Additional Equipment - Afriso Rf Ex Serie Betriebsanleitung

9.2 Pressure gauge holder
If the measuring line is not sufficiently stable to carry the pressure gauge
without transmitting vibrations or shocks, install a pressure gauge holder.
9.3 Siphons
If the temperature of the measured medium at the measuring point is higher
than the permissible operating temperature of the product, the shut-off units
and the products must be protected from the hot medium by means of suffi-
ciently long measuring lines or siphons. Siphons help to condense the
medium for the elastic measuring element and help to protect the product
from excessively hot medium.
1. Mount a siphon filled with the medium or a similar device close to the
product.
2. Fill the siphon with the condensate of the medium.
3. Pressurise the arrangement.
- The hot medium cannot reach the product when pressure is applied.
9.4 Chemical seals
If the medium is corrosive, hot, highly viscous or crystallising, chemical seals
may be used to help prevent the medium from reaching the measuring ele-
ment. A neutral liquid is used to transmit the pressure to the measuring ele-
ment.
1. Select this pressure transmission liquid according to the measuring
range, temperature, viscosity, compatibility of the liquid and the medium
and other factors.
2. Mount an additional cooling element between the chemical seal and the
product so that the pressure transmission liquid can withstand the temper-
ature of the medium.
3. Do not separate the connection between chemical seal and product.

Additional equipment

RF ... EX / KP ... EX
EN
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