Teledyne Deltaflow DF180, Operation And Maintenance Manual, Page: 29 / 42

January, 2018
Page 29
4.4 Administrator
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.
This screen displays firmware version, communication status, and enables the user to perform several
functions involving sending to or receiving information from the DeltaFlow controller.
5 Operation
This section outlines details and procedures associated with startup and daily operation of the
Deltaflow. After physical installation is complete the Deltaflow configuration should be examined to
ensure it is accurate for the application. This includes reviewing all the screens in the web interface
which is the main way of interfacing with the DeltaFlow, see section 4.
5.1 Calibration and Adjustment
Start a calibration check by pressing the “Cal Check” button on the front of the instrument panel. The
cal check will not begin until the top of the next minute according to the Deltaflow controller clock. The
cal check will take approximately 4 minutes. After it is complete, check the
Data: Calibrations screen in
the web interface to verify results are acceptable. New from the factory the zero (4mA) and full scale
(20mA) outputs should not need adjustment. Overtime they may drift; if needed they can be adjusted
on the front of the DP transmitter via tamper proof knobs. A key for the knobs is provided.
If the upscale reference set point needs adjustment, use a flat head screwdriver to adjust the set screw
of the precision DP switch located at the end of the spring housing on the switch. If an adjustment is
made, perform three calibrations and enter the average result of the upscale check as the new upscale
reference. Tee fittings are located directly under the sample filters to enable the user to hookup an
incline water manometer to the Deltaflow to verify absolute accuracy, if desired.