MARKES CIA 8 Operators Manual

TM

UNITY 2

CIA 8 Operators Manual

Version 1.0

February 2008

1. UNITY 2 – CIA 8 method ...................................................................................................2

1.1. Internal Standard Addition .........................................................................................2

1.2. Parameters for on-line mode methods..........................................................................3

CIA 8 Operators Manual

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1. UNITY 2 – CIA 8 method

Once the software has been downloaded to the Air Server, the only operating mode available will be
On Line Air and an on-line sampling method is displayed. The system is now ready for use with
whole-air samples or for continuous on-line monitoring of air or gas streams.

Note: The ‘Pump On’ check box has no function.

Note: Selection of ‘Dryer On’ (for humid samples) by checking the appropriate box will only be

effective if the appropriate option has been installed.

1.1.

Internal Standard Addition

The internal standard gas is connected to the ‘I.S. in’ 1/8” connector. The flow through the internal
standard loop is controlled by the ‘I.S. Flow Regulation’ needle valve.

The only additional option available in the method with the CIA 8 compared to the Airserver is the
'Add Standard' check box. Enabling this option will mean during the 'Prepurge Time' the 1 mL
sample loop will be swept with internal standard at a flow rate determined by the 'IS flow
regulation' needle valve.

Once sampling begins the sample gas sweeps through the 1 mL sample loop carrying the internal
standard onto UNITY 2.

CIA 8 Operators Manual

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