Omega FD6003 User manual

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User’s Guide

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regulations that apply. OMEGA is constantly pursuing certification of its products to the European New
Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.
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WARNING: These products are not designed for use in, and should not be used for, human applications.

1-1
PART 1 - TABLE OF CONTENTS
Description Pages
Quick Start Installation 1.2-1.3
Operating Theory 1.4
Product Limitations 1.5
Model Number Matrix 1.6
Specifications 1.7
Transducer Installation 2.1-2.5
Pre-Installation Functional Test 3.1-3.2
Transmitter Installation 3.3-3.4
Power Source Jumper Settings 3.5
Electrical Connections 3.5-3.6
Power Up and Configuration 3.7
Keypad Operations 3.8-3.19
Trouble Shooting 3.20-3.21
Appendix
Fluid Sound Speed Conversions
Ductile Iron Pipe Data
Cast Iron Pipe Data
Steel, SS, PVC Pipe Data
FPS to GPM Conversion Chart

1-2
This manual contains detailed operating instructions for all
aspects of the FD6000 instruments. The following condensed
instructions are provided to assist the operator in getting
the instrument started up and running as quickly as
possible. This pertains to basic operation only. If specific
instrument features are to be used or if the installer is
unfamiliar with this type of instrument, refer to the
appropriate section in the manual for complete details.
1. TRANSDUCER LOCATION
A. In general, select a mounting location on the piping
system with a minimum of 10 pipe diameters (10 X the
pipe inside diameter) of straight pipe upstream and 5
straight diameters downsteam. See Table 2.1 for
additional configurations.
B. On horizontal pipe, select a position that is between 2
and 4 o’clock on the pipe, with 12 o’clock representing
the top. Installations on vertical pipe should be made
in an area where the flow moves from bottom to top—
ensuring a full pipe of liquid.
2. PIPE PREPARATION AND TRANSDUCER
MOUNTING
A. The piping surface, where the transducers are to be
mounted, needs to be clean and dry. Remove loose
scale, rust and paint to ensure satisfactory acoustical
bonds.
B. Loosely wrap the appropriate length of strap around
the pipe at the location determined in Step 1. Refer to
Figure 1.1 for proper orientation of the transducer. For
greatest accuracy, point the cable of the transducer in
the primary flow direction.
C. Apply a liberal amount of couplant onto the transducer
face. Place the transducer onto the pipe ensuring
square and true placement. If an RTV type of
couplant (requiring curing time) was utilized, allow
sufficient time for curing before applying power to the
instrument or moving the cable.
PART 1 - QUICK START
General
FLOW
Figure 1.1
Top View of Pipe
Transducer Cable

1-3
3. TRANSDUCER/POWER CONNECTIONS
A. Do not attempt to add additional cable to the
transducers.
B. Refer to the DIAGRAMS in Figure 1.2 for proper power
and transducer connections. Verify proper jumper
selections are in place for the power source. See
Figure 3.4.
4. INITIAL SETTINGS AND POWER UP
A. Adjust the GAIN control [R13] to 1/4 turn from full
counter-clockwise rotation.
B. Apply power to the instrument.
C. If the pipe is full of a flowing liquid, the flow meter
signal strength will increase from a zero reading.(press
the 2nd FUNCT key, then press SIGNAL STR). If the
Signal Strength does not increase to a minimum of
000125 counts, gradually turn the GAIN control [R13]
clockwise until the indication is between 000125 and
000200. (Do not over adjust this setting as ambient
noise can influence readings.)
D. If possible, turn off the flow in the pipe. Verify that
SIGNAL STR. is lower than 000100. If SIGNAL STR.
is greater than 000100, verify that the sensor/
transmitter are not located near electrically noisy
components. (VFDs, inverters, motors, power relays,
etc) Verify that transducer connections are proper
and secure. If the SIGNAL STR. remains greater than
000100, consult the Dynasonics Factory for
assistance. It is possible that the GAIN control [R13] is
set too far clockwise and ambient noise is influencing
the readings. Turn the control counter-clockwise until
the signal strength decreases to below 000070 counts.
E. If the instrument passes steps 4C and 4D, the basic
setup of the instrument is complete.
PART 1 - QUICK START
IMPORTANT!
In order to successfully complete the configuration of
the FD6000 Series flow meter, the transducer must be
mounted on a pipe which is full of a flowing liquid. It
is normal to have a zero reading and no signal
strength indication with empty pipes or zero flow rate.
Figure 1.2
Transducer (top picture)
and Power (bottom picture)
Connections

1-4
The FD6000 Series flowmeter is designed to
measure the flow of liquids and slurries in full-pipe
closed systems. The transmitter is field configured to
measure flow on a variety of pipes and liquids. The
standard product is typically used on pipe sizes
ranging from 1 - 120 inch [ 25 - 1524 mm ] pipe I.D.
(With the small pipe transducer option, the pipe size
range is 0.25 - 1 inch [ 6 - 25 mm]). A variety of liquid
applications can be accommodated: sewage,
sludges, concrete, mining slurries, dredging, etc.
Because the transducers are non-contacting and
have no moving parts, the flow meter is not affected
by system pressure, fouling or wear. Standard
transducers are rated to 250°F [121°C]. Optional
high temperature transducers are rated to operate to
300°F [149°C].
The basic principle of operation is the measurement
of the frequency shift “Doppler” of a reflected
ultrasonic signal from discontinuity in the flowing
liquid. In theory, these discontinuities can be virtually
any amount of suspended bubbles, solids, or
interfaces caused by turbulent flow. In practice the
degree to which this can be reliably accomplished is a
function of the sensitivity and frequency of the
transducer and associated transmitter. The design
requires greater than 100 PPM of suspended
solids or bubbles over 100 microns in size. The
PART 1 - GENERAL
General
Operating Theory
transducer which generates and receives the
ultrasonic signal supplies the data to the transmitter.
The transmitter processes the signal and provides an
analog and pulse output for velocity indicating and
volumetric totalizing. In addition, the transmitter
contains a signal strength indicator which determines
satisfactory operation.

1-5
The flowmeter is typically used as a unidirectional
meter and is most accurate when the transducer is
mounted in the orientation detailed in this manual.
But, the meter will measure flow in both directions —
although flow direction will not be indicated or
totalized properly. The flowmeter will operate from
signals returned from turbulence alone (such as
installation directly at pump discharges or
downstream from elbows and valves); however, it
should be noted that turbulence may vary with flow
rates and result in non-linear results. The
repeatability of the device is not dependent on most
process liquids.
The flowmeter is designed to measure the flow of
liquids and slurries, as long as a small, homogeneous
quantity of entrained air or suspended solids are
present. Without the presence of continuing supply of
air or solids, the transmitted pulses are not reflected
back to the transducer and the indicator will indicate
zero flow.
The signal strength value will indicate a value greater
than 100 counts when a minimum size and
concentration of suspended particles are available for
a reliable flow reading (100 micron and 100 PPM
minimum) and the liquid is moving at least 0.1 FPS
[0.03 MPS]. Most water-based liquids can be
measured from a factory calibrated flowmeter.
However, liquids with a heavy solids level (i.e. over
2% by volume), liquids with sound speeds that vary
from water (see Appendix - Liquid Sound Speed list)
or pipes with liners may have to be field calibrated.
This is done by adjusting the Calibration value on the
keypad to make the indicator agree with a known flow
velocity or a mathematically corrected fluid velocity.
All standard flow meters are calibrated to measure
the flow of a water-based liquid at 25 degrees C. If
the scale range or units need to changed, the process
to do so is covered in detail later in this manual.
PART 1 - GENERAL
Measuring Limits

1-6
The FD6000 Series employs modular construction
and provides electrical safety for the operator. The
display face contains voltages no greater than 9 Vdc
and any exposed metal work is electrically connected
to Earth Ground. The display face swings open to
allow access to user connections.
The serial number and complete model number of
your meter is located on the inside of the transmitter
front cover. Should technical assistance be required,
please provide OMEGA’s Customer Service
Department with this information. Email:
[email protected].
PART 1 - GENERAL
Serial Number

1-7
PART 1 - GENERAL
(Std) 115 or 230 VAC 50/60 Hz ±10% and 12 VDC. (Opt)
Power consumption less than 12 VA.

NOTES