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Dynamometer

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Dynamometer

  1. 1. SDE0337GB(02-03) The Standard in Information and Diagnostic Systems • 260 kW or 360 kW test capabilities • Comprehensive test programs • Microprocessor controlled Sun RAM 3000 Chassis Dynamometer Test Lane Equipment flexibility, adaptability, profitability Technical Specifications Options • Fan blower, moveable, with cable connection • Pressure regulator with water trap • Installation frame RAM 3000 U • Restraining straps kit • Emission analyser (MGA 1500, DGA 1000) RAM 3000 U-260kW RAM 3000 U-360kW General Maximum driving speed km/h 260 260 Temperature range °C 0 - 50 0 - 50 Maximum wheel braking performance km/h kW 260 / 260 260 / 360 Pre-selectable constant speed km/h 0 - 300 0 - 300 Displays Speed km/h 0 - 300 0 - 300 Power kw 0 - 400 0 - 400 Power Supply Voltage V 3N - PE - 400 V~ 3N - PE - 400 V~ Frequency Hz 50 50 Fuse rating slow-blow A 25 25 Compressed air bar 7,5 7,5 Mechanics System Length x width mm 3270 x 1050 x 654 3270 x 1050 x 654 Roller diameter mm 320 320 Roller length mm 560 560 Minimum maximum usable roller width mm 800 - 2200 800 - 2200 Testable wheel size " >= 10 >= 10 Lifting threshold stroke mm 110 110 Lifting load t 3 3 Roller displaced in height mm 96 / 71 96 / 71 Maximum axle weight t 3.5 3.5 www.sun-diagnostics.com All dimensions and drawings within this publication are a guide only, before carrying out any civil works, always obtain the current installation drawings from the service department. Nothing contained within this publication is intended to extend any warranty or representation, expressed or implied, regarding the products described herein. Any such warranties or other terms or condition of sale of products shall be in accordance with Snap-on/Sun Standard Terms and Conditions of Sale for such products, which are available on request. The manufacturer reserves the right to change or delete models and/or specifications without prior notice. Snap-on and Sun are registered trademarks. Snap-on Sun Tech Systems Horsley’s Fields King’s Lynn Norfolk PE30 5DD Tel: +44 (0) 1553 692422 Fax: +44 (0) 1553 774682 Email: sun.diagnostics@snapon.com Sun Diagnostics Europe Email: ies@sun-diagnostics.com The Standard in Information and Diagnostic Systems
  2. 2. For many years Sun has been associated as an industry leader in vehicle testing and in particular its expertise with chassis dynamometers. The Sun RAM 3000 Chassis Dynamometer is available in two configurations 260 kW or 360 kW both offering the same high specifications and detailed test procedures. Not only used as a method of determining and enhancing engine performance, the chassis dynamometer can provide a platform to carry out engine related fault diagnosis and fuel consumption analysis without leaving the workshop. The Sun RAM 3000 Chassis Dynamometer uses an Eddy current brake that offers more versatile operating possibilities. The mobile PC platform is used to control and display the measurement results from the Sun RAM 3000 Chassis Dynamometer. Detailed analysis can be carried out through the screen graphics or print outs. Sun Chassis Dynamometer Key Topic Fuel Consumption The practical use of this unit opens unimagined possibilities in everyday life. Recent opinion polls have shown that almost 20% of all drivers are dissatisfied with the fuel consumption of their vehicles. This problem can be controlled. Emission tester combinations allow to simulate various driving conditions and to draw exact conclusions from the respective emission behaviour concerning the high fuel consumption etc. • Before initiating time-consuming measurements or detail tracing, you can make clear statements whether the fuel consumption actually is too high or whether the customer must accept such a weak point caused by constructional or service conditions. • Only in doing so can the number of errors, which normally are approached by mere guesswork, in a simple way be limited. • As for example, it is possible to expose in this way any too heavily dimensioned acceleration enrichment or to recognise whether the cold- start enrichment is too long active. • It is also possible to determine in which way the different driving styles affect consumption. The comprehensive test programs include: The following programs are available: 1. Program P-max Acceleration of the vehicle from start speed up to maximum speed is done by swiftly changing to the highest gear. After exceeding the point of maximum performance, the clutch is depressed and the vehicle coasts to standstill. The loss in performance is determined whilst the vehicle is coasting. Once completed the values for performance, speed, and engine RPM are indicated both numerically and graphically. 2. Program V-constant It is possible to select a certain limit speed to which the test stand limits the speed of the vehicle being tested. The limit speed can also be changed during the test so that the vehicle performance at different speeds can be tested. The measured values obtained by the preset speed are indicated after finishing the test. 3. Program Power Curve The program "power curve" allows the automatic taking of power curves. For that purpose, any speed range can be chosen by selecting both a high and a low speed limit. After starting the program, the test stand automatically changes the limit speed in the selected zone and records the sequence of the measured values. Having ended the test, a numerical and graphical evaluation can made. 4. Program Tacho Test By means of program "tacho test" it is possible to test the accuracy and linearity of the display at the vehicle tachometer. This program allows to select maximum 10 individual speeds for testing. During the test, the test stand presets the testing speed. As soon as this speed is reached on the vehicle tachometer, the actual driven speed is stored. After the test, the preset and measured values as well as the respective deviations from each other are displayed as a percentage. 5. Program F-constant Program F-const is suited for the simulation of load applications. For that purpose, it is possible to preset a defined force the testing vehicle must drive to in order to simulate uphill driving. The load intensity can also be changed during the test. At the end of test, the measured values resulting from the pre-set load application are shown. Features • Eddy current brake measurement • Remote control and hand controller terminal • Two measurement ranges 260 kW or 360 kW • Fully galvanised chassis • Side restraining rollers • Speed and temperature measurement • Flexible and easy to use software. Configuration • Precision balanced rollers • Pneumatic lifting device • Microprocessor controlled • Zinc plated chassis • Mobile PC platform • Oil temperature measurement • RPM signals measurement (petrol and diesel) • Side restraining rollers • Remote control and LCD hand controller • Comprehensive and easy to use software.

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