MA Staugitter DLT8005 15 AEN 001
MA Staugitter DLT8005 15 AEN 001
MA Staugitter DLT8005 15 AEN 001
Stagnation point
Direction of flow
Ptot
Ps
Flowing
medium Stagnation
pressure
Pstag
2
Advantages in comparison with other measurement sion. mass flow measurement grid should not be used
methods when sticky particles are floating in the air flow.
In contrast with other integrating measured value trans-
ducers (aperture plate, venturi nozzle, etc.), pressure Positioning
losses through the mass flow measurement grid are The grid is provided with an arrow that indicates the
very low. The infeed and discharge distances can be direction of flow. The differential pressure connection
kept considerably shorter in the case of the mass flow for the differential pressure measuring transducer is
measurement grid. This has the advantage that long air implemented using a threaded sleeve G1/4", which must
channel distances are no longer required. Every retro-
fitting is easy to perform in the case of existing plants.
Mechanical design
The mass flow measurement grid consists of stainless
steel. It is completely welded and suited for tempera-
tures up to 400 C. Round designs with and without
flanges are available. Rectangular designs generally do
not require flanges.
Measuring transducer
The measuring transducer converts the existing differen-
tial pressure into an electrical variable. According to
design, this is 0 ... 20 mA, 4 ... 20 mA, or 0 ... 10 V. In
combination with the mass flow measurement grid, any
commercial measuring transducer with a measuring
range from 0 to 10 mbar can be used.
Advantages:
Volume flow measurement of gaseous Consists of stainless steel
media in channels, especially supply
air for combustion systems Basic temperature range up to 400 C
Volume flow measurement possible for Maintenance-free in non-polluted air
exhaust gases using optional materials Rectangular and round designs
Very low pressure losses in comparison available
with conventional technology In case of an increased particle load
Small infeed and discharge distances, backflushable (optional)
thus retrofitting possible in existing Connection to differential pressure
plants. Long air channels no longer measuring transducer via impulse line
required. or according to customer needs
www.lamtec.de 3
LAMTEC | Mass Flow Measurement Grid | Volume Flow Measurement
400 C. Temperature ranges going beyond these values Compared mass flow measurement grid on the
are available upon request. Non-aggressive, non-explo- test rig 1 % of measured value
sive, gaseous media with a known density can be used Calculated mass flow measurement grid
as measuring media. 5 % of measured value
Calibrated mass flow measurement grid on site
Technical information 2 % of measured value
The system pressure lies between 0.5 and + 0.5 bar
(underpressure/overpressure). The measuring precision The pressure loss is calculated according to the specific
is specified at 1 % of the measured value. The measur- variable and specified in the order documentation.
ing precision is described as follows:
Design software
The design software calculates the differential pressure calculates the operating volume flow from the meas-
curve specifically for each variable. For this purpose, the ured differential pressure. This can also be output as the
grid geometry, measuring medium (density), tempera- standard volume flow when the temperature of the
ture, and system pressure must be known. The software measuring gas is known.