Teledyne Deltaflow DF180, Operation And Maintenance Manual, Page: 23 / 42

January, 2018
Page 23
Program Interrupt – Halts all daily automatic blowbacks, and QA checks such as calibrations and
interference checks. This is useful during a Relative Accuracy Test Audit (RATA) where a cal in the middle
of a RATA test run will invalidate the run.
Calibration – Starts a calibration sequence.
Interference Check – Starts an interference check sequence.
Impact Blowback – Activates all the valves necessary to continually purge the impact pressure line. This
will stay active until the button is pressed again.
Static Blowback – Activates all the valves necessary to continually purge the static pressure line. This
will stay active until the button is pressed again.
SV1, 2, 3, 4, 5, 6, 7 – Activates appropriate valve and any other valve necessary to prevent damage to
the instrumentation.
4.3 Configuration
This area of the web interface allows the user to program all the necessary parameters that are
application specific. All screens are configured at the factory based on the user completed installation
checklist, but can easily be changed by the user in the field.
IMPORTANT: ANY CHANGE TO THE CONFIGURATION MUST BE WRITTEN TO THE CONTROLLER BY GOING
TO THE ADMINISTATOR SCREEN AND PRESSING THE
WRITE CONFIGURATION TO DF180 BUTTON.
4.3.1 Configuration: General
See screenshot below for configurable parameters available. If engineering units need to be changed,
refresh the webpage then click
Create New Configuration.
All configuration screen will need to be
populated in the new engineering units. In order to ensure a long service life, periodic blowbacks are
required. The minimum available blowback interval is every 3
6 0 minutes. If a “Unit On” signal (e.g.
boiler on, flame on, etc.) is to be sent to the controller specify how this will be done by choosing the
appropriate option. Unit On status can be displayed on the main Data screen, or passed to the data
acquisition system via Modbus. Checking the “Hold last calculated data” box will cause any calculated
analog outputs to freeze at the last valid value when a QA check or blowback starts. In other words
calibration will not be reflected on the analog output. All other fields are self-explanatory.