Magnetrol B60 - Default Chapter; Table of Contents

46-605 Flanged External Cage Float Actuated Liquid Level Switches
Table of Contents
1.0 Installation
1.1 Unpacking................................................................ 4
1.2 Critical Alarm Function............................................ 4
1.3 Piping....................................................................... 4
1.4 Mounting..................................................................5
1.5 Wiring...................................................................... 5
2.0 Reference Information
2.1 Description............................................................... 7
2.2 Theory of Operation.................................................7
2.3 Operating Cycle........................................................7
2.4 Switch Differential Adjustment.................................7
2.4.1 Low level controls...........................................8
2.4.2 High level controls......................................... 9
2.5 Replacement of Standard Float
and Stem Assembly................................................. 10
3.0 Troubleshooting
3.1 Check Switch Mechanism.......................................11
3.2 Check Sensing Unit................................................ 12
4.0 Preventive Maintenance
4.1 Recommended Practice........................................... 13
4.1.1 Keep control clean........................................13
4.1.2 Inspect switch mechanisms, terminals, and
connections monthly....................................13
4.1.3 Inspect entire unit periodically..................... 14
4.2 What To Avoid........................................................14
5.0 Specifications
5.1 Agency Approvals....................................................15
5.2 Physical................................................................... 16
6.0 Replacement Parts
6.1 Standard Flanged External Cage Models................. 18
6.1.1 Parts identification....................................... 18
6.1.2 Switch and housing reference....................... 18
6.1.3 Model C29...................................................18
6.1.4 Models D30, J30 and L30........................... 19
6.1.5 Models B60 and C60................................... 19
6.2 Tandem Flanged External Cage Models.................. 20
6.2.1 Parts identification....................................... 20
6.2.2 Switch and housing reference....................... 20
6.2.3 Model C29...................................................21
6.2.4 Models D30, J30 and L30........................... 21
6.2.5 Models B60 and C60................................... 21
7.0 Model Numbers.............................................................22
Flanged External Cage
Float Actuated
Liquid Level Switches