Teledyne Deltaflow DF180, Operation And Maintenance Manual, Page: 16 / 42

January, 2018
Page 16
3 Installation
Below are general descriptions of several areas of consideration for installation of the Deltaflow 180
system. Please see the installation drawings provided in Appendix B for further detail.
3.1 Pre-Installation Planning and Preparation
The engineering that precedes installation of the Deltaflow is vital to successful operation of the
instrument and should be performed in consultation with responsible Teledyne Monitor Labs
representatives. Key factors that must be considered include:
Location of the probe, and instrument panel. Items such as vibration, heat range, stream turbulence,
installation and maintenance access, and protection from environmental and mechanical hazards must
be considered.
Sample line run (distance, routing, proximity to electrical equipment and heat sources).
Accessibility to a continuous supply of clean oil free instrument air at approximately 50 psig (345 kPa).
Each blowback sequence consumes about 3 standard cubic feet (0.085 standard cubic meters) of air.
The Deltaflow installation checklist contains a number of questions that must be answered by the user
before assembly and calibration of the system may begin at the Teledyne Monitor Labs factory. This is
provided at the time of purchase or it can be downloaded off the Teledyne Monitor Labs website.
3.2 Site Selection
Without question, the single most important factor affecting overall performance of any continuous
monitoring device is that of site selection. If this decision is not made prudently, then monitor accuracy
and reliability will suffer.
3.2.1 Representative Sampling Location
Complex flow patterns in the vicinity of bends or obstructions may potentially cause the monitor's
sample point to be unrepresentative of the total flow velocity and volume. Teledyne Monitor Labs
recommends a minimum of 6 duct diameters of straight undisturbed duct length upstream of the
monitor and 2 downstream. However, due to the complexity of the fluid dynamics of these types of gas
streams and their dependence on individual site geometry, the burden of responsibility for testing to
determine the flow characteristics at the site location is solely that of the user.
3.2.2 Access to Sampling Location
Ease of access to the stack mounted equipment is a factor that is nearly always underrated when
deciding on an installation site. If the monitor location is only accessible via vertical ladders with
extensive climbing involved or in exposed outside areas where maintenance personnel are subject to
extremes of wind, precipitation, or temperature, then monitor maintenance will suffer adversely in the
long term. Without proper maintenance, reliability decreases and the access problems extend monitor
outage during repair.