Fluke PM3370B Musical Instrument User Manual


 
4 - 18 HOW TO USE THE INSTRUMENT
VERTICAL CH1+CH2
- Using two probes, connect the Probe Adjust signal to Ch1 and Ch2.
-Press AUTOSET.
- Both Ch1 and Ch2 are now displayed.
- Adjust POS and AMPL to get a display as illustrated on the left below.
- Press the CH1+CH2 key.
In the analog mode, a third trace will appear on the screen. This trace has twice
the amplitude of the Probe Adjust signal. The position of the third trace is affected
by the position controls of both Ch1 and Ch2.
The display mode is indicated in the screen as ’1+2’.
- Press the ANALOG key to switch to the Digital mode.
Observe that switching to the digital mode turns off the third trace. The ’1+2’
indication disappears.
- Press the CH1+CH2 key once again.
Observe that in the digital mode the (CH1+CH2) trace can be used as well.
Simultaneous display of both channels together with the sum of both channels is
not possible in the digital mode.
- Press the ANALOG key to return to the analog mode.
ST5970
CH1+CH2
CH1
CH2
500mV
500mV
CHP
MTB
200µs
ch1
1-
2-
CH1
CH2
500mV
500mV
CHP
MTB
200µs
ch1
2-
1-
1+2
ST6720
CH1+CH2
CH1
CH2
500mV
500mV
1+2
MTB
200µs
ch1
CH1
CH2
500mV
500mV
ALT
MTB
200µs
ch1
2-
1-