CMP10x Pyranometer

CMP10x Pyranometer

The CMP10x is a fully compliant with ISO 9060:2018 and IEC 61724-1:2021 analog pyranometer designed for high-accuracy solar irradiance measurement in the most demanding environments. Built on CMP10, it ensures low instrument drift over long-term use, a 5-year calibration interval, and a maintenance-free desiccant lasting over a decade. Integrates a thermistor for temperature compensation, improved environmental resilience, and a robust 4-pin connector, CMP10x ensures reliable performance for scientific research, PV monitoring, and extreme climate applications—all backed by a 5-year warranty and a proven lifespan exceeding 10 years.

Specifications

Downloads

Manuals

• Manual - Pyranometers - CMP10x - English

Technical info

• Pyranometer versus Reference Cell

Datasheets

• CMP10x - CMP22 pyranometers - EN
• Datasheet - Albedometers - EN

STEP files

• CMP6-10x pyranometer - universal CAD drawing (STEP)

Brochures

• Brochure - Pyranometers

FAQ

• What parameters or errors should we take into account if the source of light comes from a certain angle?

  • If the Pyranometer remains horizontal the error involved is the directional error listed in the Pyranometer brochure.

    For CMP 3 < 20 W/m²  and for CMP 22 < 5 W/m²

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• Can I use a pyranometer under water?

  • The CMP series can also be used under water, the depth is limited to 1 meter and can only be used for short measurements.

    It is advisable not to keep the Pyranometer of the CMP series under water for longer than 30 minutes.

    The SP Lite2 pyranometer and the PQS 1 PAR Quantum Sensor can be used for a longer period under water, the depth is limited to 2 meters. Please also take  “breaking of light on the water surface” in consideration.

    

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• If I use a pyranometer under water, can I connect a data logger to it ?

  • Yes, however the data logger needs to be placed on the surface (it is weather resistant, but cannot be lowered into the water).

     

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• What is the calibration frequency of a pyranometer?

  • We advise to re-calibrate the Pyranometer every two years. 

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• What does spectral range of 310 – 2800 nm (50% points) mean?

  • The 50 % points are the wavelengths where the output of the instrument is 50 % reduced with 100 % input.

    

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• What is the WMO standard for the pyranometers?

  •  

    	CMP 3	CMP 6	CMP 11	CMP 21	CMP 22
    WMO	Moderate quality	Good quality	High quality	High quality	High quality
    ISO	Spectrally Flat Class C	Spectrally Flat Class B	Spectrally Flat Class A	Secondary Standard	Secondary Standard

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• What is the resolution of a pyranometer?

  • The instrument has an analog output, therefore the resolution is infinite. Every change is noticed, no matter how small it is.

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• What is the bandwidth of a pyranometer?

  • The bandwidth of most pyranometers is 285 to 2800 nm. This covers the full solar spectrum as shown below.

    There are some exceptions:

    • CMP22 has a bandwidth of 200-3600nm (Quartz glass )
    • SP Lite  has a bandwidth of 400-1100nm (silicon photo diode)
    • CMP3 has a bandwidth of 300-2800nm

     

     

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• In our PV application the cable from the CMP 11 (50 meters) will go along other cables that come from the PV panels in which there is a DC voltage and around 100 Amps. Will these cables affect the measurement?

  • The disturbance on the cables on the CMP 11 is difficult to judge from a distance. A test would give the best criteria in this case.

    Simply cover the CMP 11 so it is fully dark (in box with cloth etc.) Log the data over a period that disturbance is expected, at least one day.

    If the data is zero no problem is to be expected.

     

     

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• Do you have filters that can be used to verify spectral distribution over the following wave lengths? Ultraviolet - B 280-320 Ultraviolet - A 320-360 and 360-400 Visible 400-520, 520-640 and 640-800 Infrared 800-3000nm.

  • No, we do not have filters for any of our pyranometers. The only way to do this in a correct way is to use a filter dome. Otherwise the directional response would be affected.

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• Is there a standard product that converts the pyranometer output signal to 0-5V or 0-2V?

  • The AMPBOX is the best solution.

    You will need a suitable PSU and a shunt resistor of 500 Ω to convert the current output (4..20mA) to a voltage output of 2-10V , or you will need a shunt resistor of 50 Ω to convert the current to a voltage output of 0.2-1V.

    

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• What kind of pyranometer do you suggest for usage inside a greenhouse?

  • CMP 6 in combination with PQS1 PAR Quantum Sensor is advised.  CMP 6 for outside usage to measure Global solar radiation. PQS1 to measure  PAR radiation inside which is most sensitive for plants and crops.

    

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• What type of pyranometer can I use for my fixed PV panels farm?

  • For this application the CMP10 and SMP10 are advised as they have an internal drying cartridge that will last for at least 10 years.

    Please note that the pyranometer needs to be mounted in the same angle (POA) as the PV panel. 

     

    

    For users that prefer the desiccant visible Kipp & Zonen offers the CMP11 and SMP11 with visible and user changeable desiccant.

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• What type of pyranometer can I use for my solar concentrators farm?

  • None, solar concentrators are reflecting the direct solar radiation  to a concentrator and are tracking the sun. You will need a pyrheliometer on a sun tracker to measure direct solar radiation.

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• I would like to know what kind of output the CMP 6 Pyranometer has (analog or digital)? What voltage range do you have?

  • The CMP 6, as with all our solar radiometers based on thermopiles has a continuous small analoge voltage output. For CMP 6 an irradiance of 1 W/^m2 generates an output signal in the region of 5 to 15 micro-volts. We have additional solutions to increase this voltage.

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Accessories

	Accessory	Description
	CMF Mounting Fixtures More information	CMF1 and CMF4 mounting fixtures for all series pyranometers	Add To Basket
	Glare Screen Kit More information	Sun protection screen for downward facing radiometers mounted on an albedo/net radiation mounting plate	Add To Basket
	CM121B/C Shadow Ring More information	To be used with Kipp & Zonen pyranometers, smart pyranometers, pyrgeometers and UV radiometers to shield the instrument from direct radiation.	Add To Basket
	CVF4 Ventilation Unit More information	Ventilating solar radiation instruments improves the reliability and accuracy of measurements and reduces maintenance. CVF4 is a high quality waterproof ventilation unit designed to be used with Kipp & Zonen pyranometers, pyrgeometers, and ultraviolet radiometers.	Add To Basket
	METEON Data Logger More information	METEON is a hand-held device for use with Kipp & Zonen passive radiometers to display real-time irradiation values and has an integrated data logging function to store up to 3500 samples. METEON will operate for up to 7 weeks on 2 x AA batteries.	Add To Basket
	AMPBOX Amplifier More information	AMPBOX is a current loop amplifier for the complete range of solar radiometers.	Add To Basket
	Adjustable Tilt Radiometer Mounting Kit More information	Mount a radiometer at a desired solar zenith angle between 0° and 90° to measure tilted global or diffuse radiation.	Add To Basket
	LOGBOX SE Data Logger More information	LOGBOX SE is a weatherproof field data logger with 4G LTE cellular communication. Designed for use with all Kipp & Zonen solar radiation instruments, both analog and Modbus®, including RT1. It is also compatible with DustIQ and Lufft all-in-one weather stations. LOGBOX SE can operate from internal batteries, external DC power or a solar panel.	Add To Basket
	Fixed Feet For Tilted CMP/SMP6-22 Mounting More information	Kit with two fixed feet for easy installation of POA pyranometers.	Add To Basket

Relevant news items

4/7/2015 Precise solar radiation measurement ensures efficient performance

10/10/2016 A perfect time to calibrate

3/10/2015 Lufft Smart Weather Sensor with CMP10 Secondary Standard Pyranometer

10/10/2014 Lufft announces new weather sensor with integrated Kipp & Zonen CMP10 pyranometer

10/21/2013 The new CMP10, because we know what makes a secondary standard pyranometer better

11/22/2018 Kipp & Zonen Pyranometers, is an 11 better than a 10? You decide.

8/1/2018 How do you install tilted pyranometers?

5/10/2011 FAQ from SolarExpo 2011: the spectral changes due to changing weather conditions

2/11/2019 Hot topics in monitoring solar irradiance

7/23/2018 Choosing the right data logger for your Kipp & Zonen CMP series pyranometer

4/2/2020 Bifacial Photovoltaics are on the rise: check out our guide for the how’s an the why’s

1/26/2016 Extend your warranty to 5 years!

3/9/2015 The Importance of Pyranometer Temperature Response

1/7/2014 What is a Solar Monitoring Station?

1/19/2015 SOLYS 2 Sun Tracker Instruction Video

6/20/2016 Suncertainty: the Kipp & Zonen pyranometer uncertainty calculator

Application examples

1/24/2017 Norway’s Largest Solar Energy Plant

6/2/2015 Kipp & Zonen France and PTS Mesures; a Long History of Cooperation

3/29/2014 Solar Monitoring Station for Moscow Environmental Protection Department

3/28/2014 Solar Energy Challenges in the Gobi Desert

11/28/2008 Improving Photovoltaic Efficiency

1/15/2018 Measurement of UV radiation added to Antarctic site of the LES solar measurement network

8/24/2017 Ventilation case study in Finland

5/23/2017 Novel Estimation of Albedo Using a Drone Pyranometer