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MN301460 Rev A
Introduction / Table of Contents
Step One
Intended for side wall installation, the general-purpose level switch package provides reliable liquid level
detection with single 60 VA relay and a compact junction box for integral wiring termination. Offered in two level
sensor technologies, select the type and material based upon your application media. This liquid level switch
package is widely applied in bulk storage and process tank level applications for high level control or low-level
control.
FEATURES
Rugged Polypropylene, Ryton® or PFA sensor for corrosive liquids applications.
60 VA relay selectable NO or NC via power supply polarity
Polypropylene enclosure rated NEMA 4X with swivel base for conduit alignment.
Offered in two sensing technologies for broad application coverage: ultrasonic and vibration.
TABLE OF CONTENTS
Specifications: ....................................................................................................................................................... 3
Dimensions: .......................................................................................................................................................... 4
Components: ........................................................................................................................................................ 5
Standard
Configuration:
............................................................................................................................ 6
Technology: .......................................................................................................................................................... 7
Vibration:
................................................................................................................................................... 7
Ultrasonic:
................................................................................................................................................. 8
Safety Precautions: ............................................................................................................................................... 9
Make a Fail-Safe System: ....................................................................................................................... 10
Getting Started: ................................................................................................................................................... 11
Guide to Controls: ................................................................................................................................... 11
Electrical: ............................................................................................................................................................ 12
Connecting Switch to Input Terminals: ................................................................................................... 12
VAC Power Input Wiring: ........................................................................................................................ 12
Changing from 120 to 240 VAC: ............................................................................................................. 12
Relay
Input
Wiring:
.................................................................................................................................. 13
Strobe Alert Output: ................................................................................................................................ 13
Installation: .......................................................................................................................................................... 14
Install in a dry location: ........................................................................................................................... 14
Application Examples: ........................................................................................................................................ 15
High
Alarm:
............................................................................................................................................. 15
Low
Alarm:
.............................................................................................................................................. 15
Appendix: ............................................................................................................................................................ 16
Controller
Logic:
...................................................................................................................................... 16
Troubleshooting:
..................................................................................................................................... 16
Maintenance: ...................................................................................................................................................... 17
Cleaning
Procedure:
............................................................................................................................... 17
Current test (sensor alone): .................................................................................................................... 17
Warranty, Returns and Limitations: .................................................................................................................... 18