961-20A0-010 Datasheet, PDF (3/36 Pages) Magnetrol International, Inc. – Ultrasonic Single and Dual Point Level Switches

Echotel^® Model 961 & 962
Ultrasonic Single and Dual Point
Liquid Level Switches
Table of Contents
1.0 Introduction ...................................................................4
1.1 Principle of Operation ..............................................4
2.0 Installation .....................................................................4
2.1 Unpacking ................................................................4
2.2 ESD Handling Procedure..........................................5
2.3 Mounting..................................................................5
2.4 Wiring ......................................................................6
2.4.1 Model 961 Line-powered Wiring ...................6
2.4.1.1 Model 961 Remote Transducer
Housing Wiring ......................................7
2.4.2 Model 961 Loop-powered Wiring..................8
2.4.2.1 Model 961 Remote Transducer
Housing Wiring ......................................8
2.4.3 Model 962 Line-powered Wiring ...................9
2.4.3.1 Model 962 Remote Transducer
Housing Wiring ....................................10
2.4.4 Model 962 Loop-powered Wiring................11
2.4.4.1 Model 962 Remote Transducer
Housing Wiring ....................................11
2.5 Configuration .........................................................12
2.5.1 Model 961 Line-powered Configuration ......12
2.5.1.1 Time Delay Potentiometer ....................13
2.5.1.2 Level Test Push Button..........................13
2.5.1.3 Malfunction Test Push Button ..............13
2.5.1.4 High/Low DIP Switch ..........................14
2.5.1.5 Independent/Joint DIP Switch..............14
2.5.2 Model 961 Loop-powered Configuration.....15
2.5.2.1 Time Delay Potentiometer ....................15
2.5.2.2 Loop Test Push Button..........................15
2.5.2.3 Fault Test Push Button..........................15
2.5.2.4 High/Low DIP Switch ..........................16
2.5.2.5 22/3.6 DIP Switch ................................16
2.5.3 Model 962 Line-powered Configuration ......17
2.5.3.1 Time Delay Potentiometer ....................17
2.5.3.2 Level Test Push Button..........................17
2.5.3.3 Malfunction Test Push Button ..............17
2.5.3.4 High/Low DIP Switch ..........................18
2.5.3.5 PC/LC DIP Switch ...............................18
2.5.3.6 LC and Hi/Lo DIP Switch Configuration 18
2.5.3.7 PC and Hi/Lo DIP Switch Configuration 19
2.5.4 Model 962 Loop-powered Configuration.....20
2.5.4.1 Time Delay Potentiometer ....................20
2.5.4.2 Loop Test Push Button..........................20
2.5.4.3 Fault Test Push Button..........................20
2.5.4.4 High/Low DIP Switch ..........................21
2.5.4.5 22/3.6 DIP Switch ................................21
3.0 Reference Information..................................................22
3.1 Electronics Specifications ........................................22
3.1.1 Model 961/962 with Relay Output..............22
3.1.2 Model 961/962 with Current Shift Output .22
3.2 Performance Specifications ......................................22
3.3 Physical Specifications.............................................22
3.4 Transducer Specifications ........................................23
3.4.1 Model 9A1/9M1 Single Point ......................23
3.4.2 Model 9A2/9M2 Dual Point........................23
3.5 Dimensional Specifications .....................................24
3.6 Agency Approvals....................................................26
3.6.1 Agency (FM/CSA) Drawing and
Entity Parameters .........................................27
3.7 Troubleshooting ......................................................28
3.8 Replacement Parts...................................................30
3.9 Model Number .......................................................32
3.9.1 Model 961/962 Electronics ..........................32
3.9.2 Model 961 Single Point Transducer..............33
3.9.3 Model 962 Dual Point Transducer ...............34
3.9.4 Connecting Cable ........................................35
51-646 Echotel^® Model 961 & 962 Ultrasonic Level Switches