
tqna49e1 (2010-05) 19
4 Operation
Put the gauge into operation. If you are using an VARIAN con-
troller, define the measurement range (→ [1]).
A warm-up time of at least ¼ hour should be allowed; for exact
pressure measurements a warm-up time of at least 2 hours is
required.
4.1 Displays
RUN
ZERO
12
SP
LED State Meaning
<RUN>
lit Measurement mode
flashing Other mode, error, out of
measurement range
<1>
*)
lit
p ≤ setpoint level 1
flashing Adjusting setpoint <1>
<2>
*)
lit
p ≤ setpoint level 2
flashing Adjusting setpoint <2>
*)
Gauges with switching functions only.
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