Omega FL-1210 User manual

It is t e policy of OMEGA Engineering, Inc. to comply wit all worldwide safety and EMC/EMI regulations t at apply. OMEGA is constantly pursuing certification of its
products to t e European New Approac Directives. OMEGA will add t e CE mark to every appropriate device upon certification.
Te information contained in t is document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves t e rig t to alter specifications wit out notice.
WARNING: T ese products are not designed for use in, and s ould not be used for, uman applications.
WARRANTY/ DISCLAIMER
OMEGA ENGINEERING, INC. warrants t is unit to be free of defects in materials and workmans ip for a period of 13 months from date of purc ase.
OMEGA’s WARRANTY adds an additional one (1) mont grace period to t e normal one (1) year product warranty to cover andling and
s ipping time. T is ensures t at OMEGA’s customers receive maximum coverage on eac product.
If t e unit malfunctions, it must be returned to t e factory for evaluation. OMEGA’s Customer Service Department will issue an Aut orized Return (AR)
number immediately upon p one or written request. Upon examination by OMEGA, if t e unit is found to be defective, it will be repaired or replaced
at no c arge. OMEGA’s WARRANTY does not apply to defects resulting from any action of t e purc aser, including but not limited to mis andling,
improper interfacing, operation outside of design limits, improper repair, or unaut orized modification. T is WARRANTY is VOID if t e unit s ows
evidence of aving been tampered wit or s ows evidence of aving been damaged as a result of excessive corrosion; or current, eat, moisture or
vibration; improper specification; misapplication; misuse or ot er operating conditions outside of OMEGA’s control. Components in w ic wear is not
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Servicing North America:
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e-mail: [email protected]
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RETURN REQUESTS/INQUIRIES
Direct all warranty and repair requests/inquiries to t e OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO
OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER
TO AVOID PROCESSING DELAYS). T e assigned AR number s ould t en be marked on t e outside of t e return package and on any
correspondence.
T e purc aser is responsible for s ipping c arges, freig t, insurance and proper packaging to prevent breakage in transit.
FOR WARRANTY RETURNS, please ave t e following information
available BEFORE contacting OMEGA:
1. Purc ase Order number under w ic t e product was PURCHASED,
2. Model and serial number of t e product under warranty, and
3. Repair instructions and/or specific problems relative to t e product.
FOR NON-WARRANTY REPAIRS, consult OMEGA for current repair c arges.
Have t e following information available BEFORE contacting OMEGA:
1. Purc ase Order number to cover t e COST of t e repair,
2. Model and serial number of t e product, and
3. Repair instructions and/or specific problems relative to t e product.
OMEGA’s policy is to make running c anges, not model c anges, w enever an improvement is possible. T is affords our customers t e latest in tec nology and
engineering. OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyrig t 2007 OMEGA ENGINEERING, INC. All rig ts reserved. T is document may not be copied, p otocopied, reproduced, translated, or reduced to any electronic
medium or mac ine-readable form, in w ole or in part, wit out t e prior written consent of OMEGA ENGINEERING, INC.

DESCRIPTION
The FL-1200 Flowmeters are variable area, glass tube,
flowrate indicating meters. The basic elements are a tapered
glass metering tube and a metering float. Features include
quick and simple removal or installation of the tube and float
while the meter remains in the process piping.
RECEIPT OF EQUIPMENT
When the equipment is received, the outside packing case
should be checked for any damage incurred during shipment.
If the packing case is damaged, the local carrier should be
notified at once regarding his liability.
UNPACKING
Carefully unpack the meter and inspect it for any damage
that may have occurred during shipment. The flowmeters are
shipped completely assembled and tested. It should not be
necessary to tighten or adjust any of the parts when it is
received.
RETURN SHIPMENT
Do not return any assembly without an authorized return
(AR) number from OMEGA Customer Service Department
[phone].
INSTALLATION
The flowmeter should be mounted within 6° of the true
vertical. The inlet connection to the flowmeter is in the bottom
end fitting. The connections are normally horizontal, female
NPT. Be sure that the piping is adequately supported to
prevent undue strain on the meter. Both end fittings of the
flowmeter may be rotated in 90° increments. To rotate the end
fittings simply remove the side plates and tube and rotate the
end fitting to the desired location. When the meter is
reassembled, the side plates and endfittings are self-aligning.
OPERATION
CAUTION
Do not operate this instrument in excess of specifications.
After the flowmeter has been installed in the flow system, it is
ready for operation. A built-in needle control valve may be
provided to control the flow through flowmeter. These control
valves are designed for fine control. Excessive tightening may
damage the valve seat and limit its effectiveness as a control
valve. If tight shut-off is required, it is recommended that a
separate shut-off valve be installed in the line immediately
before the flowmeter.
DISASSEMBLY AND CLEANING
It is recommended the user periodically inspect the tube and
float, and clean if necessary. Dirt or foreign materials
adhering to the tube and float may cause inaccuracy and
sticking of the float. The metering tube (Borosilicate glass)
and related parts may be ultrasonically cleaned or cleaned
with any solvent which does not attack glass. To disassemble,
use the following procedures:
1. Remove the plastic safety shield.
2. Loosen the seal spindle or jack screw by turning it
counterclockwise with a 5/32" hex wrench. The tube may
now be canted out of the meter housing.
3. When cleaning Series FL-1200 meters, it is recommended
the spring float stops and float e removed to prevent the
stops and float from accidently failing out of the tu e
during handling, and possi ly causing damage to the float.
4. Packing seats and packing inserts now may e removed.
5. With the metering tube out, the seal spindle or jack screw
may be rotated clockwise for removal. it should not be
necessary to remove the seal spindle unless the “O” Ring
which seals the spindle requires replacement. The“O” Ring
may be used as long as it is not torn or distorted.
6. The needle control valve assembly may be removed by
turning the valve body counter-clockwise, The valve seat,
stem and packing then may be removed easily from the
valve body f or cleaning or replacement.
SPECIFICATIONS
SCALES
LENGTH: 65 mm
GRADUATIONS: Direct reading in gpm water or
scfm air
RATINGS
PRESSURE: 200 PSIG maximum
TEMPERATURE: 250°F maximum. Fluid temperatures
below 32°F will cause
frosting of the glass metering tube.
CONNECTIONS: Horizontal female, 3/8" NPT
ACCURACY: Conforms to ISA R. P. 16.1,
Specifications 10-S-10 ±10% full scale
REPEATABILITY: ±0.5% of full scale
DIMENSIONS: H: 8.44" x W: 1. 5" x D: 4.56"
CONSTRUCTION
METERING TUBE: Borosilicate Glass
FLOAT: 316 Stainless Steel
FLOAT STOPS: Stainless Steel
END FITTINGS &
TUBE RETAINING
ADAPTOR: Chrome plated brass, 316 stainless
steel
SIDE PLATES: Chrome plated brass
PACKING MATERIAL: O-Rings: Buna-N w/Brass, Viton®
w/Stn Stl:
Packing: Neoprene®w/Brass, Viton
w/Stn StI.
FL-1 00 Series
High Flow Rate Purge Rotometers
INSTRUCTION
SHEET
M036 /1 00
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2
REASSEMBLY PROCEDURE
(Refer to parts diagram.)
1. Use the reverse of steps 1 through 6 of the disassembly
Procedure to reassemble the meter.
2. When replacing the packing seats in the flowmeter body
be sure the packing inserts are approximately 1/16" above
the top of the packing seat. Also be certain the tube seats
firmly on the packing seats and does not overlap onto the
end block.
3. The seal spindle serves to radially compress the tube seat
gasket and exert a uniform pressure on the metering tube
to prevent any possibility of leakage. Do not overtighten
the seal spindle.
4. After the flowmeter has been reassembled, it is important
that it be hydrostatically tested at a liquid pressure of 300
psi at room temperature.
CAUTION
Hydrostatic testing should e performed only y trained
and qualified personnel or serious damage could result.
ITEM DESCRIPTION
PART NUMBER MATERIAL
1 Metering Tube Assembly, Metering Tube (Std. or per S/N Standard, or Direct Etched
Direct Etched) 316 Stainless Steel Float,
Neoprene Packing, Stainless Steel Spring Stops
2 Float per S/N Stainless Steel
3 Spring Float Stops per S/N Stainless Steel
4 End Fitting (Outlet) A-325-G-001 Brass or Stainless Steel
*5 End Fitting (Inlet - Use Without Valve) A-325- -006 Brass or Stainless Steel
End Fitting (Inlet - Use With Valve) A-325-H-002 Brass or Stainless Steel
6 ack-Screw Assembly S-817-Z-009 Brass or Stainless Steel
7 ack-Screw Nut A-618- -005 Brass or Stainless Steel
8 O-Ring F-375-B-905 Buna-N, Kel-F, Viton
9 O-Ring (major) F-375-B -211 Buna-N, Kel-F, Viton
10 O-Ring (minor) F-375-B-010 Buna-N, Kel-F, Viton
11 Inlet and Outlet Packing A-589-B-043 Neoprene or Teflon
12 Window Shield (2) with Screws A-794-A-012-NOA Clear Plexiglas
13 Sideplate (2) with Screws A-614-A-008-FCG Aluminum
14 Adapter (2) 3/8” NPT A-014-C-023 Brass or Stainless Steel
15 O-Ring F-375-B-908 Buna-N, Kel-F
16 Needle Valve Assembly T-947-B-110 Brass or Stainless Steel
* End fitting only, valve not included. See item 16 when ordering valve.
WARNING Glass metering tubes are designed for operation up to the maximum operating pressures and temperatures as
specified herein. Due to the inherent brittle characteristics of glass and conditions beyond our control, tube breakage could
result below specified operating conditions. Possible glass tube breakage represents a potential hazard to operating personnel;
therefore, operator protection should be supplied where operating pressures may exceed 50 psig. A safety shield constructed of
1/2 inch acrylic plastic may be used or the glass tube meter may be replaced with an all metal (armored) meter.
PARTS LIST
When ordering parts, please specify: SERIAL NUMBER,
flowmeter Model Number, Part Number if available, and if
known, specify materials of construction.
7
14
8
415
12
6
6
6
13
11 9
2
14
13
15
5
1
31
16
47 32
12
29
27 28
30
FL-1200 Series Part Drawing

3
CAPACITIES
RECOMMENDED INSTALLATION PRACTICES
Water hammer and surges can be damaging to any flowmeter and must always be avoided.
Water hammer occurs when a liquid flow is suddenly stopped as with quick closing and solenoid operated valves. Surges
occur when flow is suddenly begun, as when a pump is turned on at full power or a valve is quickly opened.
Liquid surges are particularly damaging to flowmeters if the pipe is originally empty. To avoid damaging surges, fluid lines
should remain full (if possible) and pumps should be brought up to power slowly and valves opened slowly. In addition, to
avoid both water hammer and surges, a surge chamber should be installed.
WARNING
FLOWMETER OPERATION
If the inlet and outlet valves adjacent to the flowmeter are to be closed for any reason, the flowmeter must be completely
drained. Failure to do so may result in thermal expansion of the liquid which can cause rupture of the meter and possible
personal injury.
MAXIMUM FLOWRATE
Pressure Drop Pressure Drop
Part No. Water (gpm) Inches W.C. Inches W.C.
w/o Valve w/Valve
FL-1210 .08-.8 12.6 13.6
FL-1211 .15 -1.5 22.2 27.0
FL-1212 .25-2.5 61.0 85.2
FL-1213 .35-3.5 88.7 121.0
FL-1214 .5-5.0 172.0 238.0
Pressure Drop Pressure Drop
Part No. Air (scfm) Inches W.C. Inches W.C.
W/o valve W/Valve
FL-1201 .34-3.4 14.34 15.5
FL-1202 .6-6.0 25.34 30.8
FL-1203 1.2 -12.0 69.34 97.3
FL-1204 1.5 -15.0 101.34 138.3
TYPICAL INSTALLATIONS