Omega Products FV100 Installation Manual

User’s Guide

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FV100/FV100-T Series

Installation & Operation Manual

on Vortex Shedding Flowmeter &

Temperature (optional) Transmitter

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It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI
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.

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, human applications.

2

CONTENTS

Subject Page

Specifications ....................................................................................... 3

Operation ............................................................................................. 4

Applications.......................................................................................... 4

Using this Manual................................................................................. 5

Model Plate Examples ......................................................................... 5

Name Plate Features ........................................................................... 5/6

Installation ............................................................................................ 6

Electrical/Wiring/Grounding.................................................................. 7

Wiring Diagrams................................................................................... 7

DC Power Supply Voltage Requirements ............................................ 8

Configuration/Setup ............................................................................. 8/9

FV100-T Indicators............................................................................... 10

Model Codes ........................................................................................ 10

Pressure Drop Data ............................................................................. 10

Cabling ................................................................................................. 3/ 10

Installation Dimensions ........................................................................ 11/12

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Specifications

Maximum operating pressure: 300 PSIG (20 Bar)
Minimum operating pressure: See page 6 & 10 (Pressure Drop Charts)
Maximum operating temperature (fluid and ambient): 185°F (85ºC), 186°F to 210°F (85ºC to 99ºC)

with reduced rating of the solid state relay.

Minimum operating temperature (fluid and ambient): 35°F (2ºC).
Maximum Flow: Meters may be over ranged, occasionally, up to 125% of capacity without damaging

the meter**
**Output is clamped at 21mA, 6.3% over range, display will indicate up to 125% FS

Capacities: 3/4" 25 GPM (95 LPM); 1" 50 GPM (190 LPM); 1 1/2" 100 GPM (380 LPM);

2" 200 GPM (750 LPM)
Process Connections: NPT female
Wetted Parts: Brass, PVDF & Viton
Enclosure Rating: Type 1, 3, 4, 12, & 13, IP65
Power Requirement: 10 - 30 Vdc @ 80 mA

Caution: The unit shall be supplied by a SELV (separated extra-low voltage) source in

accordance with CSA Standard C22.2 No.1010.1-92 Annex H.
Display: 3 digit LED digital display, 0.3" high

Environmental conditions: This device has been designed for use in Installation category I, pollution
degree 4, at altitudes up to 2000 meters (6560 ft.), either indoors or outdoors as defined in CSA Standard
C22.2 No.1010.1-92.

Flow (electrical)

Accuracy: ± 5% of Full Scale
Analog Output: 4-20 mA (600 ohm @ 24 Vdc) proportional to flow
Response Time: 1.5 seconds to 63% of step change
Repeatability: ± 0.25% of actual flow
Alarm Output: Low flow, Solid State SPST Relay, rated to 125 mA @ 30 Vdc, up to 185° F,

*50 mA @ 30 Vdc between 186° F & 210° F (85-99° C)
Alarm Deadband: 5% of full scale
Alarm State: NO or NC above setpoint (selectable)
Electrical Connection: 5-pin micro dc male connector

Temperature (electrical)

Accuracy: ± 1% of Full Scale
Analog Output: 4-20 mA (600 ohm @ 24 Vdc); 4 mA= 32° F (0° C) to 20 mA = 212° F (110° C)
Response Time: 1.5 seconds to 63% of step change
Repeatability: ± 0.25% of actual temperature
Alarm Output: High temperature, Solid State SPST Relay, rated to 125 mA @ 30 Vdc, up to 185° F,

*50 mA @ 30 Vdc between 185° & 210° F (85-99° C)
Alarm Deadband: 2% of full scale
Alarm State: Same as selected for Flow

4

OPERATION

FV100 is an inline flow meter that utilizes the vortex shedding principle. The fluid strikes a bluff body

generating vortices (eddies) that move downstream. The vortices form alternately, from one side to the
other. A piezoelectric sensor housed in a sensor tube directly downstream of the bluff senses the pressure
zones created by the vortices. The sensor generates a frequency directly proportional to the vortices
(flow). The pulses are then amplified by the circuit board and converted to a 4-20 mA output, which is
also linear with flow. Flow can be displayed on the LED display in either GPM or LPM. Selection of the
preferred units of measure is made from two white front panel push buttons. There is also a solid state
relay output that can be set for a low flow contact from 15% to 90% of full-scale flow. The relay can be
configured to be NC (normally closed) or NO (normally open) at flow (above set point). It will change
state on decreasing flow upon reaching the setpoint.

FV100-T meters combine temperature measurement with the flow measuring features of FV100 Series.
The housing utilizes a temperature sensor housed in a small thermowell directly downstream of the flow
sensor. FV100-T meters display temperature or flow on the LED display. Temperature can be displayed
in either degrees Fahrenheit or Celsius and is selectable from the two white front panel buttons. There is
a 4-20 mA output proportional to temperature and a solid state relay that can be configured for a high
temperature set point. The relay function will be the same as selected for flow, normally closed or
normally open, below set point, since it is a high alarm. So, you have two transmitters in one - flow and
temperature.

APPLICATIONS

FV100/FV100-T can be used on low viscosity clean or dirty water-like liquids that are compatible with

brass, PVDF & Viton. Metered fluids should not include long fibers or a significant level of abrasive
solids. Bluffs are replaceable, as are the sensors, should abrasive wear occur over time. Typical applica­tions will be for cooling loops using water, 50% solutions of glycols, and water soluble machine coolant
(up to 10%). These applications are found in most process industries, including rubber, steel, fabrication,
manufacturing, refining, paper, chemical, food, petrochemical and power. They cannot be used on
flammable liquids or gases including air.

NOTE: If this equipment is used in any manner not specified herein, the protection provided by the
equipment may be impaired.

Cleaning: These meters do not require any special cleaning of the external surfaces. If cleaning is
desired, do not use any strong solvents, detergents, or chemicals. Brushing away accumulations of dirt
or wiping with a cloth and water is suggested.

5