INSTALLATION
2
17
OPTIWAVE X400
www.krohne.com
10/2017 - 4006413501 - AD NEPSI OPTIWAVE x400 R01 en
Refer to the tables that follow if:
•
you replace an OPTIWAVE 7300 signal converter with the OPTIWAVE 7400 signal converter
without a distance piece, or
•
you replace an OPTIWAVE 6300 signal converter with the OPTIWAVE 6400 signal converter
without a distance piece.
Temperature
class for
EPL Ga/Gb,
EPL Gb or EPL Gc
Maximum surface
temperature for
Zones 20/21,
Zone 21
or Zone 22
Maximum ambient temperature
Maximum process connection
temperature
(max. process temperature)
[
°
C]
[
°
F]
[
°
C]
[
°
F]
T6
T85
°
C
+60
+140
+60
+140
+50
+122
+85
+185
T5
T100
°
C
+75
+167
+75
+167
+65
+149
+100
+212
T4
T135
°
C
+67
+153
+115
+239
+59
+138
+135
+275
T3
T150
°
C
+54
+129
+150
+302
Temperature
class for
EPL Ga/Gb,
EPL Gb or EPL Gc
Maximum surface
temperature for
Zones 20/21,
Zone 21
or Zone 22
Minimum ambient temperature
Minimum process connection
temperature
(min. process temperature)
[
°
C]
[
°
F]
[
°
C]
[
°
F]
All classes
1
All surface
temperatures
1
-40
-40
-40
-40
-37
-35
-50
-58
1
Min. process connection temperature is -20
°
C / -4
°
F, if a Kalrez
®
6375 gasket is used. Min. process connection temperature is -30
°
C /
-22
°
F, if a Metaglas
®
feedthrough is used. Min. process connection temperature is -40
°
C / -40
°
F, if the device has a Horn or Drop an-
tenna with an FKM/FPM gasket.
