EGE Elektronik Sensor with Integrated Amplifier Productseries SN 450/1 GR-VA

Description

The EGE Elektronik Sensors with Integrated Amplifier Productseries SN 450/1-GR-VA is the definitive choice for engineers seeking a robust, relay-based flow monitor in a compact 24V DC format. The “GR” designation indicates a built-in relay that provides a changeover (SPDT) contact, offering the flexibility to switch either AC or DC loads directly from the sensor. This eliminates the need for interposing relays or specialized PLC input cards, simplifying the overall system architecture.

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 450/1 GR-VA
Product ID	P11233
Medium	water, oil
Detection range water	1 … 150 cm/s
Detection range Oil	3 … 300 cm/s
Process connection	G1/2
Sensor length L	48 mm
Output	switching output
Output function	relay
Turn off delay	0…25 s
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
Switching power max.	500 VA / 60 W
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 65
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

Integrated Evaluation Amplifier: Built-in electronics process all signals internally, allowing for direct connection and saving cabinet space.
Potential-Free Relay Output: Features a changeover (SPDT) contact for versatile switching of diverse industrial loads.
Thermodynamic Measurement: Solid-state design with no moving parts prevents mechanical failure and ensures maintenance-free operation.

Applications

Pump Dry-Run Prevention: Providing an immediate shutdown signal to protect high-value pumps when flow is lost.
Industrial Lubrication: Verifying that oil is reaching critical bearings in heavy rotating machinery.
Wastewater Treatment: Reliable detection in lines containing debris that would jam mechanical turbine meters.