Product Focus - Pulse Conditioner

MODEL JH2376

PULSE CONDITIONER

Full-featured Model JH2376 is the "big brother" to our low-cost JH376/JH377 pulse amplifier & converter (blog posting Oct 10, 2009). Fully isolated and capable of handling voltages from 20mV to 250Vrms (700V peak-to-peak) it serves applications ranging from tachometers and flow turbines to power and VFD (variable frequency drive) frequency monitoring. The input is safely isolated and converted to a 5V logic pulse output.

Adjustable sensitivity and optional filtering allow the user to tailor the unit for each application, optimizing sensitivity and frequency response versus noise rejection. DIN-rail mounted, the JH2376 is available with 115 and 230Vac power options.

Here's a link to the spec sheet: JH2376 Pulse Conditioner

Our previously-announced pulse conditioners are:

• Model JH376 Pulse Amplifier. Millivolt inputs, dual channel, low cost, nonisolated.
• Model JH377 Pulse Converter. Converts 5V logic to open-collector and vice versa. Dual channel, low cost, nonisolated.

We also make:

• DC to Frequency Converters (Integrators: Models JH7500 & JH7501. JH7500, 5V logic pulse or open-collector output. JH7501, relay contact output, low pulse rates only. Plug-in style.
• Model JH7010I Frequency to DC Converter (Frequency Input Transmitter). Plug-in style, fixed range.
• Model JH7580 Frequency to DC Converter (Frequency Input Transmitter). Plug-in style, user-rangeable.
• Model JH5700 Frequency to DC Converter (Frequency Input Transmitter). DIN-rail mount, fixed range.
• Model JH1700 & JH1720 Frequency Input Alarm Trips. Plug-in style, fixed range. JH1700, single trip. JH1720, dual trip.

Signal Conditioners (our web site): http://www.jhtechnology.com/

New Products

Integrators
(DC to Frequency Converters)

Brand-new Models JH7500 & JH7501 integrators convert a DC measurement signal (voltage or current) to a proportional frequency. JH7500 is the general-purpose version. JH7501 operates at low pulse rates - its output is a set of relay contacts that 'click' at the output pulse rate.

Integrator - why the name?

The original - and still common - application is to totalize, or "integrate" flow measurements. A signal from a flowmeter represents flow rate (such as gallons per minute). Each output pulse represents a fixed quantity (such as a gallon, fraction of a gallon or number of gallons). The pulses are fed to a counter. The faster the flow the faster the pulses, so the total flow may be found by reading the counter. Similarly, if the input represents instantaneous power (kilowatts) the total represents power usage (kilowatt-hours).

More modern applications include signal conversion (convert a DC measurement signal to frequency for a PLC's input) and tone telemetry (transmit the converted frequency over a distance, then convert it back to DC at the receiving eng. JH Technology offers frequency to DC converters (also called frequency input transmitters) to perform the receiving end conversion.

For product details click:
JH7500/JH7501 Integrators (DC to Frequency Converters
JH7010I Frequency to DC Converter (Plug-in style, fixed range)
JH7580 Frequency to DC Converter (Plug-in style, user rangeable)
JH5700 Frequency to DC Converter (DIN-rail style, fixed range)

Our web site: http://www.jhtechnology.com/