Xylem MJK 713 Manual de usuario

Manual

US 3.10 713 FLOW CONVERTER 1905 - SW 833062 MJK Automation

Blokken 9

DK-3460 Birkerød

Denmark

Tel +45 45 56 06 56

www.mjk.com

MJK 713

Open Channel Flowmeter

Manual

US 3.10 713 FLOW CONVERTER 1905 - SW 833062 MJK Automation

Blokken 9

DK-3460 Birkerød

Denmark

Tel +45 45 56 06 56

www.mjk.com

UL Approvals

UL-CUL listed, File # E 194021 UL 508/c22: 2 No. 142-M1987.

Declaration of Conformity

Jens Kruse

06.07.2011

MJK Expert Series 1400 / 3400 Pressure Level Transmitter

Konformitetserklæring

Vi, MJK Automation A/S,

DK-3460 Birkerød, påtager os

det fulde ansvar for at produktet

Declaration of Conformity

We, MJK Automation A/S,

DK-3460 Birkerød, declare

under our sole responsibility

that the product

Konformitätserklärung

Wir, MJK Automation A/S,

DK-3460 Birkerød, erklären in

alleiniger Verantwortung,

dass das Produkt

som denne erklæring angår,

er i overensstemmelse med

følgende standard(er) eller andre

normdokument(er).

EN60079.0:2006, EN60079.11:2007

EN61000-6-1:2007

EN61000-6-3:2007

efter bestemmelserne i

direktiv

2004/108/EC

Declaration de conformite

Nous, MJK Automation A/S,

DK-3460 Birkerød, déclarons

sous notre seule responsabilité

que le produit

auquel se réfère cette déclara-

tion est conforme á la (aux)

norme(s) ou autre(s) document(s)

normatif(s)

EN60079.0:2006, EN60079.11:2007

EN61000-6-1:2007

EN61000-6-3:2007

conformément aux dispositions

de Directive

2004/108/EC

to which this declaration relates

is in conformity with the following

standard(s) or other normative

document(s).

EN60079.0:2006, EN60079.11:2007

EN61000-6-1:2007

EN61000-6-3:2007

following the provisions of

Directive

2004/108/EC

Dichiarazione di conformità

Noi, MJK Automation A/S,

DK-3460 Birkerød, dichiariamo

sotto la nostra esclusiva respon-

sabilità che l’apparecchio

al quale questa dichiarazione si

riferisce, è conforme alla seg-

uente normativa(e) standard o ad

altri documenti di normativa(e)

EN60079.0:2006, EN60079.11:2007

EN61000-6-1:2007

EN61000-6-3:2007

conformemente alla disposizioni

della Direzione

2004/108/EC

auf das sich diese Erklärung

bezieht mit der/den folgenden

Nor me(en) oder normativen

Dokument(en) übereinstimmt.

EN60079.0:2006, EN60079.11:2007

EN61000-6-1:2007

EN61000-6-3:2007

Gemäss den Bestimmungen der

Richtlinie

2004/108/EC

Declaración de Conformidad

Nosotros, MJK Automation A/S,

DK-3460 Birkerød, declaramos

bajo nuestra única responsabili-

dad que el producto

al cual se reﬁere esta de-

claración, está en conformidad

con la(s) siguente(e) norma(s) u

otros documentos normativos

EN60079.0:2006, EN60079.11:2007

EN61000-6-1:2007

EN61000-6-3:2007

según las disposiciones de la(s)

directiva(s)

2004/108/EC

DK: +45 45 56 06 56

NO: +47 69 20 60 70

SE: +46 53 31 77 50

NL: +31 251 672171

USA: +1 847 482 8655

AUS: +61 3 9758 8533

MJK Automation A/S

Manual

US 3.10 713 FLOW CONVERTER 1905 - SW 833062 MJK Automation

Blokken 9

DK-3460 Birkerød

Denmark

Tel +45 45 56 06 56

www.mjk.com

Contents

Introduction 5

Safety instructions 5

Repair 5

Hazardous areas 5

Product identiﬁcation 6

Mounting 6

General 6

Explosion hazardous areas 6

Mechanical mounting 7

MJK 713 Flowmeter 7

Shuttle®Ultrasonic Sensor 7

Measuring distances for Parshall ﬂumes 9

Measuring distances for Palmer & Bowlus ﬂumes 9

Measuring distances for rectangular weirs 9

Measuring distances for V-notch weirs 9

Measuring along a wall or other plane 10

Flow measurement with smaller ﬂumes / weirs 10

The spread of the ultrasonic signal 10

Measuring through a concrete deck 11

Measurement through a pipe for foam protection. 11

Model 3100 Hydrostatic Transmitter 12

Measuring distances for Parshall ﬂumes 12

Measuring distances for Palmer & Bowlus ﬂumes 12

Measuring distances for rectangular weirs 13

Measuring distances for V-notch weirs 13

Electrical mounting 14

MJK 713 System Package 1 14

MJK 713 System Package 2 14

MJK 713 System Package 3 14

Cable extension 15

Ultrasonic sensor 15

Cutting the cable 15

Hydrostatic transmitter 16

Cutting the cable 16

Display and keyboard 17

Quick start 17

Initial startup 18

Manual

US 3.10 713 FLOW CONVERTER 1905 - SW 833062 MJK Automation

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DK-3460 Birkerød

Denmark

Tel +45 45 56 06 56

www.mjk.com

Indications 19

Function keys 20

Flow key Q(t) 20

Totalizer key SQ(t) 20

Alarm key 21

Power loss alarm 21

Sample key 21

Menu key 22

System Conﬁguration 23

1.0 Set basic parameters 23

1.1 Set date and time 23

1.2 Access code enabled/disabled 23

1.3 Enter new access code 23

1.4 Select unit measurement 23

1.5 Select unit volume 23

1.6 Select unit ﬂow rate 23

2.0 Set sensor parameters 23

2.1.1 Distance from zero to bottom of sensor 23

2.1.2 Hydrostatic sensor range 23

2.2 Level averaging 23

3.0 Choose primary device 24

3.1 Parshall ﬂumes 24

3.2 Palmer & Bowlus ﬂumes 24

3.3 V-notch weir 24

3.4 Rectangular weir 24

3.4.1 With or without contraction 24

3.4.2 Rectangular weir crest width 24

3.5 Q(h) linearization 24

3.5.1 Number of Q(h) points 24

3.5.2 Select decimal point for the ﬂow values 24

3.5.3 Linearization height value 24

3.5.4 Linearization ﬂow value 24

3.6 Optional formula 24

3.6.1 Optional formula - enter exponent 24

3.6.2 Select decimal point for coefﬁcient 24

3.6.3 Optional formula - enter coefﬁcient 24

3.7 Flow range / level range 25

4.0 Set digital output parameters 25

4.1 Select digital outputs (1-5) 25

4.2 Select function for DO 25

4.3 Alarm ﬂow rate low 25

4.4 Alarm ﬂow rate high 25

4.5 Set volume between pulses 25

4.6 Digital output ON-time 25

4.7 Choose delay on signal 26

4.8 Digital output NC/NO 26

5.0 Analog output 0-20 / 4-20 mA 26

Menu chart 27

Indication menus 27

Conﬁguration menus 27

Appendix 30

A Factory settings 30

B Trouble shooting 31

C Technical speciﬁcations 32

D Hardware adjustments 33

E System Package 2 -

Shuttle®used as signal ampliﬁer 34

F Max. head to max. nominal ﬂow 37

Manual

US 3.10 713 FLOW CONVERTER 1905 - SW 833062 MJK Automation

Blokken 9

DK-3460 Birkerød

Denmark

Tel +45 45 56 06 56

www.mjk.com

Introduction

Thank you for choosing an MJK 713 Open Channel Flow-

meter.

The MJK 713 Open Channel Flowmeter is a high quality

ﬂow measurement instrument, in which the relation

between functions, userfriendliness and precision is

optimum.

The MJK 713 Open Channel Flowmeter use either an

ultrasonic transmitter or a hydrostatic pressure

transmitter. This must be speciﬁed at time of ordering.

The MJK 713 Open Channel Flowmeter measures the

ﬂow rate of water or wastewater in all types of open weirs

and ﬂumes and provides a display of both current ﬂow

rate and totalized ﬂow.

Yet MJK 713 is simple to set up and use in almost all ap-

plications, we recommend that you read this manual thor-

oughly in order to gain full use from the equipment.

You can always contact your representative or the MJK

Service Hotline for advice and guidance. Also, take a look

at www.mjk.com for additional product and application

information.

MJK Automation A/S is a Xylem brand.

Safety instructions

1: Read this manual carefully.

2: Be aware of the environment on the installation site.

Wear necessary protective equipment and follow all

current safety regulations.

3: MJK 713 can provide a start signal for dangerous

machinery. Always ensure that

connected machinery and other equipment are ef-

fectively being put out of service (i.e. removal of main

fuses, lock main and/or security switches in off posi-

tion) before commencing installation, fault ﬁnding,

service and maintenance work etc.

4A: MJK 713 model 2500: There is a risk of lethal

electrical chock from terminal 1 to 5 and L-0.

Be careful not to touch these while the unit is in ser-

vice.

4B: MJK 713 model 3000: There is a risk of lethal

electrical chock from terminal L-0. Be careful not to

touch these while the unit is in service.

Repair

1: Repair of Ex approved equipment (ultrasonic trans-

mitter) must only be made by MJK or by a service

representative approved by MJK.

Hazardous areas

1: All current local and national standards, regulations

regarding installation and use of Ex or hazardous

zone approved equipment, certiﬁcations and safety

instructions for Ex equipment, that have been used

together with the installation of the Shuttle®ultra-

sonic transmitter must be strictly observed.

Manual

US 3.10 713 FLOW CONVERTER 1905 - SW 833062 MJK Automation

Blokken 9

DK-3460 Birkerød

Denmark

Tel +45 45 56 06 56

www.mjk.com

Product identiﬁcation

General

A standard MJK 713 is delivered for two different measur-

ing ranges (0 - 1 ft and 0 - 3 ft).

It is very important that the measuring range is correct

for the ﬂume in question in order to obtain maximum

measuring accuracy.

Check that the item(s) delivered corresponds to the or-

dered item(s). The item number is printed on a label that

is sticked onto the packing. Shown below is the label for

a MJK 713 System Package 1 delivery including a MJK

713 ﬂowmeter and a Shuttle®ultrasonic sensor:

An identical marking can

be found on the right

hand side of the level

transmitter cabinet:

Mounting

General

MJK 713 measures the ﬂow in an open ﬂume or weir

based on the level of the head in the ﬂume. The method

of measurement are based on the following mathematical

function:

Flow Q = f(head x× constant)

where the exponent xand the constant depends on the

type of weir or ﬂume.

The ﬂow converter has 3 different linearization

systems depending on how the volume of water is mea-

sured:

- preprogrammed formulas for different dimensions of

the most common ﬂumes and weirs, Parshall ﬂumes,

Palmer & Bowlus ﬂumes, V-notch weirs, and rectan-

gular weirs.

- for other ﬂumes and weirs with a known calculation

formula the exponent and the factor of the calcula-

tion formula can be set.

- for ﬂumes where no calculation formula exists, a

number of known ﬂow values can be entered,

on which a point linearization and curve extrapolation

is calculated.

It is obvious that the ﬂow calculation is highly dependant

on the accuracy of the level measurement. It is therefore

important to follow the mounting instructions carefully for

the Shuttle®Ultrasonic Sensor (MJK 713 System Pack-

age 1 or 2) or MJK model 3100 Pressure Transmitter

(MJK 713 System Package 3).

Explosion hazardous areas

The Shuttle®ultrasonic sensor is Ex approved and can be

mounted in Zone 2 without the need of a

zener barrier. It is not approved for Class I Division I

zones.

The Flowmeter (= the electronic box with

display) must not be mounted in explosive

hazardous areas.

➀

➁

➃

➂

➁

➀ Item number

➁ Item description

➂ Serial number

➃ Software version

Manual

US 3.10 713 FLOW CONVERTER 1905 - SW 833062 MJK Automation

Blokken 9

DK-3460 Birkerød

Denmark

Tel +45 45 56 06 56

www.mjk.com

Mechanical mounting

MJK 713 Flowmeter

The MJK 713 Flowmeter is in NEMA 4X enclosure and

can be mounted outdoors directly on a wall or in a panel

using a panel mounting kit (order no. 200105). A sun

shield (order no. 200115) is recommended in very sunny

locations.

The MJK 713 Flowmeter must be

mounted vertically in order to observe the

NEMA4X standard.

Mechanical dimensions for the MJK 713 Flowmeter.

The drawing below shows the drilling distances for

mounting the cabinet on a wall:

A full scale print of above drawing can be found at the

end of this manual.

2a: To ensure a reliable and precise level measurement it is

of vital importance that the ultrasonic sensor points down

absolutely vertical against the liquid surface.

1: The ultrasonic sensor is equipped with a nut for bracket

mounting. Note the recess on the nut - it must be ﬁtted

safely in the bracket for ﬁrm ﬁxing to the bracket:

Shuttle®Ultrasonic Sensor

The following are extremely important when

mounting the ultrasonic transmitter:

1: It should be mounted securely.

2: It should be mounted absolutely vertical.

Use a spirit level in TWO directions.

3: It should be mounted in the correct distance from

the bottom of the ﬂume / weir.

Observe the blocking distance!

4: It should be mounted in the correct distance from

the inlet.

Manual

US 3.10 713 FLOW CONVERTER 1905 - SW 833062 MJK Automation

Blokken 9

DK-3460 Birkerød

Denmark

Tel +45 45 56 06 56

www.mjk.com

2b: We deliver two types of sensor brackets that can be used

in almost any installation. The bracket shown is a ﬂume

mounting bracket (order no. 200230 / 200235).

3: The ultrasonic sensor should be installed so that

the bottom of the sensor is as close as possible to

the max. height of the head but not closer than the

blocking distance.

Measuring range: 0 - 1’ 0 - 3’

Blocking distance: )* 16” 16”

Min. measuring range: 4” 12”

Max. measuring range: 12” 36”

Max. sensor height ➁: 30" 54"

)* 14” for System Package 2.

(w. Shuttle®Level Transmitter as signal ampliﬁer.)

Maximum sensor height ➁ = Blocking distance ➀

+ measuring range ➃

➀ Blocking distance ➁ Sensor height

➂ Actual measurement ➃ Measuring range

➀

➁

➂

➃

Manual

US 3.10 713 FLOW CONVERTER 1905 - SW 833062 MJK Automation

Blokken 9

DK-3460 Birkerød

Denmark

Tel +45 45 56 06 56

www.mjk.com

Measuring distances for Palmer & Bowlus ﬂumes

Diameter D: Distance L: Diameter D: Distance L:

4” 2” 18” 9”

6” 3” 21” 10.5”

8” 4” 24” 12”

10” 5” 27” 13.5”

12” 6” 30” 15”

15” 7”

Measuring distances for rectangular weirs

- with and without side contraction

The distance L should be between 4 to 5 times the nomi-

nal width b.

Measuring distances for V-notch weirs

The distance L should be between 3 to 4 times the

height h of the notch.

4: Mount the sensor in the correct upstream distance

from the head in the ﬂume / weir.

The distance depends on the dimension and type

of ﬂume / weir.

Measuring distances for Parshall ﬂumes

Throat width b: Distance L: Throat width b: Distance L:

1” 10” 36” 43”

2” 11” 48” 47”

3” 12” 60” 51”

6” 16” 72” 56”

9” 23” 84” 59”

12” 36” 96” 63”

18” 37.5” 120” 72”

24” 39” 144” 80”

(L = D/2)

Manual

US 3.10 713 FLOW CONVERTER 1905 - SW 833062 MJK Automation

Blokken 9

DK-3460 Birkerød

Denmark

Tel +45 45 56 06 56

www.mjk.com

The spread of the ultrasonic signal

The table and illustration below show the spread of the

ultrasonic signal in conjunction to the measuring distance:

Measuring Beam Minimum distance to

SMOOTH

distance: spread: wall (from center line):

1’ 5” 2.3”

2’ 5” 2.6”

3’ 6” 2.9”

Table 1: The ultrasonic signal spread along a smooth wall and minimum

distance to center line in conjunction to the measuring distance.

Accordingly, as the measuring distance increases, the

distance from the center line to a smooth wall should also

be increased.

To avoid false echoes from e.g. edges, a minimum dis-

tance as shown on the drawing must be kept. The sensor

can be mounted in a smooth pipe if the distance cannot

be obtained. (See ﬁgure 1.)

Figure 1: The signal spread in conjunction with the measurement distance. The

signal spread should be increased by 50 - 100 % if the surface is not

smooth!

Flow measurement with smaller ﬂumes / weirs

Smaller ﬂumes may cause problems if the ultrasonic sig-

nal reﬂects on the edges of the ﬂume as shown below

(ﬁg. 2a).

The edges should be cut off (ﬁg. 2c) or the ultrasonic

sensor should be mounted in a pipe (ﬁg. 2b) with smooth

inner surface.

Measuring along a wall or other plane

The values in table 1 assume the ultrasonic signal is sent

along a smooth surface like a wall or plane without any

projections, joints, butts etc.

If the surface is not smooth or has projections (i.e. joints

on prefab elements), the ultrasonic signal will be im-

pedeaded too much, and for that reason

the values for minimum distance to wall in table 1 should

be increased with 50 - 100 % !

(min. dia. 5 in)

Figure 2: Use a pipe (B) or cut off the edges (C) on small weirs to prevent

disturbing reﬂections from the ﬂume edges.

Blocking

distance!

A B C

Tabla de contenidos

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