Endress+Hauser Proline Prowirl 200, Safety Instructions

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XA01148D Proline Prowirl 200
16 Hauser
High-temperature version
Version with max. T
m
= 440 °C
T
a
[ºC]
T6
[85 °C]
T5
[100 °C]
T4
[135 °C]
T3
[200 °C]
T2
[300 °C]
T1
[450 °C]
55 80 95 130 195 290 440
70 – 95 130 195 290 440
85 – – 130 195 290 440
Explosion hazards
arising from gas
and dust
Determining the temperature class and surface temperature with
the temperature table
• In the case of gas: Determine the temperature class as a function of
the ambient temperature T
a
and the medium temperature T
m
.
• In the case of dust: Determine the maximum surface temperature as a
function of the maximum ambient temperature T
a
and the maximum
medium temperature T
m
.
Example
• Measured maximum ambient temperature: T
ma
= 58 °C
• Measured maximum medium temperature: T
mm
= 108 °C
T
a
[°C]
T1
[450 °C]
40
60
65
80 95 130 195 280
–
95 130 195 280
– –
130 195 280
T6
[85 °C]
T5
[100 °C]
T4
[135 °C]
T3
[200 °C]
T2
[300 °C]
–
–
–
A0021297
 1 Procedure for determining the maximum surface temperature
1. In the column for the maximum ambient temperature T
a
select
the temperature that is immediately greater than or equal to the
measured maximum ambient temperature T
ma
that is present.
 T
a
= 65 °C.
The row showing the maximum medium temperature is
determined.