6
The number of pass times on each input is con-
stantly shown in the display: ‘2 4’ indicates 2
pass times on A and 4 on B.
The counter’s memory holds up to 9 pass times
per input.
When no more measurements are needed, press
‘START/STOP’
once and the light emitting di-
odes
‘Input A’
and
‘Input B’
are turned off. Each
time the push-button
‘SELECT’
is pressed, the
measurements are read out one by one. The
measurements are numbered A1-9 or B1-9.
The readings are in s or ms.
All measurements must be read at least once,
before new measurements can be started by
pressing the
‘START/STOP’
push-button.
Note:
When
‘FUNCTION’
is pressed, all meas-
urements are deleted, and the counter is pre-
pared for new measurements.
5.6 Run and Pass times
•
The function is selected with the push-button
‘FUNCTION’
, and started when
‘START/STOP’
is pressed.
The positive- or negative-going triggering is
setup by pressing
‘SELECT’
and
‘FUNCTION’
simultaneously. The current state of the setup is
shown in the display i.e
Pressing
‘SELECT’
shifts through the four dif-
ferent combinations. When satisfied, press
‘START/STOP’
and the setup is stored in the
internal Lithium Battery backup-memory.
The LEDs
‘Input A’
and
‘Input B’
are lit.
The pass times on
‘Input A’
and
‘Input B’
are
measured together with the run time (the time
from
A
to
B
). During passage of
A
and
B
, the
light emitting diode at
‘Input A’
and
‘Input B’
are turned off.
A
must
be passed before
B
.
If
A
is passed several times before
B
, the time in
memory is the first passage of
A
.
The light emitting diodes
‘Input A’
and
‘Input B’
are turned off, and the run time is displayed.
When the push-button
‘SELECT’
is pressed, the
pass time A is displayed, and another push on
‘SELECT’
displayes the pass time B.
If
‘SELECT’
is pressed again, the display se-
quence is repeated.
Display time unit is s or ms.
All three measurements must have been read at
least once, before a new measurement can be
started by pressing
‘START/STOP’
.
Note:
When
‘FUNCTION’
is pressed, all meas-
urements are deleted, and the counter is pre-
pared for new measurements.
5.7 Geiger-Müller amplifi er module
Geiger-Müller tube is connected to the BNC plug
marked ‘GM‘ at the rear panel of the counter.
The GM Voltage is adjusted with the knob
‘GM
Voltage’
, at the rear panel of the counter.
Selecting the function ‘IMPULSE COUNT GM’,
the GM input at the rear panel of the counter is
used as the only signal input source.
Description of the methods and how to use the
function, please consult the section 5.3 ‘Impulse
Count’ as the methods are the same.
6. PC Programme CNT
Installation
•
Insert the CDROM in drive.
•
From Windows, run the programme <D:\3B
Scientific\CNT PC-Software/SETUP.EXE>.
•
Click the „Target“-button to select where you
want to install the programme (e.g.:
C:\CNT\).
•
Start the installation with the „Start“-button.
The programme is then installed on your
hard disk and the „CNT“ is added.
Summary of Contents for PHYSICS 1003122
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