Curtis Computer 833 manual Pin 3 = Relay +, Pin 4 = Relay

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Pin 3 = Relay (+)

Pin 3 connects in series with the lift coil circuit (or the circuit to be switched at empty). For holding relay (J), Pin 3 must be electrically closer to battery + than Pin 4

Pin 4 = Relay (–)

Pin 4 also connects in series with the circuit to be switched at empty.

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Contents Read Instructions Carefully ModelSafety Instructions Table of Contents 833RB Vvvv Model EncodementZzzz Relay Contact Ratings Technical SpecificationsElectrical Operating Range Operating CurrentPanel Cutout ResolutionMechanical Display Hardware KitShock TemperatureEnvironmental Pin 8 = Battery + InstallationPins 1, 2, 6 & 7 = Hour Meter Control + Pin 5 = BatteryPin 2 = Keyswitch Pin 4 = Relay Pin 3 = Relay +Maximum Minimum Switch MeterModel High VoltageSetting Discharge AdjustmentsCurtis Model 833 Rear View Connections for Typical Model 833 Application LCD Hour Meter OperationDisplay Push-to-read Problem Possible Causes TroubleshootingMaintenance All specifications are subject to change Without notice Kisco Avenue, Mt. Kisco, NY 10549 Tel 666-2971 FAX 914 Curtis INSTRUMENTS, INC