Software Archives -

Solar Radiation Sensor (KDS-051)

The KDS-051 Solar Radiation Sensor from Komoline uses a high-precision silicon photodiode and cosine-corrected diffuser for accurate global radiation measurement. Its stable, self-calibrating electronics ensure reliable performance with minimal sensitivity to environmental temperature changes. The sensor is designed to be direction insensitive and includes built-in leveling features for easy horizontal alignment, making it ideal for precise solar radiation monitoring in diverse conditions.

Parameter(KDS-051)	Conditions	Min	Type	Max	Units
Radiation
Type of Sensor	Photo Diode
Measurement Rang		0		2000	Wm-2
Accuracy			5		%FS
Resolution		±1%1	Wm-2
Response Time Constant				0.5	s
Temperature Dependence			< ±1		%
Output
Response Time			0.5		s
Settling Time on Power-On	To Rated Accuracy			5	s
Latency on Power-On				1	s
Update Rate		0.5	Hz
Averaging Aperture	User Settable	0.5		600	s
Physical
Mass	Cable Not Included		<400		g
Size		120 x 120 x 120	mm
Enclosure Materials		Anodized AI6061/Acetal/SS316L
Cable		UV Resistant Cable
Deployment
Location		Outdoor
Operating Temperature Range		-40		+60	°C
External Interface
The sensor is available in nine standard output configurations as detailed below

Output Option	Interface	Leve	Baud Rate	Protocols	Max Cable Length	Power Supply
3V Digital (D00)	UART	3V Digita	9600-115.2k	KomBus/Modbus	5 to 10m	4-28V (<1mA)
RS485 (D01)	UART	RS485	9600-115.2k	KomBus/Modbus	250m	4-28V (<1.5mA)
RS232 (D02)	UART	RS232	9600-115.2k	KomBus/Modbus	10m	4-28V (<1.5mA)
Voltage Output 1 (A01)	Voltage	0-1 to 0-3V	–	–	10 to 20m	4-30V (1.5mA)
Current Loop (4-20mA) (A02)	Current	4-20mA	–	–	250m	4-40V (4-20mA)
Voltage Output 2 (A03)	Voltage	0-3 to 0-10V	–	–	20 to 40m	4-30V (<2.5mA)
Radio 1 (R01)	Radio	433 MHz	9600-115.2k	Please See User Manual for Details	Please See User Manual for Details	Internally Lithium Powered
Radio 2 (R02)	Radio	930 MHz	9600-115.2k
Radio 3 (R03)	Radio	2400 MHz	9600-115.2k
Calibration
Calibration Facility	KAL Sensor Calibration Facility
Traceability	IMD (India) / NPL (India) / NIST (USA)
Accessories
Included with Sensor	Mounting Accessories, Readout and Setup Software (for Windows), Mating Connector (Wired Versions), 10m Sensor Cable
To Be Separately Ordered	Extra Cable, Readout. Connectivity Adaptor for USB, RS232, Radio etc
Notes. 1.Accuracy is specified with one minute or more averaging, at 25°C, after full calibration. 2. Output units can be customized if required. Please contact factory. 3. Response Time is the time the sensor takes to capture 90% or more of a step change with the averaging set to minimum. 4. Temperature measurement accuracy about 3 deg. C. 5. Analog output offered can be set by the user to cover any interval within the sensor’s range. 6. Does not include current sunk by the host system out of the sensor’s output lines and is valid for digital operation only. 7. Supply Voltage must exceed the required voltage compliance by 1 Volt at least.

Light Intensity Sensor (KDS-053)

The KDS-053 Light Intensity Sensor from KAL is designed for precise measurement applications and features RS485 connectivity for long-distance communication. It features multi-drop configuration, advanced microcontroller-based architecture and embedded calibration routines for reliable and consistent performance; and offers compatibility across different sensor types.

Parameter KDS-053 –	Conditions	Min	Type	Max	Units
The Sensing Front End
Type of Sensor	Precision Silicon Photodiode
Type of Sensing Element	High Stability Electronics
Type of Optical Interface	Cosine-Corrected Diffuser
Sensing Area			80		mm2
Spectral Response	10% Points	380		800	Nm
Field of view	Cosine Corrected Incidence Range	-60		+60	°
Ful		170+		°
Averaging Aperture	User settable	1		600	s
Totalization	User Resettable	Available
Measurement
Measured Parameter	Light Intensity
Spectral Reference	Standard Solar Spectrum
Accuracy	At calibration point		2		% FS
Full Range		4		% FS
Resolution			10		lux
Long-Term Stability				1	%FS
Dark Reading				0	lux
Power Supply
Supply Voltage	Line Drop Not Included	4	12	28	V
Reverse Polarity Protection	28V, Indefinite Time
Current Consumption			<5		mA
Output
Type of Connectivity	RS485, Half-Duplex
Number of Wires	4 (Supply Voltage, RS485-A, RS485-B, Ground)
Type of Communication	UART
UART Setup	9600 Baud, No Parity, 1 Start Bit, 2 Stop Bits
Communication Protocol	KomBus 1.0
Deployment
Deployment	Outdoor, Continuous
Mounting	On Base Plate / Level Hard Smooth Surface
Cable Length				250	m
This cable length is the rated maximum drive capability of the sensor. The standard issue of cable is 10m, extendable upon request.
Environmental
Operational Temperature	Ambient	-40		+60	°C
Storage Temperature		-40		+80	°C
Humidity	Condensation Tolerant	0		100	%RH
Rain	Fully tolerant to tropical rain
Mechanical
Maximum Dimensions	125 x 125 x 125 mm
Leveling	Spirit Level Assisted Leveling Screws
Mass	Cable Not Included	<400 gm

Tipping Bucket Rain Sensor (KDS-071)

KDS-071 Tipping Bucket Rain Sensor by Komoline Aerospace is a rain measurement sensor employing a reliable tipping bucket mechanism and advanced electronics. It features a high-precision bucket with a WMO-recommended 200cm2 collector area and knife-edged rim for precise calibration, ensuring accurate rain rate output under diverse weather conditions.

Parameter KDS-071 –	Conditions	Min	Type	Max	Units
Rain Measurement
Type of Sensor	Rugged Magnetic Proximity Reed Switch Pickup / Tipping Bucket with hall effect
Measurement Range			Unlimited
Accuracy	±2% for rain rate up to 25 mm/hr
	±3% for rain rate between 25 mm/hr to 50 mm/hr
	±4% for rain rate between 50 mm/hr to 100 mm/hr
	±5% for rain rate above 100 mm/hr
Resolution	Options Available	0.1/0.2/0.25/0.5			mm Rain
Response Time Constant			0.1		Seconds
Collector Area			200		cm2
Collector Diameter			159.6		mm
Output
Reed Switch Electrical Characteristics		Potential Free Contact
Reed Switch Closure Pulse Width		10		100
Reed Switch Breaking Voltage				100
Reed Switch Breaking Current				250
Physical
Mass			>2.3		kg
Size		210 Ø(Base), 174(Body), 410(Height)			mm
Cable		2 Core Sensor
Construction Materials
Rain Collector	UV Stabilizer, Fiber Embedded Plastic
Collector Area Stabilizer	Gunmetal (Brass Alloy)
Internal Parts	Engineering Plastic, SS316L, Chrome Planet Brass
Material of Outer Body	Stainless steel / Aluminium
Deployment
Location		Outdoor
Operating Temperature Range		-40		+85	°C
Leveling	Level Adjustment Screw and circular spirit level for leveling of Tipping Bucket Mechanism

Software

Solar Radiation Sensor (KDS-051)

Light Intensity Sensor (KDS-053)

Tipping Bucket Rain Sensor (KDS-071)

Komoline Aerospace Limited

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