Normal Operation - Ametek 241CE II User Manual

To set the purge flow rate:
1. First, determine the steady-state flow through the Flow Restrictors in the
2. Close the pressure regulator.
3. Adjust the pressure regulator for the lowest flow rate (turn counter-clock-
4. While the analyzer is in its Purge cycle (Purging/Hold Stage), adjust the

Normal Operation

Once the analyzer is set up and started, the measuring cycle, the automatic
scrolling of results on the User Interface, and the presentation of measurement
results on the analog output channels is continuous. Typically, the only atten-
tion required will be when it is necessary to change an operating parameter or
to clear any current Warning or Fault alarms. This can be done from the
Stat\History menu ("Clear Alarm?" prompt).
2-40 | 241CE II Hydrocarbon Dewpoint Analyzer
Filterblock.
wise as far as possible) before reading the flow rate on the flow meter.
pressure regulator until the flow has increased by the desired purge flow
rate, approximately 1.0–5.0 Nl/minute (2.1–10.6 SCFH)
[Total flow = steady state + purge flow].
PN 903-8797, Rev A