Ametek 241CE II User Manual page 116

15. Install the Filterblock Assembly on its mounting screws (on the backpan)
16. Reconnect the tubing to the Filterblock Assembly and hand-tighten the
17. After ensuring that all connections are made and secure, perform a leak
18. If the Electronics Enclosure door was opened use a soft, nonabrasive cloth
19. Restore AC power to the analyzer. After start-up, the analyzer will immedi-
20. Reset the Mirror Low setpoint temperature (MTLo) and the purging time
4-28 | 241CE II Hydrocarbon Dewpoint Analyzer
and tighten them.
nut for each fitting. Using two wrenches, use one to rotate the nut to the
original position (an increase in resistance will be encountered at the origi-
nal position), then tighten it slightly. Repeat for the other fittings.
test on all of the Filterblock's tubing connections and a high pressure flow
rate test on the Filterblock Assembly to ensure there are no leaks. See
"Sample System Leak Check" in Chapter 2.
to gently clean the joining areas (flame path) of the Electronics Enclosure
and its door. Close the door and replace the 24 M10 screws. The torque
specification to fasten M10 screws is 9.0 Nm, ±0.7 Nm (80 in.-lb, ±9 in.-lb).
ately begin operation. The Run Time is reset to zero ('0').
(Purge) to their normal (original) operating values.
The results obtained by the first few measuring cycles are usually
slightly too low (invalid) due to contamination. This can be caused by
the residual water remaining from the cleaning (after maintenance)
and/or exposure of the sample system to the atmosphere – i.e., diluted
with residual air after installation or maintenance.
Depending on the degree of contamination and the purging duration,
the number of measuring cycles required to obtain valid results can
vary. Typically, five measuring cycles will be sufficient to remove the
water or air contaminants after the sample system has been exposed
to water or the atmosphere.
PN 903-8797, Rev A