Teledyne 200A Manual do Utilizador descarregar pdf (Página 91)

Teledyne API Model 200A NO

Analyzer Instruction Manual, 02246, Rev. G, DCN 5247

If an ammonia permeation tube is being used, substitute the molecular weight of NH

(17

g/mole) for that of NO

The temperature is set at 50.0

C. Check SETUP-MORE-VARS and scroll to the IZS-SET

variable to verify that the temperature is properly set. It should be set to 50

C with over-and-

under temperature warnings set at 49

C and 51

C. There is a 60 cc/min flow across the

permeation tube at all times to prevent build-up of NO

gas in the tubing.

If desired, the output of the permeation tube can be adjusted by adjusting the oven temperature

up or down slightly. The adjust increment is 0.1

C to facilitate small adjustments of the setpoint

temperature.

WARNING

Do not leave instrument turned off for more than 8 hours

without removing the permeation tube. Do not ship the

instrument without removing the permeation tube. The

tube continues to emit NO

, even at room temperature

and will contaminate the entire instrument.

6-6

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