Endress+Hauser Liquiphant M FTL50H - Environmental and Medium Condition Specifications; Storage, Climate, Protection, and EMC; Medium Properties and Pressure Ratings

XA00182F-F Liquiphant M, Liquiphant S FTL50(H)/51(H)/51C, FTL70/71
24 Endress+Hauser
Non-sparking
Ex nA, Ex nC, Ex tc
In potentially explosive atmospheres: Do not disconnect electrical connections when energized.
Potential equalization
Integrate the device into the local potential equalization.
Explosion protection
with heat insulation
Device type FTL70, FTL71
• While observing the "temperature derating", the device is suitable for process temperatures up to
300 °C.
• When operating, ensure that you rule out contact between hot component surfaces and potentially
explosive atmospheres beyond the limits of the corresponding temperature class.
Suitable measures: e.g. thermal insulation at container and/or pipes.
• The temperature of 85 °C specified at the reference point may not be exceeded.
• To protect the electronics, observe the specified ambient temperature at the electronics housing.
3
4
5
2
1
T
a
T
p
A0025541
 6
T
a
Ambient temperature
T
p
Process temperature
1 Sensor
2 Temperature class, e.g. T6
3 Housing
4 Reference point: max. +85 °C
5 E.g. thermal insulation
Temperature tables Ambient temperature electronics
Temperature
class
Basic specification, Position 7
(Electronics; Output)
Ambient temperature T
a
(ambient)
T6 1, 2 –50 °C ≤ T
a
≤ +60 °C
T5-T2 –50 °C ≤ T
a
≤ +70 °C
T6 4 –50 °C ≤ T
a
≤ +40 °C
T5 –50 °C ≤ T
a
≤ +55 °C
T4-T2 –50 °C ≤ T
a
≤ +70 °C
T6-T2 5, 6, 7, 8 –50 °C ≤ T
a
≤ +70 °C
T6 A, D, 9 –50 °C ≤ T
a
≤ +60 °C
T5-T2 –50 °C ≤ T
a
≤ +70 °C