PMT
Physical Measurement Technologies, Inc. P.O. Box 400
4 Ling Street Marlborough, NH 03455 USA
Website: www.pmtvib.com
The Absolute Measure of Elevators and Escalators
EVA-625
The World’s Standard of Measurement . . . Elevator Ride Quality, Vibration & Sound
Ride Quality Measurement & Analysis for the Elevator/Escalator Industry Physical Measurement Technologies’ EVA-625 Elevator Vibration Analysis system and EVA Vibration Analysis Tools software has quickly become the global standard for the measurement of elevator and escalator ride quality, and vibration & sound. Designed to meet international standards for the recording and analysis of elevator and escalator vibration and sound, only the EVA system allows all elevators and escalators to be measured, analyzed, and documented absolutely, easily and at a Very Low Cost. Through continuous refinement & enhancement, the EVA system remains the product of choice for the measurement and analysis of elevator/escalator ride quality, and vibration & sound, while PMT has become the world’s number one supplier of high accuracy instrumentation for the vertical transportation industry.
• Quantify Elevator/Escalator ISO18738 Ride Quality
• Measure Acceleration/Deceleration, Speed, Jerk
• Identify & Locate Rail & Joint Misalignment
• Diagnose Bad Roller Guides
• Document Pre/Post Modernization Changes
• Troubleshoot Sheave, Ropes, Counterweight
• Assess Drive & Controller Function
• Document Elevator Performance Baseline
• Year to Year Elevator Operation Comparison
• Escalator Step/Skirt Index Measurement (w/IMD-1)
Elevator & Escalator System Quality Control, Diagnosis, & Inspection Elevator ride quality is a first indicator of quality design, installation, and service. The EVA system includes powerful tools to assist in quality improvement in all areas of the elevator mechanical and control system. The highly accurate response of the EVA system, and the analysis capabilities offered by the EVA Vibration Analysis Tools software allow technicians to engineering level personnel to rapidly identify problem areas and perform corrective actions. Only the EVA system provides the ability to measure the vibration and sound that people feel and hear and analyze the broad-band vibration and sound that is the result of the function of all dynamic aspects of the elevator system. With a little practice, problems with roller guides, rail joints, motor control systems, and other dynamic elements can be identified in minutes and repairs targeted precisely. Quality of installation and service can be improved dramatically. Because of the simplicity of the EVA system and the information that is returned, the EVA-625 offers unmatched capabilities as an inspection and fast survey tool. The condition of the elevator can easily be compared year after year.
Voice: 603.876.9990 Fax: 603.876.9995
EVA-625 Overview
Ride Quality Measurement & Analysis for the Elevator Industry, Inspection, QC The EVA system was created specifically to meet the needs of the elevator and escalator industry worldwide. Designed using the latest technology and continuously upgraded & improved, the EVA system is the first real standard for quantitative measurement of acceleration and sound level data, and the absolute determination of Ride Quality & diagnosis of elevator system problems. The broad response of the EVA-625 allows diagnosis of mechanical & control elements of elevator and escalator systems. Failing and worn assemblies can be identified before breakdowns occur and safety is compromised. The EVA-625 should be a big part of your Total Quality System.
High Accuracy Acceleration and Sound Measurement, at Low Cost - The EVA system is designed to be highly accurate in the short and long term. The EVA-625 is the first production instrument designed for the elevator industry that conforms to international standards for the measurement of elevator vibration and sound. The EVA system architecture (Division of Data Collection & Analysis) ensures obsolescence and reduces costs. By separating the data analysis from the instrument, software upgrades keep the system current and on the leading edge of elevator/escalator analysis.
EVA System Highlights
EVA-625
• Ride Quality Measurement & Diagnostic Tool for Elevator Service, Analysis, & Inspection • Highly Accurate, Broad Band 3 Axis Acceleration With Frequency Response Down to 0 Hertz • A -Weighted, Fast Response, Sound Level Recording
• Elevator, Escalator, Real Time Vibration Tachometer Operation Modes
• Conforms to International Measurement Standards
• RSB Removable Tri-Axial Acceleration Sensor Block
• Extremely Easy to Use, Portable, Battery Operated, Rugged, Reliable, Small Size, Light Weight • Low Cost – Includes EVA Software, Sensors, Battery Charger, Serial Cable, 1 Year Warranty • Optional Tachometer For Elevator Door and Escalator Handrail/Step Speed Comparison • Optional IMD-1 Escalator Step/Skirt Index Measurement Device
• Robust Hardware Design for Accurate Response to Vibration & Long Term Reliability
EVA Vibration Analysis Tools Software
• Operations under Windows NT, Windows XP, Windows Vista
• ISO Human Response (ISO18738), Acceleration, Sound Level, Speed, Jerk, Distance Time Histories Display • Spectral Analysis Capability, Software Selectable Filters & Sampling Rate
• ISO Human Response Analysis & User Selectable Digital Filtering
• User Defined Units of Measure & Graphical Scaling, Box Zoom & Scroll,
• Project Specification Analysis, Database Compilation
• Multiple Report Printing including Peak to Peak Vibration, Max/Average, Sound Max/Average • Elevator Performance Measurements
Field Operations with a Field Tough Instrument - The EVA system is particularly easy to operate, both in the field and in the office. About the size of a notebook computer, operation is simple and fast. The system can be configured for use on site, without having to carry a PC with you. Simply place the EVA-625 on the floor of the elevator, turn it on, press the record switch, and ‘take a ride’. The data is automatically stored in non-volatile memory with room for over 700 seconds of data. An
The entire bank of elevators can be recorded in minutes. The EVA system is rugged enough so that it can go anywhere at any time with few concerns. Shipping and field operations with a high accuracy instrument are no longer a worry.
Removable 3-Axis Acceleration Sensor - An important EVA-625 design innovation is the removable triaxial accelerometer package (RSB). It can be left within the EVA case for simple ride quality analysis, or the sensor can be removed for attachment to specific elevator mechanical elements. This allows isolated measurements of the vibration response of specific elevator structural members and components such as roller guides, motors, and gear boxes.
The Absolute Measure of Elevators and Escalators
EVA Vibration Analysis Tools - Science in the Software
Elevator Tools
The included EVA Vibration Analysis Tools software is a powerful suite of analytical tools for elevators and escalators in a fully integrated Windows™ based environment. It offers unmatched analysis of all elevator/escalator motion and sound levels, yet is easily used by the engineering or non-technical staff. Using PMT proprietary methods for automatically extracting information from the vibration recordings, ride quality levels, speed, elevator location, acceleration/deceleration, jerk, and sound levels can be evaluated in seconds. An extremely important feature of the software is the ISO Ride Quality Analysis. It must be remembered that ride quality is not measured by the vibration and sound that the instrument records, but rather by the vibration and sound that people feel and hear. PMT is the first and only company to apply ISO2631 based filtering of the vibration data to get a measure of the vibration that people feel. When diagnosing for ride quality purposes, it is important to improve the vibration that people feel. Analytical capabilities include time history zoom and expand with data measurement, elevator travel time measurement, comparison of data with respect to user imposed vibration limits, spectral analysis (FFT), and RMS vibration and sound level measurement (A-weighted, fast response). Of course, the EVA software also prints standard reports on your office printer.