Valve Communication Terminals (VCTs) Devic - StoneL
Valve Communication Terminals (VCTs) Devic - StoneL
Valve Communication Terminals (VCTs) Devic - StoneL
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Mechanical Switch (SPDT)Low cost single-pole doublethrowmechanical switcheswith silver contacts are recommendedfor high power 125 VACapplications. Gold contacts maybe used in 30 VDC computerinput applications.CNCNOvalve communication and controlMechanical Switches and Transmitters (QUARTz)Specifications and RatingsSilver Contacts (V Function)Electrical Ratings10 Amp @ 125/250 VAC0.5 Amp @ 125 VDCTemperature Range -40° to 80° C (-40º to 176º F)Operating Life400,000 CyclesNot recommended for electrical circuits operatingat less than 20 mA @ 24VDC.Gold Contacts (W Function)Electrical Ratings1.0 Amp @ 125 VAC0.5 Amp @ 30 VDCTemperature Range -40° to 80° C (-40º to 176º F)Operating Life100,000 CyclesMechanical Switch (DPDT)Double-pole double-throwmechanical switches enable twoelectrical circuits to be activatedsimultaneously. Each switchcircuit is electrically isolatedfrom the other. As with standardsilver contacts, DPDT switchesare designed to operate in highpower applications.CNCNO14 FunctionElectrical Ratings 4.5 Amp @ 125/250 VACTemperature Range -40° to 80° C (-40º to 176º F)Operating Life250,000 CyclesNot recommended for electrical circuits operating at less than20 mA @ 24VDC.NCCNO4 to 20 mAPosition TransmitterPosition transmitters provide aprecise 4 to 20 mA signal ona two wire DC loop. Controlvalves and dampers areaccurately monitored throughtheir range of travel offering youassurance of exact valve positionat all times. Select a standardpotentiometer or a vibrationproof, high-performancepotentiometer on your positiontransmitter.OutputTwo Wire 4 to 20 mASupply Source 10-40 VDCSpan Range* 35° to 270° (Adjustable)Maximum Loading 700 Ohms @ 24 VDCLinearity ErrorStandard (5) +/-0.85° MaximumHigh Perf. (7) +/- 0.35°Cycle LifeStandard (5) 2 Million RotationsHigh Perf. (7) 50 Million RotationsVibration ToleranceStandard (5) AcceptableHigh Per. (7) OutstandingTemperature Range -40° to 80° C (-40º to 176º F)*Please consult factory for higher spans.VCT/SensorsLoad CurveElectricalSchematic55%4 - 20 mA ReadoutVoltage Supply<strong>StoneL</strong> ® • Phone: 1-218-739-5774 • www.stonel.com39
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