Low amps clamp

Hi, can you use a low amps clamp to your snap on triton d8 oscilloscope for relative compression testing even though the clamp says up to 60amps?

Yes, as long as the jaws close completely around the battery cable, you can set the scope to voltage instead of using the amp clamp setting.
It may take some trial and error to find the best voltage and time scale settings to get the waveform on the screen, but this is how I generally capture relative compression waveforms on the Verus Edge with a low amp probe.

Alternatively, a Relative Compression test can, also, be performed by using voltage instead of current. Voltage and Current are, directly, proportional. As current goes up, voltage goes down. Graphing either one on a screen will produce the same waveform with one notable exception. Because voltage goes down as current goes up, the voltage waveform will be upside-down when compared to a Current waveform. Using the invert function of your scope will flip the Voltage waveform over so that it will appear as a Current waveform would. If you your scope does not have an invert function, you can flip the waveform by reversing the test leads on the battery. i.e. Connecting the positive lead to the negative battery post and connecting the negative lead to the positive battery post. This will invert the voltage waveform, too. 

My preferred method of performing a Relative Compression test is to use Voltage, rather than Current. In my opinion, it is much easier to measure Battery Voltage than it is to get amp clamp around the Battery Cable. 

To do a Relative Compression test using Battery Voltage:
1. Set your scope to "AC Coupling".
2. Set the voltage scale to 2 volts. 
3. Enable "Invert". 

AC Coupling will "reset" the static 12.6v battery voltage so that it will be displayed on the scope as 0 volts. This will allow you to "zoom in" on only the changing voltage by using a 2-Volt range.