A New Level of Precision Monitoring, Compatible with Multiple Flow Throttling Devices | FDM06-X Thermal Mass Differential Pressure Signal Processor

In industrial sites, gas flow measurement has long gone beyond simple pipeline monitoring. It directly affects energy efficiency, process stability, pollution emission compliance, and has become a key data source for ESG carbon emission reporting and energy auditing. However, the currently widely used traditional differential pressure solutions still face bottlenecks: large errors under low flow conditions, obvious zero drift, and often being bound to a single flow restriction device. These limitations make it difficult for users to obtain highly accurate and reliable data in scenarios such as cleanrooms, process gases, compressed air, and emission monitoring.

Why does the market need a new generation of signal instrument solutions?

Today’s industrial measurement is facing several challenges:

• Low-speed measurement bottleneck: Traditional differential pressure solutions are difficult to accurately detect below 5 m/s, making them unsuitable for laminar flow and micro airflow fields.
• Insufficient zero stability: Long-term operation is easily affected by the environment, causing data drift and increasing maintenance costs.
• Lack of application flexibility: General instruments can only be used with a single flow restriction device, making it hard to apply across different fields.
• Energy and carbon management gap: Most can only provide instantaneous data and cannot be converted into data required for ESG reporting.

Therefore, the market needs a new generation signal processor that simultaneously offers high sensitivity, high turndown ratio, long-term stability, and multi-application capability.

Innovative Breakthroughs Brought by FDM06-X Thermal Mass Signal Processor

With differential pressure principle + hot-wire technology as its core, it is specially designed to be used with various flow throttling devices (Pitot tubes, Venturi tubes, orifice plates, V-cones, Annuar tubes, average flow velocity probes, and other differential elements), converting them into usable velocity/flow signals.

Core Features:

• High accuracy ±1.5% F.S.: stable output without temperature/pressure compensation.
• High turndown ratio 100:1: covers 0.2 m/s ~ 60 m/s, precise across the entire range.
• Multiple flow restriction device compatibility: a single platform compatible with multiple differential elements.
• Multiple outputs: 4–20 mA, 0–10 V, Relay, RS-485 (Modbus RTU), easily integrated with PLC/SCADA.

Value-Added Options: Extension to Energy and ESG

• With DPM03 Multifunction Signal Display Monitor - 

Provides full-range linear planning and multi-segment K-value compensation, ensuring high accuracy even under different flow throttling devices.

• With DPM04 Flow Totalizer - 

Not only shows instantaneous flow, but also long-term cumulative usage data, converting through RS-485 into energy measurement and carbon emission values, serving as reliable data for ESG reports and energy management.

FDM06-X Flow → Carbon Emission Scenarios and Formulas

A. Fuel combustion (natural gas / LPG, direct emission)

Logic: When fuel burns, carbon elements are almost completely converted into CO₂. Emissions depend on fuel consumption, Net Calorific Value (NCV), and IPCC emission factor (EF, kg CO₂/GJ).
Example: Natural gas 500 Nm³/h × 24 h → 500 × 24 × 2.14 / 1000 = 25.7 t CO₂

B. Compressed air usage (indirect emission)

Logic: Air itself is not a greenhouse gas, but compression consumes electricity. Consumption × Specific Energy Consumption (SEC) → converted into electricity use, then multiplied by power emission factor.
Example: Compressed air 3000 Nm³/h × 8 h, SEC = 0.11 kWh/Nm³, power emission factor 0.474 kg CO₂/kWh → 3000 × 8 × 0.11 × 0.474 / 1000 = 1.25 t CO₂e

C. Process direct emissions (CO₂, N₂O, SF₆, direct emission)

Logic: Greenhouse gases released in the process are converted into CO₂ equivalent based on mass × Global Warming Potential (GWP, 100-year, AR6). Common GWP: CO₂ = 1, N₂O = 273, SF₆ = 24,300.
Example: N₂O 0.5 kg/h × 2 h, GWP = 273 → 0.5 × 2 × 273 / 1000 = 0.273 t CO₂e

D. Methane leakage (CH₄, direct emission)

Logic: Methane leakage itself is a strong greenhouse gas, converted into CO₂ equivalent based on mass × Global Warming Potential (GWP, 100-year, AR6). CH₄ GWP: 29.8 (fossil source), 27.9 (non-fossil source).
Example: CH₄ leakage 2 kg, fossil fuel source → 2 × 29.8 / 1000 = 0.0596 t CO₂e

References: IPCC 2006 Guidelines, ISO 1217, IPCC AR6, GHG Protocol, Taiwan Energy Administration 2024

Applicable to Multiple Application Fields

• Industrial compressed air and energy management: pipeline consumption monitoring by zone / leakage detection and energy efficiency statistics / energy metering with pulse output
• Gas supply and process control: gas pipeline flow metering and allocation / gas mixing ratio monitoring / real-time monitoring of high-pressure, high-velocity gases (nozzle or Venturi extraction)
• HVAC and cleanrooms: air duct flow monitoring / cleanroom laminar flow / positive-negative pressure monitoring / laboratories, pharmaceutical plants, electronics plants environment monitoring
• Biotech and pharmaceutical industry: sterile spaces / gas supply stability monitoring
• Environmental monitoring and ESG: pollution emission metering and control / compressed air, fuel carbon equivalent conversion / energy statistics data source for ESG reporting

eyc-tech FDM06-X
Thermal Mass Diff. Pressure Signal Processor

High-accuracy thermal mass differential pressure sensor
with K-factor correction, real-time display,
versatile outputs, and compatibility with various elements.
Sensor type : Hot-wire sensor
Turndown ratio : 100 : 1
Output : 4 ... 20 mA / 0 ... 10 V / Relay / RS-485
Accuracy : 60 m/s：±(1.5% F.S.)
IP rating : IP65