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Press the Right key to select Gas Library, or Custom Gases. Press Up or Down to scroll through the
gas list until the desired gas name is reached. For high-speed scrolling, press and hold the Up or
Down key to skip by alphabetical first letter. Press Right to select the gas and Left to save and exit.
Set Span Value
Span value settings (including Span 2) should match the concentration(s) of standard gas. Check to
ensure that the unit of concentration (e.g., ppm or mg/m
3
) on the gas cylinder agrees with the
instrument setting.
Measurement
The sub-menus for Measurement are Measurement Unit and Measurement Gas (VOC Mode only).
Measurement Unit
Standard available measurement units include:
Unit
Description
ppm
parts per million
ppb
parts per billion
mg/m
3
milligrams per cubic meter
µg/m
3
micrograms per cubic meter
µmol/mol µmol per mol
10
-6
per million
Measurement Gas
Measurement gases are organized in two lists:
•
Gas Library is a pre-set list that contains a few hundred chemicals
detectable by PID.
•
Custom Gases are user-defined, using mPower Suite to set up all gas
parameters, including the name, span value(s), correction factor(s),
and default alarm limits.
The Measurement Gas menu is not shown in Benzene Mode because the gas is always benzene.
Press the Right key to select Gas Library, or Custom Gases. Press the Up key or Mode key to scroll
through the gas list. For high-speed scrolling, press and hold the Up key until the desired gas name
is reached. Press the Right key to select the gas and the Left key to save and exit.
Calibration
Zero Calib
Span Calib
Set Cal. Gas
Set Span Value
Set Span 2 Value
Calibration
Zero Calib
Span Calib
Set Cal. Gas
Set Span Value
Set Span 2 Value
