EGE Elektronik Sensor with Integrated Amplifier Productseries SN 450/3-A4-WR1

Description

EGE Elektronik Sensors with Integrated Amplifier Productseries SN 450/3-A4-WR1 is the definitive choice for facilities requiring decentralized flow control in large-scale infrastructure. The “/3” designation indicates the extra-long probe variant, providing a reach of approximately 67mm into the process line. This extended reach is critical for ensuring the sensor’s active tip is positioned in the center of the flow profile in large pipes, where standard probes would only reach the slower-moving 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 450/3-A4-WR1
Product ID	P11082
Medium	water, oil
Detection range water	1 … 150 cm/s
Detection range Oil	3 … 300 cm/s
Process connection	G1/2
Sensor length L	120 mm
Output	switching output
Output function	relay / change-over
Supply voltage	115 V AC +/- 15 %
Current consumption max.	60 mA
Switching voltage max.	250 V AC / 60 V DC
Switching current max.	4 A AC / 4 A DC
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	2 m PVC-cable 5×0.5 mm²
Accessories (in scope of delivery)	2 x gasket G1/2 AFM 34, screwdriver
Note	with longer cable available on request

Features

Extra-Long Probe (/3): Features a ~67mm probe reach, ideal for large-diameter pipes, heavy insulation, or deep-seated welding sockets.
Integrated 115V AC Amplifier: Eliminates the need for external transducer modules or additional DC wiring.
Potential-Free Relay Output: Includes a changeover (SPDT) contact for flexible switching of alarms, valves, or motor starters.

Applications

Main Water Lines: Monitoring flow in large-diameter distribution and cooling lines for power plants.
Insulated Piping: Extended reach allows the sensor to pass through thick thermal insulation and standard stand-offs.
Wastewater Management: Reliable flow detection in large effluent lines where mechanical sensors would clog.