High Output Industrial VRS Magnetic Speed Sensors The output signal of a VRS sensor is an ac voltage that varies DESCRIPTION in amplitude and wave frequency as the speed of the High Output VRS sensors are designed for use in applications monitored device changes, and is usually expressed in peak to where higher output voltages are needed. They perform best at peak voltage (Vp-p). low to medium speeds with medium to high impedance loads. Front-End Sealed versions are available for use where the One complete waveform (cycle) occurs as each target passes sensor is exposed to fluids, lubricants or adverse the sensors pole piece. If a standard gear were used as a environmental conditions. target, this output signal would resemble a sine wave if viewed on an oscilloscope. Passive VRS (Variable Reluctance Speed) Magnetic Speed sensors are simple, rugged devices that do not require an Honeywell also offers VRS sensors for general purpose, power external voltage source for operation. output, high resolution, high temperature, and hazardous location applications, as well as low-cost molded versions. A permanent magnet in the sensor establishes a fixed magnetic field. The approach and passing of a ferrous metal target near the sensors pole piece (sensing area) changes the flux lines of the magnetic field, dynamically changing its strength. This change in magnetic field strength induces a current into a coil winding which is attached to the output terminals. FEATURES POTENTIAL APPLICATIONS Self-powered operation Engine RPM (revolutions per minute) measurement on Direct conversion of actuator speed to output frequency aircraft, automobiles, boats, buses, trucks and rail Simple installation vehicles No moving parts Motor RPM measurement on drills, grinders, lathes and Designed for use over a wide range of speeds automatic screw machines Adaptable to a wide variety of configurations Motor RPM measurement on precision camera, tape Customized VRS products for unique speed sensing recording and motion picture equipment applications Process speed measurement on food, textile, paper, Housing diameters: 5/8 in (M16), 3/8 in (M12) woodworking, printing, tobacco and pharmaceutical Housing materials/styles: stainless steel threaded or industry machinery smooth Motor speed measurement of electrical generating Terminations: MS3106 connector, preleaded equipment Output voltages: 8 Vp-p to 190 Vp-p Speed measurement of pumps, blowers, mixers, exhaust and ventilating fans Flow measurement on turbine meters Wheel-slip measurement on autos and locomotives Gear speed measurement High Output 5/8 INCH (M16*) SENSORS (All dimensions for reference only. mm/ in ) *Contact Honeywell for availability of metric mounting thread versions. General Specifications Test Condition Specifications Parameter Characteristic Parameter Characteristic Parameter Characteristic Min. output voltage 190 Vp-p Inductance 450 mH max. Surface speed 25 m/s 1000 in/s Coil resistance 910 Ohm to 1200 Ohm Gear pitch range 24 DP (module 1.06) Gear 20 DP or coarser (module 1.27) Pole piece 2,69 mm 0.106 in Optimum actuator 20 DP (module 1.27) Air gap 0,127 mm diameter ferrous metal gear 0.005 in Min. surface 0,25 m/s 10 in/s typ. Max. operating 15 kHz typ. Load 100 kOhm speed frequency resistance Operating temp. -55 C to 120 C Vibration Mil-Std 202F range -67 F to 250 F Method 204D Mounting thread 5/8-18 UNF-2A Termination MS3106 connector Catalog Thread Weight Listing Length (A) 3030AN 28 mm 1.1 in 70 g 2.5 oz 3030AN25 63 mm 2.5 in 84 g 3.0 oz 3030AN30 76 mm 3.0 in 84 g 3.0 oz 3030AN40 101 mm 4.0 in 98 g 3.5 oz 3030AN50 127 mm 5.0 in 128 g 4.5 oz General Specifications Test Condition Specifications Parameter Characteristic Parameter Characteristic Parameter Characteristic Min. output voltage 190 Vp-p Inductance 450 mH max. Surface speed 25 m/s 1000 in/s Coil resistance 910 Ohm to 1200 Ohm Gear pitch range 24 DP (module 1.06) Gear 20 DP or coarser (module 1.27) Pole piece 2,69 mm 0.106 in Optimum actuator 20 DP (module 1.27) Air gap 0,127 mm diameter ferrous metal gear 0.005 in Min. surface 0,25 m/s 10 in/s typ. Max. operating 15 kHz typ. Load 100 kOhm speed frequency resistance Operating temp. -55 C to 120 C Vibration Mil-Std 202F range -67 F to 250 F Method 204D Mounting thread 5/8-18 UNF-2A Termination 20 AWG Teflon- insulated Leads Catalog Thread Weight Listing Length (A) 3030S20 50 mm 2.0 in 70 g 2.5 oz 3030S30 76 mm 3.0 in 84 g 3.0 oz 2 www.honeywell.com/sensing