Condumax II Transportable
Sampling System User’s Manual
Michell Instruments
9
OPERATION
4. Adjust the solenoid valve to the
PURGE POSITION
(fully screwed in
clockwise) as shown on the label attached to the solenoid valve.
5. Allow the sample gas to enter the system.
6. Open the Bypass Needle Valve (
NV1
) one full turn.
7. Adjust the HCdp Flow Metering Valve (
MV1
) to indicate a sample gas
flow rate of approximately 0.12m³/h (full-scale) on the HCdp Flowmeter
(
FM1
).
8. Allow the sample gas to purge the system for a minimum of 3 minutes.
9. Re-adjust the solenoid valve to the
NORMAL OPERATING POSITION
(fully
unscrewed counter-clockwise) as shown on the label attached to the
solenoid valve.
10. Re-fit the Condumax II user interface/display assembly and flameproof
enclosure cover.
NOTE: Make sure the hex grub screw is tightened
to prevent inadvertent removal.
11. After the flameproof enclosure cover has been refitted, the Condumax II
is ready for power up. Apply the power supply to the system.
12. The HCdp Pressure Regulator (
PR1
) is used to set the HCdp gas analysis
pressure. Pressure is indicated on the main display of the Condumax II. It
is normal practice for an analysis pressure of 27 barg (391 psig) to be set for
hydrocarbon dew point, as it is the recognized cricondentherm condition
(pressure at which the highest hydrocarbon dew-point temperature will
exist). To adjust the
PR1
- remove the cap to uncover the adjustment
screw. Make the adjustment with a 4mm hex key.
Adjustment
Figure 8
PR1 Adjustment Point
Summary of Contents for Condumax II
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