The EGE Elektronik Sensors with Integrated Amplifier Productseries ST 421 KH-A4 is the authoritative choice for decentralized flow monitoring in demanding industrial environments.
The EGE Elektronik Sensors with Integrated Amplifier Productseries ST 421 KH-A4 is the authoritative choice for decentralized flow monitoring in demanding industrial environments. The “KH” designation indicates a compact head design, while the “A4” confirms that all wetted parts are constructed from high-grade 1.4571 stainless steel, providing superior resistance to corrosion and chemical attack.
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.
| TYPE | ST 421 KH-A4 |
|---|---|
| Product ID | P10437 |
| Detection range water | 1 … 150 cm/s |
| Detection range Oil | 3 … 300 cm/s |
| Process connection | G1/2 |
| Sensor length L | 48 mm |
| Ambient temperature | 10 … 120 °C |
| Medium temperature | 10 … 120 °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 | stainless steel AISI 316 Ti, brass |
| Protection [EN 60529] | IP 68 |
| Electrical connection | 2 m FEP-cable 4×0.25 mm² |
| Accessories (in scope of delivery) | 2 x gasket G1/2 AFM 34 |
| Associated amplifiers | SKM 420 GR, SKM 420 GSP, SKM 420 GA, SKM 522 GR, SKM 522 WR, SKZ 400 GR, SKZ 400 WR-115, SKZ 400 WR |
Integrated Evaluation Amplifier: Eliminates the need for separate DIN-rail amplifiers, reducing cabinet costs and wiring.
Compact “KH” Design: Optimized for installations where space is limited but high performance is required.
Thermodynamic Measurement: No moving parts ensures a maintenance-free lifecycle and resistance to debris.
Welding Robot Safety: Monitoring water cooling loops for welding tips to prevent overheating and downtime.
Lubrication Systems: Verifying the delivery of oil to critical bearings in heavy industrial gearboxes
