GE XDP-H2, Руководство пользователя

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Operation 3-1
January 2008
Introduction
The XDP is an easily operated monitoring device. Make sure that the
system has been installed in accordance with the instructions given in
Chapter 2,
Installation , before applying power. This chapter includes
discussions of the following topics:
•
preventing common problems
•
powering up the system
•
programming the meter
•
taking measurements
!WARNING!
To ensure safe operation of the XDP, it must be installed
and operated as described in this manual. In addition, be
sure to follow all applicable local safety codes and
regulations for installing electrical equipment.
Preventing Common
Problems
The complexity of accurately measuring the target gas mixtures
dictates that some basic precautions be observed in using the XDP.
Failure to observe these simple procedures is often the cause of some
common problems. Compliance with the following points will help to
eliminate such problems:
•
Calibration of the analyzer should be checked approximately every
2–6 months, depending upon the specific application (see
“Calibrating the System” on page 4-20).
•
Never use thread sealant on any connection in the sample gas flow
path. Thread sealant emits combustible vapors that can cause
reading errors.
•
The infrared keypad may not function properly if direct sunlight
strikes the face of the XDP or if the XDP is installed in an
environment that has a high infrared content. To minimize such
factors, provide suitable shading during installation.
Cleaning the Enclosure
If the glass window or the case of the XDP becomes soiled, use a soft
cloth dampened with water for cleaning. Never use solvents or
detergents to clean the XDP.