CSD3 Sunshine Duration Sensor

Quick Overview

The CSD 3 is used for monitoring sunshine duration and automates the process previously undertaken by a traditional Campbell-Stokes recorder. The CSD 3 measures solar radiation through a high quality glass tube. It has no moving parts and uses 3 photo-diodes with specially designed diffusers to make an analogue calculation of when it is sunny. The output is switched high or low to indicate sunny or not sunny conditions. The calculated direct irradiance value is also available as a 1mV = 1W/m². The CSD 3 includes an externally controlled two level built in heater, with optional thermostat control, and a robust mounting arm for easy installation.

View Options

Details

The CSD 3 was designed as a means of automating the process of measuring sunshine duration for meteorological agencies and replaced the traditional Campbell-Stokes recorders, which only provided highly subjective results from manually checked burn marks on card. The CSD 3 will provide a clear sunny/not sunny output along with an actual value for the calculated solar irradiance.

Sunshine duration is defined by WMO as the time during which the direct solar radiation exceeds the level of 120 Wm². Sunshine Duration Sensors are widely used in weather networks to provide the number of sunshine hours per day for tourist information. In agriculture the CSD 3 monitors the amount of sunshine received by crops. In building automation it can be used to automate the control of sun blinds.

The CSD 3 has no moving parts and uses 3 photo-diodes with specially designed diffusers to make an analogue calculation of when it is sunny. The output is switched high or low to indicate sunny or not sunny conditions. The calculated direct irradiance value is also available as a mV output.

The CSD 3 requires a 12vDC power supply and has a two level built-in heater to dissipate rain, snow and frost. The heaters are normally switched externally but an optional internal thermostat control is available to allow this to be automatically controlled. The unit also includes a replaceable drying cartridge that will remove internal moisture and the CSD 3 includes a humidity indicator to show when this should be replaced.

Features

Waterproof plug-and-socket cable connection for easy installation and servicing
Humidity indicator to show when a change of drying cartridge is necessary
Larger capacity drying cartridge that is easier to change at reduced intervals
Low maintenance at long intervals
Glass tube, for improved resistance to scratching by storm-blown sand and ice
Operating temperature range extended, -40 to +70ºC

Specifications

Spectral Range:	400 to 1100nm
Operating Temp:	-40 to +70°C
Sunshine Signal:	1 ±0.1 V (direct radiation > 120Wm²)
Accuracy:	>90% (monthly sunshine hours)
Analogue Signal:	1mV/Wm²
Accuracy:	>90% (direct signal for clear sky)
Response Time:	<1ms
Power Supply:	12vDC @ 0.1W Heating Level 1: +1W (dew removal) Heating Level 2: +10W (frost and snow removal)
Thermal Switch (Optional):	Level 2 ON <6°C, ±3°C Level 2 OFF >14°C, ±3°

Availability: Stock Item

Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

REF	DESCRIPTION	DOWNLOADS	PRICE	ORDER ITEM

CSD 3 Sunshine Duration Sensor
0342901-000	CSD 3 Sunshine Duration Sensor for measuring the duration and amount of direct solar radiation above 120W/m². No moving parts, direct irradiance value derived from global and diffuse radiation measurements from 3 photo-diode detectors. Derived direct irradiance output signal of 1mV/Wm² and switched output: 1V for sunny; 0V for not sunny. Typical accuracy better than 90%. Operating temperature -40 to +70°C. Integrated heater with 2 power levels; 1W or 10W. 12vDC power supply. Supplied with no plug or cable.	Datasheet Size: (380.76 KB)	£2,166.00	or call us for a quote
0342901-003	CSD 3 Sunshine Duration Sensor for measuring the duration and amount of direct solar radiation above 120W/m². No moving parts, direct irradiance value derived from global and diffuse radiation measurements from 3 photo-diode detectors. Derived direct irradiance output signal of 1mV/W/m² and switched output: 1V for sunny; 0V for not sunny. Typical accuracy better than 90%. Operating temperature -40 to +70°C. Integrated heater with 2 power levels; 1W or 10W. 12vDC power supply. Supplied with waterproof 8-pin plug connector with 15m of pre-wired yellow signal cable.		£2,335.00	or call us for a quote

CSD 3 Sunshine Duration Sensor with Thermostat
0342901-030	CSD 3 Sunshine Duration Sensor for measuring the duration and amount of direct solar radiation above 120W/m². No moving parts, direct irradiance value derived from global and diffuse radiation measurements from 3 photo-diode detectors. Derived direct irradiance output signal of 1mV/Wm² and switched output: 1V for sunny; 0V for not sunny. Typical accuracy better than 90%. Operating temperature -40 to +70°C. Integrated thermostatically controlled heater with 2 power levels; 1W or 10W. 12vDC power supply. Supplied with no plug or cable.		£2,485.00	or call us for a quote
0342901-033	CSD 3 Sunshine Duration Sensor for measuring the duration and amount of direct solar radiation above 120W/m². No moving parts, direct irradiance value derived from global and diffuse radiation measurements from 3 photo-diode detectors. Derived direct irradiance output signal of 1mV/W/m² and switched output: 1V for sunny; 0V for not sunny. Typical accuracy better than 90%. Operating temperature -40 to +70°C. Integrated thermostatically controlled heater with 2 power levels; 1W or 10W. 12vDC power supply. Supplied with waterproof 8-pin plug connector with 15m of pre-wired yellow signal cable.		£2,648.00	or call us for a quote

Connection Options for SMP, SGR, SUV, CMP21 (PT100), CMP22 (PT100), CGR3 (PT100), CGR4 (PT100), CHP1, CNR4, UVS, CSD3
2523146	Waterproof 8-pin plug connector for the following Kipp & Zonen equipment. SMP Pyranometers, SGR Pyrgeometers, SUV Radiometers, CMP Pyranometers with PT100 output, CGR3 and CGR4 with PT100 output, CHP1, CNR4, UVS Radiometers and CSD3 Sunshine Duration Sensors.		£49.00	or call us for a quote
0362621	Waterproof 8-pin plug connector with 10m of pre-wired high quality yellow signal cable with 8 wires and a shield covered with black sleeve. Suitable for: For SMP, SGR and SUV5 Smart Radiometers, plus CMP21 (PT100), CMP22 (PT100), CGR3 (PT100), CGR4 (PT100), CHP1, CNR4, UVS, CSD3		£173.33	or call us for a quote
0362623	Waterproof 8-pin plug connector with 25m of pre-wired high quality yellow signal cable with 8 wires and a shield covered with black sleeve. Suitable for: For SMP, SGR and SUV5 Smart Radiometers, plus CMP21 (PT100), CMP22 (PT100), CGR3 (PT100), CGR4 (PT100), CHP1, CNR4, UVS, CSD3		£331.99	or call us for a quote