nivus flow transmitter

7/22/2019 Nivus Flow Transmitter

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ial device Help

Creating connection

With worldwide TCP/IPcommunication !

OCM Pro CF

High accurate Flow

Measurement in

Channels, part filled

and full Pipes as wellas in Flumes and

S u r f ac e Wa t e r B o d i es

Sira M C110189/00

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OCM Pro CF

New in the Flow Measurement Area

NIVUS flow measurement technology stands for innovation and high

accuracy.

The new OCM Pro CF is a permanent measurement system forcontinuous flow measurement, flow control and storage of recorded

data in a range from slight to heavily polluted media of variousconsistencies.It is designed for use in part filled and full pipes, channels and flumes

with many different shapes and dimensions.

The OCM Pro CF is equipped with fast processors and offers online

access via the Internet. This ensures more versatile, more reliable andmore economic operation.

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Lift-up mechanism for inspection purposes or for sensor removal under operational conditions

Overview on Transmitter Details

very high accuracy

measures the real flow velocity

profile

spatial allocation of single velocities

cross correlation with digital pattern

detection

absolutely stable zero point and

drift-free

no electrodes, no conductivity

required

measures in all channels,part filled and full pipes and flumes

measures in heavily polluted

and abrasive media

no external calibration required

suitable even for very difficult

applications

easy installation without additional

constructions

Ex approval for zone 1 as ATEX

very easy parameter setting in

multilingual dialog mode

large, back-lit graphic display

stores complete measurement data

on Compact Flash cardworldwide TCP/IP communication

online connection/data transmission

and remote maintenance via Internet

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Pipe sensor

Water-ultrasonic sensor

Air-ultrasonic sensor

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no modific ations or additional c on-

s truc tions at plac e of ins tallation

c ables c an be ex tended without any

problem s

triple redundant lev el m eas urem ent

(air-ultras ound, water-ultras ound,

hy dros tatic )

m eas urem ent dy nam ic s between

5 m m/ s a n d 6 m / s

m eas ures in both flow direc tions

highly m edium -res is tant s tandard

s ens ors (PPO, PEEK, 1.4571,

Has telloy C276)

s ens ors res is tant to c hem ic als forhighes t dem ands

Ex approv al z one 1 as ATEX

p r o t ec t i o n r at i n g I P 6 8

A complete OCM Pro CF measurement place consists of a transmitter and appro-priate active sensors. There are flow velocity sensors with and without integrated

flow level measurement available as well as air-ultrasonic flow level sensors for

direct connection to OCM Pro CF. Various constructions can be used depending

on the kind of application. You can select from wedge sensors for installation in

channels and open flumes or pipe sensors for installation in steel, concrete and

plastic pipes.

Sensors - high accuracy and universal use

OCM Pro CF

The wedge sensor operates absolutely

reliably despite heavy soiling.

Simple pipe sensor mounting.

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Guiding tube DN 100Length 8m

Recir culation pipeDN800

S t a nd a r d s e n s o r i n s t al l e d

on a wedge

Flow measurement in rectangular

channel of a sewage treatment plant

Successful in use anywhere

Typical areas of usef or O CM Pr o CF

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+

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was tewater treatm ent plants : inlet,

dis c harge, inlet to aeration tank s ,

return s ludge, rec irc ulation, s urplus

s ludge, dis c harge from diges ter and

floc c ulant dos ing point

perm anent m eas urem ents on s torm

water bas in, s torm water retention

bas in, s torm water s edim entation tankdirec t dis c harger c ontrol, inv es tigation

of ex traneous water or leak age

indus trial was tewater network s

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i n d u st r i a l f l o w m e a su r e me n t s

irrigation s y s tem s

inlets and outlets c onduc ting c ooling

water or c irc ulation s y s tem s

s luic e s tages in riv ers

hy droelec tric and therm ic power

plants

m eas urem ent c am paigns in channelnetwork s

M C E RT S a p p l i ca t i o n s

and m any m ore

Due to heavy vorticity 3 sensors have been

installed. Since initial start-up in December

2001 the measurement runs without

interruption.

Due to heavy sedimentation in the

c h a nn e l i t w a s n e c es s a ry t o i n s t a l l

t h i s s p e ci a l c o n st r u c ti o n . T h e

measurement operates reliably since

initial installation.

M easurement in a full filled

recirculation line

A full filled recirculation pipe is on the

ground of a constantly filled denitrification

tank. The measurement in the filled tank

was desired to be accessible at any time.

The flow velocity sensor has been installed

in a guiding tube with a length of 8 m.

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OCM Pro CF

NIVUS - t h e p e r fe c t S o l ut i o n f o r e a c h A p p l i ca t i o n

Exemplified measurement tasks:A flow m eas urem ent whic h is ins ens itiv e

to s oiling and s edim entation without the

need to be c leaned frequently . The

m eas urem ents s hown in the ex am ples

hav e been dev eloped in order to reliably

a n d a cc u r at e l y d e t e ct f l o w l e v e l s

c ons idering fluc tuations of s ludge lay ers .

In this c as e OCM m eas urem ents with

c om bi wedge s ens ors hav e been us ed

whic h e.g. were plac ed on the water

s urfac e by us ing v ertic ally m ov able

floats .

The prev ailing water lev el down to the

Due to decades of experience andk n ow l ed g e of o ur e n gi n ee r s an dt e c h n i c i a n s a l m o s t i m p o s s i b l ea p p l ic a t i o ns ar e o u r c h a l le n g e . I f

desired, you can let us do thecomplete planning and evaluationo f y o u r m e a s ur e m e nt p l a c e .

s ludge s urfac e is going to be detec tedby us ing the ultras onic trans it tim e

m ethod.

The flow v eloc ity s ensor thank s to the

c ros s c orrelation prov ides the ac c urate

flow v eloc ity profile and henc e an

ac c urate im age of the flow c onditions

and the flow v eloc ity in the c hannel.

You need an indiv idual s olution for y our

m eas urem ent problem or y ou are

interes ted in m ore applic ation ex am ples

and referenc es ?

Just talk to us.

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h1h2

h3

P

How the OCM Pro CF measures

The quantity >>flow "Q"


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GPRS

Solar

OCM Pro CF

Flow Velocity Measurement

The OCM Pro CF in conjunction with the new combi sensors has the

ability to carry out high accurate flow measurements.

The principle of flow velocity determination is based on the ultrasonicreflection principle. One of the latest and most efficient methods for flow

velocity detection is the correlation method (interrelation between twosimilar image patterns). A prerequisite for being applied is the existenceof reflecting particles (solids, minerals or gas bubbles) in the fluid.

This allows to exactly allocate the measured velocities spatially and toindicate the results.

vmax

vaverage

V

Qflow

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t0 5 10 1 5 20 25 30 35 40 4 50

2

4

6

8

10

12

t

98

96

9492

90

86

0.0 0.2 0.4 0.6 0.8 1.0

80

70

0.

0

0.

2

0.

4

0.

6

0.

8

1.

0

Vy(t-t)

x(t)

( ) dt)t(g)t(fT

1lim2/T

2/Tt

fg +

+=

Formula

Flow profile directly indicatedon the display.

Values can be read directlyon the display.

By using the cross correlation method

the characteristic echo image patterns

within the time slots are now checked

for compliance.

The temporal shift between the echo

image patterns from both scans is going

to be investigated.

This comparison allows to directly con-

vert the flow velocities prevailing within

the single measurement windows consi-

dering the beam angle.

An ultrasonic converter (sensor) sendsan ultrasonic burst into the medium.

The particles or gas bubbles in the medi-

um reflect this impulse.

The sensor operates in impulse-echo

mode, i.e. the ultrasonic converter will

switch to receiving mode immediately

after transmitting the burst, receiving

the reflected ultrasonic echo as a cha-

racteristic echo image pattern.

A spatial allocation can be derived thanks

to the transit time of the ultrasonic impul-

se and the sound velocity.

These echo patterns from the first scan

will be digitised and saved.

During the second scan, an ultrasonic

burst will be sent again and the reflected

echo pattern will be saved as well.

This procedure will be repeated up to

2000 times per second. The flow profile

will be determined from the individual ve-

locities in real time by the integrated digi-

tal signal processor (DSP).

This allows the user to obtain measure-

ment values with the highest accuracy

without additional calibration.Overlay of image patterns

v3

v2

v1

Investigated flow profile

... thanks toCross Correlation

E1 Measurement window 1

Measurement window 2


E Measurement windows 4 - 16n

E2

E3

E4

E1 - E4 =Reflecting particels

1. Scan

E1

E2

E3

E4

2. Scan




E Measurement windows 4 - 16n

E1 - E4 =Reflecting particels

t3

E3

E3 E4

t1

E1

E1

t

t

t2

1. Scan

2. Scan

Signalevaluation

E2

E2

t

Window 3Window 2Window 1

0

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OCM Pro CF

The OCM Pro CF comes with the free

evaluation software NivuDatwhich, besi-

des using other common spreadsheet

applications, allows the indication of

measurement data such as graphs or

tables under Windows XP / Windows

2000 quick and clearly.

This ensures the read-out of saved raw

data very reliable. Additional processing

functions such as sequential data export,

averaging, output of min. and max. valu-

es, measurement place management

and more complete the program.

Evaluation

Any of the recorded readings as well

as up to 4 additional external analog

signals can be saved in free intervals

if the OCM Pro CF has been equipped

with a Compact Flash card.

Data can be read and evaluated easily.

The status of analog and digital inputs

can be indicated and recalled directly.

System failures or irregularities which

might have occurred will be recorded as

well.

Versatile diagnostic options enable the

choice of the best possible measure-

ment place and error free operation of

the measurement system.

Data Storage

Diagnostics

Recall the most important system dataon-site or comfortably on PC.

Settings are clearly indicated on the

graphic display. This virtually eliminates

faulty programming.

Operation / Programming

It is very easy to put the system into

operation and to recall data since the

large graphic display is clearly laid out

for its various applications.

Always up-to-date

The clear program structure allowsto easily set parameters.

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Using its integrated web server the

OCM Pro CF provides a dedicated web-

site using TCP/IP. Besides being used

within internal networks this option al-

lows the user to connect the unit to the

world wide web. Due to the specially de-

signed operating system the unit is abso-lutely resistant to virus attacks.

Remote control options enable to ac-

cess any functions which are available

on site.

The OCM Pro CF offers innovative communication options forremote maintenance, remote diagnosis and data transfer as

standard. This is how to interconnect the latest measurementtechnology worldwide at any time.

On-sitefrom anywhere

complies with worldwide interface

standard using TCP/IP Ethernet

integrated web server

online access via Internet browser

without the need to install

additional software

integrated data logger up to 128 MB

saved data can be read out

via Internet at any time

operation and parameter setting

online (remote control)

quick and comprehensive remotediagnosis of entire measurement

place (online service)

Integrated

WebServ

er

The screen indicated is equal to the on-

site display.

Data can be transferred simply by one

mouse click. Internet connection enab-

les the user to maintain, control and ana-

lyse several measurement places fromanywhere in the world simultaneously.

Visit www.nivus.com

and check out communication with

our new OCM Pro CF

www.nivus.com

Log in using your pass-word on www.nivus.com

Connection to measure-ment place will be set up

Select displaymode

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5

4 .

0 1

S

e c f i c a i o n s

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1

. 0

2

0

Supply power 100 to 240 V A C, + 10 % /-15 %, 47 to 63 Hz

o r 2 4 V D C 1 5 % , 5 % r es i du a l r i pp l e

Power consumption max. 20 VA

Material/Weight Polycarbonate, approx. 3400 g

Protection IP 65

Ex Approval II(2)G [Ex ib] II B

O pe ra ti ng te mp er at ur e - 20 C t o + 50 C

Storing temperature -30 C to +70 C

Max. Humidity 80 %, non-condensing

Display back-lit graphic display,

128 x 128 Pixel

Operation 18 button keypad, menus in German, English,

French, Italian, Spanish, Polish, Danish, ...

Inputs 1 x 4 - 20 mA for external level

1 x RxTx-Bus for NIVUS air-ultrasonic sensor

Type LUS

up to 4 x 0/4 - 20 mA with 12 bit resolution for

e x t er n a l l e v el , e x t e r n a l s e t p oi n t s a n d

data storageu p t o 4 d i g i t al i n p ut s

up to 3 velocity sensors

Outputs up to 4 x 0/4 - 20 mA, load 500 Ohm,

12 bit resolution,

up to 5 relays/SPDT

Data memory Compact Flash Card up to 128 MB

Storage cycle 1 to 60 minutes

D at a t ra ns mi ss io n C om pa ct F la sh C ar d, T CP /I P v ia E th er ne t

and modem (GPRS, ISDN, analog)

Connection Modbus TCP a nd TCP/IP v ia Ethernet

and modem (GPRS, ISDN, analog)

Transmitter

Yo u c a n fin d mo r e in fo r ma tio n in th e in s tr u c tio n ma n u al o r o n www.niv us .c om

Specifications

Sensors

NIVUS GmbH NIVUS AG NIVUS Sp. z o.o. NIVUS Fr anceIm Taele 2 Hauptstrasse 497 50 31 Ep pi ng en , G er ma ny 8 75 0 Gl ar us , Sw it ze rl an dP h o ne : + 49 ( 0 ) 7 2 62 / 91 9 1 - 0 P h o n e: + 4 1 ( 0) 5 5 / 64 5 2 0 6 6 P h o n e: + 4 8 (0 ) 5 8 / 7 6 0 2 0 1 5 P h o n e: + 3 3 (0 ) 3 8 8 0 7 1 6 9 6F ax : + 49 (0 ) 7 2 6 2 / 91 91 - 9 99 F ax : + 41 (0 ) 5 5 / 64 5 2 0 1 4 F ax : + 48 (0 ) 5 8 / 76 0 2 0 1 4 F ax : + 33 (0 ) 3 88 07 16 97E -mai l: i nf o@n iv us .co m E -ma il : sw iss @n ivu s. co m E -ma il : po lan d@ niv us .c om E -ma il : fra nce @n ivu s. co mInternet: www nivus de Internet: w ww nivus de Internet: ww w nivus pl Internet: ww w nivus com

N I V U S U . K .ul. Hutnicza 3 / B-18 14, rue de la Paix P.O. Box 342, Egerton, Bolton8 1- 212 Gd yn ia , P ol an d 6 77 70 Ses se nh eim , F ra nc e La ncs . B L7 9W D, U.K .

Phone: +44 (0) 1204 591559Fax: +44 (0) 1204 592686E-mail: [email protected]: www nivus com

M e a su r e m en t p r in c i p le u l t r as o n ic t r a ns i t t im e ( l ev e l /h e i g ht )

piezoresistive pressure meas. (level/height)

correlation with digital pattern detection

( f l o w v e l oc i t y)

Measurement deviation less than 1 %,

uncertainty

pipe sensor incl. retaining element for

installation in pipes

M e as u re m en t r an g e (v ) - 1 m /s t o + 6 m /s

M e a su r e m en t r a n ge ( h ) p r e s su r e 3 . 5 m; u l t r as o n ic 2 m

Measurement frequency 1 MHz

Protection IP 68

Ex Approval II 2 G Ex ib IIB T4

O p er a ti n g t e mp e ra t ur e - 2 0 C t o +5 0 C ( - 20 C t o + 4 0 C i n E x Z o ne 1)

S to ri ng t em pe rat ur e - 30 C b i s + 70 C

(in case of compliance with specific conditions)

Operational pressure max. 4 bar (combi sensor with pressure

measurement cell max. 1 bar)

Cable length max. 100 m, other lengths on request

Sensor types V100 flow velocity sensor (v; temperature)

V1H1 combi sensor (v meas., level meas.using

water-ultrasound and temperature meas.)V1D0 combi sensor (v meas., level meas. using

pressure and temperature meas.)

V1U1 combi sensor (v meas., level meas. using

water-ultrasound and redundancy using pressure

and temperature measurement)

Constructions wedge sensor for installation on channel bottom

Materials Polyurethane, stainless steel 1.4571, PPO GF30,

PA (only wedge sensor),

HDPE (only pipe sensor)

Option PEEK, Hastelloy C276 ground plate;

Titanium ground plate; FEP-coated cable

Transmitter

2 3 6 . 7

70

236

( 2 0 7 . 5 w it h o u t t r a n s pa r e n t c o v e r )

T r a ns p a r e n t c o v e r

2 8

11

4

MemoryCard

258.5

243. 5

1 2 0

9 0

5. 5

1 3

. 3 5

OCMProCF

A ll dimensions in mm

Water-UltrasonicC o m b i S e n s or

Air-UltrasonicL e v e l S e n s or

Pipe Sensor

24

2 2

. 5

1 7 . 5

2 3 7

3 2 0

12 17

M 1 6

3

Slottedholesfor

fasteningonpipemountingsystem

Counter

sunkholesDIN

66-5,butwith

d1=

6.5mm,fordirectfastening

40

9 0

6

. 5

1 0

. 4

3 2 0

2 5 4

. 5

31

24

7 . 5

Threea

dapterplatesarerequiredforfasteningon

pipemountingsystem.

1 7 . 5

40

3

M16

4 5

4 5

35

G 1

TypeR2:200/

TypeR3:300(withstopballvalve)

1 5 . 5

74. 8

a l i g n me n t s c r e wM4 x 8 0( i n s t a l l a t i o n h e l p )

r e t a i n i n ge l e me n t

SW55

M1 6 x 1 , 5

2 2

2 2

6 8

. 5SW5 0

movable

A ll dimensions in mm

Counter

sunkholesDIN

66-5,butwith

d1=

6.5mm,fordirectfastening

nivus flow transmitter

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