Omega Products FSW-7111 User Manual

THERMAL DISPERSION FLOW SWITCHES

FSW-6000/7000 Series

Starts at

505

⻬ Simple to Install

and Low Cost

⻬ No Moving

Parts-Maintenance Free Reliability

⻬ Optimal Temperature

Compensation— Unaffected by Temperature Gradient

⻬ Can Operate in

Temperatures up to 120°C (248°F) with Sanitary Option

⻬ 300 Bar (4300 psi)

Maximum Working Pressure

⻬ Chain of 8 LEDs-

Integrated Flow Rate/ Setpoint Indication

⻬ Can Be Used as a

Level Switch

The FSW-6000/7000 Series are thermal flow switch monitors designed to monitor flow status and also used to detect level of liquids, air and gas. A chain of 8 LEDs gives the user a visual indication of the flow rate. In addition, there is

FSW-6212, $505, shown smaller than actual size.

also a dichromatic LED, which shows the switch point status of the unit. The sensing element and connection of the FSW-6000/7000 Series are made with 316 SS and can be coated with ECTFE/ETFE as an option. The standard enclosure is glass-filled nylon and is also available in an aluminum enclosure for hazardous environments. The FSW-6000/7000 Series can be made with a great variety of process connections such as threaded, flange, or sanitary.

The FSW-6000/7000 Series line of thermal flow switch monitors is based on the principle of thermal dispersion. A typical configuration uses two platinum Resistance Temperature Detectors (RTDs) set within the tip of the sensor. One RTD is heated a few degrees above the temperature of the medium and the other RTD is used as a reference, sensing the actual process temperature. The second RTD also monitors the temperature of the medium, as any changes in temperature must be compensated for in the first RTD. As the process medium flows over the tip of the sensor it disperses some of the

heat from the first RTD. The temperature change between the two RTD's signals the probe’s electronics and the switch changes state once the setpoint has reached.

The FSW-6000/7000 Series may be installed in a pipe or tank using the thread or connection provided. Use only the hexagon when tightening to achieve a seal, do not use the body. The body should be rotated after tightening to leave the cable gland in suitable orientation. The FSW-6000/7000 Series is not affected by its fixing position so it may be installed at any angle around the pipe. However, it is recommended that with horizontal pipe runs the sensor should be installed on the side, into the middle of the pipe. In vertical pipes, the FSW-6000/7000 Series should be installed when there is flow in an upward direction against gravity. Care should be taken when installing the sensor that the probe extends clear of the pipe’s internal wall and is fully immersed into the flow. In pipes with smaller diameters, some care should also be taken so that the sensor is not screwed too far into the line.

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SPECIFICATIONS

Accuracy: ±10% of setpoint Repeatability: ±1% of setpoint Power Supply:

FSW-6000: 85 to 240 Vac (50/60 Hz) FSW-7000: 24 Vdc ±10%

Temperature Range:

Process: -20 to 80°C (-4 to176°F)

[sanitary option to 120°C (248°F) for CIP]

Operating: -20 to 60°C (-4 to140°F) Max Pressure: 300 bar (4351 psi) Protection Class: NEMA 4 (IP65) Wetted Materials: 316 SS Enclosure Material: Glass filled nylon

standard or aluminum die cast option

Process Connection:

⁄2 to 11⁄2 NPT, Tri-GripTM, or flange (others available, consult Flow Engineering Department)

Output: 250 Vac SPDT 5 A relay Switch Point Adjustment: Potentiometer

Bargraph:

Green LED: Flow rate above setpoint Yellow LED: Flow is at above setpoint Red LED: Flow is below setpoint

Switch Point Status:

Red LED: No flow Green LED: Flow Response Time: 1 to 10 seconds

Max Start up Delay: 12 seconds Switching Range:

3 cm/s to 3 m/s (0.09 to 9.84 ft/sec) (liquid), 5 cm/sec to 15 m/sec (0.16 to 49 ft/sec) (gas)

Dimensions:

Nylon Head: 88 Dia x 80 mm H

(3.5 x 2.5" H) Aluminum Head: 88 Dia x 108 mm H

(3.5 x 4.25") Insertion Length: 1

⁄8, 2 and 3" standard,

for other lengths consult Flow Engineering Weight: Approx 680 g (1.5 lb)

AVAILABLE FOR FAST DELIVERY!

To Order (Specify Model Number)

Model No. Price Description Process Connection Enclosure Insertion Length

FSW-6212 $505

FSW-7112 505

FSW-7111 505

Thermal dispersion flow

switch, 85 to 240 Vac power

Thermal dispersion flow

switch, 24 Vdc power

Thermal dispersion flow

switch, 24 Vdc power

⁄

NPT

Glass filled nylon,

NPT conduit, cable

⁄

gland, and 2 m (6.5') cable

Glass filled nylon,

NPT conduit, cable

⁄

gland, and 2 m (6.5') cable

Glass filled nylon,

NPT conduit, cable

⁄

gland, and 2 m (6.5') cable

51 mm (2")

for 1 to 4" pipe

51 mm (2")

for 1 to 4" pipe

35 mm (13⁄8")

for

to 1" pipe

⁄2

Accessories

Model No. Price Description 70A-1 $20 Continuous tone alarm TX4-100 35 4-conductor wire, 30.5 m (100') spool U24Y175 169 24 Vdc power supply

Recommended Reference Book:

Valve Handbook,

FW-306, $135. Visit

omega.com/bobi for Additional Books

Build to Order Models

Model No. Price Description FSW-6(*)(**)(***) $475

Flow switch, 85 to 240 Vac power; specify connection (*), enclosure (**) and insertion length (***)

FSW-7(*)(**)(***) 475 Flow switch, 24 Vdc power; specify connection (*), enclosure (**) and insertion length (***)

Options

Ordering Suffix Add’l Price Description Process Connection (*)

1 N/C 2 N/C 3 N/C 1 NPT thread 5 $186 1.5" Tri-Grip 6 300 2" ANSI flange, 15016 316 SS

Enclosure (**)

1 $30 Glass filled nylon with

2 102 Aluminum die cast with 3 108 Aluminum die cast with cable gland

Insertion Length (***)

1 N/C 35 mm (1 2 N/C 50 mm (2") 3 N/C 75 mm (3")

Comes complete with operator’s manual. To order ECTFE/ETFE element coating, add suffix “-ETFE” to model number and

$200 to price. Ordering Examples: FSW-6212, flow switch, 85 to 240 Vac power,

51 mm (2") insertion length, and 70A-1, alarm, $505 + 20 = $525. FSW-7113, flow switch, 24 Vdc power,

NPT thread

⁄

NPT thread

⁄

NPT conduit,

⁄

cable gland, and 2 m (6.5') cable

⁄

NPT fitting, glass filled nylon, 75 mm (3") insertion length, $505.

⁄

NPT conduit

⁄

NPT fitting, glass filled nylon,

⁄

FSW-6000 flow switches are available with 1.5" Tri-Grip

(Tri-Clamp®compatible)

connection for sanitary

applications.

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