Model 140 Remote In-Line DC Amplifier

Measurement Specialties, Inc. (NASDAQ: MEAS) has just released to production the Model 140 remote in-line DC amplifier. Designed to be used with bridge-type mV output transducers, the amplifier features five user-selectable gain settings with a gain accuracy of ±0.5% and a wide bandwidth to 100kHz. The Model 140 offers a unique auto-zero function (patent pending) that allows the operator to zero the transducer offset voltage to within ±1.5mV. This may be achieved remotely or by pressing the on-board push button at the user’s command, prior to the taking of data. This feature ensures a more accurate measurement as it removes any offset drift from the sensor.

The Model 140 operates from 5 through 30Vdc excitation and can attain a zero output of ±1.5mV after auto zero actuation. Weighing only 33 grams, this small device is contained in a rugged, anodized aluminum housing that is sealed against humidity and can operate from -20°C through +70°C. Combine this with reverse polarity protection and low noise, you have a remote in-line amplifier well suited for applications involving pressure/level indication, static acceleration testing, load monitoring and strain measurement.

Ease of installation is ensured as both the input and output are commonly-found Binder Connectors. For optional accessories, Measurement Specialties offers a cable assembly (379-XXX, 5x #30 AWG) and mating connector plug (AC-G04239). The “XXX” designates length in inches with standard cable length being 120 inches.

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