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Liquipoint T FTW 31, FTW 32
Ambient temperature
range
Storage temperature
Climate class
Degree of protection
Shock resistance
Vibration resistance
(at min. rod length)
Electromagnetic
compatibility
Medium temperature
limits
!
Conductivity
Limiting medium pressure
range
Endress + Hauser
Environment
Non-hazardous area
–40 ... 70 °C
–40 ... 60 °C (for FEW 58 NAMUR)
–40 ... 80 °C
Tropicalised as per DIN EEC 68, part 2-38
IP66
Practical test
DIN 60068-2-64 / IEC 68-2-64: 20 ... 2000 Hz, 1 (m/s
•
Interference Emission to EN 61326, Electrical Equipment Class B
Interference Immunity to EN 61326, Annex A (Industrial)
•
Use for separte-instrumented probes a screened cable between the probe and the switching
unit.
For installation instructions for screened cables and general instructions for EMC inspection
conditions of E+H devices, see also TI 241F.
Process conditions
Permissible ambient temperature T
temperature T
in the vessel:
2
T
1
T
2
–40
Note!
For separately instrumented devices (without FEW 5?) there are no restrictions in the indicated
temperature range.
≥ 10 µS
–1 ... 10 bar
2
2
)
/Hz
at the housing as a function of the measuring material
1
T
1
70
60
50
40
30
20
10
0
0
–30
–20
–10
10
20
30
40
–10
–20
–30
–40
FEW 52, FEW 54
FEW 58 (NAMUR)
T
50
60
70
80
90
100
2
17
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