www.miinet.com Moore Industries-International, Inc.
- 42 -
User’s Manual
224-790-00K
May 2018
Programmable Limit Alarm Trips
SPA
2
SECTION 4
Trimming the Analog Output (-AO Option)
Figure 4.12. gives an overview of the Analog Output Trimming menu.
Output trimming increases the measurement accuracy of the SPA
2
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 4.13 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 0.000 (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 the value that must be trimmed in order to adjust to the desired level.
3. Press SELECT at “TRIM FULL” and repeat Step 2. Press SELECT. “FCTRY TRIM” is shown
on the display.
4. If you wish to disable 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 (this figure must fall within your sensor
configuration range value) and press SELECT. “EXIT TRIM” appears; press SELECT.
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