3500/45-01-00 Position Monitor
Bently Nevada 3500/45 is a high-performance position monitor for critical machinery. It accepts 1 to 4 signal inputs and provides precise thrust, differential expansion, case expansion, and valve position measurements. This module is ideal for industrial automation, turbine control, and compressor monitoring.
Part Number: 3500/45-01-00 | Model: 3500/45 Position Monitor | Brand: Bently Nevada
Condition: New & Original in Factory Packing | Warranty: 12 Months
Technical Specifications
| Inputs | 1 to 4 signal inputs (Proximitor, RPT, DC LVDT, AC LVDT, Rotary Pot) |
| Power Consumption | 7.7 W (Position I/O) / 8.5 W (AC LVDT) / 5.6 W (Rotary Pot) |
| Input Impedance | 1 MΩ (DC LVDT) / 10 kΩ (Proximitor/RPT) / 137 kΩ (AC LVDT) / 200 kΩ (Rotary Pot) |
| Sensitivity (Thrust) | 3.94 mV/μm or 7.87 mV/μm |
| Differential Expansion | 0.394 / 0.787 mV/μm |
| Ramp Diff. Expansion | 0.394 / 0.787 / 3.937 / 7.874 V/mm |
| DC LVDT Case Expansion | 0.05 / 0.08 / 0.10 / 0.18 / 0.20 / 0.22 V/mm |
| AC LVDT Case Expansion | 28.74 / 15.35 / 9.45 mV/V/mm |
| Rotary Pot Valve Position | 41 mV/degree rotation |
| RPT Valve Position | 140 / 70 / 50 mV/deg rotation |
| Recorder Output | 4 to 20 mA, 0-600 Ω load, 0.3662 µA/bit resolution |
| Accuracy | ±0.33% of full-scale (typical), ±1% max |
| Frequency Response | Direct filter -3 dB at 1.2 Hz; Gap filter -3 dB at 0.41 Hz |
| Operating Temperature | -30°C to +65°C (-22°F to +150°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Humidity | 95% non-condensing |
| Dimensions (HxWxD) | 241.3 x 24.4 x 241.8 mm (9.50 x 0.96 x 9.52 in) |
| Weight | 0.91 kg (2.0 lb) |
Key Features & Diagnostics
- High Accuracy: ±0.33% full-scale typical, ±1% max. Provides reliable measurements for thrust, expansion, and valve position.
- Wide Input Flexibility: Accepts Proximitor, RPT, DC/AC LVDT, and Rotary Potentiometer inputs. Covers diverse sensor types.
- Robust Environmental Tolerance: Operates from -30°C to +65°C, 95% humidity. Suitable for harsh industrial environments.
- Built-in Diagnostics: Front panel OK, TX/RX, and Bypass LEDs indicate module status and communication. Recorder outputs are short-circuit protected.
- Frequency Response: Direct filter -3 dB at 1.2 Hz, Gap filter -3 dB at 0.41 Hz. Captures slow dynamic changes effectively.
- Transducer Power Supply: Provides -24 Vdc (Proximitor/RPT), +15 Vdc (DC LVDT), 2.3Vrms 3400Hz (AC LVDT), and -12.38 Vdc (Rotary Pot).
Installation & Maintenance
- Mounts directly into 3500 rack. Main board dimensions: 241.3 x 24.4 x 241.8 mm.
- Requires 3500/20 RIM Firmware rev. G and Configuration Software 2.41 or later.
- For RPT Valve Position, use Configuration Software 3.00 or greater.
- Recorder outputs are 4-20 mA, load 0-600 Ω, update rate ≤100 ms.
- Short circuits on recorder outputs do not affect monitor operation.
- All connectors are internal terminations; no external wiring required.
Compatibility & Certifications
- Compatible with 3500 Series Rack and all standard Bently Nevada transducers.
- Firmware requirements: RIM rev. G, Config Software 2.41, Data Acquisition 2.20, Operator Display 1.20, 3500/93 DIM 135799-01 rev. G.
- Agency Approval: None (option 00). Contact for custom certification.
- Factory warranty: 12 months from date of shipment.
Package Contents
- 1 x 3500/45-01-00 Position Monitor (Main Board)
- Factory packing with anti-static protection
- Installation guide (digital download)
- Warranty card (12 months)
Typical Applications
- Steam and Gas Turbines – thrust position, case expansion monitoring.
- Compressors – differential expansion and valve position control.
- Pumps and Fans – ramp differential expansion for start-up protection.
- Hydroelectric Generators – DC LVDT case expansion measurement.
- Valve Actuators – rotary potentiometer or RPT position feedback.
Diagnostic Capabilities
- Real-time OK LED for module health status.
- TX/RX LED indicates communication with rack modules.
- Bypass LED shows when monitor is in bypass mode.
- Recorder outputs provide proportional 4-20 mA signals for SCADA.
- Short-circuit protection on all output channels.
FAQ
- Q: Can I use this with AC LVDT sensors?
Yes. AC LVDT I/O module version supports 2.3Vrms 3400Hz excitation. - Q: What firmware is required?
Minimum RIM rev. G and Configuration Software 2.41. For RPT, use 3.00 or higher. - Q: Is the recorder output isolated?
No, but short circuits do not affect monitor operation. - Q: What is the update rate?
Recorder outputs update every 100 ms or less. - Q: Can I use this for valve position with RPT?
Yes, select 140/70/50 mV/deg sensitivity and use Config Software 3.00+.
Shipping & Logistics
- We ship worldwide via FedEx, UPS, or DHL (express service).
- Tracking number provided within 24 hours of shipment.
- All packages are insured and securely packed.
Why Buy From Oiltech Controls?
- 15+ years in industrial automation spare parts.
- Global shipment support – fast and reliable.
- Tested surplus/refurbished options available.
- 12-month warranty on all products.
- Technical verification before shipment.
- Expert support for obsolete control systems.
Contact: info@oiltechcontrols.com |
+86 158 8020 0923 (WhatsApp)
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