Environmental Monitoring and Industrial Measurement
Environmental Monitoring and Industrial Measurement
Model 6501V-H and 6539B
The 6501 weather transmitter offers a six-in-one solution to measure barometric pressure, humidity, precipitation, temperature, and wind speed and direction – all with one instrument. Compact and lightweight, the 6501 is suitable for weather stations, dense networks, buildings, golf courses, marinas, harbours and hotels – almost anywhere where real-time weather data is needed. Accurate and reliable data provided to you early enough can increase safety to life and property.
To measure wind speed and direction, the 6501 incorporates the Vaisala WINDCAP® sensor that uses ultrasound to determine horizontal wind speed and direction. The array of three equally spaced transducers on a horizontal plane is a Vaisala specific design, which ensures accurate wind measurement from any horizontal wind direction without blind angles and corrupted readings.
Barometric pressure, temperature, and humidity measurements are combined in the PTU module using capacitive measurement for each parameter. It is easy to change the module without any contact with the sensors. Precipitation measurement is based on the Vaisala acoustic RAINCAP® sensor.
The 6539 humidity and temperature probe is designed for reliable outdoor humidity and temperature measurements. The probe is very accurate, has excellent long-term stability and negligible hysteresis.
The humidity and temperature probe’s small diameter allows it to be used in applications with space restrictions, for example, shipping containers or between planks in timber drying kilns. It is designed especially for demanding outdoor applications.
The probe has the proven HUMICAP® 180R humidity sensor that has excellent stability and withstands harsh environments as well as Pt100 RTD temperature sensor. The probe structure is solid and the sensor is protected by default with a sintered Teflon filter, which gives maximum protection against liquid water, dust, and dirt.
The 6539 probe is also a warmed probe which reduces the risk of condensation forming on the head of the probe and with that reduces the chance of measurement data corruption.
The probe can be used in conjunction with the Model 6704A Radiation Gill Screen & Mount in standalone situations
Weather Transmitter 6501V-H
Size: Dia 115mm x 238mm tall, IP66
Weight: 850 grams (including three batteries)
Operating temperature: -52°C to 60°C. Not affected by humidity
Range: 0 … 60 m/s
Response time: 250 ms
Available variables: average, maximum and minimum
Accuracy: ±3% at 10m/s
Output resolution: 0.1 m/s, 0.1km/h, 0.1 mph, 0.1 knots
Azimuth: 0 … 360°
Response time: 250 ms
Available variables: average, maximum and minimum
Accuracy: ±3% at 10m/s
Output resolution: 1°
Rainfall: Cumulative accumulation after the latest automatic or manual reset
Collection area: 60cm2
Output resolutions: 0.01 mm (0.001 inches)
Accuracy: 5%
Range: -52 … +60°C (-60 … +140°F)
Accuracy for sensor at +20°C: ±0.3°C (±0.17°F)
Output resolutions: 0.1°C (0. 1°F)
Range: 600 … 1100 hPa
Accuracy:
±0.5 hPa at 0 … +30°C (+32 … +86°F)
±1 hPa at -52 … +60°C (-60 … +140°F)
Output resolutions: 0.1 hPa, 10 Pa, 0.001 bar, 0.1 mmHg, 0.01 inHg
Operating voltage: 6 … 24 VDC
Typical current consumption: 3 mA at 12 VDC (with defaults)
Outputs: SDI-12, RS-232, RS-485, RS-422
Cable: 5m of 8 core cable
Humicap® Humidity & Temperature Probe 6539B
Size: Dia 40mm x 267mm tall, IP66
Weight: 350 grams
Operating temperature: -80°C to 60°C. Not affected by humidity
Range: 0 … 100%RH
Accuracy:
±1%RH at +15° to +25°C and 0-90%RH
±1.7%RH at +15° to +25°C and 90-100%RH
±(1+0.008 x reading)%RH for -20° to +40°C
Range: -80 … +60°C (-112 … +140°F)
Accuracy:
±(0.226-0.0028 x temperature)° for -80° to +20°C
±(0.055+0.0057 x temperature)° for +20° to +60°C
Operating voltage: 7 … 28 VDC, minimum operating voltage 12V with 0-5V output.
Typical current consumption: 3 mA at 12 VDC (with defaults)
Outputs:
1 analog 0-1VDC – Relative Humidity
1 analog 0-1VDC – Temperature
Cable: 3.5m of 4 core cable
| Model | Description |
|---|---|
| 6501V-H | Weather Transmitter RS232/422/485 SDI-12 With Bird Spikes |
| 6501M-V-GAL-R | Weather Transmitter Mount Adaptor for Round 50mm Galvanised Pipe |
| 6501M-V-TRI | Weather Transmitter Mount Adaptor for Tripod |
| 6539B | Humicap® humidity and temperature probe |
Sales Enquiry Form
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Brochure
6501V Weather Transmitter
6539B Humidity and Temp probe
Manual
Unidata Manual – 6539B Humidity & Temperature Probe (5V)
Application Notes
Air quality and dust monitoring
Aquaculture Monitoring
Evaporation monitoring
Geothermal Power Station Monitoring
High voltage transmission tower monitoring
Mine Site Environmental Monitoring
Rivers and streams monitoring
Weather monitoring