EGE Elektronik Sensor Air Flow Sensors Productseries LN 520 GSP

Description

The EGE Elektronik LN 520 GSP is the authoritative choice for industrial engineers who require robust airflow supervision without the bulk of traditional sensors. The “GSP” designation identifies this unit as a 24V DC sensor with a PNP transistor output, making it directly compatible with modern industrial PLC inputs. Unlike modular plug-in versions, the LN 520 GSP features a 2-meter factory-integrated fixed cable. This design provides a superior hermetic seal and ensures electrical continuity in high-vibration environments where a plug might potentially work loose over time. The compact housing is specifically designed for “duct-ready” installation, allowing for a small immersion footprint that does not significantly obstruct the airflow it is measuring.

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 GSP
Product ID	P11096
Medium	air, non-explosive gas
Detection range air	0.5 … 15 m/s
Process connection	Ø 20 mm
Output	switching output
Output function	PNP-NO
Supply voltage	24 V DC +/- 20 %
Current consumption max.	100 mA
Switching current max.	200 mA
Reverse polarity protection	✓
Voltage drop max.	2.5 V
Ambient temperature	-20 … 70 °C
Medium temperature	-20 … 70 °C
Temperature gradient gaseous media	200 K/min
Start-up time	20 … 40 s
Reaction time typ.	2 s
Material sensor touched by medium	AL2O3, PBT, PUR
Material housing	PBT
Protection [EN 60529]	IP 67
Electrical connection	2 m PVC-cable 3×0.5 mm²
Accessories (in scope of delivery)	plastic flange ø20 (Z01106), screwdriver

Features

Integrated Fixed Cable: 2-meter factory-sealed PUR/PVC cable for a tamper-proof, high-integrity connection.
Compact 520 Series Body: Optimized for tight mounting locations like control racks and small machine ducts.
Thermodynamic Reliability: Solid-state sensing eliminates mechanical friction and extends service life.

Applications

Cabinet Thermal Safety: Monitoring internal cooling fans to protect high-density server or control racks.
Small Exhaust Ducts: Verifying airflow in localized fume extraction for soldering or chemical labs.
Heater Protection: Interlocking air-heaters to ensure they only operate when sufficient airflow is present.
Cleanroom Supply: Monitoring the stability of laminar flow in small pharmaceutical workstations.