SDM-INT8

The SDM-INT8 provides eight channels individually programmed to detect voltage transitions, then output any combination of period, pulse width, frequency, counts, and time intervals. Processing by the datalogger yields RPM, duty cycle, velocity, crank angle, etc.
Features
Allows individual programming for each of the eight channels
Includes an internal microprocessor that allows measurement independent of datalogger's execution interval
Detects voltage transitions
Outputs any combination of period, pulse width, frequency, counts and time intervals to datalogger
Conforms to EN55022-1:1995 and EN50082-1:1992
Specifications
Operating Voltage: 9.6 to 16 Vdc
Current Drain: 13 to 20 mA, active; 400 µA, quiescent
Maximum Timing Measurement: 16.7 s
Resolution: ±1 µs
High Level Voltage Input Pulses
Minimum Pulse Width: 2 µs
Maximum Frequency (high resolution (32-bit) values; assumes all eight channels used):
Averaging Options: 5.1 kHz
Capturing All Events: 10 kHz
Low Level AC Voltage Input
AC Voltage: 20 mV RMS (minimum), 20000 mV RMS (maximum)
Input Hysteresis: 11 mV
Minimum Frequency: 1 Hz