Instrument Familiarization; Measuring Resistance - GB Intsruments GCM-221 Mode D'emploi

GCM-221 11/29/04 10:39 AM

3.1 Instrument Familiarization:

Symbol Definition:
AC Symbol
Low Battery
Digital Reading

3.2 Measuring Resistance:

Switch the function selector to
Connect red test lead to "+" terminal and black one to
the "COM" terminal.
Connect tip of the test leads to the points where the
value of the resistance is needed.
Read the result from the LCD panel.
Note: When taking measurements from a circuit,
make sure the power is off and all capacitors
are discharged.
!
HOLD
H
OFF
A
V
Ω
A 0 - 400 A
0 - 600
V V
Ω 0 - 200 Ω
600V CAT II
!
300V CAT III
COM
!
600V
Page 6
Data Hold
Continuity
H
Voltage Indicator
V
Ampere Indicator
A
Ω
Ohm Indicator
Ω range.
GCM-221
H
+
5