Gow-Mac 75-810-AR, Руководство по эксплуатации

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Model 75-810 & 75-810-AR Noble Gas Purifier
Rev. 0 11/20
15
4 Installation
Locate the 75-810 on a table top with the rubber feet on the surface. In this position,
the gas in and out connections are on top and the purifier cartridge is in the correct
vertical orientation which reduces gas channeling through the getter material.
Connect the 75-810 fitting marked GAS IN to the source of carrier helium or
argon. A diaphragm shut-off valve in the supply line will facilitate servicing
the 75-810. Recommended tubing specification is 1/8 inch OD X 0.028
wall, 316L stainless steel, cleaned or electropolished. Orbital butt weld a ¼
inch VCR® gland including a female nut for connection to the 75-810. Test any new
weld to verify there is no leak. Likewise prepare a tube to connect to the GAS
OUT fitting. Connect the 75-810 GAS OUT to the CARRIER IN connection on the
gas chromatograph or ZERO GAS IN connection on an analyzer.
The flat pin receptacle on the top panel allows monitoring of the cartridge
temperature. For usual operation, monitoring is not necessary because the
heater should operate at optimum temperature when the 75-810 is powered
on. It is during transitions to start-up and shut-down that knowing the
temperature is important, especially the 150 °C point that is referred to throughout
this manual. Use a flat pin thermocouple connector (not provided) and K
thermocouple leads connected to a suitable meter to monitor 75-810 temperature.