CLE1K

## **Conductive Sensors** Level probes **Types CLHx** 

- Flexible conductive level probe 

- 1 to 5 electrodes 

- User defined electrode length 

- Isolated or unisolated electrodes 

- 1 1/2” pipe thread according to ISO 228/1-G11/2A 

## **Description** 

A compact and flexible level probe for measuring the level of conductive liquids, i.e overfill, dry run protection or pump control. A total measurements system consist of a multiple probehead, 1-5 electrodes and a control unit. 

## **Part selection key** 

The electrode length can be **CL -** Conductive sensor freely defined be means of **H -** Head mounting electrode extention units - with or without isolation. **3** 3 electrodes **X 5** 5 electrodes ~~———~~ 

## **Part selection - Probe** 

|**Numer of electrodes**|**Pipe thread**|**Housing material**|**Part number**|
|---|---|---|---|
|3|1 1/2”|PP|**CLH3**|
|5|1 1/2”|PP|**CLH5**|



## **Part selection - Electrode (must be ordered separately)** 

|**Type of electrodes**|**Part number**<br>**1000 mm basic**<br>**Thread in one end**|**Part number**<br>**2000 mm extended**|**Part number**<br>**Extension 1000 mm**<br>**Thread in both ends**|
|---|---|---|---|
|Electrode without isolation<br>|<br>||**CLE11)**<br>||**CLE22)**<br>|<br>||**CLE1X3)**<br>||
|Electrode with isolation, Kynar(PVDF)<br>~~es~~|**CLE1K1)**<br>~~es~~|**CLE2K2)**<br>~~es~~|**CLE1KX3)**<br>~~es~~|
|Electrode with isolation, Polyolefine(FR)<br>~~es~~|**CLE1P1)**<br>~~es~~|**CLE2P2)**<br>~~es~~|**CLE1PX3)**<br>~~es~~|



1. 1000 mm Basic electrode for no further extension 

2. 1000 mm Basic electrode for extension, 1000 mm extension electrode, 1 extension joint, 1 isolation tube (not CLE2) 

3. 1000 mm extension electrode, 1 extension joint, 1 isolation tube (not CLE1X) 

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Carlo Gavazzi Industri A/S. COPYRIGHT ©2025. Content subject to change without notice (02.07.2025) 

CLHx 

## **Features** 

## **Environmental data** 

**Ambient temperatures** Operating -20°…+90°C (-4°…+194°F)* Storage -40°…+100°C (-40°…+212°F)* **Categorization** Pollution degree 2 (IEC 60664/60664A, 60947-1) Overvoltage category III (IEC 60664) IP65 (Housing) Degree of protection IP68 (Electrode connection) **Pressure** 5 bar at 60°C 

## **Mode of Operation** 

## **Functionality - example** 

The diagram shows the level control system connected as max. and min control, i.e. registration of 2 levels + 2 alarm levels. The relays react to the low alternating current created when the electrodes is in contact with the liquid. 

The reference (Ref) must be connected to the container or if the container are made of a nonconductive material, to an additional electrode. In the diagram this electrode is shown by the dotted line. 

## **Electrodes** 

Cut or extend the electrodes to the desirable length. If using extended electrodes, place the enclosed isolation tube over the extension joint, and heat it with a  heat gun. 

Mount the electrodes in the probehead by means of the  M4 screw inserts. Take care not to damage the isolation material of the isolated electrodes. 

**==> picture [227 x 156] intentionally omitted <==**

**----- Start of picture text -----**<br>
Example<br>Control Probe<br>Y4 Y2 Y5<br>Unit<br>Y3 Y1<br>12<br>14 24<br>Pump on/off A1 Alarm on/off<br>A2<br>11 21<br>is Power Supply il<br>CLH5 connected to control unit CLD4/CLP4.<br>Filling or emptying with low and high alarms.<br>REF LoLo Lo Hi HiHi<br>**----- End of picture text -----**<br>


## **Connection cable** 

2, 3, 4 or 5 conductor PVC cable, normally screened. Cable length: max. 100 m. The resistance between the cores and the ground must be at last 200k. In normal cases it is recommended to use screened cable between probe and controller, e.g. where the cable is placed in parallel to the load cables (mains). The screen has to be connected to Y5 (reference). 

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Carlo Gavazzi Industri A/S. COPYRIGHT ©2025. Content subject to change without notice (02.07.2025) 

CLHx 

## **Structure** 

## **Probe head** 

|**Material**|PP (Polypropylen)|
|---|---|
|**No of electrodes**|CLH3: 3 electrodes<br>CLH5: 5 electrodes|
|**Electrode connection**|M4|
|**Tightening torque**|2.7 Nm byhand -K & -P|
|**Cable connection**|Screw terminals|
|**Cable size**|Ø8 - Ø13 mm|
|**Weight**|260g|



## **Electrodes** 

|**Material**|Stainless steel, AISI316/DIN1.440|
|---|---|
|**Length**|CLE1: 1000 mm<br>CLE2 : 2000 mm|
|**Diameter**|Ø4|
|**Isolation**|CLE.K.: Kynar(PVDF)<br>CLE.P. : Polyolefine(FR)|
|**Weight**|107g|



## **Dimensions in mm** 

M12 x 1.5 

**==> picture [74 x 51] intentionally omitted <==**

**----- Start of picture text -----**<br>
M20 x 1.5<br>1 1/2” pipe thread<br>**----- End of picture text -----**<br>


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Carlo Gavazzi Industri A/S. COPYRIGHT ©2025. Content subject to change without notice (02.07.2025) 

CLHx 

## **Compatibility and conformity** 

## **Approvals and markings** 

## **General reference** 

CE-marking 

## **Delivery contents and accessories** 

## **Delivery contents** 

- Probe Head 

- M20 Cable Gland 

- M12 Blind flange 

- Installation Instruction 

## **Accessories** 

- Extension joint Ø4 

- 60 mm Kynar for isolation 

- 60 mm Polyolefine for isolation 

- M12 Cable Gland 

- M20 Cable Gland 

- VM15 nut to the 1 1/2” pipe thread 

## **Further information** 

**Carlo Gavazzi website** www.gavazziautomation.com 

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Carlo Gavazzi Industri A/S. COPYRIGHT ©2025. Content subject to change without notice (02.07.2025)