330850-51-CN | Bently Nevada 3300 XL 25 mm Proximitor Sensor

Product Overview

The Bently Nevada 330850-51-CN is a 3300 XL 25 mm Proximitor Sensor specifically configured for the Chinese market with China-specific compliance certifications (CN suffix). It combines 5.0 meters (16.4 ft) system length, DIN rail mounting, and local regulatory approvals, making it the standard choice for power plants, petrochemical facilities, and heavy industry machinery protection systems operating under Chinese national standards.

Key Specifications

• Product Family: 3300 XL 25 mm Proximity Transducer System
• System Length: 5.0 meters (16.4 feet)
• Mounting Option: DIN rail mount (35 mm top-hat rail)
• Agency Approval: China-specific compliance (CN suffix)
• Probe Input: One noncontacting 3300 XL 25 mm proximity probe + extension cable
• Linear Range: 12.7 mm (500 mils)
• Average Scale Factor: 0.787 V/mm (20 mV/mil) ±5%
• Frequency Response: 0 Hz to 10 kHz (±1 dB)
• Power Supply: -17.5 Vdc to -26 Vdc (without barriers), max 12 mA; -23 Vdc to -26 Vdc (with barriers)
• Supply Sensitivity: < 2 mV output change per 1 V input change
• Output Resistance: 50 Ω
• Target Material: Factory calibrated for AISI 4140 steel
• Housing Material: A380 aluminum alloy
• Operating Temperature: -35°C to +85°C (-31°F to +185°F)
• Storage Temperature: -51°C to +100°C (-60°F to +212°F)
• Weight: Approx. 0.22 kg
• Dimensions: 8.8 × 6.0 × 6.5 cm

Compatibility & Applications

Designed for compliance with Chinese industrial safety and metrology regulations. Widely used in Chinese thermal power plants (coal, gas), nuclear power turbine monitoring, Sinopec/CNOPC refinery compressor protection, steel mill rolling mill vibration monitoring, and cement plant kiln drive condition assessment.

FAQ

• Q: What does the "-CN" suffix indicate? A> The "-CN" suffix indicates China-specific agency approval and compliance labeling, ensuring the product meets Chinese national standards for industrial equipment import and installation.
• Q: Can I use the -CN variant outside China? A> While technically identical in performance, the -CN variant's certifications are China-specific. For international projects, select the "-05" multi-approval variant (CSA/ATEX/IECEx).
• Q: Is the -CN variant physically different from -00 or -05? A> The hardware and performance are identical. Differences are limited to certification documentation, labeling, and factory quality testing per Chinese regulations.
• Q: What is the warranty for China-market units? A> Standard Bently Nevada warranty applies. Verify with your local GE/Bently Nevada China distributor for any region-specific warranty terms.

Installation Guide

1. Verify the proximitor carries the correct China compliance labeling before installation.
2. Mount on 35 mm DIN rail in a grounded metallic enclosure.
3. Follow Chinese electrical installation standards (GB standards) for cable routing and grounding.
4. Connect probe, extension cable, power, and output as per standard 3300 XL practices.
5. Document the installation for Chinese regulatory inspection if required.

Selection Tips

• Select 330850-51-CN for Chinese market projects requiring 5.0 m system length and DIN rail mounting.
• For panel mount with China approval, check availability of 330850-50-CN (if offered).
• For export projects requiring international approvals, use 330850-51-05 instead.
• Always verify with your local Bently Nevada China representative for the latest compliance requirements.