Source-Measure Concepts 5-5
Over the bus, use the appropriate SCPI commands to determine the measurement range and
the compliance setting. Once those parameters are known, compare them as previously
explained to determine the compliance in effect.
When sourcing current, use the following commands to acquire the measurement range and
the compliance setting:
VOLTage:RANGe? Query voltage measurement range.
VOLTage:PROTection? Query voltage compliance limit.
When sourcing voltage, use the following commands to acquire the measurement range and
the compliance setting:
CURRent:RANGe? Query current measurement range.
CURRent:PROTection? Query current compliance limit.
Overheating protection
Proper ventilation is required to keep the SourceMeter from overheating. See the
“CAUTION” located at the beginning of Section 3 for details on maintaining proper
ventilation.
The SourceMeter has an over-temperature protection circuit that will turn the output off in
the event that the instrument overheats. If the output trips due to overheating, a message indi-
cating this condition will be displayed. You will not be able to turn the output back on until the
instrument cools down.
Table 5-2
Compliance examples
Compliance setting Measurement range Actual compliance
Display message Setting Display message Range Value Type
Cmpl: 150.000 V
Cmpl: 150.000 V
Cmpl: 150.000 V
Cmpl: 075.000 mA
Cmpl: 075.000 mA
Cmpl: 075.000 mA
150V
150V
150V
75mA
75mA
75mA
---.---V
--.----V
---.---mV
---.---mA
--.---mA
-.-----mA
200V
20V
200mV
100mA
10mA
1mA
150V
21V
210mV
75mA
10.5mA
1.05mA
Real
Range
Range
Real
Range
Range