36
DranTech X
TRA
User’s Guide
V/Hz,
Ω
, Temperature,
and A/Hz Measurements
5.4
Diode Testing
with a Constant Current of 1 mA
∞
Disconnect power supply from the electrical circuit of the device to
be measured, and discharge all high-voltage capacitors.
∞
Make sure that the device under test is voltage-free. Interference
voltages distort measurement results! Refer to chapter 5.1.1 regard-
ing testing for the absence of voltage with the help of the direct
voltage measurement.
∞
Set the rotary switch to
.
∞
Press the
FUNC | ENTER
key.
∞
Connect the device under test as shown.
Conducting Direction and Short-Circuit
The instrument displays forward voltage in volts (display: 4 places).
As long as voltage drop does not exceed the maximum display value
of 5.1 V, several series connected components or reference diodes can
be tested with a small reference voltage and reference diodes.
Reverse Direction and Interruption
The measuring instrument indicates overload
0L
.
Note!
Resistors and semiconductor paths connected in parallel to the
diode distort measurement results!
COM
V
Temp
Ω
Forward Direction
Reverse Direction
0 V !
0.654
0.L
to 5.100 V
Measuring Range:
+
–
0.443
V
!
000.8
Ω
DC
FUNC
ENTER
Summary of Contents for DranTech Xtra
Page 1: ...DranTech XTRA TRMS Digital Multimeter User s Guide P N M240H 2007 Rev A...
Page 5: ...DranTech XTRA User s Guide 5 Contact Persons...
Page 11: ...DranTech XTRA User s Guide 11 Safety Precautions...
Page 25: ...DranTech XTRA User s Guide 25 Control Functions...
Page 43: ...DranTech XTRA User s Guide 43 V Hz Temperature and A Hz Measurements...
Page 49: ...DranTech XTRA User s Guide 49 Device and Measuring Parameters...
