Keysight Technologies N6700 - Page 78

4 Operating the Power System
78 Keysight N6700 User’s Guide
Simultaneous Voltage and Current Measurements
Some models have simultaneous voltage and current measurement
capability (Refer to Chapter 1, “Model Differences”). In this case BOTH
voltage and current can be acquired on any measurement.
Front Panel:
SCPI Command:
Not available. Select the measurement function:
SENS:FUNC:VOLT ON,(@1)
SENS:FUNC:CURR ON,(@1)
Initiate and trigger the measurement
system:
INIT:ACQ (@1)
TRIG:ACQ (@1)
Fetch the voltage and current
measurement:
FETC:VOLT? (@1)
FETC:CURR? (@1)
Auxiliary Voltage Measurements
Keysight Models N6781A and N6785A have an auxiliary voltage
measurement input, whose primary use is for battery voltage rundown
measurements. It may also be suitable for other applications including
general purpose DC voltage measurements between +/-20 VDC. The
auxiliary voltage measurement input is isolated from other commons. It
has a bandwidth of about 2 kHz. It has one input range: −20 to +20 VDC.
Auxiliary voltage measurements cannot be made along with output
voltage measurements. When the auxiliary voltage measurement input is
selected, the voltage measurement input will be switched to the Aux
Voltage inputs instead of the normal + and − sense terminals.
To enable auxiliary voltage measurements:
Front Panel:
SCPI Command:
Select
Measure\Input
.
Select Auxiliary and press Select.
Select Main to reconnect the
voltage measurement input to
the output terminals.
To enable auxiliary measurements:
SENS:FUNC:VOLT:INP AUX,(@1)
Take the auxiliary voltage
measurement:
MEAS:VOLT? (@1)
NOTE
When the auxiliary voltage measurement terminals are left unconnected,
the front panel meter will indicate a voltage reading of approximately
1.6V. This is a normal indication which does not affect the voltage
measurement once the auxiliary measurement terminals are connected.