EGE Elektronik Sensor Air Flow Sensors Productseries LN 520 GPLS

Description

The EGE Elektronik LN 520 GPLS is the authoritative choice for machine builders and automation engineers who require a modern, modular airflow detection solution within a limited footprint. The “GPLS” designation indicates a standard 24V DC operating voltage with a PNP transistor output, ensuring seamless compatibility with industrial PLCs. The M12 plug-in interface provides the flexibility of rapid installation and easy sensor replacement without the need to disturb the fixed wiring of the machine. Operating on the calorimetric (thermal) principle, the LN 520 GPLS detects flow by measuring the heat dissipation from its solid-state probe. This technology is superior to mechanical switches because it has no moving parts, meaning it cannot jam, wear out, or be damaged by vibration. This design is particularly effective in environments where dust or oil mist might otherwise compromise the functionality of a vane-style anemometer.

Brand

EGE-Elektronik

EGE-Elektronik Spezial-Sensoren GmbH has been developing and manufacturing special purpose sensors for automation applications since 1976. The company serves leading international producers from a wide range of industries. Its product portfolio includes flow controllers, infrared, opto and ultrasonic sensors, capacitive proximity switches, light barriers and inductive proximity switches. EGE also provides sensors for highly sensitive applications, e. g. hazardous areas. The development department`s highly qualified staff cooperates closely with all customers, ensuring continuous product updates and enhancement.

EGE has been a pioneer in the field of flow controller and an innovator and decisive participant in the development of today's globally utilized thermal flow controllers. The in-house EMC and test laboratories ensure that all inspections and tests required for permits and conformity certificates are carried out quickly and reliably. Product quality is guaranteed with a continuously monitored quality management system in accordance with EN ISO 9001:2000.

Specifications

TYPE	LN 520 GPLS
Product ID	P11437
Medium	air
Detection range air	0.5 … 15 m/s
Detection range °C	-20 … 70 °C
Process connection	Ø 20 mm
Output	IO-Link
Output function	PNP-NO / NC
Process Data Airflow	0…1000 [% x 0.1]
Process data temperature	-200…700 [°C x 0,1]
Supply voltage	18 … 30 V DC
Current consumption max.	40 mA
Switching current max.	150 mA
Ambient temperature	-20 … 70 °C
Start-up time	20 … 40 s
Reaction time (flow change)	2…20
Reaction time (temperature change)	< 15
Material sensor touched by medium	BR-Ni, PBT
Material housing	brass-Ni, PBT
Display flow	6-colour-illuminated LED yellow, green, cyan, violet, blue
Protection [EN 60529]	IP 67
Electrical connection	2 m PVC-cable 3×0.34 mm²
Accessories	Flange Ø 20 mm (Z01106)

Features

PNP Switching Output (GPLS): Standardized 24V DC output for direct integration into control loops.
M12 Plug Connection: Modular electrical interface for simplified commissioning and maintenance.
Compact 520 Series Design: Optimized for mounting in tight spaces, such as small ducts or high-density equipment racks

Applications

Control Cabinet Ventilation: Monitoring 24V cooling fans to prevent heat damage to sensitive electronics.
Laboratory Extraction: Verifying airflow in localized fume hoods or soldering stations.
Heater Safety Interlocks: Ensuring airflow is present before industrial heating elements are energized.
Modular Machinery: Flow verification in compact automated production lines using standardized M12 cabling.