EGE Elektronik Sensor for Explosive Productseries ST 111 K-L140

Description

EGE Elektronik Sensor for Explosive Productseries ST 111 K-L140 is the authoritative choice for facilities that operate in “permanently hazardous” areas where standard probe lengths cannot reach the flow core. While standard Ex-sensors are often limited to Zone 1, the ST 111 series is certified for Zone 0 (Gas) and Zone 20 (Dust), meaning it is safe for installation directly inside tanks or pipes where explosive atmospheres are a constant condition. The “L140” designation indicates a 140mm probe length. This is critical for industrial infrastructure with heavy mineral wool insulation, protective cladding, or high-profile stand-off nozzles. By penetrating deep into the medium, the ST 111 K-L140 ensures the sensing tip captures the true flow profile of the liquid, providing accurate monitoring in large-bore pipes.

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 K-L140
Product ID	P11151
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	140 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	-20 … 40 °C
Temperature range in T5	-20 … 55 °C
Temperature range in T4	-20 … 85 °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.	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 PUR-cable, 4×0.25 mm²
Associated amplifiers	SZAb 400 EX-GR, SZAb 400 EX-WR115, SZAb 400 EX-WR230, SZAb 400 EX-GA

Features

Thermodynamic Reliability: Solid-state design with zero mechanical wear or maintenance requirements.
Premium AISI 316 Ti Housing: 1.4571 stainless steel provides maximum resistance against corrosive chemicals and oils.
Standard G1/2″ Connection: Universal threading for easy integration into high-pressure systems.
High Pressure Resistance: Robust construction rated for safe operation in systems up to 60 bar.

Applications

Petrochemical Refining: Monitoring flow in large-bore main lines where explosive vapors are permanently present.
Large-Scale Chemical Reactors: Safe flow verification deep within large vessels containing hazardous reagents.
Extremely Insulated Systems: Reaching through thick thermal cladding to monitor flow in volatile temperature-controlled lines.