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This air flow meter is a multipurpose electronic air balancing instrument designed for efficiently taking direct air volume readings from air vents. The advanced kit includes everything in the standard kit, such as a standard 2' x 2' (610 x 610 mm) hood with flow straighteners,4 x additional foldable hoods. The measuring range is from 35 to 4250 m³/h with a resolution of 1 m³/h.
This air flow meter is a multipurpose electronic air balancing instrument designed for efficiently taking direct air volume readings from air vents. The advanced kit includes everything in the standard kit, such as a standard 2' x 2' (610 x 610 mm) hood with flow straighteners,4 x additional foldable hoods. The measuring range is from 35 to 4250 m³/h with a resolution of 1 m³/h.
The Sauermann DBM 620C Air Flow Meter is a multipurpose electronic air balancing instrument primarily used for efficiently taking direct air volume readings from air vents. The Sauermann DBM 620C Advanced Kit includes everything in the DBM 620 Standard Kit, including the standard 2 x 2' (610 x 610 mm) hood with flow straighteners, plus 4 additional hoods. All hoods have a foldable frame and can be used on any type of grid or diffuser in air supply or exhaust. The Sauermann balometer measuring range is from 35 to 4250 m3/h with a 1 m3/h resolution.
Air flow is a critical measurement for maintaining indoor air quality in commercial and public buildings, and the air change rate (ACR) is of critical importance. The DBM 620C is designed to accurately and reliably measure the ACR using the accompanying mobile app, ensuring the building's HVAC/R system works as effectively and efficiently as possible. Roughly replacing the air in a room by bringing in a flow of filtered air from outside is the most effective way to reduce concentrations of pollutants such as volatile organic compounds (VOC), bacteria, viruses, and dust. Therefore, measuring the ACR is especially important in ensuring that the air inside a confined space is clean and healthy. An air flow meter is the most versatile and effective portable instrument for measuring air flow.
The removable measuring unit of the Sauermann DBM 620C air capture hood can be used as a micromanometer and can be attached to a Pitot tube to measure airflow velocity in an air duct or by connecting two silicone tubes to check for dirty filters. The measurement grid, attached to the base, allows the measurement through 24 points all over the surface of the grid. Measurement is performed using a differential pressure sensor adjusted in atmospheric pressure and temperature, compensated in temperature.
The Sauermann DMB 620C balometer allows control and balancing of airflow in air conditioning systems. Hoods are airtight and have a transparent viewing window that allows the user to see through to the vent to ensure the hood is in the proper position. In addition, the DBM 620C is compatible with all types of air vents - incoming and outgoing.
Features
Applications
| Airflow (calculated) | Accuracy: ±3% of the measurement Measuring range: 35 to 4250 m³/h, 10 to 1181 L/s, 21 to 2501 CFM Resolution: 1 m³/h, 1 L/s, 1 CFM |
| Air Velocity (calculated) | Accuracy: ±3% of the measurement Measuring range: 0.2 to 10 m/s, 39 to 1969 ft/min Resolution: 0.01 m/s (up to 3 m/s), 0.1 m/s (above), 1 ft/min |
| Temperature (ntc) | Accuracy: ±0.2 °C (±0.36 °F) Measuring range: -20 to 70 °C (-4 to 158 °F) Resolution: 0.01 °C, 0.01 °F |
| Relative Humidity | Accuracy: ±1.5% RH (repeatability, linearity) Measuring range: 0 to 100% RH Hysteresis: 0.8% RH at 25 °C Time drift: <0.5% RH per year (normal use) Resolution: 0.01% RH |
| Atmospheric Pressure | Accuracy: ±3 mbar Measuring range: 700 to 1100 mbar Resolution: 1 mbar |
| Pressure | Accuracy: ±0.2% of reading Measuring range: -2500 to +2500 Pa (-10 to 10 inWg) Resolution: 0.001 to 0.1 Pa, 0.001 inWg |
| Display | On smartphone or tablet(1) Integrated support for smartphone or tablet Adjustable integrated support Smartphone or tablet max. Width: 6.2’’ |
| Connectors/pneumatic | ABS connectors, Ø 0.28 x 0.16" (7 x 4 mm) |
| Maximum Operating Pressure | 500 mbar |
| Storage Capacity | Standard size of a measurement dataset report: 1 Mo |
| Housing | Shock-proof, made of ABS |
| Protection | IP40 |
| Keypad | 1 key on the housing |
| Power Supply | 4 x alkaline batteries LR6 AA 1.5 V |
| Battery Life | Up to 30 hours |
| Wireless Connection | Class 1, BLE 4.2 Range: 2.4 GHz Range up to 98' (30 m) - Depending on smartphone and tablet wireless connection radio strength Minimum required versions: Android 7.1, iOS 12.4, BLE 4.0 |
| Device Dimensions | Folded: 1.56 x 1.49 x 0.84' (475 x 455 x 255 mm) Mounted: 2 x 2 x 3.22' (610 x 610 x 980 mm) |
| Environmental Conditions Of Use | Air, non-corrosive and combustible gases Temperature: from -23 to 122 °F (5 to +50 °C), in dry air and non-condensing conditions Hygrometry: in non-condensing conditions (< 6561’ (80% RH) Maximum altitude: 2000 m) |
| Storage Temperature | From -4 to 140 °F (20 to +60 °C) |
| Auto-shut-off | Adjustable from 0 to 60 minutes |
| Weight | Base/Measuring unit/Hood/Frame: 6.4 lbs (2.9 kg) Standard DBM 14.1 lbs (620 content kit: 6.4 kg) |
| Languages | German, Spanish, Italian, Dutch, Portuguese, Hungarian, Polish, Romanian, Russian, Slovak, Finnish, Danish, Norwegian, Swedish, Chinese, Korean, Japanese |
| European Directives | 2011/65/EU RoHS II 2012/19/EU WEEE 2014/53/EU RED |
| Airflow (calculated) | Accuracy: ±3% of the measurement Measuring range: 35 to 4250 m³/h, 10 to 1181 L/s, 21 to 2501 CFM Resolution: 1 m³/h, 1 L/s, 1 CFM |
| Air Velocity (calculated) | Accuracy: ±3% of the measurement Measuring range: 0.2 to 10 m/s, 39 to 1969 ft/min Resolution: 0.01 m/s (up to 3 m/s), 0.1 m/s (above), 1 ft/min |
| Temperature (ntc) | Accuracy: ±0.2 °C (±0.36 °F) Measuring range: -20 to 70 °C (-4 to 158 °F) Resolution: 0.01 °C, 0.01 °F |
| Relative Humidity | Accuracy: ±1.5% RH (repeatability, linearity) Measuring range: 0 to 100% RH Hysteresis: 0.8% RH at 25 °C Time drift: <0.5% RH per year (normal use) Resolution: 0.01% RH |
| Atmospheric Pressure | Accuracy: ±3 mbar Measuring range: 700 to 1100 mbar Resolution: 1 mbar |
| Pressure | Accuracy: ±0.2% of reading Measuring range: -2500 to +2500 Pa (-10 to 10 inWg) Resolution: 0.001 to 0.1 Pa, 0.001 inWg |
| Display | On smartphone or tablet(1) Integrated support for smartphone or tablet Adjustable integrated support Smartphone or tablet max. Width: 6.2’’ |
| Connectors/pneumatic | ABS connectors, Ø 0.28 x 0.16" (7 x 4 mm) |
| Maximum Operating Pressure | 500 mbar |
| Storage Capacity | Standard size of a measurement dataset report: 1 Mo |
| Housing | Shock-proof, made of ABS |
| Protection | IP40 |
| Keypad | 1 key on the housing |
| Power Supply | 4 x alkaline batteries LR6 AA 1.5 V |
| Battery Life | Up to 30 hours |
| Wireless Connection | Class 1, BLE 4.2 Range: 2.4 GHz Range up to 98' (30 m) - Depending on smartphone and tablet wireless connection radio strength Minimum required versions: Android 7.1, iOS 12.4, BLE 4.0 |
| Device Dimensions | Folded: 1.56 x 1.49 x 0.84' (475 x 455 x 255 mm) Mounted: 2 x 2 x 3.22' (610 x 610 x 980 mm) |
| Environmental Conditions Of Use | Air, non-corrosive and combustible gases Temperature: from -23 to 122 °F (5 to +50 °C), in dry air and non-condensing conditions Hygrometry: in non-condensing conditions (< 6561’ (80% RH) Maximum altitude: 2000 m) |
| Storage Temperature | From -4 to 140 °F (20 to +60 °C) |
| Auto-shut-off | Adjustable from 0 to 60 minutes |
| Weight | Base/Measuring unit/Hood/Frame: 6.4 lbs (2.9 kg) Standard DBM 14.1 lbs (620 content kit: 6.4 kg) |
| Languages | German, Spanish, Italian, Dutch, Portuguese, Hungarian, Polish, Romanian, Russian, Slovak, Finnish, Danish, Norwegian, Swedish, Chinese, Korean, Japanese |
| European Directives | 2011/65/EU RoHS II 2012/19/EU WEEE 2014/53/EU RED |
