Fluke 725 - Manual (Page 27)

Using Measure Mode
17
Using Measure Mode
Measuring Electrical Parameters (Upper Display)
To measure the current or voltage output of a transmitter,
or to measure the output of a pressure instrument, use the
upper display and proceed as follows:
1. Press
l
to select volts or current. LOOP should
not be on.
2. Connect the leads as shown in Figure 7.
Current Measurement with Loop Power
The loop power function activates a 24 V supply in series
with the current measuring circuit, allowing you to test a
transmitter when it is disconnected from plant wiring. To
measure current with loop power, proceed as follows:
1. Connect the calibrator to the transmitter current loop
terminals as shown in Figure 8.
2. Press
l
while the calibrator is in current
measurement mode. LOOP appears and an internal
24 V loop supply turns on.
V mA
LOOP
V mA
TC RTD ˚ C ˚ F
Hz
100%
25%
25%
RECALL
ZERO
MEAS
SOURCE
STORE
SETUP
0%
MULTIFUNCTION CALIBRATOR 725
Black
Red
sh42f.eps
Figure 7. Measuring Voltage and Current Output