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ACTIVE AIR SPEED TEMPERATURE HUMIDITY TRANSMITTERS
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HD2903T
- HD29V3T
series Air speed transmitters
HD2937T
- HD29V37T
series Temperature, Air speed transmitters
HD29371T
- HD29V371T
series Temperature, Relative Humidity and Air
speed transmitters
The HD29 series of transmitters
are used for
controlling air speed for conditioning and ventilation applications
(HVAC/BEMS) in the following sectors: pharmacy, museums, clean rooms,
ventilation ducts, crowded places, canteens, auditoria, gyms or
high-density farms, as well as industrial and civil sectors.
The sensors in combination with an accurate electronics guarantee
precise and reliable measurements in the course of time.
The thin fi lm sensor for air speed, the AISI304 probe sheath, the 20μ
metal grid filter for Relative Humidity enable their usage even for
hostile applications.
The probes are available in three different
lengths.
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| Our
Price: |
Contact us for
pricing |
| Phone:
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253-927-6186
866-318-6186 |
| Fax:
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253-927-6189 |
| email:
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sales@hotektech.com |
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There are two
possible installations:
in the TO version, the horizontal probe is joined
to the electronics enclosure while in the
TC version the probe is connected to the
electronics through a cable.
In the TO version, the duct probe is fixed to the
electronics enclosure and it is available in three
different lengths.
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To fix the probe to the duct,
you can use, for example,
the HD9008.31 flange, a 3/8 universal biconical connection or a PG16 metal
cable gland (Ψ10
14mm).
In the TC version, the probe together with the sensors is equipped with a
cable which can be 2, 5 or 10 meters long.
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| Technical Specification |
Notes |
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Air speed Measuring range
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0.05
1m/s
0.05
2m/s
0.05
10m/s
0.05
20m/s |
The measuring range can be
selected by dip-switch. |
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Air speed Accuracy
range 0
1m/s
range 0
2m/s
range 0
10m/s
range 0
20m/s |
±(0.04m/s+2% of measurement)
±(0.04m/s+2% of measurement)
±(0.2m/s+3% of measurement)
±(0.2m/s+3% of measurement) |
at 50%RH and 1013hPa |
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Temperature Measuring range |
-10
+60°C |
HD2937, HD29V37, HD29371
and HD29V371 models |
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Temperature Accuracy |
±0.3°C |
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Relative Humidity Measuring range |
5
98%RH |
HD29371 and HD29V371
models
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Relative Humidity Accuracy |
±2% (5..90%RH),
±2.5% remaining range |
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Relative Humidity Output Range |
0
100%RH |
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Output
(according to the models) |
4
20mA
0
10Vdc |
RL < 500Ω
RL > 10kΩ |
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Power supply |
16
40Vdc or 12
24Vac±10% |
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Response time
(selected by jumper) |
0.2s
2.0s |
Fast
Slow |
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Operating temperature
electronics probe |
0
+60°C
-30
+100°C |
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Compensation temperature |
0
+80°C |
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Storage temperature |
-10
+70°C |
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Electronics protection class |
IP67 |
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Sensor working conditions |
Clean air, RH<90% |
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Case dimensions |
80x84x44 |
Without probe |
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| Model |
Output |
Measured Parameters |
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4
20mA |
0
10Vdc |
Air speed |
Temperature |
Relative Humidity |
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HD2903T... |
* |
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* |
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HD29V3T... |
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* |
* |
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HD2937T... |
* |
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* |
* |
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HD29V37T... |
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* |
* |
* |
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HD29371T... |
* |
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* |
* |
* |
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HD29V371T... |
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* |
* |
* |
* |
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