Overview
Specification
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Series | 3300 XL |
| Model Number | 330850‑50‑05 |
| Product Type | Proximity Transducer / Proximitor Sensor |
| Measurement Technology | Eddy current, non‑contact |
| Compatible Probe Size | 25 mm proximity probes |
| Typical Linear Range | 12.7 mm (500 mils) system range |
| Linear Range Start | ~0.63 mm from target |
| Typical Output Scale Factor | 0.787 V/mm (20 mV/mil) nominal |
| Deviation from Straight Line (DSL) | < ±0.31 mm (±12 mils) typical |
| Frequency Response | Up to ~2.7 kHz typical |
| Power Supply | -17.5 Vdc to -26 Vdc |
| Power Consumption | ≤ 12 mA |
| Output Resistance | 50 Ω |
| Recommended Cable Type | Shielded triad (0.2–1.5 mm²) |
| Maximum Cable Length | 305 m (1000 ft) |
| Target Size | ≥ 61 mm (2.4 in) diameter flat steel target |
| Operating Temp – Sensor | -51°C to +100°C (-60°F to +212°F) |
| Operating Temp – Probe/Cable | -35°C to +120°C (-31°F to +248°F) |
| Certifications | CE, FCC, RoHS; hazardous area approvals may be available |
| Environmental Protection | Industrial vibration and moisture tolerance |
| Mounting | Panel or DIN‑rail mount |
FAQ
A1: It provides a wider linear range (about 12.7 mm) for differential expansion and large‑shaft monitoring.Q2: What output signal does the 330850‑50‑05 sensor provide?
A2: It delivers a nominal 0.787 V/mm (20 mV/mil) proportional voltage output.
Q3: Is this sensor compatible with other Bently Nevada proximity systems?
A3: It is designed for the 3300 XL 25 mm system and replaces older 7200 25 mm and related DE integral systems without monitor changes.
Q4: How long can the sensor run with extension wiring?
A4: Field wiring up to 305 m (1000 ft) is supported, though frequency response may roll off at higher lengths.
Q5: Can this sensor handle harsh plant conditions?
A5: Yes, it tolerates industrial vibration, moisture, and RFI/EMI interference for robust performance.
Q6: What machinery commonly uses this sensor?
A6: Typical use cases include DE monitoring on steam turbines and vibration/deformation tracking in large rotating equipment.
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