Fluke 725 Instrukcja Użytkownika Pobierz pdf (Strona 27)

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

LOO P

V mA

TC RTD

100%

25%

RECALL

ZERO

MEAS

SOURCE

STORE

SETUP

MULTIFUNCTION CALIBRATOR

725

Black

Red

sh42f.eps

Figure 7. Measuring Voltage and Current Output

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Fluke 725 Instrukcja Użytkownika Strona 27