Encore Electronics

MODEL 236 DIGITAL FREQUENCY TO VOLTAGE CONVERTER

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Features

  • Fast response
  • High accuracy
  • Delta-T (period deviation) mode

Description
The Model 236 digital frequency to voltage converter can be jumper-selected at one of two fullscale frequencies, and will operate down to 0.25% of full scale. Standard ranges are 3kHz and 25kHz, with others available on request. Another internal jumper selects between normal F/V operation and Delta-T operation, where the output indicates cycle-by-cycle deviation from average period.

Specifications

Input: 0.025V peak to 100V peak
Common mode rejection: 2.5VRMS DC to 1kHz will not trigger the unit
Input comparator: Automatic adjustment of threshold, optimized for variable reluctance pickups
Frequency ranges: Internal jumper selects one of two fullscale ranges: 25kHz or version-specific lower range (1kHz, 1.5kHz, 3kHz, 10kHz)
Low-input cutoff: Input signal frequency below 0.25% fullscale will cause outputs to go to zero and a no-input indication to light
Analog output: Version-specified 0-5VDC or 0-10VDC fullscale output, with front panel trimpots to adjust span and zero
Output accuracy: ±0.05% of fullscale reading
Transient response: 2/f (two periods of input signal) max.
Output noise: 5mVRMS max., DC to 100kHz
Mechanical: DIN rail mount plastic enclosure, 2.9″ x 3.1″ x 0.9″