16
Each time the yellow multi-function pushbutton (5) is briey pressed,
the display changes between measured temperature and correction
value of the lead resistance.
We can exit the temperature measurement function
by pressing the yellow multi-function switch (5) longer, this is
conrmed by the two sound signals.
by changing the function selector switch.
Note:
For the lead resistance, the actual value measured on the digital
multimeter should be taken as correction value and not any specied
value.
16. Computer interface via RS 232C
The
ZIEGLER
Multi
S multimeters are tted with a serial RS-232C interface
for transmission of measured data to computer. The measured values
are optically transmitted through the case with infrared light to an interface
adapter which is attached to the multimeter. The measured data is passed
to the computer via a cable.
Switching the interface ON
When switching on the multimeter, press the "ON/OFF" pushbutton
(2) and the " DATA--MIN/MAX" pushbutton (3) together.
With interface switched ON, automatic turn-OFF of the meter is
inactive. This is shown on the LCD (1) by ashing of the
(8) symbol.
The ’’DATA " function cannot be activated.
Interface packs as accessories
Interface adapter with memory :
By using this adapter it is possible to store the measured data without
interfacing the multimeter to the computer. This stored data can be
transferred later on to a computer. For establishing a powerful multimeter
system you can connect upto ten multimeters ofine. Online connection
upto six multimeters to the computer is possible via memory adapter.
The interface packs include the adapters, the necessary connection
cables and the " ZIEGLER com 100 " data acquisition and evaluation software
with operating instructions.
RISH com 100 software
The ZIEGLERcom 100
software package corsists of a WINDOWS version.
With ZIEGLER com 100, you can simultaneously access, store, display
and document the measured data of several
ZIEGLER
Multi
S multimeters.
The measured values are presented :
As digital display and analog indication similar to that of the
multimeter. (up to 4 multimeters)
In traces (XY and Yt) as on a 4-channel recorder.
In tabular form (data logger: upto 10 channels).
The measured data is stored in ASCll format for further processing.
For the use of ZIEGLER com 100, the following requirements must be met:
ON
13
Zero adjustment on the 30
W
measuring range
When measuring small resistance values on the 30
W range, you can
eliminate the resistance of the leads and contact resistance by zero
adjustment.
Connect the test leads to the multimeter and join the free ends.
Briey press the yellow multi-function pushbutton (5). The meter
acknowledges zero adjustment by a sound signal, the LCD shows
"00.00"(+1digit) and the decimal point ashes. The resistance measured
at the instant the pushbutton is pressed is used as reference value
(max.200 digits) It is automatically deducted from the values measured
thereafter. Zero adjustment can be cleared.
By pressing the yellow multifunction pushbutton (5) for a long time and
is acknowledges by two sound signals.
By switching the multimeter OFF.
11. Diode test and continuity test
Verify that the device under test is electrically dead. External voltages
would falsify the measured results!
Set the function selector switch (6) to "
"
connect the device under test as shown.
Forward direction and/or short circuit:
The multimeter displays the forward vol tage in Volts. As long as the voltage
drop does not exceed the maximum display value of 1.999V, you can also
rest several series-connected elements or reference diodes with small
reference voltage.
Reverse direction or open circuit:
The multimeter indicates overrange "OL"
Note:
Resistors and semiconductor junction in parallel with the diode falsify the
measured results!
Diode test and continuity test with buzzer
With the "buzzer" function selected, the meter emits a continuous sound
signal on the range 0...approx. 1V.
To switch the buzzer ON:
Briey press the yellow multi-function pushbutton (5).
The multimeter acknowledges turn-ON with a sound signal. At the same
time, the symbol
(18) appears on the LCD.
To switch the buzzer OFF
Briey press the yellow multi-function pushbutton (5) again.
The multimeter acknowledges turn-OFF with a sound signal. The
symbol
(18) disappears from the LCD.
When selecting the function "Diode test and continuity test’’ with the function
selector switch (6), the buzzer is always switched OFF. Repeated brief
pressing of the multifunction pushbutton (5) alternately switches the buzzer
on and off. When pressing the push button for a long time, the buzzer is
always switched OFF, this is acknowledged by the buzzer
sounding twice.
