System Calibration

3.4 Controlling System Calibration

After setting-up there is the possibility to start 3 different modes:

system zero-calibration:

In this mode a zero-cal of all modules, which are enabled for SYSCAL, will be performed. The order of modules depends on purge time for zero-valves because the whole calibration is time optimized.

system zero/span-calibration:

In this mode will be performed a zero-cal and a span- cal for every enabled AM. The order of calibration is optimized to have a minimum of calibration time. The only condition is to have for each AM first the zero-cal and after this the span-cal. With zero-cal an AM is zeroed with all ranges together, the span-cal is done separately for all available ranges. A range is available if its span-gas value is > 0.0.

user defined sequence program: In this mode the user is responsible for the

 

optimization. See setup of this mode.

gas test:

It is also possible to switch for test purposes onto a

 

specific gas of a specific module. A calibration is not

 

done.

Any mode can be started by the following instances:

∙Manually by operator interaction

∙Triggered by programmable input (DIO)

∙AK-protocol command

∙Programmed time-automatic (no gas test possible!)

∙LON-Variable CMFUNC

It is also possible to cancel a running system calibration. This can be done by the following instances:

∙Manually by operator interaction

∙Triggered by programmable input (DIO)

∙AK-protocol command

∙LON-Variable CMFUNC

There is no priority by which way SYSCAL can be started. If SYSCAL was started it can not be restarted by a further instance. Only after canceling it can be restarted.

90003749(1) [NGA-e (CLD-Software 2.3/MLT-Software 3.1.X)] 04/98

NGA 2000

Supplement - 13