Getting Started Guide 3.2.3 Observe the waveform Press the AUTO button and you should see within a few seconds a square wave of about 2V peak-to-peak at 1kHz in the display. Press the CH1 MENU button and remove Channel 1. Push the CH2 MENU button and repeat Step 2 and Step 3 to observe Channel 2. 3.3 Probe Examination 3.3.1 Safety When using the probe, keep your fingers behind the guard on the probe body to avoid electric shock. Do not touch metallic portions of the probe head while it is connected to a voltage source. Connect the probe to the oscilloscope and connect the ground terminal to ground before you start any measurements. DSO1000B(V )Series HandHeld Oscilloscope User Manual 5