Teledyne Deltaflow DF180, Operation And Maintenance Manual, Page: 7 / 42

January, 2018
Page 7
1 System Description
The DeltaFlow 180 is an EPA compliant Pitot tube based flow monitoring system. The three main
components of the system are the instrument panel, probe, and sample line. This section describes in
detail each of these components.
1.1 Instrument Panel
The Instrument panel is typically mounted in a climate controlled area, and can be provided with or
without an enclosure. All the electronics, indicators, and valves for the system are located here.
Fig. 1-1 Deltaflow Instrument Panel
1.1.1 Controller
Daily quality assurance checks, signal processing, and monitor configuration are all handled by the
controller. The controller module I/O consists of 8 relays and 8 digital inputs. The relays are used to
control solenoid valves located on the instrument panel during calibration checks, interference checks,
and blowback sequences. The digital inputs are used to initiate different modes such calibration,
interference check, blowback, and maintenance. These modes can be initiated by the buttons located
on the instrument panel or by external dry contact signals from a plant distributed control system (DCS)
that are wired to the Deltaflow instrument panel terminal blocks.
Fig. 1-2 Deltaflow Controller, Analog Module, and Form C Relay Module