Calibrator
Connect the Calibrator to a DUT
31
To connect the Calibrator to a DUT:
1. If the Calibrator is turned on, push R to remove the output from the Calibrator terminals.
2. Make the connections to the DUT by selecting the appropriate figure from Table 12 For
capacitance outputs, null out stray capacitance by connecting the test leads to the DUT, routing
them (but not connecting) to the Calibrator on a non-conductive surface. Null out the reading on the
DUT using rel, offset, or null, whichever method applies, and then connect the test leads to the
Calibrator.
Figure 3. DUT Connection: Impedance (Four-Wire Compensation)
Table 12. DUT Connections
Calibrator Output Figure Reference
Resistance
Capacitance
Inductance (not available on 5540A)
DC or AC Voltage
DC or AC Current <3 A
DC or AC Current ≤3 A
RTD Simulation
Thermocouple Simulation
3 Impedance - four-wire compensated
4 Impedance - two-wire compensated
5 Impedance - compensation off
6 DC Voltage/AC Voltage
7 DC Current/AC Current <3 A
8 DC Current/AC Current ≥3 A
9 Temperature (RTD) - three-terminal connection
10 Temperature (Thermocouple)
See the discussion in Four-Wire versus Two-Wire Connections.
HI
LO
A
HI
LO
INPUT
SENSE
4-WIRE
:
DUT
Calibrator
DUT
SENSE
SOURCE
SOURCE
SENSE
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