ultrasonic measurement prosonic - endress+hauser measurement prosonic ... fmu 860 single channel...

TechnicalInformationTI 013F/24/ae

Ultrasonic Measurementprosonic

Benefits• flexibility

– universal transmitters cover a widerange of measurement and controlapplications

– sensors provide liquid and solidslevel measurement spans from twoinches (50 mm) to over 230 feet(70 m)

– up to five programmable relays– field, panel, and rack mount

versions• enhanced reliability

– no electronics in sensor to fail– rugged sensors have high material

buildup immunity and corrosionresistance

• low installed cost– common shielded twisted-pair

wiring between sensor andtransmitter

– offers combination open channelflow and wet well level measure-ment in one transmitter

– standard temperature measure-ment in sensor for speed of soundcompensation

– one or two standard isolated 4 to20 mA DC outputs

• enhanced safety– low (under 50 V) voltage transmis-

sion to sensor– overfill/underfill level switch option

provides added protection• simple installation and maintenance

– uses standardized matrix operatorinterface

– invisible fuzzy logic implementationmanager guides operation

Universal transmitter with rugged sensorsfor level or open channel flow measurement

FDU 80

FDU 80F/81Fwith Slip-on Flange

FDU 85

FDU 84

FDU 83

FDU 82

FDU 81

Applications• water and wastewater management

– open channel flow– differential level/screen control– wet well level/pump sequencing

• solids handling– hopper level– silo level

• liquids management– storage tank level– process vessel level

FMU ProsonicTransmiiter

FDU 86

The Power of Know-how

General Information Prosonic is designed specifically forcustomers who need to make reliableultrasonic level or open channel flowmeasurement. Prosonic is based on theultrasonic theory, which states that soundtravels through space at known ratesdepending on the density and tempera-ture of the medium. Ultrasonic leveltechnology measures the time it takes fora burst of sound to travel from a sensorto a reflective surface and back. It thenconverts that information into a levelmeasurement. This noncontact ap-proach is ideal for many industrialapplications where corrosive conditions,changing product characteristics, andother factors make contacting levelmeasurement devices less reliable.

Predicting all the conditions that affect anultrasonic level measurement systemoften can be a difficult task. Applicationsthat appear to be simple may becomevery challenging due to filling noise,nuisance reflections, or variable materialprofiles. Even more challenging areapplications where these and otherinterfering conditions are changingconstantly.

Prosonic brings many reliable levelmeasurement and operating capabilitiescloser to the user. A new generation ofultrasonic sensors provides high sensitiv-ity, rugged construction, and resistanceto corrosive coatings. A fuzzy logicimplementation manager in the transmit-ter smoothly combines many sophisti-cated signal processing techniquesthrough the Endress+Hauser operatorinterface. The user can set up aProsonic application by entering a fewparameters describing individualmeasurement needs. As conditionschange, Prosonic adapts to providereliable level information. Prosonic alsoprovides HART® or Rackbus communi-cation allowing an operator to remotelyinterface with the measurement systemanywhere on its 4 to 20 mA loop with ahandheld communicator or laptopcomputer.

The Prosonic family is designed to fulfillmany measurement and control needs.Prosonic addresses water/wastewatermanagement, solids handling, andprocess industry liquid level measure-ment requirements.

In the water/wastewater managementindustry, Prosonic measures openchannel flow, differential level acrossscreens, and wet well level. It providessampler, differential screen and pumpsequencing control. Prosonic offersaccurate measurements of hopper leveland bulk storage inventory. In the field ofliquids management, Prosonic provideslevel measurement in a wide variety ofprocess and storage vessels. The dual-channel Prosonic can measure level inany two applications simultaneously - forexample, open channel flow and longrange liquid level, or short range liquidand long range solids level.

Endress+Hauser offers eight differentsensors with characteristics suited forvarious ranges and measurementconditions. Prosonic can measurematerial spans from two inches to 147feet with a resolution of 1/32” (1 mm) or0.1% of span (which ever is greater).Users can mount the sensor up to 1,000feet (300 m) from its transmitter usingindustry standard shielded twisted-pairwire. HART® technology enables users tointeract with the measuring system atany point in the 4 to 20 mA loop.

The dual-channel Prosonic, FMU 862,provides point and continuous, long andshort range, and differential levelmeasurement. The FMU 862 also cansupport a single open channel flowmeasurement. The FMU 862 is designedfor use with single channel level in solidsor liquids environments. The FMU 861 isdesigned to make open channel flowmeasurements. All systems have threeor five relay outputs for limit signals,totalizers, and printers.

Certified qualityDevelopment, production, and documen-tation are all critical factors whenevaluating the quality of Prosonic.Endress+Hauser is an approved com-pany which fulfills all the quality stan-dards set by ISO 9001.

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Provides 150 programmed flow curves

Differential level measurement and screen control

Level measurement and pump sequencingof up to five pumps

Several factors can distort an ultrasonicmeasurement. By eliminating multiplereflections, unwanted echoes, effects ofsensor coatings, and unwanted noise,Prosonic provides very accurate anddependable measurements.

The sensor, connecting cable, andtransmitter all contribute to reliableultrasonic level measurement, economi-cal installation costs, ease of operation,and safe plant operation.

SensorsProsonic draws form a family of sensorsproviding the highest efficiency andresistance to material buildup available.The greater efficiency of the FDU 8Xsensor family provides reliable measure-ment of level even with substantialmaterial buildup or dripping liquids. Thesensor can even be submerged in liquidswithout damage. Other ultrasonic levelsuppliers may provide thin membraneultrasonic sensors that, due to weakacoustic power and lack of protection,are easily compromised by buildup andcorrosion.

The FDU 8X sensor design reduces sidelobes, which are responsible for many ofthe unwanted reflections found insensors offered by other manufacturers.This sensor design enhances thereliability of the system by reducing thenumber of unwanted reflections thetransmitter must filter out. The integraltemperature sensor is a standardProsonic offering; it gives the userspeed-of-sound compensation withoutrequiring an optional temperature sensor.Because Prosonic has no electronics inthe sensor, less of the system is exposedto hostile conditions in the field.

Features and Benefits Cable ConnectionsProsonic sensors can be mounted up to1,000 feet (300 m) away from thetransmitter using common shieldedtwisted-pair wiring. It may be possible toinstall Prosonic using existing wiring.

B = Blocking distanceNOTE: Blocking distance is the area directlybelow the sensor in which level cannot besensed. Each time the sensor pulses, it muststop ringing before it can listen for a returnedsignal. This waiting period translates into aspecific distance which is inherent to the sensormodel specified.D = Distance from sensor to surface of fill materialL = Level in vesselF = Maximum fill height (100% full)E = Zero point of measurement (0%, empty)

Model FeaturesFMU 860 Single channel levelFMU 861 Single channel open channel flowFMU 862 Dual channel for differential,

averaging, and dual levelmeasurements. Single channelfor open channel flow.

Options LCD backlighting, Rackbusor HART® protocol, 3 or 5 outputrelays, overfill / underfill protection.

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PROSONICFMU 860

E+H operator interface

Supports FDU 8Xsensors

Separate wiringcompartment

Three or five 4 ampSPDT relays

Relays fullyprogrammable

High/low level switchoption

HART communicationoption

No electronics atsensor. Submersibledesign. Low voltagetransmission.

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B

E

F

L

FMU

D

Blocking Distance (B)FDU 80 / 80 F 12” (0.3 m)FDU 81 / 81 F 20” (0.5 m)FDU 82 29” (0.8 m)FDU 83 36” (1.0 m)FDU 84 29” (0.8 m)FDU 85 29” (0.8 m)FDU 86 62” (1.6 m)

The unique design of the FMU 8Xsensors requires less than 50 volts tooperate. Most other industrial ultrasonicsensors available today require up to1000 volts, requiring coaxial cable tosafely convey this high voltage in thefield. Prosonic offers lower installedcosts because shielded twisted-pairwiring is less expensive than coaxialcable.

TransmitterThe FMU 86X transmitters offer signalprocessing capabilities and ease ofoperation unmatched by suppliers ofother ultrasonic measurement systems.

Endress+Hauser OperatorInterfaceProsonic offers an operator interface thatis becoming the standard for the industry.The Endress+Hauser operator interfaceis a matrix array offering access toinformation and parameters common tohundreds of thousands of measurementsystems installed worldwide. Usersresponsible for installing or interactingwith these instruments do not have tolearn another new operator interface inorder to work with the Prosonic.

Prosonic has five level measurementoperating modes to make initial setupeasier for the end user: standard,liquids, liquids with rapid level changes,fine-grained bulk solids, coarse bulksolids, and solids with rapid levelchanges. In addition to the five operatingmodes, Prosonic includes 150 presetopen channel calibration curves de-signed to mate with your particular weiror channel.

Fuzzy LogicThrough the Endress+Hauser operatorinterface and invisible to the user is amanagement system that processes acollection of patented or proprietarysignal processing algorithms. The usercan enter one or two values through theoperator interface defining the type oflevel or open channel flow applicationinstalled. The fuzzy logic implementationmanager selects and blends the signalprocessing algorithms best suited to theapplication. Users can set up mostapplications without the need for factoryor other trained personnel. Selectedsignal processing algorithms aredescribed in the following sections.

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Right-angledWeir

Preset Q/hCharacteristicCurves:

Trapezoidal Weir

Triangular Weir

Liquid

H0

MeasuredValue

RelaySelection

Lineari-zation

Fixed TargetSuppression

H1

EmptyCalibration

RelayFunction

PresetHeight

EchoAttentuation

H2

FullCalibration

Switch-0nPoint

Q/h CharacterCurve

S/NFactor

H3

Application

Switch-OffPoint

Level

Warning /Fault

H4

SensorType

PumpControl

Volume

OutputWith Fault

V0

V1

V2

V3

Fine-grainedBulk Solids

Coarse-grainedBulk Solids

Rapid LevelChanges

Venturi Channel

Time Dependent ThresholdThe time dependent threshold (TDT)detects echoes above a set level bygauging a collection of echoes (andnoise) returned from various distances.This collection of echoes often is referredto as an envelope curve. Typically, theTDT is set higher for echoes closer to thesensor and lower for echoes farther awayso that much of the unwanted noise isnot detected. Because the TDT is fixedat the beginning and end of the envelopecurve, it is not always able to respond tochanges within the envelope curve fromfilling operations, material buildup, anddust formation. For many applications, itis implemented successfully.

Floating Average CurveThe floating average curve (FAC), adynamic adaptation of the TDT, canrespond to level changes that the TDTcannot detect. Like the TDT, the FACfilters out noise and unwanted echoes.However, the FAC is generated from arunning average of envelope curves,enabling Prosonic to detect true levelechoes even when acoustic conditionsvary greatly. This method enablesProsonic to respond to changes withinthe envelope curve that the TDT isunable to manage.

Tank MappingTank mapping is a patented techniquethat digitizes and eliminates unwantedechoes from fixed reflective surfacesinside a silo or vessel (see illustrationleft). Via the Endress+Hauser operatorinterface, users can set the TDT or FACto ignore unwanted echoes when the siloor vessel is empty. When the materiallevel moves up and down past the sourceof unwanted echoes, the echo represent-ing the level is tracked, rather than theunwanted echoes.

First Echo FactorSometimes the echoes detected by theTDT or FAC do not represent the truelevel. Echoes from the walls of a silo orhopper may be as significant as thedirect echoes from the material surface.The relative sizes of these echoes mayvary, so an algorithm is used to decidewhich echo is correct. This algorithmcalculates an effective first echo factorthat adjusts to the amplitude of thelargest echo and changes with variationsin the strength of the echoes. A largeecho amplitude results in a large firstecho factor and a small echo amplituderesults in a small factor.

The algorithm is set up with the appropri-ate first echo factors and first echoswitch-off points with each operatingmode. The effective first echo factor isformed from these values and the echoattenuation. If a smaller, earlier echoexceeds an effective first echo factor, it isconsidered to be the one representingtrue level.

Zone EvaluationBulk materials in silos or hoppers oftenform multiple reflective surfaces. Thesediffused echoes representing severallevels may cause a constantly changingdisplay as the echo pattern changes.Zone evaluation is a mathematicalsmoothing of the envelope curve meldingthe diffused echoes into one echo thatmore clearly represents the levelmeasurement value.

Fuzz FilterThe fuzz filter operates like a register thatcan have 0, 2, 4, 8, or 16 storagelocations. With every ultrasonic pulse,the fuzz filter stores a new measuredvalue. The displayed value is calculatedfrom the average of all the values. Whenall storage locations are full, the oldestvalue is removed and replaced by thenext value, and so on. This processrapidly produces a stable displayedvalue. Jitter during constant levelconditions is eliminated, and runoff afterfilling or emptying the vessel is pre-vented.

Agitator FilterThe movement of agitator blades in thepath of the ultrasonic beam can causesignificant undesired reflections. Theagitator filter algorithm determines thereflective pattern of the agitator bladeand eliminates it from further signalprocessing.

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Signal

Tim

e

Sensor Selection The most crucial aspect of the measuringprocess is sensor selection and installa-tion. Preliminary selection of the sensorcan be made by comparing your needsto the sensor specifications. Whenmaking a final decision, use the table(right) to choose the correct sensor.

The diagram below defines the effectecho attenuation has on the sensor’smeasurement range. The ideal echoattenuation curves are shown for eachsensor. Also shown is the echo attenua-tion detection limit (120dB), the lowestecho attenuation detectable by theProsonic transmitter. To account forextraneous tank noise, a 20 dB noisebuffer is added, which sets a practicalecho attenuation detection limit (100 dB).

A number of echo attenuation sourcesthat affect proper sensor selection areshown in the table at the right. Add theecho attenuation sources that arepresent in your application. Use yourestimated attenuation total and theRange diagram below to determine eachsensor’s practical measurement range.

Echo Attenuation Sources dBTemperature difference Up to 68°F (20°C) 0 Up to 104°F (40°C) 5 to 10 Up to 140°F (60°C) 10 to 20Fill Stream Out of detection range 0 Small quantities in detection range 5 to 10 Large quantities in detection range 10 to 20Dust No dust development 0 Little dust development 5 Heavy dust development 5 to 10Solid Material Surface Hard, rough 20 Soft (e.g., peat, dust covered clinker) 20 to 40Liquid Surface Calm 0 Wavy 5 to 10 Very turbulent (e.g. agitator) 10 to 20Foam CFPressure 14 to 30 psi 0 Partial vacuum CFSteam CFLiquids / Solids ExtendedTempeature Range (-40°F) signal reduction (add to attenuation dB for temperatures from -4° to -40°F

FDU 80 / FDU 81 4FDU 82 / FDU 83 15FDU 84 15FDU 85 20

Example For Calculating the Range (Liquid Tank)FACTORS ATTENUATIONTemperature difference in tank, maximum 104°F (40°C) 10 dBSmall fill stream quantities in detection range 10 dBLiquid surface is strongly turbulent 20 dBSum of Attenuation Values 40 dB

Under the above conditions, the range is approximately 23 feet (7 m) with the FDU 81sensor.

Echo attenuation as afunction of range forvarious sensors (idealreflection and atmosphericconditions)Sensors mounted in nozzlesgenerate a background noiseof 20 dB which decreaseswith measuring range - at13 feet (4 m) it falls to 0 dB.

Check the factors affectingyour measurement from thetable above. Add up theirattenuation values. Take thissum and find the point whereit intersects with the rangelimit of the sensor you areusing. This gives themaximum measuring range ofthat sensor.

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0 20 40 60

23

80 100 110

150

230

FDU 85

FDU 86

FDU 83

FDU 82

FDU 81/81F

FDU 80/80F

130

60

30

0

16

100

Attenuation (dB)

Mea

surin

g R

ange

(ft.

)

Sensor Location For best performance and maximumrange, the selected sensor should bepositioned vertically at the top of thevessel. It should be in a location thatmaximizes its returned echo signal andminimizes vessel obstructions in its lineof sight. Although an individual sensorhas a constant, definable output beam,the more important consideration is theline-of-sight reflected echo.

Minimizing vessel obstructions in the lineof sight is accomplished by consideringthe geometry of both the vessel and the

resulting reflected echoes. On vesselsthat have coned bottoms, or dished(round) tops, positioning the sensor awayfrom the vessel center is recommendedto eliminate echo travel paths not relatedto the level.

Maximizing the returned level echo isgenerally accomplished by avoidingsensor mounts that either sight into thefill stream or position the sensor so that alarge part of its output beam is lost intothe vessel wall (see illustration at left).

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Sensor Installation Prosonic sensors are provided with 1”NPT fittings for mounting flexibility. TheFDU 80/81F sensors may also beinstalled with a slip-on flange.

For optimum performance, the sensorshould be installed so that its lower edgeis below the top of the tank or silo. Thiscan be done if the maximum level doesnot enter into the blocking distance (blindspace) of the sensor. See illustrationbelow.

Pipe well mounting is used when thematerial high level is high enough thatthe sensor must be moved to allow forthe blocking distance.

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Sensor positioner mounting

Flange mounting

Pipe well mounting

Pipe or conduit mounting

Open channel flow mounting

Grid and support bracket mounting

Pipe or conduit mounting can be usedwhere the strength of the mountingmatches the sensor weight.

Support bracket mounting and gridmounting illustrate two other commoninstallation approaches.

Sensor positioner mounting, below,depicts how the sensor can be installedin the best position with respect to themeasured material. A sensor positionercan be used to install a sensor in a tankthat has an opening smaller than thesensor’s diameter.

Open channel flow applications requirethat the sensor be mounted over thecenter line of the weir or flume and at aheight exceeding the sum of the highestflow level and the sensor’s blockingdistance.

The FDU 80 F and FDU 81 F sensorscan be flush mounted using the FAU 80slip-on flange.

Inner Edge45° x .08" (2 mm)

D

L

FDU 80FFDU 81F

DL

Sensor D LFDU 80 / 80 F 3.9” <13.7”

(100 mm) (<350 mm)FDU 81 / 81 F 5.9” <13.7”

(150 mm) (<350 mm)FDU 82 5.9” <11.8”

(150 mm) (<300 mm)FDU 83 7.8” <15.7”

(200 mm) (<400 mm)FDU 84 / 85 9.8” <19.7”

(250 mm) (<500 mm)FDU 86 12” <24”

(300 mm) (<600 mm)

FAU 80 Slip-on Flange

FDU 80 F, 3" 150 lb ANSI slip-on flangeP/N: FAU 80 - AAP, polypropyleneP/N: FAU 80 - AAJ, B 16.5 stainless steel

FDU 81 F, 4" 150 lb ANSI ANSI slip-on flangeP/N: FAU 80 - AHP, polypropyleneP/N: FAU 80 - AHJ, B 16.5 stainless steel

3.2"(80mm)

3.8"(95mm)

0.94"(23.9mm)

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Technical Data Transmitter FMU 86X

Enclosure Field, NEMA 4X (IP 65), corrosion-resistant reinforced plastic withnine punch-out conduit entries. Optional panel mount (144 x 144 mm)or rack mount (19”, 21 HP); both include keypad and display.

Display 4-1/2 digit LCD with vertical and horizontal matrix position displayand bar graph (%). Optional backlit matrix display.

Communication Plug-in options supporting INTENSOR or HART serial communicationvia the 4 to 20 mA loop or RS 485 interface (DMS ready)

Sensor Input One or two (FMU 862 only) sensor channels of any combinationWeight Field mounted, 5.7 lbs (2.6 kg). Panel, 2.2 lbs (1 kg). Rack, 2.8 lbs

(1.3 kg).Electrical Classification General purposeResolution 0.03” (1 mm) or 0.1% of measuring span (which ever is greater)Power Input 90 to 146 VAC, 50/60 Hz; 180 to 276 VAC, 50/60 Hz; 20 to 30 VDCEMI / RFI Effects 1% for maximum measuring span at 10 V/m (10 kHz to 1 GHz) to

NAMUR, IEC 801-3Overfill/Underfill Input Support connections to external voltage free make-or-break contacts

or PNP switchesPower Consumption 15 VA maximumOperating Temperature -4°F to + 140°F (-20° to +60°C)Storage Temperature -24°F to + 176°F (-40° to + 80°C)Humidity 95% average annual humidityDrift Temperature, negligible; load, negligibleShock Resistance 2g (10 to 55 Hz) and 15g for 11 ms per DIN40 040, type WRelay Outputs 3 or 5 SPDT, 4A at 250 VAC programmable relays including

fault indication, limit switches, totalizer driver (FMU 861 and 862 only),sampler activation (FMU 861 and 862 only)

Analog Outputs 1 or 2 (FMU 862 only) isolated 4 to 20 mA @ 600 Ohms maximum.Output current limit, 24 mADC

Indicators Yellow LED for each relay, lighting during de-energized state; greenLED indicating proper operation

Totalizer Optional 6-digit (non-resettable, FMU 861 and 862 only)Keypad Interface 6 tactile feedback keys to access operator matrix. V and H keys for

vertical and horizontal movement. Other keys for data entry.Recommended Cable 18-AWG, two-conductor with maximum 25 Ohms and 60 nF per

conductor, maximum 1000 feetOptional Accessories FAU 40 sensor positioner, all-weather cover, pipe-mount kit.Dimensions Refer to diagram below

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PROSONICFMU 860

10.85"(Mtg.)

MountingHole (4)

7.9"(Mtg.)

11.5"

4.17"

10"

Knock-outConduitEntry (9)

10

Technical Data (con’t)

9.61" dia.

6.1"

16.4 ft. cable3-wire withshield


FDU 85

5.3"

9.4" dia.



FDU 84

5.2"

3.86"dia.

3.86"dia.



FDU 82

5.4"

7.4" dia.



FDU 83

4.8"

FDU80 / 81FDU

80 / 81

2.76"dia.

2.76"dia.



4.7" FDU80F / 81F

FDU80F / 81F

3.4"dia.3.4"dia.

3.1"dia.3.1"dia.



17.7"

1.18"

7.8" dia.



FDU 86

FDU Sensors

Type FDU 80 F FDU 81 F FDU 80 FDU 81Measuring Range Liquids 16 ft (5m) 29 ft (9m) 16 ft (5m) 29 ft (9m) Solids N/A N/A 6.5 ft (2m) 16 ft (5m)Blocking Distance 12” (0.3m) 20” (0.5m) 12” (0.3m) 20” (0.5m)Electrical Classification Cl I, Div 1, Cl I, Div 1 Cl I, Div 1 Cl I, Div 1

Grps A-G Grps A-G Grps A-G Grps A-GOperating Frequencyat 72°F (23°C) 58 kHz 44 kHz 58 kHz 44 kHzBeam Angle 8° 8° 8° 8°Housing Material Tefzel (ETFE) Tefzel (ETFE) Polypropylene PolypropyleneOperating Temperature -40° to +203°F * -40° to +203°F * -4° to +140°F -4 to +176°F

(-40 to +95°C) (-40° to +95°C) (-20° to +60°C) (-20° to +80°C)Extended Temperature ** N/A N/A -40° to +140 -40° to +176°F

(-40° to +60°C) (-40° to +80°C)Operating Pressure Max. 58 psia (4 bar) 58 psia (4 bar) 29 psia (2 bar) 29 psia (2 bar)Protection NEMA 6P (IP68) NEMA 6P (IP68) NEMA 6P (IP68) NEMA 6P (IP68)

submersible submersible submersible submersibleRelative Humidity 100% 100% 100% 100%Mounting 1” NPT, G1A, 1” NPT, G1A, 1” NPT or G1A 1” NPT or G1A

or slip-on flange or slip-on flangeWeight 1.1 lbs (0.5 kg) 1.1 lbs (0.5 kg) 1.2 lbs (0.55 kg) 1.3 lbs (0.6 kg)Temperature Sensor Standard Standard Standard StandardHeating N/A N/A Optional *** Optional ***

* Temperature limits: sterilization for 30 minutes, maximum temperature is +275°F (+135°C)** Extended temperature from -4° to -40°F increases signal attenuation, refer to page 6 for information.*** If heating option is selected, an external temperature sensor and DC power supply is required.

Type FDU 82 FDU 83 FDU 84 FDU 85 FDU 86Measuring Range Liquids 65 ft (20m) 82 ft (25m) N/A N/A N/A Solids 33 ft (10m) 49 ft (15m) 82 ft (25 m) 147 ft (45m) 230 ft (70 m)Blocking Distance 29” (0.8m) 36” (1m) 29” (0.8m) 29” (0.8m) 62” (1.6 m)Electrical Classification Cl I, Div 1, Cl II, Div 1 Cl II, Div 1 Cl II, Div 1 Cl II, Div 1

Grps A-G Grps E-G Grps E-G Grps E-G Grps E-GOperating Frequencyat 72°F (23°C) 29 kHz 30 kHz 21 kHz 17 kHz 11 kHzBeam Angle 8° 4° 4° 5° 5°Housing Material Polypropylene Polypropylene Polypropylene Polypropylene UPOperating Temperature -4° to +176°F -4° to +176°F -4° to +176°F -4 to +176°F -40° to +300°F

(-20 to +80°C) (-20° to +80°C) (-20° to +60°C) (-20° to +80°C) (-20° to +150°C)Extended Temperature * -40° to +176°F -40° to +176°F -40°F to +176°F -40° to +176°F N/A

(-40° to + 80°C) -40° to + 80°C) -40° to + 80°C) (-40° to +80°C)Operating Pressure Max. 29 psia (2 bar) 22 psia (1.5 bar) 22 psia (1.5 bar) 22 psia (1.5 bar) 44 psia (3 bar)Protection NEMA 6P (IP68) NEMA 6P (IP68) NEMA 6P (IP68) NEMA 6P (IP68) NEMA 6P (IP68)

submersible submersible submersible submersible submersibleRelative Humidity 100% 100% 100% at 140°F 100% at 140°F 100%

95% at 176°F 95% at 176°FMounting 1” NPT or G1A, 1” NPT or G1A, 1” NPT or G1A 1” NPT or G1A 1” NPT or G1ADiaphragm N/A 316TI SS 316TI SS Al / PE AL / PTFEDiaphragm Seal N/A EPDM EPDM EPDM SiliconeWeight 2.6 lbs (1.2 kg) 6.8 lbs (3.1 kg) 10.4 lbs (4.7 kg) 11 lbs (5 kg) 11 lbs (5 kg)Temperature Sensor Standard Standard Standard Standard StandardHeating N/A N/A N/A N/A N/A

* Extended temperature from -4° to -40°F increases signal attenuation, refer to page 6 for information.

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Ordering Information FMU 86X Transmitter

FMU 86 - 1 2 3 4 5 6 7

1 Transmitter0 Single channel level1 Open channel flow2 Dual channel level / flow

2 Electrical ClassificationR General purpose, FM NEMA 4

3 Enclosure1 Field enclosure2 Blind enclosure with plug for remote

controls7 Mounting plate cover for remote controls

4 Controls and Display FMU 860 ONLYA Integral controls and displayC 19” rack-mounted controls and displayD 144 x 144 panel-mount controls and displayE Integral controls and illuminated displayG 19” rack-mounted controls and illuminated

displayH 144 x 144 panel-mounted controls and

illuminated displayK No controls or display FMU 861 ONLYB Integral controls, display and totalizerC 19” rack-mounted controls and displayD 144 x 144 panel-mount controls and displayF Integral controls, illuminated display and

totalizerG 19” rack-mounted controls and illuminated


illuminated displayK No controls or display FMU 862 ONLYA Integral controls and displayB Integral controls, display and totalizerC 19” rack-mounted controls and displayD 144 x 144 panel-mount controls and displayE Integral controls and illuminated displayF Integral controls, illuminated display and

totalizerG 19” rack-mounted controls and illuminated


illuminated displayK No controls or display

5 Relays1 3-SPDT2 5-SPDT

6 Power SupplyA 180 to 276 VAC, 50/60 HzB 90 to 146 VAC, 50/60 HzC 20 to 30 VDC

7 Communication1 Without remote communication2 With INTENSOR interface3 With HART interface4 With RS-485 interface (DMS ready)8 Without remote communication, can

be field upgraded to HART

FDU 80, 81, 82, 83, 84, 85, and 86Sensor

FDU 8 - 1 2 3 4 5

1 Sensor0 FDU 801 FDU 812 FDU 823 FDU 834 FDU 845 FDU 85 (it is recommended to order

the FAU 40 sensor positioner)6 FDU 86 (it is recommended to order

the FAU 40 sensor positioner)2 Electrical Classification

R For nonhazardous areasQ Class I, Div. 1, Grps A-G (FDU 80, 81,

and 82 only)P Class II, Div. 1, Grps E-G (FDU 83, 84,

85 and 86 * only)J CENELEC EEx m II T5 (FDU 80, 81, and

82 only)E DUST-Ex Zone 10 (FDU 83, 84, 85,

and 86 only)* -40° to +284°F (-40° to +140°C)

3 Process Connection FDU 80, 81, 82 and 85 onlyG G1A, polypropyleneN 1” NPT polypropylene FDU 83 and 84 onlyS G1A, 304 SSV 1” NPT, 304 SS FDU 86 onlyG G1A, polypropyleneN 1” NPT, polypropyleneS G1A, 304 SSV 1” NPT, 304 SS

4 Cable Connection1 15 foot (5 m) connection cableA Cable, in feet (max. 1000 ft)

5 FDU 80 / 81 OptionsA StandardB Heater, 24 VDC (an external temperature

sensor is required)

FDU 80F Sensor

FDU 80F - 1 2 3

1 Electrical ClassificationR For nonhazardous areasQ Class I, Div. 1, Grps A-GJ CENELEC EEx m II T5

2 Process ConnectionG G1A, polypropyleneN 1” NPTF 1” NPT, food version (3-A)


FDU 81F Sensor

FDU 81F - 1 2 3

1 Electrical ClassificationR For nonhazardous areasQ Class I, Div. 1, Grps A-GJ CENELEC EEx m II T5

2 Process ConnectionG G1A, polypropyleneN 1” NPTF 1” NPT, food version (3-A)


Accessories FAU 40 Positioner

The sensor positioner is used on solidslevel applications when the best materiallevel return echo will be achieved byangling the sensor. The sensor threadsdirectly into the lower portion of thepositioner.PN: FAU40-2N

20.5"

15

6.9"(176)

7.4"(187)

13.5"(343)Sun Roof

The sun/weather roof is used in outdoorinstallations for extra protection of thetransmitter.PN: 919567-0000

Pipe Mounting Kit

The pipe mounting kit is used to mountthe field housing on a 2” horizontal orvertical pipe.PN: 919566-0001

Endress+HauserThe Power of Know-how

United States

Endress+Hauser Regional Office2350 Endress Place Endress+HauserGreenwood, IN 46143 600 Kenrick, Ste. B-14Phone: (317) 535-7138 Houston, TX 770601-800-428-4344 Phone: (281) 999-1991FAX: (317) 535-8498 FAX: (281) 999-1891

Fogarty Engineering Sterling IPCSales Company Div. of Endress+HauserDiv. of Endress+Hauser 68950 Powell RoadP.O. Box 901 P.O. Box 604Harvey, LA 70059 Romeo, MI 48065Phone: (504) 366-3264 Phone: (810) 752-0700FAX: (504) 366-3816 FAX: (810) 752-0705

TI 013F/24/ae/11.99

Canada

Endress+Hauser Endress+HauserCanada Ltd. Canada Ltd.1440 Graham’s Lane 18103 - 105 Ave. NW #101Unit 1, Burlington Edmonton, AB T5S 2L5ON, L7S 1W3 Phone: (780) 486-3222Phone: (905) 681-9292 FAX: (780) 486-34661-800-668-3199FAX: (905) 681-9444

Endress+HauserCanada Ltée6800 Côte de Liesse, Ste. 100St. Laurent, QueH4T 2A7Téléphone: (514) 733-0254Télécopieur: (514) 733-2924

Mexico

Endress+HauserCalle Camino Sta. Teresa 1384C.P. 10200 Mexico D.F.Phone: (525)568-9658FAX: (525) 568-4183

ultrasonic measurement prosonic - endress+hauser measurement prosonic ... fmu 860 single channel...

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