Baker Hughes Panametrics Aurora H2O, User Manual

Page: 33 / 92

Chapter 3. Operation
and general
programming
3.1 Using the Aurora H2O
Follow the information in this chapter to operate the Aurora
H2O system.
Class 1 laser product
WARNING!
Use of controls or adjustments or
performance of procedures other than
those specified herein may result in
hazardous laser exposure.
3.2 Sample system
See the instructions below and Figure 33 on page 24 to
operate the Aurora H2O sample system.
3.2.1 Aurora H2O startup
1. Supply gas inlet pressure should be <400 psig (2760 kPa).
2. Confirm that there are no flow restrictions downstream
of the analyzer sample outlet.
a. Maximum outlet back pressure: 10 psig
3. Start with all valves in fully closed position and the
pressure regulator turned fully counter-clockwise.
4. Turn the sample gas selector valve [1] with the handle
indicator pointing fully to the right.
5. Open the bypass gas metering valve [2] 1/4 turn.
6. Fully open the sample gas metering valve [3].
7. Slowly open the supply gas isolation valve [4] 1/4 turn.
8. Slowly turn the supply gas pressure regulator [6]
clockwise until the sample gas flow meter [7]
indicates mid-scale.
a. If the pressure is increased to rapidly, it will
activate the liquid-block feature of the
membrane filter [8] shutting off gas flow.
b. If this occurs, fully close the supply gas
isolation valve [4].
c. Wait 30 seconds, and then go back to step 7.
(A pop sound can be heard when the
liquid-block re-opens to allow gas flow)
9. Slowly adjust the bypass gas needle valve [2]
until the desired flow rate is reached (requires
optional flow meter for precise metering).
10. Fully open the supply gas isolation needle valve [4].
3.2.2 Aurora H2O shut down
1. Fully close the supply gas isolation valve [4].
2. Turn the supply gas pressure regulator [6] fully
counter-clockwise.
3. Fully close the bypass and sample gas metering
valves [2 and 3].
3.2.3 Aurora H2O purge gas connection
1. Start with all valves in closed position and the
pressure regulator turned fully counter-clockwise.
2. Confirm that there are no flow restrictions
downstream of the analyzer sample outlet.
a. Maximum outlet back pressure: 10 psig
3. Turn the sample gas selector valve [1] with the handle
indicator pointing fully to the left.
4. Connect the regulated and filtered gas supply.
a. Regulated pressure range: 0-10 psig.
b. Outlet filter size: 7 micron
c. Initial pressure setting: 0 psig (minimum)
5. Fully open the sample gas metering valve [3].
6. Increase the regulated pressure until the sample
gas flow meter [7] indicates mid-scale.
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