User Manual

3-4 Basic Source-Measure Operation 2400 Series SourceMeter
®
User’s Manual
Operation overview
Source-measure capabilities
From the front panel, the SourceMeter can be configured to perform the following
operations:
• Source voltage — Display current and/or voltage measurement
• Source current — Display voltage and/or current measurement
• Measure resistance — Display voltage or current component of measure-
ment
• Measure only (V or I) — Display voltage or current measurement
Voltage and Current — Table 3-1 lists the source and measure limits for the volt-
age and current functions.
The full range of operation is explained in Section 6, “Overheating protection” and
“Operating boundaries.”
NOTE Output transient recovery — The time required for the V-source to
recover to its original value (within 0.1% plus load regulation errors) after
a step change in load current is <250µsec. This does not include the
response time of autoranging or the second order effects on loads that
are not purely resistive.
Load regulation — The voltage specification for V-source mode load
changes is 0.01% +1mV. This means that on the 200mV range, the load
current can be changed from zero to full scale with less than 1.02mV of
error. Calculation:
error = (0.01% x 0.2V) + 1mV = 1.02mV
Assuming a 0 to 1A change in current, the output impedance equates to
1.02m
Ω (1.02mV/1A = 1.02m Ω ). This level can only be achieved using 4-
wire remote sensing.