Air speed
Hot wire anemometer
Portable hot wire anemometer for measuring mean air speed (va). ESV108-309 measure the air speed only, using one sample every 100 ms and update output every one sec.
The ESV307 model is similar to the ESV108 model, but its output is serial to be connected directly to the RS232-2 port of the E / M-Log data loggers.
Air speed
Hot wire anemometer
Portable hot wire anemometer for measuring mean air speed (va). ESV108-309 measure the air speed only, using one sample every 100 ms and update output every one sec.
The ESV307 model is similar to the ESV108 model, but its output is serial to be connected directly to the RS232-2 port of the E / M-Log data loggers.
Hot wire anemometer
Portable hot wire anemometer for measuring mean air speed (va). ESV108-309 measure the air speed only, using one sample every 100 ms and update output every one sec.
The ESV307 model is similar to the ESV108 model, but its output is serial to be connected directly to the RS232-2 port of the E / M-Log data loggers.
Hot wire anemometer
ESV308 calculates also turbolence intensity (TU) in compliance with ISO7726 using air speed measurement sampled every 100 ms, a rate allowing calculation of Average air speed (va), standard deviation and Turbulence index over 1 second. The reading is then updated every second with a running average over the previous 5 sec. These sensors can be used in indoor environments, ducts, ventilation outlets. It can be hand-held or it can be mounted on a tripod during longer measurements. When the support for the directional measurement is removed, this sensor has a good response to plane omnidirectional air flow which arrive on the hot wire from any directions within 300°.
Air speed
Highlights
- Replaceable head for easy repair of broken wire;
- Very low measurement threshold: 0,01 m/s;
- Because of the omnidirectional sensitivity, this sensor is very suitable in applications where the air flow is not directional as in Heat stress and Thermal comfort applications;
- Using air speed values, LSI LASTEM’s M/R-Log data loggers can calculate directly air flow (mass and volume) and number of air changes;
- Because of the fast response time, this sensor is very suitable for Turbolence Intensity (TU) measurements; LSI LASTEM M/R-Log data loggers can calculate directly TU and % of people dissatisfy by air draft as described in ISO7730 standard;
- Internal ISO17025 accredited calibration laboratory;
- Model codes: EXP126, ESV108.1, ESV108, ESV308.
Documents
Description
Hot wire anemometer
ESV308 calculates also turbolence intensity (TU) in compliance with ISO7726 using air speed measurement sampled every 100 ms, a rate allowing calculation of Average air speed (va), standard deviation and Turbulence index over 1 second. The reading is then updated every second with a running average over the previous 5 sec. These sensors can be used in indoor environments, ducts, ventilation outlets. It can be hand-held or it can be mounted on a tripod during longer measurements. When the support for the directional measurement is removed, this sensor has a good response to plane omnidirectional air flow which arrive on the hot wire from any directions within 300°.
Air speed
Highlights
- Replaceable head for easy repair of broken wire;
- Very low measurement threshold: 0,01 m/s;
- Because of the omnidirectional sensitivity, this sensor is very suitable in applications where the air flow is not directional as in Heat stress and Thermal comfort applications;
- Using air speed values, LSI LASTEM’s M/R-Log data loggers can calculate directly air flow (mass and volume) and number of air changes;
- Because of the fast response time, this sensor is very suitable for Turbolence Intensity (TU) measurements; LSI LASTEM M/R-Log data loggers can calculate directly TU and % of people dissatisfy by air draft as described in ISO7730 standard;
- Internal ISO17025 accredited calibration laboratory;
- Model codes: EXP126, ESV108.1, ESV108, ESV308.
Additional information
| Applications | IEQ and environmental comfort, Museums and archaeological sites, Stress and thermal comfort and related quantities portable |
|---|---|
| Grandezze |
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