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.

Designed for precise dynamic cylinder pressure monitoring, the Bently Nevada 165855-12-CN provides reliable measurement capabilities within reciprocating compressor diagnostic systems. This device translates mechanical pressure changes into highly accurate electrical signals, enabling real-world thermodynamic analysis and machinery protection. Equipped with integrated protective armor, it withstands the harsh operational environments typical of heavy industrial engine and compressor manifolds.
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model Series | 165855 Series |
| Full SKU | 165855-12-CN |
| Pressure Range Option (12) | 0 to 17 bar (0 to 250 psia) with armored cable |
| Agency Approval (CN) | Country-specific certifications |
| Full Scale Output | 10 +/- 0.3 Vdc |
| Zero Reference Output | 0.5 +/- 0.1 Vdc |
| Power Supply Input | 18 to 30 Vdc |
| Net Instrument Weight | 0.4 kg |
| Calculated Shipping Weight | 1.5 kg |
| Country of Origin | United States (USA) |
Alternative Models & Compatibility: The "12" range option (0 to 17 bar) is specifically designed for low-to-medium pressure industrial cylinders. If replacing a standard unarmored transducer, verify that structural clearance supports the slightly stiffer profile of the armored cable.
Application Pitfalls & Engineering Notes: Because pressure transients in reciprocating compressors can cause rapid thermal spikes, the sensor must be mounted in accordance with thermal-isolation specifications. Do not exceed the 17 bar threshold; transient spikes beyond the rated dynamic range may compromise zero-point stability.
Commissioning & Wiring Tips: Ensure the power supply is dedicated and free of high-frequency noise. Use high-quality shielding connected at the monitoring system side only to prevent ground loop currents from interfering with the 0.5 to 10 Vdc signal path.
CRITICAL SAFETY WARNING
Isolate, depressurize, and vent the cylinder before attempting transducer installation or replacement. Verify zero static line pressure within the chamber. Ensure all electrical power supplies to the associated monitoring loop are de-energized to prevent ignition risks in classified environments.
Inspect the mounting port and clean all thread paths to remove any carbon buildup or previous thread sealant residues.
Apply a thin layer of manufacturer-approved high-temperature thread lubricant, ensuring no lubricant blocks the sensor face or internal pathway.
Thread the transducer by hand to avoid cross-threading, then torque to the manufacturer specified limit using a calibrated wrench.
Secure the armored cabling to structural supports using soft-jaw clamps, avoiding tight bends and direct contact with high-vibration engine components.
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Returns & Warranty
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For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|