Bently Nevada 3500/42M-01-00 Proximitor Seismic Monitor 4-ch

📋 Product introduction

• 3500/42M‑01‑00 is a Bently Nevada Proximitor Seismic Monitor. Made in USA.
• Accepts up to 4 transducer signals: proximity, velocity or acceleration. Seismoprobe recommended; Prox/Accel/Velomitor supported (not recommended).
• Designed for critical machinery protection. Monitors radial vibration, thrust, differential expansion, eccentricity, acceleration, velocity, shaft absolute.
• Fits 3500 rack, hot‑swappable. I/O module type 01 (internal terminations).

⚙️ Technical specifications – core data

• Brand / model: Bently Nevada 3500/42M‑01‑00
• Inputs: 4 channels; impedance 10 kΩ (Proximitor / acceleration).
• Sensitivity (programmable):
  • Radial vibration: 3.94 / 7.87 mV/µm (100/200 mV/mil).
  • Thrust / eccentricity: same as above.
  • Differential expansion: 0.394 / 0.787 mV/µm (10/20 mV/mil).
  • REBAM: 40 / 80 mV/µm (1000/2000 mV/mil).
  • Accel: 10 mV/(m/s²) (100 mV/g).
  • Velocity: selectable 20 / 5.8 / 4 mV/(mm/s) pk.
• Frequency response (radial direct): programmable single‑pole –3 dB 4 Hz‑4 kHz or 1 Hz‑600 Hz.
• Accuracy: within ±0.33% FS typical (direct/gap/vector). Max ±1%.
• Buffered outputs: front BNC per channel, 550 Ω impedance, short‑circuit protected.
• Recorder outputs: 4‑20 mA proportional to full scale, 0‑600 Ω load, 0.3662 µA/bit resolution.
• Transducer power: –24 Vdc.
• Power consumption: 7.7 W typical.
• LEDs: OK, TX/RX, Bypass.
• Dimensions: 241.3 x 24.4 x 241.8 mm (9.5 x 0.96 x 9.52 in). Weight: 0.91 kg (2 lb).

🧩 Configuration & ordering breakdown

• 3500/42M – Proximitor Seismic Monitor main board
  • -01-00 :
    • 01 = I/O module with internal terminations (Prox/Seismic I/O).
    • 00 = no hazardous area approval.
  • Transducer type: Seismoprobe preferred; Prox/Accel/Velomitor possible but not recommended.

📊 Detailed performance & environmental

• Measurement ranges (full scale configurable): vibration, thrust, expansion, ecc., accel, velocity.
• Linearity: within ±0.33% typical, ±1% max (excluding filters).
• Resolution: recorder output 0.3662 µA/bit.
• Temperature range: specified at +25 °C; operation ambient 0°C to +65°C (typical rack).
• Environmental tolerance: designed for industrial control rooms. Immunity to radiated fields: with barriers add ±11% (Velomitor).
• Noise rejection: Not‑1X filter –34.9 dB min; 1X/2X vector filters –57.7 dB stopband.
• Filter quality: high‑pass 4‑pole (80 dB/decade), low‑pass 2‑pole (velocity) or 4‑pole (accel).

🔌 Installation, compatibility & maintenance

• Installation: fits 3500 rack, rear I/O module type 01 (internal terminations). Use only with Bently Nevada 3500 chassis.
• Wiring: internal terminations simplify field wiring. Buffered outputs at front.
• Compatibility: works with 3300/3500 series proximity, Velomitor, accelerometers (with proper I/O).
• Maintenance: front LEDs (OK, TX/RX, Bypass) for quick status. Module exchange without disturbing wiring.
• Certification: Hazardous area option 00 = none. Ordinary location. Meets CE requirements.

📦 Package & warranty

• Package includes: 1x 3500/42M‑01‑00 monitor module, 1x I/O module (internal terminations). No cables or transducers.
• Warranty: 12 months against defects in materials and workmanship.
• Shipping: via FedEx, UPS, DHL – worldwide express. Choose at checkout.

🏭 Typical applications & diagnostic power

• Applications: steam/gas turbines, compressors, pumps, fans, generators. Thrust, eccentricity, casing vibration.
• Diagnostics: monitors OK/bypass, transducer fault, gap/not‑ok filters. Vector filters (1X,2X) for balancing & analysis.
• Shaft absolute capability: combines proximity + velocity for absolute shaft motion.
• Buffered outputs allow external diagnostics (portable analyzers).

❓ FAQ – experience & selection guide

• Q: Can I use a Velomitor sensor with this monitor?
  A: Yes. Velomitor is supported (velocity mode). But Seismoprobe is recommended. With barriers, add ±11% accuracy under RF immunity.
• Q: What does I/O type “01” mean?
  A: 01 = Prox/Seismic I/O module with internal terminations. Accepts up to 4 transducers, includes screw terminals inside the rack.
• Q: How to choose between 100 mV/mil and 200 mV/mil sensitivity?
  A: Use 100 mV/mil for standard vibration ranges (0‑10 mils). Use 200 mV/mil for higher resolution on small amplitudes. Field‑selectable.
• Q: Can I monitor radial and thrust with one module?
  A: Yes. Each channel configurable independently. Mix transducer types (prox+velo).
• Q: What is delivery time?
  A: In stock. Shipped within 24h via FedEx/UPS/DHL. 12 months warranty included.

📞 Contact & inquiries

• 📧 sales@powergearx.com
• 📞 +86 18030005825 (WhatsApp)
• Industrial automation support – fast response.

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