RIM-7499 Rain Gauge
The RIMCO RIM-7499 range of siphon controlled tipping bucket rain gauges are professional instruments designed and constructed for long-term operation with minimal maintenance under all climatic conditions. All materials are corrosion resistant. These proven instruments are accurate to within 3% up to rainfall rates of 190mm/hr.
The RIM-7499-STD (standard) comes with a lower specification funnel and calibration than the RIM-7499-BOM (Bureau Of Meteorology) version. The STD version is ultimately the ideal low-cost alternative to the BOM version. The lower cost RIM-7499-STD can however, be ordered with the higher specification 1% BOM calibration.
Rain falling on the 203mm collecting funnel is directed through a siphon control unit and discharges as a steady stream into a two-compartment bucket mounted in an unstable equilibrium. As each compartment fills, the bucket tilts alternately about its axis. Each tip forces a contact closure by magnetic means corresponding to 0.2 of rainfall. A calibration certificate is supplied with every RIM-7499 rain gauge.
| RIM-7499-BOM | RIM-7499-STD | ||
| Collector Diameter |
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203mm (8’’) ± 0.2mm | |
| Resolutions | 0.2mm (RIM-7499-020-BOM)
0.25mm; (RIM-7499-025-BOM) 0.5mm (RIM-7499-050-BOM) (0.01” & 0.02” to special order) |
0.2mm (RIM-7499-020-STD)
0.25mm; (RIM-7499-025-STD) 0.5mm (RIM-7499-050-STD) |
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| Accuracy | ±2% to 200mm/hr.
±3% to 380mm/hr. |
±3% to 380mm/hr.
Can measure up to 347mm/hr (4%) |
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| Contacts |
Two normally open magnetically actuated reed switches. Individual protection built-in |
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| Resolution |
1.24 μm |
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| Reed Switch Rating |
50V AC/DC @0.5A non-inductive |
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| Closure Timing |
50ms min.; 150ms max.; Max bounce time 0.75ms; up to 500mm/Hr |
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| Termination |
Screw termination (2.5mm²) |
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| Heating Option |
12 or 24V AC/DC (48W max) operation with electronic thermostatic control (P/N 7499-TCH); Please specify operating voltage when ordering. |
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| Data Logger Option |
Several models available depending on application requirements. Some data loggers may be installed within the body of the rain gauge. |
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| Dimensions | |||
| Height: |
300mm |
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| Body Diameter |
230mm |
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| Base Diameter |
280mm |
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| Net Weight |
5.5kg |
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| Shipping Weight |
7kg |
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| Materials |
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| Collector |
Copper |
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| Jacket |
Stainless Steel |
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| Base |
Cast Marine Grade Aluminium |
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| Bucket |
Gold Plated Brass |
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| Bridge |
Anodised Marine Grade Aluminium |
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| Switch Holder |
Delrin |
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| Fasteners |
Stainless Steel |
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| Mounting Accessory |
A rugged mounting pedestal that elevates the collection RIM 1m above ground level (P/N RIM-7499-Stand) |
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