D-FL 220 Flow measuring system
D-FL 220 Flow measuring system
D-FL 220 Suitability tested and certified ultrasonic measuring system to measure the velocity and the volume flow of flue gas or process gas in pipes or ducts, especially for wet and aggressive smoke emissions.
The D-FL 220 measuring system works according to the acoustic transit time differential method. Two identical transducers mutually send and receive short ultrasonic pulses. The system calculates the precise gas velocity from the direction-dependent transit time difference. The flow velocity respective volume flow of the waste gas is precisely calculated from the transit time difference dependent on the direction.
Features:
- Non-contact measuring method
- Measurement possible below dew point and for high dust concentrations
- Continuous measurement of normal volume flow and gas velocity
- Automatic zero point and reference point control
- Convenient operation via remote access with web interface
- Operation with or without control unit
- Very low maintenance
Applications:
- Volume flow measuring at low speeds
- Volume flow measurement at high dust content
- Plants with damp and/or aggressive exhaust gas, e.g. in waste incineration plants
Specifications
Measuring range
0 - 3000000m3/h / 0 - 40m/s
Measuring principle
Acoustic propagation delay
Ambient temperatures
-20 ... +50°C, measuring head -40 ... +70°C
Bus protocol
Modbus RTU
Protection class
IP65
Channel diameter
0.5 ... 13m
Supply voltage
24V DC, 0.5 A
Analogue outputs
0/4 ... 20mA, max. load 400Ω
Digital outputs
2 relay outputs, permissable load 48 V/ 0.5 A
Detection limit
<0.3% of measuring range
QAL1 certificate D-FL 220
Yes
EN 15267-3 certificate
Yes
Measuring gas temperature
-20 ... 300 °C (-4…392 °F) standard, other on request
Afmetingen (H x B x D)
Measuring head: 190 Ø × 570 mm
Measuring head housing: 113 x 84 x 188mm
Measuring head housing: 113 x 84 x 188mm
Weight
17 kg
