ATD Tools ATD-5540 - Diode Check


OFF
600V
200V
20V
2V
200mV
10A
200Hz
2000Hz
20kHz
FREQ
RPM
x10RPM
200
2K
20K
200K
2M
20M
%duty
3CYL
4CYL
6CYL
8CYL
TACH
OHM
CAT II
I
I
10A
COM
600V MAX
10A MAX fused
600VDC
MAX
Meter Functions – Diode Check ( )
IMPORTANT: 5VSOUIFQPXFS0''UPUIFUFTUDJSDVJU
t4FMFDUUIFDiode CheckTFUUJOHXJUIUIFSPUBSZTXJUDI
*OTFSU
t#MBDLMFBEJOCOMUFSNJOBM
t3FEMFBEJOV-Ω-RPMUFSNJOBM
5PVDIUIF#MBDLUFTUQSPCFUPUIFOFHBUJWFTJEFPGUIFEJPEF
5PVDIUIF3FEUFTUQSPCFUPUIFQPTJUJWFTJEFPGUIFEJPEF
3FWFSTFUIFQSPCFT#MBDLUPUIFQPTJUJWFTJEFBOE3FEUPUIF
OFHBUJWFTJEF
Note:
A good diode will read low in one direction and high in the other
direction when the probes are reversed (or vice versa). A defective
diode will have the same reading in both directions or read
between 1.0 to 3.0V. in both directions.
Diode (-) to (+)
Reverse Probes
(-) to (+)
.4 to .9V OL
OL .4 to .9V
OL 1.0 to 3.0V
1.0 to 3.0V OL
.4 to .9V .4 to .9V
OL OL
.000V .000V
Good
Bad
ATD-5540