Endress+Hauser Gammapilot FTG20, Safety Instructions

Page: 4 / 12

IECEx BVS 12.0080 X / XA00617F-A Gammapilot
4 Hauser
Safety instructions:
General • Comply with the installation and safety instructions in the Operating Instructions.
• Install the device according to the manufacturer's instructions and any other valid standards and regulations.
• Do not operate the device outside the specified electrical and thermal parameters.
• Changes in electrical and mechanical parts of the equipment could harm the type of explosion protection
and are not allowed for the user.
• To maintain the ingress protection of the housing, install the housing cover and cable glands correctly.
• Close unused entry glands with sealing plugs.
• Use a connecting cable for continuous duty temperature T

Ta +20 K.
• After aligning (rotating) the housing, retighten the fixing screw (see Operating Instructions) (e.g. secure the
earth connection).
• Install the device to exclude impact and friction sparks on the aluminium housing (F13).
• Connect the sensor and transmitter to the common on-site potential equalization line.
Safety instructions:
Special conditions • Connecting cable between sensor and transmitter:
– Do not install in the vicinity of processes generating strong electrostatic charges.
– Avoid electrostatic charging of the sensor cable (e.g. do not rub dry and install outside the filling flow).
– Do not leave cable hanging loosely when installed.
– If the connecting cable is removed from both the sensor and the transmitter, ensure that measures are
taken to avoid electrostatic discharge in a potentially explosive atmosphere.
Safety instructions:
Installation
FTG20_01
å
1
A Zone 1, Zone 21
FTG20 with electronic insert FEG24 (Relay)
1
Sensor
2 Power supply
3 Transmitter (Ex d or Ex t)
4 Connection cable (Ex ia),
Cable designation: Lapp Ölflex Heat 180 EWKF or Helu Thermflex 180 EWKF-C
5 Potential equalization
FTG20 with electronic insert FEG25 (8/16 mA)
1
Sensor
2 Associated intrinsically safe apparatus [Ex ia]
3 Transmitter (Ex ia)
4 Connection cable (Ex ia),
Cable designation: Lapp Ölflex Heat 180 EWKF or Helu Thermflex 180 EWKF-C
5 Potential equalization
Ingress protection of housing
• Transmitter, F13 housing (aluminium): IP66/67
• Transmitter, F27 housing (stainless steel): IP66/68
• Sensor (stainless steel): IP66/68
5
2
1
3
4
A