

Page 68

ISP-074-576-P1D

Figure 17. Calibration with Flow-Match

Calibrating the 2020ppbPRO with the
Flow-Match Regulator

1. Ensure that the short sample probe is connected to the 2020ppbPRO

filter tube holder inlet.

NOTE: Ensure the sample probe is free of any contamination, as this will affect the

calibration.

2. Press the CAL key.

3. Follow the instructions on the display and connect the intake sample

conditioner tube (F1760162) and filter tube holder (A1790500).

NOTE: If using Ultra Zero air, connect the air tank to the tube holder inlet using a suitable

regulator.

Then press the “Next” key. The 2020ppbPRO will take 60-90 seconds to

set the zero point for calibration.

4. The 2020ppbPRO

display will show “Zero air calibrated. Continue

calibration?” Press the “Next” key.

5. Enter the span gas concentration if the concentration displayed on the

2020ppbPRO is different than the concentration of the span gas
cylinder. Pre

ss the “New” key and follow the display prompts. For

further information, see page 43 for numeric value, duration, time, and
date entry. If the span concentration matches the span gas cylinder
concentration, press the “Next” key. To exit calibration, press the
“Cancel” key.

6. Ensure the calibration gas cylinder is upright and open the regulator by

turning the valve counter clockwise. Open the regulator until the ball is
1/8” from its rest position.