Deltabar PMD78B PROFINET with Ethernet-APL Technical data
Endress+Hauser 91
T
p
T
a
+32
+80
40
+185
113
200
100
−70
300
392
392
+32
−94
572
[°C]
[°F]
[°C][°F]
− −40 25
− −40 22
0
0
T
a
T
p
A0038682
Process pressure range Pressure specifications
L
WARNING
The maximum pressure for the device depends on the lowest-rated component with
regard to pressure (components are: process connection, optional mounted parts or
accessories).
‣
Only operate the device within the specified limits for the components!
‣
MWP (maximum working pressure): The MWP is specified on the nameplate. This
value refers to a reference temperature of +20 °C (+68 °F) and may be applied to the
device for an unlimited time. Note temperature dependence of MWP. For flanges, refer
to the following standards for the permitted pressure values at higher temperatures:
EN 1092-1 (with regard to their stability/temperature property, the materials 1.4435
and 1.4404 are grouped together under EN 1092-1; the chemical composition of the
two materials can be identical.), ASME B 16.5a, JIS B 2220 (the latest version of the
standard applies in each case). MWP data that deviate from this are provided in the
relevant sections of the Technical Information.
‣
The overpressure limit is the maximum pressure a device may be subjected to during a
test. It is greater than the maximum working pressure by a certain factor. This value
refers to a reference temperature of +20 °C (+68 °F).
‣
The Pressure Equipment Directive (2014/68/EU) uses the abbreviation "PS". The
abbreviation "PS" corresponds to the MWP (maximum working pressure) of the device.
‣
In the case of measuring cell range and process connection combinations where the
overpressure limit (OPL) of the process connection is smaller than the nominal value of
the measuring cell, the device is set at the factory, at the very maximum, to the OPL
value of the process connection. If the entire measuring cell range must be used, select
a process connection with a higher OPL value (1.5 x PN; MWP = PN).
‣
Oxygen applications: do not exceed values for P
max
and T
max
.
Burst pressure
As of the specified burst pressure, the complete destruction of the pressure-bearing parts
and/or a device leak must be expected. It is therefore imperative to avoid such operating
conditions by carefully planning and sizing your facility.
Thermal insulation Thermal insulation when mounting with a temperature isolator
The device may only be insulated up to a certain height. The maximum permitted
insulation height applies to an insulation material with a thermal conductivity ≤ 0.04 W/
(m x K) and to the maximum permitted ambient temperature and process temperature.
The data were determined under the application "quiescent air".
To Next Page
Loading...
Need help?
General
