EST Encon Evolution, Руководство пользователя

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Foam Sensor – (OPTION) – If selected, during purge a fiber optic beam monitors for
foam in the glassware. If a foamed sample is detected the sample will be drained; the GC
will be sent a start signal to perform a blank run, ensuring the GCs sequence table is
accurate. The sample pathway is then baked out and a notification is written to the
instrument’s sample log.
Automatic Leak Check – This feature provides the ability to leak check the concentrator
prior to beginning a method run. This is a separate function from the manual leak check
(Refer to the Troubleshooting section for manual leak check).
Off – Select Off and the leak check is disabled.
On – Select On and the Encon EV will perform a leak check each time the
concentrator steps from standby status and prior to Ready status.
First Pass – Select this option and the Encon EV will perform a leak check each time a
new sequence line is loaded
GC Cycle Time (min) – This is the time in minutes between the start of a sample desorb
and the time the GC is ready for the next desorb cycle from the Encon EV . This value is
equal to or greater than the sum of the total GC analytical run plus the GC cool down
time and equilibration time. The GC Cycle Time can be set to a value of 0.0 - 999.9
minutes using the up/down selection arrows. Note: The GC cycle time is used when the
GC run time is longer than the purge and trap cycle time or when utilizing the dual
concentrator option of the Encon Evolution system.
Start Delay (min) – This is the time in minutes that the Encon EV will wait until sending
out a ready signal. The start delay time can be set to a value of 0.0 - 999.9 minutes using
the up/down selection arrows.
Economy Mode - During idle instrument time the Encon EV can remain powered on and
programmed to conserve energy and gas. To display the Economy Mode, <click> the
Program button. A screen will be displayed as shown in Figure 3g. Enable the desired
Saver mode(s). Enter the Initiate Time (time after the system becomes ready in which
you wish to enter this mode) in minutes. Enter the reduced Gas Flow if the Gas Saver is
enabled. Once the elapsed initiate time is reached the Economy Mode will go into effect
and the flow will be reduced to the set point and/or the heaters will be disabled. A
caution box will be displayed indicating the Economy Mode is active. To deactivate the
Economy Mode and return to the Standby mode, <click>
OK . The Encon EV will
remain in standby until the heated zones reach the set points.