Endress+Hauser Gammapilot FMG50 User manual

Products Solutions Services
Operating Instructions
Gammapilot FMG50
Radiometric measurement
BA01966F/00/EN/01.19
71449391
2019-08-01

Gammapilot FMG50
2 Endress+Hauser
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.
A0023555

Gammapilot FMG50 Contents of these Operating Instructions
Endress+Hauser 3
Contents of these Operating Instructions
These Operating Instructions describe how to install and commission the radiometric
compact transmitter Gammapilot FMG50. All of the functions that are necessary for
standard measuring tasks are included. In addition, the Gammapilot FMG50 provides
many additional functions for optimizing the measuring point and for converting the
measured value. These functions are not described in these Operating Instructions.

Gammapilot FMG50 Table of contents
Endress+Hauser 5
Table of contents
1 About this document ................ 7
1.1 Document function ..................... 7
1.2 Symbols used .......................... 7
1.2.1 Safety symbols .................. 7
1.2.2 Symbols for
certain types of information and graphics 7
1.3 Documentation ........................ 8
1.3.1 Technical Information (TI) ......... 8
1.3.2 Brief Operating Instructions (KA) ..... 8
1.3.3 Safety Instructions (XA) ............ 9
1.4 Terms and abbreviations ................. 9
1.5 Registered trademarks ................... 9
2 Basic safety instructions ........... 10
2.1 Requirements for personnel .............. 10
2.2 Designated use ....................... 10
2.3 Installation, commissioning and operation ... 10
2.4 Hazardous area ....................... 11
2.5 Radiation protection ................... 11
2.5.1 Basic radiation protection
guidelines ..................... 11
2.6 Workplace safety ...................... 12
2.7 Operational safety ..................... 12
2.8 Product safety ........................ 12
2.8.1 CE mark ...................... 13
2.8.2 EAC conformity ................. 13
3 Product description ................ 14
3.1 Product design ........................ 14
3.1.1 Components of the FMG50 ........ 14
3.2 Nameplates .......................... 15
3.2.1 Device nameplate ............... 15
3.3 Scope of delivery ...................... 15
3.4 Accompanying documentation ............ 15
3.4.1 Brief Operating Instructions ....... 15
3.4.2 Description of Device Functions ..... 16
3.4.3 Safety instructions ............... 16
4 Mounting ......................... 17
4.1 Incoming acceptance, product identification,
transport, storage ..................... 17
4.1.1 Incoming acceptance ............. 17
4.1.2 Product identification ............ 17
4.1.3 Manufacturer address ............ 17
4.1.4 Transporting to the measuring
point ......................... 17
4.1.5 Storage ....................... 17
4.2 Installation conditions .................. 18
4.2.1 General information ............. 18
4.2.2 Dimensions, weights ............. 18
4.2.3 Installation conditions for level
measurement .................. 19
4.2.4 Installation conditions for point level
detection ..................... 20
4.2.5 Installation conditions for density
measurement .................. 20
4.2.6 Installation conditions for interface
measurement .................. 21
4.2.7 Installation conditions for density
profile measurement (DPS) ........ 22
4.2.8 Installation conditions for
concentration measurement ....... 22
4.2.9 Installation conditions for
concentration measurement with
radiating media ................. 23
4.2.10 Installation conditions for flow
measurement .................. 23
4.3 Post-installation check .................. 24
5 Electrical connection .............. 25
5.1 Connection compartment ................ 25
5.2 4 to 20 mA HART connection ............. 25
5.3 Terminal assignment ................... 26
5.4 Cable entries ......................... 26
5.5 Potential equalization .................. 26
5.6 Rated cross-section .................... 27
5.7 Fieldbus connectors .................... 27
5.7.1 Pin assignment for connector M12-
A........................... 27
5.7.2 Connection of devices with Harting
plug Han7D .................... 28
5.8 FMG50 with RIA15 .................... 29
5.8.1 Connection of the HART device and
RIA15 without backlighting ........ 29
5.8.2 Connection of the HART device and
RIA15 with backlighting .......... 30
5.8.3 FMG50, RIA15 with installed HART
communication resistor module ..... 30
5.9 Wiring ............................. 31
5.10 Wiring examples for point level detection ... 31
5.10.1 Wiring example for cascade mode ... 32
5.10.2 Ex applications in conjunction with
RMA42 ....................... 34
5.10.3 SIL applications for Gammapilot in
connection with RMA42 .......... 34
5.11 Post-connection check .................. 34
6 Operation ......................... 35
6.1 Overview of the HART operating options .... 35
6.1.1 Via HART protocol ............... 35
6.1.2 Operation via FieldCare/DeviceCare .. 35
6.1.3 Operation via RIA 15 (remote
display) ....................... 35
6.1.4 Operation via WirelessHART ....... 35
6.2 Alternative operation options ............. 36
6.2.1 Local operation ................. 36

Table of contents Gammapilot FMG50
6 Endress+Hauser
6.2.2 Operation via the service interface ... 36
6.2.3 Operation via RIA15 ............. 37
6.2.4 Operation via Bluetooth® wireless
technology .................... 37
6.2.5 Heartbeat Verification/Monitoring .. 38
6.3 Locking/unlocking configuration .......... 38
6.3.1 Software locking ................ 38
6.3.2 Hardware locking ............... 38
6.4 Resetting to the default configuration ....... 39
7 Commissioning .................... 40
7.1 Post-installation and post-connection check .. 40
7.2 Commissioning using the Commissioning
Wizard ............................. 40
7.2.1 Linearization ................... 40
7.3 Commissioning via SmartBlue (App) ........ 42
7.3.1 Requirements .................. 42
7.3.2 SmartBlue app ................. 42
7.4 Commissioning via on-site operation ....... 42
7.4.1 Status and power LEDs ........... 43
7.5 Operation and settings via RIA15 .......... 44
7.6 Data access - Security ................... 44
7.6.1 Locking via password in FieldCare /
DeviceCare / Smartblue ........... 44
7.6.2 Hardware locking ............... 44
7.6.3 Bluetooth® wireless technology
(optional) ..................... 44
7.6.4 RIA15 locking .................. 44
7.7 Overview of the operating menu ........... 44
8 Diagnostics and troubleshooting ... 45
8.1 System error messages .................. 45
8.1.1 Error signal .................... 45
8.1.2 Types of error .................. 45
8.2 Possible calibration errors ............... 45
8.3 Error - SmartBlue operation .............. 46
8.4 Diagnostic event ...................... 47
8.4.1 Diagnostic event in the operating
tool .......................... 47
8.4.2 List of diagnostic events in the
operating tool .................. 47
8.4.3 Displaying the diagnostic events .... 49
8.5 Diagnostic event on the RIA15 ............ 50
8.6 Gammagraphy ........................ 50
8.6.1 General principles ............... 50
8.6.2 Reaction to detected gammagraphy
radiation ...................... 50
8.6.3 Gammagraphy detection limits and
behavior in event of excess
radiation ...................... 51
8.6.4 Gammagraphy settings ........... 51
8.6.5 Gammagraphy detection parameter .. 51
8.6.6 Gammagraphy hold time parameter .. 52
8.6.7 Gammagraphy limit parameter ..... 52
8.6.8 Gammagraphy sensitivity
parameter ..................... 52
9 Maintenance and repair ........... 53
9.1 Cleaning ............................ 53
9.2 Repair .............................. 53
9.2.1 Repair concept ................. 53
9.2.2 Repairs to Ex- or SIL-certified
devices ....................... 53
9.3 Replacement ......................... 53
9.3.1 Level measurement and point level
detection ..................... 53
9.3.2 Density and concentration
measurement .................. 53
9.3.3 HistoROM ..................... 54
9.4 Spare parts .......................... 54
9.5 Return .............................. 54
9.6 Disposal ............................ 54
9.6.1 Battery ....................... 54
9.7 Contact addresses at Endress+Hauser ....... 55
10 Accessories ....................... 56
10.1 Commubox FXA195 HART ............... 56
10.2 Field Xpert SFX350, SFX370, SMT70 ....... 56
10.3 Mounting device (for level and point level
measurement) ........................ 57
10.3.1 Mounting the bracket ............ 57
10.3.2 Mounting instructions ............ 57
10.3.3 Use .......................... 60
10.4 Clamping device for density measurement (in
preparation) ......................... 61
10.5 Process indicator RIA15 ................ 61
10.5.1 HART communication resistor ...... 61
11 Technical data .................... 62
11.1 Additional technical data ................ 62
11.2 Supplementary documentation ............ 62
11.2.1 Modulator FHG65 ............... 62
11.2.2 Source container FQG60 .......... 62
11.2.3 Source container FQG61, FQG62 .... 62
11.2.4 Source container FQG61, FQG62 .... 62
11.2.5 Source container FQG66 .......... 62
12 Certificates and approvals ......... 63
12.1 Safety Manual (SIL 2/3) ................. 63
12.2 Ex approval .......................... 63
12.2.1 Explosion-protected smartphones
and tablets .................... 63
12.3 Other standards and guidelines ........... 63
12.4 Certificates .......................... 63
12.5 CE mark ............................ 63
12.6 EAC ............................... 63
12.7 Overfill protection ..................... 64

Gammapilot FMG50 About this document
Endress+Hauser 7
1 About this document
1.1 Document function
These Operating Instructions provide all of the information that is required in various
phases of the life cycle of the device including:
• Product identification
• Incoming acceptance
• Storage
• Installation
• Connection
• Operation
• Commissioning
• Troubleshooting
• Maintenance
• Disposal
1.2 Symbols used
1.2.1 Safety symbols
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
1.2.2 Symbols for certain types of information and graphics
Warns against radioactive substances or ionizing radiation
Permitted
Procedures, processes or actions that are permitted
Preferred
Procedures, processes or actions that are preferred
Forbidden
Procedures, processes or actions that are forbidden
Tip
Indicates additional information

About this document Gammapilot FMG50
8 Endress+Hauser
Reference to documentation
A
Reference to page
Reference to graphic
Notice or individual step to be observed
1.
,
2.
,
3.
Series of steps
Result of a step
Operation via local display
Operation via operating tool
Write-protected parameter
1, 2, 3, ...
Item numbers
A, B, C, ...
Views
Safety instructions
Observe the safety instructions contained in the associated Operating Instructions
1.3 Documentation
The following documentation types are available in the Downloads area of the Endress
+Hauser website (www.endress.com/downloads):
For an overview of the scope of the associated Technical Documentation, refer to the
following:
•W@M Device Viewer (www.endress.com/deviceviewer): Enter the serial number
from nameplate
•Endress+Hauser Operations App: Enter the serial number from the nameplate or
scan the 2D matrix code (QR code) on the nameplate
1.3.1 Technical Information (TI)
Planning aid
The document contains all the technical data on the device and provides an overview of
the accessories and other products that can be ordered for the device.
1.3.2 Brief Operating Instructions (KA)
Guide that takes you quickly to the 1st measured value
The Brief Operating Instructions contain all the essential information from incoming
acceptance to initial commissioning.

Gammapilot FMG50 About this document
Endress+Hauser 9
1.3.3 Safety Instructions (XA)
Depending on the approval, the following Safety Instructions (XA) are supplied with the
device. They are an integral part of the Operating Instructions.
The nameplate indicates the Safety Instructions (XA) that are relevant to the device.
1.4 Terms and abbreviations
FieldCare
Scalable software tool for device configuration and integrated plant asset management
solutions
DeviceCare
Universal configuration software for Endress+Hauser HART, PROFIBUS,
FOUNDATION Fieldbus and Ethernet field devices
DTM
Device Type Manager
Operating tool
The term "operating tool" is used in place of the following operating software:
• FieldCare / DeviceCare, for operation via HART communication and PC
• SmartBlue (app), for operation using an Android or iOS smartphone or tablet
CDI
Common Data Interface
PLC
Programmable logic controller (PLC)
1.5 Registered trademarks
HART®
Registered trademark of the FieldComm Group, Austin, Texas, USA
Apple®
Apple, the Apple logo, iPhone, and iPod touch are trademarks of Apple Inc., registered in
the U.S. and other countries. App Store is a service mark of Apple Inc.
Android®
Android, Google Play and the Google Play logo are trademarks of Google Inc.
Bluetooth®
The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth
SIG, Inc. and any use of such marks by Endress+Hauser is under license. Other trademarks
and trade names are those of their respective owners.

Basic safety instructions Gammapilot FMG50
10 Endress+Hauser
2 Basic safety instructions
2.1 Requirements for personnel
The personnel for installation, commissioning, diagnostics and maintenance must fulfill
the following requirements:
• Trained, qualified specialists must have a relevant qualification for this specific function
and task
• Are authorized by the plant owner/operator
• Are familiar with federal/national regulations
• Before beginning work, the specialist staff must have read and understood the
instructions in the Operating Instructions and supplementary documentation as well as
in the certificates (depending on the application)
• Following instructions and basic conditions
The operating personnel must fulfill the following requirements:
• Being instructed and authorized according to the requirements of the task by the
facility's owner-operator
• Following the instructions in these Operating Instructions
2.2 Designated use
The Gammapilot FMG50 is a compact transmitter for non-contact level, point level,
density and concentration measurement. The measuring range is up to 3 m (9.8 ft). The
Gammapilot FMG50 is certified according to IEC 61508 for safety-related operation up to
SIL 2/3.
2.3 Installation, commissioning and operation
The Gammapilot FMG50 is designed to meet state-of-the-art safety requirements and
complies with applicable standards and EU regulations. However, if it is used improperly or
for applications for which it is not intended, application-related hazards may arise, e.g.
product overflow due to incorrect installation or configuration. Installation, electrical
connection, commissioning, operation and maintenance of the measuring system must
therefore be carried out exclusively by trained specialists authorized to perform such work
by the system operator. Technical personnel must have read and understood these
Operating Instructions and must adhere to them. Modifications and repairs to the device
may only be carried out if they are expressly permitted in the Operating Instructions.
LWARNING
‣The four screws connecting the detector pipe to the terminal head may not be opened.
A0038007

Gammapilot FMG50 Basic safety instructions
Endress+Hauser 11
2.4 Hazardous area
If the measuring system is used in hazardous areas, the corresponding national standards
and regulations must be observed. The device is accompanied by separate "Ex
documentation", which is an integral part of these Operating Instructions. The installation
specifications, connection data and safety instructions listed in this supplementary
documentation must be observed.
• Technical personnel must be qualified and trained for the hazardous area.
• Comply with the metrological and safety-related requirements for the measuring point.
LWARNING
‣Observe the safety instructions associated with the device. These instructions depend
on the certificate ordered.
2.5 Radiation protection
The Gammapilot FMG50 is used in conjunction with a radiation source, contained in a
source container. When handling radiation sources, the following instructions must be
observed:
2.5.1 Basic radiation protection guidelines
LWARNING
‣When working with radiation sources, avoid any unnecessary exposure to radiation. All
unavoidable radiation exposure must be kept to a minimum. Three basic concepts apply
to achieve this:
ABC
A0016373
A Shield
B Time
C Distance
LCAUTION
‣When working with source containers, all the instructions for mounting and usage
outlined in the following documents must be observed:
Source container documentation
•FQG60:
TI00445F
•FQG61, FQG62:
TI00435F
•FQG63:
TI00446F
•FQG66:
• TI01171F
• BA01327F

Basic safety instructions Gammapilot FMG50
12 Endress+Hauser
Shielding
Ensure the best possible shielding between the radiation source and yourself and all other
persons. Effective shielding is provided by source containers (FQG60, FQG61/
FQG62,FQG63, FQG66) and all high-density materials (lead, iron, concrete etc.).
Time
Remain as short as possible in the area exposed to radiation.
Distance
Keep as far away from the radiation source as possible. The radiation intensity decreases
in proportion to the square of the distance from the radiation source.
2.6 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to federal/national
regulations.
‣Switch off the supply voltage before connecting the device.
2.7 Operational safety
Risk of injury.
‣Operate the device in proper technical condition and fail-safe condition only.
‣The operator is responsible for interference-free operation of the device.
Conversions to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers.
‣If, despite this, modifications are required, consult with the manufacturer.
Repair
To ensure continued operational safety and reliability,
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe federal/national regulations pertaining to repair of an electrical device.
‣Use original spare parts and accessories from the manufacturer only.
Hazardous area
To eliminate a danger for persons or for the facility when the device is used in the
hazardous area (e.g. explosion protection, pressure vessel safety):
‣Based on the nameplate, check whether the ordered device is permitted for the
intended use in the hazardous area.
‣Observe the specifications in the separate supplementary documentation that is an
integral part of these Instructions.
2.8 Product safety
This measuring device is designed in accordance with good engineering practice to meet
state-of-the-art safety requirements, has been tested, and left the factory in a condition in
which it is safe to operate. It meets general safety standards and legal requirements.

Gammapilot FMG50 Basic safety instructions
Endress+Hauser 13
2.8.1 CE mark
The measuring system meets the legal requirements of the applicable EU Directives. These
are listed in the corresponding EU Declaration of Conformity along with the standards
applied.
Endress+Hauser confirms successful testing of the device by affixing to it the CE mark.
2.8.2 EAC conformity
The measuring system meets the legal requirements of the applicable EAC guidelines.
These are listed in the corresponding EAC Declaration of Conformity together with the
standards applied.
Endress+Hauser confirms successful testing of the device by affixing to it the EAC mark.

Product description Gammapilot FMG50
14 Endress+Hauser
3 Product description
3.1 Product design
3.1.1 Components of the FMG50
1
2
3
4
A0037983
 1 A: Gammapilot FMG50
1 Housing
2 Potential equalization terminal
3 Detector pipe
4 Measuring range marking

Gammapilot FMG50 Product description
Endress+Hauser 15
3.2 Nameplates
3.2.1 Device nameplate
Ord.cd.:
Ser.no.:
Ext.ord.cd.:
Scintillator:
FW:
HW:
L:
1
23
4
5
6
7
8
9
10
11
12
14
13
A0039777
1 Manufacturer's address and device name
2 Order code
3 Serial number (ser. no.)
4 Extended order code (ext. ord. cd.)
5 Signal outputs
6 Supply voltage
7 Length of measuring range
8 Scintillator type
9 Certificate and approval-related data
10 Firmware version (FW)
11 Device revision (Dev.Rev.)
12 Temperature specifications for connecting cable
13 Permitted ambient temperature (Ta), reference to documentation
14 Date of manufacture: year-month and 2-D matrix code (QR code)
3.3 Scope of delivery
• Ordered version of the device (including Brief Operating Instructions)
• Endress+Hauser operating program on DVD (optional)
• Accessories as ordered
3.4 Accompanying documentation
3.4.1 Brief Operating Instructions
The Brief Operating Instructions describe how to install and commission the Gammapilot
FMG50.
KA01427F
Any additional functions are contained in the Operating Instructions and the "Description
of Device Functions" document

Product description Gammapilot FMG50
16 Endress+Hauser
3.4.2 Description of Device Functions
The Description of Device Functions document contains a detailed description of all the
functions of the Gammapilot FMG50 and applies for all communication versions. Available
for download at "www.de.endress.com".
GP01141F
3.4.3 Safety instructions
Additional safety instructions (XA, ZE, ZD) are supplied with certified device versions.
Please refer to the nameplate for the safety instructions that apply to your device version.
An overview of the certificates and approvals can be found in the "Certificates and
approvals" section.

Gammapilot FMG50 Mounting
Endress+Hauser 17
4 Mounting
4.1 Incoming acceptance, product identification,
transport, storage
4.1.1 Incoming acceptance
Check the following during incoming acceptance:
 Are the order codes on the delivery note and the product sticker identical?
 Are the goods undamaged?
 Do the nameplate data match the ordering information on the delivery note?
 If required (see nameplate): Are the safety instructions (XA) provided?
If one of these conditions is not met, please contact the manufacturer's sales office.
4.1.2 Product identification
The following options are available for the identification of the measuring device:
• Nameplate specifications
• Extended order code with breakdown of the device features on the delivery note
‣Enter the serial number from the nameplates into W@M Device Viewer
(www.endress.com/deviceviewer)
 All the information about the measuring device and the scope of the associated
Technical Documentation are displayed.
‣Enter the serial number from the nameplate into the Endress+Hauser Operations App
or use the Endress+Hauser Operations App to scan the 2-D matrix code (QR Code)
provided on the nameplate
 All the information about the measuring device and the scope of the associated
Technical Documentation are displayed.
4.1.3 Manufacturer address
Endress+Hauser SE+Co. KG
Hauptstraße 1
79689 Maulburg, Germany
Address of the manufacturing plant: See nameplate.
4.1.4 Transporting to the measuring point
LCAUTION
Risk of injury
‣Follow the safety instructions and transport conditions for devices weighing more than
18 kg (39.69 lb).
4.1.5 Storage
Pack the device so that it is protected against impact for storage and transport. The
original packaging provides optimum protection. The permitted storage temperature is:
NaI (Tl) crystal
–40 to +80 °C (–40 to +176 °F)

Mounting Gammapilot FMG50
18 Endress+Hauser
PVT scintillator (standard)
–40 to +60 °C (–40 to +140 °F)
PVT scintillator (high-temperature version)
–20 to +80 °C (–4 to +176 °F)
As the device contains a battery, it is recommended to store the device at room
temperature in a location that does not receive direct sunlight
4.2 Installation conditions
4.2.1 General information
• The angle of emission of the source container must be exactly aligned to the measuring
range of the Gammapilot FMG50. Observe the measuring range marks of the device.
• The source container and the Gammapilot FMG50 should be mounted as close to the
vessel as possible. Any access to the beam must be blocked to ensure that it is not
possible to reach into this area.
• The Gammapilot FMG50 should be protected against direct sunlight or process heat in
order to increase its service life.
• Option: "Weather protection cover"
• Option: "Heat shield for the sensor"
• Clamps are optionally supplied with the device.
• The mounting device must be installed in such a way as to withstand the weight of the
Gammapilot FMG50 under all anticipated operating conditions (e.g. vibrations).
More information with regard to the safety-related use of the Gammapilot FMG50
can be found in the Functional Safety Manual.
4.2.2 Dimensions, weights
Gammapilot FMG50
143×118
(5.63×4.65)
A
Ø85 (3.35)
B
248 (9.76)
A0037984
• Version NaI (Tl) 2" :
Total length A: 430 mm (16.93 in), weight: 11.60 kg (25.57 lb)
• Version NaI (Tl) 4" :
Total length A: 480 mm (18.90 in), weight: 12.19 kg (26.87 lb)
• Version PVT 200 :
Total length A: 590 mm (23.23 in), weight: 12.10 kg (26.68 lb)
• Version PVT 400 :
Total length A: 790 mm (31.10 in), weight: 13.26 kg (29.23 lb)
• Version PVT 800 :
Total length A: 1 190 mm (46.85 in), weight: 15.54 kg (34.26 lb)

Gammapilot FMG50 Mounting
Endress+Hauser 19
• Version PVT 1200 :
Total length A: 1 590 mm (62.60 in), weight: 17.94 kg (39.55 lb)
• Version PVT 1600 :
Total length A: 1 990 mm (78.35 in), weight: 20.14 kg (44.40 lb)
• Version PVT 2000 :
Total length A: 2 390 mm (94.09 in), weight: 22.44 kg (49.47 lb)
• Version PVT 2400 :
Total length A: 2 790 mm (109.84 in), weight: 24.74 kg (54.54 lb)
• Version PVT 3000 :
Total length A: 3 390 mm (133.46 in), weight: 28.14 kg (62.04 lb)
The weight data refer to the stainless steel housing versions. The aluminum housing
versions are 2.5 kg (5.51 lb) lighter.
The additional weight for small parts is: 1 kg (2.20 lb)
4.2.3 Installation conditions for level measurement
Conditions
• The Gammapilot FMG50 is mounted vertically for level measurements.
• When the Gammapilot FMG50 is installed upside-down, it can be given additional
support (retaining bracket) to prevent damage to the connecting cable or to the unit if it
falls.
Examples
A
D E
C
B
A0037715
A Vertical cylinder; the Gammapilot FMG50 is mounted vertically with the detector head pointing either
downwards or upwards, the gamma ray is aligned to the measuring range.
B Correct: Gammapilot FMG50 mounted outside the tank insulation
C Incorrect: Gammapilot FMG50 mounted inside the tank insulation
D Conical vessel outlet
E Horizontal cylinder

Mounting Gammapilot FMG50
20 Endress+Hauser
4.2.4 Installation conditions for point level detection
Conditions
For point level detection, the Gammapilot FMG50 is generally mounted horizontally at the
height of the desired level limit.
Measuring system arrangement
AB
A0018075
A Maximum point level detection
B Minimum point level detection
4.2.5 Installation conditions for density measurement
Conditions
• If possible, density should be measured on vertical pipes with forward flow from bottom
to top.
• If only horizontal pipes are accessible, the path of the beam should also be arranged
horizontally to minimize the influence of air bubbles and deposits.
• The Endress+Hauser clamping device or an equivalent clamping device should be used to
fasten the source container and the Gammapilot FMG50 to the measuring pipe.
The clamping device itself must be installed in such a way as to withstand the weight of
the source container and the Gammapilot FMG50 under all anticipated operating
conditions.
• The sample point may not be further than 20 m (66 ft) from the measuring point.
• The distance of the density measurement to pipe bends is ≥3 x pipe diameter, and ≥10 x
pipe diameter in the case of pumps.
Measuring system arrangement
The arrangement of the source container and the Gammapilot FMG50 depends on the
pipe diameter (or the radiated length) and the density measuring range. These two
parameters determine the measuring effect (relative change in the pulse rate). The longer
the radiated length, the greater the measuring effect. Therefore, it is advisable to use
diagonal irradiation or a measurement section for small pipe diameters.
To select the measuring system arrangement please contact your Endress+Hauser sales
organization or use the Applicator™ 1)
1) configuration software. The Applicator™ is available from your Endress+Hauser sales organization.