GZJY-2A-type speed standard device

▲ Features 1. Speed ??can be used for verification, reversal protection and overspeed protection and other instruments and speed speed measuring system 2. Configure annex complete, photoelectric or mechanical, hand-held, contact and non-contact, etc. tachometer check 3. Applicable to a variety of magnetic-electric, magnetoresistive, Hall, eddy current speed sensor calibration 4. Configure specific accessories available on various aviation tachometer, marine tachometer 5. check the calibration of various types of Tacho output characteristics 6. Output standard electrical source, the secondary speed measurement instrument calibration 7. separately configured with the speed sensor signal input interface, in the absence of secondary instrument case , separate check for speed sensor (for active speed sensors provide several types of voltage drive) 8. suitable for level measurement sector with higher requirements for provincial or research enterprises ▲ Performance 1 speed range: 20 ~ 33000 r / min 2 Speed ??uncertainty: 1 × 10-4 3 Speed ??stability: 5 × 10-5 4 timebase performance: Power Accuracy 2 × 10-6 May 2 × 10-6 stability timebase frequency 10 MHz 5 Speed ??Resolution: 0.1 (20 ~ 600 r / min) 1 (600 ~ 6600 r / min) 5 (6600 ~ 33000 r / min) 6 standard electrical signal output: Frequency range 2 ~ 9999 Hz, the accuracy of 1 × 10- 5, square-wave amplitude of 12V 7 can output DC voltage: ± 5V, ± 12V, ± 24V 8 access outside the test signal required range: 1 ~ 9999 Hz, the amplitude greater than 0.5V 9 Total Power: ≤300 W