Hot Wire Anemometer
Provides Precise Measurements of Air Flow, Velocity and Temperature.
SKU
HWANEMOMETER
TSI's VELOCICALC® Air Velocity Meters are easy to use from the first time you pick them up. The Models 8345 and 8346 measure velocity and temperature, calculate flow rate, perform multi-value averaging, and determine minimum and maximum readings. The Models 8347 and 8347(A) add a humidity measurement and perform dew point and wet bulb temperature calculations.
For more information on the Hot Wire Anemometer, contact your local Air-Met office.
- Extended velocity range of 0 to 6,000 ft/min
- Temperature range of 0 to 140°F or more
- Humidity range of 0 to 95% rh (Models 8347 and 8347(A) only)
- Easy to read digital display
- Variable time constant modes available for a steady display when measuring fluctuating flows
- Telescoping probes with etched length marks to make duct traverse measurements easier
- Sampling function allows for easy recording of multiple measuring points
- Direct calculation of dew point and wet bulb temperature–no psychrometric chart needed (Models 8347 and 8347(A) only)
- Statistics function can display average, maximum and minimum values, and the number of recorded samples
- Flow rate feature allows for simple and quick calculations of volumetric flow rate when the user inputs the duct shape and size
| Velocity: | |
| Range: | 0 to 6000 ft/min (0 to 30 m/s) |
| Accuracy1&2: | 3.0% of reading or ±3 ft/min (±0.015 m/s), whichever is greater |
| Temperature: | |
| Range (8345/46): | 0 to 200 ?F (-17.8 to 93.3 ?C) |
| Range (8347/47A): | 14 to 140 ?F (-10 to 60 ?C) |
| Resolution: | 0.1 ?F (0.1?C) |
| Accuracy3: | ±0.5 ?F (±0.3 ?C) |
| Instrument Temperature Range: | |
| Operating (Electronics): | 40 to 113 ?F (5 to 45 ?C) |
| Storage: | -22 to 194 ?F (-30 to 90 ?C) |
| Volumetric Flowrate: | |
| Range4: | 0.1 to 195,000 l/s, 0.0424 to 702,000 m3/hr, 0.2 to 2,700,000 ft3/min |
| Relative Humidity (MODELS 8347/8347A): | |
| Range: | 0 to 95% RH |
| Accuracy5: | 5: ±3% RH |
| Resolution: | 0.1% RH |
| Wet Bulb Temperature (MODELS 8347/8347A): | |
| Range: | 40 to 140°F (5 to 60°C) |
| Resolution: | 0.1°F (0.1°C) |
| Dew Point (MODEL 8347/8347A): | |
| Range: | 5 to 120°F (-15 to 49°C) |
| Resolution: | 0.1°F (0.1°C) |
| Duct Size: | |
| Range: | 1 to 100 inches in increments of 0.5 inches, 100 to 255 inches in increments of 1 inch (1 to 100 cm in increments of 0.5 cm, 100 to 255 cm in increments of 1 cm) |
| Averaging Capability: | |
| Range: | Up to 255 values of each velocity (or flowrate), temperature, humidity, dew point temperature, and wet bulb temperature |
| Time Constant: | |
| Range: | Adjustable from 1 to 20 seconds |
| Response Time: | |
| To Velocity: | 200 msec |
| To Temperature: | 8345/46: 8 seconds |
| 8347/47A: 34 seconds | |
| External Meter Dimensions: | |
| Size Measurements: | 3.9 in. x 6.6 in. x 1.5 in. (10 cm x 16.8 cm x 3.8 cm) |
| Meter Probe Dimensions: | |
| Probe Length (8345): | 37 in. (94 cm) telescopic |
| Probe Length (8346): | 37 in. (94 cm) telescopic articulating |
| Probe Length (8347): | 40 in. (102 cm) telescopic |
| Probe Length (8347A): | 40 in. (102 cm) telescopic articulating |
| Meter Weight Dimensions: | |
| Weight (with batteries): | 1.1 lbs (0.5 kg) |
| Meter Display Dimensions: | |
| Display: | 4-digit LCD, 0.6 in. (15 mm) digit height |
| Power Requirements: | Four AA-size batteries (included) or AC adapter (optional) |
| Printer Interface: | Type Serial |
| Baud Rate 1200 | |
1 Temperature compensated over an air temperature range of 40 to 150°F (5 to 65°C).
2 The accuracy statement of 3.0% of reading or ±3 ft/min (±0.015 m/s), applies to 30 ft/min
through 6,000 ft/min.
3 Accuracy with instrument case at 77°F (25°C), add uncertainty of 0.03°C/°C
(0.05°F/°F) for change in instrument temperature.
4 Actual range is a function of maximum velocity and duct size.
5 Accuracy with probe at 77°F (25°C). Add uncertainty of 0.1% rh/°F (0.2% rh/°C)
for change in probe temperature. Includes 1% hysteresis.
Specifications are subject to change without notice.
- HVAC Industry
- Excellent for measurements in turbulent flows
- Measurements in restricted spaces
- Fume hood face velocity tests
- Clean room studies
- Wind tunnel work
- Filter face velocity measurements
- Indoor air quality tests
