JH2376 - Isolated Pulse Conditioner
Model JH2376 pulse conditioner accepts a wide range of input voltages and waveforms and produces an isolated 5 volt logic pulse output at the same frequency. It may be used to isolate and condition signals ranging from millivolt-level magnetic pickups to 230Vac power frequencies. No calibration is needed - the output frequency automatically equals the input.
Two sets of input connections support a wide range of applications. The low input connection is optimized for sensors such as magnetic coil tachometer and turbine meter pickups, while high level applications such as power monitoring and variable frequency drives use the high input. (Use the high input for logic pulses.) Adjustable sensitivity, built-in hysteresis and optional filtering minimize interference from noise pickup. Applications range from turbine flow sensors and tachometers to power monitoring and other high voltage applications.
The one-inch-wide case snaps onto DIN rail. The terminal strip unplugs for ease of replacement. The JH2376 handles input frequencies from DC to 40kHz (0.2Hz minimum on high input). When used in high humidity or dirty environments, optional urethane circuit board coating is available.
Model JH2376 snaps onto 35mm DIN rail. Connections are made to the front-panel terminals. The terminal unplugs to facilitate testing or replacing the instrument.
Connections to the 8 terminals (top to bottom) are:
1: High voltage positive input (generally above 1 volt - see specs).
2: Input common (for both high and low voltages).
3: Low voltage positive input (generally below 1 volt - see specs).
4: Optional filter. Connect terminals 4 & 2 together to activate the filter.
5: Pulse output (plus).
6: Pulse output common.
7: AC power.
8: AC power.