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OLN21 Series
Product features and applications:
• Supports customizing the timing for output delay switching
• Utilizing optical principle technology, it can be used in devices located in vibrating environments.
• Acid- and alkali-resistant, suitable for solutions such as diesel, wastewater, water-based solutions, alcohol, and refrigerants.
Category:
Optical Liquid Level Sensor Dedicated for Screw Compressors
Keywords:
FINEHOOD
Sensor
Retail price
Yuan
Market price
Yuan
- Product Details
- Product Dimensions
- Product Selection
- Wiring Diagram
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- Commodity name: OLN21 Series
- 产品特点及应用: • Modular design for easy replacement of the sensing element <br/> • Supports customizing the timing for output delay switching <br/> • Utilizing optical principle technology, it can be used in devices located in vibrating environments. <br/> • Acid- and alkali-resistant, suitable for solutions such as diesel, wastewater, water-based solutions, alcohol, and refrigerants.
• Modular design for easy replacement of the sensing element • Supports customizable output delay switching timelines
Product Name OLN21 Series Operating voltage Range: 10–30 VDC; recommended setting: 24 VDC Output signal Relay Normally Open & Normally Closed Load current ≤200mA Switch lifespan 100,000 times Working fluid temperature -30 to 120°C Ambient temperature -30 to 80°C Delay time After the liquid level switches from "present" to "absent," the relay switches after a delay of 5 ± 2 seconds. Probe Material Glass + Galvanized Nickel-Plated Carbon Steel Body Material PA66 with Glass Fiber Operating pressure ≤4 MPa (probe facing forward) Protection Level IP 55 Wire specifications UL2464 18AWG, L=1m, 5-core: Brown, Blue, Gray, Pink, Orange Install torque For metal-to-container connections, the recommended torque is 50 N·m, with a maximum of 70 N·m advised.
The recommended torque for the metal head and body is 1.0 N.m, with a suggested maximum of 1.2 N.m.Interface Specifications 1/2" NPT Wiring Method Brown: Power Positive Terminal
Blue: Power negative terminal
Gray: Relay Common Terminal
Pink: Relay Normally Open Contact
Orange: Relay Normally Closed TerminalIndicator light status Solid light: Liquid level present; Slow flash: Delaying; Fast flash: No liquid level. Feature Description Normal level: The gray and pink lines are conducting, and the indicator light stays on continuously.
Low level: Gray and pink lines are disconnected, with the indicator light flashing rapidly.Note Customers should use brown, blue, gray, and pink threads; the orange thread must be removed. Installation Precautions
• Please connect the cables according to the wiring method specified in the specification sheet.
• This product is not suitable for solutions containing adhering suspended particles or viscous liquids.
• This product may not function properly with certain emulsified substances and semi-solid liquids.
• Please do not scratch the probe during installation and use.
• This product cannot be used in environments with infrared light sources.
• The optimal installation angle ranges from 0° (parallel to the horizontal plane) to an incline of up to 45°. The recommended installation method is shown in the diagram below:
• Within a 30mm radius at the front end of the liquid level sensor's cone, there must be no reflective surfaces or other obstructions. Additionally, the cone-shaped sensor tip of the liquid level sensor must maintain a minimum distance of 30mm from the bucket wall, as shown in the figure below.
• When installing the threaded sleeve for the liquid level sensor, the sensor's sensing head must remain exposed outside the sleeve.
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Unit: mm
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Optical and Liquid Level Sensor Dedicated for Rod Actuators
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OLN21 Series
Product features and applications:
• Supports customizing the timing for output delay switching
• Utilizing optical principle technology, it can be used in devices located in vibrating environments.
• Acid- and alkali-resistant, suitable for solutions such as diesel, wastewater, water-based solutions, alcohol, and refrigerants.
Category:
Optical Liquid Level Sensor Dedicated for Screw Compressors
Keywords:
FINEHOOD
Sensor
Retail price
Yuan
Market price
Yuan
Online Quotation Request
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