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

XA01810F-C
Safety
instructions:
Zone 0
Safety
instructions:
Zone separation
Zone 0, Zone 1
14
Accessory high pressure sliding sleeve
The high pressure sliding sleeve can be used for a continuous setting of
the switch point and is suited for zone separation if mounted properly
(see Operating Instructions).
Intrinsic safety
• The device is only suitable for connection to certified, intrinsically
safe equipment with explosion protection Ex ia / Ex ib.
• The intrinsically safe input power circuit of the device is isolated from
ground. The dielectric strength is at least 500 V
Potential equalization
Integrate the device into the local potential equalization.
Optional specification, ID Px, Rx = PA
Connect the weather protection cover to the local potential
equalization.
Bluetooth® module
Basic specification, Position 3, 4 = A7
If the device is equipped with the Bluetooth® module, no battery is
required or allowed.
Basic specification, Position 3, 4 = A8
• If the device is equipped with the Bluetooth® module, a battery is
required.
• Removal or replacement of the battery is only permitted in non-
hazardous areas.
• Observe the information in the Safety Instructions (XA) included with
the Bluetooth® module.
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.
Device type FTL51B, FTL63 with Basic specification, Position 9 = A
The zone separation wall of the device is made of stainless steel or high
corrosion-resistant alloy of thickness ≥ 1 mm.
Device type FTL63 with Basic specification, Position 9 = B, D, E
• The zone partition wall of the device is made of stainless steel or a
highly corrosion-resistant alloy of thickness from 0.2 to 1 mm.
• The probe must not be subjected to abrasive or corrosive medium that
may adversely affect the partition for the zone separation.
Liquiphant FTL51B, FTL63
.
rms
Endress+Hauser