QUESTION:
Which diaphragm can I use for my measured medium?
ANSWER:
It is not possible to give a definite answer herto. Neither can we assue the "compatibility of material". With the help of the so-called "DECHEMA list" we can roughly recommend the following:

Stainless steel 80% of all applications can be covered with stainless steel diaphragms

Hastelloy is suitable for: chloracetic acid, formic acid, or acetone

Monel is used to measure fluorides, cyanides, or sea water

Tantalum is used to measure phosphorus chlorides, sodium chloride, or hydrochloric acid.

Gold necessary for hydrogen.

The user can usually give more specific details concerning the compatibility of material. He knows which material to use for his pipes, and he knows with which diaphragm material the transmitter was made of during previous measurements of this substance.


QUESTION:
How can i measure a very small gage pressure?
ANSWER:
A very small gage pressure can be measured with a transmitter for differential pressure.
Simply one side must be open to atmosphere.
QUESTION:
What can I do when the temperature of the medium is higher than the maximummeasuring temperature allowed according to the technical data?
ANSWER:
1st possibility:
Use of remote seals (with high temperature oil, remote seals can operate at temperatures of up to 400°C).
2nd possibility
Using an impulse line of sufficient length. The measured medium sits in the impulse line, it doesn't flow. It therefore cools off to an ambient temperature relatively fast.


QUESTION:
How is an MLFB entered into the order correctly?
ANSWER:
Line A: MLFB
Where suffices are needed for the MLFB, a "-Z" is added
Line B: List of all necessary additons, separated with "+" from each other.
Line C: Each "Y**" addition receives an extra line C and must contain information to the "Y**" addition (plaese observe correct spelling).