GW Instek GDM-8251, User Manual

Page: 16 / 59

BASIC MEASUREMENT
31
Select Resistance range
Auto range
To turn the automatic range selection
On/Off, press the AUTO key.
Manual range
Press the Up or the Down key to select
the range. AUTO indicator turns Off
automatically. If the range is unknown,
select the highest range.
Selection list Range Full scale @ slow rate
GDM-8251 GDM-8255
100
Ω 120.000 Ω 199.999 Ω
1k
Ω 1.2000k Ω 1.9999k Ω
10k
Ω 12.0000k Ω 19.9999k Ω
100k
Ω
120.000k Ω 199.999k Ω
1M Ω
1.20000M Ω 1.99999M Ω
10M Ω
12.0000M Ω 19.9999M Ω
100M Ω
120.000M Ω 199.999M Ω
Note
For more detailed range, see the specification at page112.
GDM-8200 Series User Manual
32
Diode Test
Background
Diode test checks the forward bias characteristics of a
diode by running a constant forward bias current, 2mA,
through the DUT.
1. Activate diode
test
Press the key once.
2. Diode mode
display appears
+ V Indicates Diode test
DIODE 2nd display shows the title
3. Connect the
test lead and
measure
Connect the test lead between the V
and COM port; Anode-V,
Cathode-COM. The display updates
the reading.
COM