126648-02 Isolated Keyphasor I/O Module

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	126648-02
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 126648-01 Keyphasor I/O Module is a precision industrial automation module designed for Bently Nevada™ 3500 systems. This half-height, isolated I/O module accepts up to two transducer inputs from proximity probes or magnetic pickups, converting them into buffered Keyphasor signals for machinery monitoring. The 126648-01 Keyphasor I/O Module delivers front and rear coaxial outputs with a maximum output impedance of 504 Ω and supports -24 Vdc, 40 mA power per channel for Keyphasor transducers. Operating from -30°C to +65°C and storing safely up to -40°C to +85°C, the 126648-01 Keyphasor I/O Module handles speed/frequency signals from 1 to 1,200,000 cpm, maintaining accuracy across 0.017 Hz to 20 kHz. With 21.8 kΩ input impedance and 3.2 W typical power consumption, the module supports multiple configurations, including paired setups for primary and backup Keyphasor signals. Designed to isolate signals from control systems, the 126648-01 Keyphasor I/O Module ensures reliable shaft speed measurement and optional phase detection. Ideal for automation applications requiring precise shaft timing, this module integrates seamlessly with 3500 rack systems while providing enhanced signal processing and field-upgradeable firmware.

Applications

Measure Shaft Speed in Turbines
The 126648-01 Keyphasor I/O Module accepts two transducer signals from proximity probes or magnetic pickups, converting them into buffered Keyphasor outputs. It supports speed/frequency signals from 1 to 1,200,000 cpm and provides -24 Vdc, 40 mA per channel, enabling accurate shaft speed detection for turbines in industrial automation systems.

Provide Primary and Backup Keyphasor Signals
Using paired configurations, the 126648-01 Keyphasor I/O Module can deliver both primary and secondary signals to monitor modules. Its front and rear coaxial outputs with 504 Ω maximum impedance ensure signal delivery across multiple devices in a 3500 rack system.

Measure Phase Timing in Rotating Machinery
The 126648-01 Keyphasor I/O Module allows optional phase measurement from multi-event-per-turn inputs. With input impedance of 21.8 kΩ and 3.2 W power consumption, it provides accurate phase shift data, suitable for applications requiring precise timing of rotating components.

Specifications

Competitive Advantage

Support High-Speed Signal Processing
The 126648-01 Keyphasor I/O Module handles input frequencies from 0.017 Hz to 20 kHz and outputs up to 1667 Hz, ensuring accurate conversion of transducer signals in fast rotating machinery.

Provide Flexible Rack Configurations
With half-height main slot installation and full-height I/O slots, the 126648-01 Keyphasor I/O Module supports multiple configurations, including paired and non-paired setups, to deliver primary and backup Keyphasor signals in the same rack.

Enable Field Firmware Upgrades
The 126648-01 Keyphasor I/O Module includes field-upgradeable firmware, allowing technicians to update signal processing features without removing the module from the 3500 rack.

Operate in Extreme Temperature Ranges
The 126648-01 Keyphasor I/O Module functions from -30°C to +65°C and stores safely up to -40°C to +85°C, allowing installation in harsh industrial environments without affecting signal output.