SGM LEKTRA METER Mode d’emploi

METER

ultrasonic level transmitter

technical documentation EN Rev. P

Page 2 of 40

METER - contents

CONTENTS

1-WARRANTY

2-PRODUCT

3-PERFORMANCE SPECIFICATIONS

4-DIMENSIONS

5-INSTALLATION

6-ELECTRICAL CONNECTIONS

7-LOCAL OPERATOR INTERFACE (LOI)-VL601

8-QUICK SETUP

9-ADVANCED SETUP

10-FACTORY TEST AND QUALITY CERTIFICATE

pag. 3

pag. 4

pag. 5

pag. 6

pag. 7

pag. 11

pag. 13

pag. 15

pag. 23

pag. 40

Page 3 of 40

METER - warranty

Products supplied by SGM LEKTRA are guaranteed for a period of 12 (twelve) months from delivery date accord-

ing to the conditions specified in our sale conditions document.

SGM LEKTRA can choose to repair or replace the Product.

If the Product is repaired it will maintain the original term of guarantee, whereas if the Product is replaced it will

have 12 (twelve) months of guarantee.

The warranty will be null if the Client modifies, repair or uses the Products for other purposes than the normal

conditions foreseen by instructions or Contract.

In no circumstances shall SGM LEKTRA be liable for direct, indirect or consequential or other loss or damage

whether caused by negligence on the part of the company or its employees or otherwise howsoever arising out

of defective goods

1-WARRANTY

Page 4 of 40

METER - features

2- PRODUCT

1. Anticondensation fi lter

2. M20 skintop

3. VL601 (opt.)

4. Sensor

2.1 IDENTIFICATION

Each meter has an adhesive identifi cation plate on which are the meter main data. The following picture describes the

information and data on the identifi cation plate.

METER1F4D

24Vdc 20÷30Vdc

MU0081604506

1Mod.

P. S .

S.N.

1. Product code 3. Serial number2. Power supply

Page 5 of 40

3-FEATURES

METER - features

Housing/sensor material

PC or Al / PP wetted part (only PVDF for ATEX certifi ed vers.)

Mechanical installation

2” GAS M (PP fl ange DN80 opt.)

Protection degree

IP67/IP68 (Sensor)

Electrical connection

Internal push connectors

Working temperature

-30 ÷ +70°C; +80°C non-continuous

Pressure

from 0,5 to 1,5 bar (absolute)

Power supply

12Vdc / 20÷30Vdc (2-wires versions) - 24Vdc (4-wires versions)

Power consumption

0,6W (2-wires) - 1,5W (4-wires)

Analog output

4...20mA, max 750ohm (4-wires versions)

Relays output

(4-wire only) n°2 3A 230Vac (n.o.)

Digital communication

MODBUS RTU for 4-wire vers. ; (opt.) HART for 2-wire vers.

Max measure range

max 0.25 ÷ 6m

max 0.40 ÷10m

In case of non perfectly refl ecting surfaces, the maximum distance value will be reduced

Blind distance

0,25m (6m versions) / 0,40m (10m versions)

Temperature compensation

digital from -30 to 80°C

Accuracy

±0,2% (of the measured distance) not better than ±3mm.

Resolution

1mm.

Calibration

4 buttons or via HART / MODBUS RTU

Warm-up

5 minutes typical

LCD Display

Plug-in display/keyboard 4 buttons matrix LCD

Ex-proof

ATEX II 1/2G Ex ia II C T6 Tamb -20 ÷ +60°C

Page 6 of 40

4-DIMENSIONS

METER - dimensions

4.1 MECHANICAL DIMENSIONS

Page 7 of 40

METER - installation

5-INSTALLATION

5.1 MOUNTING PRECAUTIONS

5.1.1 Mounting position

- With cambered roof, Do not install the sensor in the tank center (b). Leave a 300mm (d) minimum distance

between the sensor and the tank smooth wall.

- Use a protective cover to protect the sensor from weather and direct sunlight (c).

- Do not install the sensor near the load zone (a).

- Make sure that in the sensor emission beam (lobe “α”) there are no obstacles (f,s) that can be

intercepted as level.

- Make sure that there is not foam presence on the product surface to be measured.

5.1.2 Blind distance

During installation is important to remember that in the sensor vicinity there is a blind zone (or BLIND DISTANCE)

of 0.25m (for 6m max METER range) or 0.4m (for 10m max METER range) where the sensor can not measure.

Lobo

“α“

METER

6mt 5°

METER

10mt 5°

Blind Distance

0.25mt (6mt)

0.40mt (10mt)

Page 8 of 40

METER - installation

5.1.3 Installation in nozzle

Installing the METER sensor in a nozzle, make sure the sensor bottom protrudes at least 10 mm from the bottom

nozzle.

≥10mm.

METER can be installed in an extension pipe to turn away the sensor from the maximum level point. The exten-

sion pipe must be fl at and without joints (welds, etc..), also, the pipe terminal part must be cut at 45° and with the

borders without burr.

METER 6mt METER 10mt

D (mm) L max (mm) D (mm) L max (mm)

57 180 80 240

80 240 100 300

100 300

Page 9 of 40

METER - installation

5.1.4 Reference pipe installation

Disturbing factors that may infl uence the level measurement in liquids, as for example:

- foam presence on the product surface

- internal structures presence in the tank

- presence on the liquid surface of fl oating bodies

can be avoided with the use of level measurement inside of pipes (by-pass pipe or calm pipe with 57mm min.

diameter). The pipe must have a length greater or equal than the empty distance, also, must have some of vent

holes to allow the pipe regular fi lling and emptying.

In the programming menu, to the “PRODUCT” parameter, must select the “LIQUID PIPE” option

Foam Internal structures Floating bodies

Vent hole Ø5÷10mm

Page 10 of 40

METER - installation

5.1.5 Agitators presence

The level measurement is possible thanks to the Auto-Tuned statistical fi lter.

Should rarely need to adjust the fi lter setting by editing 2 METER sensor programming parameters:

- FILTER; this parameter is present in the Quick Setup menu and in the Advanced Confi guration “SETUP” menu;

increasing the parameter value, decreases the sensor sensitivity to the level measurement sudden variations.

- F-WINDOW; this parameter is present in the Advanced Confi guration “SERVICE” menu; decreasing the parameter

programmed value, increases the sensor immunity to false echoes.

Ce manuel convient aux modèles suivants

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