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Idiomas disponibles
Idiomas disponibles
7. OPERATING INSTRUCTIONS
7-1 Attention before operation
7-1-1 Check 9V battery. If the battery voltage is less than 7V, display will show "
ensure measuring precision.
7-1-2 Pay attention to the "
value.
7-1-3 The range switch should be positioned to desired range for measurement before operation.
7-2 Measuring DC Voltage
7-2-1 Connect the black test lead to "COM" jack and the red to "VΩmA" jack.
7-2-2 Set the rotary switch at the desired "V
7-2-3 Connect test leads across the source or load under measurement.
7-2-4 You can get reading from LCD. The polarity of the red lead connection will be indicated along with the voltage value.
NOTE:
1. When the value scale to be measured is unknown beforehand, set the range selector at the highest position.
2.
When only the figure'1' or '-1' is displayed, it indicates over-range situation and the higher range has to be selected.
3.
"
" means you can't input the voltage more than 600V, it's possible to show higher voltage, but it may destroy the inner circuit
or pose a shock.
4.
Be cautious against shock when measuring high Voltage.
7-3 Measuring AC Voltage
7-3-1 Connect the black test lead to "COM" jack and the red to "VΩmA" jack.
7-3-2 Set the rotary switch at the desired "V~" range position.
7-3-3 Connect test leads across the source or load under measurement.
7-3-4 You can get reading from LCD.
NOTE:
1. When the value scale to be measured is unknown beforehand, set the range selector at the highest position.
2.
When only the figure '1' is displayed, it indicates over-range situation and the higher range has to be selected.
3.
"
" means you can't input the voltage more than 600V, it's possible to show higher voltage, but it may destroy the inner circuit
or pose a shock.
4. Be cautious against shock when measuring high Voltage.
7-4 Measuring DC Current
7-4-1 Connect the black test lead to "COM" jack and the red to the "VΩmA" jack for a maximum 200mA current , for a maximum 10A
current, move the red lead to the 10A jack.
7-4-2 Set the rotary switch at the desired "A
7-4-3 Connect test leads in series with the load under measurement.
7-4-4 You can get reading from LCD. The polarity of the red lead connection will be indicated along with the current value.
NOTE:
1.
When the value scale to be measured is unknown beforehand, set the range selector at the highest position.
2.
When only the figure'1' or '-1' is displayed, it indicates over-range situation and the higher range has to be selected.
3.
"
" means the socket mA's maximum current is 200mA and 10A's maximum current is 10A, over current will destroy the fuse.
Since 10A is not fused, the measuring time should be less than 1 second to prevent precision from affecting by circuit heating.
" besides the input jack which shows that the input voltage or current should be within the specified
" range position.
" range position.
", the battery should be replaced at this time to
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