BASIC OPERATION
52
When the load resistor increases, the slope of the
load line decreases. When the resistor increases to
infinity (open circuit), the actual output voltage of
the GSM is 50V and the output current is 0mA. When
the load resistance decreases, the slope of the load
line increases. When the resistance decreases to 0
(short circuit), the actual output voltage of the GSM
is 0V and the output current is 50mA.
When the GSM is set as I-Source, it can measure
current at the same time, and when it is set as V-
Source, it can measure voltage at the same time.
Measurement range is the same as source range.
When in compliance, the measurement reading value
is not the programmed source value, but the actual
output source value. Press the Edit/Lock key to
move the cursor to the parameter setting area, press 0
key to display power value, press 1 key to display
resistance value, press 4 key to display current value,
and press 7 key to display voltage value.
For example, connect 1kΩ resistor to GSM, as shown
in the figure below, GSM is programmed to source
2.1V, the output current should be 2.1mA. Since the
current compliance value is set to 105uA, the output
current is limited to 105uA. The actual output
voltage is 1.04971V.
