Temperature Measurement; Current Measurement - Ferve F-1880 Manual Del Usuario

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.
The Meter can measure Frequency or Duty Cycle while making either an AC
Voltage or AC Current measurement.
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.
5. Set the rotary switch to the Hz range.
6. Insert the black and red test leads into the COM and Hz input terminals.
7. Connect the test leads tip in parallel with the circuit to be measured. And
don't touch any electrical conductors.
8. At frequency measuring status, press Hz % one time then meter enters duty
cycle measuring status, press it again then return to frequency measuring
status.
9. Read the result directly from the display.
NOTE:
In noisy environment, it is preferable to use shield cable for measuring small
signal

3.2.7 Temperature measurement

To avoid electrical shock and/or damage to the instrument, do not apply
more than 250Vdc or 220Vac rms between the ° C termi nal 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 measurement in
microwave ovens.
To measure temperature:
1. Set the rotary switch to ° C range and the LCD wi ll show the current
environment temperature.
2. Insert 'K' type thermocouples into the COM terminal and ° C 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.

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 1000V.