Mastech ms8217, User Manual

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3.2.6 Frequency and Duty Cycle measurement
Do not measure Frequency on high voltage
(>1000V) to avoid electrical shock hazard and/or
damage to the instrument.
Warning
Frequency is the number of cycles a voltage or current
signal completes each second.
The Meter can measure Frequency or Duty Cycle while
making either an AC Voltage or AC Current measurement.
Note:
In noisy environment, it is preferable to use shield cable
for measuring small signal.
To measure frequency or Duty Cycle:
1. With the meter in the desired function (AC Voltage or
AC Current), press the
Hz % key.
2. Read the frequency of the AC signal on the display.
3.To make a duty cycle measurement, press the
Hz %
key again.
4. Read the percent of duty cycle on the display.
3.2.7 Temperature measurement
To avoid electrical shock and/or damage to the
instrument, do not apply more than 1000V DC or
1000V AC rms between the Temp
terminal and the
COM terminal.
To avoid electrical shock, do not use this
instrument when voltages at the measurement
surface exceed 60V dc or 24V rms. AC.
To avoid damage or burns. Do not make
temperature measurements in microwave ovens.
Warning
3.2.8 Current measurement
To avoid damage to the Meter or injury if the fuse
blows, never attempt an in-circuit current
measurement where the open-circuit potential to
earth is greater than 250V.
To avoid damage to the meter, check the meter's
fuse before proceeding. Use the proper terminals,
function, and range for your measurement. Never
place the probes in parallel with a circuit or
component when the leads are plugged into the
current terminals.
Warning
To measure temperature:
1. Set the rotary switch to
Temp range and the LCD will
show the current environment temperature.
2. Insert “K” type thermocouples into the COM terminal
and
Temp terminal (or you can insert it by using Multi
Function Socket),Takings care to observe the
correct polarity.
3. Touch the object with the thermocouple probe for
measurement.
4. Read the stable reading from LCD.
Current is the flow of electrons through a conductor.
The Meter's current ranges are 400.0µA, 4000µA,
40.00mA, 400.0mA, 4.000A and 10.00A.
DIGITAL MULTIMETER DIGITAL MULTIMETER