MEASUREMENTS, TIME
::
17
Electronic
counter
Multiple function
capability.
Microprocessor
controlled.
User-friendly.
High accuracy.
This microprocessor
controlled eight-digit counter can be used for measure-
ment of time intervals, periods, revolutions per second,
fre quency, pulses, etc. The indicator shows the units of
measurement, and the display indicates the input termi-
Compatible
nal being used. Start/stop terminals for attachment of
microphones, photocells, free fall equipment, etc. are
provided. There is a connector for attachment of a GM-
counter for measurements of radioactivity with selec -
table gate times. The counter is provided with an easy-
to-read LED display and a logically arranged control
panel making the apparatus highly suitable for demon-
stration experiments as well as for student lab exercises.
Memory is provided for storing measured values as well
as an RS-232 port for connection to a computer.
A computer program for analysis of the collected data is
provided. Time intervals down to 1 millisecond, and
frequencies up to 2 MHz can be measured.
Technical Specifications
General: 8 digit 7 segment LED 25 mm high
Power supply: 230 VAC, 50 Hz
Time measurement,
start-stop: from 0.01 ms to 100 s,
resolution 0.01 ms
Collisions: passage
times, min/max: 0.01 ms/100 s, resolution 0.01 ms,
Measurement of pendulum period.
but 1 ms for passage times over 10 s.
Memory storage for 4 values, 2 from
each photocell or 3 values from one
and one value from another.
Acceleration:
passage times
Experiment
min/max: 0.01 ms/100 s, resolution 0.01 ms,
E-1
but 1 ms for passage times over
02
10 s. Memory storage for passage
time A, passage time B, and the time
from A to B.
Period: From 0.01 ms to 10 s.
Memory storage: 50 values
Frequency: 0.01 Hz - 1 kHz, resolution 0.01 Hz
1kHz - 10 kHz, resolution 0.1 Hz
10 kHz - 2.5 MHz, resolution 1 Hz
Counter: 1 count - 10 million counts,
1 count resolution
Measurement times: 1 S, 10 s, 60 s and 100 s.
Measuring the speed of sound.
Gate times: 2.5 MHz / 0.4 ms
Memory storage: 50 values
Dimensions: LxHxW: 405 x 116 x 205 mm. 3.7 kg
2002.50 Electronic counter
®
Science Equipment for Education Physics
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