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

Description

The EGE Elektronik Sensors with Integrated Amplifier Productseries SN 450/3-A4-GR is the definitive choice for engineers who need a robust, relay-based flow monitor with maximum immersion depth. The “/3” designation indicates the extra-long probe variant, providing a reach of approximately 67mm. This extended length is critical for large-bore pipelines where the sensor tip must reach the center flow profile to avoid the turbulent or stagnant zones typically found near the pipe walls.

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-GR
Product ID	P11084
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
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	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 Reach (/3): ~67mm probe length, ideal for large pipes, deep-seated welding sockets, and insulated piping.
Integrated Evaluation Amplifier: Built-in electronics process all signals at the source, saving cabinet space and reducing wiring.
Potential-Free Relay Output (GR): Features a changeover (SPDT) contact for universal switching of AC or DC loads.

Applications

Large Diameter Pipeline Monitoring: Measuring flow in main water distribution and cooling lines for heavy industry.
Insulated Piping Systems: The 67mm reach allows the sensor tip to bypass thick thermal insulation while maintaining core flow immersion.
Pump Dry-Run Protection: Reliable detection in large-bore intake pipes to protect high-capacity pumps.