Vertical Scale On Oscilloscope; External Power Source; Using A Dmm - Elditest CT4079 Mode D'emploi

6. Connect the clips to the circuit to be tested.
2.

Vertical Scale on Oscilloscope

The actual vertical scale of the oscilloscope is equal to the
attenuation factor multiplied by the range of vertical scale
selected on the oscilloscope. For example, with the probe on
factor 200x, the oscilloscope on 0.5 V/div, the real vertical scale
is 200 x 0.5 = 100 V/div. With the probe on 2000x, the real
vertical scale is 2000 x 0.5 = 1000 V/div. These values apply
when the oscilloscope is set to 50 Ω input. When the oscilloscope
is set to 1 MΩ input, the actual vertical scale will be halved: 50 V/
div for the 200x probe setting and 500 V/div for the 2000x probe
setting. See the chart below.
Probe
Output
Impedance
50 Ω
50 Ω
50 Ω
50 Ω
3.

External Power Source

Power consumption of the probe is about 200 mA, thus it is
not suited for battery usage. Use the supplied adapter only.
CAUTION: The probe may be damaged when the input power
exceeds 12 VDC.
4.

Using a DMM

Using a DMM rather than an oscilloscope can significantly
increase your accuracy. Use the CT2944-50 plus the CT3956
converter to use the probe with a DMM.
800-572-1028
d Quality Products Online at:
Vertical Scale on Oscilloscope
Scope Input Probe
Impedance Attenuation
Setting
50 Ω 200x
50 Ω 2000x
1 MΩ 200x
1 MΩ 2000x
GlobalTestSupply
www.
Vertical Scale
Reading on the
Oscilloscope
0.5 V/div
0.5 V/div
0.5 V/div
0.5 V/div
caltestelectronics.com
Actual Vertical
Scale of the
Oscilloscope
100 V/div
1000 V/div
50 V/div
500 V/div
.com
sales@GlobalTestSupply.c
7