EGE Elektronik Sensor Air Flow Sensors Productseries STS 215 KH

Description

The EGE Elektronik STS 215 KH is the authoritative choice for industrial applications where standard air flow sensors would fail due to thermal stress. The “KH” designation identifies this unit as a high-temperature variant, capable of continuous operation in media temperatures ranging from -20°C to +120°C. The STS 215 KH is built with an extended probe length, specifically engineered to reach deeper into large-diameter hot air ducts or insulated pipes. This ensures the calorimetric sensing tip is positioned accurately within the core of the airflow, away from the boundary layers of the pipe wall, providing more reliable and repeatable data.

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 215 KH
Product ID	P11212
Medium	air
Detection range air	2 … 25 m/s
Process connection	G1/2
Sensor length L	48 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 T6…T3 Ga/Gb
ATEX marking gas	Ex II 1 G Ex ia IIC T6…T3 Ga
ATEX Marking dust	Ex II 1 D Ex ia IIIC T130°C Da
Temperature range in T6	-20 … 35 °C
Temperature range in T5	-20 … 50 °C
Temperature range in T4	-20 … 85 °C
Temperature range in T3	-20 … 120 °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.	5 … 20 s
Reaction time typ.	3 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
Protection [EN 60529]	IP 67
Electrical connection	2 m FEP-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

Extended Immersion Depth: Optimized for larger ducts and insulated piping to ensure accurate core-flow detection.
Threaded G1/2 Connection: Provides a secure, pressure-resistant (up to 20 bar) and leak-proof mechanical seal.
Heat-Resistant Fixed Cable (-KH): Specialized cable insulation designed to withstand high ambient and process temperatures.

Applications

Industrial Drying Ovens: Monitoring airflow in curing and drying processes for textiles, paper, or coatings.
Hot Exhaust Monitoring: Verifying the extraction of high-temperature fumes from combustion or chemical processes.
Heat Recovery Systems: Measuring airflow in heat exchangers to optimize energy efficiency.