Senseca
HD103T.0 Air Speed Transmitter
Overview
The HD103T.0 is an active air speed transmitter that measures air speed with an omnidirectional hotwire probe. It also measures temperature, and is designed for clean air monitoring.
It has three configurable analog outputs: 4…20 mA and 0…20 mA current outputs and a 0…10 Vdc voltage output (0…1 Vdc or 0…5 Vdc on request). The output type is selected with jumpers inside the instrument. Each instrument is factory calibrated together with its own probe.
Key Features
- Omnidirectional hotwire probe for air speed
- Air speed range 0.1…5 m/s, temperature range -10…+80 °C
- Configurable analog outputs for both air speed and temperature: 4…20 mA, 0…20 mA, 0…10 Vdc
- Output type selected by jumpers on the board
- Factory calibrated, with no further adjustment required
- Electronics protection class IP67
- 5 m probe cable
Specifications
| Air speed measuring range | 0.1…5 m/s |
| Air speed accuracy | ±0.1 m/s (0.1…0.99 m/s); ±0.4 m/s (1…5 m/s), at 50 %RH and 1013 hPa |
| Temperature measuring range | -10…+80 °C |
| Temperature accuracy | ±0.3 °C (0…70 °C); ±0.4 °C (remaining range) |
| Output (air speed and temperature) | 4…20 mA, 0…20 mA, 0…10 Vdc (0…5 Vdc and 0…1 Vdc on request) |
| Load resistance | RL < 500 Ω for current outputs; RL > 100 kΩ for voltage outputs |
| Power supply | 24 Vac ±10%, 3 VA, 50…60 Hz (110 Vac or 230 Vac on request) |
| Operating temperature, electronics | -5…+50 °C, 5…75 %RH |
| Operating temperature, probe | -10…+80 °C |
| Compensation temperature | 0…+80 °C |
| Storage temperature | -10…+80 °C |
| Electronics protection class | IP67 |
| Sensor working conditions | Clean air, RH < 80% |
| Case dimensions | 120 x 80 x 55 mm (without probe) |
| Probe cable length | L = 5 m |
Installation notes
- The sensor at the top of the probe is very delicate. Keep the protection on during transport and fit the protective cover during installation.
- Use the probe with clean air only and humidity below 80%.
- Each instrument is calibrated with its own probe. Do not mix up probes and instruments, as the calibration would have to be repeated.
Ordering code
HD103T.0: active air speed and temperature transmitter. Omnidirectional probe with wired protective cover Ø 80 mm, connected to the electronics through a 5 m cable. Air speed range 0.1…5 m/s. Power supply 24 Vac (115 and 230 Vac on request).
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