The Keyboard and Display
The display
18
Beeping instrument
If a gas flow cannot reach setpoint, you hear a series of beeps. The flow shuts
down after 1 or 2 minutes.
If a hydrogen flow is shut down or a thermal shutdown occurs, a continuous
beep sounds. Cancel the beep by pressing [Clear].
Any other type of fault, warning, or shutdown is accompanied by one beep.
Blinking setpoint
If a gas flow, multiposition valve, or the oven is shut down by the system, Off
will blink at the appropriate line of the control table. This helps you identify
where the problem occurred.
The detector On/Off line blinks if there is a pneumatics shutdown or a failure in
another part of the detector, such as a TCD filament.
Actual and setpoint values
When there are two values in one line of a control table, the left value is always
actual and the right value is always a setpoint. When there is only one value, it
is either an actual or setpoint, depending on the table. On some control tables—
such as those controlling columns—the far right number is both actual and
setpoint.
Actual values
Setpoint values
Actual value
Actual value
Setpoint value
Setpoint and actual values
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