Sensores de Nivel de un solo Punto

Sensores de Nivel de un solo Punto

INTRODUCTION

Float Type Level Switches

Single Point

GEMS Level Switches operate on a direct, simple principle. In most models, a float encircling a stationary stem is equipped with powerful, permanent magnets. As the float rises or lowers with liquid level, the magnetic field generated from within the float actuates a hermetically sealed, magnetic reed switch mounted within the

PERMANENT

MAGNET

FLOAT stem. The stem is made of non-magnetic metals or rugged, engineered plastics. When

HERMETICALLY

SEALED MAGNETIC

REED SWITCH mounted vertically, this basic design provides a consistent accuracy of ±1/8 inch. Multi-station versions use a separate reed switch for each level point being monitored.

Contents

Small Size

Page Start

Engineered Plastic

...........................................

A-2

Alloy

........................................................................

A-8

Large Size

Engineered Plastic

.........................................

A-12

Alloy

......................................................................

A-13

Specialty Switches

...............................................

A-20

Leak Detection

.......................................................

A-22

Side-mounted units use different actuation methods because of their horizontal attitude. The basic principle, however, is the same: as a direct result of rising or falling liquid, a magnetic field is moved into the proximity of a reed switch, causing its actuation.

N

Reed Switch Reliability

The durable construction of these reed switch designs ensures long, trouble-free service. Because the effects of shock, wear and vibration are minimized, these hermetically sealed switches provide precise repeatability with no more than 1% deviation. The switch actuation points remain constant over the life of the unit. See “Reed Switch Protection” in Appendix X for information on extending the life of GEMS Level Switches.

REED SWITCH

N S

GLASS

ENVELOPE

S

N

Wide Variety

Top/Bottom Mounting

S

LS-3

Side Mounting

LS-1700

LS-7 Plastic

Specialty

LS-1950

LS-7 Alloy

LS-1900TFE

LS-2050

Bottles Slosh Shield Leak Detector

Visit www.GemsSensors.com for most current information.

Additional technical information can be found in

Appendix X.

A-1

A-2

Small Size – Engineered Plastics

LS-3 Series – Offers High Reliability, Compact Size and Low Costs in NPT, Straight and Metric Threads

Ideal for shallow tanks or restricted spaces, or for any low-cost, high volume use.

LS-3 Series are available in FDA compliant materials, consult GEMS for details.

Polysulfone Float Polypropylene Float

(Hollow)

Polypropylene Float

(Solid)

FDA

For water based liquids, with limited use in oils and chemicals.

Buna N Float

Features a low specific gravity float offering broad chemical compatibility.

With Polypropylene stem and float, switch offers broad chemical compatibility.

ALL-PVDF New 3/4˝ Polypropylene

Float

Ideal for oils and fuels.

FDA

Wetted materials of construction comply with

FDA food contact regulations.

Stem and float of corrosion-resistant

PVDF for ultra-pure applications.

See next page for details.

Common Specifications

Approvals: U.L. Recognized – File No. E45168; CSA Listed – File No. 30200. CE Declaration Available Upon Request.

NSF materials are NSF 169 Standard compliant. For NSF approved level switches contact Gems.

Switch SPST: 20 VA, 120-240 VAC. Units are shipped N.O. unless otherwise specified. Selectable, N.O. or N.C., by inverting float on unit stem.

Dimensions – 1˝ Float Models only

1/8˝ NPT

17/32˝

(13.4 mm) 1/2˝ HEX 3/8˝ – 16

L

1

= Actuation Level

(see chart below)

1/2˝ HEX

L

1

2-3/32˝

(53.2 mm)

1-9/16˝

(39.7 mm)

(25.4 mm)

S rt a i

3 g

/ 8 h t

T

1 6 h r e a d

A tl e r n a t e M o u n it n g s

1 / 8

G

1

2

/

8

8 ˝

B S P S

M 1 2 x rt a i g h t

1 .

7 5

T h r e a d

.14˝

(2.6mm)

.390˝ REF.

(9.9mm)

1/2˝

HEX

.14˝

(3.6mm)

.315˝ REF.

(8.0mm)

9/16˝

HEX

.20˝

(5.1mm)

.475˝ REF.

(12mm)

5/8˝

HEX

1˝ DIA

(25.4 mm)

T e

E r l e m c t i n a ir c it a l o n

L e a d W ri e s C a b l e C a b l e

Visit www.GemsSensors.com for most current information.

FLOAT TYPE

How To Order –

Select Part Number based on specifications required.

Stem and

Mounting Material

Polysulfone

Polypropylene 2

Float

Material

Polysulfone

Polypropylene

(Hollow)

Float

Dia.

Actuation

Level

1

3/4˝

(19.0 mm)

13/16˝

(20.6 mm)

Min. Liquid

Sp. Gravity

.75

.60

Pressure Max.

@ 70°F (21°C)

50 psi

(3 bar)

50 psi

(3 bar)

Operating

Temperature

-40°F to +225°F

(-40°C to +107°C)

-40°F to +225°F

(-40°C to +107°C)

-40°F to +176°F

(-40°C to +80°C)

Polypropylene

3

NSF Std. 169

(Kynar float retaining clip)

Polypropylene

3

(Hollow)

NSF Std. 169

13/16˝

(20.6 mm)

.60

50 psi

(3 bar)

-40°F to +225°F

(-40°C to +107°C)

Polypropylene

Nylon

PVDF

2

Polypropylene

(Solid)

Buna

PVDF

3/4˝

3/4˝

9/16˝

(14.3 mm)

7/16˝

(11.1 mm)

13/16˝

(20.6 mm)

11/16˝

(17.5mm)

1/2˝

(12.7 mm)

.90

.95

.45

.85

.86

150 psi

(10 bar) @

68°F (20°C)

Atmospheric

150 psi

(10 bar)

150 psi

(10.3 bar)

50 psi

(3 bar)

-40°F to +150°F

(-40°C to +66°C)

-40°F to +176°F

(-40°C to +80°C)

-40°F to +212°F

(-40°C to +100°C)

-40°F to +250°F (oil)

(-40°C to +121°C [oil])

-40°F to +176°F (water)

(-40°C to +80°C [water])

-40°F to +250°F (oil)

(-40°C to +121°C [oil])

-40°F to +250°F

(-40°C to +121°C)

Notes:

1. Based on a liquid specific gravity of 1.0.

2. All Polypropylene units carry a Kynar retaining clip. Accessories Available in OEM Quantities: Jam Nut, Gaskets, and Slosh Shields.

3. NSF 169 Approved unit, for water use only.

Mounting

Type

1/8˝ NPT

1/8˝ NPT

3/8˝-16

G 1/8˝-28

M12x1.75

1/8˝ NPT

3/8˝-16

G 1/8˝-28

M12x1.75

1/8˝ NPT

3/8˝-16

M12x1.75

1/8˝ NPT

1/8˝ NPT

M12x1.75

1/8˝ NPT

1/8˝ NPT

3/4˝ Diameter Floats for Tiny Tanks

Our smallest LS-3 yet!

Reliable alternative to more expensive electronic sensors.

Fits smaller devices. Less material, lower cost.

Proprietary float more buoyant than competitors.

Small yes, but with BIG performance. No other 3/4˝ float switch on the market matches our LS-3 specs. These units are ideal for potable water, medical devices and other compact appliances, such as printers. Gems proprietary float enables use in lighter-than-water fluids. NSF/ FDA compliant models available at your request. Please consult factory.

Specifications

Wetted Material

Stem and Mounting

201540

177818

Float

P/N

P/N

Magnet

177818

201540

Operating Temperature, Max.

201540

177818

Pressure, Max.

201540

177818

Polypropylene with Kynar retaining clip

Nylon

Polypropylene

Buna-N

Ceramic

212°F (100°C)

250°F (121°C) oil, -40°F to +176°F (-40°C to +80°C)

Atmospheric

150 psi (10.3 bar)

Visit www.GemsSensors.com for most current information.

Actual Size

Dimensions

17/32˝

(13.4 mm)

1/8˝ NPT

1/2˝ HEX

L

1†

2-3/32˝

(53.2 mm)

1-9/16˝

(39.7 mm)

(25.4 mm)

3/4˝ DIA

(19 mm)

† L

1

= Actuation Level

(see chart above)

Order by Part Numbers:

LS-3, 3/4˝ Polypropylene Float: 201540

LS-3, 3/4˝ Buna–N Float: 177818

Electrical

Termination

Lead Wires

Lead Wires

Lead Wires

Cable

Cable

Lead Wires

Lead Wires

Lead Wires

Lead Wires

Lead Wires

Lead Wires

Cable

Lead Wires or Cable

Lead Wires

Cable

Lead Wire

Teflon Jacketed

Lead Wires

Part Number

42295

142505

171517

171518

189739

209475

209455

209460

209465

116826

171514

189787

201540

162745

189786

177818

173250

– Stock Items.

A-3

Unique Features Make These LS-3 Models Special

These small switches feature unique configurations for special applications.

Part No. 142545

With Slosh Shield

Part No. 46999

Bottle Level

Part No. 76707

For Low Level

Cut-away version shown

Compact, all-polypropylene switch with slosh shield is ideal for use with turbulent liquids in small tanks. FDA compliant materials.

For external mounting on tanks too small to accommodate internally mounted switches. (See note below)

For detecting levels as low as 5/8˝ from tank bottom.

Use in water, some oils and chemicals.

A-4

17/32˝

(13.4 mm)

2-3/32˝

(53.2 mm)

9/16˝

(14.3 mm)

1-9/16˝

(39.7 mm)

1-1/4˝ DIA.

(31.7 mm)

Order By Part Number 142545

Materials

Stem and Mounting

All Polypropylene (Including Shield

4

)

Float

Polypropylene (Solid)

Other Wetted

Min. Liquid Sp. Gr.

.90

Operating Temperature

-40°F to +150°F (-40°C to +65.6°C)

Pressure, PSI, Max.

3

150

Switch

1

, SPST

20 VA, N.C./N.O. Dry

2

Electrical Termination

No. 22 AWG, 22˝ L., PVC Lead Wires

Notes:

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

2. Switch operation is selectable, N.O. or N.C., by inverting the float on the unit stem.

3. Maximum pressure at 70°F (21°C).

4. Consult factory for other available materials.

† L

1

= Switch actuation level, nominal (based on a specific gravity of 1.0).

1/2˝ HEX

(12.7 mm)

1-1/4˝

(31.7 mm)

3-15/32˝

(88.1 mm)

3 1/2” REF.

1/4” NPT REF.

(2) PLACES

1/8”-27 NPSM TH’D

STEM

FLOAT

ACTUATION

LEVEL

1-13/16˝

L1=3/4”

25/64˝

(10 mm)

2.09˝

(53.1 mm)

15/16˝

(23.8 mm)

1/2˝ HEX

(13 mm)

1 9/16”

DIA. REF.

1-9/16˝ DIA.

(39.6 mm)

#22 AWG WIRE,

POLYMERIC

72”-78” EXT.

46999

0.250˝

(6.4 mm)

1.86˝ DIA.

(47.4 mm)

76707

1/8˝ NPT

(3.2 mm)

1-15/32˝

(37.3 mm)

Polysulfone

Polysulfone

Brass, Aluminum, Polycarbonate, Viton A

.75

-40°F to +120°F (-40°C to +48.9°C)

50

All Polysulfone (Including Collar)

Buna N

Epoxy

-40°F to +180°F (-40°C to +82.2°C)

20 VA, N.C. Dry

No. 22 AWG, 72˝ L., Polymeric Lead Wires No. 22 AWG, 72˝ L., PVC Lead Wires

Note: LS-3 Series Bottle Level Switch is also available with any of the float materials shown on opposite page. Contact GEMS for correct part number.

– Stock Items.

Visit www.GemsSensors.com for most current information.

FLOAT TYPE

LS-7 with 5 Amp Relay

O-Ring Sealed, Water Resistant J-Box

An SPDT relay enables this LS-7 to control two independent loads up to 5 amps each.

Switching N.O. for one load and N.C. for the other. This unit is designed to operate with a load connected to each of the two outputs. These loads must be 10 watts, minimum, for correct SPDT switching. One load used alone must be connected to the N.O. terminal. With this load, which may be less than 10 watts, the unit will operate the same as an SPST unit.

Specifications

Wetted Materials

Min. Liquid Specific Gravity

Operating Temperature

Operating Pressure

Float Arc Envelope

J-Box with 5A Relay

Polypropylene

0.55

-40°F to +250°F (-40°C to +121°C)

100 psi @ 70°F, max.

1.50˝

120 VAC 50/60 Hz

Contacts: 5A – 240 VAC Res

1/3 HP – 120 VAC

5A – 28 VDC Res

Order by Part Number: 181291

Dimensions

1/2˝ NPT

2-7/8˝

(73 mm)

LS-1 – Miniature Level Switch

Extremely Compact

Easy Installation

Low Cost

This miniature level switch feature an all-polypropylene stem and float construction for broad chemical compatibility. Fluted stem resists solids build-up. Float is held in place with integral stem tangs, which simultaneously eliminates a separate retaining ring and makes inverting the float for reversing switch actuation very easy.

Specifications

Wetted Materials

Stem and Float

O-Ring

Mounting Threads

Min. Liquid Specific Gravity

Operating Temperature

Operating Pressure

Electrical Termination

Switch Operation

Mounting Attitude

Polypropylene

EPDM

M8 x 1.25˝

0.70

0°F to 175°F (-17°C to +79°C)

0 to 5 psig (0 to 0.3 bar)

22 AWG, 6˝-8˝ PVC Jacketed

Lead

N.O. Dry (May be converted to N.C. Dry by inverting float on stem)

Vertical with lead wires up.

Order by Part Number: 602881

Dimensions

6˝ TO 8˝

(254 TO 305)

M8 X 1.25

THREAD

2.32

(59.01)

1.89 REF

(48.01)

0.77

(19.56)

Ø 0.84 REF

(21.34)

5/8˝ (16 mm)

WRENCH FLAT

19/64˝

(7.5 mm)

NUT

O-RING

HEX, 11.8mm

ACROSS FLATS

STEM

ACTUATION

LEVEL (WATER)

0.88 REF

(22.29)

FLOAT

ASSEMBLY

Visit www.GemsSensors.com for most current information.

A-5

Small Size – Engineered Plastics

LS-7 Series–Compact Side Mounts are the Solution to Many Small Tanks

These low-cost units are ideal for high volume use in small tanks and vessels. Engineered plastics construction offers broad compatibility in water, oils and chemicals.

Type 3

Internal Mounting

Type 5

External Mounting

Type 7

External Mounting

Polypropylene, Nylon or Versaplast™.

ZIP CORD

LEADWIRES,

24˝

EXTENDED

5/8˝ -11

THREAD

LOCKING NUT

(NYLON)

3.84˝

(97.5 mm)

GASKET

(WHITE BUNA N

INCLUDED)

2-3/4˝

(69.8 mm)

Polypropylene, Nylon or Versaplast™.

ZIP CORD STYLE

24˝ LEADWIRES

N.C.

N.O.

5/8˝

(16 mm)

4-1/4˝

(108 mm)

2-7/8˝

(73 mm)

5/8˝ HEX

1/2˝ NPT

Polypropylene or Nylon; conduit connection.

LEAD

WIRES,

24˝

EXTENDED

1/2˝ NPT

4-1/2˝

(114 mm)

5/8˝ (16 mm)

WRENCH FLAT

19/64˝

(7.5 mm)

2-7/8˝

(73 mm)

A-6

Common Specifications

Switch Rating*: SPST, 20VA

Lead Wire Gauge: No. 22 AWG

Mounting Attitude: Horizontal.

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

more information.

Approvals

Material

Nylon X

Polypropylene X

Noryl ® X

Versaplast™ X

CE

UL

Recognized

File No.

E45168

X

cUL

Recognized

X

X

X

X

X

X

X

CSA Listed-

File No.

30200

NSF

Listed

Mat.

Std. 169

X

X X

X

Switch Operation

Depending on the mounting position, the float on these switches can rise or lower with the liquid level.

By rotating the switch 180°, the switch operation can be Normally Open or Normally Closed (except Type

12).

Types 3, 5, 7, 10 and 13

Normally Open

FLOAT ARC

ENVELOPE

Normally

Closed

Type 12 – N.C. “Drop Float” Design

MAGNET

N.C. ACTUATION RANGE

25˝ to .50˝

Media Compatibility

Media

Oil, Fuel, Hydrocarbons

Broad Range of

Chemicals and Water

Limited Chemicals and Water

Oil, Antifreeze, High

Temperatures, Corrosive Fluids,

Various Chemicals

LS-7

Compatible Types

Nylon

Polypropylene

Noryl

®

Versaplast™

FLOAT PIVOTS STAY ABOVE WATER

WATER

When the switch is mounted so that the float lowers with the liquid level, the switch is N.O.

45/64˝ REF.

When the switch is mounted so that the float rises with the liquid level, the switch is N.C.

The LS-7 Type 12 is ideal for use on food warmers, hot water heaters, steam cookers, small boilers or wherever water evaporation occurs. The switch is used effectively for either high fluid level alarms or water make up systems. The units are made of Noryl

®

, which carries NSF approval for use in potable water, and are supplied with

FDA-approved Buna gaskets.

Food

Warmer

Visit www.GemsSensors.com for most current information.

Type 10

External Mounting

Type 12

Internal Mounting

Type 13

Internal Mounting

Externally mounts through and seals non-threaded holes using a HNBR compression gasket.

Side mount “Drop Down” design for calcifying hot water applications. NSF compliant Noryl

®

.

Polypropylene or Nylon.

Note: Recommended hole size =

7/8˝ dia. x 1/32˝ - 5/32˝ thick panel.

Type 3

Internal Mounting

Type 5

External Mounting

Type 7

External Mounting

Polypropylene, Nylon or Versaplast™.

Polypropylene, Nylon or Versaplast™.

Polypropylene or Nylon; conduit connection.

 Nylon is ideal for oils and fuels.

 NSF Standard 169 polypropylene is ideal for potable water and broad chemicals.

 Versaplast™ is ideal for corrosive fluids, hot water, antifreeze, chemicals and oils.

Type 10

External Mounting

Type 12

Internal Mounting

Type 13

Internal Mounting

FLOAT TYPE

Externally mounts through and seals non-threaded holes using a HNBR compression gasket.

4.093˝

(104 mm)

3.85˝

(97.8 mm)

1.48˝

(37.6 mm)

.90˝

(23 mm)

.85˝ DIA.

(21.6 mm)

N.O.

N.C.

.33˝

(8.4 mm)

.10˝

(2.5 mm)

GASKET, HNBR (FDA Compliant)

NUT, 5/8˝-11

Note: Recommended hole size =

7/8˝ dia. x 1/32˝ - 5/32˝ thick panel.

Side mount “Drop Down” design for calcifying hot water applications. NSF compliant Noryl

®

.

ZIP CORD

LEAD WIRES

24˝ - 26˝

EXTENDED

5/8˝-11

THREAD

LOCKING

NUT

3-59/64˝ REF.

(100 mm)

BUNA

GASKET

11/16˝ DIA.

(18 mm)

2-23/32˝ REF.

(69 mm)

1-5/64˝

(27 mm)

Polypropylene or Nylon.

ZIP CORD

LEADWIRES

24˝

EXTENDED

1/2˝ WRENCH FLATS

9/16˝-24 THD.

JAM NUT (NYLON)

GASKET (BUNA 'N')

3-51/64˝

(94 mm)

2-43/64˝

(69 mm)

1-1/8˝

(29 mm)

How To Order –

Select Part Number based on specifications required.

Mounting

Type

3

5

Materials*

Stem and

Mounting

Nylon

Polypropylene

Float

Versaplast™

Polypropylene

Nylon

Versaplast™

Lead Wire

Jacket

TPE

TPE

Teflon

®

Min.

Liquid

Sp. Gr.

.65

.55

.80

.55

.65

.80

Operating Temperature

-40°F to +250°F (-40°C to +121.1°C)

-40°F to +225°F (-40°C to +107.2°C)

-40°F to +250°F (-40°C to +121.1°C)

-40°F to +225°F (-40°C to +107.2°C)

-40°F to +250°F (-40°C to +121.1°C)

-40°F to +300°F (-40°C to +148.9°C)

5 - BSP Versaplast™ TPE

.80

-40°F to +250°F (-40°C to +121.1°C)

7

10

12

Polypropylene

Nylon

Polypropylene

Nylon

Noryl

®

TPE †

TPE †

TPE

.55

.65

.55

.65

.80

-40°F to +225°F (-40°C to +107.2°C)

-40°F to +250°F (-40°C to +121.1°C)

-40°F to +225°F (-40°C to +107.2°C)

-40°F to +250°F (-40°C to +121.1°C)

-40°F to +225°F (-40°C to +107.2°C)

13 Polypropylene

* Polysulfone and Ryton® R-4 are available upon request.

† Thermoplastic Elastomer Zip Cord, 22 AWG.

Note: NSF 169 Versions available. Contact factory.

– Stock Items.

TPE † .55

-40°F to +225°F (-40°C to +107.2°C)

Operating

Pressure, Max.

Float

Arc

Envelope

Part

Number

100 psi @ 70°F

(6.8 bar @ 20°C)

100 psi @ 70°F

(6.8 bar @ 20°C)

2.20

1.25

165570

164520

182600

131100

140620

177100

100 psi @ 70°F

(6.8 bar @ 20°C)

1.25

189422

100 psi @ 70°F

(6.8 bar @ 20°C)

50 psi @ 70°F

(3.4 bar @ 20°C)

1.50

2.08

160450

160460

165800

165900

100 psi @ 70°F

(6.8 bar @ 20°C)

.70

191080

100 psi @ 70°F

(6.8 bar @ 20°C)

2.20

197050

See alloy versions on next page.

Visit www.GemsSensors.com for most current information.

A-7

Small Size - Alloys

LS-7 Series - Compact Alloy and Alloy/Plastics Side Mounts

Built for durability, our LS-7 Series switches utilize stainless steel, or zinc bodies. Ideal for any small tank or vessel destined for a rugged environment.

All-stainless steel material of construction of Types 9 and 11 is generally recognized as safe with FDA for food contact regulations.

Type 6 – External Mounting Type 8 – External Mounting

Zinc alloy body with polypropylene or nylon float. SAE

Mounting.

Type 9 – External Mounting

Zinc alloy body with nylon or polypropylene float.

Type 11 – Internal Mounting

316 Stainless Steel body with 316 SS, nylon or polypropylene float.

316 Stainless Steel body with

316 SS float.

A-8

Dimensions

Type 6

LEAD WIRES,

24˝ EXTENDED

1.40˝

(36 mm) REF.

3.38˝

(86 mm) REF.

7/8˝ (22 mm)

-14 JAM NUT

7/8˝ (22 mm)

-14UNF THD

11/16˝

(17 mm) REF.

Type 9

LEAD

WIRES,

24˝

EXTENDED

1-5/8˝ REF.

(41.3 mm)

5-5/16˝ REF.

(135 mm)

5/8˝ DIA. REF.

(15.9 mm)

5/8˝ WRENCH

FLAT

1/2˝ NPT

Type 8

5/16˝ REF.

(8 mm)

3-29/32˝ REF.

(99.2 mm)

1-1/32˝ REF.

(26.2 mm)

Common Specifications

Switch Rating*: SPST, 20VA

Lead Wire Gauge: No. 22 AWG

Mounting Attitude: Horizontal.

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

1.00˝

HEX

1/2˝ NPT

#22 AWG ZIP CORD

LEAD WIRES

24˝ EXTENDED

Type 11

LEAD WIRES,

24˝ EXTENDED

5/8˝ (16 mm)

-11 JAM NUT

WITH VITON GASKET

5/8˝ (16 mm)

-11 THD

.83 REF.

(21 mm)

4-9/16˝ REF.

(116 mm)

5/8˝ (16 mm)

DIA. REF.

Visit www.GemsSensors.com for most current information.

FLOAT TYPE

Switch Operation

Depending on the mounting position, the float on these switches can either rise or lower with the liquid level. By rotating the switch 180°, the switch operation can be Normally Open or

Normally Closed.

Normally Open

FLOAT ARC

ENVELOPE

Float Arc

Envelope

1.43

1.40

1.40

1.65

1.36

1.36

1.40

1.40

Normally

Closed

When the switch is mounted so that the float lowers with the liquid level, the switch is N.O.

When the switch is mounted so that the float rises with the liquid level, the switch is N.C.

How To Order –

Select Part Number based on specifications required.

Mounting

Type

6

8

9

11

Materials

Stem and

Mounting

Zinc

Alloy*

Zinc

Alloy*

Float

Nylon

Polypropylene

Nylon

Polypropylene

316

Stainless

Steel

316 S.S.

Nylon

Polypropylene

316 Stainless Steel

Thermoplastic Elastomer Zip Cord.

– Stock Items.

Lead Wire

Jacket

TFE †

TFE

TFE

Teflon

®

.55

.80

.65

.55

.80

Min.

Liquid

Sp. Gr.

.65

.75

.65

Operating Temperature

-40°F to +250°F (-40°C to +121°C)

-40°F to +225°F (-40°C to +107°C)

-40°F to +250°F (-40°C to +121°C)

-40°F to +225°F (-40°C to +107°C)

-40°F to +250°F (-40°C to +121°C)

-40°F to +250°F (-40°C to +121°C)

-40°F to +225°F (-40°C to +107°C)

-40°F to +300°F (-40°C to +149°C)

Operating

Pressure, Max.

100 psi @ 70°F

150 psi @ 70°F

100 psi @ 70°F

150 psi @ 70°F

300 psi @ 70°F

100 psi @ 70°F

100 psi @ 70°F

300 psi @ 70°F

Part

Number

155660

179870

160950

162795

164870

164850

164860

179445

*Zinc Alloy Material Note:

When mounted in certain cathodic metals, including stainless steel, and used in waterbased liquids, galvanic corrosion may occur. Consult factory for information.

Visit www.GemsSensors.com for most current information.

A-9

Small Size – Alloys

Rugged Durability, With Broad Heat and Pressure Capabilities, are Hallmarks of These Compact Switches

Ideal for shallow tanks or restricted spaces, or for low-cost, high volume use.

LS-1700 Series –

Buna N Float

LS-1700 Series –

Teflon ® Float

LS-1750 Series –

All Stainless Steel

LS-1755 Series –

All Stainless Steel

A-10

Offer broad chemical compatibility for general purpose use.

Also ideal for oils and water.

Dimensions

L S 1 7 0 0 S e ir e s

B u n a N F l o a t T e lf o n ® F l o a t

Rugged construction suitable for most corrosive liquids, and for high temperatures and pressures. Stainless steel is generally recognized as safe (GRAS) with FDA for food contact regulations.

L S 1 7 5 0 S e ir e s L S 1 7 5 5 S e ir e s

S t a i n l e s s S t e e l F l o a t a n d S t e m

2-1/16"

(52.4 mm)

L1†

1/8" NPT

1/2" HEX

(12.7 mm)

2-1/16"

(52.4mm)

L1†

1/8" NPT

1/2" HEX

(12.7 mm)

SPRING

2-1/16"

(52.4 mm)

L1†

3/4"

(19.1 mm)

1-1/2"

(38.1mm)

1/8" NPT

1/2" HEX

(12.7 mm)

1"

(25.4 mm)

2-21/64"

(59.1mm)

L1†

1-45/64"

(42.8mm)

1/8" NPT

1/2" HEX

(12.7 mm)

1-7/32"

(31.0 mm)

1-1/2"

(38.1 mm)

1"

(25.4 mm)

1-1/2"

(38.1mm)

1" DIA.

(25.4 mm)

FLAT

WASHER

1" DIA.

(25.4 mm)

1-1/2" DIA.

(38.1 mm)

L

1

= 9/16˝ (14.2 mm) N.O.; 13/16˝ (20.6 mm) N.C. L

1

= 1/2˝ (12.7 mm) N.O. and N.C. L

1

= 5/8˝ (15.7 mm) N.O.; 3/4˝ (19.1 mm) N.C.

† L

1

= Switch actuation level, nominal (based on a liquid specific gravity of 1.0).

Common Specifications

Electrical Termination: No. 22 AWG, 24˝ L., Polymeric Lead Wires,

(except Part No. 79990 which has Teflon

®

Lead Wires).

Approvals: Series Nos. LS-1700, LS-1750 and LS-1755 are U.L. Recognized –

File No. E45168 and CSA Listed – File No. 30200.

Switch Operation: Units are shipped N.O. unless otherwise specified. Selectable,

N.O. or N.C., by inverting float on unit stem (except for LS-1700 Series switches with Teflon

®

Floats; see selection in “How to Order” table).

How To Order –

Select Part Number based on specifications required.

Series

Number

LS-1700

Stem and

Mounting

Brass

316 S.S.

316 S.S.

Material

Float

Buna N

Teflon ®

Other

Wetted

316 S.S.,

Epoxy

Min. Liquid

Sp. Gr.

.45

.85

Operating Temperature

Water: to 180°F (82.2°C)

Oil: -40°F to +300°F (-40°C to +149°C)

-40°F to +250°F (-40°C to +121.1°C)

LS-1750 316 S.S.

316 S.S.

316 S.S.

LS-1755 316 S.S.

316 S.S.

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

** Higher pressures are temperature dependent.

316 S.S.

.70

.90

-40°F to +300°F (-40°C to +148.9°C)

-40°F to +480°F (-40°C to +204.4°C)

-40°F to +300°F (-40°C to +148.9°C)

Pressure,

PSI, Max.**

300

1000

100

275

1-1/32" DIA.

(26.2 mm)

L

1

= 37/64˝ (14.5 mm) N.O.; 53/64˝ (20.8 mm) N.C.

Switch*

SPST

20 VA

20 VA

20 VA, N.O.

20 VA, N.C.

20 VA

20 VA

20 VA

Part

Number

01701

01702

26791

27980

01750

79990

01755

Visit www.GemsSensors.com for most current information.

FLOAT TYPE

LS-77700 Series – Bent Stem Switches Provide Greatest

Buoyancy Of Any Side Mount Version

These units perform in liquids with specific gravities as low as .45; switches protrude into tank less than 3 inches.

Dimensions

Type I – 1/8˝ NPT

1/2 " HEX.

(12.7 mm)

1/8" NPT

1-3/4

"

(44.5 mm)

Type II – 3/8-24˝ Thread

3/4" HEX.

(19.0 mm)

3/8"-24 UNF-

2A THD.

1-3/4

"

(44.5 mm)

L1

L1

3/4"

(19.0 mm)

BUNA N

FLOAT

15/16

"

(23.8 mm)

3-1/4

"

(82.6 mm)

316 SS

FLOAT

1

"

(25.4 mm)

1

"

DIA.

(25.4 mm)

L

1

Dimension (based on liquid specific gravity of 1.0):

Buna N Float: 2-3/8˝ (60.3 mm) ± 3/16˝

Stainless Steel Float: 2˝ (50.8 mm) ± 3/16˝

Common Specifications

Electrical Termination: No. 22 AWG, 24˝ L., Teflon

®

Lead Wires

Approvals: U.L. Recognized – File No. E45168

Switch* SPST: 20 VA, 120-240 VAC. Switch is N.O. (Dry), but available N.C.

(Dry).

Mounting Attitude: Vertical ± 30°.

Other Wetted Materials: Float Stop is Berylium Copper or PH-15-7-MO Stainless Steel.

Grooved Stem Option: Stem may be grooved to prevent accidental or vibrational movement of float stops (grip rings).

1-1/2

"

DIA.

(38.1 mm)

3-1/4

"

(82.6 mm)

Typical Wiring Diagram

RED

RED

N.O. DRY

(N.C. DRY AVAILABLE)

Typical Installation

Type I

Shown with Buna N float.

Threads into NPT boss.

Type ll version shown.

Type II

Shown with stainless steel float. Mounts directly through tank wall.

How To Order –

Select Part Number based on specifications required.

Type

Materials

Stem and Mounting Float

I

Brass 316 Stainless Steel

316 Stainless Steel

Brass

Stainless Steel

Buna N

Brass 316 Stainless Steel

316 Stainless Steel

II

Brass

Buna N

Stainless Steel

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

– Stock Items.

Min. Liquid

Sp. Gr.

.70

.45

.70

.45

Operating Temperature

-40°F to +300°F (-40°C to +149°C)

Water: to 180°F (82°C)

Oil: -40°F to +300°F (-40°C to +149°C)

-40°F to +300°F (-40°C to +149°C)

Water: to 180°F (82.2°C)

Oil: -40°F to +300°F (-40°C to +149°C)

Pressure,

PSI, Max.

100

300

100

300

Part

Number

117711

117712

118125

118126

117715

117716

118127

118128

Visit www.GemsSensors.com for most current information.

A-11

A-12

Large Size – Engineered Plastics

Select from these Engineered Plastics for Aggressive or Ultra-Pure Liquids

Each of these series offers unique features. Choose from this selection when all-plastic material is desirable and tank space is not restricted.

LS-74780 –

All CPVC

LS-1900TFE LS-1700TFE

Particularly well suited for rough service. Ideal for use in chemical and plating applications.

Resists build-up of foreign material or sticky media.

Float travel remains uninhibited in viscous or corrosive liquids. SPDT switch.

A medium-size solution for ultra-pure liquid level sensing. Made of corrosion resistant PTFE for low particle generation.

Dimensions

LS-74780

21/32˝

(16.7 mm)

3-7/16˝

(87.3 mm)

3/4˝

(19.1 mm)

2-25/32˝

(70.6 mm)

PVC JACKETED

LEAD WIRES

1/4˝ NPT

5/8˝ HEX

(15.9 mm)

1-13/16˝

(46.0 mm)

3-15/32˝

(88.1 mm)

LS-1900TFE

13/16˝

(20.6 mm)

.92˝

(22.3 mm)

TEFLON JACKETED

LEAD WIRES

1/4˝ NPT

21/32˝ HEX

(16.7 mm)

LS-1700TFE

WIRE. 22 AWG.

TEFLON JACKETED

24˝ TO 26˝

(610 mm to 660 mm)

EXTENDED LENGTH

5/8˝ REF.

(15.9 mm)

2-1/2˝ REF.

(63.5 mm)

ACTUATION

LEVEL

2-21/32˝

(67.5 mm)

1-15/16˝

(49.2 mm)

1-31/32˝ REF.

(50.0 mm)

1-1/2˝ DIA.

(38.1 mm)

2-1/8˝ DIA.

(54 mm)

1-1/8˝

DIA. REF.

(28.5 mm)

5/16˝

DIA. REF.

(7.9 mm)

†L

1

=Switch actuation level, nominal (based on a liquid specific gravity of 1.0 and N.O. dry circuit–dimension will vary for N.C. circuit).

Common Specifications

Electrical Termination: No. 18 AWG, 24˝ L., Lead Wires

(Jacket material is indicated on dimensional drawings, above).

How To Order –

Select Part Number based on specifications required.

Series

Number

LS-74780

LS-1900TFE

Materials

Stem, Mounting and Other Wetted

CPVC

Teflon

®

Float

Min. Liquid

Sp. Gr.

.85

.80

Operating Temperature

-40°F to +180°F (-40°C to +82.2°C)

-40°F to +300°F (-40°C to +148.9°C)

Pressure,

PSI,

Max.

15

30

LS-1700TFE PTFE .86

+32°F to +212°F (0°C to +100°C)

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

** Switch operation is selectable, N.O. or N.C., by inverting the float on the unit stem. Units are shipped N.O. unless otherwise specified.

†† 100 VA switches are not U.L. Recognized.

– Stock Items.

25

1/8˝ NPT REF.

1/2˝ HEX. REF.

(12.7 mm)

#174105.

FLOAT

#174106.

RETAINING

CLIP

Switch*

SPST, 20 VA

SPDT, 20 VA

SPST, 20 VA, N.O.

SPST, 20 VA, N.C.

Part Number

Mounting Size

1/4˝ NPT 1/8˝ NPT

74780**

133299

174100

174200

Visit www.GemsSensors.com for most current information.

FLOAT TYPE

Large Size – Alloys

LS-1800 and LS-1900 Series are a Step Above Our Plastic Units for Pressure Capabilities

Excellent stability for general use in oils and water.

LS-1800 Series –

Buna N Float

LS-1800 Series –

Teflon

®

Float

LS-1900 Series –

Buna N Float

Intermediate in size, LS-1800 switches provide long life and dependability to meet a broad range of requirements.

With large float displacement, switch withstands rough service; is suitable for high viscosity liquids.

Dimensions

B u n a N F l o a t

17/32"

(13.5 mm)

2-15/16"

(74.6 mm)

7/8"

(22.2 mm)†

2-13/32"

(61.1 mm)

L S 1 8 0 0

1/8" NPT

1/2" HEX

(12.7 mm)

1-3/4"

(44.5 mm)

S e ir e s

T e lf o n

®

F l o a t

17/32"

(13.5 mm)

2-15/16"

(74.6 mm)

7/8"

(22.2 mm)†

2-13/32"

(61.1 mm)

1/8" NPT

1/2" HEX

(12.7 mm)

SPRING

21/32"

(16.7 mm)

1-3/4"

(44.5 mm)

3-3/16"

(80.9 mm)

1-3/16"

(30.2 mm)†

2-17/32"

(64.3 mm)

L S 1 9 0 0 S e ir e s

B u n a N F l o a t

1/4" NPT

5/8" HEX

(15.9 mm)

1-13/16"

(46.1 mm)

1-1/4" DIA.

(31.7 mm)

FLAT

WASHER

1-1/4" DIA.

(31.75 mm)

†L

1

= Switch actuation level, nominal (based on a liquid specific gravity of 1.0).

Common Specifications

Electrical Termination: No.18 AWG, 24˝ L., Polymeric Lead Wires.

Approvals: All Switches on this page are U.L. Recognized – File No. E45168, and are CSA Listed –

File No. 30200.

Switch Operation: Selectable, N.O. or N.C., by inverting float on unit stem (except for

LS-1800 Series switch with Teflon ® float). Units are shipped N.O. unless otherwise specified.

How To Order –

Select Part Number based on specifications required.

Series

Number

Stem and

Mounting

Material

Float

Other

Wetted

Min. Liquid

Sp. Gr.

Operating Temperature

Brass Buna N .75

LS-1800

316 Stainless

Steel

Buna N

316 Stainless

Steel, Hysol

.75

Water: to 180°F (82°C)

Oil: -40°F to +230°F (-40°C to +110°C)

Teflon

®

.65

-40°F to +250°F (-40°C to +121°C)

Brass

LS-1900 Buna N

316 Stainless

Steel

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

**LS-1800 100 VA switches are not U.L. Recognized.

316 Stainless

Steel, Hysol

.55

Water: to 180°F (82°C)

Oil: -40°F to +230°F (-40°C to +110°C)

.55

*** LS-1900 100VA unit is UL Resistive Rated.

Visit www.GemsSensors.com for most current information.

Pressure,

PSI, Max.

150

300

150

Switch*

SPST

20 VA

100 VA**

20 VA

100 VA**

20 VA, N.O.

20 VA

100 VA***

20 VA

100 VA

Part

Number

01801

35651

01807

35657

01811

01901

35676

01907

35682

A-13

Large Size – Alloys

LS-1950 – All Stainless Steel For High Pressure and Temperature

For high performance applications, the LS-1950 provides high temperature and pressure capabilities. Materials of construction comply with FDA food contact regulations.

Dimensions

1/4" NPT

5/8" HEX

(15.9 mm)

1-3/32"

(27.8mm)†

3-3/8"

(85.7 mm)

NORM. OPEN

NORM. CLOSED

2-3/4"

(69.8 mm)

Exceptionally accurate and rugged for higher temperatures and in pressurized or corrosive liquids.

For oils, water and chemicals.

2-1/16" DIA.

(52.4 mm)

† L

1

= Switch actuation level, nominal (based on a liquid specific gravity of 1.0 and N.O. dry circuit – dimension will vary for N.C. circuit).

Common Specifications

Electrical Termination: No. 18 AWG, 24˝ L., Polymeric Lead Wires

(except Part No. 79999 which has Teflon

®

lead wires).

Approvals: LS-1950 Series switches are U.L. Recognized – File No. E45168 and are CSA Listed - File No. 30200 (Part No. 79999 is U.L. Recognized only).

Switch Operation: Selectable, N.O. or N.C., by inverting float on unit stem.

Units are shipped N.O. unless otherwise specified.

How to Order –

Select Part Number based on specifications required.

Series

Number

Materials

Stem and

Mounting

Float

Min. Liquid

Sp. Gr.

Operating Temperature

-40°F to +300°F (-40°C to +149°C)

LS-1950 316 Stainless Steel 0.75

-40°F to +480°F (-40°C to +249°C)

Notes

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

2. UL Resistive Rated

Pressure,

PSI, Max.

750

Switch

1

SPST, 20 VA

SPST, 100 VA

2

SPST, 20 VA

Part

Number

01950

26717

79999

– Stock Items.

A-14

Visit www.GemsSensors.com for most current information.

FLOAT TYPE

Large Size – Alloys

When a Switch Won’t Fit In the Tank, Use a Non-Intrusive Bottle Type

Bottle type level switches are ideal for large or small tanks or where access to the inside is impractical or impossible. These units mount completely outside of the tank, at the level actuation point.

LS-800-5 Series – Single Level,

Brass or Stainless Steel Housing

LS-159000 Series – Low Cost,

Compact Aluminum Housing

Relative size compared to unit at left.

For Remote Alarms –

See Page E-27

• Adjustable Volume

• Indoor Outdoor

• Solid-State

3/4˝ NPT Ports Inline NPT Ports

Dimensions

7"

L S 8 0 0 5 – B r a s s a n d S t a i n l e s s S t e e l

VITON ® 0-RING

2-1/4"-12 UNF-2A

THR'D

1/4"-20THD

(2PLCS)

1/2" FNPT

2-5/8"

(66.7mm)

DIA. REF.

L

1

SWITCH ACTUATION LEVEL †

(SEE ORDER TABLE

FOR VALUE)

N.C.

N.O.

L S 1 5 9 0 0 0

1-1/2" HEX (38 mm)

4-1/4"

(107.9 mm)

3-1/4"

(83 mm)

1-7/8" REF.

(48 mm)

1-5/16" (33 mm) ±1/8"

2-1/4" REF.

(57 mm)

ACTUATION

LEVEL

2-3/4" REF.

(70 mm)

2-1/2"

(63.5 mm)

3/16" (5 mm)

3/4" NPT PORTS (2X)

†L

1

= Switch actuation level, nominal (based on a liquid specific gravity of 1.0).

Common Specifications

Electrical Termination: No. 18 AWG, 24˝ L., Polymeric Lead Wires (LS-800-5) / No. 22 AWG, 24˝ L., Polymeric Lead Wire (LS-159000).

Approvals: Series Nos. LS-800-5 and LS-159000 are U.L. Recognized – File No. E45168 and CSA listed – File No. LR-30200.

Switch Operation: Selectable, N.O. or N.C., by inverting float on unit stem.

Mounting Attitude: Vertical with lead wires up.

How To Order -

Select Part Number based on specifications required.

Materials

Series

Number

Float

Other

Wetted

Min. Liquid

Sp. Gr.

Pressure,

PSIG, Max.

Operating Temperature

LS-800-5

Brass

316 Stainless Steel

316

Stainless

Steel

Beryllium

Copper

S.S. ARMCO

H-15-7 MO

.75

500 @ 70°F

750

-40°F to +300°F

(-40°C to +148.9°C)

LS-159000 Aluminum Brass

316 S.S.

Buna N

Beryllium

Copper

Viton ®

.90

.50

600 @ 70°F

250 @ 70°F

* See “Electrical Data” on Page X-5 for more information. DPDT relay information is with Dimensions above.

-40°F to +300°F

(-40°C to +148.9°C)

-40°F to +250°F (oil); +180°F (water)

(-40°C to +121°C [oil]; +82°C [water])

1/8"-27 NPT

OUTLET PORT

O-RING

1-5/16"-12UNF

THREAD, REF.

FLOAT

ASSEMBLY

(SPHERICAL

SHOWN)

1/4"-18 NPT

INLET PORT

L

1

3/4˝

(19 mm)

7/16˝

(11 mm)

See

Dimensions

Switch*

Part

Number

SPST, 20 VA

172625

SPST, 100 VA

172986

DPDT

172988

SPST, 20 VA

172635

DPDT

172987

144080

SPST, 20 VA

160405

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A-15

A-16

Large Size – Alloys

Side Mounting Switches Solve the Problem of Inaccessible Tank Tops & Bottoms

These units solve the problem of point level sensing in tanks with inaccessible tops or bottoms, or at intermediate locations in larger tanks.

Operation is positive and dependable. The float pivots with changing liquid level, displacing a shuttle which magnetically actuates a hermetically sealed switch within the unit. Installation is through the tank side at the detection point.

Typical Installation

UL Approved

Explosion-Proof

LS-2050 Series – Brass and Buna N LS-2050 Series – All-Stainless Steel LS-52100 Series – All Stainless Steel

General purpose materials designed to provide reliable service in oils and water.

Ultimate strength: for pressures to 900

PSIG and temperatures to 300°F (148.9°C).

Explosion-proof models available.

Dimensions

1/2" NPT

UP

7/8"

(22.2 mm)

3-7/16"

(87.3 mm)

1-3/8"

(34.8 mm)

L S 2 0 5 0 S e ir e s

1" NPT

APPROX. ACTUATION LEVEL

CONTACTS TRANSFER ON

ASCENDING FLUID

C L

5/8"

(15.9 mm)

3-7/8"±1/8"

(98.4 mm)

2-3/8"±1/8"

(60.3 mm)

1" NPT

APPROX. ACTUATION LEVEL CONTACTS

TRANSFER ON ASCENDING FLUID LEVEL

5-1/16"

(128.6 mm)

1"

(25.4 mm)

4-1/8"

APPROX.

(104.8 mm)

2" DIAMETER BALL FLOAT

3-5/8"

APPROX.

(92.0 mm)

† Approximate de-actuation level, nominal (based on a liquid specific gravity of 1.0).

Rugged, all-stainless steel unit offers broad chemical compatibility at temperatures to 300°F

(148.9°C). Explosion-proof models available.

L S 5 2 1 0 0 S e ir e s

1" NPT

APPROX. ACTUATION LEVEL CONTACTS

TRANSFER ON ASCENDING FLUID LEVEL

5-1/16"

(128.6 mm)

1"

(25.4 mm)

3-1/4"

(82.5 mm)

APPROX.

5-9/32"

(134.1 mm)

APPROX.

* Switch Mounting dimensions are the same as shown on

the LS-2050 Series drawing (far left).

Explosion-Proof Versions

CSA or FM Approved versions are available in all-stainless steel configurations only.

Typical Example (P/N 55690 Shown):

Top View

1/2" NPT

PORTS

3-1/2"

DIA. REF.

For Remote Alarms –

See Page E-27

• Adjustable Volume

• Indoor Outdoor

• Solid-State

13/16" REF.

Side View

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FLOAT TYPE

Common Specifications

Electrical Termination: No.18 AWG, 24˝ L., Polymeric Lead Wires.

Approvals: LS-2050 Series Switches are U.L. Recognized – File No. E45168 and are CSA Listed.

Explosion-proof units are approved for Class I, Division 1, Group D hazardous areas.

Mounting Attitude: Horizontal, ±15°.

Performance

L S 2 0 5 0 S e ir e s

B r a s s M o u n it n g / B u n a N F l o a t A l -l S t a i n l e s s S t e e l

L S 5 2 1 0 0 S e ir e s

O p e r a it n g T e m p e r a t u r e

P r e s s u r e , P S I G M a x .

@ 7 0

°

F

M i n .

L i q u i d S p .

G .r

S w ti c h D i ff e r e n it a l i n L i q u i d

O i :l 4 0

W a

°

F t e t o

:r

+ t

2 o

5

+

0

1 8

°

F

0

°

( -

F

4 0

(

°

8 2

C

.

2 t o

°

C)

+ 1 2 1

°

C )

1 5 0

.

8

1 / 2 " M i n i m u m

How To Order

Select Part Number based on specifications required.

Materials

Series

Number

Stem and

Mounting

Float

Other

Wetted

Switch

1

Brass Buna N

316 Stainless Steel,

Beryllium Copper,

Teflon

®

, Ceramic

SPDT, 20 VA

LS-2050

LS-52100

316

Stainless

Steel

316

Stainless

Steel

316

Stainless

Steel

304

Stainless

Steel

Stainless Steel,

Teflon

®

, Ceramic

430 Stainless Steel,

Teflon

®

, Ceramic

SPDT, 20 VA

SPST, 100 VA, N.O.

2, 4

SPST, 100 VA, N.C.

2, 4

SPDT, 20 VA

SPST, 100 VA, N.O.

3

SPST, 100 VA, N.C.

3

Notes

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

2. Not CSA Approved.

3. Not U.L. Recognized or CSA Approved.

4. UL Resistive Rated

9 0 0

.

9

4 0

°

F t o + 3 0 0

°

F ( 4 0

°

C t o + 1 4 8 .

9

°

C )

5 0 0

.

8 5

A p p r o x i m a t e l y 3 / 4 "

Standard

Versions

30288

30290

48068

48069

52100

116971

116972

Part Numbers

With Bellows

(Details Below)

175650

Explosion-Proof

FM

55690

121753

– Stock Items.

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A-17

A-18

Large Size – Alloys

FABRI-LEVEL

Components and Kits Build Into

Custom Switches in Minutes

GEMS FABRI-LEVEL

units can be custom-assembled in minutes from standard components, right in your plant. Simple instructions are furnished with kits.

FABRI-LEVEL

Components

How to Order: Specify Part Number and quantity of each component required.

Mounting Types

Provides clearance for inserting unit in tank. 2˝ NPT Mounting must be used with stainless steel floats.

1-1/4˝ NPT 2˝ NPT

1/2˝ NPT

1/2˝ NPT

(25.4 mm)

1-1/4˝

(31.7 mm)

1-1/4˝

(31.7 mm)

1-1/2˝

(38.1 mm)

Mounting

Plug

Tube Connector

Float, Tube and Switch

Station

Tube Union

1/2˝ Tubing

Material

Brass

316 Stainless Steel

26034

26033

Part Numbers

24408

24407

Tube Union

Float, Tube and

Switch Station

Tube End

Fittings

Level Station Assemblies

Each Station is comprised of a float, tube section and switch.

Lead Wires: SPST: #18 AWG, 60˝ L., Teflon

®

;

SPDT: #22 AWG, 60˝ L., Teflon

®

Float Material

Compatible Mounting Type

1-1/4˝ NPT

Buna N

2˝ NPT

316 Stainless Steel

Float Dimensions

Operating Temperature

Pressure, PSI, Max.

Min. Media Specific Gravity

Mounting Size Switch Type Tubing Material

Brass

1-1/4˝ NPT

SPST

20 VA

Stainless Steel

Brass

SPDT

20 VA

Stainless Steel

SPST

20 VA

Brass

Stainless Steel

2˝ NPT

SPDT

20 VA

Brass

Stainless Steel

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

– Stock Items.

A

1-3/4˝

(44.5 mm)

A

1-11/16˝

(42.9 mm)

1-3/16˝ DIA.

(30.1 mm)

1-7/8˝ DIA.

(47.6 mm)

Water: to +180°F (+82°C); Oil: -40°F to +230°F (-40°C to +110°C)

150

.75

.55

Part Number

26609

26608

26737

26738

A Dim.

(101.6 mm)

4-29/64˝

(113.0 mm)

Part Number

A Dim.

— —

24410

25328

24578

25329

(101.6 mm)

4-29/64˝

(113.0 mm)

A

2-1/16˝ DIA.

(52.4 mm)

-40°F to +275°F (-40°C to +135°C)

750

.75

Part Number A Dim.

24411

24579

4-1/4˝

(107.9 mm)

4-29/64˝

(113.0 mm)

Visit www.GemsSensors.com for most current information.

Fittings and Tubing

Description

(1/2˝ Fittings)

Function

Tube

Connector

Connects tube to mounting plug, mounts unit from inside of tank.

Tube Union

Tube End

Fitting

Connects level stations or extension tubes.

Seals end of unit.

90°

Elbow

1/2˝ O.D. Tubing

10˝ Length 36˝ Length

For side entry into tank

For extending units or level station spacing.

3/8˝ NPT-M

1-3/4˝

(44.4 mm)

2-1/8˝

(53.9 mm)

1-3/16˝

(30.1 mm)

1-1/2˝

(38.1 mm)

1-1/2˝

(38.1 mm)

Material

Brass

(Nylon Ferrule)

All-316

Stainless Steel

24633

24634

24412

24413

Part Numbers

24553

24554

24631

24632

25199

25204

24637

24638

FABRI-LEVEL

Kits

FABRI-LEVEL Switch Kits contain all components for complete assembly of a 1- or 2- station level switch unit for pipe-plug mounting in your tank. Kits are available in several material and size combinations. N.O. or N.C. operation of the SPST switch is selectable by inverting the float(s) on the unit stem. Two 10˝ (254 mm) lengths of tube are furnished to space level stations as desired. Components available for custom-building other configurations are listed on the facing page and above.

Specifications

Kits use the components listed individually on the facing page and above. Please review for performance and dimensional data.

How To Order

Specify Kit Number and quantity.

Materials

Fittings Floats

Mounting NPT Kit Number

Brass

316 Stainless Steel

316 Stainless Steel

Buna N

Buna N

1-1/4˝

1-1/4˝

26128

24576

26130

26675

24577

Warning: Improper application, assembly or installation of FABRI-LEVEL™ Kits or components may result in injuries to personnel or damages.

– Stock Items.

Each Kit Contains:

1 Tube Connector

1 Mounting Plug

2 Level Stations (Switch,

Tube, Float)

2 Extension Tubes

1 Tube End Fitting

3 Tube Unions

FLOAT TYPE

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A-19

Specialty Switches

GEMS Excels in Switches for Special Requirements

The products below are examples of the custom engineering GEMS can provide to meet specific application needs. These units are ideal for use in oils and water.

TH800

SeriesTemperature/

Level Switch

LS-38760 Series –

Cushioned Float

LS-270 Series –

Bracket Mounting

Slosh Shield

U.L. Recognized – File No. E45168

°F

A-20

Level monitoring and temperature switch in a single unit. Intermediate in size; single-setting temperature sensor is in bottom of stem.

Cushioned float and switch for turbulent liquids or excessive vibration.

Easily grounded. Ideal for tank trucks, construction equipment or mobile applications.

Small, lightweight, and extremely stable in nonstatic, highly contaminated liquids. Slosh shielding minimizes effects of turbulence and helps prevent interference by foreign material. Bracket-mounted to any convenient surface.

Dimensions

TH800 T e m p e r a t u r e / L e v e l S w ti c h L S 3 8 7 6 0 S e ir e s L S 2 7 0 S e ir e s

27/32"

(21.4 mm)

1/4" NPT

5/8" HEX

(15.9 mm)

1-1/16"

(27.0 mm)

1/4" NPT

FLOAT

CUSHION

2-1/2"

(63.5 mm)

1-3/4"

(44.5 mm)

9/32" DIA.

(7.1 mm)

2 HOLES

5-3/32"

(129.4 mm)

4-1/4"

(108 mm)

1-1/2"

(38.1 mm)†

Wire diagram on page B-21

1-3/4"

(44.5 mm)

1-1/4" DIA.

(31.75 mm)

4-1/4"

(108 mm)

1-1/4"

(31.8 mm)†

3-3/16"

(81.0 mm)

1-7/8" DIA.

(47.6 mm)

1-13/16"

(46.1 mm)

FLOAT

CUSHION

3/16" DIA.

(4.7 mm)

3-3/16"

(81 mm)

2-9/16"

(65 mm)

1-3/8" ± 1/4"

(34.9 mm) †

OPEN

CLOSED

2-19/32" DIA.

(66 mm)

SLOSH

SHIELD

CUT

AWAY

T

E e r l e c t m i ir c n a it a l o n

1 8 A W G , 2 4 " L ,.

P o l y m e ir c L e a d W ri e s 1 8 A W G , 3 6 " L ,.

P o l y m e ir c L e a d W ri e s

1 8 / 2 C a b l e ,

†L

1

= Switch actuation level, nominal (based on a liquid specific gravity of 1.0).

LS-270 Series Note: Installed vertically with cable upward. Caution: Elastomer seals in the sensor and cable are subject to deterioration and aging, and therefore need to be checked regularly. Life expectancy of seals varies with application.

6 f .t

L c

,.

o n

N n e e o p c it r e o n e n w ti h w a t e r p r o o f

How To Order –

Select Part Number based on specifications required.

Series

TH800

Temp./

Level

Stem and

Mounting

Brass

Material

Float

Buna N

Other

Wetted

Beryllium

Copper,

Hysol

Min. Liq.

Sp. Gr.

.75

Operating Temperature

Water: to 180°F (82°C)

Oil: -40°F to +230°F (-40°C to +110°C)

LS-38760 Aluminum Buna N S.S., Hysol .55

-40°F to +180°F (-40°C to +82°C)

LS-270 316 S.S.

Buna N

Beryllium

Copper,

Copper

Nickel,

Polycarb.

304 S.S.

.55

-40°F to +140°F (-40°C to +60°C)

Notes:

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

2. Switches are not U.L. Recognized or CSA Listed.

3. See Page B-21 for thermostat ratings and wiring diagram. Other temperature settings are available; consult factory.

Pressure

PSI, Max.

150

150

150

Level

SPST

20 VA, N.O.

20 VA, N.C.

20 VA, N.O.

20 VA, N.C.

50 VA

2

, N.O.

50 VA

2

, N.C.

Switch

1

Temperature

3

N.C., open on +150°F

±10°F, incr.

N.O., close on +150°F

±10°F, incr.

Part

Number

57143

57144

38760

43765

43760

43980

43982

Visit www.GemsSensors.com for most current information.

SPECIALTY SWITCHES

Specialty Switches – Continued

Portable Level Switch —

Integral Mounting Magnet

Precisely monitors liquid level and is ideal for controlling filling operations and preventing overflows.

Permanent magnet attaches unit securely to steel tank wall at exact level required.

LS-750 Series — Weighted for Suspension Cable

With a compact-sized float, slosh shield and weighted collar, the

LS-750 provides liquid level detection for a wide variety of applications.

Suspend in stand pipes or sumps for leak detection duty, or drop into wells for ground-water monitoring.

Supplied with 25 feet of waterproof cable.

U.L. Recognized—

File No. E-45168.

CSA Listed-File No.

LR-30200.

LS-700F Series

Dimensions

Portable Level Switch LS-750

CABLE

LS-700F

PERMANENT

MAGNET

CABLE

10´ L.

(3 m)

SEALING

NUT

SEALING

NUT

LIQUID

TIGHT

FITTING

4 PIN AMP RECEPTACLE

LIQUID

TIGHT

FITTING

1-1/16˝ HEX.

3/4˝ N.P.T.

2˝ DIA.

(50.8 mm)

7/8˝

(22.2 mm)

3-1/2˝

(88.9 mm)

SLOSH

SHIELD

3/4˝ ACTUATION

(19.0 mm)

3-1/2˝ REF.

(88.9 mm)

1.12˝

(28.4 mm)

FLOAT

N.O.

N.C.

SLOSH

SHIELD 3-3/16˝

(81.0 mm)

5-5/16˝

(134.9 mm)

1-1/2˝

(38.1 mm)

RETAINING

RING

1-7/16˝ REF.

(36.5 mm)

BRASS

1.38˝

(35.1 mm)

STAINLESS STEEL

RETAINING

CLIP

29/32˝ DIA..

(23.0 mm)

SJO, 18/2 10´L., Neoprene 22 AWG, 2-Wire Cable 3- or 4-Pin, Quick-Connect Receptacle

L

1

= Switch actuation level. In liquid with specific gravity of 1.0, switch actuation is approximately half the distance from end of stem to mounting, or at the halfway point of float travel.

How To Order —

Select Part Number based on specifications required.

Material

Series

Portable

LS-750

Stem and

Mounting

Brass

Brass

Float

Buna N

Buna N

Other

Wetted

Aluminum,

316 S.S.

Nylon, PVC,

Beryllium

Copper

Min. Liquid

Sp. Gr.

.85

.45

Operating Temperature

Oil: -40°F to +230°F (-40°C to +110°C)

Water: to 180°F (82°C)

316 S.S.** 316 S.S.

PVDF, Viton ® .65

-40°F to 212°F (-40°C to +100°C)

LS-700F Brass 304 S.S.

— .98

-40°F to +221°F (-40°C to +105°C)

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

– Stock Items.

** Stainless steel is generally recognized as safe (GRAS) with FDA for food contact regulations.

Pressure

PSI, Max.

10

150

375

400

Switch*

Electrical

Termination

Option

SPST, 20 VA

N.O., Dry

SPST, 20 VA

N.C., Dry

SPST, 10 VA

N.C., Dry

SPST, 20 VA

N.C., Dry

PVC

Cable Jacket

Teflon

®

Cable Jacket

3-Pin

4-Pin

Overfill Protection for

Refrigerant Tanks.The

LS-700F enables safe compliance with EPA directives to recover refrigerants. These units are designed to fit standard 30# and

50# D.O.T. approved refrigerant tanks. They provide 80% full shutoff capability when used as an integral part of a recovery system.

U.L. Recognized—

File No. SA8857.

CSA Listed-File No.

LR-30200-31.

Part

Number

15208

149350

197433

128500

144900

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A-21

Leak Detection Sensors

Compact Size

Low Cost

Reliable

Hydrocarbon Detection

Warrick

®

Leak Detection Sensors are designed for single wall piping, sump alarms and other small areas. Combine with Warrick Monitoring Panels for complete leak detection systems.

DLP-1 & DLP-2 DWP-25 DFP-25 SVP-2 DSP-2

A-22

Designed to detect presence of liquid in sumps, attached access pipes, annular spaces, or locations requiring a small float-operated sensor. Two models to fit 1-1/2˝ and 2˝ standard piping.

Designed for use in the annular space of double wall fiberglass tanks to detect the presence of conductive liquid. When combined with Warrick

DMS or TA alarm panel,

DWP-25 sensors can detect the presence of water or other conductive liquids in normally dry annular spaces.

Designed for use in the annular space of double wall fiberglass tanks to detect hydrocarbon liquids.

When hydrocarbons are present, a hydrocarbon wax pellet dissolves and closes a springloaded switch to signal a leak.

This sensor is not reuseable after exposure to hydrocarbons.

Designed to monitor hydrocarbon vapors in wells or sumps by absorbing the vapors and triggering a switch. Should not be used where vapors are continuously present.

Fits in standard 2˝ pipe with cover.

Utilizes conductivity probes and a reed switch based float switch to detect the presence of liquid and differentiate between hydrocarbons and water. When combined with Warrick DMS or

TA two- channel alarm panel, the DSP-2 can discriminate between water and hydrocarbon liquids causing fault condition.

How to Order

Order by Part Number (same as Series Name for these products).

Series

DLP-1

*

DLP-2

*

DSP-2

*

Body

Components

Buna-N float,

Stainless Steel and plastic housing

Number of

Sensor Wires

2

(N.O. in resting position)

DWP-25

Stainless Steel probes in plastic housing

2

Wire

Length

16 ft.

25 ft.

DFP-25

Spring-loaded switch, plastic housing, wax pellet

2 25 ft.

SVP-2

Chemical-resistant plastic and Stainless Steel housing

2

* EPA Approved when used with Warrick TA or DMS panel. See pages E-27 and E-28 respectively.

16 ft.

O.D.

1.22˝

1.88˝

.625˝

.625˝

Part Number

DLP-1

DLP-2

DSP-2

DWP-25

DFP-25

SVP-2

Applications

• Above Ground

Storage Tanks

• Underground

Storage Tanks

• Sumps

• Dry Annular Spaces

Visit www.GemsSensors.com for most current information.

LEAK DETECTION SENSORS

LS-10 Series – Slim Profile for Interstitial Liquid Sensing

The Gems LS-10 liquid sensor accurately detects the presence of liquid in fiberglass double-wall tanks, containment sumps and double-wall pipes.

Dry contact switching ensures dependability throughout its long service life.

This reusable sensor easily fits small, interstitial spaces and senses liquid hydrocarbons or water. The unit is unaffected by hydrocarbon vapor, thereby reducing the risk of false alarms.

The LS-10 sensor’s rounded design makes it easy to remove, clean and reinstall after an alarm condition is triggered, or for maintenance.

Dimensions

HOUSING

.130˝ (3.3 mm) MAX. DIA. THRU

CABLE

FLOAT

1.50˝ (38.1 mm)

Typical Applications

 Fiberglass Double-Wall Tanks

 Double Wall Pipes

 Containment Sumps

 Piping Sumps

Your Controls

Containment

Sump

3.02˝ (76.7 mm)

LS-10

Fiberglass,

Double-Wall

Tank

.236˝ (6.0 mm) REF.

.40˝ (10.2 mm)

.40˝ ACTUATION POINT (WATER)

17∞ MAX.

Specifications

Wetted Materials:

Housing: Valox

®

Float: Foamed Polyethylene with Solid Polyethylene Pin

Tape: UHB Double-Sided 3M Tape

Cable: PVC

Pressure: Atmospheric

Operating Temperature: -40°F to +176°F (-40°C to +80°C)

Accuracy: ±1/8 inch

Switch Rating: 10W, 50-100 VDC Resistive Only, N.C. (opens on rising)

Cable: Two (2) Conductor PVC Jacketed 25 ft. Extended

Approvals: UL Recognized

How to Order –

Select Part Number based on mounting option

Series Number

LS-10

Mounting Option

25´ PVC Jacketed Cable

Part Number

156000

Note: The LS-10 sensor is a non-voltage producing device and does not contain energy storing components. However, since primary use is in hazardous locations, an appropriate intrinsically safe interface device is required for its use.

LS-10

Double-Wall Pipe

Typical Wiring Diagrams

Non-Isolated System–Single Zener Barrier

BLACK

BLACK

RED

AREA

AREA

AREA

3 2

N.C. DRY

NON-HAZARDOUS

NON-HAZARDOUS

AREA

NON-HAZARDOUS

3 AREA 2

N.C. DRY

N.C. DRY

2 CONDUCTOR

CABLE

CABLE

2 CONDUCTOR

CABLE

3 2

1

1

1

(–)

(–)

FUSE*

(+)

DC

POWER

SUPPLY

ANNUNC.

POWER

SUPPLY

ANNUNC.

(+)

Isolated System - Dual Zener Barrier

BLACK

BLACK

HAZARDOUS

AREA

AREA

AREA

NON-HAZARDOUS

AREA

SUPPLY BARRIER

3

3

AREA

1

1

SENSE

SENSE

RESISTOR

SENSE

RESISTOR

FUSE*

N.C. DRY

N.C. DRY

N.C. DRY

RED

2 CONDUCTOR

CABLE

CABLE

2 CONDUCTOR

CABLE

3

3

2 1

SIGNAL RETURN

SIGNAL RETURN

BARRIER

SIGNAL RETURN

BARRIER

(+)

If two signal lines must be maintained above ground potential, an individual zener barrier is required per single line.

DC

POWER

SUPPLY

ANNUNC.

POWER

SUPPLY

ANNUNC.

Single Safe-Pak ® Relay

BLACK

BLACK

RED

HAZARDOUS

AREA

AREA

HAZARDOUS

AREA

NON-HAZARDOUS

AREA

AREA

NON-HAZARDOUS

AREA

N.C. DRY

N.C. DRY

N.C. DRY

Safe-Pak ®

2 CONDUCTOR

CABLE

CABLE

2 CONDUCTOR

is an intrinsically safe, solid state relay

LOAD

SAFE-PAK

FUSE

FUSE

FUSE

FUSE

HOT VAC

NEUTRAL VAC

Visit www.GemsSensors.com for most current information.

A-23

A-24

Series M

Mechanical Tilt Float Level Switch

Non-Mercury Switch

Sealed Cable

Impact & Corrosion Resistant ABS Shell

N.O., N.C., SPDT Contacts

Various Cable Lengths

Color Coded Body

Designed for level control and alarm applications in difficult liquids such as sewage and waste water. Series M mechanical tilt floats are ideal for applications where the presence of mercury is a concern. Series M Switches have impact resistant ABS shell and neoprene jacketed cable.

Specifications

Cord

Contact Rating

Contact Design

Temperature Rating

Dry

Water Resistant

Overall Weight

Tether Method

Approvals

2 or 3 conductor 16 AWG wire SJOW Oil Resistant CPE

13 amp @ 120/240 VAC 1/2 hp

SPST, Normally Open or Normally Closed

Common with N.O. & N.C. (form C)

32°F to 194°F (0°C to 90°C)

32°F to 140°F (0°C to 60°C)

1.0 lbs. (not including weight)

Tie-wrap nylon, weight: 2.5 lbs.

U.L. Recognized, CSA Cert.

Dimensions

2-3/8˝

(6.03 cm)

4-5/8˝

(11.75 cm)

3-3/8˝

(8.57 cm)

1/2˝ (1.27 cm)

TIE WRAP

PUMPING RANGE

WEIGHT

PUMPING RANGE

TETHER POINT

TETHER POINT

Applications

• Level Control

• Alarms

• Sewage Lift Systems

• Slurries

• Drainage Sumps

• Wastewater Treatment

• Holding Tanks

How to Order

Use the

Bold characters from the chart below to construct a product code.

M XXX

Series

M

Contact Configuration

BLU – SPST, Normally Open, narrow angle 1

YEL – SPST, Normally Closed, narrow angle 1

RED – SPST, Normally Open, wide angle 2

WHI – SPST, Normally Closed, wide angle 2

GRE – SPDT, Form C, wide angle 2

Length

40 – 40 feet (12.19 m)

Tether Method

T – Tie W – Weight

XX X

Tether Method

Tie Wrap

Weight

Part Number

7762360

7762381

Notes:

1. Narrow angle pumping range approximately 2 in. to 8 in.

2. Wide angle pumping range approximately 5 in. to 18 in.

Visit www.GemsSensors.com for most current information.

ELECTRO-OPTIC TYPE

Electro-Optic Level Switches

Single Point

Small size

Economically priced

Built-in, solid-state electronics

No moving parts

Simple, one-unit installation

ELS Series Level Switches are low cost, compact, optical level sensors with built-in switching electronics. With no moving parts, these small units are ideal for a variety of point level sensing applications — especially where dependability and economy are a must.

Level switches are suitable for high, low or intermediate level detection in practically any tank, large or small. Installation is simple and quick through the tank top, bottom or side.

Solid state-switching ensures dependability over long service life.

The sensor offers ±1mm repeatability and broad liquid compatibility. They are not recommended for use in any liquid that crystallizes or leaves a solid residue.

General Operating Principle

The electro-optic sensor contains an infrared LED and a light receiver. Light from the LED is directed into a prism which forms the tip of the sensor.

With no liquid present, light from the LED is reflected within the prism to the receiver. When rising liquid immerses the prism, the light is refracted out into the liquid, leaving little or no light to reach the receiver. Sensing this change, the receiver actuates electronic switching within the unit to operate an external alarm or control circuit.

Contents Page Start

Engineered Plastic

...............................................

A-26

Alloy

............................................................................

A-30

Opto-Pak

...................................................................

A-33

Industry’s Largest Selection!

ELS-950

ELS-1100

ELS-1100HTS

ELS-1150

Stainless Steel

LED LED

Receiver Receiver

Prism

Light from

LED

Prism

Liquid immersing the sensing prism.

Light

Lost in

Liquid

Liquid below the sensing prism.

Reflective Surface

Any optical sensor may be affected by reflective surfaces. Consult Gems if prism is to be less than 2 inches from any reflective surface.

Typical Applications

Medical laboratory • Food and beverage systems • Pharmaceuticals • Petrochemicals

• Leak detection • Hydraulic reservoirs • Machine tools

Intermediate Liquid

Level Sensing

ELS-1100 Series;

3/8˝ Conduit

Model. Pipe Leak

Detection

ELS-1100FLG

ELS-1100TFE

Typical Wiring Diagrams - For all electrooptic units not otherwise specified.

*

INPUT POWER

+ VDC

RED

WHITE

BLACK

SWITCH

YOUR CONTROLS

LOAD

+ VDC

* *

INPUT

POWER

+ VDC

RED

WHITE

BLACK

SWITCH

DOUBLE-WALL

PIPE

LOAD

+ VDC

* *

INPUT

POWER

+ VDC

RED

WHITE

BLACK

SWITCH

ELS-1100 SWITCH DOUBLE-WALL

TANK

ELS-1100 SWITCH

* TTL/CMOS Output-For levels greater than 5 volts, a 10K

pull-up resistor is required at the output.

** Maximum load=40mA @ 30VCD.

Visit www.GemsSensors.com for most current information.

A-25

A-26

ELS-950 Series

Rugged Electro-Optic Level Sensors

The ELS-950 Series represents Gems' smallest electro-optic level sensors developed to monitor a broad range of media including OHV type fluids.

Our UL-approved design features a TPE over-molded electronics insert, TPE insulated wires, and fluorocarbon o-ring seals that create a watertight, environmentally resistant assembly, ideally suited for use in harsh environments offering excellent temperature and pressure capabilities.

The ELS-950 is excellent for industrial OEMs requiring a solid-state sensor for small space and high temperature environments.

Specifications

Materials

Housing

Prism

O-Ring

Polysulfone (Contact Gems for alternative material types)

Polysulfone

Fluorocarbon (1/4˝ MNPT - None)

Electronics

Operating Pressure

Operating Temperature*

Current Consumptions (No Load)

5 VDC

Over-molded TPE

0 to 250 PSI (0 to 17 bar) maximum

-40°F to +230°F (-40°C to 110°C)

4 mA No Load

12 VDC

Output

Repeatability

Lead Wires

Approvals

10mA No Load

Sink 40 mA max., up to 30 VDC

±1 mm

3x TPE Insulated; 22 AWG

CE, UL file No. E108913

IP66/67 Rating

ROHS Compliant

* These switches are not for use in freezing liquids or steam/high condensation environments.

Contact Gems for alternative solutions.

How To Order

Specify Part Number based on Input and Output Condition required.

Input

Power

5 VDC

±10%

12 VDC

±10%

Actuation

Condition

Wet

Dry

Wet

Dry

Lead Wire

Length

6 inches

2 meters

6 inches

2 meters

6 inches

2 meters

6 inches

2 meters

* Supplied with standard fluorocarbon o-ring.

– Stock Items.

1/4˝ MNPT

224504

226545

224505

226546

224506

226547

224507

226548

Mounting Type

1/2˝- 20UNF-2B*

224501

226541

224502

226542

224503

226543

223625

226544

M12x1-8*

224508

226549

224509

226550

224510

226551

224511

226552

Ro HS

GE

MS COMPLIAN

®

T

Ro HS

MS COMPLIAN

File No. E108913

Typical Applications

• Coolant reservoir monitoring and warning

• Medical diagnostic, sterilizer, washers and dialysis equipment

• Low lubricant warning on machine tools, generator sets, on- or off-highway vehicles

• Low level warning in hydraulic reservoirs

• Plastic over flow bottles, plastic radiators

• Leak detection for drip pans

Dimensions

REF. 1/2˝-20 UNF-2A

TH’D SHOWN

‘O’-RING

5/8˝ (16) HEX.

LEAD WIRES in

(mm)

3/4˝

(19.1)

21/32˝

(16.3)

(119.8)

EXTENDED LENGTH

Wiring Diagrams

V

+

5 - 12

VDC

+

External Load

RED

BLACK

SENSOR

LOAD

BLUE

V

+

5 - 12

VDC

+

Relay Output

RED

BLACK

BLUE

SENSOR

Visit www.GemsSensors.com for most current information.

ELECTRO-OPTIC TYPE

General Purpose ELS –1100 Series

Satisfies Most Applications

These polysulfone units are both compact and economical. They feature a variety of mountings, power requirements and electrical terminations to make it easy to find a perfect match for your application.

Specifications

Materials

Housing and Prism

Operating Pressure

Operating Temperature*

Current Consumption

Output

Repeatability

EMI Susceptability

Polysulfone or Nylon

0 to 150 PSI, Maximum

0°F to 176°F (-17.8°C +80°C)

18 mA, Approximately

TTL/CMOS Compatible. Open Collector Output May Sink 40 mA

UP TO 30 VDC.

±1 mm

Meets (MIL-STD-461B Part 2 Modified) Specification of 10 V/M for Frequency Range 30 to 1000 MHz

(Except 609 MHz = 9 V/M and 679 MHz = 7.5 V/M).

* These switches are not for use in freezing liquid or steam/high condensation environments.

Contact Gems for alternative solutions.

Dimensions

1/4˝ NPT Mounting 1/4˝ NPT Mounting with 3/8˝ Conduit

1/2˝ Straight Thread Mounting with O-Ring

M12x1-8g Straight Thread with O-Ring

U.L. Listed

File No. E108913

“Fish” Pull Ring

2-5/32"

(54.7 mm)

LEAD WIRES

EPOXY

ENCAPSULATED

5/8" HEX

(15.9 mm)

1/4" NPT

2-5/32"

(54.7 mm)

3/8" NPT

MOUNTING

5/8" HEX

(15.9 mm)

1/4" NPT

2-5/32"

(54.7 mm)

.47" REF.

5/8" HEX

(15.9 mm)

VITON ®

O-RING

1/2" - 20

UNF 2A

2-5/32"

(54.7 mm)

.47" REF.

CABLE

5/8" HEX

(15.9 mm)

VITON ®

O-RING

M12 x 1-8g

2-5/8" REF.

(66.7 mm)

5/8" HEX.

(15.9 mm)

REMOVABLE

PVC FISH

PULL RING

Electrical

Termination

Lead Wires, 22 AWG, PVC Jacketed, 12˝ to 14˝ Extended

25´ Cable, 22 AWG,

PVC Jacketed

How To Order

Specify Part Number based on Mounting Type, Input Power and Output Condition required.

Input Power

5 VDC

10-28 VDC

Probe Condition at Current SInk

Wet

Wet

Dry

1/4˝ NPT

Polysulfone

138167

142700

143570

1/4˝ NPT & 3/8˝ Conduit

Polysulfone Nylon

Mounting Type

1/2˝

Straight Thread

Polysulfone

144225

143585

143590

175631

157750

175632

144235

143580

143575

– Stock Items.

Intrinsically-Safe Versions

GEMS ELS-1100 Switches may be rendered intrinsically-safe for Class I, Division 1,

Group C & D when used with appropriate GEMS Zener Barriers. Call Gems Sensors for special ELS-1100-IS (intrinsically-safe) part numbers and Installation Bulletins 148745 and 148744, File No. E44570.

M12x1-8g

Straight Thread

Polysulfone

166541

169555

169556

Extended Power and Switching Capabilities of 12 VDC Models with Gems.

Converts TTL output signal to 5 Amp relay output. Available as open circuit board or mounted in a NEMA 4X enclosure (pictured). See Page A-33.

“Fish” Pull Ring

Polysulfone

143577

148973

Visit www.GemsSensors.com for most current information.

A-27

A-28

ELS –1100HT

Handles Temperatures to 212°F

Slightly larger than the ELS-1100, the “HT” or High Temperature version is made from high performance Isoplast

®

plastic. While maintaining broad chemical compatibility, these units also handle fluid temperatures to 212°F. They feature 3/8˝ NPT mountings and the shortest of any of our plastic electro-optic switch bodies – HTS versions are a mere 1/2˝ long!

Typical Applications

Coolant reservoir monitoring

Medical diagnostic and sterilizer equipment

Low lubricant warning on machine tools

Low level warning in hydraulic reservoirs

Specifications

Materials

Housing and Prism

Operating Pressure

Operating Temperature*

Current Consumption

Output

Repeatability

Isoplast

TTL/CMOS Compatible.

Transistor Output with 10K Pull Up Resistor May Sink 18 mA.

12 VDC input power units switch a maximum 5 VDC on output

±1 mm

®

0 to 150 PSI, Maximum

-40°F to +212°F (-40°C +100°C)

45 mA, Approximately

* These switches are not for use in freezing liquids or steam/high condensation environments.

Contact Gems for alternative solutions.

Wiring Diagrams

Transistor Output

+5 12 VDC or 5 VDC

WHITE

RED

BLACK

SWITCH

OUTPUT*

TTL Compatible Output

+ 5 VDC

RED

WHITE

SWITCH

BLACK

*CAN DRIVE 10 TTL

LOGIC GATE INPUTS

How To Order

HT Series

Specify Part Number based on Input and Output Condition required.

Input Power

Probe Condition at Current Sink

Wet Dry

5 VDC

153061 153062

12 VDC*

153063 153064

*12 VDC input power units switch a maximum 5 VDC on output.

Note: Extend the power and switching capabilities of 10-28 VDC models with Gems Opto-Pak Controllers.

HTS Series - 5 VDC Input Only

Specify Part Number based on Wet or Dry switch actuation and mounting type.

Mounting Type

3/8˝ NPT

M16x2

Probe Condition at Current Sink

Wet Dry

181674

191341

181675

191342

ELS-1100HT

File No. E108913

“Short”

HTS Version

ELS-1100HTS

File No. E108913

Dimensions

HT Series

(50.8 mm)

3/8˝ NPT 3/4˝ HEX

(19.0 mm)

Epoxy

Encapsulated

Lead Wires

#22 AWG, Polymeric,

12˝ to 14˝

Extended

HTS Series

3/8˝ NPT Mounting

1.38˝

Ref

.55˝

Ref

3/8˝

NPT

3/4˝

HEX

Epoxy

Encapsulated

Lead Wires

#22 AWG, Polymeric,

12˝ to 14˝

Extended

M16 x 2 Straight Thread

Mounting with O-Ring

1.38˝

Ref

.55˝

Ref

3/4˝

HEX

Lead Wires

#22 AWG, Polymeric,

12˝ to 14˝

Extended

M16 x 2

Viton ® O-Ring

Extended Power and Switching Capabilities of 12 VDC Models with Gems.

Converts TTL output signal to 5 Amp relay output. Available as open circuit board or mounted in a NEMA 4X enclosure (pictured). See Page A-33.

Visit www.GemsSensors.com for most current information.

ELECTRO-OPTIC TYPE

ELS-1100TFE Teflon

®

For Ultra-Pure or Aggressive Fluids

When high purity or resistance to chemical attack is vital, ELS-1100TFE sensors are the ultimate solution. They feature a pure Teflon

®

body and prism construction. Even the

Hypalon

®

vapor barrier and Teflon

®

coated lead wires give evidence to the care we’ve taken to make this the perfect liquid level sensor for pharmaceuticals, semiconductor manufacturing, food and beverage, chemical processing, or anywhere purity or chemical resistance is the major criteria.

Specifications

Materials

Housing and Prism

Operating Pressure

Operating Temperature*

Input Voltage

Current Consumption

Output

Repeatability

EMI Susceptability

Teflon

®

0 to 150 PSI, Maximum

0°F to 176°F (-17.8°C +80°C)

10 - 28 VDC

18 mA, Approximately

TTL/CMOS Compatible. Open Collector Output May Sink 40 mA

Up to 30 VDC.

±1 mm

Meets (MIL-STD-461B Part 2 Modified)

Specification of 10 V/M for Frequency Range 30 to 1000 MHz

(Except 609 MHz = 9 V/M and 679 MHz = 7.5 V/M).

* These switches are not for use in freezing liquid or steam/high condensation environments.

Contact Gems for alternative solutions.

† See Page A-25 for Wiring Diagrams

Dimensions

2-1/2˝ REF.

.50˝

REF.

1/4˝

NPT REF.

5/8˝

HEX. REF.

Cable,TFE Jacket

Optional Hypalon ®

Cable Seal

Boot,

3/8˝ NPT

Conduit Connection

How To Order

Specify Part Number based on Output Condition and Boot Option.

Probe Condition at Current Sink

Wet

Dry

Part Number

With Cable Boot No Cable Boot

187595

185600

173800

173700

ELS-1100FLG Flange Mounting for

Installations Without Threaded Holes

The easy solution for thin wall tanks (≤1/4˝ thick): ELS-1100FLG Series. No threads needed with these flanged units. Slip through a .75˝ hole and tighten the jam nut; Viton ® gasket forms a tight seal. Ideal for sheet metal, molded plastic tanks and medical applications where elimination of exposed threads removes potential bacterial breeding grounds.

Specifications

Materials

Housing and Prism

Operating Pressure

Operating Temperature*

Input Voltage

Current Consumption

Output

Repeatability

EMI Susceptability

Polysulfone

0 to 150 PSI, Maximum

0°F to 176°F (-17.8°C +80°C)

10 - 28 VDC

18 mA, Approximately

TTL/CMOS Compatible.

Open Collector Output May Sink 40 mA Up to 30 VDC.

±1 mm

Meets (MIL-STD-461B Part 2 Modified)

Specification of 10 V/M for Frequency Range 30 to 1000 MHz

(Except 609 MHz = 9 V/M and 679 MHz = 7.5 V/M).

* These switches are not for use in freezing liquid or steam/high condensation environments.

Contact Gems for alternative solutions.

† See Page A-25 for Wiring Diagrams

Dimensions

2.16˝

REF.

Lead Wires

0.75˝

DIA.

1/8˝ Thick Viton ®

1/4˝ Max. Wall

Thickness

Gasket

How To Order

Specify Part Number based on Input Power and Output Condition

Required.

Input Power

5 VDC

10-28 VDC

Probe Condition at Current Sink

Wet Dry

187575

187585

187590

187580

Extended Power and Switching Capabilities of 12 VDC Models with Gems.

Converts TTL output signal to 5 Amp relay output. Available as open circuit board or mounted in a NEMA 4X enclosure (pictured). See Page A-33.

Visit www.GemsSensors.com for most current information.

A-29

ELS-950M Series

Rugged Electro-Optic Level Sensors

The ELS-950M Series represents Gems' most compact alloy-housed electro-optic level sensors. They monitor a broad range of media including OHV type fluids.

Our UL-approved design features a brass housing, fused glass prism, and TPE insulated wires. They provide a durable, watertight, and environmentally resistant assembly, ideally suited for use in harsh environments including outdoors and engine bays. They offer excellent temperature and pressure capabilities. The ELS-950M is excellent for industrial

OEMs requiring a solid-state sensor for small space and high temperature environments.

Specifications

Materials

Housing

Prism

O-Ring

Brass

Fused Glass

Fluorocarbon (1/4˝ MNPT - None)

Electronics

Operating Pressure

Operating Temperature*

Current Consumptions (No Load)

5 VDC

Over-molded TPE

0 to 250 PSI (0 to 17 bar) maximum

-40°F to +230°F (-40°C to 110°C)

4 mA No Load

12 VDC

Output

Repeatability

Lead Wires

Approvals

10mA No Load

Sink 40 mA max., up to 30 VDC

±1 mm

3x TPE Insulated; 22 AWG

CE, UL file No. E108913

IP66/67 Rating

ROHS Compliant

* These switches are not for use in freezing liquids or steam/high condensation environments.

Contact Gems for alternative solutions.

How To Order

Specify Part Number based on Input and Output Condition required.

Input

Power

Actuation

Condition

Lead Wire

Length

5 VDC

±10%

12 VDC

±10%

Wet

Dry

Wet

Dry

6 inches

6 inches

6 inches

6 inches

* Supplied with standard fluorocarbon o-ring.

1/4˝ MNPT

232175

232176

232177

232178

Mounting Type

1/2˝- 20UNF-2B*

232171

232172

232173

232174

M12x1-8*

232179

232180

232181

232182

Ro HS

GE

MS COMPLIAN

®

T

Ro HS

MS COMPLIAN

File No. E108913

Typical Applications

• Coolant reservoir monitoring and warning

• Low lubricant warning on machine tools, generator sets, on- or off-highway vehicles

• Low level warning in hydraulic reservoirs

• Leak detection for drip pans

Dimensions

3/4˝

(19.1)

25/32˝

(19.6)

6˝ - 8˝

(152.4 - 203.2)

EXTENDED LENGTH

REF. M12 x 1-8g

TH’D SHOWN

5/8˝ (16) HEX.

‘O’-RING

Wiring Diagrams

V

+

5 - 12

VDC

+

External Load

RED

BLACK

LOAD

BLUE

LEAD WIRES

SENSOR in

(mm)

V

+

5 - 12

VDC

+

Relay Output

RED

BLACK

BLUE

SENSOR

A-30

Visit www.GemsSensors.com for most current information.

ELECTRO-OPTIC TYPE

ELS-1150

Compact Electro Optic Level Switch available in

Nickel-Plated Steel or Stainless Steel

The enhanced ELS-1150 series is the highest performing electro optic level switch from

Gems Sensors. At just 1.38” long, the ELS-1150 has been upgraded with a micro processor board design to provide a wide range of capabilities including sinking and sourcing and time delay outputs. The strong fused glass prism eliminates leak potential and is capable of handling extreme temperature and pressure applications up to 2500 psi. The ELS-1150 explosion-proof series is available in versions with wide voltage ranges (see ELS-1150XP).

Built with solid state reliability, the sensor is available at an affordable price in Nickel-

Plated Carbon Steel or Stainless Steel. The compact size of the sensor makes them ideal candidates for monitoring the small, pressurized vessels found in HVAC, refrigeration and hydraulic applications in Oil and Gas. The sensors are most commonly used for low, high and intermediate level detection in a variety of media.

The stainless steel version (ELS-1150SS) is excellent for application requiring corrosion resistance and is ideal for acids, solvents and dielectric water applications. An explosion proof version, ELS-1150XP, is excellent for applications in Oil & Gas that require small, accurate level sensing of constant media (ie. hydraulic fluid or coolant).

* Higher temperature versions available up to 125ºC.

Contact our factory experts for additional ordering information.

Applications

• Hydraulic and lubricating oil reservoirs

• Critical fluid level monitoring on machine tools, compressors, chillers and other industrial OEM equipment

• Corrosive liquids such as: acids, solvents, and dielectric water applications

• Medical Equipment; Anesthesia, Histology

Specifications

Mounting

Materials

Housing

Prism

Operating Pressure

Operating Temperature*

Current Consumption

Output

Electrical Termination

Repeatability

Approvals**

1/2˝ NPT, 3/4˝-16 Straight Thread

Nickel-Plated Carbon Steel or Stainless Steel

Fused Glass

0 to 2500 PSI, Maximum

-40°F to +212°F (-40°C to +100°C)

~45 mA

Open Collector Output, 18 mA Sink, Max.

22 AWG, Polymeric, 12˝ to 14˝ Extended Lead Wires

±1 mm

CE, UL File No. E108913, CUL

* These switches are not for use in freezing liquid or steam/high condensation environments.

For higher temperature versions up to 257°F (125°C), and for other alternate requirements,

contact Gems factory.

** Carbon Steel model only.

Wiring Diagrams - Typical

+12 VDC or +5 VDC

R

LED

OUTPUT

18 mA

MAX.

RED

WHITE

BLACK

+12 VDC or +5 VDC

LOAD

18 mA

MAX.

RED

WHITE

BLACK

Note: Inductive loads must be diode suppressed.

How To Order

Specify Part Number based on Input Power/ Output Condition and material required.

Input

Power

5 VDC

12 VDC

Probe Condition at Current Sink

Wet

Dry

Wet

Dry

Nickel-Plated Steel Housing

1/2˝ NPT

Mounting

3/4˝ – 16

Straight Thread

194469 195201

194470

194471

194472

195202

195203

195204

Stainless Steel Housing

1/2˝ NPT

Mounting

205486

205487

205490

205495

ELS-1150

File No. E108913

Dimensions

1/2˝ NPT Mounting

1/2˝ NPT

Extended Power and Switching Capabilities of 12 VDC Models with Gems.

Converts TTL output signal to 5 Amp relay output. Available as open circuit board or mounted in a NEMA 4X enclosure (pictured). See Page A-33.

Visit www.GemsSensors.com for most current information.

Lead Wires

Epoxy

Encapsulated

1.38˝

(35 mm)

7/8˝ HEX

(22 mm)

ELS-1150SS

3/4˝ - 16 Straight

Thread Mounting

7/8˝ HEX

(22 mm)

O-RING

3/4˝-16UNJF 3A

Mounting Attitude

These units must be mounted horizontally or up to 45° from horizontal only.

UP TO

45 ˚

A-31

A-32

ELS-1150XP

FM-Approved Explosion-Proof

The explosion-proof ELS-1150XP series is designed for use in areas containing flammable bases or vapors in quantities sufficient to produce explosive or ignitable mixtures. It is FM-Approved for use with virtually all hydrocarbon based liquids, as well as with combustible atmospheres containing dusts of coal, coke, flour, starch of other grain.

These solid-state level sensors are available in nickel-plated carbon steel or stainless steel. The strong fused glass prism eliminates leak potential and is capable of handling high temperature and pressure applications up to 5000 psi. The compact size of the sensor makes them ideal candidates for monitoring the small, pressurized vessels found in oil, gas and petrochem environments.

Applications

• Storage Tank Level Monitoring

• Chemical Injection

• Remote Level Monitoring

• Well Head Automation

Specifications

Mounting

Materials

Housing

Prism

Operating Pressure

Operating Temperature

Input Voltage

Current Consumption

Output

Electrical Termination

Approvals

Dimensions

0.65 TYP.

(16.51)

2.00 REF.

(50.8)

0.702

(17.83)

1/2˝ NPT

Nickel-Plated Carbon Steel or Stainless Steel

Fused Glass

0 to 5000 PSI, Maximum (10000 PSI Proof)

-40°F to +257°F (-40°C to +125°C)

5-28 VDC ±5%

~1 mA

Open Collector Output,

100 mA Sink @ 30VDC, Max.; 100 mA Source, Max.

FM Approved Class I, Div. I Groups A, B, C, D

Class II/III, Groups E, F, G

RED

30 VDC MAX

@ 100mA

R

LED

OUTPUT

100mA

MAX.

WHITE

BLACK

5-28 VDC

RED

LOAD

100mA

MAX.

WHITE

BLACK

6FT ±2˝ EXTENDED FROM UNIT

POTTED FULL

7/8˝ A.F.

FM

Wiring Diagrams - Typical

Sinking

5-28 VDC

30 VDC MAX

@ 100mA

R

LED

OUTPUT

100mA

MAX.

5-28 VDC

RED

WHITE

BLACK

LOAD

100mA

MAX.

RED

WHITE

BLACK

Sourcing

5-28 VDC

R

LED

OUTPUT

100mA

MAX.

RED

WHITE

BLACK

5-28 VDC

RED

LOAD

100mA

MAX.

WHITE

BLACK

Note: Inductive loads must be diode suppressed.

Mounting Attitude

These units must be mounted horizontally or up to 45° from horizontal only.

SEE “ETCHING DETAIL”

FOR INFO

1/2˝ NPT

(2 PLACES)

How To Order

Specify Part Number based on Output Logic State and material required.

Output Logic State

Wet - Sink

Dry - Sink

Wet - Sourcing

Dry - Sourcing

Nickel-Plated Steel Housing

227201

227202

227203

227204

Stainless Steel Housing

227257

227256

227255

227254

UP TO

45 ˚

Extended Power and Switching Capabilities of 12 VDC Models with Gems.

Converts TTL output signal to 5 Amp relay output. Available as open circuit board or mounted in a NEMA 4X enclosure (pictured). See Page A-33.

Visit www.GemsSensors.com for most current information.

5-28 VDC

R

LED

OUTPUT

100mA

MAX.

5-28 VDC

RED

WHITE

BLACK

LOAD

100mA

MAX.

RED

WHITE

BLACK

OPTO-PAK

®

CONTROLLERS

Opto-Pak

®

Controllers for GEMS Electro-Optic Switches

Extend power and switching capabilities of 12 VDC Electro-Optic switches

Converts TTL output signal to an SPDT 5 Amp relay output.

Operates with 12 VDC ELS-1100, ELS-1100HT*, ELS-1150,

ELS-1200* and ELS-300 Series Electro-Optic Switches.

Available as open board or mounted in NEMA 4X junction box.

GEMS Opto-Pak Controllers convert standard 110 VAC line current to the 12 input power required for ELS-1100 and ELS-300 operation, and provide an SPDT, 5 Amp relay output for direct control of moderate loads. Two models are available: an open circuit board Opto-Pak

Controller for incorporation into custom enclosures, and the self-contained, NEMA 4X model pictured here.

*12 VDC versions only.

Specifications

Voltage Input

Maximum Current Draw

Relay Output

Operating Temperatures

Electrical Connections

115 VAC ±10%, 50/60 Hz

70 mA @ 120 VAC

SPDT; 5 Amps @ 115 VAC, 5 Amps @ 30 VDC

-13°F to + 158°F (-25°C to + 70°C)

1/4˝ Male Spade Terminals*

*Ten (10) 1/4˝ female spade connectors (not shown) shipped loose with each unit.

Dimensions

Open Circuit Board Type

3-13/16"

(96.8 mm)

2-31/32"

(75.4 mm)

NEMA 4X Type

4-15/16"

(125.4 mm)

+

+

+

+

+

4" LONG,

APPROX.

GEMS

OPTO-PAK

Electro-Optic

Controller

POWER OUTPUT

INPUT VOLTAGE 120VAC

50/60 Hz

P/N 149535

2-1/2"

(63.5 mm)

ASSEMBLED UNIT

Green and Red LEDs indicate power and output status.

Typical Applications

Works with 12V units:

• ELS-1100

• ELS-1100HT

• ELS-1200

• ELS-1100FLG

• ELS-1150

• ELS-950

ALARM

Typical Wiring

Normally Open

RED LED

(RELAY)

GREEN LED

(POWER)

N.O.

C

N.C.

115 VAC

AC

+

O

-

+

(+)

(-)

WHITE (OUTPUT)

RED (+V)

BLACK (GND)

ELS-1100

SWITCH

TANK

ALARM

Normally Closed

N.O.

C

N.C.

115 VAC

AC

O

-

+

(+)

(-)

115 VAC

How To Order

Specify Opto-Pak™ Controllers by Part Number.

Description

Open Board

NEMA 4X Enclosure

Part Number

149536

149535

115 VAC

Visit www.GemsSensors.com for most current information.

A-33

A-34

ExOsense

Piezo-Resonant Sensors

Non-Intrusive

Repeatable

Easy to Install – Easy to Use

ExOsense™ is the first affordable, non-intrusive liquid level sensor for plastic fluid containers. ExOsense™ sensors adhere to the outside of tanks, bottles and vessels, and are unaffected by the color or transparency of the plastic. Liquids inside the bottle are untouched, so with ExOsense™ there is no issue of material compatibility or contamination.

Best of all, ExOsense™ sensors fit any size and shape vessel, from small containers to large tanks.

Specifications

Compatible Plastic Bottle Materials

Polyethylene (PE), Polypropylene (PP)

Bottle Materials Not Recommended

Teflon

®

family, or Any Foamed Core Plastics

Min. Bottle Diameter for Round Bottles 3˝ (76.2 mm)

Bottle Wall Thickness

Termination of Sensor

Input Power Supply (volts)

0.04˝ to 0.15˝ (1.0 mm to 3.8 mm)

Mini USB Style Connector to Electronics

4.75 to 5.25 VDC (Optional Voltage Regulator available for 6 to 32 VDC.)

Power Consumption (current)

Calibration

<40mA Typ. @ 5 VDC

No User Calibration Required. Pre-configured for

Container Materials, Wall Thickness, & Output Options.

Works on Bottle Materials or Wall Thickness Without

Output Configuration

Switch Condition

Standard Response Time

Delay Range

RFI/EMI Susceptibility

Agency Approvals

Operating Temperature

Sensor

Electronics

Repeatability

Accuracy

Sealing Capability

Operating Principle

Open Collector; 40 mA, Max.

Normally Open/Normally Closed

2 msec.

0 to 60 Seconds, Standard is No Delay,

Optimal is 0 to 60 Seconds.

3v/m

UL 508 Listed (File E 305671),

CE & IEC 61326 (RFI/EMI)

32°F to158°F (0°C to 70°C)

32°F to149°F (0°C to 65°C)

±0.039˝ (±1 mm)

±0.063˝ (±1.6 mm)

IP65

Our sensor incorporates proprietary transducer technology employing piezoelectric material.

When piezoelectric material is excited, it creates an acoustic signal as a function of the natural resonance of the material. ExOsense™ sensors generate this acoustic signal, direct it through the bottle wall and sense the reflected pulse.

The amount of energy that is reflected is determined by the “acoustic impedance* mismatch” of the materials in use. For example, if sound passes through two materials with similar acoustic impedances (figure 1), very little energy will be reflected. If sound passes through two materials with dissimilar impedance values (figure 2), the majority of the acoustic energy will be reflected. This acoustic impedance mismatch provides the basis for the detection of liquid level.

* Acoustic Impedance: a material property defined as the product of sound velocity and material density. The relative transmission and reflection at an interface are governed in part by the acoustic impedances of the materials on each side of the interface. The letter Z is used for acoustic impedance and is expressed in [kg/s m2] = 1 Rayl:

Water Z = 1.5 MRayls; Air Z = 0 MRayls

Typical Applications

Fluid Monitoring:

• Ink handling systems

• Water purification systems

• Pesticide management and usage

• Water treatment systems

• Fluid storage tanks

• Coolant

• Saline

• Nuclear liquid wastes

• Containment systems

• Oil water separation systems

• Semiconductor fabrication

• Waste

• Chemicals

• Detergent/wash

Fig. 1

Fig. 2

U.S. Patent

7,360,417

Vessel

Wall

Z

PLASTIC

= 1.8

Z

WATER

= 1.5

Z

PLASTIC

= 1.8

Z

AIR

Z = Acoustic Impedance

= 0

Visit www.GemsSensors.com for most current information.

PIEZO-RESONANT TYPES

Super Simple Installation

1. Peel & Stick

Peel the adhesive cover off the sensor and stick it on the bottle where you want to indicate the level.

2. Connect

Connect the sensor to the ECM using the mini connector.

3. Sense

Apply power and sense the fluid level.

Dimensions

Sensor Assembly

1.25˝ (32 mm)

Dia.

Sensor

Assembly

Mini Connector

Connector

Seal

Connector

Outside

Sensor

Fully Over-Molded ECM

0.860˝ (22 mm)

0.760˝

(19 mm)

1.80˝ (46 mm)

Connector Inserted Into Sensor

1.40˝ (35.43 mm) REF.

ECM

0.282˝ (7.16 mm) REF

0.575˝

(14.6 mm)

1.72˝ (43.7 mm) REF.

0.59˝

(15 mm)

REF.

6.25 ±0.25˝ (158.8 ±6.4 mm)

Cable Length Between

Sensor and Electronics

Optional Voltage Regulator 8-30V Input / 5V Output

1.5˝ (38.1 mm)

Connection Type

Header

2˝ (50.8 mm)

REF.

Solder

Cable Length Extended

24˝ (0.6 m) Extended Standard

78˝ (2 m) Extended Optional

Part Number

219445

218699

Features

• Non-Intrusive, stays outside the container

• Simple installation

• No calibration needed

• No long-term drift

• ±1.6 mm Accuracy

• Very small footprint

• Robust design for rough handling

• Mini, moisture-resistant connector for

ease of use

• Fully scaled, over molded ECM

Benefits

• Never contacts hazardous fluids

• Eliminates fluid contamination

• Repeatable liquid level sensing

• Easy to use

• Eliminates fluid compatibility issues

• Improves instrument uptime

• Maximizes tank volume

• Improves systems reliability

• No special mounting required

• Eliminates testing for media compatibility

2˝ (50.8 mm) REF.

How To Order

Use the matrix below to select a Part Number based on Container Material, Container

Thickness and Sensor Condition @ Current Sink.

Container

Material

HDPE

LDPE

Polypropylene

Polycarbonate

Polystyrene

Polysulfone

PVC

Polyester

ABS

Part Numbers

Container Thickness

.04" to .062" (1.02 to 1.57 mm) .058" to .082" (1.47 to 2.08 mm) .08" to .102" (2.03 to 2.59 mm)

N.O Wet Sink N.C Dry Sink N.O Wet Sink N.C Dry Sink N.O Wet Sink N.C Dry Sink

219005

219002

219001

219006

219005

219007

219003

219001

219013

219010

219009

219014

219013

219015

219011

219009

219005

219002

219004

219005

NR

219003

219002

219001

219013

219010

219012

219013

NR

219011

219010

219009

Note: All p/n above includes ExOsense sensor plus standard 5 VDC electronic control module, no delay 24" cable.

Consult factory for combinations not listed above.

219005

219008

219004

219005

NR

219003

219001

219013

219016

219012

219013

NR

219011

219009

Visit www.GemsSensors.com for most current information.

.01" to .125" (2.54 to 3.18 mm)

N.O Wet Sink N.C Dry Sink

219005

219008

219013

219016

219004

219004

219005

NR

219012

219012

219013

NR

219003

219006

219001

219011

219014

219009

A-35

A-36

WIF-1250 Water in Fuel Sensor

Designed for OHV and Generator Set applications

Compact size, easy to install

Operates in plastic or metal tanks

Reliable and affordable OEM solution

Solid-State – no moving parts

The WIF-1250 sensor is an innovative, no-moving-parts solution specifically designed to detect the presence of water in fuel. The sensor is an ideal solution for OEM’s of offhighway vehicles, locomotive and generator sets. It is also ideal for use with fuel filters, and in compressor crank cases to determine if water is present in lubricating oil. Based on reliable conductivity technology, WIF-1250 sensors are built from robust nickel plated steel for compatibility with temperatures up to 257°F (125°C), and are suited for the most challenging environments or applications. A 5-second delay circuit prevents "slosh" actuation. The sensor is easily mounted in any position.

Specifications

Housing Materials

Sensing Element Length

Operating Pressure

Operating Temperature

Sensitivity

Slosh Dampening

Supply Voltage

Output

Output Load Capability

Electrical Connection

Approvals

Dimensions

1/4˝ NPT Mounting

0.75˝ HEX

(19.05 mm)

1/4˝-18 NPTF REF.

3/4 HEX. REF.

Nickel plated steel, electrolytic nickel plated & fused glass conductivity pin insulator

0.2˝ (5.1 mm)

750 PSI (51.7 bar) @ 70°F (21°C)

-40°F to 257°F (-40°C to 125°C)

10,000 Ohms (fluid resistance)

5 seconds

8 to 32 V DC

Open collector, sinking output

250 mA max.

20 AWG 3-Conductor Cable, 15˝ (381 mm)

CE

HEYCO METAL

LIQUID TIGHT

CORDGRIP

Typical Applications

To detect water in:

• Fuel filters

• Compressor crank cases

• Lubricating Oil

• Diesel fuel storage tanks

Wiring Diagrams

RED

WHITE

BLACK

8V - 32V

250 mA

MAX.

LED

OUTPUT

R

RED

WHITE

BLACK

LOAD

250 mA

MAX.

8V - 32V

Resistance vs. Operating Temperature

30

25

20

15

10

5

0

-40

TYPICAL CONDUCTIVITY

TRIP POINTS

-10 20 50 80

OPERATING TEMPERATURE, °C

110 125

0.2˝ TYP.

(5.1 mm)

0.8˝

(20.3 mm)

M12x1.5 Mounting

0.4˝

(10.2 mm)

M12 X 1.5 THREAD

Ø0.745˝

(19 mm)

2.5˝ REF

(63.5 mm)

15˝

(381 mm)

0.731˝

(20.3 mm)

Visit www.GemsSensors.com for most current information.

Operating Principle

WIF-1250 liquid level sensors are solid-state devices designed to detect the presence or absence of water in fuel. Each sensor contains integral, hightemperature-rated electronics that generate an alternating voltage to a probe tip. The presence of water completes the circuit which, in turn, changes the condition of the transistor output. Output options vary and can be used to actuate relays, indicator lights or LEDs, as well as to interface with CMOS/

TTL logic, PLCs or microprocessors.

Conventional Conductivity Probe Gems WIF-1250 Probe

ALARM

DISPLAY

PANEL

250 mA MAX. RELAY

CMOS/TTL

LOGIC

PLC

MICRO

PROCESSOR

CONDUCTANCE TYPES

When a single potential (DC Voltage) is applied to a probe submerged in conductive liquid, metal from that probe will be lost over time via electrolysis.

Gems applies extra circuitry to produce an alternating potential (alternating

+/- DC square wave). Metal lost in one state is retrieved in the alternating state, resulting in virtually zero probe material loss.

How to Order

Select Part Number based on Mounting Thread and Switch Logic.

Probe Condition at Current Sink

Part Numbers

Wet

Dry

1/4˝ NPT

238737

238773

M12x1.5

238856

238855

Visit www.GemsSensors.com for most current information.

A-37

JUNCTION BOXES

Junction Boxes

PYROMATION.EPS

GEMS offers optional CSA Listed and FM Approved, explosion-proof junction boxes for many level switch models. Compatible level switches are indicated throughout this catalog by the small icon– .

NOTE: Explosion-proof ratings are available only when J-boxes are part of factory assembled sensor unit. J-boxes below, when ordered separately, do not carry explosionproof ratings.

Explosion-Proof J-Boxes

3-1/16˝

DIA. REF.

1-3/4˝

HEX. REF.

3-1/8˝

REF.

Materials

Finish

Weight (approx.)

NEMA Rating

Part Number

3/4˝ NPT

3-3/8˝

REF.

1/2˝ NPT

Aluminum

Die Cast Aluminum

Stainless Steel Chain and Pin

Iron

Cast Iron

EPDM Rubber Gasket

(300°F/149°C Max. Service Temp.)

Polished

.62 lbs.

Electroless Nickel Plate

.62 lbs.

4, 13

192147

4

198848

Non-Explosion Proof J-Boxes

Alloy Plastic

A-38

3-3/4˝

DIAMETER

1/2˝ TRADE SIZE (2 PORTS)

Type

3-pin

Part Number 113873

7-pin

113877

– Stock Items.

J-BOX-ASSEM.EPS

DIAMETER

1/2˝ TRADE SIZE (2 PORTS)

DPDT Relay

75980

4.27˝

DIAMETER

1/2˝ NPT 2 PORTS

3-pin

113850

7-pin

118828

Conduit/Cable Gland Connections

PG-9 OUTLET PORT

2.38

60.45

Specifications

Part Number

inches millimeters

1/2˝ NPT REF.

Standard

Empty enclosure for lead wire splice connections.

181410

1.95

49.53

5-Amp Relay

120 VAC 50/60 HZ

Contacts: 5A – 240 VAC Res

1/3 HP – 120 VAC

5A – 28 VDC Res.

180417

Visit www.GemsSensors.com for most current information.

Junction boxes are CSA and FM approved for explosion proofing in Class I, Division 1, Groups B, C, D, E, F, G

CAPACITANCE TYPE

CAP-100 Series – Non-Contact, Capacitive

Level Sensor

For non-metallic containers

Easy external mounting

Compact – 30x45 mm (1.18˝ x 1.77˝)

Potentiometer for sensitivity adjustment

Power on and signal LED indicators

The CAP-100 series offers a unique level sensing solution for a wide variety of bottle types including plastic, glass and fiberglass. The non-contact sensor is ideally suited for medical applications such as waste, reagent or diluent liquids as well as dark, sticky or viscous fluids. The easy-to-calibrate sensor is available in both aqueous and non-aqueous versions and can be delivered with factory preset sensitivity for quick installation for OEM orders.

The CAP-100 may also be used as a proximity sensor to detect the presence of solids such as paper or pulp.

Specifications

Performance

Nominal Sensing Distance, Sn

0.39˝ (10mm)

Sensing Range

Repeat Accuracy - (% of Sn)

0-0.39˝ (0-10mm)

<10%

Hysteresis - (% of Sn)

Mechanical

<20%

Enclosure Ratings

IP67, NEMA 1,3,4,6,13

Operating Temperature Range

-13°F to +158°F (-25°C to +70°C)

LED Signal Indicator

Power On LED Indicator

Potentiometer

Sensor Type

Unshielded

Shielded

Sensor Material

Cable

Yellow

Green

Yes

L-Type, Non-Embeddable

D-Type, Embeddable

Glass Filled Nylon

78.74˝ (2 meter), 3 Wire PVC

Shock

Vibration

Electrical

Supply Voltage

30g, 11ms

55Hz, 1mm amplitude in all planes

5-48 VDC

Continuous Switching Current

300 mA

Voltage Drop

<2 VDC

Current Consumption

Switching Frequency

Transient Protection

Overload Protection

Short Circuit

Reverse Polarity Protection

Approvals

<10 mA

100 Hz

2kV, 1ms, 1 kOhm

Yes

Yes

Yes

CE (Except at Frequency 803-805 MHz), RoHS

How To Order

Select a Part Number based on Fluid Properties and Sink State.

Fluid Properties

Max. Container

Wall Thickness

Wet/Dry Sink Part Number

Water Based,

Conductive

(unshielded sensor)

Non-Water Based,

Not Conductive

(shielded sensor)

5/8˝

3/8˝

Wet

Dry

Wet

Dry

230079

230081

228830

229855

Ro HS

GE

MS COMPLIAN

Ro HS

MS COMPLIAN

Typical Applications

Fluid Monitoring:

• Waste

• Reagents

• Diluent

Dimensions

0.2364˝

(6 mm)

0.5910˝

(15 mm)

• Detergent/Wash

• Coolant

• Printing Ink

R0.1182˝

(R3 mm)

0.1182˝

(3 mm)

2.2458˝

(57 mm)

1.7730˝

(45 mm)

1.1820˝

(30 mm)

LEDs

Pot

0.7880˝

(20 mm)

Wiring Diagram

Wet Sink

5-48VDC

BRN

300mA max

LOAD

BLK BLU

Dry Sink

5-48VDC

BRN

300mA max

LOAD

BLK BLU

Visit www.GemsSensors.com for most current information.

A-39

A-40

CAP-150 Series – Capacitive Level Sensor

For non-metallic containers

Non-intrusive level sensing

Optional Sight Glass Bracket

Potentiometer for sensitivity adjustment

The CAP-150 series offers a unique level sensing solution for a wide variety of bottle types including plastic, glass and fiberglass. The non-contact sensor is ideally suited for medical applications such as waste, reagent or diluent liquids as well as dark, sticky or viscous fluids. The easy-to-calibrate sensor is available in both aqueous and non-aqueous versions and can be delivered with factory preset sensitivity for quick installation for OEM orders.

The CAP-150 may also be used as a proximity sensor to detect the presence of solids such as pulp & paper.

Specifications

Performance

Nominal Sensing Distance, Sn

0.2˝ (5mm)

Repeat Accuracy - (% of Sn)

Hysteresis - (% of Sn)

<2%

<20%

Mechanical

Enclosure Ratings

IP67, NEMA 1,3,4,6,13

Operating Temperature Range

-13°F to +158°F (-25°C to +70°C)

LED Signal Indicator

Yellow

Power On LED Indicator

Potentiometer

Termination

Shock

Electrical

Supply Voltage

Green

Yes

78.74˝ (2 meter), 3 Wire PVC

30g, 11ms

5-48 VDC

Continuous Switching Current

300 mA

Voltage Drop

<2 VDC

Current Consumption

Switching Frequency

Overload Protection

Short Circuit

<10 mA

100 Hz, maximum

No

Yes

Reverse Polarity Protection

Yes

Approvals CE

How To Order

Select a Part Number based on Fluid Properties and Sink State.

Fluid Properties

Sensor

Material

Flush

Mountable

Sensing

Range

Sink

Aqueous,

Conductive

(Unshielded

Sensor)

Valox

®

No 2-8mm No

Source

Non-Aqueous,

Non-Conductive

(Shielded Sensor)

Ni-Plated

Brass Barrel

Valox

®

Sensor

Face

Yes 1-5mm Yes

Sink

Source

Part

Number

Wet

239890

Dry

239891

Wet

241366

Dry

241367

Wet

240607

Dry

240612

Wet

241368

Dry

241369

All-Valox

Body

®

Ni-Plated

Brass Body Ro HS

GE

MS COMPLIAN

Ro HS

MS COMPLIAN

Typical Applications

Fluid Monitoring:

• Waste

• Reagents

• Diluent

• Detergent/Wash

• Coolant

• Printing Ink

Dimensions

NUTS (2 PLCS)

M18x1

POTENTIOMETER

SIGNAL LED

(YELLOW)

POWER LED

0.12˝

(3 mm)

(GREEN)

TERMINATION

2.047˝

(52 mm)

Wiring Diagram

Wet Sink

5-48VDC

BRN

300mA max

LOAD

BLK BLU

Dry Sink

5-48VDC

BRN

300mA max

LOAD

BLK BLU

Convert Simple Sight Glass into Switch

Actuation Device

• For glass tubing 1/4˝ to 1˝ Dia.

Use this easy-to-install clamp with the CAP-150 to provide liquid level sensing and switch actuation along the length of sight glasses 1/4˝ to 1˝ in diameter.

Part Number: 240836

SIGHT GLASS

INSTALLATION AREA

CLAMP

CAP-150 PORT

Visit www.GemsSensors.com for most current information.

CAPACITANCE TYPE

CAP-200 Series –

Compact, 1/2˝NPT Mount

For metallic and non-metallic containers

Food grade plastic housing

No sensor well required

Potentiometer for sensitivity adjustment

The CAP-200 Series is easily threaded directly into 1/2˝ NPT fittings for an easy level sensing solution within a wide variety of metal and non-metal tanks. The highly accurate sensor is built from durable Delrin

®

material, and is available in both aqueous and nonaqueous versions. The easy to calibrate sensor can be delivered with factory preset sensitivity for quick installation by OEM. The CAP-200 may also be used as a proximity sensor to detect the presence of solids such as paper or pulp.

Specifications

Performance

Nominal Sensing Distance, Sn

0.39˝ (10mm)

Sensing Range

Repeat Accuracy - (% of Sn)

0-0.39˝ (0-10mm)

<10%

Hysteresis - (% of Sn)

Mechanical

<20%

Enclosure Ratings

IP67, NEMA 1,3,4,6,13

Operating Temperature Range

-13°F to +158°F (-25°C to +70°C)

LED Signal Indicator

Power On LED Indicator

Potentiometer

Sensor Type

Unshielded

Shielded

Barrel Material

Termination

Yellow

Green

Yes

L-Type, Non-Embeddable

D-Type, Embeddable

Delrin

®

78.74˝ (2 meter), 3 Wire PVC

Shock

Vibration

Max. Pressure

Electrical

30g, 11ms

55Hz, 1mm amplitude in all planes

150 psi (10.3 bar)

Supply Voltage

5-48 VDC

Continuous Switching Current

300 mA

Voltage Drop

Current Consumption

Switching Frequency

Transient Protection

Overload Protection

Short Circuit

Reverse Polarity Protection

Approvals

<2 VDC

<10 mA

100 Hz

2kV, 1ms, 1 kOhm

Yes

Yes

Yes

CE (Except at Frequency 803-805 MHz), RoHS

How To Order

Select a Part Number based on Fluid Properties and Sink State.

Fluid Properties

Water Based,

Conductive

(unshielded sensor)

Non-Water Based,

Not Conductive

(shielded sensor)

Container Material

Non-Metallic

Non-Metallic or Metallic

Wet/Dry Sink

Wet

Dry

Wet

Dry

Part Number

230077

230078

230082

230083

Ro HS

GE

MS COMPLIAN

Ro HS

MS COMPLIAN

Typical Applications

Fluid Monitoring:

• Waste

• Reagents

• Diluent

Dimensions

• Detergent/Wash

• Coolant

• Printing Ink

0.906˝

(23.0 mm)

0.768˝

(19.5 mm)

1.14˝

(29 mm)

1.043˝

(26.5 mm)

0.374˝

(9.5 mm)

2.047˝

(52.0 mm)

1/2˝ NPT

Wiring Diagram

Wet Sink

5-48VDC

BRN

300mA max

LOAD

BLK BLU

Dry Sink

5-48VDC

BRN

300mA max

LOAD

BLK BLU

Visit www.GemsSensors.com for most current information.

A-41

A-42

CAP-300 Series –

Reliable Coolant Level Sensor

Durable sealed design – IP67, IP6K9K

Developed for the most rugged coolant applications

Tolerates coolant coating

Small size – 2˝ (51 mm) long

The CAP-300 capacitive level sensor is one of our most durable and reliable point level sensors. Compatible with coolants, the CAP-300 is the ideal OEM solution for power generation equipment, off-highway vehicles and cell phone tower generators and can be mounted in any position. With nearly zero maintenance, the sensor is small in size, tolerates coating and will remain reliable even in the standby mode. Compatible with temperatures up to 257°F (125°C) the capacitive based sensor is suited for the most challenging environments. Available with a variety of mounting types and electrical connections, the

CAP-300 is the ideal solution for coolant monitoring.

Specifications

Mountings

Materials

Housing

O-Ring

Probe Tip

Operating Pressure

Operating Temperature

Common

1/4˝ NPT, 1/2˝-20 per SAE J1926-3,

M12x1.0-8g, M12x1.5 ISO 6149-3, 1/2˝ NPT

Brass

EPDM

Versaplast™

Up to 100 PSIG

-40°F to +257°F (-40°C to +125°C)

Cable Versions

Supply Voltage

Current Consumption

Output

Electrical Termination

-4°F to +158°F (-20°C to +70°C)

9 to 32 VDC

15mA max. (no load)

Open collector, sinking or sourcing output, 9-32 VDC, 30mA max.

3-pin Deutsch, 18 AWG Type SXL flying leads or

18 AWG PVC Cable

Sensing Element Length

1.03˝ (26.2mm) Max. (including thread length)

Approvals

CE, IP67, RoHS

Wiring Diagram

POWER SOURCE

Sinking

9-32 VDC

+ -

POWER SOURCE

9-32 VDC

+ RED +Vs

- BLK - COM

LOAD

WHT - OUTPUT

*

+ RED +Vs

- BLK - COM

LOAD

WHT - OUTPUT

*

30mA MAX

Sourcing

C

A

B

A

B

C

LIQUID LEVEL

SENSOR

LIQUID LEVEL

SENSOR

POWER SOURCE

9-32 VDC

+ -

POWER SOURCE

9-32 VDC

+ -

LOAD

*

LOAD

+ RED +Vs

- BLK - COM

WHT - OUTPUT

+ RED +Vs

- BLK - COM

WHT - OUTPUT

30mA MAX

*

C

A

B

A

B

LIQUID LEVEL

SENSOR

LIQUID LEVEL

SENSOR

Dimensions

Deutsch

®

Connector

1.9˝ MAX

(48.3 mm)

A

1.03˝ REF

(26.2 mm)

Lead Wires or Cable

1.7˝ MAX

(43.18 mm)

A

1.03˝ REF

(26.2 mm)

Ro HS

GE

MS COMPLIAN

®

T

Ro HS

MS COMPLIAN

VERSAPLAST™ ENCAPSULATION

CAPACITANCE MEASUREMENT

LEAD WIRES

12±1˝

(305±25.4 mm)

CABLE

36±1˝

(914.4±25.4 mm)

15/16˝ HEX

(24 mm)

15/16˝ HEX

(24 mm)

Thread

Sizes

1/2˝-20

1/2˝-14NPT

A DIM. REF.

0.43˝ (10.9 mm)

0.62˝ (15.7 mm)

EPDM O-Ring

3-905

M12x1-8g

M12x1.5

0.54˝ (13.5 mm) 2-110

0.53˝ (15.2 mm)

9.3 x 2.2 mm

1/4˝-18NPT 0.62˝ (15.7 mm) None

None

Visit www.GemsSensors.com for most current information.

How To Order

Select a Part Number based on mounting type, connection and actuation condition.

Actuation

Condition

Electrical

Connection

1/4˝-18 NPT

(male)

1/2˝-20 per

SAE J1926-3

Thread Sizes

M12x1.5 Stud

End Per

ISO6149-3

Wet Sink

Integral 3-pin Deutsch

®

DT04-3P Connector

12˝ 18 AWG SXL

Flying Leads

240640

240660

240700

240720

240800

240820

240680 240740 240840

Dry Sink

Wet Source

Dry Source

36˝ PVC Cable

Integral 3-pin Deutsch ®

DT04-3P Connector

12˝ 18 AWG SXL

Flying Leads

36˝ PVC Cable

Integral 3-pin Deutsch

®

DT04-3P Connector

12˝ 18 AWG SXL

Flying Leads

36˝ PVC Cable

Integral 3-pin Deutsch

®

DT04-3P Connector

12˝ 18 AWG SXL

Flying Leads

36˝ PVC Cable

240650

240670

240690

240645

240665

240685

240655

240675

240695

240710

240730

240750

240705

240725

240745

240715

240735

240755

240810

240830

240850

240805

240825

240845

240815

240835

240855

M12x1.0-8g

240900

240920

240940

240910

240930

240950

240905

240925

240945

240915

240935

240955

1/2˝-14 NPT

242970

242975

242980

242985

242990

242995

242971

242976

242981

242986

242991

242996

CAPACITANCE TYPE

Visit www.GemsSensors.com for most current information.

A-43

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