Installation
Cerabar M, Deltapilot M
20
Hauser
The maximum height difference depends on the density of the fill fluid and the lowest
pressure that is permitted to occur at the diaphragm seal (empty tank). See illustration
below. The following diagram shows the maximum installation height above the lower
diaphragm seal for vacuum applications.
1
2
3
4
5
A
B
0.0
6.6
13
20
26
33
39
1 1.45
4.35
6
7.25
9
10.15
12
13.05 14.5
3
[psi
]
abs
[ft]
A0023986-EN
A
Height difference H1
B
Pressure at diaphragm seal
1
Low-temperature oil
2
Vegetable oil
3
Silicone oil
4
High-temperature oil
5
Inert oil
Mounting with temperature isolator
Hauser recommends the use of temperature isolators in the event of constant
extreme medium temperatures which cause the maximum permissible electronics temper-
ature of +85 °C (+185 °F) to be exceeded. Depending on the fill fluid used, diaphragm seal
systems with temperature isolators can be used for maximum temperatures of up to
+400 °C (+752 °F) , see Technical Information, section "Diaphragm seal fill fluids". To mini-
mize the influence of rising heat, Hauser recommends the device be mounted
horizontally or with the housing pointing downwards. The additional installation height
also brings about a zero point shift of maximum 21 mbar (0.315 psi) due to the hydro-
static column in the temperature isolator. You can correct this zero point shift at the
device.
Содержание Cerabar M
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