NGA-2000 System Calibration

Example of a filled sequence buffer

Assignment of modules, system-valves and purge-times:

 

AM1

AM2

AM3

SAMPLE-GAS

V1 / 5 sec

V1 / 5 sec

V2 / 4sec

ZERO-GAS

V4 / 10 sec

V4 / 10 sec

V5 / 12 sec

SPANGAS-1

V5 / 10 sec

V5 / 10 sec

V6 / 12 sec

SPANGAS-2

V5 / 10 sec

V5 / 10 sec

V6 / 12 sec

SPANGAS-3

V6 / 10 sec

V5 / 10 sec

V4 / 14 sec

SPANGAS-4

V6 / 10 sec

V5 / 10 sec

V4 / 14 sec

To do is following user program:

1.

ZERO-CAL

ALL-modules

2.

SPAN4-CAL

AM2

3.END-OF-PGRM

Belonging sequence buffer:

 

 

action type

action data[0]

action data[1]

USER_STEP

1

 

SWITCH_VALVE

0006 hex (V4, V2)

 

PURGEWAIT

10

 

ZERO

AM1

 

PURGEWAIT

10

 

ZERO

AM2

 

CALWAIT

AM1

 

CALWAIT

AM2

 

SWITCH_VALVE

0011 hex (V5,V1)

 

PURGEWAIT

12

 

ZERO

AM3

 

CALWAIT

AM3

 

USER_STEP

2

 

SWITCH_VALVE

0012 hex (V5, V2)

 

PURGEWAIT

10

 

SPAN

AM2

4

CALWAIT

AM2

 

END-OF-PGRM

 

 

The size of sequence buffer is currently 320.

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

NGA 2000

Supplement - 27