Endress+Hauser FMR62 Specifications

TI01303F/00/EN/04.18 71394729 2018-04-12

Products

Solutions Services

Technical Information

Micropilot FMR62

Free space radar

Level measurement in liquids

Application

• Continuous, non-contact level measurement of liquids, pastes and sludges

• Integrated PEEK antenna or PTFE-plated, flush-mounted antenna

• Maximum measuring range: 80 m (262 ft)

• Temperature: –40 to +200 °C (–40 to +392 °F)

• Pressure: –1 to +25 bar (–14.5 to +362.6 psi)

• Accuracy: ± 1 mm (0.04 in)

• Linearity protocol (3-point, 5-point)

Your benefits

• Reliable measurement thanks to improved focusing and small beam angle, particularly in vessels with many internal fittings

• Compact design enables installation in the case of small vessels and small process connections

• Safety by design - ensures highest safety

• Easy, guided commissioning with intuitive user interface

• Bluetooth® wireless technology for commissioning, operation and maintenance via free iOS / Android app SmartBlue

• Maximum reliability thanks to multi-echo tracking

• HistoROM configuration memory makes for easier commissioning, maintenance and diagnostics

• SIL2 as per IEC 61508, SIL3 for homogeneous or diverse redundancy

• Easy proof testing for SIL and WHG

• RFID TAG - easy identification of measuring points for improved data access

• Heartbeat Technology

Micropilot FMR62

Important document information ............... 4

Safety symbols ............................... 4

Electrical symbols ............................. 4

Symbols for certain types of information .............. 4

Symbols in graphics ............................ 4

Symbols at the device ........................... 5

Terms and abbreviations ..................... 6

Registered trademarks ....................... 7

Function and system design ................... 8

Measuring principle ............................ 8

Input ..................................... 9

Measured variable ............................. 9

Measuring range .............................. 9

Operating frequency .......................... 13

Transmission power ........................... 14

Output .................................. 15

Output signal ............................... 15

Signal on alarm .............................. 16

Linearization ............................... 16

Galvanic isolation ............................ 16

Protocol-specific data .......................... 16

Power supply ............................. 18

Terminal assignment .......................... 18

Device plug connectors ......................... 22

Supply voltage .............................. 23

Power consumption ........................... 24

Current consumption .......................... 24

Power supply failure .......................... 24

Potential equalization ......................... 24

Cable entries ............................... 25

Cable specification ............................ 25

Overvoltage protection ......................... 25

Performance characteristics .................. 26

Reference operating conditions ................... 26

Reference accuracy ........................... 26

Measured value resolution ...................... 26

Response time .............................. 26

Influence of ambient temperature ................. 27

Influence of gas phase ......................... 27

Installation ............................... 28

Installation conditions ......................... 28

Installation: FMR62 - Integrated antenna ............ 32

Installation: FMR62 - Flush-mounted antenna ......... 33

Container with heat insulation .................... 35

Storage temperature .......................... 37

Climate class ............................... 37

Altitude according to IEC61010-1 Ed.3 .............. 37

Degree of protection .......................... 37

Vibration resistance ........................... 38

Electromagnetic compatibility (EMC) ............... 38

Process .................................. 39

Process temperature, process pressure ............... 39

Dielectric constant ............................ 42

Minimum level in case of small dielectric constants ...... 43

Mechanical construction .................... 44

Dimensions ................................ 44

Weight ................................... 51

Materials: GT18 housing (stainless steel, corrosion-

resistant) .................................. 52

Materials: GT19 housing (plastic) .................. 53

Materials: GT20 housing (die-cast aluminum, powder-

coated) ................................... 54

Materials: antenna and process connection ........... 55

Materials: Weather protection cover ................ 57

Operability ............................... 58

Operating concept ............................ 58

Local operation .............................. 59

Operation with remote display and operating module

FHX50 ................................... 59

Operation via Bluetooth® wireless technology .......... 60

Remote operation ............................ 61

SupplyCare inventory management software .......... 62

Certificates and approvals ................... 65

CE mark ................................... 65

RoHS ..................................... 65

RCM-Tick marking ............................ 65

Ex approval ................................ 65

Dual seal according to ANSI/ISA 12.27.01 ............ 65

Functional safety ............................. 65

WHG ..................................... 65

Hygienic compatibility ......................... 65

NACE MR 0175 / ISO 15156 ..................... 66

NACE MR 0103 ............................. 66

Pressure equipment with allowable pressure

≤ 200 bar (2 900 psi) .......................... 66

Marine approval ............................. 66

Radio standard EN 302729 ...................... 66

Radio standard EN 302372 ...................... 67

FCC ...................................... 67

Industry Canada ............................. 68

CRN approval (Canadian pressure equipment directive) ... 68

Test, certificate .............................. 70

Hard-copy product documentation ................. 70

Other standards and guidelines ................... 71

Environment .............................. 36

Ambient temperature range ..................... 36

Ambient temperature limits ..................... 36

Ordering information ....................... 72

Ordering information .......................... 72

3-point linearity protocol ....................... 73

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Micropilot FMR62

5-point linearity protocol ....................... 74

Customer-specific configuration ................... 75

Tagging (TAG) .............................. 75

Services ................................... 75

Application Packages ....................... 76

Heartbeat Diagnostics ......................... 76

Heartbeat Verification ......................... 77

Heartbeat Monitoring ......................... 78

Accessories ............................... 79

Device-specific accessories ...................... 79

Communication-specific accessories ................ 83

Service-specific accessories ...................... 84

System components ........................... 84

Supplementary documentation ............... 85

Standard documentation ........................ 85

Safety Instructions (XA) ........................ 85

Endress+Hauser 3

Important document information

DANGER

WARNING

CAUTION

NOTICE

Micropilot FMR62

Safety symbols

Electrical symbols

Symbol Meaning

DANGER!

This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in serious or fatal injury.

WARNING!

This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in serious or fatal injury.

CAUTION!

This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in minor or medium injury.

NOTE!

This symbol contains information on procedures and other facts which do not result in personal injury.

Symbol Meaning

Direct current

Alternating current

Direct current and alternating current

Ground connection

A grounded terminal which, as far as the operator is concerned, is grounded via a grounding system.

Protective Earth (PE)

A terminal which must be connected to ground prior to establishing any other connections.

The ground terminals are situated inside and outside the device:

• Inner ground terminal: Connects the protectiv earth to the mains supply.

• Outer ground terminal: Connects the device to the plant grounding system.

Symbols for certain types of information

Symbols in graphics

Symbol Meaning

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.

Reference to documentation.

Reference to page.

Reference to graphic.

Visual inspection.

Symbol Meaning

1, 2, 3 ... Item numbers

, 2., 3.… Series of steps

A, B, C, ... Views

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Micropilot FMR62

Symbol Meaning

A-A, B-B, C-C, ... Sections

Hazardous area

Indicates a hazardous area.

Safe area (non-hazardous area)

Indicates the non-hazardous area.

Symbols at the device

Symbol Meaning

Safety instructions

Observe the safety instructions contained in the associated Operating Instructions.

Temperature resistance of the connection cables

Specifies the minimum value of the temperature resistance of the connection cables.

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Micropilot FMR62

Terms and abbreviations

Term/abbreviation Explanation

BA Document type "Operating Instructions"

KA Document type "Brief Operating Instructions"

TI Document type "Technical Information"

SD Document type "Special Documentation"

XA Document type "Safety Instructions"

PN Nominal pressure

MWP Maximum Working Pressure

The MWP can also be found on the nameplate.

ToF Time of Flight

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

DD Device Description for HART communication protocol

εr (DC value) Relative dielectric constant

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.

BD Blocking Distance; no signals are analyzed within the BD.

PLC Programmable Logic Controller

CDI Common Data Interface

PFS Pulse Frequence Status (Switching output)

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Micropilot FMR62

Registered trademarks

HART®

Registered trademark of the HART Communication Foundation, Austin, USA

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.

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.

KALREZ®, VITON®

Registered trademark of DuPont Performance Elastomers L.L.C., Wilmington, USA

TEFLON®

Registered trademark of E.I. DuPont de Nemours & Co., Wilmington, USA

TRI CLAMP®

Registered trademark of Ladish Co. Inc., Kenosha, USA

Endress+Hauser 7

Function and system design

1 2

∆t

∆f

Micropilot FMR62

Measuring principle

The Micropilot is a "downward-looking" measuring system, operating based on the frequency modulated continuous wave method (FMCW). The antenna emits an electromagnetic wave at a continuously varying frequency. This wave is reflected by the product and received again by the antenna.

A0032017

 1 FMCW principle: transmission and reflection of the continuous wave

R Reference point of measurement D Distance between reference point and product surface

The frequency of this wave is modulated in the form of a sawtooth signal between two limit frequencies f1 and f2:

 2 FMCW principle: result of frequency modulation

1 Transmitted signal 2 Received signal

This results in the following difference frequency at any time between the transmitted signal and the received signal:

Δf = k Δt

where Δt is the run time and k is the specified increase in frequency modulation.

Δt is given by the distance D between the reference point R and the product surface:

D = (c Δt) / 2

where c is the speed of propagation of the wave.

In summary, D can be calculated from the measured difference frequency Δf. D is then used to determine the content of the tank or silo.

8 Endress+Hauser

A0023771

Micropilot FMR62

Input

Measured variable

The measured variable is the distance between the reference point and the product surface. The level is calculated based on "E", the empty distance entered. Optionally, the level can be converted to other variables (volume, mass) by linearization (32 value pairs).

Measuring range Maximum measuring range

Device Antenna

FMR62 GE:

integrated, PEEK, 20 mm / 3/4"

GF: integrated PEEK, 40 mm / 1-1/2"

GM: PTFE cladded flush mount 50 mm / 2"

GN: PTFE cladded flush mount 80 mm / 3"

1) Feature 070 in the product structure

Usable measuring range

The usable measuring range depends on the antenna size, the medium's reflective properties, the installation position and any possible interference reflections.

The following tables describe the groups of media as well as the achievable measuring range as a function of application and media group. If the dielectric constant of a medium is unknown, it is recommended to assume media group B to ensure a reliable measurement.

Maximum measuring range

10 m (32.8 ft)

22 m (72 ft)

50 m (164 ft)

80 m (262 ft)

Media groups

Media group DC (εr) Example

A0 1.2 to 1.4 Butane, liquid nitrogen, liquefied hydrogen

A 1.4 to 1.9 non-conducting liquids, e.g. liquefied gas

B 1.9 to 4 non-conducting liquids, e.g. benzene, oil, toluene, …

C 4 to 10 e.g. concentrated acids, organic solvents, esters, aniline, alcohol, acetone, …

D > 10 conducting liquids, e.g. aqueous solutions, dilute acids and alkalis

1) NH3 falls into medium group A.

For dielectric constants (DC values) of many media commonly used in various industries refer to:

• the Endress+Hauser DC manual (CP01076F)

• the Endress+Hauser "DC Values App" (available for Android and iOS)

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Micropilot FMR62

2.5 (8)

(16)

(26)

(33)

1.5 (5)

(10)

(20)

(26)

1,5

(5)

(10)

(16)

FMR62

Antenna: Integrated, PEEK, 20mm/ 3/4"

Storage tank Buffer tank Process tank with agitator

A0034565

Calm product surface (e.g. intermittent

filling, filling from bottom, immersion

tubes)

A0034575

1) Product structure: feature 070; option GE

Moving surfaces (e.g. continuous filling,

from above, mixing jets)

Measuring range [m (ft)]

A0034566

A0034580

A0034567

Turbulent surface (e.g. filling from above, agitators, baffles)

A0034585

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Micropilot FMR62

(20)

(36)

(49)

(72)

(10)

(20)

(43)

(66)

1,5 (5)

(10)

(23)

(36)

Storage tank Buffer tank Process tank with agitator

FMR62

Antenna: Integrated, PEEK, 40mm/ 1-1/2"

A0034565

Calm product surface (e.g. intermittent

filling, filling from bottom, immersion

tubes)

1) Product structure: feature 070; option GF

Moving surfaces (e.g. continuous filling,

from above, mixing jets)

A0034576

Measuring range [m (ft)]

A0034566

Turbulent surface (e.g. filling from above, agitators, baffles)

A0034581

A0034567

A0034586

Endress+Hauser 11

Micropilot FMR62

(39)

(75)

(131)

(164)

(23)

(43)

(92)

(144)

(13)

(23)

(49)

(82)

FMR62

Antenna: PTFE cladded flush mount 50mm/2"

Storage tank Buffer tank Process tank with agitator

Calm product surface (e.g. intermittent

filling, filling from bottom, immersion

tubes)

A0034565

A0034566

Moving surfaces (e.g. continuous filling,

from above, mixing jets)

A0034567

Turbulent surface (e.g. filling from above, agitators, baffles)

1) Product structure: feature 070; option GM

A0034577

Measuring range [m (ft)]

A0034582

12 Endress+Hauser

A0034587

Micropilot FMR62

(131)

(164)

(213)

(262)

(75)

(148)

(197)

(230)

(43)

(82)

(164)

(197)

Storage tank Buffer tank Process tank with agitator

FMR62

Antenna: PTFE cladded flush mount 80mm/3"

A0034565

Calm product surface (e.g. intermittent

filling, filling from bottom, immersion

tubes)

Moving surfaces (e.g. continuous filling,

from above, mixing jets)

A0034566

Turbulent surface (e.g. filling from above, agitators, baffles)

A0034567

A0034588

A0034583

1) Product structure: feature 070; option GN

A0034578

Measuring range [m (ft)]

Operating frequency

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Approx. 80 GHz

Up to 8 devices can be installed in the same tank without interfering with each other.

Micropilot FMR62

Transmission power

• Peak power: 6.3 mW

• Average output power: 63 µW

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Micropilot FMR62

Output

Output signal HART

Signal coding FSK ±0.5 mA over current signal

Data transmission rate 1 200 Bit/s

Galvanic isolation Yes

Bluetooth® wireless technology

Device version Ordering feature 610 "Accessory mounted", option NF "Bluetooth"

Operation / configuration By the SmartBlue app.

Range under reference conditions > 10 m (33 ft)

Encryption Encrypted communication and password encryption prevent incorrect

Switch output

operation by unauthorized persons.

For HART devices, the switch output is available as an option. See product structure, feature 20: "Power Supply, Output", option B: "2-wire; 4-20mA HART, switch output"

Switch output

Function Open collector switching output

Switching behavior Binary (conductive or non-conductive), switches when the programmable switch

point is reached

Failure mode non-conductive

Electrical connection values U = 16 to 35 VDC, I = 0 to 40 mA

Internal resistance RI < 880 Ω

The voltage drop at this internal resistance has to be taken into account on planning the configuration. For example, the resulting voltage at a connected relay must be sufficient to switch the relay.

Insulation voltage floating, Insulation voltage 1 350 VDC to power supply aund 500 VAC to ground

Switch point freely programmable, separately for switch-on and switch-off point

Switching delay freely programmable from 0 to 100 s, separately for switch-on and switch-off

point

Number of switching cycles corresponds to the measuring cycle

Signal source device variables

Number of switching cycles unlimited

• Level linearized

• Distance

• Terminal voltage

• Electronic temperature

• Relative echo amplitude

• Diagnostic values, Advanced diagnostics

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Micropilot FMR62

Signal on alarm

Depending on the interface, failure information is displayed as follows:

• Current output (for HART devices) – Failsafe mode selectable (in accordance with NAMUR Recommendation NE 43):

– Failsafe mode with user-selectable value: 3.59 to 22.5 mA

• Local display – Status signal (in accordance with NAMUR Recommendation NE 107) – Plain text display

• Operating tool via HART communication or service interface (CDI) – Status signal (in accordance with NAMUR Recommendation NE 107) – Plain text display

Linearization

The linearization function of the device allows the conversion of the measured value into any unit of length or volume. Linearization tables for calculating the volume in cylindrical tanks are preprogrammed. Other linearization tables of up to 32 value pairs can be entered manually or semiautomatically.

Galvanic isolation

All circuits for the outputs are galvanically isolated from each other.

Protocol-specific data HART

Manufacturer ID 17 (0x11)

Device type ID 0x112B

HART specification 7.0

Device description files (DTM, DD) Information and files under:

HART load min. 250 Ω

HART device variables The measured values can be freely assigned to the device variables.

Supported functions • Burst mode

Minimum alarm: 3.6 mA Maximum alarm (= factory setting): 22 mA

• www.endress.com

• www.fieldcommgroup.org

Measured values for PV (primary variable)

• Level linearized

• Distance

• Electronic temperature

• Relative echo amplitude

• Area of incoupling

• Analog output adv. diagnostics 1

• Analog output adv. diagnostics 2

Measured values for SV, TV, FV (second, third and fourth variable)

• Level linearized

• Distance

• Electronic temperature

• Terminal voltage

• Relative echo amplitude

• Absolute echo amplitude

• Area of incoupling

• Analog output adv. diagnostics 1

• Analog output adv. diagnostics 2

• Additional transmitter status

Wireless HART data

Minimum start-up voltage 16 V

Start-up current 3.6 mA

Start-up time 65 s

Minimum operating voltage 14.0 V

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Micropilot FMR62

Multidrop current 4.0 mA

Set-up time 15 s

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Terminal assignment

Micropilot FMR62

Power supply

Terminal assignment 2-wire: 4-20 mA HART

 3 Terminal assignment 2-wire: 4-20 mA HART

Block diagram 2-wire: 4-20 mA HART

 4 Block diagram 2-wire: 4-20 mA HART

1 Active barrier with power supply (e.g. RN221N); observe terminal voltage 2 HART communication resistor (≥ 250 Ω); observe maximum load 3 Connection for Commubox FXA195 or FieldXpert SFX350/SFX370 (via VIATOR Bluetooth modem) 4 Analog display device; observe maximum load 5 Cable screen; observe cable specification 6 Measuring device

A0036498

A0036499

18 Endress+Hauser

Micropilot FMR62

Terminal assignment 2-wire: 4-20 mA HART, switch output

 5 Terminal assignment 2-wire: 4-20 mA HART, switch output

A Without integrated overvoltage protection B With integrated overvoltage protection 1 Connection 4-20 mA HART passive: terminals 1 and 2, without integrated overvoltage protection 2 Connection switch output (Open Collector): terminals 3 and 4, without integrated overvoltage protection 3 Connection switch output (Open Collector): terminals 3 and 4, with integrated overvoltage protection 4 Connection 4-20 mA HART passive: terminals 1 and 2, with integrated overvoltage protection 5 Terminal for cable screen

Block diagram 2-wire: 4-20 mA HART, switch output

 6 Block diagram 2-wire: 4-20 mA HART, switch output

A0036500

A0036501

Endress+Hauser 19

Terminal assignment 2-wire: 4-20 mA HART, 4-20 mA

Micropilot FMR62

A0036500

 7 Terminal assignment 2-wire: 4-20 mA HART, 4-20 mA

A Without integrated overvoltage protection B With integrated overvoltage protection 1 Connection current output 1, 4-20 mA HART passive: terminals 1 and 2, without integrated overvoltage

protection 2 Connection current output 2, 4-20 mA: terminals 3 and 4, without integrated overvoltage protection 3 Connection current output 2, 4-20 mA: terminals 3 and 4, with integrated overvoltage protection 4 Connection current output 1, 4-20 mA HART passive: terminals 1 and 2, with integrated overvoltage

protection 5 Terminal for cable screen

Block diagram 2-wire: 4-20 mA HART, 4-20 mA

A0036502

 8 Block diagram 2-wire: 4-20 mA HART, 4-20 mA

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Micropilot FMR62

Connection examples for the switch output

For HART devices, the switch output is available as an option. See product structure, feature 20: "Power Supply, Output", option B: "2-wire; 4-20 mA HART, switch output"

A0015909

 9 Connection of a relay

Suitable relays (examples):

• Solid-state relay: Phoenix Contact OV-24DC/480AC/5 with mounting rail connector UMK-1 OM-R/AMS

• Electromechanical relay: Phoenix Contact PLC-RSC-12DC/21

 10 Connection of a digital input

1 Pull-up resistor 2 Digital input

For optimum interference immunity we recommend to connect an external resistor (internal resistance of the relay or Pull-up resistor) of < 1 000 Ω.

A0015910

Endress+Hauser 21

Micropilot FMR62

Device plug connectors

For the versions with fieldbus plug connector (M12 or 7/8"), the signal line can be connected without opening the housing.

Pin assignment of the M12 plug connector

Pin Meaning

1 Signal +

2 not connected

3 Signal -

4 Ground

A0011175

Pin assignment of the 7/8" plug connector

Pin Meaning

1 Signal -

2 Signal +

3 Not connected

4 Screen

A0011176

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Micropilot FMR62

R [ ]W

U0[V]

20 30 35

500

R [ ]W

U0[V]

20 30 35

500

Supply voltage

An external power supply is necessary.

Various power supply units can be ordered as an accessory from Endress+Hauser.

2-wire, 4-20 mA HART, passive

"Power supply, output"

2-wire; 4-20 mA HART

"Approval"

• Nonhazardous

• Ex nA

• Ex ic

• CSA GP

Ex ia / IS 14 to 30 V

• Ex d(ia) / XP

• Ex ic(ia)

• Ex nA(ia)

• Ex ta / DIP

Ex ia + Ex d(ia) / IS + XP

1) Feature 020 in the product structure

2) Feature 010 in the product structure

3) If the Bluetooth modem is used, the minimum supply voltage increases by 2 V.

4) At ambient temperatures TTa ≤ –20 °C, a terminal voltage U ≥ 16 V is required to start the device with the minimum failure current (3.6 mA).

Terminal voltage U at device

14 to 35 V

14 to 30 V

Maximum load R, depending on the supply voltage U0 of the power supply unit

3) 4)

A0031745

"Power supply, output"

2-wire; 4-20 mA HART, switch outpu

"Approval"

• Nonhazardous

• Ex nA

• Ex nA(ia)

• Ex ic

• Ex ic(ia)

Terminal voltage U at device

16 to 35 V

Maximum load R, depending on the supply voltage U0 of the power supply unit

• Ex d(ia) / XP

• Ex ta / DIP

• CSA GP

• Ex ia / IS

16 to 30 V

• Ex ia + Ex d(ia) / IS + XP

1) Feature 020 in the product structure

2) Feature 010 in the product structure

3) If the Bluetooth modem is used, the minimum supply voltage increases by 2 V.

A0031746

Endress+Hauser 23

Micropilot FMR62

R [ ]W

U0[V]

20 30 35

500

"Power supply, output"

2-wire; 4-20 mA HART, 4-20 mA

1) Feature 020 in the product structure

2) Feature 010 in the product structure

3) If the Bluetooth modem is used, the minimum supply voltage increases by 2 V.

Integrated polarity reversal protection Yes

Permitted residual ripple with f = 0 to 100 Hz USS < 1 V

Permitted residual ripple with f = 100 to 10 000 Hz USS < 10 mV

"Approval"

All 16 to 30 V

Terminal voltage U at device

Maximum load R, depending on the supply voltage U0 of the power supply unit

A0031746

Power consumption

Current consumption

Power supply failure

Potential equalization

"Power supply; Output"

A: 2-wire; 4-20mA HART < 0.9 W

B: 2-wire; 4-20mA HART, switch output < 0.9 W

C: 2-wire; 4-20mA HART, 4-20mA < 2 x 0.7 W

1) Feature 020 of the product structure

HART

Nominal current 3.6 to 22 mA the start-up current for multidrop mode can be parametrized

Breakdown signal (NAMUR NE43) adjustable: 3.59 to 22.5 mA

(is set to 3.6 mA on delivery)

Power consumption

• Configuration is retained in the HistoROM (EEPROM).

• Error messages (incl. value of operated hours counter) are stored.

No special measures for potential equalization are required.

If the device is designed for hazardous areas, observe the information in the documentation "Safety Instructions" (XA).

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Micropilot FMR62

Cable entries Connection of power supply and signal line

To be selected in feature 050 "Electrical connection"

• Gland M20; Material dependent on the approval: – For Non-Ex, ATEX, IECEx, NEPSI Ex ia/ic:

Plastics M20x1.5 for cable ⌀5 to 10 mm (0.2 to 0.39 in)

– For Dust-Ex, FM IS, CSA IS, CSA GP, Ex nA:

Metal M20x1.5 for cable ⌀7 to 10 mm (0.28 to 0.39 in)

– For Ex d:

No gland available

• Thread – ½" NPT – G ½" – M20 × 1.5

• Plug M12 / Plug 7/8" Only available for Non-Ex, Ex ic, Ex ia

Connection of remote display FHX50

Feature 030 "Display, Operation" Cable entry for FHX50 connection

L: "Prepared for display FHX50 + M12 connection" M12 socket

M: "Prepared for display FHX50 + M16 gland, custom connection" M12 cable gland

N: "Prepared for display FHX50 + NPT1/2 thread, custom connection" NPT1/2 thread

Cable specification

Overvoltage protection

• Devices without integrated overvoltage protection Pluggable spring-force terminals for wire cross-sections 0.5 to 2.5 mm2 (20 to 14 AWG)

• Devices with integrated overvoltage protection Screw terminals for wire cross-sections 0.2 to 2.5 mm2 (24 to 14 AWG)

• For ambient temperature TU≥60 °C (140 °F): use cable for temperature TU +20 K.

HART

• A normal device cable suffices if only the analog signal is used.

• A shielded cable is recommended if using the HART protocol. Observe grounding concept of the plant.

If the measuring device is used for level measurement in flammable liquids which requires the use of overvoltage protection according to DIN EN 60079-14, standard for test procedures 60060-1 (10 kA, pulse 8/20 μs), an overvoltage protection module has to be installed.

Integrated overvoltage protection module

An integrated overvoltage protection module is available for 2-wire HART devices.

Product structure: Feature 610 "Accessory mounted", option NA "Overvoltage protection".

Technical data

Resistance per channel 2 × 0.5 Ω max.

Threshold DC voltage 400 to 700 V

Threshold impulse voltage < 800 V

Capacitance at 1 MHz < 1.5 pF

Nominal arrest impulse voltage (8/20 μs) 10 kA

External overvoltage protection module

HAW562 or HAW569 from Endress+Hauser are suited as external overvoltage protection.

1) The material of the gland is dependent on the housing type; GT18 (stainless steel housing): 316L (1.4404); GT19 (plastic housing) and GT20 (aluminum housing): nickel-coated brass (CuZn).

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Performance characteristics

0.8 (2.62)

4 (0.16)

1 (0.04)

-1 (-0.04)

-4 (-0.16)

D [m (!)]

∆

[mm (in)]

Micropilot FMR62

Reference operating conditions

Reference accuracy

• Temperature = +24 °C (+75 °F) ±5 °C (±9 °F)

• Pressure = 960 mbar abs. (14 psia) ±100 mbar (±1.45 psi)

• Humidity = 60 % ±15 %

• Reflector: metal plate with diameter ≥ 1 m (40 in)

• No major interference reflections inside the signal beam

Typical data under reference operating conditions: DIN EN IEC 61298-2 / DIN EN IEC 60770-1; percentage values in relation to the span.

Output: digital analog

Accuracy (Sum of nonlinearity, nonrepeatability and hysteresis)

Non-repeatability

1) Add error of the analogous value to the digital value.

2) If the reference conditions are not met, the offset/zero point arising from the mounting conditions may be up to ±4 mm (0.16 in). This additional offset/zero point can be compensated for by entering a correction (parameter "level correction") during commissioning.

3) The non-repeatability is already considered in the accuracy.

Measuring distance up to 0.8 m (2.62 ft): max. ±4 mm (±0.16 in)

Measuring distance > 0.8 m (2.62 ft): ±1 mm (±0.04 in) ±0.02 %

≤ 1 mm (0.04 in)

±0.03 %

Differing values in near-range applications

 11 Maximum measured error in near-range applications

Δ Maximum measured error R Reference point of the distance measurement D Distance from reference point of antenna

Measured value resolution

Dead band according to DIN EN IEC 61298-2 / DIN EN IEC 60770-1:

• Digital: 1 mm

• Analog: 1 µA

Response time

The response time can be configured. The following step response times (in accordance with DIN EN IEC 61298-2 / DIN EN IEC 60770-1)

are when damping is switched off:

2) According to DIN EN IEC 61298-2 / DIN EN IEC 60770-1, the step response time is the time that elapses after an abrupt change in the input signal until the change in the output signal has adopted 90% of the steady-state value for the first time.

26 Endress+Hauser

A0032636

Micropilot FMR62

Influence of ambient temperature

Influence of gas phase

Sampling rate

Response time < 3.6 s

≥1.3 s–1 at U ≥ 24 V

The measurements are performed according to DIN EN IEC 61298-3 / DIN EN IEC 60770-1

• Digital (HART): average TK = 3 mm/10 K

• Analog (current output): – Zero point (4 mA): average TK = 0.02 %/10 K – Span (20 mA): average TK = 0.05 %/10 K

High pressure reduces the speed of propagation of the measuring signals in the gas/vapor above the medium. This effect depends on the type of gas phase and its temperature. This results in a systematic measured error that increases with increasing distance between the reference point of the measurement (flange) and the surface of the product. The following table shows this measured error for a few typical gases/vapors (with regard to the distance, a positive value means that a too large distance is measured):

Gas phase Temperature Pressure

°C °F 1 bar (14,5 psi) 10 bar (145 psi) 25 bar (362 psi)

Air/nitrogen 20 68 0.00 % 0.22 % 0.58 %

200 392 –0.01 % 0.13 % 0.36 %

400 752 –0.02 % 0.08 % 0.29 %

Hydrogen 20 68 –0.01 % 0.10 % 0.25 %

200 392 –0.02 % 0.05 % 0.17 %

400 752 –0.02 % 0.03 % 0.11 %

Water (saturated steam) 100 212 0.02 % - -

180 356 - 2.1 % -

263 505,4 - - 4.15 %

310 590 - - -

364 687 - - -

With a known, constant pressure, it is possible to compensate for this measured error with a linearization, for example.

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Endress+Hauser FMR62 Specifications

Table of contents

Important document information

Safety symbols

Electrical symbols

Symbols for certain types of information

Symbols in graphics

Symbols at the device

Terms and abbreviations

Registered trademarks

Function and system design

Measuring principle

Input

Measured variable

Measuring range Maximum measuring range

Operating frequency

Transmission power

Output

Output signal HART

Signal on alarm

Linearization

Galvanic isolation

Protocol-specific data HART

Terminal assignment

Power supply

Device plug connectors

Supply voltage

Power consumption

Current consumption

Power supply failure

Potential equalization

Cable entries Connection of power supply and signal line

Cable specification

Overvoltage protection

Performance characteristics

Reference operating conditions

Reference accuracy

Measured value resolution

Response time

Influence of ambient temperature

Influence of gas phase