Fluke 707Ex - Simulating a Transmitter Output; Auto Ramping the mA Output

mA Calibrator
Simulating a Transmitter
7
Simulating a Transmitter
When simulating the operation of a transmitter, the
Calibrator regulates the loop current to a known value
selected by you.
A 12 V to 28 V loop supply must be available. Insert the
test leads as shown below.
AQV05F.EPS
Auto Ramping the mA Output
Auto ramping allows you to continuously apply a varying
current from the Calibrator to a passive (sourcing) or
active (simulate) loop. Your hands remain free to test the
transmitter’s response.
Press
B
+
C
simultaneously to enter the Auto Ramp
mode and step to a ramp type.
The Calibrator applies or controls a continuously repeating
mA signal over a 0-20 mA or a 4-20 mA span in one of
three ramp types:
Slow (e) 0 % to 100 % to 0 % smooth ramp over 40 sec.
Fast (g) 0 % to 100 % to 0 % smooth ramp over 15 sec.
Step (f) 0 % to 100 % to 0 % stair-step ramp in 25 %
steps, pausing 5 sec at each step.
To exit, press any pushbutton or turn the Calibrator off.