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LM1 LM2 LMM1 GA – GTA XIA – Level switches intrinsic safety execution

The LM1, LM2, and LMM1 intrinsic safety level switches are engineered for hazardous environments requiring precise liquid level monitoring. Designed with ATEX certification, these switches ensure reliable performance in explosive atmospheres. With durable materials and flexible mounting options, they are ideal for industrial tanks, chemical processing, and oil systems. Optimized for safety, accuracy, and long-term use across demanding applications.

Category Level
Brand Elettrotec
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Technical details and application highlights

Review the complete description, feature set, and specification details before sending your inquiry.

The LM1, LM2, and LMM1 GA – GTA XIA level switches are advanced industrial solutions designed for accurate liquid level detection in hazardous environments. Built with intrinsic safety principles and certified under ATEX standards, these switches ensure safe operation in explosive atmospheres such as chemical plants, oil refineries, and industrial storage systems. Their robust construction and precision switching make them ideal for demanding industrial applications.

Key Features

These level switches offer multiple configurations including single and dual actuation points, allowing flexible process control. The intrinsic safety design eliminates ignition risks, making them suitable for Zone 0 environments. High-quality materials such as brass and anodized aluminium ensure durability and resistance to harsh fluids and pressures.

Design & Functionality

The float-based mechanism provides reliable liquid level detection with smooth actuation. The compact yet durable design supports both flange (GA) and threaded (GTA) mounting, ensuring compatibility across various tank systems. Electrical connections are protected with IP65-rated enclosures for enhanced environmental resistance.

Total Crossed Beams

The internal switching system is engineered to deliver precise actuation even under fluctuating liquid conditions. This ensures consistent monitoring and reduces operational risks in critical industrial processes.

Beam Pitch Options

Available in multiple configurations, including LM1, LM2, and LMM1 variants, the system supports different actuation points and switching logic. This flexibility allows customization based on tank size, fluid type, and operational requirements.

Intrinsic Synchronism

Intrinsic safety parameters ensure zero energy accumulation that could trigger ignition. With optimized input voltage, current, and power limits, the device maintains safe synchronization across all connected switches within hazardous zones.

Operational Advantages

The LM series level switches provide high reliability, low maintenance, and long service life. Their resistance to pressure, temperature variations, and fluid viscosity ensures stable performance in industrial environments. These switches are ideal for improving operational safety, reducing downtime, and enhancing process efficiency in critical applications.

Parameter

Specification

Body materialBrass
Float materialNBR
Mounting materialAnodized aluminium
Actuation pointLM1 – 1 actuation point contact NC/NO / LM2 – 1 actuation point contact SPDT / LMM1 – 2 actuation points NC/NO
MountingGA – Flange Ø 92 / GTA – Thread G2″
Electrical connectionDIN 43650 – PG09 – IP65
Input capacityCi ~= 0
Input inductanceLi ~= 0
Input currentIi 215mA
Max. input powerPi 0.75W
Input voltageVi 30V
Temperature range-30°C to +60°C
Max. pressure10 bar
Fluid specific gravity0.7 kg/dm³
Fluid viscosity150 cSt
CertificationATEX – II 1 G Ex ia IIB T6
SizeMax. length 2500 mm
Safety parametersIntrinsic
NoteValues refer to single or combined switch connections
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