Product details
Product Overview
- Brand: :Bently Nevada
- Model: 3500/25-01-01-02
- Series: 3500 System
- Type: Enhanced Keyphasor Module
- Description: Speed and phase reference monitoring module
- Supports proximity probes and magnetic pickups
- Provides stable speed signal tracking
- Used in rotating machinery systems
Configuration Breakdown
- 3500/25-01-01-02
- ↳ 25 = Keyphasor module series
- ↳ 01 = 2-channel half-height module
- ↳ Supports dual input signals
- ↳ 01 = Internal termination I/O module
- ↳ 02 = ATEX / IECEx / CSA Zone 2 approval
Core Technical Data
- Channels: 2 inputs
- Power Consumption: 3.2 W typical
- Input Impedance: ≥21.8 kΩ
- Input Signal Range: up to -21 V
- Sensor Power: -24 Vdc
- Output Impedance: 504 Ω max
Speed & Frequency Performance
- Input Range: 1 to 1,200,000 cpm
- Frequency Range: up to 20 kHz
- Output Range: up to 99,999 cpm
- Supports multiple pulses per revolution
Measurement Accuracy
- Low speed: ±1 cpm accuracy
- Medium speed: ±8 cpm accuracy
- High speed: ±1% of reading
- Stable at standard temperature
Signal Conditioning
- Auto threshold for easy setup
- Manual threshold adjustable 0 to -20 V
- Hysteresis adjustable 0.2 to 2.5 V
- Reliable trigger detection
Output Features
- Front and rear buffered outputs
- Coaxial and Euro connectors available
- Short circuit protection included
- Stable signal output for monitoring
Environmental Limits
- Operating Temp: -30°C to +65°C
- Storage Temp: -40°C to +85°C
- Humidity: 95% non-condensing
Physical Design
- Compact half-height module
- Size: 119.9 × 24.4 × 256.5 mm
- Fits standard 3500 rack
- Easy installation and wiring
System Compatibility
- Works with 3500/25 system
- Supports proximity and magnetic sensors
- Integrates with rack interface module
- Designed for rotating equipment monitoring
Installation Notes
- Install into rack slot correctly
- Use correct I/O module type
- Check signal polarity before wiring
- Avoid mixing termination types
Logistics & Warranty
- Warranty: 12 months
- Shipping: FedEx, UPS, DHL
- Safe industrial packaging
- Fast global delivery
FAQ
- What is the main function of this module?
- It provides speed and phase reference signals.
- Can it detect very low speed?
- Yes. It supports signals from very low frequency.
- How to choose between auto and manual threshold?
- Use auto for simple setup. Use manual for special signals.
- What should be checked before installation?
- Check sensor type, wiring, and signal range.
- Is this module easy to maintain?
- Yes. It has LED indicators and stable design.
Contact Information
- Email: sales@powergearx.com
- WhatsApp: +86 18030005825
Original Source: https://www.powergearx.com/
Copyright © 2026 Powergear X Automation Limited. All rights reserved.












Jason Parker –
We ordered this enhanced Keyphasor module for a turbine speed and phase reference application. The product arrived brand new and in excellent condition. Installation was quick, and the signal output has been extremely stable, even under varying load conditions. Accurate phase reference is critical for our vibration analysis, and this module performs exactly as expected. The seller shipped quickly and communicated clearly throughout the process. A reliable, professional purchase experience and a high-quality module that meets industrial standards.