Electronic pressure sensor
PM11
11
For a correct functioning of the ventilation diaphragm please take the following into account:
u
Remove soiling and cleaning agents immediately using plenty of lime-deficient splash water.
If the sensor is in a cooling stage:
u
Avoid contact of the ventilation diaphragm with liquids to avoid negative pressure in the
measuring system (resulting in a slightly falsified measured value) and additional strain on
the diaphragm.
5.3.2 Orientation filter cover
The filter cover is freely rotatable around the sensor's axis and thus adaptable to the environmental
conditions.
When the sensor is mounted in a vertical position, the condensate escapes through the ports in the
protective cap due to gravity.
When the sensor is mounted in a horizontal position or similar, the filter protection cap must be rotated
towards one of the two lateral faces to bring the ventilation diaphragm into a vertical position. This
guarantees the optimum drainage for liquids.
3
1
2
u
Ideal orientation (1):
The filter cover is in a horizontal position.
w
The ventilation diaphragm (2) in the filter cover is in a vertical
position.
u
Maximum inclination of the filter cover: 30° (3)
5.3.3 Replace filter cover
(1) Accessory E30483 (with drip edge) or E30142 (without drip edge)
Filter cover with integrated ventilation diaphragm.
In difficult environmental conditions or an installation situation that does not correspond to the ideal
alignment (1), the following accessories can be used to protect the ventilation diaphragm:
(2) Accessory E30148
Closed version of the filter cover:
Ò
Observe the operating instructions of the sensor!
(3) Set of accessories E30139
Filter cover with integrated ventilation diaphragm and tube fitting with a vent tube.
(4) Set of accessories E30467
Ventilation for demanding applications:
Consisting of an adapter with integrated ventilation diaphragm, a tube fitting that is directly inserted into a right-angle fitting, or
with a vent tube placed in between.
