Magnetrol Echotel 961 Functional Safety Manual - Echotel
51-650 Echotel SIL Safety Manual
Table of Contents
SIL Safety Manual for Model 961/962....................................1
Echotel Model 961/962 Ultrasonic Level Switches...........1
Application.......................................................................1
Benefits............................................................................ 1
1.0 Introduction................................................................... 3
1.1 Product Description.................................................. 3
1.2 Theory of Operation.................................................3
1.2.1 Transducer Design..........................................4
1.2.2 Transducer Materials...................................... 4
1.3 Determining Safety Integrity Level (SIL).................. 4
2.0 Applicable Models.......................................................... 5
3.0 Mean Time To Repair (MTTR).....................................5
4.0 Supplementary Documentation......................................5
5.0 Instructions.................................................................... 6
5.1 Systematic Limitations.............................................. 6
5.1.1 Application Locations.....................................6
5.1.2 Operating Temperature.................................. 6
5.1.3 Operating Pressure......................................... 6
5.1.4 Environmental................................................6
5.2 Skill Level of Personnel............................................. 6
5.3 Necessary Tools......................................................... 7
5.4 Storage...................................................................... 7
5.5 Installation................................................................ 7
5.5.1 Hygienic-Specific Installation......................... 8
5.5.2 Pump-Specific Installation..............................8
5.6 Configuration........................................................... 8
5.6.1 Time-delay Potentiometer.............................. 8
5.6.2 Level Test Push Button...................................8
5.6.3 Malfunction Test Push Button........................9
5.6.4 High/Low DIP Switch................................... 9
5.6.5 Independent/Joint DIP Switch....................... 9
5.6.6 Loop Test Push Button...................................9
5.6.7 Fault Test Push Button................................. 10
5.6.8 22/3.6 DIP Switch....................................... 10
5.6.9 PC/LC DIP Switch...................................... 10
5.7 Site Acceptance Testing........................................... 10
5.8 Maintenance............................................................ 10
5.8.1 Diagnostics...................................................11
5.8.2 Troubleshooting........................................... 11
6.0 Appendices................................................................... 12
6.1 SIL Declaration of Conformity............................... 12
6.2 FMEDA Report Management Summary................ 13
6.2.1 Model 961 Loop-Powered Level Switch....... 13
6.2.2 Model 961 AC/DC Ultrasonic
Level Switch with Relay Output...................13
6.2.3 Model 962 Loop-Powered Ultrasonic
Level Switches.............................................. 14
6.2.4 Model 962 AC/DC Ultrasonic
Level Switch with Relay Output...................14
6.3 Report - Lifetime of Critical Components.............. 15
Echotel
®
Model 961/962 Ultrasonic Level Switches