Installation, 2 maximum surface temperature of the housing, 3 process pressure – KROHNE OPTIWAVE 7300 IECEx User Manual
Page 11
INSTALLATION
2
11
OPTIWAVE 7300 C
www.krohne.com
10/2010 - 4000176502 - AD IECEX OPTIWAVE7300 R02 en
2.2.2 Maximum surface temperature of the housing
Zone 20: Ex iaD devices only
Zone 20/21: Ex iaD and Ex tD[iaD] devices only
2.2.3 Process pressure
Max. ambient temperature
Max. flange
temperature
Max. surface
temperature
Hygienic antennas
Drop and horn
antennas
Drop and horn
antennas with the
distance piece
[°C]
[°F]
[°C]
[°F]
[°C]
[°F]
[°C]
[°F]
[°C]
[°F]
+60
+140
+60
+140
+60
+140
+60
+140
+62
+143
+75
+167
+75
+167
+75
+167
+75
+167
+77
+170
+85
+185
+85
+185
+85
+185
+85
+185
+87
+188
+67
+152
+59
+138
+62
+143
+150
1
+302
1
≤+90
≤+194
-
-
-
-
+57
+134
+200
2
+302
2
≤+90
≤+194
1 Max. flange temperature is +100°C / +212°F, if the PP Drop antenna is used. Max. flange temperature is +150°C / +302°F, if the PTFE
Drop antenna or Hygienic antenna are used.
2 Do not use the PP Drop antenna. Max. flange temperature is +150°C / +302°F, if the PTFE Drop antenna or Hygienic antenna are used.
Equipment protection level
Allowable process pressure
[kPa]
[psi]
EPL Ga or Ga/Gb
80…110
1
11.6…16
1
Others
As per non-Ex device
As per non-Ex device
1 Atmospheric pressure