Brake Testing & Decelerometers



Bowmonk BrakeCheck
  Easy to Use
  For all Vehicle Classes
  Tests Service and Hand Brake
  Suitable for ABS-equipped vehicles
  Portable Printer Available
  Download Data to PC
The Bowmonk BrakeCheck is a fully self-contained, user friendly, portable brake tester, used by workshops, government traffic authorities and Authorised Test Facilities (ATF's)
around the world to record the braking efficiency and percentage of braking imbalance of all classes of vehicle from a Motorcycle to an HGV, in a matter of minutes. 
The BrakeCheck is also approved by the DVSA for performing the quarterly voluntary brake tests now required as part of the interim safety inspections. 
The Bowmonk BrakeCheck determines braking efficiency of both the Service Brake (Foot Brake) and Hand Brake by measuring the rate of deceleration from a speed
of around 20 mph until the vehicle comes to rest.   
Designed to be self-compensating, the instrument will indicate on the LED screen when it is positioned level enough to perform a brake test, with a generous tolerance
to ensure that this is easy to achieve. 
The unit indicates whether the vehicle pulls to the left or right during braking, and is also capable of measuring and displaying acceleration.
Test results can be viewed on the display panel or downloaded to a PC for saving or printing.  A printed report can also be produced at the time of testing
using the portable infra-red printer. 

The device operates on a rechargeable lithium-ion battery pack and will power-down after a period of inactivity to conserve energy.

For more info click HERE

Bowmonk VI & 2000

 Supports Pedal Force Transducer
 Built-in Printer & Keyboard
 Also measures Acceleration (2000 only)
 Easy to Use
 For all Vehicle Classes
 Tests Service and Hand Brake
 Download Data to PC (2000 only)


The Bowmonk VI & 2000 Electronic Brake Meters have built-in printers and support optional pedal force transducers to measure the force applied
to the vehicle's footbrake during braking.  Using the pedal force transducer will also identify any "braking delay" – the time between depressing the
brake pedal and the brakes being applied.
The VI & 2000 are extremely versatile instruments designed for brake and skid testing, road traffic accident investigation and reconstruction and vehicle
safety inspections.  Portable and DVSA approved, the units are easy to use and produce hard copy evidence of the test results on a built-in printer.  All results
are time date stamped and additionally the vehicle and examiner identification can be included – having been entered using the built-in keyboard.
For brake testing applications, the units will also calculate from the deceleration, time and slope, the vehicle speed at braking and distance travelled. 
For heavy vehicle brake testing in mines and quarries, these units measure brake effort, which takes into account the vehicle speed and ground slope.

The Bowmonk 2000 allows test results to be downloaded to a PC and is also able to measure acceleration.

For more info click HERE

Bowmonk Brakemeter / Dynometer

Replaces the Tapley Meter
Hand-made precision instrument
Windscreen suction cup
Measures deceleration & acceleration
Easy to use
For Vehicle Classes 3, 4, 5 & 7
Optional Accessories:
 – Heavy Base
 – Wooden Carry Case
The Brakemeter / Dynometer is a hand-made precision instrument that mechanically measures both deceleration and acceleration.  The instrument consists of a
finely balanced pendulum, free to respond to any changes in speed or angle, working through a quadrant gear train to rotate a needle round the dial.  The dial is black
with silver white graduations and has a linear length of 5 1/2 inches (114 mm).  The unit is filled with a special fluid which damps out all vibration.  Other than
a calibration every 2 years, which is carried out by Bowmonk, no maintenance is necessary. 
The dial is calibrated in percentage "G", the accepted standard throughout the world for measuring acceleration and deceleration. There are no connections to
the vehicle other than mounting – either with two self-tapping screws onto a heavy stand or by using the suction cup operated by the small side lever.
In the UK, Bowmonk brake meters are approved by the DVSA for use in the annual MOT vehicle-testing scheme.  Wherever brake testing is mandatory by law the
Bowmonk Brakemeter/Dynometer is an approved brake test instrument.  UK has fully approved UKAS testing laboratory and recalibrate and repair the
Brakemeter/Dynometer, the Tapley meter, and the newer electronic decelerometers.

For more info click HERE

Tapley Brake Test Meter

   The original brake test meter
   In production for almost 100 years
   Hand-made precision instrument
   Measures deceleration and stopping distance
   Easy to use
   For Vehicle Classes 3, 4, 5 & 7
   ** Available with floor block or clamp
   ** Available with scale in Feet or Metres
The Tapley meter is the most recognised international standard decelerometer, and as such is trusted by many leading government authorities around the world
to set local brake testing standards.  Results of Tapley meter tests are accepted as evidence of braking efficiency in Courts of Law throughout the world.
For new customers we recommend that the Bowmonk Brakemeter / Dynometer is ordered instead, but for existing customers the Tapley Brake Test Meter is still
available to order with a scale reading in either Metric or Imperial for stopping distance.  G force is always shown in %G. The vehicle being tested must be driven at a 
speed of at least 15 mph (20 mph recommended).  
A choice of two mounting mechanisms is available – a floor block or a clamp.  All floor block mounting types are supplied with wooden boxes, while clamp mounting
types are supplied with carry cases.  Please refer to the "Part Codes" tab above for the various Tapley Meter models.
For more info click HERE

Bowmonk AFM2 Airfield Friction Meter

   FAA (& others) Approved
   Easy to Use
   Compatible with ABS braking systems*
   Built-in Printer
   PC link capability
   Backlit display for night use
   Built-in rechargeable battery
The BOWMONK AFM2 is a compact, portable electronic instrument for measuring and recording the maximum deceleration possible on an airport runway
or road surface.  The AFM2 is recognised worldwide and approved by leading civil aviation authorities, including the FAA, the Japanese Civil Aviation Bureau,
the Romanian Civil Aeronautic Authority and Transport Canada.
The BOWMONK AFM2 is the modern day equivalent of a mechanical decelerometer such as the Bowmonk Brakemeter or Tapley Brake Meter.
It contains a solid state accelerometer and an accurate crystal controlled clock. During a friction test the accelerometer measures the deceleration (g-force)
experienced by the transporting vehicle, 400 times per second with an accuracy of better than 2%. The output is read by a microprocessor and stored in the
128 Kb memory for automatic analysis at the end of the test.
In use the BOWMONK AFM2 is simply positioned on the passenger seat or in the footwell of the test vehicle – usually a good condition pick-up with
balanced springing and good tires. The vehicle does not need to come to a complete stop to calculate runway friction.

Control and setting of the BOWMONK AFM2 is via a seven button keypad which provides for airport, runway and operator identification.

The BOWMONK AFM2 is fitted with a two line alpha-numeric liquid crystal display. This is used to prompt the user for command entry via the keypad, to
indicate results and to give any error messages. Night time operation is facilitated by back-lighting of the display panel.
The BOWMONK AFM2 contains a miniature dot matrix impact printer capable of printing text in 40 columns and graphics of 240 dots per line. Printout
of results is obtained by pressing the Print button whilst viewing stored readings.  The printout will show individual friction readings, averages for each third
of the runway and a total average of all friction readings taken. The printout will not fade and duplicate copies can be taken automatically.
The BOWMONK AFM2 is powered by an internal rechargeable battery. When fully charged this will power the instrument for at least 12 hours testing and
printing. The battery voltage and charge can be shown on the display.
*The AFM2 is ABS compatible, however please refer to your local aviation authority for advice on its use with ABS enabled vehicles.

For more info click HERE