NIVELCO EasyTREK SP-300 Instrucciones de montaje

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SP-300,SP-300 series

t wo-wire compact ult rasonic

level transmitter

INSTALLATION AND PROGRAMMING MANUAL

2nd edition

0408

HiTECH/NIVELCO

301 Oxford Valley Road, Bldg 505, Yardley, PA 19067

Tel.: (215) 321-6012 ♦Fax: (215) 321.6067

Technical support: 888.NIVELCO (888.648-3526)

e-mail:sales@hitechtech.com ♦http://www.hitechtech.com

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Min. measuring distance )(X

Max. measuringdistanceof thedevice )

Max. measurement range of the device

Device data

Application data

Max. distance to be measured (H)

Automatic close-end blocking

Default: P05=X

Manual close-end blocking

Programmed: P05>X

Programmed measurement range

Transmitted range

Far endblocking

Defaults: P06=0

DIST = Distance (measured)

LEV = Level

(calculated: H-DIST )

VOL = Volume

(calculated from LEV)

Min. measuring distance

Measurement

BASIC CONCEPTSAND 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………………………………5

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. Safety regulations for units with Ex approvals .............................13

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

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

5.3.2. Current output ...........................................................................20

5.3.3. Digital communication ............................................................... 21

5.3.4. Measurement optimisation ........................................................ 21

5.3.5. Volume (content) measurement................................................25

5.3.6. Open channel flow measurement .............................................26

5.3.7. 32-Point linearisation.................................................................32

5.3.8. Informational parameters (read out parameters) ......................33

5.3.9. Additional parameters for flow metering ...................................34

5.3.10. Other parameters ....................................................................34

6. MAINTENANCE AND REPAIR...........................................................34

7. ERROR CODES..................................................................................35

8. PARAMETER TABLE.........................................................................36

9. SOUND VELOCITY VALUES IN DIFFERENT GASES......................38

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Thank you for choosing a HiTECH/NIVELCO instrument.

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

1. INTRODUCTION

A Total beam angle of 5°-7°at –3 dB as is featured by most of

HiTECH/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 to

5° beam angle.

Application

The EasyTREK compact ultrasonic level transmitters from HITECH/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.

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 26. 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 25). 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 -22- 194ºF (-30°C…+90°)

Ambient temperature -22ºF....+ 176.F (-30 °C … +80°C)

Pressure** (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

11,8 … 36 V DC without HART communication

Power supply 1,2 … 36 V DC with HART communication

48 mW … 720 mW, Galvanic isolation; protection against

surge transients

Accuracy * ±(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

Analogue: 4 … 20 mA, (3,9 … 20,5 mA), Rtmax = (Ut– 11,4 V) / 0,02 A, Galvanic isolation; protection against surge transients

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

Electrical connection 2 x 0,5 mm2shielded cable ∅6mm x 3m (available max. length 30m)

Electrical protection Class III SELV

* Under optimal circumstances of reflection and stabilised transducer temperature.

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

2.2 ADDITIONAL DATA FOR EX CERTIFIED DEVICES

Ex marking II1G EEx ia IIB T6 IP68

Intrinsically safety data Ci ≤15 nF, Li ≤200

H, Ui ≤30 V, Ii ≤140 mA, Pi ≤1 W Ex-device should be powered by EEx 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, for PTFE transducer –30 °C ... +90 °C

Ambient temperature -4ºF ....+ 158ºF (-20 °C … +70 °C)

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2.3 SPECIAL DATA

SPECIAL DATA FOR PP,PVDFAND PTFETRANSDUCERS (ALSO APPLIES TO EX MODELS)

Type SP-39-SP-38-SP-37-SP-36-SP-34-

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

Max measuring distance * (XM) [m / ft] 4/13 3/10 6/20 5/16 8/26 6/20 10/33 15/49

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

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

Measurement frequency 80 kHz 80 kHz 50 kHz 60 kHz 40 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

* (from the transducer face)

2.4 ACCESSORIES

•Warranty certificate

•Installation and programming manual

•Certificate 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 15/49 4 1”; 2” BSP thread 0 4 … 20 mA / HART / LOGGER 3

PVDF B 10/33 6 2” NPT thread N 4 … 20 mA / HART 4

PTFE / PP T 6/20 ; 8/26 7 1” BSP quick conn. / PP F 4 … 20 mA / HART / LOGGER / Ex 7

5/16 ; 6/20 m 8 Bracket 200 mm K 4 … 20 mA / HART / Ex 8

3/10 ; 4/13 9 Bracket 500 mm L

Bracket 700 mm M

Certified devices bear the „Ex” tag in the order

code

* 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,

PTFE

EasyTREK

SP-34-/ PP, PVDF,

PTFE

1 ½ ” BSP o r N PT

~199

2 ” BSP o r N PT

~199

2 ” BSP o r NPT

~192

~173

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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 1 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.

Dmin

L 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

≤

250

≥ ∅

D 100

Dmin.

Dmin

L S P – 34 

90 *

200 *

350 *

500 *

* For values contact your distributor

≤

350

≥ ∅

D 100

Dmin.

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