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Stainless steel housing, version V, W
T-class
Permissible process tem-
perature range on the
antenna in zone 0 (EPL Ga)
T6
-196 ... +80 °C
T5
-196 ... +95 °C
T4
-196 ... +130 °C
T3
-196 ... +195 °C
T2
-196 ... +290 °C
T1
-196 ... +440 °C
For process temperatures between -50 ... +195 °C the lower ambient temperature on the housing
can be min. -50 °C (with PLICSCOM) or -60 °C (without PLICSCOM).
For process temperatures lower than the maximum values given in the above tables, higher ambient
temperatures on the housing may be permissible. For details, contact VEGA.
The application conditions during operation without hazardous atmospheres can be found in the
manufacturer information in the operating instructions manual.
9.3
Thermal data - Dust
Max. surface temperature T
EPL Da instrument - Complete device (antenna and housing) installed in Zone 20 (sur-
rounded by 200 mm dust):
Max. permissible ambient/process temperature:
Surface temperature:
Max. surface temperature:
EPL Db instrument - Complete device (antenna and housing) installed in Zone 21 (without
dust layer):
Max. permissible ambient/process temperature:
Surface temperature:
Max. surface temperature:
EPL Da/Db instrument - Housing installed in Zone 21 without dust layer, antenna installed
in Zone 20:
VEGAPULS 6X with plastic horn antenna
PS6X(*).2*W**B*AT/AU/AV************
Housing
Permissible process
(electronics)
temperature range
on the antenna in
zone 20
Aluminium
-40 ... +76 °C
A, D, H, S
22
Permissible ambient temperature range on the electronics
in zone 1 (EPL Gb)
without inspection window
-30 ... +75 °C
-30 ... +70 °C
-30 ... +63 °C
-30 ... +66 °C
-30 ... +61 °C
-30 ... +51 °C
of VEGAPULS 6X when used in explosive atmosheres:
sur
Permissible ambient
temperature range
in Zone 21 on the
electronics housing
-40 ... +65 °C
+65 °C
Ambient/Process temperature +35 K
= 65 °C + 35 K = 100 °C
+65 °C
Ambient/Process temperature +35 K
= 65 °C + 35 K = +100 °C
Surface temperature
of the electronics
housing
Ambient temperature
+35 K
with inspection window
-20 ... +75 °C
-20 ... +70 °C
-20 ... +63 °C
-20 ... +66 °C
-20 ... +61 °C
-20 ... +51 °C
Max. surface tem-
perature
+100 °C
VEGAPULS 6X
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