Ortec 871 Timer And Counter

US $970

  • Albuquerque, New Mexico, United States
  • May 29th
Selling as is:  Powers up, as can be seen in picture.  Unable to test unit.  8-decade presettable timer and counter • 25-MHz positive or negative input count rate • Crystal-controlled time base • Auto recycle dwell time control Specifications PERFORMANCE COUNT CAPACITY Eight decades in each of the two sections. COUNTING RATE 25 MHz  TIME BASE 0.1-s and 1-min increments derived from a 1-MHz crystal-controlled oscillator; instability <±2 ppm/°C, 0 to 50°C; inaccuracy <±5 ppm; time base register controlled by counting gate. PULSE PAIR RESOLUTION 40 ns minimum. AUTOMATIC RESET Generated when power is applied. INDICATORS AND CONTROLS COUNTER/TIMER DISPLAY 8 characters, 7- segment LED per character, plus decimal point. TIMER PRESET 2 characters, 7-segment LED per character. GATE LED illuminates when the unit is in the counting condition. OVFL LED illuminates from the first overflow of the counter or timer that is currently being displayed. COUNTER LED illuminates when counter data are being displayed. TIMER LED illuminates when timer data are being displayed. 0.1 SEC LED illuminates when the time base is 0.1 second. Manuals, schematics available online

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