Using Measure Mode; Measuring Electrical Parameters (Upper Display); Current Measurement With Loop Power - Fluke 726 User Manual

Multifunction process calibrator

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726

Users Manual

Using Measure Mode

To measure the current or voltage output of a transmitter,

or to measure the output of a 700 Series pressure

module, use the upper display and proceed as follows:

Press

to select volts or current. LOOP should

not be on.

Connect the leads as shown in Figure 7.

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:

Connect the Calibrator to the transmitter current loop

terminals as shown in Figure 8.

Press

while the Calibrator is in current

measurement mode. LOOP appears and an internal

24 V loop supply turns on.

When HART resistor mode is selected, the

250

resistor is turned on both mA channels.

Note

Figure 7. Measuring Voltage and Current Output

bec42f.eps

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