The study of human energy metabolism is one of the most important topics in human biology research, with a focus on human response (adaptation) to different ecological environmental conditions, including survival limitations and stress, energy acquisition and distribution (for sustaining and productive consumption), and its significance for human well-being and health (including human survival and reproduction).

The portable human energy metabolism measurement system adopts the gold standard indirect calorimetry method, consisting of an FMS portable analysis host (or optional ultra portable FoxBox analyzer), FlowMask-100 human respiratory sampling pump, and professional data acquisition software. It is a portable and efficient human respiratory metabolism measurement system. Its main technical features are:

1) Portable multi parameter high-end scientific research grade host system, including CO2 analyzer, O2 analyzer, water vapor analyzer, temperature monitoring, data acquisition system, gas sampling unit, and Baseline module (dual channel gas path converter), etc

2) Dual LCD display screen (with backlight), control and display air humidity RH, dew point temperature, CO2 content, O2 content, flow rate, etc. online through Mode, Adjust, Enter control keys, optional host system with touch screen

3) 12Channel data collector, capable of connecting 6 temperature sensors and other sensors, with online data storage function

4) Quick response, gas analysis response time less than 1 second, allowing for real-time reflection of instantaneous changes in breathing

5) Highly integrated and portable, it can be used for outdoor, in car, and laboratory research on human energy metabolism measurement; Can be used for measuring animal energy metabolism simultaneously (requires the selection of an animal respiratory metabolism measurement room)

6) Portable FlowMask-100 airflow control sampling system, integrating airflow sampling, airflow control, and mass flow meter in one suitcase, with LED real-time display of flow data

7) Manifold type secondary sampling, suitable for connecting various secondary sampling units or gas analyzers

8) Equipped with a dedicated respiratory mask, the mask material is PC+medical silicone, which can be directly washed with water, clean and hygienic; Adjustable headband for easy wearing; Porous intake, quiet and comfortable

9) Wearable activity data collector, automatically collects 3D activity data, temperature (body surface temperature), humidity (body surface humidity), etc

Optional infrared thermal imaging unit for imaging measurement of surface and environmental temperature distribution, to study and analyze the relationship between surface heat dissipation temperature distribution and environmental temperature

Technical indicators:

1) O2Analyzer, fuel cell technology, with a service life of about 2 years, and replaceable fuel cells;

2) CO2Analyzer, colorless dispersion dual wavelength infrared gas analyzer;

3) Water vapor analyzer, platinum electrode capacitive sensor;

4) Measurement range: O2, 0-100%; Atmospheric pressure, 30-110 kPa; CO2， 0 – 5%； Water vapor pressure, 0-100% RH (non condensing), 0-5000 kPa WVP, 0-10 ug/ml WVD

5) Measurement accuracy: O2: 0.1%; CO2: 1% of the reading; H2O: 1% of the reading

6) Resolution: O2: 0.001%; CO2: 0.0001%-0.01%； H2O: 0.001%RH

7) Signal drift: O2:<0.02% per hour at constant temperature; CO2:<0.001% per hour; H2O:<0.01% RH per hour.

8) Signal input: 14 0-5V BNC analog inputs

9) Output: Analog output: O2, CO2, 2 customizable; Digital output: RS-232

10) Built in memory: capable of storing 8190 sets of data; Storage time interval: 0.1 seconds to 1 hour, user-defined

11) Airflow rate: 10-2000mL/min; Flow control accuracy: 2% of the reading

12) Flow resolution: 0-99.9mL/min is 0.1mL/min; Above 100mL/min is 1mL/min

13) Working temperature: 0-50 ° C, no condensation

14) Power supply: 12-15 VDC, with 220V AC adapter; Optional lithium battery power supply, convenient for field operation

15) Size: 48cm * 37cm * 18cm; Weight: 7kg

16) FlowMask-100Airflow flow rate: 30-110L/min adjustable, Airflow measurement resolution: 0.1L/min, Airflow measurement accuracy: ± (2.0+0.5FS)% repeatability: 1.0%

17) Display: LED digital display, capable of displaying instantaneous flow and total flow

18) Power supply requirement: 220VAC

19) Size: 51cm * 21cm * 40cm, Weight: 10.2kg