www.miinet.com Moore Industries-International, Inc.
- 38 -
User’s Manual
225-748-00P
August 2024
Programmable RTD, T/C, Ohms, mV and Potentiometer Safety Trip Alarm
STA
TPRG
SECTION 4
Trimming the Analog Output
(-AO Option)
Figure 4.9 gives an overview of the Analog Output Trimming menu.
Output trimming increases the measurement accuracy of the STA by calibrating its analog output
to the device that is receiving the output. This ensures that the instrument is being correctly
interpreted.
Connect the unit as shown in Figure 4.10 and allow five minutes for warm up and stabilization.
1. At the “TRIM AOUT” display, press SELECT.
2. “TRIM ZERO” appears. Press SELECT. The value 0.00 (mA or V depending on the set
up) is shown. While monitoring your reading on the meter, use the UP and DOWN buttons
to adjust the output to the desired level. Use the meter in the set up to monitor the output
as it is adjusted. When the output is set as desired, press SELECT.
Note: The value on the LCD is an adjustment to the AOUT ZERO or FULL value. This
adjustment is limited to 10% of span.
3. Press SELECT at “TRIM FULL” and repeat Step 2. Press SELECT. “FCTRY TRIM” is
shown on the display.
4. If you wish to reset the user-configured trimming values and use factory trimming, press
SELECT at the “FCTRY TRIM” screen. Use the UP and DOWN buttons to choose “YES”;
press SELECT. “TEST AOUT” is brought up on the display.
By selecting “NO” at the “FCTRY TRIM” screen, the user-configured trim values will be
used.
5. In order to check output performance and accuracy, you may want to perform an output
test. If you choose to enable this test, follow the instructions in Step 6. To bypass this
feature, use the DOWN button and scroll to “EXIT TRIM”.
6. To enable the analog output test, press SELECT at the “TEST AOUT” display. Use the
UP and DOWN buttons to set your output test value and press SELECT. “EXIT TRIM”
appears; press SELECT.
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