​674 Rain Gauge

When you purchase instruments from Teledyne ISCO, you not only receive innovative, high quality products, you also receive excellent customer service and product support. Your initial purchase is only the beginning of Teledyne ISCO's ongoing commitment to their customers.

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​​​​​​​​​​​​​​​​​​​​Rain Gauge
Type:	Tipping bucket
Compatible equipment:	Teledyne ISCO 6700, 6712, and Avalanche Samplers, 4200 Series Flowmeters, 4100 Series Flow Logger, Signature Flowmeters
Connect cable:	50 ft. (15.2 m), 2 conductor with 4-pin plug
Bearings:	Spring-loaded sapphire jewel
Orifice Diameter:	8 in. (20 cm)
Sensitivity:	English - 0.01 inch; Metric 0.1 mm
Accuracy:	English - ±1% at 2 in/hour; +3%/-4% up to 5 in/hour. Metric - ±1.5% at 5 cm/hour; +3.5%/-9% up to 13 cm/hour
Capacity:	English – 22 inches/hour; Metric – 38 cm/hour
Output Signal:	Contact closure of at least 50 millisecond duration
Switch Type:	Normally open, encapsulated reed; 10 watts, 200V DC, 0.5 A maximum
Height:	13 in. (33 cm)
Diameter:	9.5 in. (24 cm) (at mounting base)
Weight:	10 lbs. (4.5 kg)
Operating Temperature:	32° to 140°F (0° to 60°C)
Storage Temperature:	-40° to 140°F (-40° to 60°C)
​For a full list of product specifications, see the datasheet. Datasheet

 Standard Features

• Three-point leveling and integral bubble level make it easy to align the rain gauge for maximum accuracy.
  
• Sapphire jewel bearings on the tipping bucket are spring-loaded to prevent damage to the bearings and ensure consistent operation over a wide temperature range.
  
• Screens cover all openings to prevent leaves, insects, and other debris from clogging the gauge.
  
• Included 50-foot cable connects directly to compatible Teledyne ISCO flowmeters and samplers.

Applications

• Stormwater runoff monitoring
  
• Inflow and infiltration studies
  
• Combined sewer overflow monitoring
  
• CMOM and CSO/SSO pro​grams (Sewer overflow monitoring and prevention)
  
• General rainfall measurement

Options and Accessories

• English units - tips every 0.01 in. of rainfall
  
• Metric units - tips every 0.1 mm of rainfall