Liquitrend QMW43
Technical Data
ComparePhysical medium properties
| Measuring Principle | |
| Measuring method | Capacitive- conductive |
| Application | Continuous inline measurement of build-up and liquid conductivity |
| Supply voltage | 10…30 VDC IO-Link: 18…30 VDC |
| Measuring range | Conductivity: 0 µS/ cm...100 mS/ cm Build-up thickness: 0 mm…10 mm |
| Accuracy | Build-up: <= 1% of measuring range Conductivity: 0...2 mS/ cm: <= 5% of reading 2...20 mS/ cm: <= 7% of reading 20...50 mS/ cm: <= 10% of reading 50...100 mS/ cm: <= 15% of reading |
| Ambient temperature | -40°C…+70°C (-40°F...+158°F) |
| Process temperature | -20°C…+100°C (-4°F...+212°F) +150°C (+302°F) for 1h |
| Process pressure | Vacuum...25 bar (Vacuum...362.5 psi) |
| Output / communication | 4...20 mA Frequency IO-Link |
| Connection | Threads G1", G3/4", M24, Tri-Clamp ISO2852, DIN11851 |
| Ex certification | No Ex certificates CSA C/US General Purpose |
| Certificates, declarations and approvals | EN10204- 3.1 EHEDG 3-A EG1935/2004 CRN approval |
| Options | Customer specific configuration Cleaned from oil and grease Surface roughness test Welding- and process adapters |
Liquitrend QMW43 is specially designed for the food & beverage industry, helping customers ensure product safety, improve product quality and increase equipment availability. Combining the conductivity and capacitance measuring principles, its unique, reliable method of measuring the thickness and conductivity of buildup deposits helps you make the right decisions.
Advantages
Reliable, repeatable, high-precision measurement of buildup thickness and conductivity, independent of the medium type
Perfect combination of conductivity and capacitance measuring principles; the device automatically and precisely detects the measuring mode and switches modes automatically
Verify the cleaning status without opening the tank
Stainless steel sensor, compact structure, flush-mounted, direct view of the condition at critical process points in pipes or tanks
Plug-and-play, simple commissioning, no presetting required
Hygienic design with traceable materials
IO-Link digital communication available
Application
Optimize cleaning results, monitor mixing uniformity, identify media, suitable for liquids, suspensions, pasty media, etc.
Installed on storage tanks, mixing tanks, process vessels with or without agitators, pipes and peripheral equipment
Process connections: threaded and hygienic connections
Sensor design: flush-mounted; surface finish: Ra < 0.76μm
Temperature: -20...+100°C (-4...+212°F); CIP/SIP cleaning: withstands up to 150°C (302°F) for no more than 1 hour
Certificates and declarations: 3A, FDA, EHEDG and EG1935/2005, EN10204-3.1
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Technical documentation
Technical data
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Source:Endress+Hauserwebsite public information
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · Conductive Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of Conductive.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Conductive for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · Conductive Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of Conductive.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Conductive for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · Conductive Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of Conductive.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Conductive for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · Conductive Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of Conductive.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Conductive for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
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