PerkinElmer Photovac MicroFID, User Manual

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Tutorial Session
Next select Low Range or High Range operation. Use Low Range if
you are sampling concentrations between 0.5 and 2000 ppm
(methane equivalents). Use High Range if you are sampling
concentrations between 10 and 50,000 ppm (methane equivalents).
You will now be prompted to connect a supply of zero air. You can
use ambient air, a charcoal filter (Part No. MX396021, MX396022)
to clean ambient air or, for best results, use a clean sampling bag
filled with zero grade air.
After MicroFID has set its zero point, you then enter the
concentration of the calibration gas and then connect the calibration
gas. MicroFID sets its sensitivity for the specified Cal Memory.
You must have a supply of calibration gas ready before calibrating
MicroFID. See Calibration on page 25 for detailed calibration
instructions.
When calibrating MicroFID, ensure the instrument is level. If
MicroFID is tilted from side to side, gravity will affect the flame
height and cause erroneous readings.
Figure 5 Keep MicroFID Level
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