Level Measurement

prolevel FMC 661

One or two channel transmitter for field mounting with

capacitance probes. Limit switch input and calibration

compensation. System integration via Rackbus RS-485

Application Areas

• The Prolevel measures level in liquidsand bulk solids using capacitance orhydrostatic probes. The transmitter,designed for mounting in the field,determines the level of one or twosilos or tanks, calculates volume andmonitors limit levels.

• Special functions with two probes onone tank: level measurement withreference probe

• Fieldbus system with other E+H leveland flow products via RS-485interface

Features and benefits

• Economical transmitter for fieldmounting

• Simple start-up, simple operatingmatrix, can be configured by E+Hoperating and display programs

• Reliable operation: functionmonitoring of probe and transmitter

Technical InformationTI 233F/24/ae

The Power of Know How

Prolevel in NEMA 4 housing

2

Measuring system

The Prolevel measuring system consistsof:• Prolevel transmitter• One capacitance sensor with

electronic insert• Two capacitance sensors with

electronic insert EC 37Z or EC 47Z

Hazardous areas

The transmitter can be mounted in a safearea and used with certified sensorsmounted in a hazardous area (FM ClassI, II, III; Divisions 1, 2; Groups A-G).

Endress+Hauser

PROLEVELFMB662 123.4

1A1B2A2B3

HV

+

E_

1

2

0/4 to 20 mA

Level measurement with the Prolevel 1 in bulk solids 2 in liquids

Analog outputs

The Prolevel transmitter provides astandard 4 to 20 mA signal per channel(switchable to 0 to 20 mA). Dependingupon calibration, this is proportional toeither level or volume. The start and endof the signal range can be programmedas required.

Relay outputs

The Prolevel is equipped with fiverelays, each with a potential-free changeover contact.• Two sets of two limit relays with

adjustable switch point and hysteresis.

Additional system components for

RS-485 interface option

Hardware• RS-485 interface card or RS 232-C/

RS-485 converter for connection to apersonal computer

• FXA 675 interface card for connectionto the Rackbus

Software for personal computers• Fieldmanager 485: configuration and

display program for small and mediumsized plants

• Commugraph: easy-to-usevisualization program with limitvalue display

3

System integration

Personal computer

Transmitters equipped with an RS-485interface can be connected to a personalcomputer via the RS-485 bus. Ameasuring system then comprises:• Several Prolevel measuring points

(or other units with RS-485interface)

• PC connection (RS-485 interface cardor a RS-232C/RS-485 converter)

Depending on the system topology, up to25 transmitters can be connected atvarious points on the bus, which may beup to 3937 feet (1200 m) long.

Process control system

The Prolevel can be easily and eco-nomically integrated into existingindustrial process control systems.Individual Rackbus RS-485 buses, eachwith up to 25 transmitters, are connectedto the Rackbus via the FXA 675 interfacecard (exceptionally via Monorack RS-485). A gateway connects the Rackbusto standard supervisory systems such asPROFIBUS, FIP or MODBUS.

Connection to personal computer.Capacitance probe 1 .The Prolevel transmitter availableas a one-channel unit with aseparate limit switch input. 2

Integration into process control systems:Two Rackbus RS-485 buses can beconnected to the Rackbus via theFXA 675 interface card. A gatewayconnects the Rackbus to a supervisorysystem.

Endress+Hauser

PROLEVEL

Endress+Hauser

PROLEVEL

Endress+Hauser

PROLEVEL

1

22

3

3

Operating programFieldmanager 485or Commugraph

3

Rackbus RS-485

Converter orPC-interfacecard

Endress+Hauser

PROLEVEL

Endress+Hauser

PROLEVEL

Endress+Hauser

PROLEVEL

ZA 673

RACKBUS

PROFIBUS

FXA 675

Programmable logic controller (PLC)

Supervisory system(PROFIBUS or FIP)

Rackbus

Gateway:ZA 673 PROFIBUSZA 674 FIPZA 672 MODBUS

Channel 1

Channel 2

Rackbus RS-485

Rackbus RS-485

Field transmitterswith RS-485interface

Maximum3937 ft.(1200 m)

FXA 675

Personal computerwith display andoperating software

4

Operating principle Capacitance measurement

The probe and vessel wall (or counterelectrode) form a capacitor with adefined capacitance which is low whenthe probe is in air. As soon as materialcovers the probe, a larger capacitance isformed between the probe and thevessel wall while the resistance betweenthe probe and vessel wall becomessmaller. The parallel circuit of capacitorand resistor (i.e. the impedance) ismeasured.

Signal processing

The Prolevel provides the sensors withpower over an un-shielded 2-wire cable.Every sensor supplies an interferencefree, level proportional, pulse frequencymodulated (PFM) signal via the samecable. The measured value derived fromthis signal is displayed at the transmitterand output as a standard 0/4 to 20 mAsignal. It may also be read by aCommulog VU 260 Z handheld terminalor passed on to a supervisory system viathe optional Rackbus RS-485 interface.

Function monitoring

The Prolevel transmitter monitors thecomplete measuring system from thesensor to the outputs. On fault condi-tions:• The alarm relay LED lights• The current falls to -10%, rises

to +110%, or holds the last value(programmable)

• The limit relays respond according tothe fail-safe mode selected orde-energize (programmable)

• The alarm relay de-energizes

CAir

Insulation Probe Vessel wall

Material

MaterialC

R

12

34

56

Height

7

Volume

Entering a linearization table. Thevessel characteristic is describedby 3 to 30 reference points.

Capacitance measuring principle

Simple linearization

A linearization is made by entering avessel characteristic which describes therelationship between the height (h) andvolume (V) of a vessel.The most common application, ahorizontal cylinder, is pre-programmedin the transmitter. A linearization tablefor any other vessel shape, e.g., a tankwith a conical outlet, can be simplyprogrammed by entering up to 30reference points.

5

Selection/design Transitter selection

Prolevel can be selected according tothe requirements of the measuring point:• Economical version without display

or keypad; can be operated by theCommulog VU 260 Z handheldterminal

• Version with display (also illuminated)and keypad

• Rackbus RS-485 interface option forsystem integration and remoteoperation of the transmitter

Prolevel product family

The Prolevel transmitters available:• Prolevel FMC 661, single-channel

version supports one capacitance orhydrostatic probe with a separatelimit switch input.

Prolevel with display and keypad Prolevel version without display or keypad

Dimensions and mounting

details

∅ 0.18"(4.5)

Min. 2.05"(52) between

units

Min. 2.72"(69) between

mounting holesof additional units

V H

E

12345

PROLEVELFMC 661

7.9"Mtg.(201)

MountingHole (4)

10.85" Mtg.(275.5)

10"(253)

4.13"(105)

11.5"(292)

Knock-outconduitentry (9)

Space required for mountingmultiple units

Dimensions are in inches (mm)

6

Installation Mounting

The NEMA 4 housing is wall-mounted orpost-mounted (1 or 2” pipe) indoors oroutdoors. When mounting outdoors, anall weather protection hood is recom-mended. Ambient temperature limits ofthe Prolevel should be observed forproper operation of the electronics.Refer to Accessories, page 13.

Hazardous areas, sensors

Probes and sensors with appropriatecertification may be installed in explo-sion hazardous areas. The transmittermust always be installed outside thehazardous area. All local regulationsconcerning installation must be ob-served.

Electrical connection Terminal strip

The terminal strip, suitable for cablecross-sections up to 18 AWG (two-conductor, non-shielded), is located in aseparate connection compartment. in thelower portion of the housing. The cableentries are prestamped for easy removal(5 x Pg 16, 4 x Pg 13.5 at the bottom,4 x Pg 16 in the rear).

Prolevel terminal strip. Electrically isolated circuitsare indicated by gray lines

[EExia]IIC [EExia]IICRS-485

B DGND A

L+ L-L1 N

L+ L-L1 N P

E

Leve

l Sen

sor

1

RxD

/TxD

-P

RxD

/TxD

-NR

S-4

85

16 to

60

VD

C85

to 2

53V

AC

20 to

55

VA

C

0/4

to 2

0 m

A

Inpu

t lev

el 1

Inpu

t lev

el 2

1 2 3 4 5 81 82 91 92

1 2 1 2

3111 21 41

1b1a 2a 2b

51 603212 22 42 52 613313 23 43 53 62

- + - +

DG

ND

Leve

l Sen

sor

2

NOTE: When laying cable in hazardousareas, the maximum permissible valuesfor U, I, R, L, and C (see Certificate ofConformity) and all local regulations areto be observed.

7

Electrical isolation

Current output, relay outputs, powersupply, sensor input and bus inputs areelectrically isolated from each other(safe isolation to DIN/VDE 0160). Bothsensor inputs are intrinsically safe andelectrically isolated from each other.

Overvoltage protection

The external overvoltage protection unitHAW 262 for signal outputs is recom-mended for protecting the transmitterfrom votage peaks, especially whenmounted in the field. The overvoltageprotection unit HAW 261 should be usedto protect against main power voltagepeaks. Contact Endress+Hauser foradditional information.

Electromagnetic compatibility

The interference immunity of theProlevel has been checked to a teststrength of 10 V/m. The signal deviationover the total frequency range of 10 kHzto 1 GHz is always less than 1%. Overwide frequency ranges, the deviation issignificantly lower.

Bus installation Rackbus RS-485

Normally, up to 25 Prolevel transmitterscan be connected to the bus. The actualnumber depends on the topology andconditions of operation. The busconnection requires:• Connecting cable (2-wire, twisted and

shielded)• Cable length maximum, 3937 feet

(1200 m)

Bus address

Every transmitter is given a uniqueaddress which is configured at the DIPswitches at the terminal strip.

1 2 4 8 16 32

150 Ω 392Ω392Ω

+5V

(=10)

ONOFF

ONOFF

Bus address

Termination

RS-485 [EExia]IICB DGND A

L+ L-L1 N 1b1a 2a 2b

- + - +

Bus address and terminal resistance switch of theProlevel. The setting shown is standard for allProlevel transmitters except the last one on the bus.

Termination

For reliable transmission of the commu-nication signal, set the terminal resis-tance at the PC board and the furthestProlevel from the board to 150Ω.The bus power is provided by theRS-232C/RS-485 adapter

8

Bus installation, PC Personal computer

A personal computer is connected usingeither an RS-485 PC interface card or anRS-232C/RS-485 converter (both withelectrical isolation).

RS-485 PC interface card

The card is configured for use as theCOM 3 interface port. Also supplied forthe bus connection is a 25-pin plug withscrew terminals.

Terminal 1: Bus shieldTerminal 17: Data A (RxD/TxD-P)Terminal 16: Data B (RxD/TxD-N)

GND22

4

18

8

14

12 13

23

3

19

7

15

11

24

2

20

Bus Shield

RxD/TxD-P (Data A) RxD/TxD-N (Data B)

6

16

10

25

1

21

5

17

9

Wiring PC interface card plug

Master

Rpull

Rt

Master

Rpull

Rt

1 OFFON

60 6162

2 EOFFON

OFFON

606162606162

1 OFFON

60 6162

2 EOFFON

OFFON

60 61 6260 6162

GND

GND

Tree Structure

Serial Structure

Longer branch

End unit

End unit

Rt150 Ω

Rt150 Ω

Bus topology. The master is a PC interfacecard or converter. When planning thesystem, attention should be paid to thepossible segmentation of the bus accordingto individual plant sections.Serial, maximum 3937 ft. (1200 m)Tree, total length 3937 ft. (1200 m)Bus shielding must have electrical continuitythroughout the bus.

61 6362

Example for wiring thebus to the Prolevel

Bus installation, topology

9

12345

6

8

9

7

390 Ω390 Ω

Wiring RS-232C/RS-485 converter plug

Operation Simple operation

The six keys on the front panel are usedto configure the instrument or call upmeasured values; parameters aredisplayed on the 4-digit LCD.The transmitter is configured via anoperating matrix, whereby each field isselected by the “V” vertical or “H”horizontal keys. Parameters are enteredusing the +, -, and → keys. Pressing the“E” key stores and registers the enteredvalue.

Operating matrix

Whether you configure the Prolevel viathe keypad, with the handheld terminal,or remotely via the Rackbus RS-485interface, the easy to use operatingmatrix ensures programming proceduresare uniform and clear.

Measuredvalue

Emptycalibration

Fullcalibration

Outputcurrent

SwitchpointV H

E

+-

Fail-safemode

Hysteresis Relay atalarm

Linearization

1A

1B

2A

2B

3

Level inputmode

Tablenumber

Inputvolume

Minimal parameters are entered to configure the Prolevel

Handheld terminal VU 260 Z

All Prolevel transmitters can be operatedby the Commulog VU 260 Z terminalwhich displays parameters, measuredvalues, and operating status.. Its largedisplay gives simple, self-explanatoryinformation on all parameters. Thetransmitter continues to measurenormally while data are entered or read.

PROLEVEL

VU 260 Z Commulog attached to Prolevel withoutkeypad or display. Communication socket islocated in wiring connection compartment.

RS-232C/RS-485 converter

The bus connector is supplied with a9-pin plug with screw terminals

Terminal 5: Bus shieldTerminal 3: Data A (RxD/TxD-P)Terminal 8: Data B (RxD/TxD-N)

Refer to Accessories, page 14 forordering information

10

Operating program

Remote operation and display

Prolevel transmitters with a RackbusRS-485 interface can be operated frompersonal computers. Each transmitter isaccessed on-line via its individual busaddress. The operating program usesthe standard operating matrix in whicheach parameter field can be quickly andeasily selected.

Fieldmanager 485 operating

program

The Fieldmanager 485 operatingprogram is a simple, economicalconfiguration and display system forsmall and medium-sized plants. It canrun on any AT PC having an MS-DOSoperating system. A self-explanatorymenu, available in English and otherlanguages, offers a total of nine menusfor the following functions.• Summary of connected and operative

transmitters, the so-called active list• Selection of the Prolevel transmitters• Configuration and calibration of the

transmitters via the operating matrix• Presentation of measured values as

moving columns• Backup of configurations by the

up/download functions• Setting of the COM port• Terminal program for on-line

communication with individualtransmitters

Prolevel No. 2 FMC 662 LIC 005 LIC 001 V-H Position 00

F1: 0 to 31

Measuredvalue

Empty"calibration"

Full"calibration"

Output current

Relay 1switch point

Relay 1fail-safe mode

Relay 1hysteresis

Relay 1at alarm

LinearizationLevel input

modeTab. No. Input volume

Calibrationmode

Offset

Select V H position with cursor keys - or press ESC and enter V H positionTo configure, press RETURN key

Sensitivity

F2: 32 to 63F3: Ger. AdrF4: RS-485

F5: Env. curveF6: Matrix

F7:F8: Up/Down

F9: TerminalF10: Exit

Section of operating matrix usedfor configuring the Prolevel(Fieldmanager 485)

Fieldmanager 485 Endress+Hauser Version 5.1

Fieldmanager 485 Endress+Hauser Version 5.1

No. No..

00010203040506070809101112131415

.

17181920212223242526272829303132

--------------------------------------------------------------------------------

FMC 662FMC 66FMC 662FMC 662FMB 661

-------------------------

FMU 867FMC 662FMC 662

---------------

E+Hspecific Customer specific Customer specific

E+Hspecific

LIC 001 LIC 002LIC 003 LIC 004LIC 005 LIC 006LIC 007LIC 008 LIC 009

LIC 101 LIC 102LIC 103LIC 104 LIC 105

F1: 0 to 31F2: 32 to 63

F3: Ger. AdrF4: COM-port

F5: Env. curveF6: Matrix

F7:F8: Up/Down

F9: TerminalF10: Exit

Diagnose code: 0Diagnose code: 0

00: LIC 001

0.0

20.0

75.5 %

40.0

60.0

80.0

100.0

LIC 004

0.0

20.0

58.0 %

40.0

60.0

80.0

100.0

LIC 002

0.0

20.0

31.0 %

40.0

60.0

80.0

100.0

01: LIC 003

0.0

20.0

23.7 %

40.0

60.0

80.0

100.0

F1: 0 to 31

Alt F1 - Alt F2 -

F2: 32 to 63F3: Ger. AdrF4: COM-port

F5: Env. curveF6: Matrix

F7:F8: Up/Down

F9: TerminalF10: Exit

Live list of connected transmitters.Shown are the individual instrumentaddresses on the Rackbus (Column1), which are Endress+Hauser specificdesignations (Column 2) as well asthe customer-specific measuringtag names (Column 3).

Display of measured values oftwo Prolevel units using theFieldmanager 485 operatingprogram.

11

Visualization

2000

1800

1600

1400

1200

1000

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

200

200

160

160

120

120

80

80

40

40

0

0

771 lbs (1700 kg)60 % 20 t 62 t 80 %

76 %

199.5 t

180 hl

Code 401

1: LIC 102 2: LIC 103 10: LIC 104 10: LIC 1050: LIC 101

Store West

F1 Store West F3 Store North F5 Store SoutheastF2 Store East F4 Store South F6 Print

Date 09.12.02 Time 08.15

100

80

60

40

20

038 hl

12: LIC 107

F7 Entry mode F9 HelpF8 Instrument status F10 End

13: LIC 108100

80

60

40

20

020 %

13: LIC 109100

80

60

40

20

062 %

14: LIC 110100

80

60

40

20

050 t

14: LIC 111

0: LIC 100

11: LIC 106

Display of a measuredvalue group - function keyssimplify operation

Commugraph

The Commugraph visualization programis the ideal support tool for the operatingprogram. It is easily installed andoperated. The principle functions are asfollows:• Analog display of measured values as

columns. 12 measuring points can bedisplayed simultaneously, 60 in all.

• Transmitter status display• Limit value display. When the limit

value is exceeded, the columnchanges from green to red.

• Level display as numerical value withtechnical units

• List of connected transmitters• Printed log of measured values

0: LIC 100

200

Transmitter no.

Limit valuecolumnrelay 1

Limit valuecolumnrelay 2

Measured valuecolumn

Measuring point tag no.

Measuredvalue

Technical unit Instrumentstatus

160

120

80

40

0142.5 t

Code 400

Display for individual measurement point

No. Content Meas. val. Units FactorMeas.point

00121010111213131414

5.180.000.0720612.4012.536.406.139965248.4382.6871.85

111111111111

04010

Operating mode...None ....Operating mode...@04, 03,...@04, 04,...@04, 05,...@04, 06,...@04, 07,...@04, 08,...@04, 09,...Operating mode...Operating mode...Operating mode...Operating mode...Operating mode...

00000

ft.ft.ft.gal/secft.ft.ft.ft.ft.in.in.in.

3

Rain retention basin 1Rain retention basin 2Rake controlInflow measurementPresetting basin 1Presetting basin 2Filter basin 1Filter basin 2Digestion tankFlocculantNeutralization NaOHNeutralization HCI

LIC 100LIC 101LIC 102LIC 103LIC 104LIC 105LIC 106LIC 107LIC 108LIC 109LIC 110LIC 111

No. Meas.point

Code Status text

01234567891011121314

LIC 100 LIC 101LIC 102LIC 103

LIC 104 LIC 105LIC 106LIC 107LIC 108 LIC 109LIC 110

Printout of measuringpoints and theirmeasured values

Display of transmitter status

12

General

Input

Function FMC 661: Single channel transmitter for level measurementwith capacitance or hydrostatic sensing probes

Input signal Two PFM (Pulsed Frequency Modulated) signals

Interface 0/4 to 20 mA, communication with VU 260 Z handheld unit, orDMS RS-485 (optional)

Reference conditions To DIN IEC 770, TU = 77°F (25°C) or as specified

Input power 85 to 253 VAC, 50/60 Hz or 20 to 50 VAC, 50/60 Hz.16 to 60 VDC, residual ripple within the permissible voltage range

Power consumption 7 W maximum

Safe electrical isolation Between power supply and signal output, CPU, DMS RS-485interface, relays and other electronics

Temperature range Operating temperature: 32° to 140°F (0° to 60°C)Limiting temperature: -4° to 140°F (-20° to 60°C)Storage temperature: -40° to 176°F (-40° to 80°C)

Electromagnetic compatibility Better than 1% of full scale value.Immunity to EN 50082-2 (E 1993, VDE 0839 Part 82-2)Emission to EN 50081-2, industrial range (VDE 0839 Part 81-1),industrial standard NAMUR, with 10 V/m

Climatic class To DIN 40 040 Table 10 “R”: unit in the open or outside areas.Annual average humidity 95%, dew permissible

Vibration resistance To DIN 40 040 Table 6 “W”

Protection rating NEMA 4 with closed housing and cable entries of sameprotection type. With open housing, NEMA 3; with openwiring compartment, NEMA 1

CE mark By attaching the CE mark, Endress+Hauser confirms that theProlevel has been successfully tested and fulfills all legalrequirements of the relevant CE directives

FM approvals FM approved intrinsically safe, Class I, II, III; Divisions 1,Groups A-G

Housing material Body, PC (polycarbonate) / ABS (Acrylnitrile Butadiene Styrol),RAL 5012 (blue)Transparent cover, PC (polycarbonate)

Mounting Wall or post mounting, vertical recommended

Weight 5.4 lbs (2.45 kg)

Connection cable For probe or switching input: two-wire, unshielded, maximum25 Ω per wire

Signal Pulse frequency modulated (PFM), current pulses which aresuperimposed on the base current from capacitance orhydrostatic electronic inserts

Electronic insert EC 37 Z / EC 47 Z capacitance inserts

Intrinsically safe isolation Between sensor circuit and other electronics as well as withthe other channel

Analog output

Output One or two outputs, 0 to 20 mA, switchable to 4 to 20 mASignal underflow, -2 mASignal overflow, +22 mA

On alarm Switchable to +110%, -10%, or hold last measured value

Electrical isolation Analog output electrically isolated from the CPU and the otherelectronics

Current limitation 23 mA

Temperature coefficient 0.3%/10 K of range end value

Warm-up time 1 second

Adjustable damping 0 to 99 seconds (T90 - time)

Maximum load 600 ΩLoad effect Negligible

Technical data

Output

Environmental conditions

Power supply

Construction

13

Relay

Version Five relays, each with a potential-free changeover contact

Relay function Two sets of two limit relays, each set monitoring a limit value.One alarm relay, de-energizes on fault condition

Hysteresis Switch points and switching hysteresis of limit relays freelyadjustable

Fail-safe mode Selectable minimum or maximum

Switching capacity AC: 6A, 250 V, 750 VA at cos ϕ = 0.7; 1500 VA at cos ϕ = 1DC: 6A, 250 V, 200 W

Electrical isolation Relays electrically connected to each other, electricallyisolated from other electronics

Displays

LCD display Four-digit measured value display with optional back lighting,with bargraph (analog display of current with 10 segments)

LEDs One yellow LED for every limit relay to indicate relay switchingstatus, LED lit indicates relay energizedOne red LED for the alarm relay; lights on alarm and flasheson warning (LED on indicates alarm relay de-energized)One green LED indicates power on

Communication interfaces

Keypad Six pressure membrane keys (optional)

DMS RS-485 (optional) Maximum of 25 units can be connected.When using other Endress+Hauser instruments with DMSRS-485 interface, the following applies:

- maximum 25 units when mounted in safe area- maximum 10 units when one or more is mounted in a hazardous areaBaud rate, 19,200 bit/s, fixedCable, shielded twisted pairs (shield connected to DGND onProlevel)Topology: serial bus, electrically isolated, tree structure optionalLength: maximum 3937 ft. (1200 m), including taps or branches(taps under 10 ft. do not count)Transmitter address: via 6-pole DIL switches in connectioncompartmentTermination: via 4-pole DIL switches in connection compartmentElectrical isolation: bus inputs are electrically isolated from theother electronics

Commulog VU 260 Z Handheld terminal, connected to communication socket inProlevel connection compartment

Output (con’t.)

13.5"(343)

Weather protection hood

Post mounting kit

6.93"(176)

7.38"(187.5)

All weather protective hood

Material:Aluminum, blue lacquered finish Part no. 919567-0000304 SS Part no. 919567-0001Weight: approximately 2.2 lbs (1 kg)Includes mounting hardware

Post mounting kit

Material:Galvanized steel 1”, Part no. 919566-1000 2”, Part no. 919566-0000304 SS 1”, Part no. 919566-1001 2”, Part no. 919566-0001Weight: approximately 2.2 lbs (1 kg)Includes mounting hardware

Accessories

3.7"(94)

2.13"(54)

Converter dimensions

RS-232C/RS-485 interface coverter

• PC connector, 25-pin Min-D plug.For bus 9-pin Min-D jack, pinassignment on bus side (refer towiring for converter plug, page 9).Plug supplied with terminal screws.

• Baud rate, 19,200 bit/s• RS-485 output electrically isolated• Power supply, 15 VDC; power unit

230 VAC or 115 VAC• RS-232C interface can be configured

as DCE/DTE via selector switch115 VAC: Order no. 016398-0050230 VAC: Order no. 016398-0000

6.06"(154)

3.94"(100)

J1

J2

J5

I JJ9

BR1

BR2

RS-485 PC interface card

• Connector, 25-pin Min-D plug. Forpin assignment, see page 8. Plugsupplied with terminal screws

• Baud rate, 19,200 bit/s• Configured for COM 3, address 3E8H,

with protective ground at Pin 1 ofconnector

• Slot, 8 or 16 bit• RS-485 output electrically isolated

Order no. 016399-0000

14

RS-485 PC interface carddimensions and jumperpositions (grey = default)

Ordering information Prolevel FMC 661, single channel transmitter

FMC 661 -

1 CertificateR For nonhazardous area useN FM IS; Cl. I, II, III, Div. 1, Grps. A-GQ CSA IS; Cl. I, II, III, Div. 1, Grps A-G

2 Housing1 NEMA 4 field mounted housing

3 Keypad and displayA Keypad and display in housingB Keypad and illuminated display in housingC Without keypad and display, for remote communication operation

4 Switch output2 Two signal relay pairs, one fault SPDT relay

5 Power supplyA 85 to 253 VAC, 50/60 HzB 20 to 55 VAC, 50/60 HzC 16 to 60 VDC

6 Communication1 Communication with VU 260 Z2 Rackbus RS 485 / connection for VU 260 Z

1 2 3 4 5 6

15

Prolevel FMC 661

Capacitance Hydrostatic

Level Switch

Prolevel line

• ApplicationsLevel and volumetric measurement in liquids and bulk solids

• VersionsSingle-channel transmitter with limit switch input

• SensorsOne capacitance or hydrostatic probe

• Extra functionsVessel linearizationIndependent limit detectionAutomatic calibration correction for changing levels

• Limit value/fault indication Two sets of two relays, each set monitoring a limit value; one alarm relay

• Options Display with keypad, illuminated display with keypad and RS-485 interface

Endress+HauserThe Power of Know How

United States

Endress+Hauser, Inc.2350 Endress PlaceGreenwood, IN 46143Phone: (317) 535-7138888-ENDRESSFAX: (317) 535-8498

TI 233F/24/ae/02.02© 2002 Endress+Hauser, Inc.

Canada

Endress+HauserCanada Ltd.1440 Graham’s LaneUnit 1, BurlingtonON, L7S 1W3Phone: (905) 681-9292800-668-3199FAX: (905) 681-9444

Mexico

Endress+HauserPaseo del Pedregal No. 610Col. Jardines del Pedregal01900, Mexico D.F.MexicoPhone: (525) 568-2405FAX: (525) 568-7459

For application and selection assistance,call 888-ENDRESS

For total support of your installed base,24 hours a day, call 800-642-8737

Visit us on our web site, www.us.endress.com