Use Autoscale
Use to automatically configure the oscilloscope to best display the input signals. 1 Press . You should see a waveform on the oscilloscope's display similar to this:
2 If you want to return to the oscilloscope settings that existed before, press Cancel. 3 If you want to display multi period waveforms, press Multi-Period to autoscale.4 If you want to show one period waveform only, press Single-Period to autoscale.5 If you only want to review specific active channels after pressing AutoScale, press Source to select All Channels or Only Displayed Channels.6 If you want to enable autorange to automatically setups the oscilloscope to best display the input signal whenever you change the volt/div or time/div, press AutoRange.
2 If you want to return to the oscilloscope settings that existed before, press Cancel. 3 If you want to display multi-period waveforms, press Multi-Period to autoscale.4 If you want to show one-period waveform only, press Single-Period to autoscale.5 If you only want to review specific active channels after pressing AutoScale, press Source to select All Channels or Only Displayed Channels.6 If you want to enable the auto range to automatically setups the oscilloscope to best display the input signal whenever you change the volt/div or time/div, press AutoRange.
How Autoscale Works
Auto Scale analyzes any waveforms present at each channel and at the external trigger input. This includes the digital channels if connected.
Auto Scale finds, turns on, and scales any channel with a repetitive waveform that has a frequency of at least 25 Hz, a duty cycle greater than 0.5%, and an amplitude of at least 10 mV peak-to-peak. Any channels where no signal is found are turned off.
The trigger source is selected by looking for the first valid waveform starting with an external trigger, then continuing with the lowest number analog channel up to the highest number analog channel, and finally (if digital probes are connected) the highest number digital channel.
During Autoscale, the delay is set to 0.0 seconds, the horizontal time/div (sweep speed) setting is a function of the input signal (about 2 periods of the triggered signal on the screen), and the triggering mode is set to Edge.
Compensate Passive Probes
Each oscilloscope passive probe must be compensated to match the input characteristics of the oscilloscope channel to which it is connected. A poorly compensated probe can introduce significant measurement errors. 1 Probe Check Safety When using the passive 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 the ground before you start any measurements.
2 Input the Probe Comp signal. Make sure the probe is connected securely to the front panel channel input BNC and to the Probe Comp terminal. 3 Press the channel key to which the probe is connected (, , etc.).4 In the Channel Menu, press Probe to select the Probe option that matches the attenuation factor of your probe. Make sure that the Attenuation switch on the probe matches the Probe option in theoscilloscope. Switch settings are 1X and 10X. When the Attenuation switch is set to 1X, theprobe limits the bandwidth of the oscilloscope to 6MHz. To use the full bandwidth of the oscilloscope, be sure to set the switch to 10X.
5 Press to recall the default oscilloscope setup. 6 Press to automatically configure the oscilloscope for the Probe Comp signal. If you see the waveform, but the square wave is not shaped correctly as shown below
use a nonmetallic tool (supplied with the probe) to adjust the trimmer capacitor on the
probe for the flattest pulse possible.
On the supplied probes, the trimmer capacitor is located on the probe BNC connector.
7 Connect probes to all other oscilloscope channels (channel 2 of a 2-channel
oscilloscope, or channels 2, 3, and 4 of a 4-channel oscilloscope).
8 Repeat the procedure for each channel.
Front Panel Overview
On the front panel, key refers to any key (button) you can press.
Softkey specifically refers to the five keys that are on the right side of the display. The
legend for these keys is directly on their left side on the display. Their functions change as
you navigate through the oscilloscope's menus.
For the following figure, refer to the numbered descriptions in the table that follows.