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Safety Instructions
XA00617F-A
Safety instructions for electrical apparatus for explosion-hazardous areas
according to IEC standards
Gammapilot
FTG20
Ex d ia IIC T* Gb
Ex d [ia] IIC T* Gb
Ex tb ia IIIC T* Db
Ex tb [ia] IIIC T* Db
IECEx BVS 12.0080 X
XA00617F-A/00/EN/01.12
71204600
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IECEx BVS 12.0080 X / XA00617F-A Gammapilot
2 Endress+Hauser
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Gammapilot IECEx BVS 12.0080 X / XA00617F-A
english
Gammapilot
FTG20
Associated Documentation
Supplementary Documentation
Designation Explanation of the labelling and type of protection can be found in the explosion protection brochure.
This document is an integral part of the following Operating Instructions:
BA01035F/00
The Operating Instructions which are supplied and correspond to the device type apply.
Explosion-protection brochure:
CP021Z/00
Designation according to IECEx
Equipment protection level (EPL) Gb
Designation of explosion protection Ex d ia IIC T* Gb
Ex d [ia] IIC T* Gb
T* ä 6
Designation according to IECEx
Equipment protection level (EPL) Db
Designation of explosion protection Ex tb ia IIIC T* Db
Ex tb [ia] IIIC T* Db
Applied standards
T* ä 6
IEC 60079-0 :2011
IEC 60079-1 :2007
IEC 60079-11 :2012
IEC 60079-31 :2008
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IECEx BVS 12.0080 X / XA00617F-A Gammapilot
5
2
1
3
4
A
Safety instructions: General
Safety instructions: Special conditions
Safety instructions: Installation
• 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.
• 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.
FTG20_01
å 1
A Zone 1, Zone 21
FTG20 with electronic insert FEG24 (Relay)
1Sensor
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)
1Sensor
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
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Gammapilot IECEx BVS 12.0080 X / XA00617F-A
Instructions: Ex d joints
Safety instructions: Zone 1
Safety instructions: Zone 21
Specification according to IEC/EN 60079-1:2007, Chapter 5.1
• If required or if doubt: ask manufacturer for specifications.
Gammapilot with FEG24
• Connect the device using suitable cable and wire entries or using piping systems of protection type
"Pressure-tight Enclosure d".
• Close unused entry glands with approved (Ex d) sealing plugs.
The plastic sealing plug is used only as transport protection.
• Transmitter housing: Do not open in a potentially explosive atmosphere.
• During operation, the cover must be screwed all the way in and the cover's safety catch must be fastened.
• Replace sealing plugs only with identical parts.
• Lay connecting cable to the transmitter and secure.
• The instrinsically safe signal circuit to the sensor is galvanically isolated from other circuits up to a peak value
of the nominal voltage of 375 V.
• Connect the device using suitable cable and wire entries or using piping systems.
• Only use suitable cable glands for Zone 21 with degree of protection IP68, which are suitable for an ambient
temperature of at least –40 °C...+70 °C.
• Close unused entry glands with approved sealing plugs.
The plastic sealing plug is used only as transport protection.
• Lay connecting cable to the transmitter and secure.
• Transmitter housing: Do not open in a potentially explosive dust atmosphere.
• Replace cable glands and sealing plugs only with identical parts.
• The instrinsically safe signal circuit to the sensor is galvanically isolated from other circuits up to a peak value
of the nominal voltage of 375 V.
Safety instructions: Zone 1, Zone 21
Safety instructions: Zone 21, Zone 22
Gammapilot with FEG25
• The pertinent guidelines must be observed when intrinsically safe circuits are connected together acc.
EN 60079-14 (Proof of Intrinsic Safety).
• The intrinsically safe input power circuit of the device is isolated from ground potential and has a dielectric
strength of at least 500 V
with respect to it.
rms
• The intrinsically safe signal circuit of the sensor is isolated from ground potential and has a dielectric strength
of at least 500 V
with respect to it.
rms
• When the device is connected to an intrinsically safe circuit Ex ib, the level of protection changes to Ex ib.
• When the device is connected to an intrinsically safe circuit Ex ic, the level of protection changes to Ex ic.
Do not operate intrinsically safe circuits Ex ic in zone 1 or zone 21.
• For service operations, the transmitter housing may be opened under voltage for a short time.
If the terminal compartment is opened make sure that no dust may deposit.
After configuration close the cover according to good professional practice.
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IECEx BVS 12.0080 X / XA00617F-A Gammapilot
FTG20 with electronic insert FEG24 (Relay)
Designation
Gammapilot FTG20
Ex d [ia] IIC T6 Gb
Ex d [ia] IIC T4 Gb
Ex tb [ia] IIIC T90°C Db
Ex tb [ia] IIIC T125°C Db
Designation
Gammapilot FTG20
Ex d ia IIC T6...T4 Gb
Ex d ia IIC T4 Gb
Ex tb ia IIIC T75°C Db
Ex tb ia IIIC T125°C Db
Type of protection Temperature class/surface temperature/
ambient temperature range
Transmitter Sensor . Transmitter Sensor Sensor
Housing Housing Signal circuit
T6
Ex d Ex d Ex ia
Ex tb Ex tb Ex ia
T6
for Ta = –40 °C…70 °C
T90°C
for Ta = –40 °C…70 °C
for Ta = –40 °C… 70 °C
T4
for Ta = –40 °C…120 °C
T75°C
for Ta = –40 °C… 70 °C
T125°C
for Ta = –40 °C…120 °C
Operating condition
Without water cooling
or water cooling out of
operation
With water cooling
in operation
Without water cooling
or water cooling out of
operation
With water cooling
in operation
FTG20 with electronic insert FEG25 (8/16 mA)
Type of protection Temperature class/surface temperature/
ambient temperature range
Transmitter Sensor . Transmitter Sensor Sensor
Housing Housing Signal circuit
T6
for Ta = –40 °C… 70 °C
T4
for Ta = –40 °C…120 °C
T75°C
for Ta = –40 °C… 70 °C
T125°C
for Ta = –40 °C…120 °C
Ex ia Ex d Ex ia
Ex ia Ex tb Ex ia
T6
for Ta = –40 °C…40 °C
T4
for Ta = –40 °C…70 °C
T75°C
for Ta = –40 °C…70 °C
Operating condition
Without water cooling
or water cooling out of
operation
With water cooling
in operation
Without water cooling
or water cooling out of
operation
With water cooling
in operation
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Gammapilot IECEx BVS 12.0080 X / XA00617F-A
2
1
12 345678
2
1
12
Connection data Transmitter
Electronic insert FEG24 (Relais)
Power supply terminal 1, 2:
19…253 VAC
19…55 VDC
Um = 253 VAC
Terminal 3, 4, 5 and 6, 7, 8 relay contacts:
253 VAC, 4 A
1000 VA (cos = 1), 750 VA (cos = 0.7)
or
30 VDC, 4 A
125 VDC, 0.2 A
FTG20_02
å 2
1 Terminals
2 Potential equalization
Electronic insert FEG25 (8/16 mA)
Terminal 1, 2:
Ui = 30 V
Ii = 100 mA
Pi = 1 W
Ci = 2.4 nF
Li = 0
å 3
1Terminal
2 Potential equalization
FTG20_03
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IECEx BVS 12.0080 X / XA00617F-A Gammapilot
1
2
+–
(RD) (BK)+–(RD) (BK)
2
1
+–
(BU) (BN)
Sensor
Sensor with plug connector
Ui = 9.77 V
Ii = 26.7 mA
Pi = 78.5 mW
Only for connection to Gammapilot FTG20 with
electronic insert FEG24 or FEG25
FTG20_04
å 4
1 Supplied cable with coded plug connectors
2 Potential equalization
Sensor with connection compartment
Ui = 9.77 V
Ii = 26.7 mA
Pi = 78.5 mW
Only for connection to Gammapilot FTG20 with
electronic insert FEG24 or FEG25
FTG20_05
å 5
1Terminal
2 Potential equalization
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Gammapilot IECEx BVS 12.0080 X / XA00617F-A
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IECEx BVS 12.0080 X / XA00617F-A Gammapilot
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Gammapilot IECEx BVS 12.0080 X / XA00617F-A
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www.endress.com/worldwide
XA00617F-A/00/EN/01.12
71204600
71204600
CCS/FM 9.0
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