Panametrics Aurora H2O, User Manual

Page: 48 / 170

Aurora H2O User’s Manual 1
Chapter 3. Operation and General Programming
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
3.2 Sample System
See the instructions below and Figure 34 on page 3 to operate the Aurora H2O sample system.
3.2.1 Aurora H2O Startup
1. Supply gas inlet pressure should be <400 psig (2758 kPa).
2. Confirm that there are no flow restrictions downstream of the analyzer sample outlet. The maximum outlet back
pressure should be <10 psig (69 kPa).
3. Start with all needle valves (items 2, 3 and 4) in the closed position, by turning them fully clockwise. The pressure
regulator (item 6) should be turned fully counter-clockwise.
4. Start with the sample gas selector valve (item 1) handle indicator pointing fully to the right, in order to select the
sample gas line.
5. Open the bypass gas metering valve (item 2) 1/4 turn counter-clockwise.
6. Fully open the sample gas metering valve (item 3) by turning it fully counter-clockwise.
7. Slowly open the supply gas isolation valve (item 4) 1/4 turn counter-clockwise.
8. Slowly turn the supply gas pressure regulator (item 6) clockwise until the sample gas flow meter (item 7)
indicates mid-scale.
a.
If the pressure is increased too rapidly, it will activate the liquid-block feature of the membrane filter
(item 8), shutting off the gas flow.
b. If this occurs, fully close the supply gas isolation valve (item 4) by turning it clockwise.
c. Wait 30 seconds and then go back to Step 7 (a pop sound can be heard when the liquid-block opens to
allow gas flow).
9. Slowly adjust the bypass gas metering valve (item 2) until the desired flow rate is reached (requires optional flow
meter for precise metering).
10. Fully open the supply gas isolation needle valve (item 4) by turning it counter-clockwise.
WARNING!
Use of controls or adjustments or performance of procedures other than those specified
herein may result in hazardous laser exposure.