Electronic tuning fork level switch NS210 series

Product Overview

The NS210 tuning fork type material level limit switch is a universal material level limit switch. The tuning fork is excited by a piezoelectric crystal to generate vibration, and when the sound is immersed in liquid or solid, the vibration frequency changes. This frequency change is detected by electronic circuits and is not affected by dielectric electrical parameters, turbulence, agitation, bubbles, vibration, and other factors. There are no moving parts, so there is no need to adjust maintenance costs. It is an ideal choice for material level switches under complex working conditions.

• Hydraulic/lubrication/pump protection/cooling system/pulp water treatment/food and beverage
• no moving parts
• Not affected by medium density and electrical parameters – stainless steel liquid contact parts
• AC/DC power supply optional
• relay output
• Switchable between normally open and normally closed
• Can be used for solid or liquid measurement
• Two electronic heads to choose from (compact/sturdy)

Product Application

Hydraulic/lubrication/pump protection/cooling system/pulp water treatment/food and beverage

Technical Specifications

• Measurement medium: liquid or solid particles
• Measurement density: ≥ 0.6g/cm
• Pressure resistance: 20 bar
• Adjustable delay: 1-20s (only applicable to rugged models)
• Response time: 1 second
• DC power supply type: 24 ± 10% Vdc
• Switch output: Output type: Relay (normally open and normally closed setting)
• Load capacity: AC220V (110V)/3A, DC
• Wiring protection: reverse phase
• Power consumption: ≤ 1W
• Temperature: Operating temperature: -20 ° C to 80 ° C
• Medium temperature: -40 ° C to 150 ° C
• Material: Compact shell: Stainless steel 304
• Durable shell: die cast aluminum
• Fork body: Stainless steel 316
• Protection level: IP65
• Outgoing method: Compact shell: Terminal wiring
• Durable casing: solenoid valve plug
• AC power supply type: 110Vac or 220Vac

wiring Diagram

Dimensional drawing (mm)