LIQUI-FLOW™ Including μ-FLOW Thermal Mass Flow Meters / Controllers for Liquids

Introduction Bronkhorst High-Tech B.V., the European market leader in thermal Mass Flow Meters/Controllers and Electronic Pressure Controllers, has many years experience in designing and manufacturing precise and reliable measurement and control devices. With a wide range of instruments, Bronkhorst offers innovative solutions for many different applications in many different markets. The instruments are made to customers’ specification, in various styles, suitable for use in laboratory, industrial environment, hazardous areas, semiconductor processing or analytical equipment. LIQUI-FLOW™ series...

Technical specifications Models and flow ranges Measurement / control system Liquid Mass Flow Meters; PN400 (pressure rating 400 bar) Model Accuracy, standard (based on actual calibration) Liquid Mass Flow Meters; PN100 (pressure rating 100 bar) Settling time (controller) L01 Series 2…4 seconds L10/L20 Series < 2 seconds Operating temperature liquids with thermal properties similar to H2O Temperature sensitivity L01 Series ±0,2% FS/°C L10/L20 Series ±0,1% FS/°C Liquid Mass Flow Controllers; PN100 (pressure rating 100 bar) Attitude sensitivity Warm-up time 30 min for optimum accuracy; 10 min....

Mass Flow Meter IP65 Mass Flow Controller Industrial style LIQUI-FLOW™ series The LIQUI-FLOW™ series L10I/L20I digital Liquid Flow Meters / Controllers for low flow ranges are equipped with a rugged ‘industrial style’ (IP65) pc-board housing for use in industrial environments. The instruments operate on a thermal, thru-flow measuring principle. The flow meter can be connected to a control valve to form a closed control loop. The standard direct acting valve (model C2I) is normally closed, has a pressure capability of 100 bar (1500 psi) and a purge connection for easy elimination of air or gas....

Application examples Verifying pumps Liquid Delivery with Vapour Control LIQUI-FLOW™ and μ-FLOW meters are used in analytical applications in combination with HPLC pumps, verifying the pump performance or even, as shown in this example, close-coupled with a gear pump. Using the integrated PID controller, the setpoint signal continuously adjusts the rotation speed of the pump. The CEM-System (Controlled Evaporation and Mixing) is an innovative Liquid Delivery System (LDS) that can be applied for atmospheric or vacuum processes. The vapour generation system consists of a liquid flow controller,...

Model number identification LNN VNN Base model Internal seals Kalrez (FFKM) Sensor code Connections (in/out) Factory selected Customized IO options (pin 5, advanced operation) 000 1/8” Face seal male Digital output, min/max alarm Digital output, counter limit reached Digital output, enabled by setpoint (for shut-off ) Digital output, high/low switch via remote parameter 1/4” Face seal male Digital pulse output, batch counter 4…20 mA input, external pressure sensor Digital input, controller mode valve close Digital input, controller mode valve purge Digital input, reset counter Digital input,...