The Testec is an active differential oscilloscope probe that enables a conventional oscilloscope to display and measure in-circuit waveforms that are referenced to high common-mode voltages. It is capable of safely measuring differential voltages up to ±1000VAC and 1400VAC/DC. It supports bandwidths up to 25MHz.
This oscilloscope probe can measure signals below 70V by selecting the attenuation ration to 1:20 to obtain higher resolution and less noise ratio. When measuring signals up to 1400V dc change the attenuation ratio to 1:200.
Features and Benefits
Bandwidth is DC to 25MHz Attenuation is 1:20/1:200 Rise time is 14ns Differential mode input voltage is 1:20 ±140V (DC+peak AC) or 140Vrms 1:200 ±1400V (DC+peak AC) or 1000Vrms Input impedance is 4Mohm ll5.5pF each side to ground Common mode voltage range is 1:20 and 1:200 ±1400V (DC+peak AC) or 1000Vrms Non-destructive Max input voltage is 1:20 and 1:200 ±1400V (DC+peak AC) or 1000Vrms CMRR (typical) is -80dB at 50Hz and -60dB at 20kHz Offset (typical) is <±5mV Noise (typical) is 0.7mVRMS 4 x AA batteries Dimensions (L x W x H): 170 x 63 x 21 mm Length: BNC cable 950mm, Input leads 450mm
Applications
Oscilloscope probes are used with oscilloscopes to enable the signals on the circuits being tested to be connected to the oscilloscope so that signals can be measured. These oscilloscope probes can be found in:
Performance conversion Inverters Motor speed indicators Switch mode power supplies
