Rosemount 755, Инструкция по эксплуатации

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M
ODEL
755 O
XYGEN
A
NALYZER
Rosemount Analytical 748183-H November 1997
P-2
The general purpose Model 755 Oxygen Analyzer, catalog number 191102, is for
operation in non-hazardous locations. It is of a type capable of analysis of
sample gases which may be flammable. If used for analysis of such gases, the
instrument must be protected by a continuous dilution purge system in
accordance with Standard ANSI/NFPA-496-1086 (Chapter 8) or IEC Publication
79-2-1983 (Section Three).
The explosion-proof Model 755 Oxygen Analyzer, catalog number 632440, is for
operation in hazardous locations. The enclosure must be properly secured with
all flange bolts in place and tightened, lens cover fully engaged, all factory
installed flame arrestor assemblies are properly installed in sample inlet and
outlet and any unused openings plugged with approved threaded plugs properly
secured in place. Installation must be made in accordance with applicable parts
of the NEC, especially Articles 501-4(a) and 501-5(a)(1).
If explosive gases are introduced into this analyzer, the sample containment
system must be carefully leak-checked upon installation and before initial start-
up, during routine maintenance and any time the integrity of the sample
containment system is broken, to ensure the system is in leak-proof condition.
Leak-check instructions are provided in Section 2.7.
Internal leakage of sample resulting from failure to observe these precautions
could result in an explosion causing death, personal injury, or property damage.
Tampering or unauthorized substitution of components may adversely affect
safety of this product. Use only factory documented components for repair.
This analyzer requires periodic calibration with known zero and standard gases.
See General Precautions for Handling and Storing High Pressure Cylinders, in
the rear of this manual.
WARNING: POSSIBLE EXPLOSION HAZARD
WARNING: HIGH PRESSURE GAS CYLINDERS
CAUTION: PARTS INTEGRITY