Moore Industries THZ3 - Page 24

www.miinet.com Moore Industries-International, Inc.
- 24 -
User’s Manual
238-741-00K
May 2019
Moore industries-International, Inc.
Figure 2.12. Custom Calibration/AO Loop Current Test/Trim
Select the Custom Calibration/AO Loop Current Test/Trim option in the conguration menu as
shown in Figure 2.12.
The points that will be used for trimming will be the “AO Zero” and the “AO Full” that were
congured earlier. For my example these two points will be 4mA (AO Zero) and 20mA (AO Full).
In the “Output Trim” section of the Parameter screen Set Output to “Lower Output Range”. This
will set the instrument’s output to 4mA. Use your voltmeter to read the voltage drop across the
250Ω resistor and calculate the actual current going through the resistor.
Example: A voltage reading of 1.08v equates to 4.32mA (1.08V ÷ 250Ω = 4.32mA). Enter this
value in the Measured Output Current box and then push the “Trim” button.
Programmable Smart HART Temperature Transmitter
THZ
3
/ TDZ
3
SECTION 2