2119 Bradford Drive, Arlington TX 76010
Call Tony Savarese at 817-265-6435 for sales and technical support
JOURNAL RUNOUT MEASURING SYSTEM:
Quotation and Description - Revised April 28, 2009
Thank you for your interest in our Journal Runout Measurment System. API610 has new requirements for the electrical runout measurement of a bearing journal or electrical probe area. Our runout instrument complies with these new API specifications. The complete system is described below in detail. All prices are FOB Arlington TX. Standard delivery time is 30 days. Please feel free to call any time if you have any questions.
Complete System as described below for measuring both the Electrical Runout and Mechanical Runout of a bearing journal. Electrical Runout is measured with an Eddy Current Sensor similar to that made by Bently Nevada. The Mechanical Runout is measured with an LVDT probe. Tracking of the angle is managed by an incremental encoder running tangentially on the shaft. You can measure one or both types of runouts. Your shaft can be turned by hand without requiring constant speed.
A System as described below but without the LVDT probe and without the encoder. This would be for measuring Electrical Runout only. Your shaft must be rotated at constant speed by machine rather than at variable speed by hand. The run out software and hardware will only measure the Electrical Runout. This system can later be traded in for an upgrade to a complete system.
If you do not need all the features of the complete system, but need more then the minimum system, give us a call and we can configure the system as you desire and make the appropriate adjustments in the price.
EXTENT OF DELIVERY:
We include all the hardware necessary to take electrical and mechanical runouts at the same time is included except for the computer and V-blocks. If you want us to include the computer, please call 817-265-6435 for information on selecting a computer and the prices. Typically, any current computer system being sold with a full version of MS Windows will work. You will also need 90 degree V-blocks to support your rotor during measurement. Depending on the weight of your rotors, we would recommend that you use nylon inserts in your V-blocks. If you need us to supply V-blocks, we will need the range of your rotor weights and journal dimensions in order to quote. The Standard System includes:
Eddy Current Probe and cable (Electrical Runout - Schenck Vibronecs IN-085) LVDT Mechanical Probe and cable (Mechanical Runout resolution: 0.00002") Proximity switch and cable (key phasor) Quadrature encoder with index and cable Four (4) Magnetic base assemblies to mount the probes and encoder Signal Conditioner/interface box Computer Interface Cable (USB) Rugged, water proof carrying case. By Stormcase Software and license 3 year warranty and life time free software updates Setup, installing the software on your computer, and training. Hotel and airfare not included.
OPTION - Budgetary price for a standard computer
We have decided to make the computer an option because many companies require computer systems to be purchased through their own MIS departments. If you want us to supply the computer, we can do so as an option. The optional computer will be a brand new one and I will provide you all the original cash receipts and papers so that you can register it and claim any rebates or service. We charge a service fee of $175 to handle the purchase, configuration, and delivery of the computer. Computer prices fluctuate so you should budget a total of $2000 for this option. Regardless of who supplies the computer, we will visit your facility and install the software and provide training. This would be done in one day. The computer that you choose must have a current full version of a Microsoft Windows operating system. Other operating systems can be supported at additional cost. The computer must also meet the following requirements:
Pentium 4 at 600 MHz or higher 256k RAM or more One (1) Gigabyte available space on the Hard Drive or more Screen adjustable to a 1024x768 resolution Ethernet interface CD ROM Internet capability to receive updates USB port
All telephone support is free. A Three (3) year warranty is included on all parts except the computer. The computer warranty would be provided by the computer manufacturer or distributor. All hardware is off the shelf with minor modifications to connections. Warranty is handled on a replacement basis. Just call for over the phone troubleshooting and get an RMA to return the part for replacement. When we receive the bad part, a replacement will be returned the next day. If you are in the continental US, shipping of the new replacement part is covered by us for standard ground delivery. If you require overnight replacement, you will be responsible for the shipping cost. No purchase order is required unless you require a new part in advance of us receiving the damaged part. After we receive the part, it will be evaluated. If the problem is a result of misuse, this warranty will not apply and an invoice will issue which would include the details of our findings on the cause of failure.
SETUP and TRAINING:
If you are in the Continental US, labor and travel expenses for on-site setup and training is included in the price except for hotel and airfare. We would be traveling from Dallas Texas and visit your facility for one day. At that time we will install the software on your computer. We would do this through your computer department if they require. Once installed, we will show your operators how the system works and how to set it up to take measurements. All features will be reviewed. Maximum attendance is 6 people. There is a small charge for additional time to train more people.
The Runout Software is provided on CD ROM. It was developed with the new API specification in mind plus additional features described below. Any new releases after your purchase will be available for free on our website. There is NO additional license fee. There is no requirement to install the latest version to get support. All versions will always be available on the website and all versions will be supported. New releases will be issued to incorporate new features. Customers can send suggestions by email or through the website. Suggestions would be incorporated as part of our continuous improvement program and will be available as new releases are issued. A readme file will always be included in the new release to identify the details of all the changes.
The software that we provide includes standard report types and includes many fields to enter various parameters. There is no limitation of how many computers you can install the software. All data can be viewed and reports can be generated on any computer without requiring the interface hardware or additional license fees. The hardware is only required to take new measurements.
We include a Schenck Vibronex probe which is an eddy current sensor. These are just like the Bently probes except the oscillator/demodulator electronics are inside the sensor making for a much more simple setup. Since the electronics are inside the sensor, there is no requirement for a special calibrated cable. The dimensions of the Vibronex are the same as the Bently probe. The temperature limit is lower for the Schenck probe as compared to the Bently but this is not an issue during rotor repair. If you prefer to use your existing eddy probe, then we will provide an adapter cable.
An LVDT type probe is used for measuring mechanical run out. The probe tip is interchangeable with any AGT type indicator tip like those used on Starret indicators. The electronics to drive this probe are internal to the interface box. By setting up both probes, the software can show you both the mechanical and electrical run out at the same time for one probe surface. This is displayed graphically with displacement/gap vs angle. Usually these probes are 90 from each other if measurements are taken in V-blocks because they would be setup normal to the V-block surface. The software shifts the trace in the graph so that both traces are in phase.
A key phasor or proximity switch is used to identify the beginning of each revolution. It can trigger off the key or key way. Setting up the gap is aided with an LED on the sensor. You can set the program to trigger on the leading edge, trailing edge, or center of the keyway. As the rotor is rotated, a loud beep sounds to let you know each time you pass the trigger. The operator can have the software measure any number of revolutions. The trace for all revolutions can be shown, or an average of the revolutions can be plotted. A minimum of one revolution must be measured. This run out instrument is compatible with shafts having more than one key or keyway.
The encoder is used to monitor the angle during the measurement. This allows the operator to turn the rotor by hand and the plots will still be correct with respect to the angle. If you are turning with a machine at constant speed, you do not have to connect the encoder. The encoder is provided on a magnetic base and has a pulley on it. The encoder can be driven by a Buna belt, or the pulley can ride tangentially on the surface of the rotor. Since the encoder bracket is springloaded, it will mantain contact with the rotor. There is a threaded insert in the center of the pulley so the encoder can be directly driven. If directly driven, the proximity switch is not required because the internal index of the encoder can be used for the trigger signal. The interface box is designed to eliminate the errors inherent with encoders such as ringing in the lines as well as chatter that is caused when the encoder stops on a transition of the quadrature. Please call for a description on how this works.
OPERATION and LIVE CURSOR:
Once the probes are setup, the operator starts the program. There is a large display of a bar graph to assist the operator setting the gap of the eddy probe and the center position of the mechanical probe. Then the operator confirms the positions of the probes and number of revolutions to measure (default is one). The operator presses a button when ready to take a bearing runout measurement and then rotates the rotor at will. The machine records the data as it is turned and knows when to start and stop based on the trigger of the prox switch or encoder index. Data is immediately displayed graphically in a full screen with a large live cursor. As the operator continues to rotate the rotor, the
large live cursor moves along the graph indicating the position with respect to the probe. The smaller curser indicates the high spot in the runout. This makes it easy to mark the high spot on the rotor.
This system is very easy to use for measuring bearing journal runout and meets the requirements of API-610. We appreciate your interest and look forward to your order. If you have any questions, you can reach us at (817) 265-6435.
2119 Bradford Drive
Arlington TX 76010