Simulating Thermocouples; Simulating Rtds - Fluke 725Ex User Manual

725Ex
Users Manual

Simulating Thermocouples

Connect the Calibrator TC input/output to the instrument
under test with thermocouple wire and the appropriate
thermocouple mini-connector (polarized thermocouple plug
with flat, inline blades spaced 7.9 mm [0.312 in] center to
center).
WCaution
One pin is wider than the other. Do not try to force
a miniplug in the wrong polarization.
Figure 16 shows this connection. Proceed as follows to
simulate a thermocouple:
1. Attach the thermocouple leads to the appropriate TC
miniplug, then to the TC input/output as shown in
Figure 16.
M
2. If necessary, press
T
3. Press for the TC display. If desired, continue
pressing this key to select the desired thermocouple
type.
4. Enter the desired temperature by pressing
Y Z
keys. Press and to select a different digit to edit.
34
for SOURCE mode.
X
and

Simulating RTDs

Connect the Calibrator to the instrument under test as
shown in Figure 17. Proceed as follows to simulate an
RTD:
1. If necessary, press
R
2. Press
Use the 3W and 4W terminals for measurement
only, not for simulation. The Calibrator simulates
a 2-wire RTD at its front panel. To connect to a 3-
wire or 4-wire transmitter, use the stacking cables
to provide the extra wires. See Figure 17.
3. Enter the desired temperature by pressing
keys. Press
W
M
for SOURCE mode.
for the RTD display.
Note
Y Z
and to select a different digit to edit.
X W
and