Endress+Hauser Hart Cerabar PMP71B, Руководство по эксплуатации

Страница: 79 / 84

Cerabar PMP71B HART Technical data
Hauser 79
Thermal insulation Thermal insulation with diaphragm seal directly mounted
The measuring device may only be insulated up to a certain height. The maximum
permitted insulation height is indicated on the measuring device and applies to an
insulation material with a heat conductivity ≤ 0.04 W/(m x K) and to the maximum
permitted ambient and process temperature. The data were determined under the most
critical application "quiescent air". Maximum permitted insulation height, here indicated on
a measuring device with a flange:
A
B
1 2
A0020474
A Ambient temperature
B Process temperature
1 Maximum permitted insulation height
2 Insulation material
Mounting with a "Compact" diaphragm seal type
T
p
T
a
−100 −148
−50 −58
0 32
50 122
100 212
150 302
200 392
[°C]
[°F]
[°C] [°F]
−60
−76
−40
−40
−20
−4
0
32
20
68
40
104
60
140
80
176
100
212
T T
p
p
T T
a a
A0040383
T
a
Ambient temperature at transmitter
T
p
Maximum process temperature
T
a
T
p
+85 °C (+185 °F) –70 to +120 °C (–94 to +248 °F)
+60 °C (+140 °F) –70 to +160 °C (–94 to +320 °F)