TIMING AND MECHANICS • TIMING A Unilab Digital Stopclock
A
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• Large 12mm high display • Timing features include start/stop and reset via the topmounted push switches or via the front panel 4mm sockets The stopclock can time up to 1 hour in 1/100 second with split (lap) timing if required. It is powered by two AA/R6 or HP7 cells which give many months of use. If light gates are to be used, the Centisecond Timer Module provides extra facilities. Please note this product is not supplied with a battery.
F4H27507
each £43.99
B Centi-Second Timer Module An accessory module which plugs into the front of the Stopclock and allows Light Gates to control the timing in either of two ways. In mode A, the clock measures between successive changes on one input (minimum time of 0.12s). This can be used to time the interruption of the light beam by a vehicle of known length. In Mode B, the clock times between successive changes on either input, so that the time between two Light Gates can be measured. Battery not included.
F4H27749
each £37.50
C Fast Timer The Fast Timer is a versatile, portable instrument for timing brief events with two ranges: 1 to 999.9ms and 1 to 9999µs. The inputs can be controlled by light gates, microphones or mechanical switches, connected via 4mm sockets. Two sockets provide 0 and 5V for connection to sensors if required. The usual care is needed when using microphones to ensure that a repeatable sharp edge is obtained, e.g. use a toffee hammer and steel slab to produce a sharp noise when measuring the speed of sound. Mass: 0.5kg. Size: 170 x 135 x 45mm.
B
F4H28573
each £192.99
CROSS REFERENCE If you want to use the Fast Timer for measuring the speed of sound, a complete kit is available. See the Speed of Sound kit on page 55.
C
The Light Gate on page 78 can also be used with the Fast Timer.
Spares and Accessories
Button Cell Silver oxide button cell type LR44.
F4A54161
74
Fax your order form free of charge to 0800
BLACK YELLOW MAGENTACYAN
1.5V
each £1.99
138 8881
0074UKEO16_UNIPINN.pgs
14.12.2015
13:31