General Guidelines For Choosing A Site - GE Moisture Image Series 1 Startup Manual

General Guidelines for
Choosing a Site
Installation
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•
Choose an installation site for the probes and sample systems that
is as close to the process line as possible. Avoid long lengths of
connecting tubing. If long distances are unavoidable, a fast
sampling by-pass loop is recommended. Do not install any other
components, such as filters, ahead of the probes or sample system
unless instructed to do so by GE Panametrics.
•
Observe all normal safety precautions. Use the probes within their
maximum pressure and temperature ratings.
•
Although the Series 1 may not need to be accessed during normal
operation, install the electronics unit at a convenient location for
programming, testing and servicing. A control room or instrument
shed are typical locations.
•
Locate the electronics unit away from high temperatures, strong
electrical transients, mechanical vibrations, corrosive atmospheres,
and any other conditions that could damage or interfere with the
meter operation. See Chapter 3, Specifications, for limits.
•
Protect the probe cables from excessive physical strain (bending,
pulling, twisting, etc.). In addition, do not subject the cables to
temperatures above 65°C (149°F) or below -50°C (-58°F).
•
Observe the proper cable restrictions for the probes. You can
locate the Moisture Image Series probe up to 915 meters (3000
feet) away from the electronics unit with unshielded twisted pair
cable. The M Series and TF Series probes require specially
shielded cable. You can locate the M and TF probes up to 600
meters (2000 feet) from the unit. If you are measuring pressure
with a TF probe, the cable length should not exceed 152 meters
(500 feet).
April 2004
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