Liquids level indicator NBK series

waterbypassmagnetic

Highlights

• Insensitive magnetic roller or ball indicator operable on site without external power
• Limit switches
• Analog output
• HART, Profibus-PA, Foundation Fieldbus

Description
Kobold bypass level indicators provide continuous measurement, display and monitoring of liquid levels. The bypass tube is mounted to the vessel side wall; by the principle of communicating vessels the liquid level in the bypass equals the vessel level. A float with embedded circular magnets follows the liquid level inside the bypass tube and transmits it non-contact to an external display or to monitoring devices. A range of indication and monitoring options is available.

Applications
Bypass level indicators are suitable for continuous level measurement, indication and monitoring of liquids in tanks and vessels across industrial sectors (process, chemical, water and wastewater, HVAC, energy).

Special features

• Wide-angle, easy-to-read display
• Broad selection of wetted materials

Specifications / Technical data

• Measuring length: max. 5.5 m (longer: in 2 sections)
• Scale: %, cm, dm (other scales on request)
• Start of measuring range: center of bottom end connection
• End of measuring range: center of top end connection
• Accuracy: ±10 mm
• Repeatability: ±5 mm
• Hysteresis: dependent on medium viscosity
• Ambient temperature: metal design -20°C … +80°C
• Plastic design: 0°C … +50°C
• Storage temperature: see ambient temperature
• Climatic category: Class D according to IEC 654 Part 1: non-sheltered locations with direct climatic influence
• Ingress protection: IP54, IP65 (optional)
• EMC: in accordance with NAMUR recommendation NE 21
• Process connection: flanges acc. EN 1092, ANSI B16.5, DIN2512
• Nominal size: DN25/1/2" (other sizes on request)
• Nominal pressure: PN40, ASME Cl150 / 300 (others on request)