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Home > Transmitters > Barometric Transmitters > HD403TS Air Speed Transmitter

HD403TS and HD4V3TS Active Hotwire Air speed transmitters
The HD403TS series of hotwire air speed transmitters are used for measuring and controlling air speed
in ventilation ducts, clean rooms, extractor fans, as well as monitoring air quality (IAQ), etc.

Airspeed Humidity Transmitter - Velocity Transmitter

Model  Description 
HD403TS  Active Hotwire Air speed transmitters

These transmitters are equipped with a hotwire sensor, in the directional or omnidirectional version.
The HD403TS series of transmitters have a 4 - 20mA output, while the HD4V3TS series have a
0 - 10Vdc output.
Two measuring ranges are available: 0.05 - 40m/s for S1 and S3 models with directional probe and
0.05 - 5.00m/s for S2 and S4 models with omnidirectional probe.
The transmitters are factory calibrated and no further adjustments are required.

Air speed transmitter specifications
Air speed
Standard measuring range 
0.05…5.00m/s  …S2 and …S4 models 
0.05…40.0m/s  …S1 and …S3 models 
Measurement accuracy  ±(0.03m/s+2%f.s.)   
Response time (integration)
selected by jumper 
0.2s
2.0s 
Fast
Slow 
Operating temperature
electronics
probe 

0…+60°C
0…+80°C 
  
Compensation temperature  0…+80°C   
Storage temperature  -10…+70°C   
Electronics protection class  IP67   
Sensor working conditions  Clear air, RH<90%   
Case dimensions  58x65x35  Without probe 
Standard cable length  2m   

ORDERING CODES

HD403TS1: Active hotwire air speed transmitter with 4 - 20mA output. Measuring range: 0.05 - 40m/s. Directional probe Φ=8mm, cable L=2m.
HD4V3TS1: Active hotwire air speed transmitter with 0 - 10Vdc output. Measuring range: 0.05 - 40m/s. Directional probe Φ=8mm, cable L=2m.
HD403TS2: Active hotwire air speed transmitter with 4 - 20mA output. Measuring range: 0.05 - 5.00m/s. Omnidirectional probe Φ=8mm, cable L=2m.
HD4V3TS2: Active hotwire air speed transmitter with 0 - 10Vdc output. Measuring range: 0.05 - 5.00m/s. Omnidirectional probe Φ=8mm, cable L=2m.
HD403TS3: Active hotwire air speed transmitter with 4 - 20mA output. Measuring range: 0.05 - 40m/s.
Flexible directional probe, Φ=8mm, cable L=2m.
HD4V3TS3: Active hotwire air speed transmitter with 0 - 10Vdc output. Measuring range: 0.05 - 40m/s.
Flexible directional probe, Φ=8mm, cable L=2m.
HD403TS4: Active hotwire air speed transmitter with 4 - 20mA output. Measuring range: 0.05 - 5.00m/s. Omnidirectional probe with wired protective cover Φ=80mm. Equipped with tripod.
HD4V3TS4: Active hotwire air speed transmitter with 0 - 10Vdc output. Measuring range: 0.05 - 5.00m/s. Omnidirectional probe with wired protective cover Φ=80mm. Equipped with tripod.