This product is no longer available and has been replaced by: RIM-7499-STD. Some accessories, replacement parts, or services may still be available.
RIM8000 Commercial Grade Rain Gauge
Services Available
Repair Yes
Calibration Yes
Free Support Yes


The RIM8000 series is a commercial grade rain gauge that uses the same tipping bucket and siphon assembly as the RIM7499 series but with a spun aluminium base and a spun copper collecting funnel and rim. The RIM8000 is accurate to within /- 3% at intensities up to 380mm per hour and /- 5% at rates up to 500mm per hour. Can be ground mounted or mounted on galvanised pipe using Campbell Scientific’s CM240 rain gauge mount. Other bucket sizes are available on request.
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Benefits and Features

  • Rugged and corrosion resistant construction
  • Low friction, non-seizing bucket bearings
  • Gold plated buckets for minimal retention
  • Dual reed switch output
  • Mercury wetted switch option
  • Stable calibration
  • Built-in bubble level
  • Optional self powered internal counter
  • Optional heater for operation below –20°C


Detailed Description

The RIMCO 8000 series rain gauge utilises the bucket and siphon assembly of the high performance RIMCO 7499 series to ensure accuracy and a long service life but at a lower cost. All materials used are corrosion resistant and designed for almost all environmental conditions. The RIMCO 8000 is accurate to within 3% up to 380mm/hr and 5% up to 500mm/hr. Rain falling on the 203mm (8”) diameter collecting funnel is directed through a siphon control unit and discharges as a steady stream into a precision two compartment bucket mounted in unstable equilibrium. As each compartment fills the bucket tilts alternately about its axis. Each tilt produces a momentary contact closure as a result of a magnet sweeping past a reed switch assembly. Each contact closure corresponds to 0.2mm, 0.25mm or 0.5mm of rainfall according to bucket capacity. An individual calibration certificate is supplied with every RIM8000 rain gauge.


Receiving Collector:  203 ± 0.2mm (8”) diameter
Accuracy:  ±3.0% to 380mm/hr (siphon must be fitted) 
±5.0% to 500mm/hr (siphon must be fitted) 
Bucket Capacities: 0.2mm (model RIM8020)
0.25mm (model RIM8025)
0.5mm (model RIM8050)
Switch and Rating:  Dual reed switch assembly
50V ac/dc at 0.5A non-inductive
50V ac/dc at 1A for mercury wetted switching option
Contact Closure Timing:  100 milliseconds nominal, up to 50 milliseconds variation;0.75 milliseconds bounce time max
Termination:  Screw termination (2.5mm2) and 4.8mm male spade terminations on Switch Holder
Overall Dimensions:  300mm height; 230mm body diameter; 275mm mounting flange diameter
Mounting:  Three 10mm holes at 120° pitch on mounting flange at 256 mm diameter between centres
Materials: Collector Assembly Copper, Jacket Stainless Steel, Base Painted Marine Grade Aluminium, Bucket Gold Plated Brass, Bridge Marine Grade Aluminium, Reed Switch Holder Delrin, Fasteners Stainless Steel
Weights:  2.8kg net, 4.5kg shipping weight, Standard shipping carton - 330mm x 330mm x 430mm
Heater Option  12V or 24V ac/dc (48W max) with electronic control factory set to 5°C (P/N RIM80HOPT)
Temperature Operating:  0° to +60°C (without heating); below -20° to +60°C (with heating); storage -65°C to +75°C
Humidity Operating:  0% to 100%, storage 5% to 100%.


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