Endress+Hauser FHG65 Firmware update

Products Solutions Services
Safety Instructions
Gamma Modulator FHG65
ATEX: II 2 G Ex db IIC T5/T6 Gb
II 2 G Ex db eb IIC T5/T6 Gb
II 2 D Ex tb IIIC Txx°C Db
IECEx: Ex db IIC T5/T6 Gb
Ex db eb IIC T5/T6 Gb
Ex tb IIIC Txx°C Db
0
XA00431F-D/00/EN/
15.21
71540145
2021-08-30

Gamma Modulator FHG65 XA00431F-D
Endress+Hauser 3
Gamma Modulator FHG65
Table of contents
About this document .............................................. 4
Associated documentation ......................................... 4
Supplementary documentation ..................................... 4
Manufacturer's certificates ......................................... 4
Manufacturer address ............................................. 5
Other standards ................................................... 5
Extended order code ............................................... 5
Safety instructions: General ........................................ 7
Safety instructions: Special conditions .............................. 7
Safety instructions: Installation .................................... 8
Temperature tables .............................................. 12
Connection data ................................................. 13

XA00431F-D Gamma Modulator FHG65
4 Endress+Hauser
About this
document
This document has been translated into several languages. Legally
determined is solely the English source text.
The document translated into EU languages is available:
• In the download area of the Endress+Hauser website:
www.endress.com -> Downloads -> Manuals and Datasheets ->
Type: Ex Safety Instruction (XA) -> Text Search: …
• In the Device Viewer: www.endress.com -> Product tools ->
Access device specific information -> Check device features
If not yet available, the document can be ordered.
Associated
documentation
This document is an integral part of the following Operating
Instructions:
BA00373F/00
Supplementary
documentation
Explosion-protection brochure: CP00021Z/11
The Explosion-protection brochure is available:
• In the download area of the Endress+Hauser website:
www.endress.com -> Downloads -> Brochures and Catalogs ->
Text Search: CP00021Z
• On the CD for devices with CD-based documentation
Manufacturer's
certificates
EU Declaration of Conformity
Declaration Number:
EG08003
The EU Declaration of Conformity is available:
In the download area of the Endress+Hauser website:
www.endress.com -> Downloads -> Declaration ->
Type: EU Declaration -> Product Code: ...
EU type-examination certificate
Certificate number:
KEMA 08 ATEX 0113 X
List of applied standards: See EU Declaration of Conformity.

Gamma Modulator FHG65 XA00431F-D
Endress+Hauser 5
IEC Declaration of Conformity
Certificate number:
IECEx KEM 08.0021X
Affixing the certificate number certifies conformity with the following
standards (depending on the device version):
• IEC 60079-0 : 2017
• IEC 60079-1 : 2014
• IEC 60079-7 : 2015 / A1: 2017
• IEC 60079-31 : 2013
Manufacturer
address
Endress+Hauser SE+Co. KG
Hauptstraße 1
79689 Maulburg, Germany
Address of the manufacturing plant: See nameplate.
Other standards Among other things, the following standards shall be observed in their
current version for proper installation:
• IEC/EN 60079-14: "Explosive atmospheres - Part 14: Electrical
installations design, selection and erection"
• EN 1127-1: "Explosive atmospheres - Explosion prevention and
protection - Part 1: Basic concepts and methodology"
Extended
order code
The extended order code is indicated on the nameplate, which is affixed
to the device in such a way that it is clearly visible. Additional
information about the nameplate is provided in the associated
Operating Instructions.
Structure of the extended order code
FHG65 – ************* + A*B*C*D*E*F*G*..
(Device
type)
(Basic
specifications)
(Optional
specifications)
* = Placeholder
At this position, an option (number or letter) selected from the
specification is displayed instead of the placeholders.

XA00431F-D Gamma Modulator FHG65
6 Endress+Hauser
Basic specifications
The features that are absolutely essential for the device (mandatory
features) are specified in the basic specifications. The number of
positions depends on the number of features available.
The selected option of a feature can consist of several positions.
Optional specifications
The optional specifications describe additional features for the device
(optional features). The number of positions depends on the number of
features available. The features have a 2-digit structure to aid
identification (e.g. JA). The first digit (ID) stands for the feature group
and consists of a number or a letter (e.g. J = Test, Certificate). The
second digit constitutes the value that stands for the feature within the
group (e.g. A = 3.1 material (wetted parts), inspection certificate).
More detailed information about the device is provided in the following
tables. These tables describe the individual positions and IDs in the
extended order code which are relevant to hazardous locations.
Extended order code: Gamma Modulator
The following specifications reproduce an extract from the product
structure and are used to assign:
• This documentation to the device (using the extended order
code on the nameplate).
• The device options cited in the document.
Device type
FHG65
Basic specifications
Position 1 (Approval)
Selected option Description
FHG65 1 ATEX II 2 G Ex db eb IIC T5/T6 Gb
3 ATEX II 2 G Ex db IIC T5/T6 Gb
5 ATEX II 2 D Ex tb IIIC Db
7 IECEx Ex tb IIIC Db
G IECEx Ex db eb IIC T5/T6 Gb
H IECEx Ex db IIC T5/T6 Gb

Gamma Modulator FHG65 XA00431F-D
Endress+Hauser 7
Position 4 (Cable Entry Power Supply)
Selected option Description
FHG65 A Gland M20
B Thread M20
C Thread G1/2
D Thread NPT1/2
Position 5 (Mounting Device)
Selected option Description
FHG65 1 Level, point level, density
2 Level, point level, density + cooling tube
Optional specifications
No options specific to hazardous locations are available.
Safety
instructions:
General
• Comply with the installation and safety instructions in the Operating
Instructions.
• Staff must meet the following conditions for mounting, electrical
installation, commissioning and maintenance of the device:
• Be suitably qualified for their role and the tasks they perform
• Be trained in explosion protection
• Be familiar with national regulations
• Install the device according to the manufacturer's instructions and
national regulations.
• Do not operate the device outside the specified electrical, thermal and
mechanical parameters.
• Avoid electrostatic charging:
• Of plastic surfaces (e.g. enclosure, sensor element, special
varnishing, attached additional plates, ..)
• Of isolated capacities (e.g. isolated metallic plates)
• Modifications to the device can affect the explosion protection and
must be carried out by staff authorized to perform such work by
Endress+Hauser.
Safety
instructions:
Special conditions
• To avoid electrostatic charging: Do not rub surfaces with a dry cloth.
• In the event of additional or alternative special varnishing on the
enclosure or other metal parts or for adhesive plates:
• Observe the danger of electrostatic charging and discharge.
• Do not install in the vicinity of processes generating strong
electrostatic charges.

XA00431F-D Gamma Modulator FHG65
8 Endress+Hauser
Safety
instructions:
Installation
A
1
2
5
6
3
4
A0038689
 1
A Zone 1, Zone 2 or Zone 21, Zone 22
1 Tank; Zone 0, Zone 1 or Zone 20, Zone 21
2 Connection compartment
3 Power supply
4 Optional: Synchronizer FHG66
5 Modulator FHG65
6 Local potential equalization
• In potentially explosive atmospheres: Do not open the connection
compartment cover when energized.
• Waiting time before opening the connection compartment after
switching off the power supply: 60 minutes.
• At an ambient temperature higher than 70 °C: Cables and cable
glands must be suitable for a temperature of at least 85 °C.
• To maintain the ingress protection of the enclosure IP65/67: Install
the enclosure cover, cable glands and blind plugs correctly.
• Before operation:
• Screw in the cover all the way.
• Tighten the securing clamp on the cover.
• Tighten unused terminal screws.
Basic specification, Position 5 = 2
Use a connecting cable for continuous duty temperature ≥ Ta+20 K.

Gamma Modulator FHG65 XA00431F-D
Endress+Hauser 9
Potential equalization
Integrate the device into the local potential equalization.
Explosion protection "Increased safety Ex eb"
Basic specification, Position 1 = 1, G
L– 18-3 VDC L+5
(2) (1)
(3) (4)
+ SYNC IN –
B
B
B
A0038690
 2
B Screws
• Only use Ex e approved cable glands providing the following
minimum specifications:
• Ingress protection: at least IP65/IP67
• Temperature range: –40 to +100 °C
• Type of protection: Ex eb IIC
• Equipment protection level (EPL): Gb or Ga
• Replace cable glands and sealing plugs only with identical parts.
• Do not open screws [B].
Cross section connecting wire Tightening torque
of terminal screw
Stripped insulation
0.5 to 2.5 mm2≤ 0.8 Nm 6 to 8 mm

XA00431F-D Gamma Modulator FHG65
10 Endress+Hauser
Explosion protection "Flameproof enclosure Ex db"
Basic specification, Position 1 = 3, H
B
B
B
L+ L– + –
(1) (2) (3) (4)
18-35 VDC SYNC IN
A
A
A0038691
 3
A Threaded holes
B Screws
Ex d volume < 1.9 l
• Connect the device:
• Using suitable cable and wire entries of protection type "Flameproof
Enclosure (Ex db)".
• Using piping systems of protection type "Flameproof Enclosure
(Ex db)".
• Seal unused entry glands with approved sealing plugs that correspond
to the type of protection. The plastic transport sealing plug does not
meet this requirement and must therefore be replaced during
installation.
• Only use certified cable entries or sealing plugs. The metal sealing
plugs supplied meet this requirement.
• Only use genuine spare parts from Endress+Hauser which are
specified for the device.
• Do not close threaded holes [A].
• Do not open screws [B].
Basic specification, Position 4 = C
Flameproof equipment with G threaded entry holes is not intended for
new installations but only for replacement of equipment in existing

Gamma Modulator FHG65 XA00431F-D
Endress+Hauser 11
installations. Application of this equipment shall comply with the local
installation requirements.
Safety instructions: Ex d joints
• If required or if in doubt: ask manufacturer for specifications.
• Flameproof joints are not intended to be repaired.
Explosion protection "Equipment dust ignition protection by
enclosure Ex tb"
Basic specification, Position 1 = 5, 7
B
B
B
L+ L– + –
(1) (2) (3) (4)
18-35 VDC SYNC IN
A
A
A0038691
 4
A Threaded holes
B Screws
• Only use Ex approved cable glands providing the following minimum
specifications:
• Ingress protection: at least IP65/IP67
• Temperature range: –40 to +100 °C
• Type of protection: Ex tb IIIC or Ex ta IIIC
• Equipment protection level (EPL): Db or Da
• Do not open in a potentially explosive dust atmosphere.
• Seal unused entry glands with approved sealing plugs that correspond
to the type of protection. The plastic transport sealing plug does not
meet this requirement and must therefore be replaced during
installation.
• Seal the cable entry or piping tight.

XA00431F-D Gamma Modulator FHG65
12 Endress+Hauser
• Connect the device using suitable cable and wire entries of protection
type "Equipment dust ignition protection by enclosure (Ex t)" (ingress
protection of at least IP65). Lay connecting cable and secure.
• Replace cable glands and sealing plugs only with identical parts.
• Do not close threaded holes [A].
• Do not open screws [B].
Temperature
tables
1
2
A0038692
 5
1 Terminal head
2 Enclosure tube
Basic specification, Position 1 = 1, 3, G, H
Type of protection
Device Ex db or Ex db eb
Connection compartment Ex db or Ex eb
Ambient temperature Ta (ambient)
Without water cooling or water cooling out of operation. –40 °C ≤ Ta ≤ +60 °C
With water cooling in operation.
At the enclosure tube (within the water cooling): –40 °C ≤ Ta ≤ +60 °C
At the terminal head: –40 °C ≤ Ta ≤ +75 °C
Temperature class
Without water cooling or water cooling out of operation. T6: –40 °C ≤ Ta ≤ +60 °C
With water cooling in operation. T5: –40 °C ≤ Ta ≤ +75 °C
T6: –40 °C ≤ Ta ≤ +70 °C

Gamma Modulator FHG65 XA00431F-D
Endress+Hauser 13
Basic specification, Position 1 = 5, 7
Type of protection
Device and connection compartment Ex tb
Ambient temperature Ta (ambient)
Without water cooling or water cooling out of operation. –40 °C ≤ Ta ≤ +60 °C
With water cooling in operation.
At the enclosure tube (within the water cooling): –40 °C ≤ Ta ≤ +60 °C
At the terminal head: –40 °C ≤ Ta ≤ +75 °C
Maximum surface temperature
Without water cooling or water cooling out of operation. +90 °C at Ta= +60 °C
With water cooling in operation.
At the terminal head: +105 °C at Ta= +75 °C
Connection data Power supply
(1)
(2)
L+
L–
U = 18 to 35 VDC
P = 3.2 W
Signal circuit SYNC IN (optional)
(3)
(4)
+
–
Only for connection to Synchronizer FHG66
Cable entry parameters
Ex eb IIC, Ex tb IIIC
Cable gland: Basic specification, Position 4 = A
Thread Clamping range Material Sealing insert O-ring
M20x1,5 ø 8 to 10.5 mm 1)
(ø 6.5 to 13 mm) 2)
Ms, nickel-plated Silicone EPDM (ø 17x2)
1) Standard
2) Separate clamping inserts available

XA00431F-D Gamma Modulator FHG65
14 Endress+Hauser
• The tightening torque refers to cable glands installed by the
manufacturer:
• Recommended torque to connect the cable gland into the
enclosure: 3.75 Nm
• Recommended torque to tighten the cable into the cable
gland: 3.5 Nm
• Maximum torque to tighten the cable into the cable gland:
10 Nm
• This value may be different depending on the type of cable.
However, the maximum value must not be exceeded.
• Only suitable for fixed installation. The operator must pay attention
to a suitable strain relief of the cable.
• To maintain the ingress protection of the enclosure: Install the
enclosure cover, cable glands and blind plugs correctly.

www.addresses.endress.com
*71540145*
71540145