Keysight U1610A - Figure 1-10 Channel-To-Channel Isolation at CAT III 300 V; Floating Measurement with Isolated Probes at CAT III 600 V

1 Getting Started
34 Keysight U1610/20A User’s Guide
Floating measurement with isolated probes at CAT III 600 V
The differential signal in each channel is referenced to a reference point that is not
connected to the earth ground. This helps in eliminating ground loop errors.
Figure 1-10 Channel-to-channel isolation at CAT III 300 V
The maximum input voltage on each BNC input is CAT III 300 V (referenced to
non-earth grounding and referenced to earth-grounding). If you are measuring an
input floating voltage of CAT III 600 V with a 10:1 probe, the signal will be
attenuated 10 times. The actual voltage flow into the BNC input will be CAT III
60 V, which is within the maximum input voltage rating.
NOTE
Before performing floating measurements with the handheld scope, ensure that
the measured signal is within the voltage range specified on the probe and input
terminals, and the floating voltage from any terminal to ground as shown in
Figure 1-10.
CAT III 600 V
input signal
Float voltage
CAT III 600 V
10:1 Probe
CAT III 300 V
input signal
Maximum BNC input voltage
Float voltage
CAT III 300 V