UNI-T UT207 User Manual

C. Testing Diodes (see figure 5)
To avoid damages to the Meter or to the devices
under test, disconnect circuit power and
discharge all the high-voltage capacitors before
testing diodes.
Use the diode test to check diodes, transistors, and
other semiconductor devices. The diode test sends
a current through the semicondutor junction, then
measure the voltage drop across the junction. A
good silicon junction drops between 0.5V and 0.8V.
To test the diode out of a circuit, connect the Meter
as follows:
Figure 5
Warning
Red
Black
Model UT207/208: OPERATING MANUAL
22

UNI-T UT207 Specifications

General

Backlight	Yes
AC current range	66 - 1000 A
DC voltage range	6.6 - 600 V
Resistance range	20 - 20000 Ω
Basic accuracy (frequency)	±(0.1%+3)
Basic accuracy (DC current)	±(1.5%+8)
Basic accuracy (DC voltage)	±(0.8%+1)
Basic accuracy (resistance)	±(1%+2)
Temperature measurement range	-40 - 1000 °C
Dimensions (WxDxH)	105 x 45 x 286 mm
Battery voltage	9 V

Weight and Dimensions

Weight	533 g