Name: Gems Sensors 187590
Brand: Gems Sensors
SKU: 187590
Availability: InStock

Stem Material: Polysulfone
Float Material: N/A
Mounting Size: 3/4″ Flange
Switch Type : TTL/CMOS Compatible

Gems ELS-1100TFE Electro-Optic Level Sensor Technical Specifications
● GENERAL
Description	ELS-1100TFE Teflon® sensors for ultra-pure or aggressive fluids. Pure Teflon® body and prism construction, with a Hypalon® vapor barrier and Teflon®-coated lead wires. Suited for pharmaceuticals, semiconductor manufacturing, food and beverage, chemical processing, or any application where purity or chemical resistance is the major criteria.

● SPECIFICATIONS
Materials — Housing and Prism	Teflon®.
Operating Pressure	0 to 150 PSI, maximum.
Operating Temperature*	0°F to 176°F (-17.8°C to +80°C).
Input Voltage	10 – 28 VDC.
Current Consumption	18 mA, approximately.
Output†	TTL/CMOS compatible. Open collector output may sink 40 mA up to 30 VDC.
Repeatability	±1 mm.
EMI Susceptibility	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
Overall Length	2-1/2″ ref.; .50″ ref.
Connections	1/4″ NPT ref.; 5/8″ hex ref.; 3/8″ NPT conduit connection; cable with TFE jacket; optional Hypalon® boot / cable seal.

● ORDERING INFORMATION
Probe Condition at Current Sink	Part Number
	With Cable Boot	No Cable Boot
Wet	187595	173800 ⚡
Dry	185600	173700
⚡ = Stock item. Specify part number based on output condition and boot option.

Gems ELS-1100FLG Electro-Optic Level Sensor (Flange Mounting) Technical Specifications
● GENERAL
Description	Flange-mounted sensor for installations without threaded holes — the easy solution for thin wall tanks (≤ 1/4″ thick). No threads needed; slips through a .75″ hole and tightens with a 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	Polysulfone.
Operating Pressure	0 to 150 PSI, maximum.
Operating Temperature*	0°F to 176°F (-17.8°C to +80°C).
Input Voltage	10 – 28 VDC.
Current Consumption	18 mA, approximately.
Output†	TTL/CMOS compatible. Open collector output may sink 40 mA up to 30 VDC.
Repeatability	±1 mm.
EMI Susceptibility	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.

● ORDERING INFORMATION
Input Power	Wet (Probe Condition at Current Sink)	Dry (Probe Condition at Current Sink)
5 VDC	187575	187590
10-28 VDC	187585	187580
Specify part number based on input power and output condition required.

● RELATED ACCESSORY
Extended Power / Switching (Optopak)	Extended power and switching capabilities of 12 VDC models with Gems. Converts TTL output signal to a 5 Amp relay output. Available as an open circuit board or mounted in a NEMA 4X enclosure. See Page A-33.

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Gems Sensors 187590

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