Aalborg DPC - Submenu Alarms and Diagnostic

69
To start the AP sensor Tare procedure locally using the OLED/joystick interface, select “Sen-
sor Zero Calibration” from the main menu, then navigate to the “Start AP Auto Tare” menu
selection. The “Start Absolute Pressure Senor Tare” screen will appear (see Figure 40).
Start AP Auto Tare:
NO
YES
Open Ports to Ambient
DO YOU WANT
START
AP TARE?
Figure 40: Start AP (Absolute Pressure) Sensor Tare
To start the Absolute Pressure sensor tare, select the “YES” option and push the joystick
ENT button. The following screen will appear:
Enter Ambient Press.
According Refer. Std.
14.696 PSIA
Make Sure Inst. Ports
Are Open to
Atmosphere
Figure 41: Entering Ambient Pressure from Reference Standard
Enter ambient pressure reading according to the reference standard. Once this is done, press
the joystick ENT button. The instrument will perform an AP sensor tare process. If it is suc-
cessful, the screen will prompt the user with a confi rmation message.
6.4.17 Submenu “Alarms and Diagnostic”
The DPC is equipped with Alarm and Diagnostics Events registers. These are available via
digital interface and an optional OLED screen indication. The Alarm Event Register monitors
non-critical alarm events related to the instrument settings and process variables. The Diag-
nostic Event Register monitors critical diagnostic events related to instrument performance
and peripheral hardware conditions.