Slipperiness Dynamic SLIP DS

Standard
UNI EN ISO 10545-17 
DRAFT EN ISO 10545-17 ANNEX A, D.M. n° 236 GIUGNO 1989 - AS/NZL 4663 : 2004 - method B.C.R.A
Description
Instrument to determine the dynamic coefficient of friction COF manufacturer according to BCRA method. The instrument is a vehicle with 4 wheels composed by an aluminium chassis and a steel epoxi painted cover. A gear motor propelled by a battery Li-ION muve two wheels at 17 mm/s. The COF measure is acquired during the movement of the instrument by a slider Ø 9 mm (Four-S rubber or leather) in contact with testing surface. The vibration of the slider is transmitted to an LVDT sensor. The LVDT sensor converts the mechanical signal in a proportional electronic signal. The signal processed by an A/D microprocessor shows the medium coefficient of friction COF. At the test end the display LCD shows the medium value of COF obtained; it can be printed the diagram by the on board printer.The instrument is supplied by software running in Windows XP/Vista 7 and RS-232 output to connect a PC.
Technical Specifications

Electronic transducer LVDT with sensitivity of 800 mV/V/mm and accuracy of 0,3 %.

Software Data Collection.

Output RS - 232 to connection PC .

Electronic system with display for the instant read and average slipperiness (COF).

Thermal printer for test report.

Programmable integration time from 1 up to 15 sec.

Supply: rechargeable Li-ion battery.

Adapter RS232-VSB.

Equipment

n°3 slider with leather

n°3 slider with rubber (4S) Four-S

Battery charger 230 VAC - 50/60 Hz

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