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725
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, in-line blades spaced 7.9 mm [0.312 in]
center to center). 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.
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 temperature you want by pressing
W
Y
keys. Press
edit.
32
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M
for SOURCE mode.
X
Z
and
to select a different digit to
Fluke-Direct
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 temperature you want by pressing
W
keys. Press
edit.
and
4.
If the 725 display indicates ExI HI, the excitation
current from your device under test exceeds the limits
of the 725.
M
for SOURCE mode.
for the RTD display.
Note
Y
Z
and
to select a different digit to
.ca
1.800.561.8187
X
and
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