LIQUI-FLOW® series L10 / L20
digital Liquid Mass Flow Meters / Controllers
General
LIQUI-FLOW® Series L10/L20 are digital Liquid Flow Meters/Controllers for low flow ranges. 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.
Lowest range 0,25 ... 5 g/h
Highest range 20 ... 1000 g/h for fluids with thermal properties similar to H2O
Note:
For ultra low flow ranges, Bronkhorst High-Tech offers the µ - Flow series.
Ranges: 1,5 ... 30 mg/h up to 0,1 ... 2 g/h IPA- or H2O-equivalent
Features
- Fast and accurate measurement
- No moving parts
- Thru-Flow measurement
- Suitable for liquids with low boiling point
- Attitude insensitive
- Very small internal volume
- In combination with a control valve: continuous and stable control
- Analog or digital: RS232, Profibus-DP®, DeviceNetTM or Modbus
Applications
- Semiconductor industry
- Pharmaceutical industry
- Food industry (flavors, additives)
- Biotechnical industry
- Analytical laboratories
- HPLC-applications
Features
Flow control is achieved by integrating a control valve onto the body of the Liquid Flow Meter. This control valve has a purge connection to eliminate air or gas during start-up. The electronic control function forms part of the normal circuitry in the meter. Alternatively the liquid flow can be controlled using a close-coupled pump.
For more information see Precise liquid dosage using a flow meter controlled pump.
Flow capacities (based on H2O equivalent)
| Liquid Flow Meter |
Ranges |
| Series L13 |
min. 0,25 ... 5 g/h - max. 5 ... 100 g/h |
| Series L23 |
min. 2 ... 100 g/h - max. 20 ... 1000 g/h |
| Liquid Flow Controller |
|
| Series L13V02 |
min. 0,25 ... 5 g/h - max. 5 ... 100 g/h |
| Series L23V02 |
min. 2 ... 100 g/h - max. 20 ... 1000 g/h |
Leaflet
For more information see leaflet "LIQUI-FLOW series L10/L20"
|  Liquid Flow Meter  Liquid Flow Controller
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