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Item no.: RP-C-BPSR-20-700-3-0-0-00-V Brake tester compact 3.5 display: without/analogue/PC; 4WD function: optional, axle load: 4 t
Item no.: RP-C-BPSR-32-850-4-1-0-00-V Brake tester compact 3.5 display: without/analogue/PC; 4WD function: optional, axle load: 4 t
Item no.: RP-C-BPSR-22-700-3-1-A-00-V Brake tester compact 3.5 display: without/analogue/PC; 4WD function: optional, axle load: 4 t
Item no.: RP-SE-SVZ210149-001 Cable connection cable 5 m RS232 of PC-Convert box for brake tester compact 3.0/3.5 compact
Item no.: RP-AZ-25SUB-D-36POL 3 m printer cable, 25 pin SUB-D to 36-pin Centronics, double shielded for brake tester
Item no.: RP-SE-SVZ210131 Swivel bracket for pointer display, with star grip screws for brake tester compact
What is a brake tester and what is it used for?A brake tester is used to check the brake systems of motor vehicles and to locate possible weak points. Here, both the service brake, and the parking brake is checked.
For motor vehicles registered in Europe, certain requirements apply to the braking systems of a motor vehicle. For this purpose, an EU directive was created, which describes exactly how the brake system of a motor vehicle and vehicle trailers must be designed and which values ??must be adhered to.
For a vehicle to comply with this Directive, the braking performance of the braking system of a car registered in Europe must be regularly tested in the main inspection. There are certain permissible examination procedures and aids for this purpose. These include the plate brake tester and the roller brake tester, although the plate brake tester is not permitted in all EU countries and will increasingly be replaced by the advantages of a roller brake tester.
Plate brake tester versus roller brake testerThe main difference between a roller brake tester and a plate brake tester is that in a plate brake tester, the vehicle is in motion while the plates of the brake tester, which measure the braking force of the vehicle, are fixed. That if tested with a disc brake tester, the vehicle must be moved over the plates and braked on the plates to measure the braking force.
In a dynamometer, on the other hand, the car is stationary while the brake-pulley drive rollers move the two wheels (one axle = either the two front wheels or the two rear wheels) of the vehicle. In this way, virtually any length of road or track can be simulated, on which the vehicle moves, while continuously and without having to move the vehicle, brake tests can be performed.
How a roller brake test stand worksIn the roller brake tester, one pair of rollers on each side of the brake tester drives one wheel of the vehicle. The rollers in turn are driven by a chain through an electric motor, which is movably mounted. There is also a follower roller between the drive rollers. The task rollers have the task of stopping the drive motor of the rollers, as long as both wheels of the motor vehicle are not on the two sensing rollers of the brake tester or to run the engine, if so.
As soon as the vehicle has driven onto the wheels of the brake tester, the wheels are set in motion by the rollers. There is a person in the vehicle who, upon a signal, steps on the brake pedal and brakes the wheels. When braking the braking force of the wheels generates a restoring torque to the rollers, whose power is transmitted to the electric motor of the brake tester. Since the motor is movable, it is rotated by the braking torque. This movement is transmitted as a force pulse to a measuring lever on the measuring element of the roller brake tester, which in turn converts the force into an electrical signal. This electrical signal is then passed on to the display of the brake tester and made visible analog or digital.
The roller brake tester is one of the static test methods. Therefore, a driving speed of about 2.5-7 km/h is simulated. In this test method, the braking force can be increased up to the blocking point, but also held intermediate values ??and evaluated. The data obtained here, even over longer and more differentiated brake curves, also makes it possible to detect irregularities, which indicate, for example, a deformed brake disc or weak points on the brake caliper and on the brake pads.
In addition to the braking force can be measured with a roller brake tester and the braking force difference in percent. For example, if the braking force on the left and right sides of a vehicle is larger, the vehicle may, for example, skid during braking.