3500/22-01-01-01 2-channel speed & acceleration monitoring module

The BENTLY 3500/22-01-01-01 is a 2-channel speed & acceleration monitoring module belonging to Bently Nevada’s 3500 Series Rotating Machinery Protection & Monitoring System. It is specifically engineered to track key rotational parameters (speed, rotor acceleration, rotation direction) of critical rotating equipment, providing real-time data and safety alarms to prevent overspeed, under-speed, or abnormal acceleration-related failures. The multi-segment model number (3500/22-01-01-01) indicates a standardized configuration optimized for industrial scenarios requiring basic speed monitoring with dual-channel redundancy. Below is its comprehensive detailed information:

I. Core Technical Parameters

Category	Specific Specifications
Basic Identification	- Model: 3500/22-01-01-01 (2-Channel Speed & Acceleration Monitor)- Applicable System: Bently 3500 Series (compatible with 3500/10 single-frame and 3500/20 multi-frame racks)- Channel Quantity: 2 independent monitoring channels
Speed Measurement	- Measurement Range: 0.1 rpm to 99,999 rpm (configurable via software)- Accuracy:- ±0.1 rpm (for speeds < 100 rpm)- ±0.01% of reading (for speeds ≥ 100 rpm)- Resolution: 0.01 rpm- Input Events per Revolution: 1 to 255 (programmable, matching gear teeth or shaft markers)
Acceleration Measurement	- Measurement Range: -10,000 rpm/s to +10,000 rpm/s (deceleration to acceleration)- Accuracy: ±0.5% of full scale- Update Rate: 50 ms/channel (real-time tracking of rapid speed changes)
Input Compatibility	- Sensor Type: Proximity probes (e.g., Bently 3300XL) or magnetic pickups- Input Signal Range: +10 V to -24 V DC- Input Impedance: 20 kΩ (standard), 40 kΩ (TMR option)- Minimum Input Frequency: 0.0167 Hz (for proximity probes), 3.3 Hz (for magnetic pickups)
Output Configuration	- Relay Outputs: 4 Form C (SPDT) relays (2 per channel, configurable for Warning/Danger/Acceleration Alarm)- Analog Outputs: 2 channels of 4-20 mA DC (1 per channel, proportional to speed/acceleration)- Buffered Sensor Outputs: 2 channels (1:1 signal replication for external data logging), impedance 550 Ω
Power & Environment	- Power Supply: +24 V DC (from 3500 rack backplane), typical current 0.8 A- Power Consumption: 9.6 W (max)- Operating Temperature: -40°C ~ +70°C (suitable for turbine rooms, refineries)- Storage Temperature: -55°C ~ +85°C- Relative Humidity: 5% ~ 95% (non-condensing)- Protection Rating: IP20 (dust-proof, cabinet-mounted)

II. Core Functional Features

1. Dual-Channel Redundancy & Multi-Parameter Monitoring

Independent 2-Channel Design: Each channel operates independently (separate signal processing circuits) to support redundancy configurations (e.g., 1-out-of-2 or 2-out-of-2 voting). This ensures no single-point failure compromises speed monitoring—critical for safety-critical equipment like turbines.
Integrated Parameter Tracking: Simultaneously measures speed, rotor acceleration, and rotation direction. For example, it can detect sudden acceleration (indicating load loss in turbines) or reverse rotation (preventing damage from incorrect startup sequences).
The company has multiple main brands, and if you have other brand requirements, you can also send them to customer service for inquiry.
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Bently

3500/22-01-01-01

Product Details

3500/22-01-01-01 2-channel speed & acceleration monitoring module

I. Core Technical Parameters

II. Core Functional Features

1. Dual-Channel Redundancy & Multi-Parameter Monitoring

3500/72M

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