NGA-2000 System Calibration

3.1 Set-up analyzer modules

Before we can run any system calibration features we have to include the different analyzer modules (AM’s) into system calibration by setup needed parameters. Only after correct setting up, an AM is included into system calibration and only then it makes sense to go into the other menus.

System configuration and diagnostics...

↓

System calibration...

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Set-up analyzer modules...

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Analyzer Set up

 

Choose analyzer module....

 

 

 

Gas type:

SPANGAS-1

Assigned to system valve:

V5

Purge time:

20 s

Note: Ranges are always calibrated separately !

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Analyzer module:

MLT/CH2

Module enabled for system-cal:

NO

 

 

 

 

View...

 

SCAMGAS SCVALVE SCPURGE

SCMODULE SCCONTROL

Setting up an AM for system calibration means assigning valves from system valve pool. The Control Module provides support of up to 32 system-valvesV1....V32. We have to

decide which valves deliver which gases for an analyzer module. Also we have to know the purge time from a valve to the AM/ MLT channel.

For each of the following types in the parameter „Gas type“ we have to assign a valve and the appropriate purge time :

∙SAMPLE-GAS

∙ZERO-GAS

∙SPANGAS-1 (span gas for range 1)

∙SPANGAS-2 (span gas for range 2)

∙SPANGAS-3 (span gas for range 3)

∙SPANGAS-4 (span gas for range 4)

Conditions for the valve assignment:

·Once a valve has been assigned to be a sample gas valve for any AM it must not be used for zero or span gases !

·The zero valve of an AM can not be a span valve of the same AM.

·All gas types have to be assigned to a system-valve.

·TFID has internal valves to be assigned separately as system valves!

90003482(2) [NGA-e (MLT-Software 3.2.X)] 07/98

NGA 2000

Supplement - 7