PROline Prosonic Flow 93 PROFIBUS DP/PA
!
Endress+Hauser
Temperature tables
Prosonic Flow**PA*-A/B*****B/D***** and
Sound velocity measuring sensors DDU 18-A***
at T
= 60 °C
a
Sensors**PA*-A/B*****B/D*****
Sensors DDU 18-A***
The minimum medium temperature is –40 °C
Prosonic Flow**PA*-E/F*****B/D***** and
Sound velocity measuring sensors DDU 18-B***
at T
= 60 °C
a
Sensors**PA*-E/F*****B/D*****
Sensors DDU 18-B***
The minimum medium temperature is 0 °C
Wall thickness measuring sensor DDU 19-A***
at T
= 60 °C
a
Sensor DDU 19-A***
The minimum medium temperature is –40 °C
Transmitter Prosonic Flow 93 P**-************
The Prosonic Flow 93 transmitter has a T6 temperature class rating when installed in the
EEx d housing for operation at ambient temperatures up to T
The maximum ambient temperature range is –20...+60 °C.
Gas explosion protection
Determine the temperature class dependent on the ambient temperature and the
medium temperature.
Dust explosion protection
Determine the maximum surface temperature dependent on the ambient temperature
and the medium temperature.
Example:
Prosonic Flow 93PA*-E*****B*****:
= 110 °C → T4 with maximum surface temperature of 135 °C
T
= 60 °C, T
a
M
Note:
At the specified medium temperatures, the equipment is not subjected to temperatures
impermissible for the temperature class in question.
T6
85 °C
PVC cables
80
PVC cables
80
T6
85 °C
PTFE cables
80
PTFE cables
80
T6
85 °C
PVC or PTFE cables
80
<
Max. medium temperature [°C] in
T5
T4
T3
T2
100 °C
135 °C
200 °C
300 °C
80
80
80
80
80
80
80
80
Max. medium temperature [°C] in
T5
T4
T3
T2
100 °C
135 °C
200 °C
300 °C
95
130
170
170
95
130
170
170
Max. medium temperature [°C] in
T5
T4
T3
T2
100 °C
135 °C
200 °C
300 °C
80
80
80
80
= 60 °C.
a
T1
450 °C
80
80
T1
450 °C
170
170
T1
450 °C
80
3