Magnetrol Echotel 335 Instructions de montage

Echotel®Series 335/338

Compact Ultrasonic Transmitter

INSTALLATION

and

PROGRAMMING MANUAL

C O N T E N T S

1. INTRODUCTION............................................................................................................................................................. 2

2. ORDER CODES ............................................................................................................................................................... 2

3. TECHNICAL DATA........................................................................................................................................................ 3

3.1 Data of Echotel for liquids ............................................................................................................................................................. 3

4. INSTALLATION.............................................................................................................................................................. 4

4.1 Liquid Level Measurement ............................................................................................................................................................. 4

4.2 Open Channel Flow Measurement ................................................................................................................................................ 5

4.3 Electrical Connection ..................................................................................................................................................................... 5

5. PROGRAMMING ............................................................................................................................................................ 5

5.1 Touch-Magnet Programming (only for level transmitters for liquids)......................................................................................... 6

5.2 Programming of the Echotel by the 046-8108-001 Programming Module ................................................................................. 8

5.2.1 The 046-8108-001 Programming Module ......................................................................................................................................................8

5.2.2 Programming with the 046-8108-001 Programming Module.......................................................................................................................9

5.2.3 Indications of the 046-8108-001 Programming Module and the LEDs ........................................................................................................9

5.2.4 Current Output Scaling ..................................................................................................................................................................................10

5.2.5 QUICKSET ....................................................................................................................................................................................................11

5.2.6 Full Parameter Access....................................................................................................................................................................................12

6. PARAMETERS – DESCRIPTIONS AND PROGRAMMING................................................................................ 12

6.1 Measurement Configuration......................................................................................................................................................... 12

6.2 Current Output.............................................................................................................................................................................. 16

6.3 Relay Output ................................................................................................................................................................................. 16

6.4 Measurement Optimisation .......................................................................................................................................................... 17

6.5 Volume Calculation ...................................................................................................................................................................... 20

6.6 Volume Flow Measuring .............................................................................................................................................................. 20

6.7 32-Point Linearisation Curve....................................................................................................................................................... 23

6.8 Informational Parameters ............................................................................................................................................................ 23

6.9 Additional Open Channel Flow Metering Features.................................................................................................................... 24

6.10 Test Parameters ............................................................................................................................................................................ 24

6.11 Simulation Mode ........................................................................................................................................................................... 25

6.12 Access Lock ................................................................................................................................................................................... 25

7. ERROR CODES ............................................................................................................................................................. 25

SOUND VELOCITIES IN DIFFERENT GASES ..............................................................................................................26

1. INTRODUCTION

Application

The Echotel compact ultrasonic level transmitters from MAGNETROL

are an excellent tool for the 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.

Such reasons may include corrosive attack by the process medium

against the measuring device material (acids), possible contamination

(sewage) or particles of the process medium adhering to the measuring

device (adhesive materials).

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

Magnetrol’s 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.

5 m r=22 cm

r=44 cm

r=66 cm

r=88 cm

10 m

15 m

20 m r

5 m r=22 cm

r=44 cm

r=66 cm

r=88 cm

10 m

15 m

20 m r

The Diameters

corresponding to

5° beam angle.

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 Echotel

Dead Band is a feature common to all

ultrasonic level meters. It is specified as

“Minimum measuring distance” in the

Technical Data Table.

2. Identification Code

Basic Model Number:

335=Integrally mounted transmitter with 50 kHz transducer and 8 meter range

338=Integrally mounted transmitter with 80 kHz transducer and 6 meter range

Electronics Housing:

P=Plastic (PBT) housing

A= Aluminum housing

Input power:

A= 85 to 265 V AC

D= 10.5 to 40 V DC,

10.5 to 28 V DC

Signal Output:

1= 4 - 20 mA & SPDT relay

Accessories:

0= No digital display/programming module

A= Digital display/programming module included

Agency Approvals:

G=General purpose IP 67

Mounting:

5= 2" NPT

B= 2" BSP

Transducer Material:

P= Polypropylene

K= Kynar

33 --

Order Codes for Accessories:

1. 046 – 8108 - 001 : Local Indicator for Echotel 335/ 338 series

2. 013 – 6165 - 001 : Magnetic Screwdriver - Calibration tool

3. TECHNICAL DATA

3.1 Data of Echotel for liquids

General data

Product name Echotel 335/338 series

Product description Compact type ultrasonic level transmitter

Housing material Plastic: PBT fibre-glass reinforced, flame-retardant (DuPont)

Aluminium: Powder paint coated

Ambient temperature -30°C ... +60°C with 375 - 0SAP -100 -25°C ... +60°C If necessary, protect the device from over-heating by direct

sunshine!

Pressure (Absolute.) 0.3 ... 3 bar (0,03 ... 0,3MPa)

Seals PP transducer: EPDM

All other transducer versions: FKM (Viton)

Mechanical protection Sensor: IP68 (submersible)

Housing: IP67 (NEMA 6)

Power supply /

Consumption

High voltage version: 85 ... 255 V AC / 6 VA

Low voltage version: 10,5 ... 40 VDC / 3,6 W, 10,5 ... 28 V AC / 4 VA

Accuracy* ±(0.2% of the measured distance plus 0.05% of the range)

Resolution < 2 m: 1 mm, 2...5 m: 2 mm, 5...8 m: 5 mm

Analogue: 4/20 mA, 600 Ohm, galvanically isolated, secondary lightning protection

Contact: SPDT (NO/NC); 250 V AC, 3 A

HART (optional)

Outputs

Display (375 - 0SAP -100): 6 digits, icons and bargraph, Custom LCD

Electrical connections 2 x Pg16 and 2 x _” NPT

Wire cross section: 0,5 ... 2,5 mm2

Electrical protection Class I.

*Under optimal circumstances of reflection and stabilised transducer temperature.

Special data of Echotel for liquids with PP and PVDF transducers

Type Echotel®338 Echotel®335

Transducer material PP or PVDF PP or PVDF

Maximum measuring

distance * [m / ft]

6 / 20 8 / 26

Min. measuring distance*

(Dead band) [m / ft]

0,25 / 0,82 0,35 / 1,2

Total beam angle (-3 dB) 5° 7°

Measuring frequency 80 kHz 50 kHz

Process connection 2” thread 2” thread

* (taken from the transducer face)

375-0 375 - 0SAP -100 Programming Module

Field indication 6 digits, icons and bargraph, Custom LCD

Ambient temperature -25°C … +60°C

Housing material PBT fibre-glass reinforced plastic, flame-retardant

(DuPont)

Dimensions of Echotel 338/335

Echotel 338: PP, PVDF, PTFE Echotel 335: PP, PVDF, PTFE

~56.5

BSP length 15

NPT length 22

2x NPT1/2"

~60

2 pcs Pg16

~89

148

BSP or

or NPT 2"

~56.5

148

BSP length 15

NPT length 22

2x NPT1/2"

2 pcs Pg16

~89

or NPT 2"

BSP or

4. INSTALLATION

4.1 Liquid Level Measurement

POSITION

The optimal position of the Echotel is between 1/2

radius and 2/3 diameter of the (cylindrical) tank /

silo. (Take also sonic cone on page 1 into

consideration.)

PARALLELITY

The sensor face has to be parallel

to the surface of the liquid within ±

2-3°.

TEMPERATURE

Make sure that the transmitter

will be protected against

overheating by direct sunshine.

Sunshade

OBSTACLES

Make sure that no in-flow path or

objects (e.g. cooling pipes, ladders,

bracing members, thermometers, etc)

or no tank wall of the ragged surface

protrude into the sensing cone of the

ultrasonic beam.

Although up to two fix objects in the

tank / silo that disturb the

measurement can be blocked out by

the appropriate programming of the

Echotel

FOAM

Foaming of the liquid surface may render ultrasonic level

measuring impossible. If possible, a location should be found,

where foaming is the smallest (the device should be located as

far as possible from liquid in flow) or a stilling pipe or well

should be used.

FUME/VAPOUR

In case of closed tanks containing chemicals or other liquids

creating 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.

WIND

An intensive moving of the air (gas) in the vicinity of the

ultrasonic cone is to be avoided. A strong draft of wind may

"blow away"the ultrasound.

STAND-OFF PIPE

The structure of the stand off pipe should be rigid, the inner rim where the

ultrasonic beam leaves the pipe should be rounded.

Ø D

D min ( in mm)

L in

mm Echotel 338 Echotel 335

150 60 60

200 60 75

250 65 90

300 75 105

350 85 120

4.2 Open Channel Flow Measurement

•For ultimate accuracy, install the sensor as close as possible above the expected maximum water level (see minimum measuring

range).

•Install the device upstream in a place defined by the characteristics of overflow and metering channel along the longitudinal axis of

the flume or weir.

•From the point of view of measurement accuracy the length of the channel sections preceding and following the measuring flume

and their method of joining to the measuring channel section are of critical importance.

•Despite of the most careful installation, the accuracy of flow metering will be lower than that of specified for distance

measurement. It will be determined by the features of the flume or weir applied.

4.3 Electrical Connection

•Screw out the hexagonal countersunk screw at the side

of the model. Lift the tilt cover to access the screw

terminal.

•There is a basic requirement for separating the 4...20

mA signal cable and 230 V AC supply

(or output relay) cable by shielding.

•For grounding the unit, either use the grounding screw

terminal on the outside of the housing; or use a three

wire mains cable, connecting the third wire to the

internal grounding screw terminal.

•Three-wire installation is also possible for the 24 V

DC versions by connecting the terminals 1 and 6. In

this case the galvanic isolation is not provided.

•The unit may be damaged by electrostatic discharge

(EDS), via terminal, thus apply the precautions

commonly used to avoid electrostatic discharge.

5. PROGRAMMING

The Echotel will be delivered with the following Factory Default:

⇒Current output, display and bargraph: LEVEL

⇒4 mA: assigned to the minimum level 0%

⇒20 mA: assigned to the maximum level 100%

⇒Error indication by the current output: hold last value

⇒Damping: 60 sec for liquids, 300 sec for solids

The device can be programmed in two ways:

•Touch-Magnet Programming by the supplied magnetic screwdriver (with level transmitters for liquids only), see 5.1.

Assignment of the levels to the 4 and 20 mA current output, relay switch differential (both with an accuracy of ±20 mm) error

indication by the analogue signal and damping can be set.

•With the 046-8108-001 programming module, see 5.2.

All features of the device can be set, such as measurement configuration and optimization, relay programming, 32-point

linearisation, dimensions

for 6 tanks with different shape and for 21 different open channels (flume or weir) etc.

Some Devices are already equipped with the 046-8108-001 (see Identification code – page 3).

The Echotel is fully operational without the 046-8108-001. The 046-8108-001 is only needed for programming and/or displaying

measurement values.

If the transmitter is left in Programming Mode by mistake, it will automatically return to Measurement Mode after 30 minutes and will

operate with the parameters entered during the last completed programming.

5.1 Touch-Magnet Programming

The following can be programmed: with the supplied

magnetic calibration tool – screwdriver PN°013-6165-

001:

•Assignment of the 4 mA analogue output to a required

e.g. min. level / max. distance

•Assignment of the 20 mA analogue output to a required

e.g. max. level / min. distance

•Error indication by the current output (Hold, 3.6 mA,

22 mA) see Chapter 6.2.(P12)

•Relay switching different

•Damping (10, 30 and 60 sec)

•Reset to the factory default

Note: Current output can also be assigned in inverted

mode:

4 mA= 100% (Full), 20 mA= 0% (Empty)

Programming is only possible if the Echotel receives

valid echo i.e.“ECHO” LED is lit !

and transmitter is in LEV measuring mode (factory

default).

The accuracy of the setting with this programming method

is limited to ±20 mm. Thus the relay switching difference

between “On” and “OFF” must be greater than 20 mm.

Place magnet to at 0% level:

LED O O O

Hold magnet in place while setting:

LED O O O

Remove magnet when ready:

LED O O O

Place magnet to at 100% level:

LED O O O

Hold magnet in place while setting:

LED O O O

Remove magnet when ready:

LED O O O

LEDs

magnet

For programming: put magnetic screwdriver in accordance with the drawing to place A or B and check the LEDs for their status:

= LED is on, = LED is blinking, = LED is off, = LEDs are blinking alternatively

Make sure that after programming completed all other magnetic influences will be avoided.

Minimum level, 0%, empty tank (assignment to 4 mA,)

Place the Echotel at a distance to the target corresponding to the required maximum distance/minimum level.

Action LED indication

1) Check valid echo = Valid echo received, transmitter

programmable

2) Place magnet to the symbol “A” and = Transmitter in programming mode

3) Hold magnet in place = Distance assigned to 4 mA

4) Remove magnet when all LEDs are

off

= Programming completed

Use level in tank or a fix target e.g. the wall

Maximum level 100%, full tank (assignment to 20 mA)

Place the Echotel in a distance to the target corresponding to the required minimum distance/ maximum level.

Action LED indication

1) Check valid echo = Valid echo received, transmitter

programmable

2) Place magnet to the symbol “B” and = Transmitter in programming mode

3) Hold magnet in place = Distance assigned to 20 mA

4) Remove magnet when all LEDs are

off

= Programming completed

Use level in tank or a fix target e.g. the wall

Programming relay switch-on point (the level where relay becomes energised)

Place the Echotel at a distance to the target corresponding to the required switch-on point. (Do not forget to check valid Echo!)

Action LED indication

1) Place magnet to symbol “A”” =Programming mode

2) Place magnet to symbol “B” and =Programming in progress

3) Hold magnet to symbol “B”=Programming in Progress

4) Place magnet to symbol “A”=Programming in Progress

5) Remove magnet when all LEDs are off =End of Programming

Use level in tank or a fix target, i.e. the wall

Programming relay switch-off point (the level where relay becomes de-energised)

Place the Echotel at a distance to the target corresponding to the required switch-off point. (Do not forget to check valid Echo!)

Action LED indication

1) Place magnet to symbol “A” =Programming mode

2) Place magnet to symbol “B” and =Programming in progress

3) Hold magnet to symbol “B”=Programming in progress

4) Keep holding magnet to symbol “B”=Programming in progress

5) Remove magnet when all LEDs are off =End of Programming

Use level in tank or a fix target, i.e. the wall

Please note that the smallest switch-differential achievable with magnet programming is 20 mm.

“Error indication” by the current output (Check valid echo as above)

Action LED indication

1) Place magnet to the symbol “A” = Transmitter in programming mode

2) Place magnet to the symbol “B”

repeatedly

to select the required error indication mode

= Hold last value

= 3.6 mA

= 22 mA

3) Place magnet to the symbol “A” = Programming completed

“Damping” (Check valid echo as above)

Action LED indication

1) Place magnet to the symbol “B” = Transmitter in programming mode

2) Place magnet to the symbol “A”

repeatedly

to select the required damping

= 10 sec

= 30 sec

= 60 sec

3) Place magnet to the symbol “B” = Programming completed

Reset (to factory default)

Action LED indication

1) Place magnet to the symbol “B” = Programming mode

2) Place magnet to the symbol “A and = Reset in progress

3) Hold magnet to the symbol “A” = Reset in progress

4) Remove magnet when all LEDs are off = End of programming

Error indications during programming (by LEDs)

Action LED status = error indicated Correction

1) Attempted programming = blinking twice = No Echo Find valid echo

2) Attempted programming = blinking three times = access denied (access code

active)

With use of 375 - 0SAP -100 see Chapter 5.2

(P99)

3) Attempted programming = blinking four times = Echotel not in LEV meas. mode With use of 375 - 0SAP -100 see Chapter 5.2

(P01)

4) Programming of the relay =blinking alternately = switch-differential too small Set switch-differential greater than 20 mm

5.2 Programming of the Echotel by the 046-8108-001 Programming Module

The 046-8108-001 supports 3 separately accessible programming modes representing 3-

layers of programming complexity, depending on user choice.

PLUG-IN PROGRAMMER

Current Output

Scaling

Full

Parameter

Access

QUICKSET

Current Output Scaling (5.2.4)

Recommended as a simple and fast way to modify the scaling of the current output.

QUICKSET (5.2.5)

Recommended as a simple and fast way to set up the Echotel by 8 basic parameters

This menu driven programming mode supports the following basic settings:

•Engineering unit for the display (Metric or US)

•Maximum measuring distance

•Assignment of min level to 4mA

•Assignment of max level to 20mA

•Error indication by the current output

•Damping time

•Assignment of level to energising of the relay

•Assignment of level to de-energising of the relay

Full Parameter Access (5.2.6)

All features of the Echotel can be accessed by parameter addresses:

Example:

•Measurement configuration

•Outputs

•Measurement optimalisation

•6 pre-programmed tank shapes for volume calculation

•32-point linearisation table

•Open channel flow metering functions

5.2.1 The 046-8108-001 Programming Module

The plug in programming and display module is used for programming but also for display even in case of Touch-Magnetic

Programming

The Display and keys

Symbols used on the LCD:

•DIST – Distance (measuring) mode

•LEV – Level (measuring) mode

•VOL – Volume (measuring) mode

•FLOW – Open channel (flow metering) mode

•PROG - Programming mode (device under programming)

•RELAY – Relay

•T1 - TOT1 volume flow totaliser (resetable aggregate)

•T2 - TOT2 volume flow totaliser (aggregate)

•FAIL - Measurement / device error

•⇑⇓- Level changing direction

•Bargraph assigned to the current output or echo strength

Symbols used on the frame:

•M– Metric system

•US – US calculation system

ENTER

DOWN

5.2.2 Programming with the 046-8108-001 Programming Module

Programming will be performed by pressing one or two keys (simultaneously).

Single key pressing

Press key ENTER - to save parameter address and go to parameter value

to return from parameter value to parameter address

Press NEXT to move the blinking of the digit to the left

Press UP to increase value of the blinking digit

Press DOWN to decrease value of the blinking digit

Double key pressing

(Short overview, for details see in 5.2.4, 5.2.5 and 5.2.6)

Press the two keys simultaneously for desired programming step.

Enter into or quit programming modes Basic steps while parameter address is blinking Basic steps while parameter value is

blinking

ECurrent output scaling

uickse

Full Parameter

Ac c e s s

Return to default*

* LOAD will be displayed

** CANCEL will be displayed

Cance

llmod

ifica

tions

Parameter

valu e

Def ault

Display default value

* cancellation immediately active

Cance

mod

ifica

tions

turn

rame

add

ress*

Parameter

valu e

Act u al

Notes:

If the parameter value is not accessible i.e. the parameter address keeps blinking after pressing ENTER

•the parameter is either a read-out type, or

•the secret code prevents the modification (see P99).

If the modification of the parameter value is not accepted i.e. the parameter value keeps blinking after pressing ENTER

•the modified value is either out of the range, or

•the code entered is not valid for this parameter

5.2.3 Indications of the 046-8108-001 Programming Module and the LEDs

Field indication

Depending on the measuring mode (see P01 in Chapter 5.2.3)

the following values can be displayed (relevant symbol is lit):

•Distance

•Level

•Volume

•Flow

•TOT1 and TOT2

•Error code (if “FAIL” is blinking)

To scroll through the displays above press NEXT repeatedly.

To display transducer temperature, press UP :

To display current output value, press DOWN :

LED indication

ECHO - LED

LED is lit as long as the device receives a valid echo signal

RELAY - LED

LED is lit when relay is energized

COM - LED

LED is lit during communication

(Remote control)

RELA

ECHO

COM

ENTER

DOWN

(

°C/°F

)

(

)

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