JMSVT Vibrating Tuning Fork Brochure

OPERATIONThe JMSVT series is designed using the principles of a tuningfork. Piezo-electric crystals are used to force the forks to oscil-late at their fundamental frequency (natural resonance.) If theJMSVT is installed as a high alarm, the forks are free to oscil-late in air, as your liquid level rises and covers the forks theyare dampened – it is this change in the frequency that indicatesthe JMSVT to switch. With different electronic outputs tochoose from, this allows you to switch a load on / off or inter-face directly with your PLC. A compact switch with a ruggedstainless steel body for use in a wide range of liquids, JMSVTis the stock answer to your level switch needs. FEATURES• Heartbeat Led• Failsafe High• Magnetic Test Point• Hygienic Fittings• Resistant to Bubbles & Vibration• Reverse polarity protected• Small Fork for Minimal Vessel IntrusionSPECIFICATIONSJMSVTO * Direct load switchingPower Supply: 21 to 264 ???????.............................(50/60Hz) Max. switched load ....................................................500 mA Max. peak load ..................................................................5 A Min. switched load .....................................20mA continuous Voltage drop 6.5V @ 24V dc / 5.0V @ 240V ac Current drawn (load off) .........................<3.0mA continuous Supply current ..................................................................N/A Output current (load)........................................................N/A PNP Switching JMSVT1* Power supply...........................................................18-60Vdc Max. switched load ....................................................500 mA Max. peak load...................................................................5A Min. switched load..........................................................N/A. Voltage drop .....................................................................<3V Current drawn (load off) ..................................................N/A Supply current..................................................3 mA nominal Output current (load off) ..........................................<0.5 mA ®A Division Of The Clark-Reliance CorporationSpecialists in Liquid Level IndicationInstallation, Operation and Maintenance forJMSVT Vibrating Tuning ForkLiquid Level SwitchSection: JS100Bulletin: JS100.20Date: 10/1/04JERGUSON® GAGE AND VALVEA Division of The Clark • Reliance® Corporation16633 Foltz Industrial Parkway • Strongsville, OH 44149 USATelephone: (440) 572-1500 • Fax: (440) 238-8828CFaddenRectangleCFaddenTypewritten Text2/7/12CFaddenTypewritten TextCFaddenTypewritten TextCFaddenTypewritten TextCFaddenTypewritten TextCFaddenTypewritten TextCFaddenTypewritten TextCFaddenTypewritten Text