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EGE Elektronik Sensor Amplifiers Productseries SKM 421 GR

EGE Elektronik Sensor Amplifiers Productseries SKM 421 GR

The EGE Elektronik SKM 421 GR provides a higher level of process security by evaluating two critical variables from a single sensing point.

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Description

The EGE Elektronik SKM 421 GR provides a higher level of process security by evaluating two critical variables from a single sensing point. While standard amplifiers only report whether a medium is moving, the SKM 421 GR utilizes EGE’s dual-function probes to report both flow velocity and whether the media has exceeded a specific temperature threshold. This dual-logic approach is essential for cooling circuits where “flow” alone does not guarantee that heat is being effectively dissipated.

Brand

EGE-Elektronik

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

TYPESKM 421 GR
Product IDP11067
Output functionrelay
Supply voltage24 V DC +/- 20 %
Switching voltage max.230 V AC / 30 V DC
Switching current max.1 A AC / 1 A DC
Switching power max.125 VA
Reverse polarity protection✓
Ambient temperature-20 … 60 °C
Protection [EN 60529] terminalIP 20
Protection [EN 60529] housingIP 40
Electrical connectionterminal screws
Accessories (in scope of delivery)screwdriver
Amplifier for probeLTZ…

Features

  • Independent Calibration: Separate front-facing potentiometers for Flow and Temperature setpoints.

  • Integrated Switch-off Delay: Adjustable 0…25 second delay to prevent relay chatter during turbulent flow.

  • Diagnostic LED Array: Multi-color LEDs provide instant feedback on Power (green), Flow status (yellow), and Temperature alarm (red/yellow).

  • Sensor Line Monitoring: Automatically detects and signals cable breaks or short circuits to the probe.

Applications

  • Industrial Cooling Hubs: Monitoring flow and heat levels in heavy-duty welding or induction heating systems.

  • Hydraulic Power Units: Ensuring oil is circulating and remaining within safe operating temperatures.

  • Spindle Cooling: Protecting high-speed CNC spindles by verifying coolant delivery and temperature.

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