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Chapter 8: Digital Multimeter (Dmm)
To use the Celltron ULTRA multimeter, press the ARROW keys to highlight the Dmm icon in the Main
Menu, and press ENTER. Press the ARROW keys to highlight one of the four meters in the Dmm
Menu, and press ENTER to select. Press the BACK key when fi nished.
DC voltmeter
The DC voltmeter measures from real-time DC voltage from 0 to 25 Vdc. The voltmeter displays the
voltage as a value with an analog meter graphic.
AC voltmeter
The AC voltmeter measures real-time AC voltage from 0 to 10 Vac. The voltmeter displays millivolts
as a value with an analog meter graphic.
Scope
The scope provides a real-time voltage trace with a range of 0 to 25 Vdc. Scope options include:
1. Auto setup
Press 1 to enable the scope to autorange.
2. Run/hold
Press 2 to toggle between RUN mode (measure and display signal) or HOLD mode (freeze
signal).
3. Time Display
Press 3 to place the scope in time mode. The horizontal axis is in seconds and the vertical axis
is in volts.
4. FFT display
Press 4 to place the scope in frequency mode. The horizontal axis is in hertz and the vertical axis
is in volts.
Current
Connect to the jar posts to estimate the AC ripple current through the jar.
Chapter 8: Digital Multimeter (Dmm) Celltron ULTRA
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