WXT530 specifications - BWS500

BWS500 Technical Specification
Document code
M212450EN
Revision
G
Language
English
Product
BWS500
Document type
Technical description
BWS500 supports all WXT530 series models.
Table 1. 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
Table 2. 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
Table 3. 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
Table 4. 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
Table 5. 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)
Table 6. 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 ACrms (−10 … +30 %)
Typical heating current

12 V DC: 800 mA, 24 V DC: 400 mA

12 V ACrms: 1.1 A

17 V ACrms: 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
Table 7. 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.
Table 8. WXT530 compliance
Property Description/Value

EU directives and regulations

EMC Directive (2014/30/EU)

RoHS Directive (2011/65/EU) amended by 2015/863

EMC compatibility

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
Table 9. 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)
Figure 1. WXT531 dimensions
Figure 2. WXT533 and WXT532 dimensions
Figure 3. WXT535 and WXT534 dimensions
Figure 4. WXT536 dimensions
Figure 5. WXT530 mounting kit (212792) dimensions
Figure 6. Mounting accessory (WMSFIX60) for connecting mounting kit (212792) and 60‑mm tube
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.