Variable Freq. Alt. Tachometer Product Description 2-Inch Variable Frequency Alternator tachometer connects to the Alternator signal. The tachometer has four range selections for rough calibration and an adjustment potentiometer for fine adjustment. The use of DIP switches on the back of this tachometer allows a rough calibration selection for the desired frequency. This tachometer can be used in 24 VDC systems with the use of an adaptor that connects between the 24 VDC ignition system and the tachometer. Faria Beede Instruments, Inc. P. O. Box 983 Uncasville, CT 06382 860.848.9271 Fax: 860.848.2704 88 Village Street Penacook, NH 03303 603.753.6362 Toll-free: 800.451.8255 Fax: 603.753.6201

Specifications Electrical Specifications Environmental Specifications Shock (Non-operating): 50 +/- 2 G and a half sine duration of 11 +/- 2 ms. per MIL-STD-202, Method 213 Vibration (Non-operating): 4 G peak, 10 to 200Hz SAE J1455 Appendix A Temperature: Operating, -20°C to 85˚C Storage, -30°C to 85°C) 50% RH Humidity: 95% Relative humidity @110°F (43°C) non-condensing Salt Spray: Meets or exceeds ASTM 117-73 Reverse Polarity Protection: Standard entire system Load Dump: Meets SAE J1113, 3 positive 80V transients one minute intervals Operating Voltage: 11-16VDC standard Over Voltage: 18 VDC for...