deltaflowC
Industrial Flowmeters
deltaflowC
dp-Mass Flow Meter for Gases
deltaflowC
Industrial Flowmeters
Background
• Since 1994: Development, Production and Sales of industrial
pitot tubes
– Power Plants
– Oil&Gas
– Waster water plants
– Food&Beverages
• Since 2006: Development, Production and Sales of air mass
flow meters for car manufacturers
• Today: World-market leader for pitot tubes
• Combination of industrial + automotive know-how
• Development of deltaflowC – Industrial gas mass flow meter
deltaflowC
Industrial Flowmeters
Measurement principle
• Profil has two seperate chambers
(upstream / downstream)
• Flow creates dp between chambers
• dp proportional to flow rate
• deltaflowC has integrated pressure
and temperature transmitters
• uC does online calculation of density
• Mass flow is calculated out of
density, dp and pipe geometry
• deltaflowC provides signal of
mass flow, temperature
(„multi variable measurement“)
deltaflowC
Industrial Flowmeters
Versions
• Compact Venturi
Pitot tube
deltaflowC
Industrial Flowmeters
Motivation
• Traditional multivariable dp-measurement
• complex and complicated (reserved only to specialists)
• expensive
• Thermal mass flow meters
• Drift
• Sensitive to condensate and dirt
• Need for user-friendly and cost-effective flow meters
especially in
• Heating, ventilation, air conditioning
• Biogas
• Control of burners and compressors
• Engine test beds
• Extraction systems
• Agricultur (Greenhouse)
deltaflowC
Industrial Flowmeters
Technical data
• Measurement principle: dp, multivariable
• Measured quantities: mass flow, temperature, pressure
• Accuracy: 4% (standard), 2% (calibrated)
• Operational conditions
• Temperature (media): -80….250°C
• Pressure: 10 bar
• Range: 1:25
• Dynamic: 4000 Hz (0.25 ms)
• Interfaces
• 2x analoge outptus
• supply: 18-36 VDC (3-wire)
• Pipe Sizes: from DN20
deltaflowC
Industrial Flowmeters
Benefits
• User-friendly
• Mounting (Standard cutting ring stud)
• Compact and leight-weight
• Set-up: No terminal or Laptop connection required
• Easy design with software (one page)
deltaflowC
Industrial Flowmeters
Benefits
• Accuracy
• High measurement dynamics:
0.25msec vs. Standard-dp-Transmitter: 150-200ms
• -> High Accuracy also when measuring pulsating media
• Measurement Accuracy: 2%
• Price
• Traditional multivariable dp-mass flow meters: typical 5000€
• deltaflowC: 850€
deltaflowC
Industrial Flowmeters
Benefits
• Robust
• Commonly used: thermal mass flow meters
Sensitive to dirt and condensate (humidity, oil residues,
rubbed-off rust…)
• Corrosion-resistant: deltaflowC passed impact test acc.
to IEC 60068-20-4 (SO2, NO2, H2S, CO2)
• High temperature range (Ta = -40…120°C / Tb = -40…250°C)
• Logistic
• „One size fits all“-Technology
• Available ex stock, stockable
• Outputs
• 2 Analog outptus for mass flow + temperature/pressure