Fluke 726 - Using Source Mode; Sourcing 4 to 20 mA; Simulating a 4- to 20-mA Transmitter

726
Users Manual
30
Using Source Mode
In SOURCE mode, the Calibrator:
• generates calibrated signals for testing and
calibrating process instruments
• supplies voltages, currents, frequencies, and
resistances
• simulates the electrical output of RTD and
thermocouple temperature sensors
• measures gas pressure from an external source,
creating a calibrated pressure source.
Sourcing 4 to 20 mA
To select the current sourcing mode, proceed as follows:
1. Connect the test leads in the mA terminals (left
column).
2. If necessary, press
M for SOURCE mode.
3. Press
V for current and enter the desired current
by pressing X,W,
Y, and Z.
Simulating a 4- to 20-mA Transmitter
Simulate is a special mode of operation in which the
Calibrator is connected into a loop in place of a
transmitter and supplies a known, settable test current.
Proceed as follows:
1. Connect the 24 V loop power source as shown in
Figure 14.
2. If necessary, press
M for SOURCE mode.
3. Press
V until both mA and SIM display.
4. Enter the desired current by pressing X,W,
Y, and
Z.