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The EPRO PR9268/301-100 is an electric sensor from Emerson. It measures absolute vibration in critical turbomachinery applications.

The sensor measures casing vibration in applications such as steam, gas and hydro turbines, compressors, pumps and fans. It offers multiple orientations including omnidirectional, vertical and horizontal.

The sensor is self-powered and has an operating temperature range of -20 to +100°C (-4 to 212°F) for some models. It also offers IP55 and IP65 ratings. The sensor and 1M cable weigh approximately 200 grams.

Specifications:

Sensitivity: 28.5 mV/mm/s (723.9 mV/in/s) at 80 Hz/20°C/100 kOhm.

Measuring range: ± 1,500µm (59,055 µin).

Frequency range: 4 to 1,000 Hz (240 to 60,000 cpm).

Operating temperature: -20 to 100°C (-4 to 180°F).

Humidity: 0 to 100% non-condensing.

Features:

Measurement range: Capable of detecting a wide range of speeds to suit a variety of application needs.

Frequency response: Provides high bandwidth to support speed measurements from low to high frequencies.

Sensitivity: High sensitivity design ensures accurate capture of small speed changes.

Environmental resistance: Has good resistance to vibration, shock and high temperature, suitable for harsh environments.

Output signal: Typically provides a stable electrical signal output (such as analog voltage or current) compatible with data acquisition systems.

Mounting method: Compact design, easy to install in space-constrained equipment.

Long-term stability: Precision manufactured to ensure long-term reliable and accurate performance.