 Models 8384, 8385, 8386
TSI's VELOCICALC Plus Meters simultaneously measure and data log several ventilation parameters using a single probe with multiple sensors. The Model 8384 measures velocity, temperature, and calculates volumetric flowrate. The Model 8385 adds a pressure measurement for static pressure and Pitot tube readings. The Model 8386 adds a humidity measurement as well as performs dew point, wet bulb temperature, and heat flow calculations.
Features and Benefits
Data Logging Capabilities
Model Comparison
Downloads
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Features and Benefits
- Wide velocity range of 0 to 50 m/s
- Flowrate feature makes simple calculations of volumetric flowrate when the user inputs the duct shape and size, K factor or horn size
- Velocity measurements are made from the thermal sensor or a Pitot tube
- Automatic conversion between actual and standard velocity readings
- Direct calculation of dew point and wet bulb temperature--no psychrometric chart needed (Model 8386 only)
- Heat flow function calculates heat transferred after a heating or cooling element (Model 8386 only)
- Stable digital display when measuring fluctuating flows
- Back-lit display is easy to read in poor lighting conditions
- 101.6 cm telescoping probe with etched length marks to make duct traverse measurements easier
- Optional articulating probe available
- Optional portable printer provides hard copy documentation of your measurements
Data Logging Capabilities
 Data logging ability allows user to log 1394 samples with a time and date stamp
- Simultaneously records all parameters available in each model
- Single point and continuous data logging modes to fit your application
- Data can be reviewed on-screen, printed or downloaded to a computer spreadsheet program
- TSI downloading software permits easy transfer of data to a computer
- Statistics function displays average, maximum and minimum values, and the number of recorded samples
Model Comparison
All Models are available with either a straight or articulating probe.
*Where 83XX(A) is listed, the specifications apply to both the 83XX (straight probe) and 83XX(A) (articulating probe) models.
1 Temperature compensated over an air temperature range of 5 to 65°C (40 to 150°F).
2 The accuracy statement of ±3.0% of reading or ±0.015 m/s (±3 ft/min), whichever is greater, begins at 0.15 m/s through 50 m/s.
3 Pressure velocity measurements are not recommended below 5.1 m/s and are best suited to velocities over 10.2 m/s. Range can vary depending on barometric pressure.
4 Accuracy is a function of converting pressure to velocity. Conversion accuracy improves when actual pressure values increase.
5 Overpressure range = 520 mmHg, 69 kPa (275 in. H2O).
6 Accuracy with instrument case at 25°C (77°F), add uncertainty of 0.03%/°C (0.02%/°F) for change in instrument temperature.
6 Accuracy with instrument case at 25°C (77°F), add uncertainty of 0.03°C/°C (0.05°F/°F) for change in instrument temperature.
7 Accuracy with probe at 25°C (77°F). Add uncertainty of 0.02%RH/°C (0.01%RH/°F) for change in probe temperature. Includes 1% hysteresis.
Specifications subject to change without notice.
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