29609 Gems Sensors Inc, 29609 Datasheet

29609

Manufacturer Part Number

29609

Description

Flow Sensor

Manufacturer

Gems Sensors Inc

Datasheet

1.29608.pdf (1 pages)

Specifications of 29609

Pressure Max

138bar

Accuracy

+/-25%

Operating Pressure Range

2000psig Max.

Sensing Accuracy

25%

Body Material

Brass

Mounting Type

1/2-inch NPT/1-inch NPT

Power Rating

20VA

Port Size

0.5"

Connection Size

Features

Long Paddle

Leaded Process Compatible

Rohs Compliant

Accuracy %

25%

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

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G-24

FS-550 Series – High Pressure, Metal

Paddle Switch

Pipe Line Size: 1-1/4˝ and Up

Primary Construction Material: Stainless Steel or Brass

Setting Type: Fixed

Standard FS-550 switches sense liquid flow in either direction to monitor flow/no-flow

conditions. They are supplied in two paddle lengths. The paddle is trimmed during

installation to permit switch actuation at the desired flow rate. As flow increases in

a pipe, the paddle of the switch pivots to move out of the liquid path, producing less

than 3 PSIG of pressure drop regardless of pipe size.

Specifications

Wetted Materials

Operating Pressure, Maximum

Pressure Drop

Operating Temperature

Set Point Accuracy

Switch*

Repeatability

Electrical Termination

*See “Electrical Data” on Page X-5 for more information.

Standard Actuation and De-actuation Set Points

The Table below indicates paddle lengths which achieve switch actuation for specific

flow rates. Approximate pipe line sizes are marked on paddle.

All flow rate tests for the above table were conducted with the switch installed in a

standard “T” fitting. For calculation of flow rates in pipe sizes larger than 5˝, a flow

velocity of approximately 0.5 ft. per sec. actuates the switch with a full length (5˝ )

paddle. The paddle can be trimmed to achieve different actuation points.

How To Order – Standard Models

Select switch type, paddle length and housing material, then specify adjacent part

number.

Note: The FS-550 Switch is not recommended for use with 1˝ plastic tees.

Paddle Unit

Housing

Paddle

Spring

Other Wetted Parts

Standard

Switch

Short

Long

SPDT

Type

Unit

at Paddle

Pipe Size

Marked

Cut-Off

1-1/4˝

1-1/2˝

2-1/2˝

Point

2˝

3˝

4˝

Paddle

Length

Short

Long

1-1/4˝

5 (3)

—

Approximate Actuation and (De-Actuation) Flow Rates

Material

316 S.S.

Housing

Brass

15 (11)

1-1/2˝

13 (8)

—

Operation

Visit www.GemsSensors.com for most current information.

Switch

22 (15)

28 (21)

22 (15)

Brass or 316 Stainless Steel

302 Stainless Steel

316 Stainless Steel

Ceramic and Teflon

2000 PSIG (138 bar)

3 PSIG (0.2 bar) Maximum

-30°F to + 300°F (-34.4°C to + 148.9°C)

± 25%

SPDT, 20 VA

± 5%

No. 18 AWG, 24˝ L., Polymeric Lead Wires

N.O.

N.C.

Pipe Line Sizes

—

2˝

GPM Water

29 (22)

38 (30)

27 (20)

21 (14)

2-1/2˝

—

Standard

29609

29608

30641

30640

Part Numbers

48 (38)

40 (26)

31 (20)

—

3˝

3-Pin J-Box

56730

56729

66914

61189

52 (39)

45 (32)

39 (25)

—

4˝

Dimensions

FS-550 switches are U.L. Approved for Class I,

Division 2, Groups A, B, C, D hazardous areas.

1-1/2" -3"

PADDLE

(LONG)

1" NPT

1/2" NPT

1-1/2"

2-1/2"

Using GEMS SAFE-PAK

Relays and barriers,

these switches provide

automatic flow/no

flow interlock and

are intrinsically-safe

without explosion-proof

housing and piping.

U.L. Approved — File No. E183854

1- 1/ 2

2- 1/ 2

They are also available as FM-approved

when used with GEMS Junction Boxes

which are explosion-proof for Class I,

Division 1, Groups B, C, D, E, F, G hazardous

locations.

(139.7 mm)

(87.2 mm)

3-7/16"

(25.4 mm)

5-1/2"

U.L. Recognized

File No. E31926

CSA Listed —

File No. LR30200

and LR22666

FM Approved —

File No. 0A8A3.AE

and 1H3A2.AX

HAZARDOUS

SWITCH

FS-550

SAFE-PAK

AREA

(42.8 mm)

(SHORT)

PADDLE

1-11/16"

1-1/4"

VAC

LOAD

(25.4 mm)

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