Changri Nup Thermohygrometer

At Changri Nup station a DMA 572 thermohygrometer was installed in 2010.

Temperature sensitive element is a thermoresistance Pt100 type while the humidity sensitive element is a

capacitive plate. The sensitive elements are protected from incident solar radiation by a double radiation

shield. Sensors for temperature and relative humidity measurements with radiation shield for

meteorological uses. Sensors are equipped with a microprocessor.

For temperature:

Range -30.+70°C

Sensitive element Pt100 1/3 DIN-B

Accuracy ± 0,1°C (0°C)

Hysteresis&Repeatability na

Resolution 0,025°C

Long term stability -0.04% (after 5 years at 200°C)

Calibration uncertainty 0,1°C

Response time (T63) Wind speed 0,3-0,5 m/s: 80sec

Radiation shield efficiency with respect to forced ventilation sensor (wind 0,5m/s, rad.800 W/m2): +0,6°C

For relative humidity:

Range: Nom.0..100%, Eff.10..98%

Sensitive element Capacitive

Accuracy 2,5% (11-90%) 0,6°C (20°C, 50%RH)

Hysteresis&Repeatability 0,5%

Resolution 0,2%

Long term stability -2%/year (at 75%RH) n.a.

Calibration uncertainty 0,1°C 1,5% na

Response time (T63) Wind speed 0,3-0,5 m/s: 80sec

Radiation shield efficiency with respect to forced ventilation sensor (wind 0,5m/s, rad.800 W/m2): n.a.

General characteristic:

Ventilation: Natural

Electric output Jumper locally selectable 2 x 0-20 mA, 4-20 mA, 0-5 V, 1-5 V. 60-300 mV

Output signals Output n.1: temperature. Output n.2: RH% or dew point (default RH%)

Operating temperature -30°+70°C

Sampling rate 1 sec. (default) PC programmable 1..300 sec.

N°acquisitions for mobile average calculation: N°1 (default), PC programmable 1..20 acquisitions

Load resistance (mA output): DMA570 300 Ohm

 
Citation proposal
(2011) . Changri Nup Thermohygrometer. https://geoportal.mountaingenius.org/geonetwork/srv/api/records/f464f0b7-56b3-4d54-90d2-381afc71bee2
 

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f464f0b7-56b3-4d54-90d2-381afc71bee2   XML
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  • Environment
 

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Coupled resource
 
 

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GEMET themes ( Theme )
  • air , climate , natural areas, landscape, ecosystems , research , pollution
GEMET themes ( Theme )
  • air , climate , natural areas, landscape, ecosystems , research , pollution
GEMET themes ( Theme )
  • air , climate , natural areas, landscape, ecosystems , research , pollution
GEMET themes ( Theme )
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  • NEXTDATA
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  • NEXTDATA
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  • NEXTDATA
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  • SHARE , network
Keywords ( Place )
  • Changri Nup Glacier , Himalaya , Nepal
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  • NEXTDATA
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  • NEXTDATA
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  • NEXTDATA
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  • SHARE , network
Keywords ( Place )
  • Changri Nup Glacier , Himalaya , Nepal
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • SHARE , network
Keywords ( Place )
  • Changri Nup Glacier , Himalaya , Nepal
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • NEXTDATA
Keywords ( Theme )
  • SHARE , network
Keywords ( Place )
  • Changri Nup Glacier , Himalaya , Nepal
 
 

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E
W


 

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Date ( Publication )
2011-05-22T08:00:00
 

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Ev-K2-CNR
Email
evk2cnr@evk2cnr.org
 

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Ev-K2-CNR
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evk2cnr@evk2cnr.org
 

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metadata@evk2cnr.org
Date stamp
2025-02-21T16:34:41
Metadata language
eng
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