Typical Sample Gas Flow Rate; Ambient Temperature; Sample Transport; Instrument Air - Ametek 241CE II Operator's Manual

Typical Sample Gas Flow Rate

Variable with line pressure. Typically 1.0–5.0 L/min (2.1–10.6 SCFH) dur-
ing the Purging/Hold Stage, and 0.3–3.3 Nl/min (0.7–7.0 SCFH) during the
remainder of the cycle. The gas purge flow rate during the Purging/Hold
Stage must be high enough to completely purge the sample system and
Measuring Cell within the allotted Purge time.

Ambient Temperature

For hazardous location safety, ambient temperature may be from 0 °C to
+40 °C (32 °F to 104 °F). For measurement accuracy, the temperature of
the analyzer and its sample system must be at least 15 C° (27 F°) above the
highest expected hydrocarbon dewpoint temperature. It is also extremely
important to maintain a relatively stable ambient temperature in the vicin-
ity of the analyzer, with no rapid fluctuations. Due to the low flow rate
and sintered metal flame arrestors, the sample gas temperature will be at
or very close to ambient temperature.

Sample Transport

1/4" stainless steel instrument tubing recommended (heat tracing may be
required).

Instrument Air

6.9 KPA (1 PSIG) Cooler Housing purge.
Air Quality:
As per ANSI/ISA-S7.0.01 (1996) Quality Standard for Instrument Air

Physical Dimensions

Mounted on backpan:
Height:
Width:
Depth:
Weight:

Maximum Working Pressure

13.8 MPa (2000 PSIG)

Highest Measurable Dewpoint

15 °C below the temperature at the analyzer installation.
838 mm (33")
571.5 mm (22.5")
289 mm (11.37"), includes backpan
Approximately 60 kg (132 lb)
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Specifications 2-3