Major tech MT874 Instrukcja obsługi - Strona 11

Przeglądaj online lub pobierz pdf Instrukcja obsługi dla Przyrządy pomiarowe Major tech MT874. Major tech MT874 20 stron. 600v ac/dc trms multimeter

6. Operating Instructions

WARNING: Risk of electrocution. High-voltage circuits, both AC and DC, are

very dangerous and should be measured with great care.

• Always turn the function switch to the OFF Position when the meter is not in

use.

• If "OL" appears in the display during a measurement, the value exceeds the

range you have selected. Change to a higher range.

NOTE: On some low AC and DC voltage ranges, with the test leads not

connected to a device, the display may show a random, changing reading. This

is normal and is caused by the high-input sensitivity. The reading will stabilize

and give a proper measurement when connected to a circuit.

CAUTION: Do not measure DC voltages if a motor on the circuit is being

switched ON or OFF. Large voltage surges may occur that can damage the

meter.

1. Set the function switch to

the highest VDC Position.

2. Insert the black test lead

banana plug into the

negative COM Input Jack;

Insert the red test lead

banana plug into the

Positive Input Jack.

3. Touch the black test probe

tip to the negative side of

the circuit; Touch the red

test probe tip to the positive

side of the circuit.

4. Read the voltage in the

display.

5. Reset the function switch to

successively lower VDC

Position to obtain a higher

resolution reading, the

display will indicate the

proper decimal point and

value.

6. If the polarity is reversed,

the display will show (-) minus before the value.