Overview
The Gems Sensors LS-1755 is a single-point float level switch engineered for challenging industrial liquid detection. This rugged stainless-steel level switch is built for corrosive liquids and high-temperature, high-pressure applications with FDA-compliant construction ensuring reliability. The vertical float design activates at a fixed liquid level, making it ideal for pump control, alarm signaling, and overflow protection in tanks and sumps.
Key Features
- Single-point, single-throw switching at 50–240 VAC with normally open contact
- Rugged 1-1/32″ float diameter with 37/64″ actuation level
- All wetted parts constructed of 316 stainless steel
- Rated for 275 psi and process fluid temperatures from -40°C to +148.9°C (-40°F to +300°F)
- Pre-wired with 24″ lead wire (22 AWG bare-end flying leads)
- FDA food-contact compliant all-stainless steel construction
Technical Specifications
This level switch features 1/8″ NPT male mounting size with 50–240 VAC electrical rating. The switch provides one digital output with SPST-NO contact and 20 VA rating. Minimum temperature is -40°F; maximum is 300°F. The unit is compatible with liquids having specific gravity of 0.9 or higher. The LS-1755 series holds UL Recognized status and CSA Listed certification.
Typical Applications
- Tank level detection and monitoring in chemical processing
- Pump on/off control based on preset liquid level
- Overflow and low-level alarm circuits
- Wastewater treatment and environmental systems
- Food and beverage production (FDA-compliant)
- Oil, coolant, and corrosive fluid tanks
Compatibility & Replacements
Compatible With
- Standard PLC and automation controller inputs (digital I/O modules)
- Relay circuits and control panels
- Tank and sump monitoring systems
- Industrial HVAC and fluid handling systems
Replaces / Drop-In Replacement For
The LS-1755 series with part number 01755 is the primary commercial designation. Verify compatibility with your specific application before ordering, as float level switches may have application-specific configurations.
Works With
- Standard AC industrial control circuits (50–240 VAC)
- Normally open (N.O.) relay contacts and contactors
- Low-voltage alarm and indicator circuits
- Mechanical and pneumatic pump control systems
