EGE Elektronik Sensor for Explosive Productseries ST 111 KH-L80

Description

The EGE Elektronik Sensor for Explosive Productseries ST 111 KH-L80 is the authoritative choice for monitoring flow where the highest explosion protection and high thermal loads overlap. While standard Ex-sensors are often limited to Zone 1, the ST 111 series is certified for Zone 0 (Gas) and Zone 20 (Dust), making it suitable for installation directly inside tanks, reactors, or pipes where explosive atmospheres are permanent. The “L80” designation refers to the 80mm immersion length, which allows the sensing tip to reach past thick thermal insulation or through deep welding sleeves into the core flow profile. This is crucial for maintaining accuracy in large-diameter piping or insulated systems common in chemical plants and refineries.

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 111 KH-L80
Product ID	P11203
Medium	water, oil
Detection range water	1 … 100 cm/s
Detection range Oil	3 … 200 cm/s
Process connection	DN25/PN40 (EN 1092-1/05 A)
Sensor length L	80 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 2 G Ex ib IIC T6…T3 Gb
ATEX Marking dust	Ex II 2 D Ex ib IIIC T125°C Db
Temperature range in T6	10 … 40 °C
Temperature range in T5	10 … 55 °C
Temperature range in T4	10 … 90 °C
Temperature range in T3	10 … 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, brass
Material Flange	AISI 316 Ti
Protection [EN 60529]	IP 67
Electrical connection	2 m FEP-cable 4×0.25 mm²
Associated amplifiers	SZAb 400 EX-GR, SZAb 400 EX-WR115, SZAb 400 EX-WR230, SZAb 400 EX-GA

Features

Highest Ex-Protection (Zone 0/20): Approved for use where explosive atmospheres are present continuously or for long periods.
High-Temperature Rating (KH): Specialized engineering supports continuous monitoring of media up to 120°C.
Extended 80mm Probe (L80): Deep-reach design for insulated pipes, large diameters, and deep mounting nozzles.

Applications

Chemical Reactors: Monitoring hot, highly explosive reagents directly inside Zone 0 reaction vessels.
Thermal Oil Loops in Hazardous Zones: Verifying flow in high-temperature heating circuits within refineries.
Solvent Extraction: Reliable monitoring in heated columns where volatile vapors are permanently present.