EGE Elektronik Sensor Air Flow Sensors Productseries STS 212 K

Description

The EGE Elektronik STS 212 K is the authoritative choice for industrial applications that require a tamper-proof and hermetically sealed sensing solution. The “K” designation identifies this model as having a factory-integrated fixed cable (typically 2 meters). This design is highly preferred in environments with high humidity, oil mist, or heavy vibrations, as it eliminates the potential for connector corrosion or accidental unplugging. The G1/2 threaded connection allows for a secure mechanical fit into T-pieces or welded sleeves. Unlike flange-mounted sensors, the STS 212 K can handle internal pipe pressures up to 20 bar, making it suitable for secondary compressed air lines and process gas delivery systems

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	STS 212 K
Product ID	P11152
Medium	air
Detection range air	2 … 25 m/s
Process connection	G1/2
Sensor length L	65 mm
Output	output with separate amplifier
Ex area uf use	installation in partition wall Zone 0/1, Zone 0, Zone 20
ATEX Certificate	TÜV 98 ATEX 1298 X
Marking gas Ex for partition wall mounting	Ex II 1/2 G Ex ia IIC T4…T3 Ga/Gb
ATEX marking gas	Ex II 1 G Ex ia IIC T4…T3 Ga
ATEX Marking dust	Ex II 1 D Ex ia IIIC T145°C Da
Temperature range in T4	-20 … 70 °C
Temperature range in T3	-20 … 85 °C
Temperature range dust-Ex	-20 … 85 °C
Maximum values	Ui = 13.65 V / li = 200 mA / Pi = 0.69 W / Ci = 0.45 nF / Li = 1.80 µH
Start-up time typ.	10 … 40 s
Reaction time typ.	5 s (2 … 30 s)
Compressive strength	10 bar
Material sensor touched by medium	stainless steel AISI 316 Ti
Material housing	stainless steel AISI 316 Ti, brass
Protection [EN 60529]	IP 67
Electrical connection	2 m PUR-cable, 4×0.25 mm²
Accessories (in scope of delivery)	2 x gasket G1/2 AFM 34
Associated amplifiers	SZAb 400 EX-GR, SZAb 400 EX-WR115, SZAb 400 EX-WR230, SZAb 400 EX-GA

Features

Screw-in G1/2 Thread: Provides a secure, pressure-resistant mechanical connection (up to 20 bar) for pipes and ducts.
Calorimetric Sensing: Solid-state, thermodynamic technology with zero mechanical wear or friction.
High-Grade Stainless Steel Probe: Durable construction resistant to moisture and non-aggressive industrial gases.

Applications

Compressed Air Monitoring: Detecting flow loss or verifying air delivery in secondary pneumatic branch lines.
Inert Gas Supervision: Ensuring constant flow of Nitrogen or Argon in industrial packaging or chemical blanketing.
Machine Tool Protection: Verifying that cooling air is reaching high-speed spindles or sensitive laser optics.