What Is SCADA? Supervisory Control Without Replacing the PLC
SCADA sits above PLCs and RTUs: it acquires field data, alarms operators, and issues supervisory commands across plants and remote assets—without replacing local deterministic control.

Engineered for high-precision industrial shaft vibration, position, and speed measurements, the Bently Nevada 330180-12-CN is a high-performance signal conditioner belonging to the industry-standard 3300 XL Proximitor Sensor series. This unit processes the radio frequency (RF) signal from a compatible proximity probe to generate a linear analog voltage output directly proportional to the distance between the probe tip and the observed target area. Specially calibrated for a 1.0-meter system length, this model features country-specific agency approvals (CN designation) and is built with a rugged A308 aluminum housing to withstand extreme environmental conditions in critical machinery protection applications.
| Parameter | Value / Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model Number | 330180-12-CN |
| Product Series | 3300 XL Proximitor Sensor |
| Total System Length | 1.0 meter (3.3 feet) |
| Mounting Option | No mounting hardware included |
| Agency Approvals | CN (Country-specific Ex/hazardous area approvals) |
| Compatible Probes | 3300-series 5 mm, 3300 8 mm, and 3300 XL 8 mm proximity probes |
| Housing Material | A308 Aluminum |
| Operating Temperature | -51 degC to +100 degC (-60 degF to +212 degF) |
| Storage Temperature | -51 degC to +105 degC (-60 degF to +221 degF) |
| Humidity Resistance | < 3% Average Scale Factor (ASF) change under 93% humidity per IEC 68-2-3 (up to 56 days) |
| Net Weight | 0.246 kg |
| Shipping Weight | 1.300 kg |
The 330180-12-CN Proximitor sensor requires a precise matches of probe and extension cable physical lengths to prevent massive calibration offsets. It must only be paired with a combined cable length (probe plus extension) of exactly 1.0 meter. Coupling a 1.0-meter Proximitor with a 5.0-meter or 9.0-meter probe/cable assembly will severely shift the voltage-to-distance slope, resulting in erroneous vibration readings on the monitoring system.
When designing localized field enclosures, avoid mounting the Proximitor adjacent to high-voltage lines or power switchgear. Additionally, physical separation of at least 25.4 mm (1.0 inch) between individual Proximitor bodies is recommended to avoid cross-talk generated by the high-frequency RF carrier signals used to drive the non-contacting probes.
Ensure the outer coaxial terminal connection on the Proximitor side is fully insulated using the manufacturer-provided connector boots. Any accidental contact between the coaxial shield and structural earth ground will introduce a secondary ground loop, manifesting as raw 50/60 Hz line-frequency noise on the output signal (often misdiagnosed as rotor imbalance or electrical runout).
Verify that all system power sources are completely isolated before mounting the Proximitor. Live wiring can damage sensitive internal RF oscillator components or result in hazardous discharges within explosive environments. Ensure compliance with specific national standards designated by the "CN" suffix for hazardous area installations.
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| Country of origin |
United States
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