Using Resistance-Temperature Detectors (Rtds) - Fluke 725Ex User Manual

Using Resistance-Temperature Detectors (RTDs)

The Calibrator accepts RTD types shown in Table 6. RTDs
are characterized by their resistance at 0 °C (32 °F), which
is called the "ice point" or R
Ω. The Calibrator accepts RTD measurement inputs in
two-, three-, or four-wire connections, with the
three-wire connection the most common. A four-wire
configuration provides the highest measurement precision,
and two-wire provides the lowest measurement precision.
. The most common R is 100
0 0
To measure temperature using an RTD input, proceed as
follows:
M
1. If necessary, press
R
2. Press for the RTD display. If desired, continue
pressing this key to select the desired RTD type.
X W
3. Press or to select a 2-, 3-, or 4- wire
connection.
4. Attach the RTD to input terminals as shown in
Figure 11.
If necessary, toggle between °C or °F temperature
5.
D
units by pressing
Using Measure Mode
for MEASURE mode.
.
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