V6350 pages

V635
8-channel, 100 kHz Frequency Counter

The V635 is a single-width,
C-size, register-based, VXIbus
module with eight frequency
measurement channels. “D”
connector and BNC connectort
options are available.

This counter module can be used
to monitor a variety of pulse
sources. Its unique circuitry
allows the monitoring of a wide
range of frequencies without
changing any module settings.

Counts from 0.06 Hz to 100 kHz without changing ranges

APPLICATIONSt

Features

Monitoring shaft encoders and othert
devices to measure RPM from shaftst

•t Contains eight frequency counter channels

on automotive and jet aircraft engines

•t Frequency range from 0.06 Hz to 100 kHz

Measurement of flow meters

•t Differential and TTL input options (TTL inputs not

General-purpose monitoring of inputt
pulses

•t “D” and BNC input options available

provided on BNC module options)

•t Inputs programmable on a per-channel basis:
•t Differential input range options: 20 mV - 20 V peak-to peak t t
(V635-AA21) 100 mV - 20 V peak-to peak (V635-AB21)
•t AC/DC differential inputs
•t Programmable observation window: 1 ms to 1.024 s
•t Precision time base (±1 ppm, 10°C to 50°C)

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