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Laurel Electronics LT: Ethernet & 4-20 mA Output Transmitter for Frequency, Rate or Period Input User Manual

Page 3

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LAUREL

ELECTRONICS INC.

, 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 3

Pinout

Mechanical

Application Examples of Frequency / Rate Meters & Transmitters

AC Line Frequency

Laureate frequency meters and transmitters accept line voltages
up to 250 Vac and output line frequency to 6-digit accuracy
(50.0000 or 60.0000) in a few line cycles. Fast low frequency
response is achieved by timing the period and taking its inverse.

RPM and Speed

Laureate frequency meters and transmitters can sense low-level
signals from magnetic pickups or the NPN or PNP transistor
output of active sensors. These can be powered directly by the
meter or transmitter. Output in RPM or units of speed is
achieved by mathematical scaling.