EGE Elektronik Sensor with Integrated Amplifier Productseries SN 450/2-A4-GR

Description

EGE Elektronik Sensors with Integrated Amplifier Productseries SN 450/2-A4-GR is the definitive choice for facilities requiring a robust, relay-based flow monitor in a compact 24V DC format with extended reach. The “/2” designation signifies the extended probe variant, providing a ~48mm reach compared to the standard 31mm. This ensures that the active sensor tip is positioned correctly within the core flow profile of large pipelines, avoiding the stagnant or turbulent boundary layers near the pipe wall.

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	SN 450/2-A4-GR
Product ID	P11081
Medium	water, oil
Detection range water	1 … 150 cm/s
Detection range Oil	3 … 300 cm/s
Process connection	G1/2
Sensor length L	80 mm
Output function	relay
Supply voltage	24 V DC +/- 20 %
Current consumption max.	80 mA
Switching voltage max.	250 V AC / 60 V DC
Switching current max.	4 A AC / 4 A DC
Reverse polarity protection	✓
Ambient temperature	-20 … 70 °C
Medium temperature	-20 … 80 °C
Temperature gradient fluids	250 K/min
Start-up time typ.	8 s (2 … 15 s)
Reaction time typ.	2 s (1 … 13 s)
Compressive strength	100 bar
Material sensor touched by medium	stainless steel AISI 316 Ti
Material housing	PBT, PVC
Display flow	LED-Array
Protection [EN 60529]	IP 67
Electrical connection	fixed cable
Accessories (in scope of delivery)	2 x gasket G1/2 AFM 34, screwdriver
Note	with longer cable available on request

Features

Integrated Evaluation Amplifier: Built-in electronics process signals at the source, eliminating the need for external transducer modules.
Potential-Free Relay Output: Features a changeover (SPDT) contact, offering universal compatibility for switching AC or DC loads.
Thermodynamic Measurement: Solid-state design with no moving parts prevents mechanical failure and resists clogging in media with particulates.

Applications

Large Diameter Cooling Pipes: Monitoring flow in main water lines for welding lines, induction furnaces, and power electronics.
Deep-Immersion Requirements: Ideal for monitoring flow through thick thermal insulation or specialized welding sleeves.
Pump Dry-Run Protection: Protecting high-capacity pumps by monitoring intake lines for loss of fluid.