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Sensonics - Model Sentry G3 -Universal Machinery Protection Monitor
The Sentry G3 Machinery Protection Monitor is a high performance signal conditioning unit; providing a universal platform for the interfacing of various sensor types in compliance with the API 670 standard. Each of the four channels can be independently programmed to provide continuous monitoring and protection facilities across a broad spectrum of measurement regimes (including vibration, expansion, temperature, speed, etc). Utilising the latest DSP technology, once a channel is set up and running, the resulting alarm relay and analogue output facilities are independent from the remaining module functionality, resulting in a scalable high integrity configuration.
The module is provided with an intuitive colour LCD display and drive facility to provide immediate viewing and access to the machine parameters. Several modes of display are available including bar graph, FFT and an alarm historian.
The module provides the necessary power source for the selected transducer, providing for 2 (ICP type) or 3 – wire accelerometer variants, ± 24V proximity probe systems, LVDTs and a range of speed & temperature sensors.
Each transducer signal is buffered and available via the front panel analogue connection arrangement and a USB interface is provided for programming of the unit and storage of channel history and settings.
The unit is designed for mounting in a custom 19 inch rack assembly which also contains a dual redundant power supply option. The G3 system offers excellent channel density with up to 24 measurement channels in a 3U format.
Each channel can provide independent analogue outputs of current and voltage for DCS connection in addition to an alarm relay. Further alarm relay expansion is possible through connection to digital outputs at the rear of the module.
Machine Measurement Modes
- Absolute and Relative Vibration
- Displacement and Thrust Position
- Speed, Phase and Reverse Rotation
- Differential and Casing Expansion
- Rod Drop
- Temperature
Turbine Specialist Measurement Modes
- Shaft Eccentricity
- Differential Ramp Expansion
- Rotor / Stator Air Gap
- Overspeed
Flexible Configuration
- LPF, HPF, Tracking and Notch Filters
- Programmable Warning and Danger Alarms with Relay Logic
- Cross-Channel Voting
- Harmonic and Phase Analysis
- Programmable Transducer Supply
- Scaleable Module Hardware with plug in DSP card, up to four channels
- Dual Redundant Power Supply
- USB Programmable
- Dual Redundant Modbus RS485
- Park and Calibration modes