WXT530 specifications - WXT530

WXT530 Series User Guide

Document code
M211840EN
Revision
F
Language
English (United States)
Product
WXT530
Document type
User guide
Table 1. 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. 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. 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. 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. 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
Averaging time 1 … 3600 s, sample rate 1, 2, or 4 Hz (configurable)
Table 6. 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. WXT536 analog input options
Parameter Element Range Input 9 Excitation Resolution
Temperature (Pt1000) Resistor 800 … 1330 Ω

2‑wire

4‑wire

2.5 V 16 bits
Solar radiation Thermopile 0 … 25 mV 4 MΩ 12 bits
Voltage input Voltage

0 … 2.5 V

0 … 5 V

0 … 10 V

> 10 kΩ 12 bits
Tipping bucket rain gauge Frequency 0 … 100 Hz 18 kΩ 3.5 V
Table 8. WXT530 analog mA output options
Parameter 10 Description/Value
Wind speed 0 … 20 mA or 4 … 20 mA
Wind direction 0 … 20 mA or 4 … 20 mA
Load impedance Max. 200 Ω
Update interval Max. 4 Hz
Table 9. 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 11 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 10. 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)
Table 11. 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
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).
Table 12. Electromagnetic compatibility
Applicable standard Description Level tested Performance 12

CISPR 32 / EN 55032, Class B

Radiated emissions 30 MHz … 18 GHz Class B

CISPR 32 / EN 55032, Class B

Conducted emissions DC 150 kHz … 30 MHz Class B
IEC 61000‑4‑2 Electrostatic discharge 8 kV con / 15 kV air B
IEC 61000‑4‑3 RF field immunity 10 V/m 13 A
IEC 61000‑4‑4 Electric fast transient 3 kV B
IEC 61000‑4‑5 Surge 2 kV B
IEC 61000‑4‑6 Conducted RF immunity 10 V A
IEC 60945 Radiated emissions 150 kHz … 2 GHz Exposed
IEC 60945 Conducted emissions 10 kHz … 30 MHz Exposed
IEC 60945 Electrostatic discharge 8 kV con / 15 kV air B
IEC 60945 RF field immunity 10 V/m 13 A
IEC 60945 Electric fast transient 3 kV B
IEC 60945 Surge 2 kV B
IEC 60945 Conducted RF immunity 10 V A
IEC 60945 Conducted low frequency interference immunity 3 V B
IEC 60945 Extreme power supply variation −10 % +30 % A
IEC 60945 Power supply failure 3 times 60 s B
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
1
Mounting kit with adapter sleeve for Ø 26.7 mm (1.05 in) mast tube
2
Mounting kit without adapter sleeve for Ø 30 mm (1.18 in) mast 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 The input can be wiring type, input impedance, or pull-up resistor value.
10 When the analog output option is applied, digital communication is not available.
11 Due to the measurement frequency used in the sonic transducers, RF interference in the 200 … 400 kHz range can disturb wind measurement.
12

A = Normal performance

B = Temporary degradation (self-recoverable)

C = Temporary degradation (operator intervention needed)

D = Not recoverable

13 Within frequency range 2 … 6 GHz minimum immunity for WXT is 4V/m.