125800-01 Keyphasor I/O Module

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	125800-01
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

Nevada 3500 racks, providing Keyphasor signals from proximity probes or magnetic pickups to monitor modules. 125800-01 converts raw input signals (+0.8 V to -21 V non-isolated or +5 V to -11 V isolated) into digital Keyphasor outputs, with two buffered outputs at the front (coaxial) and two at the rear (Euro Style). Typical power consumption of 125800-01 is 3.2 W, with transducer power supply of -24 Vdc at 40 mA per channel. Operating temperature ranges from -30°C to +65°C, storage -40°C to +85°C, with 95% non-condensing humidity. Speed/frequency input ranges from 1 to 1,200,000 cpm, with output 1–99,999 cpm, and accuracy up to ±1% of cpm for high-speed signals. Front panel LEDs indicate OK and TX/RX communication with the RIM. 125800-01 supports half-height front slot installation with full-height rear I/O modules and enables both single and paired Keyphasor configurations for normal or TMR applications, providing critical shaft speed and phase signals to automation and machinery protection systems.

Applications

Measure Turbine Shaft Speed in Automation Systems

125800-01 receives inputs from proximity probes or magnetic pickups, converting signals into digital Keyphasor outputs for shaft speed calculation. Speed ranges up to 1,200,000 cpm allow 125800-01 to monitor high-speed turbines.

Supply Phase Signals to Monitor Modules

Buffered outputs on 125800-01 provide front and rear phase-aligned Keyphasor signals. Accuracy of ±1 cpm at low frequencies ensures reliable phase detection for event triggers in machinery monitoring.

Support Triple Modular Redundant Configurations

In TMR systems, 125800-01 operates in parallel with a second module to generate primary and secondary Keyphasor signals. This continuous comparison flags channels deviating from a configured percentage, enhancing fault detection in automation applications.

Transmit Dynamic Vibration Data for Predictive Maintenance

125800-01 sends high-frequency vibration data (up to 1,200,000 cpm input) to data acquisition systems, enabling automated analytics. LEDs indicate OK operation and TX/RX communication with RIM for real-time verification.

Specifications

Competitive Advantage

Drive Multiple Monitoring Modules with Buffered Outputs

125800-01 provides two front and two rear buffered outputs per module, supporting multiple devices simultaneously without signal degradation, ensuring accurate automation measurements.

Monitor High-Speed Machinery Accurately

Input 1–1,200,000 cpm and output 1–99,999 cpm, with ±1% cpm accuracy, allow 125800-01 to measure turbines, compressors, and generators, providing actionable automation data.

Operate in Industrial Environments with Harsh Conditions

125800-01 functions from -30°C to +65°C with 95% non-condensing humidity, supporting installation in control cabinets near high-speed rotating machinery.

Enable Flexible Rack Configurations

Half-height front slot and full-height rear I/O support allow 125800-01 to be installed in single, paired, or TMR Keyphasor setups. Engineers can deploy 125800-01 in various automation configurations for both primary and backup signals.

Low Power Consumption

With 3.2 W typical power usage and -24 Vdc transducer supply at 40 mA per channel, 125800-01 minimizes energy requirements while driving multiple Keyphasor channels for industrial monitoring.