cdi
meters
CDI Meters, Inc.
3R Green Street, Woburn, MA 01801
email: [email protected]
call toll free: 866-885-2462
www.cdimeters.com
Warranty
CDI warrants solely to the buyer that the Model 25 Flowmeter shall be free from
defects in materials and workmanship, when given normal, proper and intended
usage, for three years from the date of purchase. During the warranty period, CDI will
repair or replace (at its option) any defective product at no cost to the buyer. The
foregoing warranty is in lieu of any other warranty, express or implied, written or oral
(including any warranty of merchantability or fitness for a particular purpose). CDI’s
liability arising out of the manufacture, sale or supplying of the flowmeter, whether
based on warranty, contract, tort or otherwise, shall not exceed the actual purchase
price paid by the buyer, and in no event shall CDI be liable to anyone for special,
incidental or consequential damages.
©
Copyright 2011 - 2012 CDI Meters, Inc.
01.12
CDI 25 Flowmeter
Installation and Operating Instructions
Application
The meter may be used with either compressed air or Nitrogen, at pressures
from atmospheric to 200 psig. The air or Nitrogen must be free of oil and
suspended water droplets. In a compressed-air system, the meter should be
installed downstream of a dryer. Refer to the data sheet for the calibrated range
of the particular meter. The meter will continue to read at higher flow rates, but
there may be significant inaccuracy.
Location
The meter must not be installed in a wet or hazardous location. For best
accuracy, the meter should be installed with at least five diameters of straight
pipe upstream. Avoid installing the meter downstream of any item that could
distort or concentrate the flow, such as a partially-closed valve, a regulator, or
two closely-spaced elbows in different planes. Allow at least ten diameters of
straight pipe between any such item and the meter. Select a location that meets
these requirements and also provides good visibility.
Preparing the Holes
When the holes are drilled, metal shavings will enter the pipe. Make sure that
filters or other provisions are present downstream to prevent the shavings from
damaging equipment or product or being blown out and causing injury.
Shut down the air and make sure that it will remain shut off while the meter is
being installed. Before starting to drill the holes, make sure that the air pressure
is completely bled down. Use the CDI 5200-DG drill guide. Secure the drill guide
to the pipe with a C clamp, a hose clamp or a chain clamp. If using a C clamp,
make sure that it is centered across the pipe. Drill the holes, remove the drill
guide, and remove any burrs that were formed when you drilled the holes. If the
pipe is rough near the holes, smooth it with a file.
Apply the “Holes in Pipe” decal so that it will be hidden when the meter is in place
but will be revealed when it is removed.
Installing the Meter
Make sure the probes are clean. If there is any oil or dirt on them, clean them
with alcohol or a similar degreaser. Insert the band clamps into the slots provided
