17
Front Panel (cont)
27
SCOPE OUT
The output connector for oscilloscope
calibration.
28
TC
The input/output jack for thermocouple
simulation during temperature meter
calibration, and thermocouple measurements.
29
20A
The high terminal for sourcing the high current
range (3A to 20A).
30
AUX
The source of ac and dc current outputs, the
second voltage output in dual voltage modes,
and ohms sense for two-wire and four-wire
compensated resistance and capacitance
measurements, and RTD simulation.
31
GUARD
Always internally connected to the internal
guard shield. See
G B.
32
NORMAL
The source of ac and dc voltage, ohms and
capacitance outputs, and Resistance
Temperature Detector (RTD) simulation.