“KUSAM-MECO”
AN ISO 9001:2015 COMPANY
-15-
CAUTION
Using resistance and continuity function in a live circuit will
produce false results & may damage the instrument. In many
cases the suspected component must be disconnected from the
circuit to obtain an accurate reading.
Resistance, Continuity functions
Press the
SELECT
button momentarily to select the subject
functions in sequence. Last selection will be saved as power up
default for repeat measurement convenience.
Continuity function is convenient for checking wiring
connections and operation of switches. A continuous beep tone
indicates a complete wire.
PC-Comm
MAX 10A
HBC FUSED
JACK
mA
V
OFF
KM 822sEX
Intrinsically Safe TRMS DMM
SELECT
RANGE
HOLD
H
EF
dBm-
/T -T
1
2
MAX 0.6A
HBC FUSED
T
2
T
1
MAX
1000V CATIV
JACK
mA
A
A
COM
V
!
D%
Hz
V
mV
mV
A
Hz
A
Hz
Hz
Hz
AUTO
6
0
k
PC-Comm
MAX 10A
HBC FUSED
JACK
mA
V
OFF
SELECT
RANGE
HOLD
H
EF
dBm-
/T -T
1
2
MAX 0.6A
HBC FUSED
T
2
T
1
MAX
1000V CATIV
JACK
mA
A
A
COM
V
!
D%
Hz
dBm
V
mV
mV
A
Hz
A
Hz
Hz
dBm
Hz
6
0
1
SELECT
KM 822sEX
Intrinsically Safe TRMS DMM
4) OPERATION
CAUTION
Before and after hazardous voltage measurements test the
voltage function on a known source such as line voltage to
determine proper meter functioning.
“KUSAM-MECO”
AN ISO 9001:2015 COMPANY
-16-
Normal forward voltage drop (forward biased) for a good silicon
diode is between 0.400V to 0.900V. A reading higher than that
indicates a leaky diode (defective). A zero reading indicates a
shorted diode (defective). An OL indicates an open diode
(defective). Reverse the test leads connections (reverse biased)
across the diode. The digital display shows OL if the diode is good.
Any other readings indicate the diode is resistive or shorted
(defective).
Discharge capacitors before making any measurement.
Large value capacitors should be discharged through an
appropriate resistance load.
CAUTION
CAPACITANCE, DIODE TEST FUNCTIONS
Press the
SELECT
button momentarily to select the subject
functions in sequence. Last selection will be saved as power up
default for repeat measurement convenience.
FORWARD BIAS
REVERSE BIAS
PC-Comm
MAX 10A
HBC FUSED
JACK
mA
V
Auto
Check
OFF
KM 829
AC+DC TRUE RMS DMM
SELECT
RANGE
CREST
C
HOLD
H
REC
R
EF
dBm-
/T -T
1
2
MAX 0.6A
HBC FUSED
T
2
T
1
MAX
1000V CATIV
JACK
mA
A
A
COM
V
!
D%
Hz
dBm
nS
V
mV
T
1
T
2
mV
A
Hz
A
Hz
Hz
dBm
Hz
AUTO
F
n
PC-Comm
PC-Comm
MAX 10A
MAX 10A
HBC FUSED
HBC FUSED
JACK
JACK
mA
mA
V
V
Auto
Check
Auto
Check
OFF
OFF
KM 829
AC+DC TRUE RMS DMM
KM 829
AC+DC TRUE RMS DMM
SELECT
SELECT
RANGE
RANGE
CREST
CREST
C
C
HOLD
HOLD
H
H
REC
R
REC
R
EF
EF
dBm
dBm
-
/T -T
1
2
-
/T -T
1
2
MAX 0.6A
MAX 0.6A
HBC FUSED
HBC FUSED
T
2
T
2
T
1
T
1
MAX
1000V CATIV
MAX
1000V CATIV
JACK
JACK
mA
A
mA
A
A
A
COM
COM
V
V
!
!
D%
D%
Hz
dBm
Hz
dBm
nS
nS
V
V
mV
mV
T
1
T
1
T
2
T
2
mV
mV
A
A
Hz
Hz
A
A
Hz
Hz
Hz
dBm
Hz
dBm
Hz
Hz
AUTO
V
V
1
SELECT
