MasterCraft 52-0052-2 Instruction Manual page 5

8. Data Hold & Backlight Button
Use to hold a reading. When this button is pressed, the data being displayed will
be frozen on the LCD and "HOLD" will appear. Changes in the input signals will
not change the display. It can be used in all measurements modes. Press the
button again to release this function and the "HOLD" will disappear.
Press and hold this to turn the backlight on. When the backlight is on, "HOLD"
will appear on the LCD, press this button once to cancel the "HOLD" feature. To
turn off the backlight, press and hold this button until the backlight goes off. The
"HOLD" will also appear on the LCD, press this button once to cancel.
9. / / A C/DC Hz/% Button
Ω Ω Ω Ω
In the OHM / mode, use this button to choose between continuity check or
diode test or resistance test.
In the A AC and D DC mode, use this button to choose between A AC and D DC
ranges.
In the FREQ mode, use this button to choose between frequency test and duty
cycle test.
10. Relative Button
Use this button to measure the different (relative) value between parts and the
reference.
For example, during the measurement of a +5 V standard DC voltage, press this
button once, the value on the LCD will be changed from +5 V to 0 V.
Disconnect the test lead from the source (-5 V will be displayed on the LCD).
If you measure a +4.5 V DC source, the LCD will display -0.5 V. This is indicating
that the value you measured is 0.5 V lower than the standard value.
2