Compact Liquid Level Sensor with RS485/RS232 Communication

• Customization: Available
• After-sales Service: /
• Application: Health & Medicine
• Model NO.: LLD
• Measuring Range: -16~16 PF
• Resolution: 1 FF
• Response Time: 1 Ms
• Operating/Storage Temperature: 0~45 Celsius / -20~65 Celsius
• Operating/Storage Humidity: 35% to 85% Rh (No Condensation or Icing)
• Operating Voltagee: 5V DC
• Output Signal: 5V
• Operating Current: <20 Ma
• Communication Interface: RS485 / RS232
• Protocol: Modbus RTU
• Transport Package: Standard Packaging or Customized
• Specification: 66*18.6*7.8mm
• Trademark: FOREACH
• Origin: Shenzhen, Guangming
• Production Capacity: 5000000pieces/Year

Product Description

Product Description

LLD-Liquid Level Sensor

LLD primarily tackles empty aspiration and needle collision issues. It measures liquid level height by calculating capacitance, enabling users to determine pipette tip descent height and track liquid levels. It can also connect to an external optocoupler to trigger alarms upon needle collision, preventing tip damage and ensuring precise liquid handling.

LLD can effectively solve the problems of empty suction and probe collision during automated pipetting.

 

 

Product Parameters

LLD LIQUID SENSOR SPECIFICATION
Measuring Range	+16pF
Min. Volume of Liquid	100L
Rated Voltage	5V
Output Signal	5V
Interface	RS232,RS485
Protocol	Modbus RTU
We support customization of diaphragm pumps of various specifications and uses

Detailed Photos

APPLICATIONS OF LLD

In vitro diagnostic equipment: used for in vitro diagnostic analysis instruments such as biochemistry and immunology to ensure the accuracy and efficiency of pipetting.

Environmental water quality analysis: used for environmental water quality analyzers to improve the accuracy and efficiency of pipetting.

FEATURES OF LLD

High Precision: Achieves a resolution of 1fF, enabling accurate detection of liquid volumes as small as 50μL.

Fast Response: Provides feedback within 1mS.

Dual Signal Alerts: Liquid level detection and probe collision.

 Interference Resistance: Effectively resists interference, distinguishing even subtle differences between droplets and liquid surfaces.

ADVANTAGES OF LLD

Noise Compensation: LLD uses a dual-channel noise compensation algorithm to eliminate signal interference, ensuring a low false alarm rate.  

Communication & Compatibility: It features RS485 and RS232 interfaces, adopts the Modbus industrial standard protocol, and supports cascading multiple devices while being compatible with most analytical instruments on the market.  

Reliability & Safety: The sensor has passed EMC testing, guaranteeing high reliability, safety, and stability.

CUSTOMIZATION OPTIONS AVAILABLE

As an OEM, ODM and OBM partner, we offer customization support for pumps, allowing customers to tailor products to their specific needs and applications.

WARRANTY AND ENVIRONMENTAL CERTIFICATIONS

EMC testing and Rohs certification ensure that the product is highly reliable, safe and stable. Then we also provide a warranty to give customers peace of mind and ensure that their needs are met.

FAQ

Q1: How to choose a suitable sensor?
Please tell us the liquid, flow range, application, and working conditions, our professional sales staff will recommend the right model for you.

Q2: Are you a trading company or manufacturer?
We are a factory.

Q3: How long is the delivery time?
Depends on the quantity.

Q4: Do you provide samples? Is it free or extra?
Yes, we can provide samples, it depends on the product.

Q5: What are the payment terms?
Payment method: T/T, etc.