Teledyne 2120 - Trace Nitrogen in Argon Analyzer - Manual (Page 22)

Introduction Model 2120
Sudden or uncontrolled release of pressurized gas can cause serious
injury. The hazards of high pressure can be avoided through careful
inspection and handling of cylinders and equipment with proper
regulation. Read and understand the MSDSs for the process gases used
before operating this analyzer. More detailed information on the
precautions and safe practices to follow when handling cylinders can be
found in the CGA pamphlet P-1, Safe Handling of Compressed Gases in
Cylinders.
1.7.4.3 P URGING
CAUTION: EQUIPMENT DAMAGE MAY RESULT IF THE
ANALYTICAL CELL IN THIS UNIT IS EXPOSED TO
EXCESSIVE PRESSURE, CAUSING IT TO BREAK OR
SHATTER. TO PREVENT THIS, NEVER EXCEED 6
PSIG (41 KPA) ON THE ANALYTICAL CELL.
DO NOT REMOVE THE FLOW CONTROL ORIFICE
FROM THE SAMPLE INLET OF THE ANALYZER.
DO NOT EXCEED 10 PSIG (69 KPA) AT THE SAMPLE
INLET.
DO NOT BLOCK THE VENT.
A flow control orifice at the analyzer sample inlet regulates flow
and pressure to the analytical cell. With the orifice in place, a
maximum inlet pressure of 10 psig (69 kPa) is allowable.
Follow applicable safety precautions to ensure that an oxygen-
deficient atmosphere is not created in the work area. Use low parts per
million (ppm) nitrogen in argon gas with proper regulation to avoid
contaminating the sampling system.
1.7.4.4 S AFE R EPAIR P ROCEDURES
Any repair work must be performed by a qualified service
technician. Use only factory-approved components for repair.
Analyzer manifold purging as well as subsequent repair work must
be performed by experienced personnel.
Ventilate working area to prevent any leaking supply gas from
accumulating. Vent all gases to the outside.
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Teledyne Analytical Instruments