Vibration Monitoring via Rack Mounted API 670 Compliant IRD8800 Machinery Protection System (MPS)
Casing, Shaft and End Winding Vibration | API670 Compliance | 5 Years Warranty
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Introduction
IRD Mechanalysis Limited has been a Condition Monitoring Solutions provider to the World since 1962. Also commonly referred to as 'IRD' - the Solutions range from Portable Instruments to Online Systems for Vibration, Temperature, Speed, Gap, Bearing and Turbine Monitoring. IRD provides API670 Compliant Rack Based Machinery Protection System IRD8800 that can do 24x7, 365 days Vibration Monitoring. The Salient features of this Monitoring System are:
- Live Value and Bargraph Display
- Dual Channel modules for Casing, Shaft and End Winding Vibration. No need of separate Phase reference (Keyphasor) card as each card has provision for 1 x Phase reference input apart from the 2 x Vibration Inputs
- Easy Programming using Push buttons on Keypad. Password Protection for security
- A large variety of Outputs ranging from 1:1 Buffered Output at front (via BNC) and back (via Terminals), 4-20 mA Galvanically Isolated Output, MODBUS RTU or MODBUS TCP Output and 2 sets of Alarm Relay Contacts and 2 Sets of Trip Relay contacts per channel
- Start-Up Protection that helps avoid False tripping at time of Machine Start-Up. Trip Bypass facility as Transducer Failure indication (Tx Fail)
- Compliance to API670 Edition 5 standards for Machinery Protection Systems (MPS)
Sensors used for Vibration Monitoring
Casing Vibration Sensors
We provide Casing Vibration Sensors with a variety of Pin Configurations, Form Factors and Outputs. The options range from Top Exit, Side Exit, 2 Pin Connector, 4 Pin Connector, Separate Cable, Integral Cable and more. We provide Casing Vibration Sensors in all forms:
- IEPE type Accelerometer - where the Voltage output of the Sensor is proportional to Vibration Acceleration and Sensitivity is reported in mV/g with 100 mV/g being the most common option
- IEPE type Velometer - where the Voltage output of the Sensor is proportional to Vibration Velocity and Sensitivity is reported in mV/mm/s with 4 mV/mm/s being the most common option
- Self Generating Velometer - where the Voltage Output of the Sensor is self generating (does not require external power) and Temperature response is superior and Sensitivity is 42.52 mV/mm/s
Shaft Vibration Sensors
We provide Non-Contact Eddy Current based Sensors for Relative Shaft Vibration Monitoring. These Sensors come in sets of Probe, Extension Cable and Driver that are tuned and calibrated for a defined system length - 5 meters or 9 meters. These typically have a 8mm tip dia and 7.87 mV/um (200 mV/mil) Sensitivity. The probe is not in contact to the rotating shaft and is held in place using a bracket that is bolted or welded to the support structure
Calibration and Quality Assurance
We take Quality seriously. We Calibrate and Test our systems thoroughly before dispatch to ensure full peace of mind for user at time of use. The steps we carry out for Calibration and Quality Assurance are:
- Thorough tracking of Raw Materials and Vendors and makes for parts and components used
- 100 hours Burn In test prior to Calibration and Functional checks
- 5 Point Calibration check using Simulated Signal as well as Real Signal
- Detailed Functional check covering each Function and Output



