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

Description

The EGE Elektronik Sensors with Integrated Amplifier Productseries SN 450-A4-GR is the authoritative choice for engineers seeking a robust flow monitor that operates on standard 24V DC power. The “GR” designation identifies the integrated relay stage, which offers a potential-free changeover (SPDT) contact. This allows the sensor to switch diverse loads or interface with any PLC logic type (PNP or NPN) seamlessly. The “A4” indicates that the wetted parts and housing are made of premium V4A (1.4571) stainless steel, ensuring compatibility with aggressive industrial media.

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-A4-GR
Product ID	P11115
Medium	water, oil
Detection range water	1 … 150 cm/s
Detection range Oil	3 … 300 cm/s
Process connection	G1/2
Sensor length L	31 mm
Output	switching output
Output function	relay / change-over
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
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

Cooling System Verification: Monitoring water flow in welding robots, induction furnaces, and power electronics.
Pump Dry-Run Protection: Detecting loss of fluid to trigger an automatic shutdown and prevent pump damage.
Lubrication Monitoring: Ensuring consistent oil flow to bearings and gearboxes in large machinery.