D p e ra tio n a n d S ig n a l
||p c e s s in g
Principle of Operation An ultrasonic pulse emitted from the sensor is reflected back by the surface of the material or liquid and is received by the same sensor as an echo signal The product height or water level is then calculated from the run time of the ultrasonic signal (echo level determination).
Simple Operation
The keypad on the front panel is used to configure the transmitter and call up parameters, which are shown on a 4 1/2 character display
Input dialogue is based on the standard Endress+Hauser operating matrix in which every input field is quickly and easily selected using the -V - (verticai) and -H - (horizontal) keys. Parameters are simply entered using the three keys
— . - and are registered and stored once the -E> key has been pressed.
[V ΐ e i
Only a law input steps are required lor calAnating an standard applcalnns.
Intelligent Software with Fuzzy Logic Elements
The Prosonic transmitter is based on state-of-the-art evaluation methods including fuzzy logic elements for intelligent echo analysis. No other special procedures are required as this method enables the true 'evel echo to be clearly disting, s'-ed
• sporadic reflections (e g, from agitator blades),
• interference echoes arc noise (e g.
from filling)
• multiple reflections (e.g. with closed tanks).
Even with almost unfavorabie mounting points, the advantages c‘ continuous, non-contact ultrasonic measurement can be used by activatirg a special fixed target suppression -c d e or filtering factor.
Simple Start-Up The time required for start-up is minimised by using preset operating parameter vatiues. Selecting just one parameter automatically sets the measuring line to one ά five typical applications.
• liquid
• vessels with rapid changes of liquKi
• fine-grained bulk solids
• coarse-grained bulk soTids
• conveyor belts
SoHIcivofl I Punp
Remote O peration Handheld term inal Operating the Prosonic uansmitter is even easier if it is connected via a serial interface. All values can then be entered using a handheld terminal. The user has comprehensive and detailed information on Inputs both on-site and in the control room. The measurement remains totally unaffected during the interactive input.
Two different handheld terminals are available:
. Commulog VU 260 Z is used with the serial interface for the INTENSOR protocol. It can bo connected to all Endress+Hausor instruments with an INTENSOR protocol.
• Universal HART communicator via the serial interface with the HART protocol (TypoC).
Electrical Connection A minimum resistance must be presi in the circuit lor correct trarwmission the communications signal to take p;
(see Technical Data).
The handhold terminal is connected
• directly to current output 1 of the transmitter or
< to a communications resistor In general: The hartdheld tormina;
be connected anywhere in the signal circuit as long as there is a resistance between its terminals which is larger I ■
P
ip II II
Technical Dau Maximum load 600 Ω Communications resistor.
Function
A module plugged into the electronics allows the first current output to also be used as an interface for serial data transmission.
A digital communications signal is superposed on the 0/4...20 mA signal so that all data are available lor remote parametering (SMART protocol) All other instruments connected to the current output are totally unaffected by this digital signal.
The module can be retrofitted
II I I
Maximum cable length for current I · output: 300 m, screened c ^ le is I P recommended, maximum capacitance
II P
i
. 1ΰο. li tOf
m
■
I I
■
All-Weatbai Cover for the Protective Housing
Material: aksniniLinn. blue lacquered (Order No 919 576-0000);
stainless steel 1.4301 (Order No. 919 567-0001) Weight approx 1 kg Mounting screws supplied Post Moonting Material; galvanised steel (for 2* post Order No 919 566-0000.
for r post: 919 566-1000).
stainless Steel 1 4301 (for 2* post Order No 919 566-0001;
for 1· post. 919 566-1001);
Weight: 1 kg Mounting screws and ni Comraulog VU 260 Z Handheld terminal for Prosonic with integrated senal interface and INTENSOR protocol (see Technical Information Tl l40^XVe) HART Communicator DXR 276 Handheld terminal with integrated senal interface tor HART protocol (see operating manual BA 139F/00/O) Converter RS-232 C/RS-485 Interface
• Connector for PC 25-pm Min-0 plug for bus 9-pin Mm-D plug, plug supplied with screw terminals . Baud rate 19 200 bit/s
• RS-435 output electrically isoiaied.
• Power su p^: 15 V DC.
Power unit 230 V or 115 V to order
• RS 232 C rnerface. can be configured as DCEDTE
Order No 016398-0000 for 230 V / 016398-0050 for 115 V
Overvoltage Protection and Supply Unit for Sensor Heating i:.
IP 6 6 Protective Housing Power supply unit (24 V DC) tor | j|
heating with integrated overvoltage protection lor power supply . Power supply 230 V
(♦15V-20%)
• DtfTtensions see Page 8 (IP 6 6 protective housing) Order No 215095-0000 RS-485 PC Interface Card
• Connector: 25-pin Mm-D plug, plug supplied with screw terminals
• Baud rate: 19 200 bit/s
• Configuration; supplied configured tor COM 3. address 3E8H. with protective ground at Pm 1 of connector
• Slot; 8 or 16 bit
• RS-485 Output eiectrica'ty isolated O'oer No 015599-0000 Spare Sensor Cable
• Connection f.-pm the Prosonic FMU 8 6_ transmitte- to the FDU 80 FDU 81 FDU 82 ss'so’s
Order No 93=278-1020
• Connect 0- i'c-i the Prosonic FMU
=c_ trar's- re- to me FOu 83 FDU 8 4
=CU85si-s:-5 C'OerM: S;iVB^^Z2^
Overvoltage Protection in IP 6 6 ^ Protective Housing Overvoltage protection unit for powe
supply I I
• Dimensions see Page 8 (IP 6 6 protective housing)
Order No 215095-0001 |||
Power Supply Unit for Sensor Heating in IP 6 6 Protective Hoi Power supply unit (24 V DC) for s·
heating
• Power supply 230 V (+15%/-20V)
• Dimensions see Page 8 (IP 6 6 protective houS'rO' Order No 215095-0002
1
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■
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O u n tin gm m n
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m
m
% m m
n
M
n
m m
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1
1
Explosion Hazardous Areas For certified systems, me sensor orty may be installed « the explosion hazardous area. The transmeer must always be installed in a safe area Al local regulations concerning r must be observed
Π
--- --- UHS.Oimensjons of
E le c t r ic a l C o n n e c tio n
Terminal strip oI th FMU B60...B62.
The electrically
Terminal Strip
The terminal strip lor cable diameters up to 2 . 5 mm* is in a separate connection chamber. The cable entnes are prestamped (or easy removal (underside for 5 x Pg 16, 4 x Pg 13.5, rear for 5 x Pg 1 6).
Power Supply
• Alternating volu
soeoK
P
50Λ0
-a
Sensor Cable
Connection is with the cable supplied or by using an extension via a terminal box with commercial. two<ore screened cabling (also available from E+H).
Maximum values:
up to 6 Ω per core, maximum 60 nP.
24 V 1 iOnOH.
Power consumption maximum 15 VA, maximum 65 mA at 230 VAC
• Direct voltage ( ■
20 .30 V (residual ripple within tolerance), integrated reverse connection protection ftjwer consumption: maximum 1 2 W |p
°:»
(typical 8 W). maximum 500 rnA at 24 VOC
h i ISO Connecting to a separat key pad ■
' i r P Electrical Isolation
Current output, relay outputs, power connection a"" sensor input are all electrically isolated from one another With the FMU 862. the two current outputs a'e eiectncaliy connected to one another, as are the two sensor inputs.
A separate keypad is connected to thP transminer electronics via a cable with a 9-pin sub-mimaiure D corwector (c *
supplied) p
^ p n pL
J
0 H H 1
-mm
T e c h n ic a l D a ta
m
0 | q n
1
1
n
n
Signal Inputs
• Sensors
one ProsonicRXie . unit (nomina) ranges from 5 _ ^ m).
FMU 862: twoPloscrjc FDU 8 unte (can be Citferent). Sgnal input change-over to one cycle per second
• Separate swecfwig input external pass·* Srrat detector (mater or breaker contacs) or PNP switch, e g.
Liquiphant or Soiphant (24 V. maxsnum short-circuit arrent 20 mA)
• Separate terrpeaire sensor (or temperause compensation ot run time in flumes, especially for sensors with heating mts.
Analogue Ontpots 4.. 20 mA. s*axac.e to 0...20 mA, Rur-a» 600 a fir* plug-in module for serial interface).
FMU 862: same va'ues (or second channel. s-.vitchaDie with Channel 1 to 0 .,20 mA
Output current Srnit 24 mA
• Displays
- Display (LCD): 41/2 character display of measured v^-e. lumination optional:
with segmen trsciay of current in 10% steps S O zrrer displays (fautt.
Signal overffca: '_ncerftow.
commur.ic a ors) - LEDs: ore yet^· LED for each relay
to indicate Eui or switching status of the relay, a Sghsd LED indicates
"relay energisea· The alarm relay LED lights during ncrmal operation.
A green LH) also lights during normal operation but binks on the appearance ot a warning.
- Tctaliser (sarxiard fer FMU 861, cc: ora' ‘o' e."J 562. cannot be reset six charac»s)
• Relays
Three or five hcecendent relays, each with one poeHitiai-free change-over contact
-Limit va.ues:4A250V;
1000 VA at cos 0 = 0.7, 35VDCa'xjT(X)W - Frosomc '.rtn BS-485. as 3-relay
-.e-slon c*y
- programmable fmctens (freely ad|ustabie for each relay, cut-m/cut-out switchpoirt. (reefy adjustable)
fault indicatjon, km switches (swilctwig delay.
aBernating pump control).
pulse transmitter {ioi FMU 861 and FMU 862 with flow rale measurem^r n open flumes, (or aOwabrg externa counters or samplers, max. oourtng r ^2Hz. pulse wth 2 0 0 ms).
Hme pulse transmitter {tor FMU 861 and FMU 862 for bming control of a sampler or screen cleanirtg control) tendency indication back water alarm
HtWrluidion IPMUtw ifUttl filUM2
• Synchronisation cr Parallel connection for ten instruments f iutier sensor cables are to be laid r>ext ID each other over long distarxres
• For rapid diagnosis keerface for Endress+Hauser Service
• RS-485 interface Venlons, Operating Conditions Dimensions: see mouruirrg instructKcns temperature range for opera'uon:
-20...+60 °C (storage: -40_.+80 "C) Bectromagnetic compatibity:
• AC power supply:
interference immunity to EN 50082-2 Interference emission to EN δΟΟΕί-·*
• DC pxjwer supply.
interference immunity to EN 50082-2 Werference emission to EN50081-2 P 6 6 protective houstog with electronics and operating elements
• Materials: synthetic housing body (PT/ABS). transparerB cover PC (polycarbonate), blue front panel with tag area
• Weignt: 2.6 xg
• Protection (DIN 40 050); IP 6 6 with Closed housing and Pg with same protection (IP 40 with open hous.ng IP 10 when connection chamber opened)
• Relative humidity 95 % average ainual humidity, condensation permiss'ble (DIN 40 040 Tyce R)
• Mechanical load: 2 g (10 ,55 Hzi =-c 15 g for 11 m,s (DIN 40 C40 Tyce
ConUnued: Vertlons, Operatino Conditions
« IP 40 plastic housing with electronics lor connection of a separaie operating
Accuracy and Eftocu ol Variable·
- Measunng unceiwity 0 2% lor
II
ivieesuiiiiu ■·> --- - a · maximum measiaaO
Protection (DIN 40 050): IP 40 with same protection lor Pg Weight. 1.0 kg
. IP 10 mounting pianel with electronics lor connection of a separaie operating
ΙΤΙΟΛΗΙΒ^Μ -r -- -
srrxx>th surface, typical (the sun of lineanty. hysteret* and reproducibility) - Maximum resolulion 1 mm for FDU · ■ - Load effects insignificant m the |
permitted range
Protection (DIN 40 050): P 10 Weight: 0.8 kg
. Separate operating unit (keypad and display)
(Control panel or rack mounted version. 3 m long connedoi cable to transminer electronics supplied Protection (DIN 40 050): tfMO
P rod uct S tru ctu re Prosonic TransmlUer FMU
86
C*rtmc«l··
R Siwterd (non-c«ftifi»d) U CSAGeotralPuipo··
Houclng lof ·Ι«ΐΓο绀·
20 »V 1·Ηκ·φ«0ΐΡ00ΐ
WRhouMertao·
Smi w«h IN I (: NSOn praiooQl
I__ I I_____ __ j product designation S u p p le m e n ta ry
D o c u m e n ta tio n
□ Summary of non-contact level measurement using the Prosonic ultrasonic series Product Information PI OOSFAXVe
□ Prosonic FDU 80...86 Technical Information Tl 189F/00/e
□ Sunvnary of non-contact level measurement usmg the Ntvosonic ultrasonic senes System Information SI OOSF/OCVe O Prosonic P FMU 800
Technical Information Tl 212/00/e
Manchester M23 9PH Tel no. 0161 998 0321 Fax no. 0161 998 1841 Telex no. 668501
Tel no. 0181 903 9569 Fax no. 0181 903 9312 Telex no. 668501
PO Bo* 2 2 » D-79S/4 am Rhotfi Germany Tel (0«S21)9n.-02 Fax (07621)975345
Endress+Hauser
Nothing bails know how
Immersible Aerator ΤΑ
For Waste Water Aeration and Water Treatment
8
The self-aspirating FRINGS Immersible Aerator represents a proven aeration concept for waste water aeration and water treatment. It is a combination of the wellknown FR IBO R A TO R with a reliable immersible motor. It is a pump, a blower, and a mixer - all combined in one unit. It operates totally immersed, either resting on the bottom of the basin or tank to be aerated, or hanging on a float. Its principal features ate a star-shaped impeller coupled to the motor shaft, a stator with legs surrounding the impeller, and the air pipe leading to the atmosphere above the water level.
Operation
The impeller turns inside the stator, creating a vacuum at the eye of the impeller. This vacuum is filled with air that enters the impeller through the air pipe. Water streams into the impeller through openings between the motor and the stator. The air and water are mixed by the impeller intimately, and the mixture is discharged into the diffuser channels of the stator. Due to the rotation of the impeller and the stator, the gas is broken up into very small bubbles.
The large interphase for gase transfer thus created and the high turbulence of the gas-liquid jets leaving the stator allow high rates of oxygen transfer and good oxygen utilization.
The aerator has two 2 The jets leaving the st
s of influence:
r move close to and parallel to the
bottom of the basin at high velocity. Hicy allow the direct and homogeneous aeration of basins with diameters up to 6 meters in dependence of the type of unit (shown as « A in figure 1 and dimensioned in table I ). Aerators in basins of such diameters yield the highest values for oxygen transfer. For aeration of waste waters with high BOD-U»ads (1 . 0 0 0 mg/litcr and more), Isasin diameters sliouki lie sized according to these figures.
For the treatment of waste water from municipalities, the basin diameter can be much larger, because a large zone develops around o A which is aerated by the air lift action of the rising air bubbles ( 0 B in figure and table I ). In all cases, the aerator provides for intimate mixing of the basin contents and docs not allow settling of solids to lake place due to high liquid velocities in the basin (up to 1 0 m/sec in the directly aerated zone and at least 0 . 2 m/sec in the outer zone).
To make the best use of the operational characteristics of the immersible aerator, a deeper basin with smaller cross section is preferable over other designs if there is a choice.
Oxygen utilization increases with depth. Higher values for oxygen transfer and transfer efficiency are the result. From a water depth of abt. 4 m up. the immersible aeratiK can be 0|tcrated with pressurized air (blower). 'Hiis way. oxygen transfer rates of more than 1 0 0 kgs/h and oxygen transfer efficiencies of 2.0 kgs Oj/kWh and more can he reached in clean water under standard conditions, depending on the basin size and the water depth.
Ill principle, (he FRINGS Inimersiblc Aerators are well suited for all gas-liquid reactions at temperatures below 70 ”C and pressures below 2 bar absolute. In sewage ami water treatment, they have proven themselves in
I’re-aeration Activated Sludge/Nitrification Sludge Stabilization/Digestion Flotation
Neutralization Ozonation Oxidation
Numerous field data and test results have shown that the FRINGS Immersible Aera
tors u.scd in waste water yield exceptionally high oxygen transfer rates. Alpha values were always found to be higher than 0.9 and often to exceed 1.5-2.0. Hie very high alpha-values arc usually found in waste .streams with a high BOD-load.
ΙιικΙπΙΙιΚίοιι
Hie FRINGS Immersible Aerators can installed stationary, moving or floating.
Stiitio V liiiersihle Aerators o I)
St widely used way of iiistallalion is in conventional basins or tanks. Hie aera
tors are positioned on the bottom of the basin and stand firm on account of their own weight. With crane hooks, they can be lifted out of the basin. They can also be set between two guide tubes which at the same time act as supports for a bridge structure.
Guide sheets facilitate lifting for mainten-
Moving Imiiiersihle Aerators (photo 2)
In very large ba.sins and at very low BO D- loads, the aerators can be mounted to mobile or revolving bridges. Aerators mounted to fast revolving or moving bridges offer the advantage that the rising ir bubbles are retained in the water for a longer time and therefore increase the ] oxygen transfer rate.
Floating Imiiiersihle Aeratois V (|)hoio3)
In lagoons, lakes or rivers, ihc immersible ' aerators can be installed floating, either firmly anchored swinging back and forth at : ropes or self-propelled at tightly I] stretched cables.
AihuiiluKi'S
'llic Ι'ΓίημΝ Immersible Aerators offer the following ad
vantages:
1. Fine-bubbled aeration with high oxygen utilization 2. Easy installation and maintenance 3. High oxygen transfer rates and transfer efficiencies 4. Little or no chance of clogging
5. Low noise level
(below 35 decibel at a 50 m distance) 6. No spray water
7. Absolutely winterproof
8. Intensive mixing of basin contents. No solids accu
mulation
9. Self-aspiration even at great water depths 10. Available made entirely of s.s. (for neutralization,
ozonation, etc.)
recliiiicul data
Material: *
Motors made of cast iron, protected by higli-qualiry paint, shaft of stainless steel, double mecdianical seal of silictMi carbide (medium side), leakage control, thermic protedioo and 1 0 m cable.
Aerator parts of stainless steel, bushing of bronze.
Performance data:
The figures in table 1 refer to a water depth of 3 to 6 m.
For precise data, including those for different water depths, please see our Engineering FUndbook. 'Hre oxygen transfer rates were found in clean water tests under standard conditions (10 *C, 1013 mbar).
The immersible aerators will be operated with pressurized air if high oxygen transfer efficiency values are more important than an easy ir "
Immersible Aerator lype 76 T A
Mol Rated Power
kW 3
lor*
Speed m in' 1.450
Basin O A 2 . 2
Basin G B
6
Self-as|
in Basin of O A kg/h
3.8 Oxygen Tra pirating
in Basin of G B
kg/h 2.5
insfer Kates
of G A kg/h
of G B kg/h
151 T A 4 1.450 2.3 6 4,2 2.7
301 T A 6 1.450 2,7 8 1 0 6.7
601 T A 1 1 1.450 4 1 0 2 2 14 35 25
901 T A 25 1.450 4.3 1 1 34 2 2 45 34
1200 T A 30,5 1.450 5 1 2 45 30 60 45
1800 T A 44 1.450 5.5 14 67 45 83 62
2400 T A 55 1.450 6 16 94 65 113 85
•Data for standard motors 400 V, 50 Hz Table 2: Weights and Dimensions
Type 76 T A
I of design, dimensions a H E IN R IC H FRINGS GmbH & Co KG
Jonas-Cahn-Str. 9 D-53115Bonn 1 ΐ: υ Κ Ο Μ Λ Κ Κ Κ , Ί ’
il. OilAHAI. ΙΙΓΡΙΒΑΑΛΟΙΠΟΙ tVi. ·,ο . )0) Qt λ ο ι ι μ, .. J 15042 FI,·.;' outi A0.M.yrd.,.cJ4AP. MAE 24β;ΐ/ϋΙ,11/71/..·