SGM LEKTRA CLS2 Leitfaden

CLS2, 4, 7

Capacitive rod / insulated and cable level switches for liquids and

bulk solids

technical documentation EN revision of 16/10/2020

Page 2 of 16 www.sgm-lektra.com

CLS2, 4, 7 - contents

CONTENTS

1-WARRANTY

2-PRODUCT

3-TECHNICAL SPECIFICATIONS

4-DIMENSIONS

5-INSTALLATION

6-ELECTRICAL CONNECTIONS

7-LOCAL OPERATOR INTERFACE (LOI)-VL601

8-SENSOR CALIBRATION

9-PARAMETER PROGRAMMING

10-TESTING AND QUALITY CERTIFICATE

page 3

page 4

page 5

page 6

page 7

page 10

page 11

page 12

page 13

page 16

Page 3 of 16

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CLS2, 4, 7 - warranty

SGM-LEKTRA SRL undertakes to remedy any fault, defect or absence, occurring within 12 months from the

delivery date, provided that it is attributable to it and has been notified within the prescribed time limit.

SGM LEKTRA SRL may choose whether to repair or replace the faulty products.

The Products replaced under warranty will have an additional 12-month warranty.

The Products repaired under warranty will have a warranty until the original time limit.

The parts of the Products repaired out of warranty will have a 3-month warranty.

The Products are only guaranteed to meet particular specifications, technical characteristics or conditions of use

if this is expressly agreed in the Purchase Agreement or in the documents referred to therein.

The warranty of SGM-LEKTRA SRL absorbs and replaces the warranties and responsibilities, both contractual

and non-contractual, originating from the supply such as, for example, compensation for damages,

reimbursement of expenses, etc., both towards the Customer and towards third parties.

The warranty is void in the event of tampering with or improper use of the Products.

1-WARRANTY

Page 4 of 16 www.sgm-lektra.com

CLS2, 4, 7- product

2-PRODUCT

1. Cover

2. VL601 (opt.)

3. Skintop M20

4. Process connection

5. Covering

6. Rod

7. Anti-condensate ﬁlter

2.1 IDENTIFICATION

Every instrument has an adhesive identiﬁcation plate on which the main information about the meter is outlined.

The following image describes the information and data on the plate.

CLS

24Vdc÷115Vac 85÷230Vac

CC0081604506

1Mod.

P. S .

S.N.

1. Product code 3. Serial number2. Voltage supply

Page 5 of 16

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3-TECHNICAL SPECIFICATIONS

CLS2, 4, 7 - technical speciﬁcations

Casing material

PC/AL

Cable/rod material

Carbon steel, AISI316

Insulation/covering material

PVC, PTFE and PE

Mechanical installation and materials

Probe Process connection Materials

CLS2 G 1”, G 1”½ Carbon steel, AISI316

CLS4 G ½”, G 1”, 1” NPT Carbon steel, AISI316

CLS4 G ¾” AISI316

CLS4 G 1”½ Carbon steel, AISI316, PVC, PTFE

CLS4 CLAMP 1”, 1” ½, 2” AISI316

CLS4 COUPLING NUT DN25, DN40, DN50 AISI304L (DIN 11851)

CLS4 FLANGE DN40 PN6 (PVC, PTFE UNI 1092-1), PN16 (Carbon steel, AISI304,

AISI316)

CLS4 FLANGE DN50, DN80, DN100 PN6 (PVC, UNI 1092-1), PN16 (AISI316, DIN 2527 form B )

CLS4 FLANGE ANSI RF2”, RF3”, RF4” AISI316 (150psi)

CLS7 G 1”½ Carbon steel

CLS7 FLANGE DN40 PN16 (Carbon steel, AISI304, AISI316)

CLS7 FLANGE DN50, DN80, DN100 AISI316 (DIN 2527 form B)

CLS7 FLANGE ANSI RF2”, RF3”, RF4” AISI316 (150psi)

Protection rating

IP67/IP68 in process

Pressure

-1 ÷ +6bar

Operating temperature

-20÷+60°C (-40÷150°C vers. PTFE with heat sink)

Power supply

24Vdc ÷ 115V 85÷230Vac

Max. input power

1,5W

Cable glands

M20x1,5

Electrical connection

Plug-in terminal blocks

Relay output

3A 230Vac

Trigger mode

min. or max. level

Trigger delay

0÷30s (programmable)

Programming

Via extractable VL601 module

Void calibration

for self-acquisition through extractable VL601-SGM module

Thermal stability

1 typical minute

Display

LCD display on extractable VL601-SGM module

Greed LED: power on

Red LED: relay status (on with relay energized)

Certiﬁcation

ATEX II 1/2D Ex ia/tb IIIC T150°C (opt.)

Page 6 of 16 www.sgm-lektra.com

4-DIMENSIONS

CLS2, 4, 7 - dimensions

5.1 MECHANICAL DIMENSIONS

Ø95 130

132,5

250

1"½ G

Page 7 of 16

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CLS2, 4, 7 - installation

5-INSTALLATION

5.1 PRECAUTIONS FOR INSTALLATION

5.1.1 CORRECT INSTALLATION

Correct installation of CLS sensors to control a Max. level (a) and Min. level (b). To avoid triggering problems,

follow the instructions below:

- Install away from loading zones and keep a minimum distance of 300mm from the walls of the tank.

- When placing the order, select the option for the cable extension length, allowing the sensitive element

to be positioned at least 200 mm from the bottom of the tank.

- Pay particular attention to the maximum load for minimum level CLS sensors (b).

The mechanical load during discharge must not exceed a value of:

3000N for process temperatures below 40°C

2800N for process temperatures with a max. value of 70°C (80° non-continuous)

- Position the CLS2 sidewise at 30° angle (minimum), preferably with a sun protector plate (c)

Min. dist.

300mm

Min. dist.

200mm

“a” “b”

Maximum

level

Minimum

level

Max. load

3000N

“c”

Page 8 of 16 www.sgm-lektra.com

CLS2, 4, 7 - installation

5.1.2 Incorrect installation

• Incorrect installation of CLS sensors.

• do not install near loading zones (d); false alarm signals may be generated and the CLS sensors may be

damaged by the pouring in of the material.

• do not install at the centre of the tank loading point (e); the CLS sensors and/or ceiling of the tank may be

damaged and eventually break the cable of the CLS sensors, due to the elevated mechanical stress created

in this point.

• do not install in points where accumulations of product may form (f); the CLS sensors might remain blocked in

the ‘product present’ position: false max. level alarm or, vice versa, failed min. level alarm signal.

• the CLS2 probes with rope extension cannot be installed sidewise (g).

“d” “e” “f”

“g”

Page 9 of 16

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CLS2, 4, 7 - installation

5.1.3 Cable

Bent cable (h-i)

The cable must be straightened (l) to prevent the sensitive element from touching the wall of the tank and sending

a false ‘product present’ signal: false max. level alarm or, vice versa, failed min. level alarm signal.

“h” “i” “l”

Page 10 of 16 www.sgm-lektra.com

CLS2, 4, 7 - electrical connection

6-ELECTRICAL CONNECTION

6.1 CONNECTIONS

1) Before energizing this product, make sure all connections have been correctly made and that the mains

voltage corresponds to that on the rating plate.

2) Tighten the cable glands and cover to ensure a protection rating of IP67.

3) To prevent the inﬁltration of water or humidity, which may damage the level sensor, do not remove the caps

of unused cable glands.

6.2 INFILTRATIONS OF HUMIDITY

To avoid inﬁltrations of humidity inside the cover, we recommend:

- Using a cable with an external diameter of 6÷12mm for the electrical connections and fully tightening the M20

cable gland

- Fully tighten the cover

- Position the cable in such a way as to form a downward curve in the output of the M20 cable gland;

in this way condensation and/or rainwater will tend to drip from the bottom of the curve.

+Vdc / L (Vac)

-Vdc / N (Vac)

24Vdc÷115Vac and

85÷230Vac RL

Plug-in terminal blocks for connection of

power supply

Power ON green LED: On and fixed

Plug-in terminal blocks for connection of

relay contacts

RL red LED indicates the status of the relay:

on, RL relay energized

Earth connection of connector

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