Safety Instructions: Zone 0; Safety Instructions: Zone Separation Zone 0, Zone 1; Temperature Tables - Endress+Hauser Liquiphant FTL51B Safety Instruction

XA03005F-A
Safety
instructions:
Zone 0
Safety
instructions:
Zone separation
Zone 0, Zone 1
Temperature
tables
12
Optional specification, ID Px, Rx = PA
Connect the weather protection cover to the local potential
equalization.
When using under non-atmospheric pressures and non-atmospheric
temperatures: The sensor part of the device approved for Zone 0 does
not cause any ignition hazards.
The zone separation wall of the device is made of stainless steel or high
corrosion-resistant alloy of thickness ≥ 1 mm.
Optional specification, ID Jx, Kx = JL
Lower limit of the ambient temperature for explosion protection
changes to –50 °C.
Optional specification, ID Jx, Kx = JN
Lower limit of the ambient temperature for explosion protection
changes to –52 °C.
Optional specification, ID Px, Rx = PB
When using the weather protection cover: Reduce the admissible
ambient temperature by 10 K.
II 1/2 G Ex ia IIC T6...T1 Ga/Gb
• The specified ambient and process temperature ranges
exclusively refer to the explosion protection and must not be
exceeded. Operationally permitted ambient temperature ranges
can be restricted depending on the version: See Operating
Instructions.
• Do not exceed the max. ambient temperature at the enclosure.
Basic specification, Position 5 = A
Temperature class
T6
T5
T4...T1
Process temperature range
–40 °C ≤ T ≤ +75 °C
p
–40 °C ≤ T ≤ +60 °C
p
–40 °C ≤ T ≤ +90 °C
p
–40 °C ≤ T ≤ +120 °C
p
Liquiphant FTL51B
Ambient temperature range
–40 °C ≤ T ≤ +50 °C
a
–40 °C ≤ T ≤ +55 °C
a
–40 °C ≤ T ≤ +55 °C
a
–40 °C ≤ T ≤ +50 °C
a
Endress+Hauser