Diff. Pressure Type Airflow Measurement, Designed for Extreme Condition

In industrial environments, especially under challenging conditions such as high temperature, high pressure, and high humidity, accurate monitoring of air flow and velocity is crucial. Differential pressure-based air velocity measurement, combined with display instruments, provides reliable measurements of air velocity and flow even in harsh conditions, with data easily viewable on display units.

The following introduces three application scenarios utilizing eyc-tech's air flow meters, differential pressure transmitters, average flow measuring tubes, and display instruments, designed for high-humidity and contaminated air, high-temperature and high-pressure environments, as well as mass flow rate and bidirectional measurement applications.

1. High-Humidity Polluted Air

• Application: Flow measurement and recording in high-humidity air pipelines.
• Combination: FDM08 Venturi Inline Type Air Flow Transmitter, DPM05 Flow Computer
• Features
  The Venturi tube design is ideal for measuring the flow of high-humidity or highly contaminated air, offering durability and low-pressure loss characteristics. Since the operating temperature and pressure in industrial processes frequently fluctuate, differential pressure measurement can be affected. To address this, pairing with a cumulative flow computer equipped with temperature and pressure compensation technology effectively corrects the data, ensuring accurate measurements under varying conditions.

FDM08 Venturi Inline Type Air Flow Transmitter

Features : Venturi inline type air flow measurement, a wide range of applications
Sensor type : Differential pressure sensor
Air flow measuring range : Reference airflow range table based on environmental conditions
Output signal: 4 ... 20 mA
Accuracy : ±2%
IP rating : IP65 (Housing)

DPM05 Flow Computer

Display readout : Instantaneous flow : 5-digit / Cumulative flow : 8-digit
Input : Flow / Pressure / Temperature
Output : Current / Relay / RS-485
Accuracy : ±0.2% F.S. ±1 digit
IP rating : IP54 (Front panel)

P048 Universal Pressure Transmitter

Features：Suitable for various equipment. Easy to install. Various thread options (PT/ G / NPT).
Pressure type：Relative pressure / Absolute pressure
Measuring range：-1 ... 1000 bar
Output：4 ... 20 mA / 0 ... 5 V / 0 ... 10 V / 0.5 ... 4.5 V R/M(DC 5 V)
Accuracy：0.5% / 2% F.S.
IP rating：IP65

2. High-Temperature and High-Pressure Environments

• Application: Exhaust air scrubbers are used to treat industrial process emissions, ensuring compliance with environmental regulations and reducing their impact on the environment.
• Combination: AFMP Average Flow Measuring Tube (Pitot tube), and P064 Digital Differential Pressure Transmitter with DPM05 Flow Computer
• Features
  To achieve more stable and precise flow monitoring, averaging data from multiple measurement points becomes crucial for enhancing measurement reliability. Combined with industrial-grade differential pressure transmitters, accurate monitoring is possible even under harsh conditions such as high pressure and high temperature. Additionally, a temperature and pressure-compensated cumulative flow meter can aggregate airflow, process temperature, and process pressure data, providing real-time readings and cumulative flow values after compensation adjustments.

AFMP Average Flow Measuring Tube (Pitot tube)

Features : Multi-point averaging. Suitable for large pipes. Resistant to high temperature and corrosion.
Operating pressure : Standard type : Max. 10 bar / High-temp. type : Max. 4 bar
Operating temperature : Standard type : Max. 200°C / High-temp. type : Max. 600°C
Length : 12"(300 mm)

P064 Digital Differential Pressure Transmitter

Features：Suitable for industrial application. Can measure liquid differential pressure.
Sensor type : Monocrystalline silicon differential pressure sensor
Measuring range：0.1 ... 25 bar
Output：4 ... 20 mA+HART
Accuracy：0.075 ... 0.2%
IP rating：IP65

DPM05 Flow Computer

Display readout : Instantaneous flow : 5-digit / Cumulative flow : 8-digit
Input : Flow / Pressure / Temperature
Output : Current / Relay / RS-485
Accuracy : ±0.2% F.S. ±1 digit
IP rating : IP54 (Front panel)

3. Mass Flow Rate and Bi-directional Measurement

• Application: In aeration tanks, the airflow and air velocity transmitter monitors the air volume supplied to the tank, ensuring stable and adequate oxygen supply to maintain microbial metabolic efficiency.
• Combination: FDM06S Differential Pressure Type Air Flow Transmitter with DPM04 Flow Totalizer
• Features
  Differential pressure type of airflow and air velocity transmitters can measure bi-directionally and feature temperature and pressure compensation for precise and sensitive readings. When combined with display controllers, they offer real-time monitoring and allow users to easily view instantaneous and cumulative data via an LCD display.

FDM06S Differential Pressure Type Air Flow Transmitter

Features : Adopting the differential pressure principle for air flow measurement enables bi-directional airflow measurement and Calculates medium density and mass flow rate.
Sensor type : Differential pressure sensor
Measuring range : Standard version : ± (0.8 ... 40 m/s) / High-pressure version : ± (20 ... 200 m/s)
Output : 4 ... 20 mA + RS-485 / 0 ... 10 V + RS-485 / Frequency (0 ... 100 Hz) + RS-485 / Pulse (Option) + RS-485
Accuracy : ±1.5% F.S. (Option±1% F.S.)
IP rating : IP65 (Body) / IP20 (Probe head)

DPM04 Flow Totalizer

Features : 2" LCD display for air/liquid flow transmitters with RS-485 and relay output, for both instantaneous and cumulative flow monitoring
Display readout : Instantaneous flow : 5-digit / Cumulative flow : 8-digit
Input : Current / Voltage / Frequency / Pulse
Output : Current / Voltage / Relay / RS-485
Accuracy : ±0.1% F.S. ±1 digit
IP rating : IP65 (Front panel)