Bühler Technologies NT 61-Z0-Atex ATEX Explosion-Proof Level Switch
Price: Contact
Brand: Buhler
Category: Cảm biến công nghiệp
Supplier: AnhNghiSon
Origin: Germany
0911472255The NT 61-Z0-Atex Series ATEX Explosion-Proof Level Switch is engineered and manufactured by Bühler Technologies GmbH – a premier German technology leader specializing in fluid control systems and industrial process automation. The NT 61-Z0-Atex series is specifically developed to fulfill the most stringent explosion protection safety regulations (ATEX Directive 2014/34/EU) for liquid level monitoring and limit alarming inside hazardous operating areas with flammable gas, vapor, or mist presence.
Operating on a proven magnetic float principle, the Bühler NT 61-Z0-Atex utilizes a magnetic float moving vertically along a stainless steel guide tube. Hermetically sealed reed contacts are positioned inside the guide tube. As liquid level fluctuates, the magnetic float actuates or deactuates reed contacts at pre-configured alarm setpoints (high level, low level, or intermediate switching thresholds). Alarm signals are transmitted via intrinsically safe isolating switch amplifiers (Ex-i) to actuate refill pumps, trigger emergency shut-off valves, or sound warning sirens.
Key technical highlights of the Bühler Technologies NT 61-Z0-Atex:
- ATEX Zone 0/1 Explosion-Proof Certification: Designed with the wetted probe assembly rated for direct installation inside Zone 0 (permanently hazardous explosive atmospheres) and electrical connections rated for Zone 1 (Ex ia IIC T4...T6 Ga/Gb), ensuring complete plant safety compliance.
- High-Grade Chemical-Resistant Construction: The guide tube and float assembly are fabricated from 316L Stainless Steel (1.4571) or chemical-resistant engineering polymers, providing superior resistance against corrosive hydraulic fluids, mineral oils, industrial chemicals, and liquid fuels.
- Modular & Flexible Configuration: Allows customization of sensor stem length (up to 1,500 mm), selection of up to 4 switching contact setpoints, and optional integration of a PT100 temperature sensor for simultaneous level and liquid temperature monitoring on a single unit.
- Heavy-Duty IP65/IP67 Enclosure Rating: Electrical connection housings are securely built into robust explosion-proof junction boxes, resisting ingress of dust, moisture, and ambient condensation under harsh outdoor or industrial plant environments.
The Bühler NT 61-Z0-Atex ATEX Level Switch is an indispensable safety instrument across oil refineries, fuel storage depots, chemical processing facilities, heavy-duty industrial hydraulic power units, thermal power stations, and manufacturing lines requiring certified Ex safety.
• Manufacturer: Bühler Technologies GmbH
• Product Line / Model: NT 61-Z0-Atex (NT 61 ATEX Series)
• Device Type: ATEX Explosion-Proof Liquid Level Switch
• Country of Origin: Germany
• Explosion-Proof Certification: ATEX Directive 2014/34/EU (II 1/2G Ex ia IIC T4...T6 Ga/Gb - Zone 0/1)
• Electrical Safety Circuit: Intrinsically Safe (Ex ia) - Requires connection via Ex-i isolating amplifier
• Operating Principle: Magnetic float actuating hermetically sealed reed contacts
• Wetted Parts Materials: 316L Stainless Steel (1.4571) / NBR or Stainless Steel Float
• Sensor Probe Length: Customized according to application from 200 mm to 1500 mm
• Number of Switching Contacts: 1 to 4 configurable switching points (NO / NC / SPDT)
• Minimum Fluid Density: ≥ 0.7 g/cm³
• Max. Operating Pressure: Up to 10 bar (1 MPa)
• Fluid Operating Temperature: -20°C to +80°C (High-temperature options up to +100°C)
• Ambient Operating Temperature: -20°C to +70°C
• Enclosure Protection Rating: IP65 / IP67
• Process Connections: Threaded Flanges G1", G1 1/2", G2" or DIN/SAE standard flanges
• Electrical Connections: Explosion-proof terminal box with standard DIN plug / Cable glands M16x1.5 / M20x1.5
• Target Media: Hydraulic oils, lubricating oils, fuels, solvents, industrial chemicals, and Ex-zone fluids.
