Kritech & Co PGmbH



 
 
 


CHP 1

The CHP 1 pyrheliometer is the latest development in the field of solar radiation measurement. Building forth on the legacy of the CH 1, this instrument offers further improved accuracy and reliability.

CHP 1 fully complies with the most current ISO and WMO performance criteria for First Class Normal Incidence Pyrheliometer. Every CHP 1 is calibrated upon manufacture, and is supplied standard with a WRR (World Radiometric Reference) traceable calibration certificate.

The CHP 1 is fitted with a high quality connector for easy installation and maintenance. The screw-in drying cartridge is easy to remove and the replacement desiccant is supplied in convenient refill packets.

As standard CHP 1 come with both Pt-100 and 10k thermistor temperature sensors.

The instrument covers the total solar spectrum between 200 to 4000 nm. CHP 1 is intended for use with any model Kipp & Zonen two-axis Tracker.

The CHP 1 is the perfect choice for high accuracy direct solar radiation measurements.

Main features :

  • Fast response time
  • Excellent temperature dependence of sensitivity
  • Excellent linearity
  • Excellent long-term stability of sensitivity
  • Connector for easy installation/maintenance
Specifications :
ISO classification First Class ISO
Maximum irradiance 4000 W/m²
Spectral range 200nm to 4000nm
Sensitivity (nominal) 7 to 14 µV/W/m²
Impedance (nominal) 10 to 100 Ohm
Response time (95 %) < 5 s
Non-linearity < 0.2% (0 to 1000 W/m²)
Temp. dependence of sensitivity < 0.5% (-20ºC to +50ºC)
Zero-offset due to temp. changes ± 1 W/m² (at 5 K/hr ambient temp. change)
Full opening view angle 5º ± 0.2º
Slope angle 1º ± 0.2º
Required tracking accuracy ±0.5º from ideal
Operating temperature -40ºC to +80ºC
Traceability World Radiation Reference
Weight 1 kg (1.5kg incl 10m cable)
Cable length 10m (standard), 25m, 50m (optional)

Available documents (PDF files) :
English



 
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