Thermo Scientific Corona Veo, Руководство по эксплуатации

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6 • Operation
Charged Aerosol Detectors Corona Veo (RS) Operating Manual Page 131
5. Turn the gas regulator knob to adjust the gas pressure setpoint to
the value that is defined on the gas pressure certificate. Observe the
following:
♦
Per knob revolution, turning the knob will change the pressure
by approximately 20 psi (138 kPa, 1.4 bar).
♦
To increase the gas pressure, turn the knob slowly clockwise.
♦
To decrease the gas pressure, turn the knob slowly
counterclockwise.
♦
Monitor the increase or decrease of the gas pressure on the
detector display while turning the knob.
When the gas pressure setpoint matches the gas pressure from the
nebulizer certificate, continue with the next step.
Figure 29: Adjusting the gas pressure with the knob
6. Hold the regulator knob firmly in position and retighten the lock nut
with the other hand to avoid changing the pressure upon tightening.
Verify that the pressure setpoint on the display does not change
while tightening the lock nut.
7. Wait until the gas pressure reading has stabilized and reached the
setpoint. On the Diagnostics screen, monitor the pressure reading of
the
Gas Pressure
parameter (see section 6.4.2.1, page 112 ).