• Removable stainless steel funnel screen
• Rustproof, powder painted aluminum enclosure and cast base
• All internal parts anodized aluminum or stainless steel
• Magnetic reed bucket tip sensor
• Precision bucket bearings
• Adjustable feet with internal bulls-eye level


 H-340SDI model

• Works with any SDI-12 Logger
• SDI-12 digital interface supports multiple sensors on a simple three wire cable
• Built in microprocessor automatically corrects for errors caused by sensitivity of the tipping bucket mechanism to varying rainfall rates


Applications

• Accurately measure rainfall
• Meteorology
• Monitor storm water run off

 

 

 

Performance
Sensor	Tipping bucket with magnetic reed switch
H-340SDI Model: Accuracy/Rainfall Rate
	Resolution	0.01 in (0.2 mm)
	Rain fall rate	0 to 25 in (635mm)/hr (calibrated)
Interface
SDI-12 Output	Baud Rate	1200
	Protocol	SDI-12 V1.3, 7-bit even parity, 1 stop bit
	Output Voltage Level	Minimum high level: 3.5 volts
		Maximum low level: 0.8 volts
		Maximum cable length:   250 ft (76 m)
SDI-12 Output Data Parameters	1 - Accumulated rainfall since last measurement
	2 - Raw bucket count since last measurement
	3 - Total accumulation
	4 - Total daily accumulation (today)
	5 - Total daily accumulation (yesterday)
	Automatic daily accumulation using built-in crystal controlled time of day clock
Power Requirements	Voltage Input	10 to 16.0 Volts DC
	Current	Standby 150uA typical
		Raining 3.7mA for 60 seconds
		Communicating  9.8 mA
Connectors	SDI-12 Output 4-position spring clamp terminal block (WAGO)
Environmental
Electronics	Operating Temperature	-40° C to 60° C
	Storage Temperature	-50° C to 70° C
Environmental Mechanical	Operating Temperature	0° C to 60° C
Mechanical
Physical	Aperture	8 in diameter funnel (20 cm)
	Diameter	8 in (20 cm)
	Height	12 in (30 cm)
	Weight	8 pounds (3.7 kg)
	Housing	Extruded aluminum tube. Cast aluminum base with drain tubes in the bottom. Anodized aluminum internal parts. Stainless steel screws and fasteners. Powder painted base, funnel and housing.
	Mounting	3-stainless leveling screws with adjustable aluminum feet. Internal “bulls-eye” level.
	Exit Ports	Two screened drain tube fittings on bottom of casing
Miscellaneous
Warranty	The WaterLOG® H-340and H-340SDIare warranted against defects in materials and workmanship for two years from date of shipment.
Specifications subject to change without prior notice due to ongoing commitment to product testing and improvement. LR January 15, 2011. D09 311.

Manuals

H-340 Calibration Kit

H-340SDI Manual

Catalogs & Brochures

H-340/H-340SDI Brochure

H-3401 Tipping Bucket Rain Gauge

 

		H-340-CAL KIT Field Calibration Kit H-340-CAL KIT Field Calibration Kit for H340 Switch Closure Output Rain Gauge
		H-340-COVER Funnel and Barrel for 8 in. Rain Gauge H-340-COVER Funnel and Barrel for 8 in. Rain Gauge
		H-340-COVER12 Funnel and Barrel for 12 in. Rain Gauge H-340-COVER12 Funnel and Barrel for 12 in. Rain Gauge
		H-340-HEAT Heater Option for Rain Gauge (factory installed) H-340-HEAT Heater Option for Rain Gauge (factory installed)
		H-340-SCREEN Debris Screen for 8 in. Rain Gauge H-340-SCREEN Debris Screen for 8 in. Rain Gauge
		H-340-SCREEN12 Debris Screen for 12 in. Rain Gauge
		H-340-SEAL Sealed Connection Option for Rain Gauge (factory installed) H-340-SEAL  Sealed Connection Option for Rain Gauge (factory installed)