Page 1
WATER FLOWMETER AND CONTROLLER
FLV-4604A
shown smaller
FLR-1616A
shown smaller
than actual size.
than actual size.
FLR-1600A Series
FLV-4600A Series
Standard
U Response Time
Up to 20 ms
U Turndown Ratio of 50:1
U Pushbutton Tare
(with Display)
U ±2% FS Accuracy
U NIST Traceability
The OMEGA® FLR-1600A and
FLV-4600A Series flowmeters
and controllers use two of the
best studied physical properties of
liquids to measure flow: pressure
and viscosity. Differential pressure
measurement, across a laminar
flow element, results in a flowmeter
that is inherently linear.
OMEGA flow meters measure
differential pressure within that
laminar region to achieve a
turndown of 50:1 typical and the
accuracy is ±2.0% of full scale.
It uses the same technology as
the laminar gas mass flow and
volumetric flow meters, FMA-1600A
and FLV-1600A. There are no
moving parts to wear out.
The FLR-1600A Series is a
volumetric water flowmeter. The
unique method of flow detection
allows the meter to measure
extremely low flow rates at an
affordable price. The FLR-1600A
Series was designed with deionized
water in mind. These flowmeters
are available in ranges of
500 microliters per minute full scale
to 10 liters per minute full scale.
The FLR-1600A water meter
provides data on the flow rate
and temperature via the standard
local display and the RS232 serial
output. An optional gauge pressure
sensor is available on the
secondary output model “-P”.
The FLV-4600A Series water flow
controller utilizes a proportional
valve coupled to a flowmeter body
creating a unique in-situ closed-loop
F-95
flow controller system.
Measurements are taken within the
laminar region of the flow meter
and the integral PID controller
positions the valve according to
the flow set points. The controllers
can accept an RS232 or the 0 to
5V control input signal depending
on what is preferred. Independent
of the set point voltages, the
controllers can be configured for
single or dual output of the same or
different voltages and/or different
parameters such as temperature
and flow. This is possible because
of our laminar flowmeter design that
incorporates solid-state differential
and temperature sensors on the
standard model to determine flow
in an inherently linear system. An
optional, absolute gauge pressure
sensor is available on the “-P”
secondary output models. The
result is a fast responding linear
flow meter with multiple outputs.
All these parameters are
simultaneously visible with our
dynamic display that includes a
push button operator interface.
water flow controllers are available
from 50 milliliters per minute full
scale to 500 milliliters per minute
full scale.
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SPECIFICATIONS
Accuracy: ±2% FS
Repeatability: ±2% FS
Turndown Ratio: 50:1
Response Time:
FLR-1600A: 20 ms
FLV-4600A: 100 ms
Input Control Signal
(FLV-4600A Units):
0 to 5 Vdc and RS232
Output Signal: 0 to 5 Vdc, RS232
Optional Input/Outputs:
4 to 20 mA, 0 to 10 Vdc
Operating Temperature:
10 to 50°C (50 to 122°F)
Zero Shift: 0.02%/ATM FS/°C
Span Shift: 0.02%/ATM FS/°C
Excess Flow Rate:
Approx 28% overage
Maximum Pressure: 100 psig
Minimum Pressure Drop: 0.4 psid
Supply Current (Typical):
FLR-1600A: 30 mA
FLV-4600A: 250 mA
Supply Voltage:
FLR-1600A: 7 to 30 Vdc,
FLV-4600A: 12 to 30 Vdc,
Note: 15 Vdc minimum for 4 to 20 mA
output option.
Electrical Connections:
8-pin circular mini DIN
Wetted Materials: 303, 302 and
316 SS, FKM, polythermide, silicone
glass, silicone rubber; controllers also
have 430 FR, 416 SS, nickel,
brass and polyoxymethylene
Dimensions: mm (inch)
Flow Range
(Full Scale) Height Length Depth
FLR-1600A
0.5 to 1 SCCM 112 (4.4) 60 (2.4) 27 (1.05)
2 to 500 SCCM 116 (4.6) 60 (2.4) 27 (1.05)
1 SLPM 116 (4.6) 60 (2.4) 27 (1.05)
2 SLPM 119 (4.7) 67 (2.6) 27 (1.05)
5 to 10 SLPM 129 (5.1) 102 (4.0) 41 (1.6)
FLV-4600A
0 to 1 SCCM 112 (4.4) 85 (3.3) 27 (1.05)
5 to 500 SCCM 116 (4.6) 91 (3.6) 27 (1.05)
1 to 5 SLPM 145 (5.7) 194 (7.7) 57 (2.3)
Please allow approximately 44.5 mm (1.75") on top of unit for electrical
cable connection.
Differential
Pressure Sensor
Temperature
Sensor
Optional Gauge
Pressure Sensor
0.035
0.250
A
A
FLV-4604A shown
smaller than actual size.
F
Differential
Pressure Sensor
Temperature
Sensor
Exploded View of Internal
Laminar Flow Elements
Exploded View of Optional
12P or V2P Laminar Elements
F-96
Page 3
To Order Visit omega.com/flr1600 for Pricing and Details
Water Flowmeter 4 to 20 mA Output 2, 4 to 20 mA Output** 2, 0 to 5V Output**
Model No. Model No. Model No. Model No. Connection Max Flow
FLR-1601A FLR-1601A-I FLR-1601A-I2 FLR-1601A-V2 10 to 32 thread 0.001 to 0.5 CCM
FLR-1602A FLR-1602A-I FLR-1602A-I2 FLR-1602A-V2 10 to 32 thread 0.02 to 1 CCM
FLR-1614A FLR-1614A-I FLR-1614A-I2 FLR-1614A-V2
FLR-1615A FLR-1615A-I FLR-1615A-I2 FLR-1615A-V2
FLR-1603A FLR-1603A-I FLR-1603A-I2 FLR-1603A-V2
FLR-1616A FLR-1616A-I FLR-1616A-I2 FLR-1616A-V2
FLR-1604A FLR-1604A-I FLR-1604A-I2 FLR-1604A-V2
FLR-1617A FLR-1617A-I FLR-1617A-I2 FLR-1617A-V2
FLR-1618A FLR-1618A-I FLR-1618A-I2 FLR-1618A-V2
FLR-1619A FLR-1619A-I FLR-1619A-I2 FLR-1619A-V2
FLR-1620A FLR-1620A-I FLR-1620A-I2 FLR-1620A-V2
FLR-1605A FLR-1605A-I FLR-1605A-I2 FLR-1605A-V2
FLR-1606A FLR-1606A-I FLR-1606A-I2 FLR-1606A-V2
FLR-1607A FLR-1607A-I FLR-1607A-I2 FLR-1607A-V2
Water Flow Controller Min P = 5 Psig
FLV-4604A FLV-4604A-I FLV-4604A-I2 FLV-4604A-V2
FLV-4617A FLV-4617A-I FLV-4617A-I2 FLV-4617A-V2
FLV-4618A FLV-4618A-I FLV-4618A-I2 FLV-4618A-V2
FLV-4619A FLV-4619A-I FLV-4619A-I2 FLV-4619A-V2
FLV-4620A FLV-4620A-I FLV-4620A-I2 FLV-4620A-V2
FLV-4605A FLV-4605A-I FLV-4605A-I2 FLV-4605A-V2
FLV-4606A FLV-4606A-I FLV-4606A-I2 FLV-4606A-V2
Comes complete with 24 Vdc universal power supply, 1.8m (6') cable, 8-pin male mini-DIN connector, operator’s manual, and NIST certificate.
For a portable version of the FLR-1600A Series meters add suffix, “-B” to the model number, for additional cost. Portable versions have an integral
battery compartment and come complete with 24 Vdc universal power supply, 1.8m (6') cable, 8-pin male mini-DIN connector, operator’s manual,
Nist certificate, and 9V battery installed. Option not available on versions where 4 to 20 mA is the chosen output.
Units are calibrated to air @ 5 psig for 0 to 1 LPM, 15 psig for 2 to 10 LPM, 30 psig for 20 to 100 LPM, and 50 psig for 200 LPM and greater
Calibrations done at ambient 21ºC (70ºF) temperature only.
To replace the standard RS232 communications with RS485, add suffix “-RS485” to the model number, for additional cost.
** Optional secondary output are scaled the same as the primary output scale. For an alternate temperature output scale, add suffix “-T” to the
model number, no additional cost. For an alternate Pressure output scale, add suffix “-P” to the model number, for additional cost.
Note: Models with secondary output for pressure include optional gauge pressure sensor.
For units scaled in CFH, add suffix “-CFH” to model number. Specify desired CFH range, no additional cost.
For totalizer option, add suffix “-TOT” to the model number, for additional cost. Please specify resolution.
This is a 6-digit counter. Examples: For totalizing in liters with 1/100 liter resolution, the max count would be 9999.99. For totalizing in liters with
1 liter resolution, the max count would be 999999.
¹⁄₈
FNPT 0.04 to 2 CCM
¹⁄₈
FNPT 0.1 to 5 CCM
¹⁄₈
FNPT 0.2 to 10 CCM
¹⁄₈
FNPT 0.4 to 20 CCM
¹⁄₈
FNPT 1 to 50 CCM
¹⁄₈
FNPT 2 to 100 CCM
¹⁄₈
FNPT 4 to 200 CCM
¹⁄₈
FNPT 0 to 500 CCM
¹⁄₈
FNPT 0.02 to 1 LPM
¹⁄₈
FNPT 0.04 to 2 LPM
¹⁄₈
FNPT 0.1 to 5 LPM
¹⁄₈
FNPT 0.2 to 10 LPM
¹⁄₈
FNPT 1 to 50 CCM
¹⁄₈
FNPT 2 to 100 CCM
¹⁄₈
FNPT 4 to 200 CCM
¹⁄₈
FNPT 0 to 500 CCM
¹⁄₈
FNPT 0.02 to 1 LPM
¹⁄₈
FNPT 0.04 to 2 LPM
¹⁄₈
FNPT 0.1 to 5 LPM
Accessories for FLR-1600A/FLV-4600A Series
Model No. Description
FMA1600-C1 Replacement 8-pin male mini-DIN connector cable, single ended, 1.83 m (6')
FMA1600-C1-25FT 8-pin male mini DIN connector cable, single ended, 7.62 m (25')
FMA1600-C2 8-pin male mini DIN connector cable, double ended, 1.83 m (6')
FMA1600-C2-25FT 8-pin male mini DIN connector cable, double ended, 7.62 m (25')
FMA1600-C3 8-pin male mini DIN to DB9 female adaptor, 1.83 m (6')
FMA1600-CRA 8-pin male right-angle mini DIN cable, single ended, 7.83 m (6')
FMA1600-MDB Multi-drop box
FMA1600-PSU Univeral 100 to 240 Vac to 24 Vdc power supply adaptor
MN1604 Replacement 9V battery for the “-B” portable meters
FMA1600-BP Battery cradle (not for use with “-B” versions)
FTNY-K210BN Nylon body, tube ID ¹⁄₁₆ BAXB to 10 to 32 UNF connector
FTPP-K23ONP Polypropylene body, tube ID ¹⁄₈ hose barb to 10-32 UNF connector
F-97
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