urs should be attended before switching on the analyser, in order to compensate the temperature difference.

1.        Put the analyser on the desired place

2.        Build the connections from the measurement place to the gas inlet and outlet of the analyser. Check the connections for leaks.

  1. If a pressure limitation is necessary, a needle valve directly in    

front of the gas inlet. (can be supplied by the manufacturer

At long transport routes and unfavourable temperature conditions the material of the connecting pipes must be chosen so that an oxygen permeability is excluded. The manufacturer recommends the follow­ing materials in dependence of the measuring conditions:

Material of the connecting pipes

Low temperature of measuring gas................Thick-wall PVC-hose

Higher temperature of measuring gas........        Tygon R 3603 (supplier  e.g. Novodirekt Kehl)

hydrogen concentration of < 10000 ppm................Stainless steel pipe.

4.        If the measuring gas contains so much water vapour, that the danger of condensing water in a cold connecting pipe exists, a water trap must be installed before the admission of the measuring gas into the analyser.

The penetration of water into the hot measuring cell can destroy it and therefore must be absolutely prevented.

6.        Connect the hydrogen analyser to the power supply.

The measuring gas can also flow through the ANALYSER when it’s turned off.



Switch on and measurement indication

After production of the ready mode of the hydrogen analyser

and the the connection of all lines according to chapter 7.2,  the apparatus can be switched on.

1.Apply the power source

  1. The measuring cell has reached her operating temperature of

70 °C after approx. 15 minutes the present measuring value is shown

10,2 Vol.% 1234yf