Description
he SNAP-AIRATE-HFi module provides frequency to digital conversion. Each of the two isolated channels can be configured for a 0.1-second measurement interval, providing an input range of 20 Hz to 500 kHz, or a 1-second measurement interval, providing an input range of 2 Hz to 500 kHz.
Nine volts through a 3.6 kOhm pull-up resistor is provided internally for each channel for use with devices that have open-collector outputs. This feature eliminates the need for you to provide the pull-up voltage supply and associated wiring, barrier strips, and so on. The module works with TTL, CMOS, and open-collector outputs.
