Radio Shack 22-812 - Page 15

15
Using the Meter
7. Connect the test leads to the circuit you want to
measure. To measure different circuits, see
“Making Measurements” on Page 18.
±ý
.
..
.
*1.&+0)"#"/'#574'/'06
Press HOLD to hold all indications on the display.
Hold
appears and the meter holds the measured
value on the display even if you remove the probes
from the circuit.
To cancel hold, press
HOLD again or set the
selector to another setting or press
SELECT.
Hold
disappears.
75+0)"4'.#6+8'"/'#574'/'06
You can set the meter so it does not show an
unwanted value that might appear as a result of
internal or other factors. For example, the meter
always shows a small value when you set the
selector to
•
••
•
to measure capacitance, even
when you have not connected the test leads to a
component. (This happens because the meter
400 mA
ZZZ$Z ýc7
ZZZ$Z ýc7ZZZ$Zýc7
ZZZ$Z ýc7
4 A
Z$ZZZý7
Z$ZZZý7Z$ZZZý7
Z$ZZZý7
10 A
ZZ$ZZý7
ZZ$ZZý7ZZ$ZZý7
ZZ$ZZý7
400
Ω
ZZZ$Zý
ZZZ$ZýZZZ$Zý
ZZZ$Zý
Ω
ΩΩ
Ω
4 k
Ω
Z$ZZZýa
Z$ZZZýaZ$ZZZýa
Z$ZZZýa
Ω
ΩΩ
Ω
40 k
Ω
ZZ$ZZýa
ZZ$ZZýaZZ$ZZýa
ZZ$ZZýa
Ω
ΩΩ
Ω
400 k
Ω
ZZZ$Zý a
ZZZ$Zý aZZZ$Zýa
ZZZ$Zý a
Ω
ΩΩ
Ω
4 M
Ω
Z$ZZZýC
Z$ZZZýCZ$ZZZýC
Z$ZZZýC
Ω
ΩΩ
Ω
40 M
Ω
ZZ$ZZýC
ZZ$ZZýCZZ$ZZýC
ZZ$ZZýC
Ω
ΩΩ
Ω
4 nF
Z$ZZZýd<
Z$ZZZýd<Z$ZZZýd<
Z$ZZZýd<
40 nF
ZZ$ZZýd<
ZZ$ZZýd<ZZ$ZZýd<
ZZ$ZZýd<
400 nF
ZZZ$Z ýd<
ZZZ$Z ýd<ZZZ$Z ýd<
ZZZ$Z ýd<
4
µ
F
Z$ZZZý
Z$ZZZýZ$ZZZý
Z$ZZZý
µ
µµ
µ
<
<<
<
40
µ
F
ZZ$ZZý
ZZ$ZZýZZ$ZZý
ZZ$ZZý
µ
µµ
µ
<
<<
<
4CPIG &KURNC[
±
"016'"
±
"
The display might show a
phantom reading in some
DC and AC voltage ranges
when the test leads are not
connected to a circuit. This
is normal. The high input
sensitivity produces a
“wandering” effect. When
you connect the test leads
to a circuit, the
measurement appears.
.
"%#76+10"
.
If
Eý<
Eý<Eý<
Eý<
(overflow) appears,
the measured value
exceeds the range for the
selected setting. This is
normal when you measure
resistance or a diode, or do
not have the leads
connected to a component.
If you are measuring
voltage or current when
Eý<
Eý<Eý<
Eý<
appears, immediately
disconnect both probes
from the circuit, then touch
the probes together or
choose another range.
22-812.fm Page 15 Monday, April 8, 2002 1:32 PM