


Product Description
Product Details
- Manufacturer: Bently Nevada
- Series: 3500/25
- Model/Part Number: 3500/25-02-01-00
- Model Type: Keyphasor Module I/O Module
Description
The 3500/25 Enhanced Keyphasor Module is a half-height, two-channel module designed to provide Keyphasor signals to the monitor modules within a 3500 rack system. This module receives input signals from proximity probes or magnetic pickups and converts them to digital Keyphasor signals, which indicate the alignment of the Keyphasor mark on the shaft with the Keyphasor transducer.
The 3500 Machinery Protection System supports up to four Keyphasor signals in a standard configuration and up to eight Keyphasor signals in a paired configuration.
Specifications
Inputs
- Power Consumption: 3.2 watts (typical)
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Signal Input:
- Accepts up to two transducer signals per module, from proximity probes or magnetic pickups.
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Signal Range:
- Non-Isolated I/O modules: +0.8V to -21.0V
- Isolated I/O modules: +5V to -11V
- Exceeding signal ranges are internally limited by the module.
- Passive magnetic pickups require a shaft rotational speed greater than 200 rpm (3.3 Hz).
- Input Impedance: 21.8 kΩ minimum
Environmental Limits
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Operating Temperature:
- -30°C to +65°C (-22°F to +150°F) when used with I/O modules other than the Internal Barrier version.
- 0°C to +65°C (32°F to +150°F) when used with Keyphasor Internal Barrier I/O Module (Internal Termination).
- Storage Temperature: -40°C to +85°C (-40°F to +185°F)
- Humidity: 95%, non-condensing
Physical Specifications
- Dimensions (H x W x D): 241.3 mm x 24.4 mm x 103.1 mm (9.50 in x 0.96 in x 4.06 in)
- Weight: 0.46 kg (1.01 lbs)
Rack Space Requirement
- I/O Modules: 1 full-height rear slot
Ordering Information
The part number format is 3500/25-AA-BB-CC, with the following options:
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A: Number of Channels
- 01: Single half-height 2-channel Keyphasor card (2 channels)
- 02: Two half-height 2-channel Keyphasor cards (4 channels)
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B: Type of I/O Module
- 01: I/O module with Internal Terminations
- 02: I/O module with External Terminations
- 03: Internal Barrier I/O with Internal Terminations
- 04: Isolated I/O module with Internal Terminations (designed for use with magnetic pickups)
- 05: Isolated I/O module with External Terminations (designed for use with magnetic pickups)
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C: Agency Approval Option
- 00: Not required
- 01: cNRTLus (Class 1, Div 2)
- 02: ATEX/IECEx/CSA (Class 1, Zone 2)