Safety Notes ...........................................................................................................................................1

Safety marking symbols ..............................................................................................................1

The Manual .....................................................................................................................................1

Application Examples ...................................................................................................................2

............................................................................................................................................................2

Technical Support ..........................................................................................................................2

Abbreviations and Identifications .............................................................................................3

Pointek CLS500 .................................................................................................................... 4

Technical Specifications: Pointek CLS500 ..................................................................... 5

Pointek CLS500 Transmitter .............................................................................................. 9

Operating Principles .............................................................................................................................9

Pointek CLS500 variable frequency oscillator ........................................................................9

The Pointek CLS500 electrode .........................................................................................................10

Application: Pointek CLS500 .............................................................................................................12

Product or Interface detection ...............................................................................................12

Level Detection ............................................................................................................................13

2-state Switch ..............................................................................................................................13

Fault Signalling .............................................................................................................................13

Pointek CLS500: Probe Configuration ........................................................................... 15

Pointek CLS500 Electrode (Probe) Characteristics .....................................................................15

High pressure and high temperature applications .............................................................16

Electrode Assembly ............................................................................................................................16

Pointek CLS500: Standard Level Version ...............................................................................16

Process Connections ..................................................................................................................16

Seal Types .....................................................................................................................................16

Process Connection and Seal Configuration of Pointek CLS500 ....................................17

Pressure and Temperature Considerations ..........................................................................17

Pressure/Temperature Curves ........................................................................................ 18

Installation: Pointek CLS500 ..........................................................................................24

Handling Electrodes ...........................................................................................................................24

Location .................................................................................................................................................25

Mounting Instructions .......................................................................................................................25

Mounting Cautions .....................................................................................................................26

Process Cautions .......................................................................................................................27

Interconnection: Pointek CLS500 ..................................................................................28

Wiring ....................................................................................................................................................28

Supply .............................................................................................................................................28

Cable ...............................................................................................................................................29

Selecting the correct instrumentation cable ......................................................................29

Terminals ..............................................................................................................................................30

Connecting Pointek CLS500 ..............................................................................................................31

Connection Diagram .................................................................................................................31