NIVELCO EasyTREK SP-500 Series Instrucciones de montaje

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Manufacturer

H-1043 Budapest, Dugonics u. 11.

Tel.: (36-1) 889-0100 Fax: (36-1) 889-0200

sales

E-mail: @nivelco.com www.nivelco.com

NIVELCO Process Control Co.

EasyTREK

SP-500

two-wire integrated ultrasonic level transmitter

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Max (X. measuring dis tance of the devic e

)

Min (X. measuring distance

)

Max. measurement range of the device

Device data Application data

Max. distance to be measured (H)

Automatic close- end blocking

Default: P05 = X

Manuakl close-end blocking

Programmed: P05 > X

Programmed measurement r ange

Transmitted range

Far end blocking

Defaults: P06 = 0

DIST = Distance (measured)

LEV = Level

( : H-DIST )calculated

VOL = Volume

(calculated from LEV)

Min. measuring distance

Measurement

BASIC CONCEPTS AND ELEMENTS

OF ULTRASONIC MEASUREMENT

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CONTENTS

1. INTRODUCTION .........................................................................................5

2. TECHNICAL DATA.....................................................................................6

2.1. General data ......................................................................................6

2.2. Special data .......................................................................................7

2.3. Accessories........................................................................................7

2.4. Order codes (Not all combinations are available)..............................7

2.5. Dimensions ........................................................................................8

3. INSTALLATION ..........................................................................................9

3.1. Liquid Level Measurement.................................................................9

3.2. Open channel flow measurement ....................................................11

4. WIRING .....................................................................................................11

5. PUTTING INTO OPERATION...................................................................12

5.1. Usage...............................................................................................12

5.2. Special conditions of safe use .........................................................12

5.3. Programming ...................................................................................13

5.3.1. Measurement configuration.................................................13

5.3.2. Current Output ....................................................................20

5.3.3. Relay Output .......................................................................22

5.3.4. Digital communication.........................................................23

5.3.5. Measurement optimisation..................................................23

5.3.6. Volume (content) measurement..........................................27

5.3.7. Open channel flow measurement .......................................28

5.3.8. Programming the VOLUME / MASS / FLOW TABLE)........34

5.3.9. Informational parameters (read only parameters)...............35

5.3.10. Additional parameters of the flow metering.........................36

5.3.11. Other parameters................................................................36

6. MAINTENANCE AND REPAIR ................................................................37

6.1. Firmware upgrade............................................................................37

7. ERROR CODES........................................................................................ 37

8. PARAMETER TABLE...............................................................................38

9. SOUND VELOCITY VALUES IN DIFFERENT GASES ...........................40

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Thank you for choosing a NIVELCO instrument.

We are sure that you will be satisfied throughout its use.

1. INTRODUCTION

Application

The EasyTREK compact ultrasonic level transmitters from NIVELCO are

excellent tools for level measurement of liquids.

Level measurement technology based on the non-contacting ultrasonic

principle is especially suited for applications where, for any reason,

no physical contact can be established to the surface of the material to

be measured.

Principle of Operation

The ultrasonic level metering technology is based on the principle of

measuring the time required for the ultrasound pulses to make a round trip

from the sensor to the level to be measured and back. The sensor emits an

ultrasonic pulse train and receives the echoes reflected. The intelligent

electronic device processes the received signal by selecting the echo reflected

by the surface and calculates from the time of flight the distance between the

sensor and the surface which constitutes the basis of all output signals of the

EasyTREK.

A Total beam angle of 5– 7at -3 dB as is featured by most of Nivelco’s

SenSonic transducers ensuring a reliable measurement in narrow silos with

uneven side walls as well as in process tanks with various protruding objects.

Furthermore, as a result of the narrow beam angle – the emitted ultrasonic signals

have an outstanding focusing – deep penetration through gases, vapour and foam

is ensured.

0.21 m

0.3 m

0.56 m

1 m –

1.45 m

1 m

2 m –

5 m –

10 m –

15 m –

Diameters corresponding

5° beam angle.

Minimum measuring distance (Xm) is determined by the design of the unit within which the measurement is not possible (Dead Zone) its value is according with

P05 on page 18. Since measurement is impossible within this range material should not get into this zone.

Maximum measuring distance (XM) is the greatest distance (determined by the design of the unit) which can be measured by the unit under ideal conditions.

(See parameter P04 on page 17). Maximum measuring distance of the actual application (H) must not be greater than XM.

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2. TECHNICAL DATA

2.1. GENERAL DATA

Transducer / enclosure materials Polypropylene (PP), PVDF, PTFE/PP

Process temperature PP, PVDF and PTFE transducers -30 °C … +90 °C

Ambient temperature -30 °C … +80 °C

Pressure(1) (Absolute) 0.05 – 0.3 MPa (0.5 – 3 bar)

Seals PP transducer: EPDM; All other transducer versions: FPM

Ingress protection IP68

Power supply 10(3) – 36 V DC with HART communication 40 mW – 720 mW, Galvanic isolation; protection against surge transients

Accuracy(2) (0.1% measured + 0.025% max.) or (0.05% max.) whichever is greater

Resolution Depending on the measured distance: <2 m: 1 mm, 2 – 5 m: 2 mm, 5 – 10 m: 5 mm, >10 m: 10 mm

Outputs

Analogue: 4 – 20 mA, (3.9 – 20.5 mA), Rtmax = (Ut– 10 V) / 0.02 A, Galvanic isolation; protection against surge transients

SPDT relay, 30 V / 1 A DC; 48 V / 0.5 A AC

Serial communication: HART interface (terminal resistor ≥250 Ohm)

Programming / diagnostic interface: 3.3 V LVDS, 100 mA max., Galvanic isolated

Electrical connection 6 x 0.5 mm2shielded cable 6 mm x 5 m (available max. length 30 m)

Electrical protection Class III SELV

(1) For pressures below 1 bar consult with your representative at NIVELCO

(2) Under optimal circumstances of reflection and stabilised transducer temperature.

(3) Only partial operation is provided. Reliable operation without any restrictions is guaranteed at >11 V terminal voltage.

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2.2. SPECIAL DATA

SPECIAL DATA FOR PP, PVDF AND PTFE TRANSDUCERS (ALSO APPLIES TO ExMODELS)

Type SP-5A-SP-59-SP-58-SP-57-SP-56-SP-54-

Transducer material PP or PVDF PP, PVDF PTFE PP, PVDF PTFE PP, PVDF PTFE PP or PVDF PP or PVDF

Max. measuring distance (XM) [m / ft] 3 / 10 5 / 16 4 / 13 8 / 26 6 / 20 10 / 33 7 / 23 12 / 39 18 / 59

Min. measuring distance *

(Dead band) (Xm) [m / ft] 0.15 / 0.49 0.18 / 0.59 0.25 / 0.82 0.2 / 0.65 0.25 / 0.82 0.25 / 0.82 0.35 / 1.2 0.25 / 0.82 0.35 / 1.2

Total beam angle (-3dB) 5° 6° 5° 7° 5° 5°

Measuring frequency 120 kHz 80 kHz 80 kHz 50 kHz 60 kHz 40 kHz

Process connection 1" BSP / NPT 1" BSP and 1½" BSP / NPT 1" BSP and 2" BSP / NPT 1" BSP and 2" BSP / NPT 1" BSP 1" BSP

* (from the transducer face)

2.3. ACCESSORIES

 Warranty Card

 Installation and Programming Manual

 Declaration of Conformity

2.4. ORDER CODES (NOT ALL COMBINATIONS ARE AVAILABLE)

EasyTREK S P – 5 –

HOUSING MATERIAL CODE RANGE M/FEET CODE PROCESS CONNECTION CODE OUTPUT /EXCODE

PP A 18/59 4 1"; 1½", 2" BSP thread 0 4 – 20 mA / HART 4

PVDF B 12/39 6 1"; 1½", 2" NPT thread N 4 – 20mA / Relay / HART N

PTFE / PP T 7/23; 10/33 * 7

6/20; 8/26 * 8

4/13; 5/16 * 9

3/10 A

The order code of an Ex version should end in ‘Ex’

* Measuring range depends on the material of the transducer

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2.5. DIMENSIONS

EasyTREK

SP-5A-/

PP, PVDF

EasyTREK

SP-59-/

PP, PVDF, PTFE

EasyTREK

SP-58-/

PP, PVDF, PTFE

EasyTREK

SP-57-/

PP, PVDF, PTFE

EasyTREK

SP-56-/

PP, PVDF

EasyTREK

SP-54-/

PP, PVDF

Ø47

~612

1" BSP

2216

BSP 15, NPT 22

1" BSP

1" NPT

Ø47

~182

1" BSP

2216

BSP 15, NPT 22

1"BSP

1"NPT

Ø47

~182

1" BSP

2216

BSP 15, NPT 22

2" BSP

2" NPT

Ø47

~202

1" BSP

2216

BSP 15, NPT 22

2" BSP

2" NPT

Ø75

~135

1" BSP

2216

1" BSP

2216

~144

Ø124

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3. INSTALLATION

3.1. LIQUID LEVEL MEASUREMENT

POSITION

The ideal position of the EasyTREK is on the radius

r = (0.3 – 0.5) R of the (cylindrical) tank / silo.

(Take also sonic cone on page 5 into consideration.)

SENSOR ALIGNMENT

The sensor face has to be parallel to the

surface of the liquid within 2– 3.

TEMPERATURE

Make sure that the transmitter is

protected against overheating by

direct sunshine.

Sunshade

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OBSTACLES

Make sure that no objects (cooling pipes, bracing members,

thermometers etc.) protrude into the sensing cone of the ultrasonic

beam.

Remark: EasyTREK programming allows one fixed object that would

otherwise disturb the measurement to be blocked out. (see P29 of

programming).

FOAM

Foaming of the liquid surface may render ultrasonic level metering

impossible. If possible, a location should be found, where foaming is

the least (device should be located as far as possible from liquid

inflow) or a stilling pipe or well should be used.

WIND

Intensive air (gas) movements in the vicinity of the ultrasonic cone

is to be avoided. A strong draft of wind may "blow away"the

ultrasound. Devices with lower measuring frequency (40, 20 kHz)

are recommended.

FUMES / VAPOURS

For closed tanks containing chemicals or other liquids, which

creates fume/gases above the liquid surface especially for outdoor

tanks exposed to the sun, a strong reduction of the nominal

measuring range of the ultrasonic device is to be considered during

device selection. Devices with lower measuring frequency

(40, 20 kHz) are recommended in these cases.

STAND-OFF

The structure of the stand off pipe should be rigid; the inner rim where the ultrasonic beam leaves the pipe should be rounded.

L Dmin

SP– 59SP– 58SP– 57

150 50 60 60

200 50 60 75

250 65 65 90

300 80 75 105

350 95 80 120

Dmin.

350

100ØD

L Dmin

SP– 54

90 130

200 140

350 150

500 160

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