LIQUI-FLOW mini: Micro Fluidic Mass Flow Meters for Liquids0 pages
LIQUI-FLOW mini
TM
Micro Fluidic Mass Flow Meters for Liquids
> Introduction
Bronkhorst High-Tech B.V. has been the pioneer in the field of
micro to low flow liquid metering instruments based on a thermal
measuring principle. A wealth of experience has been gathered
over many years, which has resulted in a series of instruments
covering Full Scale flow ranges from 75 mg/h up to 20 kg/h.
> Micro fluidic concept
The use of micro fluidic devices for research and analytical
purposes has some important advantages. Firstly, because the
internal volumes within the instruments are very small, the
analysis will be faster and the amount of reagents and analytes
used can be reduced. The latter is especially significant for
expensive reagents. Furthermore, the physical dimensions are
much smaller than those of conventional devices. This enables
Life Sciences system integrators to downscale the size, inherently
reducing the costs of ownership, of their equipment. Also, the
availablility of compact and lightweight instruments could lead
to the development of portable systems.
> LIQUI-FLOW mini for liquids
TM
Bronkhorst High-Tech designed the LIQUI-FLOW mini Mass Flow
Meter (MFM) for liquids according to the micro fluidic concept.
This very compact instrument measures ultra low flow ranges
from 1,5…75 mg/h (0,025…1,25 µl/min) up to 12…600 mg/h,
based on water. The straight, duplex steel sensor tube (W1.4462)
has an internal volume of less than 1 mm3 and operates on the
thermal measuring principle. Due to its high pressure rating (up
to 1000 bar; higher on request) the MFM is suited to HPLC systems.
The instrument is equipped with a microprocessor-based printed
circuit board, offering high accuracy and excellent temperature
stability. The RJ45 connection is used for power supply and for
both analog and digital (RS232/RS485) communication.
TM
Actual size
> Features
compact assembly ensure s space efficienc y
very small internal sensor volume
(0,88 mm3; smaller on request) for fast analysis
high accurac y and repeat ability
insensitive to mounting position
high pre ssure rating (P N1000; higher on reque st)
easy cleaning due vir tually no dead volume
straight sensor tube reduce s risk of clogging
> Applications
(Bio)medic al laboratorie s
Food & Pharmaceutical industry
Analytical laboratories and systems (H PLC)
Flow chemistry using microreactors