Contents | ix
The Model 241CE II Analyzer is designed for applications of sweet (H
2
S < 50 PPM) natural
gas. The composition of the gas must be above the upper explosive limit.
Cautions
Review and follow these Cautions to avoid damaging the equipment.
The electronic circuit boards and other static-sensitive components should be stored and trans-
ported in static-shielding carriers or packages.
For electrical-shock protection, the analyzer must be operated from a grounded power source
that has a securely connected protective-ground contact.
If it becomes necessary to handle any of the electronic circuit boards, do not subject the boards
to static discharge. The ideal solution is a static-safe work area. Since such areas typically are
not available at field installation sites, the use of a wrist strap connected directly to a ground
is recommended. If a wrist strap is not available, you should at the very least touch the metal
chassis (to ground yourself) before handling or touching the boards.
Do not exceed the maximum working pressure rating of the sample system – 13.8 MPa (2000
PSIG) – under any circumstances.
Do not exceed a Vent Line pressure of 344 KPAG (50 PSIG).
Special Conditions for Safe Use
During use, the Cooler Housing section of the Measuring Cell Assembly can functionally be
purged with a dry gas such as air or nitrogen. The pressure of this gas at the upstream end of
the breathing and draining device is maximum 7 kPag (1 PSIG).
The sample gas must be above the upper explosion limit and may have a maximum pressure of
138 BAR, at a temperature of +40 °C (+104 °F).
Ex d certified conduit or cable seals that comply with the flameproof enclosure cable entry
sealing requirements of the local authority must be installed at the entries to the Electronics
Enclosure. All unused cable entry ports must be plugged with a certified Ex d plug.
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CAUTION
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