7
3. Check the needle position and the get the reading on V.A scale.
Note:
Excessive current input across mA range will blow the fuse
that must be replaced by a same fuse rating 0.5A/250V or
10A/250V. The max. testing time once must be not more than
15sec. and pause 5min. for next time at big current load.
The Maximum terminal voltage drop is 250mV except for the
10A range
.
Note: If
connected incorrectly with the voltage at these ranges,
quickly remove the test leads from the circuit as to avoid
damage to this tester.
(This tester can afford the voltage <250V DC/AC rms. for the
period of 5 seconds max.)
Resistance Measurement
WARNING: DO NOT APPLY VOLTAGE TO MEASURING
TERMINAL WHILE RANGE SWITCH IS IN OHM POSITION
.
1. Set the selector switch to the appropriate
Ω
range to be used.
2. Connect the BLACK test lead to the “-COM” jack and the RED
test lead to the Red “+” jack.
3. Short the leads by touching the probes together. Pointer should
read zero at the right hand end of the upper most scale, if it
doesn’t, use the Ohm adjust knob on the right hand of the panel
to line up the pointer with zero. (If pointer can’t be brought to
zero, replace battery.)
4. Connect the test leads across the resistance to be measured.
5. Take reading on the top “
Ω
” scale and multiply it by the
multiplication factor indicated by the selector switch.
6. If there is little or no pointer movement from the left side of the
scale, reset the selector switch to higher range. The effective
reading scope on an Ohm meter scale is within the area of
between 25 degree of Arc left side to the Midscale and 25
degree right side to the Midscale.
Note: If connected incorrectly with the voltage, quickly remove
Summary of Contents for mt-2017
Page 18: ...17 Diode 10K 1K 100 10 1 A 1 A 10 A 100 mA 1 mA 10 1 2 COM 3 Rx10 4 1 6 2 9V 3 4...
Page 21: ...20 DC10A 10A 1 1 5V 90 90 2 9V...
Page 22: ...21 3 90 0 5A 250V 10A 250V 0 5A 250V 10A 250V 5 20mm UL 90 1 1 5V 1 5V 9V...
Page 26: ...25 Diode 10K 1K 100 10 1 A 1 A 10 A 100 mA 1 mA 10 1 2 COM 5 Rx10 6 1 6 2 9V 3 4...
Page 29: ...28 DC10A 10A 1 1 5V 90 90 2 9V...
Page 30: ...29 3 90 0 5A 250V 10A 250V 0 5A 250V 10A 250V 5 20mm UL 90 1 1 5V 1 5V 9V...
Page 31: ...30 MT 2017 C 12 CD 0755 83692415 83692986 83246594 83247554 0755 83692143...
