3-22
IM AQ6375E-02EN
CAUTION
• Before purge with nitrogen, ensure that there is adequate ventilation in the room.
• The instrument warranty will be void if damage is caused by the use of inappropriate
nitrogen and purge gas.
French
ATTENTION
• Avant toute purge à l’azote, vérifiez que la pièce est correctement ventilée.
• La garantie de l’instrument est nulle si les dommages sont causés par l’utilisation d’azote
ou d’air sec inadaptés.
Purge gas
Use ultra-high purity liquid nitrogen which must be 99.9999% pure grade with the heat exchanger is
recommended. The gas temperature must be 23±3°C.
If compressed nitrogen must be used, the gas must be dry, oil-free and uncontaminated. Never use
compressed nitrogen from a supplier who uses oil or water in the compression process.
Maximum rating
Pressure and flow rate of purge gas must be lower than the following maximum rating.
Pressure: 1.5 psig (0.01 MPaG)
Flow rate: 25 SCFH (12 L/min)
Purge Gas Temperature Specifications
Gas temperature: 23±3°C
Note
• A pressure regulator and precision flowmeter must be used.
• Aprecision flowmeter with an adjustable needle valve is recommended.
3.6 Purge
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