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Bently Nevada 18745-04 7200 Series 5mm/8mm Proximitor Sensor
Purchase authentic Bently Nevada 18745-04 7200 Series 5mm/8mm Proximitor Sensors. Brand New in original factory packaging with Original Stock and Global Shipping.
Description
The Bently Nevada 18745-04, also cataloged as the 18745 Proximity Sensors, operates as a dedicated hardware component for non-contact shaft position and dynamic vibration measurements within 7200 Series proximity transducer systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 18745-04 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | 0.24 kg |
| Dimensions | 8 x 2.8 x 6 cm (Shipping dimensions) |
| Operating Temp | -35 deg C to +65 deg C |
| Power Consumption | Powered via -18 VDC to -24 VDC supply loop |
| Product Type | Proximity Sensors |
| System Type | 2-Wire, DC Powered |
| Scale Factor (Sensitivity) | 200 mV/mil (7.87 V/mm) |
| Linear Range | 80 mils (2.0 mm) |
| Frequency Response | 0 Hz (DC) to 10 kHz |
| System Length Configuration | 9.0 meters (29.5 feet) combined probe and extension cable |
| Probe Compatibility | 5 mm and 8 mm 7200 Series proximity probes |
| Storage Temperature | -50 deg C to +120 deg C |
Eddy-Current Probe Scaling and Gap Voltage Validation
The Bently Nevada 18745-04 conditions high-frequency RF signals generated by attached 5 mm or 8 mm proximity probes into linear DC voltage outputs. Calibrated to standard eddy-current probe scaling at 200 mV/mil (7.87 V/mm), the sensor delivers linear displacement output across its 80 mil (2.0 mm) range. During installation and routine maintenance, technicians measure DC output voltage to perform gap voltage validation, adjusting mechanical probe insertion until reaching target -10 VDC gap voltage bias levels corresponding to the linear range midpoint.
Frequently Asked Questions
Q: What system length must be maintained for the probe and extension cable when using this sensor?
A: The 18745-04 requires a total combined probe and extension cable length of 9.0 meters (29.5 feet) to maintain calibrated scale factor accuracy and voltage output linearity.
Q: Which monitoring platforms accept direct analog input signals from the 18745-04 Proximitor Sensor?
A: The sensor provides raw voltage signals compatible with Bently Nevada 3300 and 9000 machinery monitoring system racks.
Field Installation Guidelines
- First, mount the Proximitor sensor chassis inside a protective, weatherproof junction box or local instrument panel using appropriate fasteners.
- Next, connect the 9.0-meter combined probe and extension cable assembly to the Proximitor coaxial input connector, taking care not to contaminate the coaxial junction.
- Additionally, connect the power and signal field wiring (-24 VDC and signal out) to the screw terminal block, ensuring single-point shield grounding at the monitoring rack.
- Finally, adjust probe position relative to the target surface while monitoring output voltage until the multimeter reads target -10 VDC gap voltage.
Additional information
| Weight | 0.24 kg |
|---|---|
| Dimensions | 80 × 28 × 60 mm |
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