Endress+Hauser Hart Cerabar PMP71B, Руководство по эксплуатации

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Installation Cerabar PMP71B HART
22 Hauser
maximum temperature of +400 °C (+752 °F) depending on the fill fluid used. For details
see the Technical Information. To minimize the influence of rising heat, mount the device
horizontally or with the housing pointing downwards. The additional installation height
brings about a zero point shift due to the hydrostatic column in the temperature isolator.
This zero point shift can be corrected on the device.
The maximum ambient temperature T
a
at the transmitter depends on the maximum
process temperature T
p
.
The maximum process temperature depends on the diaphragm seal fill fluid used.
T T
p p
T
T
a
a
A B C
2 2
1
1 1
T
p
T
a
T
p
T
a
+176 +140 +104 +68 +32 -4
+400
+350
+300
+250
+200
+150
+100
+50
0
-50
-100
+752
+662
+572
+482
+392
+302
+212
+122
+32
-58
-148
[°C]
[°F]
[°C] [°F]
+80 +60 +40 +20 0 -20
-40
-40
A
A
C
C
B
B
-76
- 0 6
A0039378
A No insulation
B Insulation 30 mm (1.18 in)
C Maximum insulation
1 Transmitter
2 Insulation material
Item T
a
1)
T
p
2)
A 60 °C (140 °F) 400 °C (752 °F)
3)
85 °C (185 °F) 200 °C (392 °F)
–50 °C (–58 °F) 60 °C (140 °F)
–35 °C (–31 °F) –70 °C (–94 °F)
B 80 °C (176 °F) 400 °C (752 °F)
3)
85 °C (185 °F) 300 °C (572 °F)
–50 °C (–58 °F) 130 °C (266 °F)
–35 °C (–31 °F) –70 °C (–94 °F)