Revision 1
STT700 Series HART/DE Option User’s Manual
Page 67
6.4 Analog Output Signal Calibration
The transmitter analog output can be calibrated at its zero (0) and 100% levels using a constant current
source mode. The transmitter does not have to be removed from service for the analog output signal
calibration procedure.
The following procedure provides the steps for calibrating the output signal for a transmitter in the
analog mode. The procedure is similar for a transmitter in the DE mode, but the MC Toolkit is
required to read the output in percent in place of current or voltage.
Figure 10 illustrates the test setup
for the analog output calibration process.
Figure 10
– Analog Output Calibration Test Setup
1.
Verify the integrity of the electrical components in the output current loop.
2.
Connect the MC Toolkit as indicated, and establish communication with the transmitter. For
these procedures, values of components in the current loop are not critical, if they support
reliable communication between the transmitter and the MC Toolkit.
3.
Start the MC Toolkit application, and establish communication with the transmitter.
4.
In the Output Calibration box, select the
Loop Test
button to display the LOOP TEST box.
5.
Select the desired constant-level Output:
0
%
,
100 %
, or
Other
(any of
0 % - 100 %)
.
