EGE Elektronik Sensor for Explosive Productseries ST 106 KH

Description

EGE Elektronik Sensor for Explosive Productseries ST 106 KH is the authoritative choice for safety-critical applications where explosive risks and high temperatures intersect. Specifically designed for Zone 0 and Zone 1 (Gas) and Zone 20 and 21 (Dust), this sensor ensures that process monitoring does not introduce an ignition source into the atmosphere. Operating on the thermodynamic principle, the ST 106 KH uses a solid-state probe to detect flow velocity. Because there are no moving parts, the risk of mechanical friction, sparks, or static discharge—common failure points in traditional paddle-flow switches—is eliminated. The “KH” designation indicates the presence of a thermal decoupling neck, which protects the sensitive transducer elements from continuous exposure to media reaching 120°C.

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	ST 106 KH
Product ID	P11184
Medium	water, oil
Detection range water	1 … 100 cm/s
Detection range Oil	3 … 200 cm/s
Process connection	G3/4
Sensor length L	48 mm
Output	output with separate amplifier
Ex area uf use	Zone 1, Zone 21
ATEX Certificate	TÜV 97 ATEX 1218
ATEX marking gas	Ex II 2G Ex eb IIC T6 Gb
ATEX Marking dust	Ex II 2 D Ex ib IIIC T125°C Db
Temperature range in T6	-20 … 40 °C
Temperature range in T5	-20 … 55 °C
Temperature range in T4	-20 … 90 °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.	8 s (2 … 18 s)
Reaction time typ.	2 s (1 … 13 s)
Compressive strength	60 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 G3/4 AFM 34
Associated amplifiers	SZAb 400 EX-GR, SZAb 400 EX-WR115, SZAb 400 EX-WR230, SZAb 400 EX-GA

Features

High-Temperature Endurance (KH): Capable of monitoring flow in media up to 120°C.
Intrinsically Safe Design: Operates at low energy levels to prevent ignition in explosive atmospheres.
Thermodynamic Reliability: No moving parts means zero mechanical wear and no friction-induced heat.

Applications

Chemical Distillation: Monitoring hot, flammable solvent flow in reactor return lines.
Petrochemical Processing: Flow verification in hazardous zones where process media is heated.
Pharmaceutical Extraction: Ensuring constant flow in systems using hot alcohols or volatile reagents.