UTAI Indoor Temperature and Humidity Thermohygrometer
- Manufacturer: Nesa
- Category: Meteorology – Climatology, SENSORS, Humidity Sensors, Temperature sensors, Temperature sensors for air conditioning, Temperature - Humidity
The NESA UTAI is a combined indoor air temperature and relative humidity thermohygrometer with a 1/3DIN Pt100 platinum element (-40 ÷ +80 °C) and a thin-film capacitive transducer (0 ÷ 100 %Rh), housed in an inert and antistatic plastic cylindrical body (Ø 26 x 220 mm).
It offers a resolution of 0.015 °C in temperature and 0.1% in relative humidity, calibrated by comparison with a certified SIT standard instrument and delivered with a calibration report, and is manufactured in three output versions: UTAI-N (T: 4-wire Pt100; RH: 0÷1Vdc), UTAI-B (T: 4÷20mA; RH: 4÷20mA) and UTAI-C (RS485 / ModBus).
Key points
- Platinum resistance thermometer 1/3DIN Pt100 (±0.1 °C @ 0 °C; resolution 0.015 °C) and thin-film capacitive element (±2 % fs; resolution 0.1%)
- Measurement range of -40 ÷ +80 °C in temperature and 0 ÷ 100 %Rh in relative humidity
- Cylindrical body made of inert and antistatic plastic material, Ø 26 x 220 mm and weighing less than 100 g
- Available outputs: Pt100 + 0÷1Vdc (UTAI-N), 4÷20mA for T and RH (UTAI-B) and RS485 / ModBus (UTAI-C)
- 10÷28Vdc power supply and consumption less than 0.5 W (UTAI-B)
Technical Frequently Asked Questions
What output signals does the UTAI indoor thermo-hygrometer offer?
It is supplied in three versions: UTAI-N (Pt100 1/3DIN 4-wire temperature and 0÷1Vdc humidity), UTAI-B (two 4÷20mA outputs for temperature and humidity) and UTAI-C (RS485 / ModBus digital output).
How do I order the UTAI thermo-hygrometer?
The order code indicates the sensor (UTAI), the output (N, B, or C), the cable length (05 = CS05 of 5 m, 10 = CS10 of 10 m, xx = CSxx, length in meters to be specified), and the wall-mounting bracket for stylus sensors (SUPP). The model references are UTAI-N, UTAI-B, and UTAI-C.
What are the operating conditions of the NESA UTAI?
It operates between -40 and +80 °C with a 10÷28Vdc power supply, consumes less than 0.5 W (in the UTAI-B version) and weighs less than 100 g.
Properties
| Feature | Specification |
|---|---|
| Measurement and sensitive element | |
| Measured magnitudes | Indoor temperature (T) and relative humidity (RH) |
| Temperature measurement range | -40 to +80 °C |
| Humidity measurement range | 0 ÷ 100 %Rh |
| Temperature-sensitive element | Platinum resistance thermometer 1/3DIN Pt100 (100 Ω @ 0 °C) |
| Moisture-sensitive element | Thin-film capacitive |
| Precision | Temperature: DIN 43760 1/3DIN (±0.1 °C @ 0 °C) · Humidity: ±2 % fs. |
| Resolution | Temperature: 0.015 °C · Humidity: 0.1% |
| Response time | Temperature: < 60 s · Humidity: < 100 s (10÷80 %RH) |
| Output signals and connections | |
| Version N (UTAI-N) | Temperature: Pt100 1/3DIN 4-wire · Humidity: 0÷1Vdc |
| Version B (UTAI-B) | Temperature: 4÷20mA · Humidity: 4÷20mA |
| Version C (UTAI-C) | Temperature and humidity: RS485 / ModBus |
| Power supply, environment, and mechanical data | |
| Feeding | 10÷28Vdc |
| Consumption | < 0.5 W (UTAI-B) |
| Operating conditions | -40 to +80 °C |
| Construction material | Inert and antistatic plastic material |
| Dimensions | Ø 26 mm; length 220 mm (dimensions for version C may vary) |
| Weight | < 100 g |
| Reference | Configuration |
|---|---|
| UTAI-BUTAIB | Model: UTAI · Temperature (T) Output: 4÷20mA · Humidity (RH) Output: 4÷20mA |
| UTAI-CUTAI | Model: UTAI · Temperature (T) Output: RS485 / ModBus · Humidity (RH) Output: RS485 / ModBus |
| UTAI-NUTAIN | Model: UTAI · Temperature (T) Output: Pt100 1/3DIN 4-wire · Humidity (RH) Output: 0÷1Vdc |
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