PN 903-8797, Rev A
Specication Description
Electrical
Requirements
Power Consumption
< 275 W
Maximum Current: 3 A
Supply Voltage
120 VAC, 50/60 Hz, ±10 % maximum
240 VAC, 50/60 Hz, ±10 % maximum
Typical Sample Gas
Flow Rate
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
ow 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 vicinity of the analyzer, with
no rapid uctuations. Due to the low ow rate and sintered metal
ame 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: 838 mm (33")
Width: 571.5 mm (22.5")
Depth: 289 mm (11.37"), includes backpan
Weight: Approximately 60 kg (132 lb)
Maximum Working
Pressure
13.8 MPa (2000 PSIG)
Highest Measurable
Dewpoint
15°C below the temperature at the analyzer installation.
Environmental IEC Installation Category II
IEC Pollution Degree 2
Humidity
0–95 % RH (non-condensing)
Maximum Altitude
2000 metres (6560 feet)
Cooling Capability Typically 60 °C (108 °F) below the surrounding ambient temperature
at the location of the analyzer. The cooling capability of the analyzer
is aected by the sample gas composition and pressure.
Note:
60 °C is achieved at a 20 °C ambient temperature. The
achievable temperature dierence will be slightly higher as
the ambient temperature increases above 20 °C.
5-2 | 241CE II Hydrocarbon Dewpoint Analyzer