MA640-en-GB_V2.4 5/15
8
Frequency and Duty Ratio Measurements
1.
Rotate the function switch to the
Hz
Position.
2. Press
the
MODE
button to select AC Voltage
3. Press
the
HZ %
button to select HZ
4.
Insert the black test lead banana plug into the negative
COM
jack.
Insert the red test lead banana plug into the positive
Hz
jack.
5.
Touch the black test probe tip to one side of the device.
Touch the red test probe tip to the other side of the device.
6.
Read the Frequency value on the display.
7. Press
the
HZ %
button to select %
8.
Read the Duty Ratio on the display.
Type K Temperature Measurements
1.
Rotate the function switch to the
Temp
position.
2.
Press the MODE button to select °F or °C.
3. Insert the Temperature Probe into the input jacks.
4. Place the temperature probe tip where needed.
5. Read the temperature on the display.
Note:
In case of an open input or a temperature overrange, the meter will display
“
OL”
.
Data Hold
To freeze the LCD reading, press the
HOLD
button. While data hold is active, the
HOLD
icon
appears on the LCD. Press the
HOLD
button again to return to normal operation.
MAX/MIN
1. Press
the
MAX/MIN
button to activate the MAX/MIN recording mode. The display icon "
MAX
"
will appear. The meter will begins recording and displaying the maximum value measured.
2. Press
the
MAX/MIN
button and “
MIN
” will appear. The meter will display the minimum value
measured during the recording session.
3. To exit MAX/MIN mode press and hold the
MAX/MIN
button for 2 seconds.
