14
12.Capacitance measurement
(ZIEGLER
Multi
15S and 16S)
Verify that the device under test is electrically dead. External voltages
would falsify the measured results!
Set the function selector switch (6) to "F"
Connect the (discharged !) device under test to the "
"and ’’F’’
sockets via test lead.
Notes:
Connect polarised capacitors with the " " pole to the "
" socket.
Resistors and semiconductor junctions in parallel with the capacitor falsify
the measured results!
Zero adjustment on the 30 nF measuring range
When measuring small capacitance values on the 30 nF range, the
internal resistance of the multimeter and the capacitance of the leads
can be eliminated by zero adjustment.
Connect the test leads to the meter without device under test.
Briey press the yellow multi-function pushbutton (5).
The meter acknowledges zero adjustment by a sound signal, by
displaying "00.00"" (+1digit) on the LCD and by a ashing decimal
point. The capacitance measured at the instant the pushbutton is
pressed is used as reference value (max.200digits). It is automatically
deduced from the values measured thereafter.
The zero adjustment can be cleared
By pressing the yellow multi-function pushbutton (5) for a long time,
clearance is acknowledged by the two sound signal.
By switching the multimeter off.
13. Frequency measurement (
ZIEGLER
Multi
15S and 16S)
Frequency measurement is possible on all voltage measuring ranges in
AC,DC and (AC+DC) modes.
Set the function selector s witch 6) to V
~
, V
or V
Connections are made the same way as for voltage measurement,
See foot note (8) on page 21.
Briey press the yellow multi-function pushbutton (5)
The multimeter switches to frequency measurement. The frequency
is displayed on the LCD.
See section "17. Specications" for the lowest measurable
frequencies and the maximum permissible voltages.
Changing over between voltage, frequency and duty cycle
measurement
Repeated brief pressing of the yellow multi-function switch (5) changes
the measuring functions in the following order:
Voltage
frequency
duty cycle
voltage ....
From frequency or duty cycle measurement, directly switching back
to voltage measurement is possible.
by pressing the yellow multi-function pushbutton (5) for a long time.
The meter acknowledges this by two sound signals. The voltage
measuring range last selected is maintained.
by operating the function selector switch (6).
15
14. Duty cycle measurement
(ZIEGLER
Multi
15S and 16S)
With duty cycle measurement, we can determine the ratio of pulse
duration to cycle time of recurring square-wave signals.
Set the function selector switch (6) to V
or V
Connections are made in the same way as for voltage measurement
(See foot note 8) on page 21.
Briey press the yellow multi-function pushbutton (5) twice.
The meter switches to duty cycle measurement. The duty cycle-that
is the percentage pulse duration of a signal-is displayed on the
LCDin%
That is:
Pulse duration
Duty cycle (%) =
x 100
Cycle duration
Notes :
The applied frequency must remain constant during the duty cycle
measurement. Change -over between voltage, frequency and duty cycle
factor measurement is done as described in the preceding section.
15. Temperature measurement
The
RISH
Multi
12S...16S allows you to measure temperature with
Pt100 and Pt1000 temperature sensors in the range
from - 200 (- 100)
0
C...+850
0
C.
Set the function selector switch (6) to " W"
Connect the sensor to the two unblocked terminals.
Briey press the yellow multifunction pushbutton (5).
The multimeter switches to temperature measurement, it
automatically detects the connected sensor (Pt100 to Pt1000) and
shows the measured temper ature in
0
C on the digital display.
Notes:
This measurement automatically considers the lead resistance of
temperature sensors which are available as accessory .
It is not possible to switch over to temperature measurement when the
30W
Sensor lead resistance up to 50
W
Lead resistance of sensors having a value differing from that of
W
Briey press the yellow multi-function pushbutton (5) again.
The LCD now displays the resistance value which the multimeter
automatically considers after selecting the temperature measuring
range. We can recognise that this is the resistance correction value
on the temperature measuring range. The ’’
0
C’’ character is
simultaneously shown on the display.
You can set the lead resistance correction value as follows:
Press the DATA--MIN/MAX pushbutton (3) to increment the value, or
the AUTO/MAN pushbutton (4) to decrement the value. Each time
the pushbutton is briey pressed, the value changes by one digit.
Briey press the yellow multi-function pushbutton (5) again.
The LCD displays the measured temperature. The ashing decimal
point shows you that we have entered a correction value for the lead
resistance. The correction value is retained as long as multimeter is
switched on.
sensors can be considered up to a value of 50
as follows:
