Publicidad
Idiomas disponibles
Idiomas disponibles
2. Description
The electronic counter/timer is able to measure
time, frequencies, rates and periods as well as
counting events or pulses from a Geiger tube.
When counting events, it is possible to set cer-
tain fixed periods of time for the count. In addi-
tion, an arbitrary time period anywhere between
1 s and 99999 s can be programmed.
Counting can be triggered (started or stopped)
either by a signal to the input terminals or man-
ually by means of a switch.
3. Technical data
Operating voltage: 12 V AC, 300 mA via plug-
in power supply
0.5 V ... 15 V AC
Input (9):
Triggering edge
L/H
1 V ... 15 V AC
Input (7):
Triggering edge
L/H
Display:
5-digit LED display
Geiger tube input:
500 V at 300 M
Frequency ranges: 1 ... 100 Hz, 1 ... 100 kHz
Time periods:
1/10/60 s or manual set-
ting 1- 99999 s
Dimensions:
250 x 100 x 160 mm
Weight:
0.9 kg approx.
4. Operation
Note:
The counter has no separate on/off switch.
Power is turned on simply by plugging in the
power supply.
If there is a malfunction, disconnect the equip-
ment from the mains for a few seconds.
4.1 Time measurement
The measurement can be triggered by signals
applied to terminals 9 and 7 or by pressing a
button manually.
Set selector switch (15) to t
4.1.1 Manual trigger
Press the "Start" button (3) and the timer will
start counting.
Press the "Stop" (2) button and the timer will
stop counting.
Press "Reset" (1) to set the timer back to
zero.
(ms or s).
AB
2
4.1.2 Via signal (light barrier 1000563)
Connect one light barrier to socket A (12).
Connect a second barrier to socket B (14).
When light barrier A triggers, the timing starts.
Timing stops upon triggering of barrier B.
4.1.3 Via signal (e.g. free-fall apparatus
1000738)
Connect the free-fall apparatus via sockets
(9), (7) and (11). (Observe colour coding of
terminals).
The timer starts counting when the steel ball is
released from the free-fall apparatus and stops
automatically when the ball strikes the contact
plate at the bottom.
4.1.4 Time that a light barrier is obscured
Connect sockets "Out Start" (8) and "In
Stop" (7) together using experiment leads.
Connect a light barrier to socket A (12).
The period to be measured is the length of time
that a moving body takes to move through the
light beam. Its entry into the beam obscures the
receptor and starts the timer. When the body ex-
its the beam, the receptor detects the light again
and the timer is stopped.
4.2 Periods of a pendulum
Set the selector (15) to the symbol T
Apply an input signal to terminal (9) or con-
nect a light barrier to socket A (12).
Press the "Start" button (3).
The time to be measured is the number of milli-
seconds between successive low-to-high (L/H)
edges detected at terminal (9) or three interrup-
tions to the light beam detected at terminal A
(12).
4.3 Counting periods
4.3.1 Fixed periods:
Set the selector switch (15) to the desired
period (N
1/10/60 s).
A
Apply an input signal to terminal (9) or con-
nect a light barrier to terminal A (12).
Start counting by pressing the "Start" button
(3).
The equipment counts L/H edges at terminal
(9), pulses from a Geiger tube connected to ter-
minal (10) or interruptions to a light barrier con-
nected to terminal A (12).
.
A
Publicidad
