Model 971-3D Digital Tachometer tester

Our newly-introduced Model 971-3D Triple Digital Tachometer Tester
combines circuitry equivalent to three Model 971-2 testers and provides the
same precision. Housed in a rugged 19" rack-mount enclosure, it features
forced-air cooling for total reliability.

Basic Capabilities and Specifications

• Use for functional test or calibration in the aircraft or on the lab bench
• Can be used to test triple tachometers, such as used in helicopters
• User-selectable RPM auto-sweep mode for diagnostic testing
• 100 to 9,000 RPM range, in 1 RPM steps
• Accuracy of ± 0.1 RPM, or ± 1 PPS
• Dual-mode operation supports both 2-pole and 4-pole tachometers
• PPM, PPS digital outputs (TTL/VSRC) for pulse tachometers and flowmeters
• 5,12,24 volt 0.6amp (current limited) dc outputs/ for each channel
  

Safety Features

• Overload protection on all outputs
• Over-temperature protection
• Fused 115 VAC 60 Hz

Model 971-3 Additional Info

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