TB305: Tipping bucket rain gauge

TB305: Tipping bucket rain gauge

TB305 tipping bucket rain gauge is designed for measuring rainfall and precipitation in remote and unattended locations. Unit includes a 305 mm collector, integrated syphon control mechanism, dual output reed switches with varistor protection and dual discharge outlets for water collection and analysis.
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Receiver: 305 mm ±0.8 diameter heavy
duty cast aluminium, Powder coated
Bucket capacity: 1.0 mm of rainfall.
Sensitivity: one tip
Maximum intensity: 700 mm/hr.
Calibration accuracy:
  • 0-250 mm/hr ±2%
  • 250-500 mm/hr ±3%
  • Long term stable calibration.
Humidity: 0 to 100 %
Operating Temperature Ranges:
  • Measuring: 0 to 70 °C (without ice accretion or snow cumulation)
  • Deployment: -20 to 70 °C
Contact system: dual reed switches potted in soft silicon rubber with varistor protection.

  • Max Capacity: 24 Volts (0.5 amp ma-Resistance: Initial contact resistance 0.1 OHMS
  • M.T.B.F: 108 to 109 Operations
Syphon: straight through mechanism
Bucket: bucket assembly balanced to ±0.1 gms
Base: Aluminium
Level: bulls eye level adhered to aluminium
base
Mounting holes: three 10 x 20 mm slotted holes with 234 to 254 PCD cast
in feet attached to outside diameter of base.
Pivots: ground nickel silver pivots with hard stainless steel shaft.
Insect covers: stainless steel mesh on all openings to prevent insects and ants entering gauge
Outer enclosure: keyed to enable the release of the outer enclosure without the need for the removal of the three securing screws.
Height/Weight: 415 mm / 5.5 kg
Packed Dimensions: 6 kg, 0.04m3
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TB305 tipping bucket rain gauge in front view
TB305 – Tipping bucket rain gauge
Tipping bucket gauge with 305 mm catch
  • 305 mm catch
  • Accuracy not affected by rainfall intensity
  • Bucket size: 1mm
  • Long term stable calibration
  • Leaf filter resists blocking
  • Optional internal Data Logger, with no external power requirement
  • In-built discharge outlets at base for water collection and analysis
  • Dual output signal for data collection and transmission
  • World class meteorological instrument
  • Easy to service with low maintenance requirement
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