12 analyzer operation, 1 process status – Yokogawa GC8000 Process Gas Chromatograph User Manual

Page 65

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<1. Overview>

1-38

IM 11B08A01-01E

1.12 Analyzer

operation

The GC8000 operates in two operating statuses: the process status and the manual status. The
operating statuses are changed to each other in the stop mode. The process status is set when
the equipment is turned on.

1.12.1 Process

status

Normal process measurement, calibration, and validation are performed in the process status.
The following measurement statuses are available in the process status. The measurement
status is set to “Stream sequence” when the equipment is turned on.

Measurement status

Function

User level Operation

button

Stream sequence

Measures streams in series in a preset sequence.

B or higher

Stream designation

Measures the designated streams continuously or a

specifi ed number of times.

Also stops operation after the specifi ed number of times of

measurement.

B or higher

Calibration (Validation)

Gives a command to change the measurement setting to a

preset pattern among Calibration 1 to 6 or Validation 1 to 6.

B or higher

Command cancellation

Cancels a command to change the measurement status.

C or higher

Start of calibration (or

validation)

Gives a command to start calibration (or validation).

This is used for manual calibration (or validation).

B or higher

Termination of calibration

(or validation)

Gives a command to terminate calibration (or validation).

This is used for manual calibration (or validation).

B or higher

Start/termination of

automatic calibration

Gives a command to start or terminate automatic

operation.

This is not available when manual or semiautomatic

calibration (or validation) is selected.

C or higher

The following modes are available in the process status.
The process status and the manual status can be changed to each other in the stop mode.

Run

• A mode to perform measurement

• Measurement is started in this mode.

Users at Level B or higher are allowed to activate this mode.

Pause

• A mode to suspend measurement

• In the process status, measurement is suspended in this mode at the

time preset by the GCM method.

Users at Level B or higher are allowed to activate this mode.

Stop

• A mode to stop measurement

• In this mode, measurement is continued through the main cycle preset

by the GCM method, and then stopped.

Users at Level B or higher are allowed to activate this mode.

Command

cancellation

• Operation mode commands waiting for execution are canceled in this

mode.

Users at Level B or higher are allowed to activate this mode.

Forced stop

• The current operation mode is forcibly terminated in this mode.

Users at Level C+ or higher are allowed to activate this mode.

Figure 1.19 shows the transition among measurement statuses and operation modes.

2nd Edition : May 11, 2012-00

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