NIVELCO EasyTREK SP-300 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-300, SP-300 Ex

two-wire compact ultrasonic level transmitter

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Min. measuri ng di stance )(X

Max. measuring distance of the device )

Max. measurement range of the device

Device data

Application data

Max.distancetobemeasured(H)

Automatic close-end blocking

Default: P05=X

Manual close-end blocking

Programmed: P05>X

Programmed measurement range

Transmitted range

Far end blocking

Defaults: P06=0

DIST = Distance (measured)

LEV = Level

(calculated: H-DIST )

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 Additional data for ex certified devices............................................6

2.3 Special data.....................................................................................7

2.4 Accessories.....................................................................................7

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

2.6 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......................................................13

5.3. Programming................................................................................14

5.3.1. Measurement configuration.......................................................14

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

5.3.3. Relay Output .............................................................................21

5.3.4. Digital communication ...............................................................22

5.3.5. Measurement optimisation ........................................................22

5.3.6. Data logger................................................................................26

5.3.7. Volume (content) measurement................................................30

5.3.8. Open channel flow measurement .............................................31

5.3.9. 32-Point linearisation.................................................................37

5.3.10. Informational parameters (read out parameters) ....................38

5.3.11. Additional parameters of the flow metering.............................39

5.3.12. Supplementary parameter of the logger..................................39

5.3.13. Other parameters ....................................................................39

6. MAINTENANCE AND REPAIR ...............................................40

6.1 Software upgrade..........................................................................40

7. ERROR CODES ......................................................................41

8. PARAMETER TABLE .............................................................42

9. SOUND VELOCITY VALUES IN DIFFERENT GASES ..........44

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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.

1 m 0,21 m

2 m 0,3 m

5 m 0,56 m

10 m 1 m

15m 1,45 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°

Ambient temperature -30 °C … +80 °C

Pressure(1) (Absolute) 0.05 … 0.3 MPa (0.5 … 3 bar) SS316Ti for sensors with stainless steel 0.09 ... 0.11 MPa (0.9 ... 1.1 bar)

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

Ingress protection IP 68

Power supply 12(3) … 36 V DC with HART communication 48 mW … 720 mW, Galvanic isolation; protection against surge

transients

Accuracy(2) (0.2% of the measured distance plus 0.05% of the range)

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– 11.4 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)

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

Electrical protection Class III SELV

(1) For pressures below 1 bar representative of Nivelco should be consulted.

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

(3) Only partial operation is provided. Realible operation without any restrictions is guaranteed at >13.4V terminal voltage.

2.2 ADDITIONAL DATA FOR EX CERTIFIED DEVICES

Ex marking II 1 G Ex ia IIB T6..T5 Ga

Intrinsically safety data Ci ≤28 nF, Li ≤200



H, Ui ≤30 V, Ii ≤140 mA, Pi ≤1 W Ex-device should be powered by Ex ia power supply

Ex power supply, loading Uo < 30 V, Io < 140 mA, Po < 1 W, Voltage range 12 V … 30 V, Rtmax = (Ut– 12 V) / 0.02 A

Medium temperature For PP transducer -20 °C ... +70 °C, for PVDF transducer -20 °C ... +80 °C; Temp. class T6,

for PTFE transducer -30 °C ... +90 °C; Temp. class T5,

Ambient temperature -20 °C … +70 °C

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2.3 SPECIAL DATA

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

Type SP-39-SP-38-SP-37-SP-36-SP-34-SP-32-

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

Max measurin

distance *

(

)

[m / ft] 4/13 3/10 6/20 5/16 8/26 6/20 10/33 15/49 25/82

Min. measuring distance*

(Dead band) [m / ft] 0.2/0.65 0.25/

0.82 0.25/0.82 0.25/0.82 0.35/1.2 0.35/1.2 0.35/1.2 0.45/1.5 0.6/2

Total beam an

(

-3dB

)

6° 5° 7° 5° 5° 7°

Measurement frequenc

80 kHz 80 kHz 50 kHz 60 kHz 40 kHz 20 kHz

Process connection 1” BSP and

1 ½” BSP / NPT 1” BSP and 2” BSP/NPT 1” BSP and

2” BSP/NPT 1” BSP 1” BSP 1” BSP

* (from the transducer face)

2.4 ACCESSORIES

 Warranty Card

 Installation and Programming Manual

 Declaration of Conformity

2.5 ORDER CODES (NOT ALL COMBINATIONS ARE AVAILABLE)

EasyTREK S P – 3 –

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

PP A 25/82 2 1”; 2” BSP thread 0 4 … 20 mA / HART / LOGGER 3

PVDF B 15/49 4 2” NPT thread N 4 … 20 mA / HART 4

PTFE / PP T 10/33 6 1” BSP quick conn. / PP F 4 … 20 mA / HART / LOGGER / Ex 7

6/20 ; 8/26 * 7 Bracket 200 mm K 4 … 20 mA / HART / Ex 8

5/16 ; 6/20 * 8 Bracket 500 mm L 4…20mA / Relay / HART H

3/10 ; 4/13 * 9 Bracket 700 mm M 4…20mA / Relay / HART / LOGGER 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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2.6 DIMENSIONS

EasyTREK

SP-39-/

PP, PVDF, PTFE

EasyTREK

SP-38-/

PP, PVDF, PTFE

EasyTREK

SP-37-/

PP, PVDF, PTFE

EasyTREK

SP-36-/

PP, PVDF

EasyTREK

SP-34-/

PP, PVDF

EasyTREK

SP-32-/

PP, PVDF

1 ½” BSP

vagy NPT

~199

BSP: 15, NPT: 22

16 22

1” BSP

Ø 96

2” BSP

vagy NPT

~199

BSP: 15, NPT: 22

16 22

1” BSP

Ø 96

2” BSP

vagy NPT

~219

BSP: 15, NPT: 22

16 22

1” BSP

Ø 96

1” BSP

16 22

~162

Ø 96

Ø 122

~173

1” BSP

16 22

1” BSP

16 22

195

Ø148

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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.



250



D 100

Dmin.

L Dmin

S P – 39 S P – 38 S P – 3 7 

150 50 60 60

200 50 60 75

250 65 65 90

300 80 75 105



350



D 100

Dmin.

L Dmin

S P – 34 S P – 32 

90 * *

200 * *

350 * *

500 * *

* For values contact your distributor

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