Ametek 241CE II User Manual page 146

Specification
Electrical
Requirements
Typical Sample Gas
Flow Rate
Ambient Temperature
Sample Transport
Instrument Air
Physical Dimensions
Maximum Working
Pressure
Highest Measurable
Dewpoint
Environmental
Cooling Capability
5-2 | 241CE II Hydrocarbon Dewpoint Analyzer
Description
Power Consumption
< 275 W
Maximum Current: 3 A
Supply Voltage
120 VAC, 50/60 Hz, ±10 % maximum
240 VAC, 50/60 Hz, ±10 % maximum
Variable with line pressure. Typically 1.0–5.0 L/minute (2.1–10.6
SCFH) during the Purging/Hold Stage, and 0.3–3.3 Nl/minute
(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.
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 vicinity 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.
1/4" stainless steel instrument tubing recommended (heat tracing
may be required).
6.9 KPA (1 PSIG) Cooler Housing purge.
Air Quality:
As per ANSI/ISA-S7.0.01 (1996) Quality Standard for Instrument Air
Mounted on backpan:
Height: 838 mm (33")
Width: 571.5 mm (22.5")
Depth: 289 mm (11.37"), includes backpan
Weight: Approximately 60 kg (132 lb)
13.8 MPa (2000 PSIG)
15 °C below the temperature at the analyzer installation.
IEC Installation Category II
IEC Pollution Degree 2
Humidity
0–95 % RH (non-condensing)
Maximum Altitude
2000 metres (6560 feet)
Typically 60 °C (108 °F) below the surrounding ambient temperature
at the location of the analyzer. The cooling capability of the analyzer
is affected by the sample gas composition and pressure.
Note:
60 °C is achieved at a 20 °C ambient temperature. The
achievable temperature difference will be slightly higher as
the ambient temperature increases above 20 °C.
PN 903-8797, Rev A