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M&J UA-002-64 HOBO Pendant Temperature/Light 64K Data Logger Quick view

Reference: UA-002-64

Brand: ONSET

UA-002-64 HOBO Pendant Temperature/Light 64K Data Logger

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A miniature, value-priced, waterproof data logger for temperature and light monitoring applications; stores 52K measurements.  IMPORTANT INFORMATION Requires HOBOware software and either an Optic USB Base Station or a HOBO Waterproof Shuttle (U-DTW-1). HOBOware Pro is required when using the HOBO Waterproof Shuttle. See compatible items below.
Price €100.00
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VH400 - Low-Cost Soil Moisture Sensors Quick view

Reference: VH400-2M

Brand: VEGETRONIX

VH400 - Low-Cost Soil Moisture Sensors

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VH400 Soil Moisture Sensor Probe Specifications Power consumption: < 13mA Supply Voltage: 3.5V to 20 VDC. Dimensions See drawing. Power on to Output stable: 400 ms Output Impedance: 10K ohms Operational Temperature: -40ºC to 85ºC Accuracy at 25°C: 2% Output: 0 to 3V related to moisture content Shell Color: Red Voltage Output Curves: Curves, Piecewise...
From Price €78.00
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SR15-D2A2 Pyranometer
  • SR15-D2A2 Pyranometer
  • SR15-D2A2 Pyranometer
  • SR15-D2A2 Pyranometer
  • SR15-D2A2 Pyranometer

SR15-D2A2 Pyranometer

SR15-D2A2

Digital first class pyranometer with Modbus over TTL and 4-20 mA output

SR15 digital pyranometer series is an all-digital range of solar radiation sensors applied in general high-accuracy observations. SR15 pyranometers comply with the “first class” specifications according to the ISO 9060:1990 standard and “spectrally flat class B” requirements in the 2018 revision. Version SR15-D2A2 offers Modbus over TTL, and 4-20 mA current loop output.

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Description
Measurand:  hemispherical solar radiation
ISO 9060:2018 classification:  spectrally flat Class B pyranometer
ISO 9060:1990 classification:  first class pyranometer
IEC 61724-1:2021 compliance:  Class B
Application:  National Meteorological Networks,PV monitoring commercial and utility scale,PV monitoring small sized,meteorology / climatology,other
Heater:  no
Output:  4-20 mA current loop,Modbus TTL
Calibration uncertainty :  < 1.8 % (k = 2)
Calibration traceability:  to WRR
Spectral range : 285 to 3000 x 10⁻⁹ m
Response time:  < 10 s
Zero offset a:  5 W/m² unventilated
Rated operating temperature range:  40 to +80 °C
Temperature response:  < ± 2 % (-10 to +40 °C)
Heater:  1.5 W at 12 VDC
Standard cable length:  5 m
Levelling:  optional spring-loaded levelling, with or without tube mount
Output:  :
Communication protocol:  Modbus
Hardware interface:  TTL
Transmission mode:  RTU
Output:  irradiance in W/m² and instrument body temperature in °C
On-board heater:  not included
Analogue output:  4-20 mA current loop
Version order codes:  SR15-D2A2, SR15-D2A2-LM01, SR15-D2A2-TLM01

Options
Spring levelling – convenient for easy mounting, levelling and exchange of instruments on flat surfaces (LM01)
Pipe levelling bracket with bolt set (TLM01)
PMF01 bracket for inclined installations
Longer cable – 10 and 20 metre lengths
20 metre extension cable with 2 connectors

Improved measurement accuracy
Calibration of the SR15 pyranometer has been improved – our latest calibration method results in a sensitivity uncertainty of 1.8%, compared to typical uncertainties of over 2.8% for this class of pyranometers. The response time of the SR15 is <10 s, a significant improvement over previous sensors and the competition.

Use as sunshine duration sensor
WMO has approved the “pyranometric method” to calculate sunshine duration from pyranometer
measurements in WMO-No. 8, Guide to Meteorological Instruments and Methods of
Observation. This implies that SR15 may be used, in combination with appropriate software,
to estimate sunshine duration. This is much more cost-effective than using a dedicated sunshine
duration sensor. Ask for our application note.

Suggested Use

  • Photovoltaic system performance monitoring
  • General solar resource monitoring
  • Indoor simulated solar testing
  • Weather networks
Product Details
SR15-D2A2
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