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

Description

The EGE Elektronik Sensors with Integrated Amplifier Productseries SN 450-A4-WR1 is the authoritative choice for facilities where 115V AC is the primary power source and space in the control cabinet is at a premium. The “WR1” designation identifies its internal AC power stage, while the “A4” signifies its premium V4A (1.4571) stainless steel construction. By performing all signal processing directly at the point of measurement, this sensor eliminates the need for expensive external evaluation units and complex DC wiring.

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-WR1
Product ID	P11113
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	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
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

Features

Potential-Free Relay Output: Features a changeover (SPDT) contact, providing universal compatibility for switching diverse industrial loads.
Thermodynamic Sensing: Solid-state design with no moving parts ensures high reliability and maintenance-free operation.

Applications

Pump Dry-Run Protection: Detecting the absence of liquid to trigger an automatic shutdown before pump damage occurs.
Lubrication Circuits: Verifying oil flow to critical bearings and gearboxes in large machinery.
Wastewater Treatment: Reliable flow detection in media containing particulates that would jam mechanical flow meters.
HVAC Infrastructure: Monitoring flow in large-scale building chilled water or heating loops.