Sifam Tinsley Gamma 20, Руководство пользователя, Страница: 16 / 16

16
02.1058
-
+
F
W
Hz
V
---
V~
mA
---
0 C
---
A
-
+
F
W
Hz
V
---
V~ mA
---
0
C
---
A
-
+
F
W
Hz
V
---
V~ mA
---
0
C
---
A
0.6000
- +
F
W
Hz
V
---
V~ mA
---
0 C
---
A
00000
- +
F
W
Hz
V
---
V~ mA
---
0 C
---
A
17
10. Diode test
Ø
Verify that the device under test is electrically dead. External voltages
would falsify the measured results!
Ø 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 voltage in Volts. As long as the voltage
drop does not exceed the maximum display value of 2.999V, you can also test
several series-connected elements or reference diodes with small reference
voltage.
Reverse direction or interruption:
The meter indicates overrange "OL”
"
Ø
Note:
Resistors and semiconductor junction in parallel with the diode falsify the
measured results!
11. Capacitance measurement
Ø Verify that the device under test is electrically dead. External voltages
would falsify the measured results!
Ø
Set the function selector switch (6) to “F”
Ø Connect the (discharged !) device under test to the “
^
” sockets
via test lead.
and “ F ’’
Note:
Connect polarised capacitors with the " __ " pole to the "
^
" socket.
Resistors and semiconductor junctions in parallel with the capacitor falsify the
measured results!
Ø Connect the test leads to the meter without device under test.
Ø Briefly press the yellow multi-function pushbutton (5).
The meter acknowledges zero adjustment by a sound signal, by
displaying "0,000" resp. “00,00” (+1digit) and the symbol “ZERO” (18)
on the LCD. The capacitance measured at the instant the pushbutton is
pressed is used as reference value (max.500digits). It is automatically
deduced from the values measured thereafter.
The zero adjustment can be cleared
Ø
By pressing the yellow multi-function pushbutton (5) for a long time,
clearance is acknowledged by the two sound signal.
Ø
By switching the meter off.
Zero adjustment on the 30 nF measuring ranges 3nF to 30nF
When measuring small capacitance values on the 3 nF and 30 nF range, you
can eliminate the internal capacitance of the leads can be eliminated by zero
adjustment.