ES51925
3000 Counts Smart DMM
3.4 VAHz function
When voltage or current measurement mode is selected, the VAHz funtion is
available. Push VAHz key to select this frequency measurement mode. The
frequency is measured by auto ranging. The maximum frequency range is
100kHz. The sensitivity of signal input is 10% full scale of voltage or current
mode typically.
Configuration
Range
FR1
FR2
FR3
3.000KHz
30.00KHz
100.0KHz
3.5 Back light function
When BKSEL is set to DGND or floating, push the BKLIT key to enable the back
light output driving ON/OFF. If the auto back light configuration is active, the
BKLIT becomes a control input for external light sensed circuit. Set to low for one
second to active the back light output driving. Set to high then the driving output is
inactive immediately.
BKSEL
DGND or floating
V-
Configuration
Normal back light function
Auto back light function
Ver 2.9
15
10/06/25
CYRUSTEK [ Cyrustek corporation ]
