
Installation
38
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
3.5
Compressed air connection
A compressed air connection is required only if HYGROPHIL
®
H 4230-112
cannot be operated with the over-pressure of the measuring gas.
Do not connect any supply to the compressed air connection at the bottom
side of the device when operating with over-pressure!
The compressed air connection should deliver maximum 17.5 Nl/min at a
pressure of 2...5 bar. The pressure required depends on the negative pres-
sure in the system from which the measurement gas is extracted.
A compressed air conditioner is supplied with HYGROPHIL
®
H 4230 as an
accessory. It contains a reducing valve that can be used to set the neces-
sary pressure.
Do not connect any supply
when operating with over-pressure!
Содержание HYGROPHIL H 4230-12 Ex Zone II
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