(...)
Forget about sense or no sense, I'm talking about the basic DC accuracy display of the power supply, which someone complained was not very good on the Rigol. I was just showing that it's no better on the Agilent.
Are you comparing specs of the E3631A versus the DP832? For the 'Annual Accuracy, 25+/- 5C' of the DP832, they seem to be almost the same as to those of the E3631A, once you include the data for the third, lower voltage rail.
The only(!) difference in their line and load regulation seem to be Rigol spelling 'line' as 'linear'. I will go as far as saying these two PSUs are
amazingly similar in their specs, given the nearly twenty years of progress we have witnessed since the E3631A hit the market.
Am I missing something here?
Annually over 12 months, 25+/-5C,
Agilent E3631A:
Programming:
+6V: Voltage 0.1% + 5mV, Current 0.2% +
10mA
+25V: Voltage 0.05% + 20mV, Current 0.15% + 4mA
-25V: Voltage 0.05% + 20mV, Current 0.15% + 4mA
Readback:
+6V: Voltage 0.1% + 5mV, Current
0.2% + 10mA+25V: Voltage 0.05% + 10mV, Current 0.15% + 4mA
-25V: Voltage 0.05% + 10mV, Current 0.15% + 4mA
----
Annually over 12 months, 25+/-5C,
Rigol DP832/A:
Programming:
+5V: Voltage 0.1% + 5mV, Current 0.2% + 5mA
+30V: Voltage 0.05% + 20mV, Current
0.2% + 5mA-30: Voltage 0.05% + 20mV, Current
0.2% + 5mAReadback:
+5V: Voltage 0.1% + 5mV, Current 0.15% + 5mA
+30V: Voltage 0.05% + 10mV, Current 0.15% +
5mA
-30V: Voltage 0.05% + 10mV, Current 0.15% +
5mA