UNI-T UT105 User Manual

Model UT105: OPERATING MANUAL
35
Measurement Operation(19)
(5) Set the rotary switch to the 200kΩ and test the secondary
coil of the ignition coil.
(6) Connect the red test lead probe to the secondary
outlet and the black one to the primary “-” pole. Refer
to various kinds of automotive manuals for the details.
(7) The secondary resistance is generally in a range of 6 kΩ
to 30 kΩ. Refer to various kinds of automotive manuals
for the details.
(8) For a heater ignition coil, repeat the said testing steps.
Note: For a heater ignition coil, the resistance may
be a little higher because the resistance of a coil will
vary with the temperatures. The higher the temperature,
the higher the resistance will be and vice versa.
2. Ignition System High-Voltage Damper Testing
(see figure 11)
(1) Move the connectors of the ignition system from the
engine. Refer to the ignition system movement
procedure in various kinds of automotive manuals for
the details.

UNI-T UT105 Specifications

General

Product type	Digital multimeter
AC voltage range	2 - 750 V
DC current range	0.2 - 10 A
DC voltage range	0.2 - 1000 V
Dimensions (WxDxH)	88 x 39 x 179 mm
Battery voltage	9 V

Weight and Dimensions

Weight	352 g