Teledyne Deltaflow DF180, Operation And Maintenance Manual, Page: 27 / 42

January, 2018
Page 27
4.3.3.2 Configuration: Outputs: Analog
This screen assigns parameters and full scales to the two analog output channels available on the
DeltaFlow. Any measured, computed, or user defined analog parameter can be assigned to either
channel. See Table 1-1 for all available options.
4.3.4 Configuration: Calibrations
These screens are used for detailed configuration of QA checks. These include daily calibrations and
interference checks.
4.3.4.1 Configuration: Calibrations: Timing
This screen defines the timing and frequency of the daily QA checks. A daily calibration check consists of
a zero and upscale DP check. The Deltaflow controller can be programmed to automatically perform this
check at a certain time on any given day of the week. If the appropriate box is checked, an interference
check will also be conducted at that time. An interference check consists of taking an average DP sample
over a length of time defined by the user, performing a blowback, then taking another average DP
sample. The pre and post blowback samples should agree to some extent depending on how steady the
process is. The extent at which they should agree will take some time to determine through trial and
error. This is why the sample and blowback durations, as well as the failure tolerance is configurable. If