Agrology Archives -

Tipping Bucket Rain Sensor (KDS-071)

The KDS-071 is an advanced rain sensor utilizing a high precision tipping bucket mechanism with integrated modern electronics. It features a Hall-effect tip detector and internal electronics for precise rate compensation and optional calibration. Designed with a WMO recommended collector area and spout filter for debris prevention, it ensures accurate measurement of rainfall intensity.

Parameter	Conditions	Min	Type	Max	Units
Rain Measurement
Type of Sensor	Rugged Magnetic Proximity Reed Switch Pickup / Tipping Bucket with hall effect
Measurement Range			Unlimited		%
Output Units					%
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
Siphon	~4 ml capacity stainless steel & non-hydroscopic polymer with inset screen
Response Time Constant			0.1		Seconds
Sensitivity			0.25mm per tip
Orifice diameter			200 mm
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
Bucket	Siphon control mechanism & dual reed switches with protection. The rain gauge shall have a smooth surface finish with a sharp drain tip to drain out complete collected rain water in the bucket. Injection module non-hydroscopic ABS, UV-stabilized, chrome plated & balanced
Size		210 Ø(Base), 174(Body), 410(Height)	mm
Cable		2 Core Sensor
Construction Materials
Rain Collector	UV Stabilizer, Fiber Embedded Plastic
Bearing	Sapphire jeweled bearings with hard stainless steel shaft
Protection	IP65
Collector Area Stabilizer	Gunmetal (Brass Alloy)
Internal Parts	Engineering Plastic, SS316L, Chrome Planet Brass
Material of Outer Boady	UV resistant ABS Plastic
Deployment
Location		Outdoor
Electrical Interface		RS485
Operating Temperature Range		-40		+85	°C
Operating Relative Humidity		0		+100	%
Leveling	Bulls eye bubble level

Output	Switch Closure Time	Max Cable Length
Potential Free Contact	0.1 Sec	10 meter Two Core shielded copper cable
Mounting Accessories	1 ft x 1 ft square Plate (Material: Galvanized iron or Zinc Passivated iron)
2 ft Galvanized iron pole of suitable dimensions and sufficiently strong for TBRG installation
Protocols	KomBus Modbus
Calibration
Calibration Facility	KAL Sensor Calibration Facility
Traceability Offered	IMD (India) / NPL (India) / NIST (USA)
Accessories
To Be Separately Ordered	Extra Cable, Read out, Connectivity Adapter for USB R232, Radio etc.
Carrying Case	Wheeled rugged, field carring case made of hard material.
Notes. 1. The product is available with and without electronics. 2. An internal Voltage/Current output engine is available which can be programmed to output a voltage or current proportional to the normalized value of the rain accumulator with user’s full-scale value. 3. externally sunk current not included. This current is the load on the bus supply; the unit remains functional without any external power on its internal lithium power source.

Soil Moisture & Tempreature Sensor-KDS-043

The KDS-043 is a high-performance sensor designed for measuring soil moisture and temperature in automatic weather station environments, ideal for agriculture, greenhouse applications, and research. Developed with state-of-the-art technology, these sensors are built to rigorous specifications, ensuring stable, accurate, and reliable performance in diverse Indian environmental conditions.

Parameter	Conditions	Min	Type	Max	Units
Soil Moisture
Type of Sensing / PTR	TDR / PT 100 RTD
Resolution		1	%
Output Units					%
Range		0		100	%
Accuracy			1		%FS
Stabilization Time			10		Seconds
Sampling Rate			3		Seconds
Soil Temperature (For temperature compensation of soil moisture)
Resolution		0.02	˚C
Output Units			˚C
Range		-20		+60	C
Accuracy		-0.5	± 0.2	+0.5	C
Response Time			1		Seconds
Electrical
Supply Voltage		9		16	V
Cable Length			3 to 10		m
Outputs
Type		Serial Digital (UART)
Electrical Interface		RS485
Baud Rate		9600
Start, Stop Bits		1,1
Environmental
Temperature Range		-40		+60	°C
Humidity		0		100	%RH
Ingress Protection		IP68

Soil Moisture Sensor-KDS-042

The KDS-042 is a high-performance smart sensor designed for measuring soil moisture in automatic weather station environments, tailored for agriculture, greenhouse, and research applications. Developed using advanced technology, it ensures stable, accurate, and reliable performance in diverse environmental conditions, particularly in India.

Agrology

Tipping Bucket Rain Sensor (KDS-071)

Soil Moisture & Tempreature Sensor-KDS-043

Soil Moisture Sensor-KDS-042

Komoline Aerospace Limited

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