Gas Connections To The Instrument; Purging - Teledyne 2120XL Operating Instructions Manual

Trace Nitrogen in Argon Analyzer

3.6.2 Gas Connections to the Instrument

CAUTION: EQUIPMENT DAMAGE MAY RESULT IF THE
ANALYTICAL CELL IN THIS UNIT IS EXPOSED TO
PRESSURE ABOVE ATMOSPHERIC, CAUSING IT TO
BREAK OR SHATTER. TO PREVENT THIS, NEVER
EXCEED 20 PSIG (138 KPA) ON THE INLET PORT.
ALWAYS ENSURE THAT THE VENT IS AT
ATMOSPHERIC PRESSURE.
DO NOT REMOVE THE FLOW CONTROL ORIFICE
FROM THE SAMPLE INLET OF THE ANALYZER.
DO NOT BLOCK THE VENT.
To connect the gas line:
1. Connect an unobstructed vent line to the 1/8-in Swagelok
fitting on the vent port on the rear of the analyzer.
2. Connect the inlet line from the sample manifold system,
regulated to 4 to 20 psig (41 kPa), to the 1/8-in Input port
fitting on the rear of the analyzer.

3.7 Purging

The Model 2120XL is equipped with a flow control module
installed in the analyzer sample inlet to regulate flow and pressure to the
analytical cell. A maximum inlet pressure of 20 psig (138 kPa) is
allowable.
CAUTION: OZONE EMISSIONS ARE POSSIBLE IF AIR OR
MOISTURE IS IONIZED IN THE SAMPLING SYSTEM.
THE SAMPLE PATH MUST BE RELATIVELY FREE
OF AIR AND/OR MOISTURE BEFORE APPLYING THE
IONIZING VOLTAGE.
KEEP THE MODEL 2120XL POWER OFF AND PURGE
THE EXTERNAL TUBING. THEN APPLY POWER TO
PURGE THE INTERNAL LINES. ANALYZER POWER
IS NEEDED TO PURGE ANALYZER SINCE THE
FLOW CONTROL MODULE NEEDS POWER TO
OPERATE.
Teledyne Analytical Instruments
Installation
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