Capable of measuring an array of environmental parameters, the TSI Airflow TA440 Air Velocity Meter is a multifunctional airflow meter. It can measure air velocity and temperature simultaneously, as well as humidity, wet bulb, and dewpoint temperature. The TSI Airflow TA440 Air Velocity Meter also calculates volumetric flow and actual/ standard velocity. Data can be logged to the TSI Airflow TA440 Air Velocity Meter’s memory (capacity for 12 700+ readings and 100 test IDs) and may be downloaded to a PC using the supplied LogDat2™ Software. Three measurements can be displayed simultaneously on the TSI Airflow TA440 Air Velocity Meter’s large, easy-to-read display.
There are two versions of the TSI Airflow TA440 Air Velocity Meter available: one with a straight probe and one with an articulated probe, both available with accredited calibration options.
Applications | HVAC system performance |
Commissioning | |
Plant maintenance | |
Critical environment certification | |
Duct traverses |
TA410 |
TA430 TA430-A |
TA440 TA440-A |
|
Velocity range 0 to 20.00 m/s (0 to 4000 ft/min) |
✔ | ✖ | ✖ |
Velocity range 0 to 30.00 m/s (0 to 6000 ft/min) |
✖ | ✔ | ✔ |
Temperature | ✔ | ✔ | ✔ |
Flow | ✖ | ✔ | ✔ |
Humidity, wet bulb, dew point |
✖ | ✖ | ✔ |
Probe | Straight | Straight or -A articulated |
Straight or -A articulated |
Variable time constant |
✖ | ✔ | ✔ |
Manual data logging |
✖ | ✔ | ✔ |
Autosave data logging |
✖ | ✖ | ✔ |
Statistics | ✖ | ✔ | ✔ |
Review data | ✖ | ✔ | ✔ |
LogDat2 downloading software |
✖ | ✔ | ✔ |
Free Certificate of Calibration |
✔ | ✔ | ✔ |
Velocity | |
Range | 0 to 30 m/s (0 to 6,000 ft/min) |
Accuracy | ±3% of reading or ±0.015 m/s (±3 ft/min), whichever is greater |
Resolution | 0.01 m/s (1 ft/min) |
Duct Size | |
Dimensions | 1 to 635 cm in increments of 0.1 cm (1 to 250 inches in increments of 0.1 in.) |
Volumetric Flow Rate | |
Range | Actual range is a function of velocity and duct size |
Temperature | |
Range | -18 to 60°C (0 to 140°F) |
Accuracy | ±0.3°C (±0.5°F) |
Resolution | 0.1°C (0.1°F) |
Relative Humidity | |
Range | 5 to 95% RH |
Accuracy4 | ±3% RH |
Resolution | 0.1% RH |
Wet Bulb Temperature | |
Range | 5 to 60°C (40 to 140°F) |
Resolution | 0.1°C (0.1°F) |
Dew Point | |
Range | -15 to 49°C (5 to 120°F) |
Resolution | 0.1°C (0.1°F |
Instrument Temperature Range | |
Operating (Electronics) | 5 to 45°C (40 to 113°F) |
Operating (Probe) | -10 to 60°C (14 to 140°F) |
Storage | -20 to 60°C (-4 to 140°F) |
Data Storage Capabilities | |
Range | 12,700+ samples and 100 test IDs |
Logging Interval | 1 second to 1 hour |
Time Constant | User-selectable |
External Meter Dimensions | 8.4 cm x 17.8 cm x 4.4 cm (3.3 in. x 7.0 in. x 1.8 in.) |
Meter Weight with Batteries | 0.27 kg (0.6 lbs.) |
Meter Probe Dimensions | |
Probe Length | 101.6 cm (40 in.) |
Probe Diameter of Tip | 7.0 mm (0.28 in.) |
Probe Diameter of Base | 13.0 mm (0.51 in.) |
Articulating Probe Dimensions | |
Articulating Section Length | 19.7 cm (7.8 in.) |
Diameter of Articulating Knuckle | 9.5 mm (0.38 in.) |
Power Requirements | Four AA-size batteries or AC adapter |