72072-01
May 22, 2026

72072-01

72072-01 (Bently 7200 Series Probe / Preamplifier Assembly) 72072-01 is the standard model of the probe for the Bently Nevada 7200 series electromagnetic eddy current displacement / vibration sensor system. It is commonly used for non-contact monitoring of rotational machinery such as shaft vibration, shaft displacement, and temperature difference.

Description

I. Product Overview

Type: 7200 Series 14mm Eddy Current Probe (Standard Type)

Purpose: Compatible with 7200 Series Preamplifiers (such as 18745-0x), used for monitoring radial vibration, axial displacement, temperature difference, and eccentricity of rotating shafts in steam turbines, compressors, generators, etc.

Features: Non-contact, high linearity, high resolution, long-term stability, suitable for industrial harsh environments.

II. Core Parameters (72072-01)

Probe Diameter: 14mm

Linear Range: 2.54mm (100mil)

Sensitivity: 7.87mV/μm (200mV/mil)

Operating Temperature: -51℃ ~ +100℃

Cable Length: Standard 5m/9m (Customizable)

Output Signal: Negative DC Voltage (The smaller the gap, the more negative the voltage)

Compatible Preamplifier: 18745-03/04 (7200 Series)

III. Model Interpretation (72072-01)

72072: Basic model of 7200 Series 14mm probe

-01: Standard Length / Standard Thread / Standard Shell Version (Not for High Temperature / Not Extended)

IV. Installation Tips

Installation Gap: 1.27mm (50mil), corresponding to output approximately **-10VDC**.

Cable Routing: Away from power cables (≥300mm), minimum bending radius 25.4mm.

Torque: Locking nut 2.3–2.8N·m, avoid probe rotating with the shaft.

V. Compatibility and Alternatives

Complete System: 72072-01 (Probe) + Extension Cable + 18745-0x (Preamplifier).

Alternative Series: 3300XL 14mm (Upgraded Model, Good Compatibility)


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