Operating Instruction; Voltage Measurement - Mastech MS8221 User Manual

400℃ to 1000℃
- Overload Protection: 250V DC or rms AC
3.2.10 Battery Test (Only MS8221D)
Range
1.5V
9V
Overload protection: 1.5V: F250mA/250V fuse

4. OPERATING INSTRUCTION

4.1 Voltage measurement

- Set rotary switch to the desired V
- Connect the black and red test leads to the COM and
V terminals respectively.
- Connect the test leads to the circuit being measured
- Read the displayed value. The polarity of red test lead
connection will be indicated when making a DCV
measurement.
- When only the figure "1" is displayed, it indicates
overrange situation and the higher range has to be
selected.
To avoid electrical shock and/or damage to
the instrument, do not attempt to take any
voltage measurement that might exceeds
1000Vdc or 750Vac rms. Do not apply more
than 1000Vdc or 750Vac rms between the
common terminal and the earth ground.
Accuracy
- 9 -
±0.8%±1
9V: 250Vdc or 250Vac rms
±2.0%±3
Discharge current
100mA
6mA
or V~ range.