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Summary of Contents for Phoenix Engineering RoadRunner
- Page 1 Operators Manual RoadRunner Digital Tachometer...
- Page 2 The RoadRunner is a microprocessor controlled digital tachometer used for monitoring turntable platter speed to 3 decimal places of resolution. The internal time base is a temperature compensated crystal oscillator (TCXO) accurate to 2.5 PPM (±0.00025%) with less than 1.0 PPM aging per year.
- Page 3 Specifications Physical: Dimensions: 3.565" x 2.50" x 1.1875" Weight: 4 oz. Case: 1 piece Extruded Aluminium. Operating Modes: Standby, Sleep, Normal. Power Requirements: DC Supply 9VDC 100 mA nominal; 5mA Sleep Output: Display: 6 digit LED direct readout of platter speed in RPM Resolution: 0.001 RPM Serial Data:...
- Page 4 Operation Attach the magnet to the underside of the platter near the edge as shown below. Attach the sensor PCB to the plinth so the magnet passes directly over the hall effect sensor (Q1) as shown. Connect the tachometer to the sensor by plugging the 2.5mm jack into the back of the tachometer (marked “Sensor”) and the 3.5mm right angle jack into the sensor PCB.
- Page 5 Note: Whenever the PSU is applying a correction to the speed, the decimal point will blink on the PSU's LED display. Accumulated Playing Time Counter: RoadRunner tachometers with serial numbers >540511 have a built-in accumulated playing time counter. The counter shows the total time the platter has been spinning and can be used to determine when the stylus needs to be re-tipped.
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