WXT530 specifications - AWS810

WXT530 barometric pressure measurement performance
Property	Description/Value
Observation range	500–1100 hPa
Accuracy (for sensor element) at 600–1100 hPa	±0.5 hPa at 0 … +30 °C (+32 … +86 °F) ±1 hPa at −52 … +60 °C (−60 … +140 °F)
Output resolution	0.1 hPa / 10 Pa / 0.001 bar / 0.1 mmHg / 0.01 inHg
Units available	hPa, Pa, bar, mmHg, inHg

WXT530 air temperature measurement performance
Property	Description/Value
Observation range	−52 … +60 °C (−60 … +140 °F)
Accuracy (for sensor element) at +20 °C (+68 °F) ¹	±0.3 °C (±0.54 °F)
Output resolution	0.1 °C (0.1 °F)
Units available	°C, °F

WXT530 relative humidity measurement performance
Property	Description/Value
Observation range	0–100 %RH
Accuracy (for sensor element) ²	±3 %RH at 0–90 %RH ±5 %RH at 90–100 %RH
Output resolution	0.1 %RH
PTU measuring interval	1–3600 s (= 60 min), at 1 s steps

WXT530 precipitation measurement performance
Property ³	Description/Value
Collecting area	60 cm² (9.3 in²)
Rainfall ⁴
Output resolution	0.01 mm (0.001 in)
Field accuracy for daily accumulation ⁵	Better than 5 %, weather-dependent
Units available	mm, in
Duration	Counting each 10‑second increment whenever droplet detected
Duration output resolution	10 s
Intensity	Running 1‑minute average, 10 s steps
Intensity observation range	0–200 mm/h (0–7.87 in/h) (broader with reduced accuracy)
Intensity output resolution	0.1 mm/h (0.01 in/h)
Units available	mm/h, in/h
Hail ⁶
Output resolution	0.1 hits/cm² (1 hits/in²), 1 hit
Units available	hits/cm², hits/in², hits
Intensity output resolution	0.1 hits/cm²h (1 hits/in²h), 1 hit/h
Units available	hits/cm²h, hits/in²h, hits/h

WXT530 wind measurement performance
Property	Description/Value
Wind speed ⁷
Observation range	0–60 m/s (134 mph)
Reporting range	0–75 m/s (168 mph)
Response time	0.25 s
Available variables	Average, maximum, and minimum
Accuracy	±3 % at 10 m/s (22 mph)
Output resolution	0.1 m/s (km/h, mph, knots)
Units available	m/s, km/h, mph, knots
Wind direction ⁷
Azimuth	0–360°
Response time	0.25 s
Available variables	Average, maximum, and minimum
Accuracy	±3.0° at 10 m/s (22 mph)
Output resolution	1°
Averaging time	1–3600 s, sample rate 1, 2, or 4 Hz (configurable)

WXT530 inputs and outputs
Property	Description/Value
Operating voltage	6–24 V DC (−10 … +30 %)
Average power consumption	Minimum: 0.1 mA at 12 V DC (SDI‑12 standby) Typical: 3.5 mA at 12 V DC (typical measuring intervals) ⁸ Maximum: 15 mA at 6 V DC (constant measurement of all parameters)
Heating voltage	DC, AC, or full-wave rectified AC 12–24 V DC (−10 … +30 %) 12–17 V AC_rms (−10 … +30 %)
Typical heating current	12 V DC: 800 mA, 24 V DC: 400 mA 12 V AC_rms: 1.1 A 17 V AC_rms: 800 mA
Digital outputs	SDI‑12, RS‑232, RS‑485, RS‑422
Communication protocols	SDI‑12 v1.3, Modbus RTU, ASCII automatic and polled, NMEA 0183 v3.0 with query option
Self-diagnostic	Separate supervisor message, unit/status fields to validate measurement stability
Startup	Automatic, < 5 seconds from power on to the first valid output

WXT530 operating environment
Property	Description/Value
Operating environment	Outdoor use
Operating temperature	−52 … +60 °C (−60 … +140 °F)
Storage temperature	−60 … +70 °C (−76 … +158 °F)
Operating humidity	0–100 %RH
Operating pressure	500–1100 hPa
Wind ⁹	0–60 m/s (0–134 mph)
IP rating	Without mounting kit: IP65: Dust-tight. Protected from water jets from any direction. With mounting kit: IP66: Dust-tight. Protected from powerful water jets from any direction.

WXT530 mechanical specifications
Property	Description/Value
Weight
WXT534, WXT535, WXT536	0.7 kg (1.54 lb)
WXT531, WXT532, WXT533	0.5 kg (1.1 lb)
Materials
Radiation shield, top, and bottom parts	Polycarbonate +20 % fiberglass
Precipitation sensor plate	Stainless steel (AISI 316)

WXT530 compliance
Property	Description/Value
EU directives and regulations	EMC Directive (2014/30/EU) RoHS Directive (2011/65/EU) as amended by 2015/863
Electromagnetic compatibility (EMC)	EN 61326‑1, industrial environment CISPR 32 / EN 55032, Class B
Environmental	IEC 60068‑2‑1, 2, 6, 14, 30, 31, 78 IEC 60529, VDA 621‑415
Maritime	IEC 60945 (Exposed) DNV GL Type Examination Certificate No. TAA00000VF
Compliance marks	CE, RCM, RoHS, China RoHS, UKCA

CAUTION Any temporary object (such as snow, ice, or a bird) that blocks the observation path between the ultrasonic transducer heads may lead to inaccurate or incorrect measurements.

Extreme operating conditions can alter the performance temporarily.

CAUTION Make sure that you power up the sensor after installation. Storing the sensor outdoors without a proper package or not powering up after installation can affect the expected lifespan of the sensor.

Select a heated sensor model if you operate the sensor in humid conditions.

Select a heated sensor model if you operate the sensor in temperatures below 0 °C (+32 °F).

¹ A naturally aspirated radiation shield is applied which can affect readings in calm wind.

² A naturally aspirated radiation shield is applied which can affect readings in calm wind.

³ Precipitation measurement is performed for liquid precipitation.

⁴ Cumulative accumulation after the latest automatic or manual reset.

⁵ Due to the nature of the phenomenon, deviations caused by spatial variations may exist in precipitation readings, especially in short time scale. The accuracy specification does not include possible wind-induced error.

⁶ Cumulative number of hits against collecting surface.

⁷ NTP (normal temperature and pressure) condition applied for wind tunnel testing.

⁸ Wind 10‑second average with 2‑minute interval at 4 Hz sampling rate, RS‑232 19200 bps with jumper wires, PTU 10‑second interval, Pt1000, level, tipping bucket, and solar radiation 5‑second interval.

⁹ Due to the measurement frequency used in the sonic transducers, RF interference in the 200–400 kHz range can disturb wind measurement.

WXT530 specifications - AWS810 - WXT530

AWS810 System Description