TB4MM
TB4MM
OrderableConfigurableMetric Rain Gage with 8 in. Orifice
Research-grade, siphoned rain gage with 203 mm (8 in.) orifice. Calibrated to 0.2 mm/tip.
Pricing
Configuration
Sign in for option pricing- w/10m (33ft) per Sensor -PF w/Ferrules on Wiresrifice
- TB4MM - L HS Rain Gage 0.2mm (0.0079 inch) Tip w / 8 inch Orifice w/20m (66ft) per Sensor w/Ferrules on WiresTB4MM-20m
- TB4MM - L HS Rain Gage 0.2mm (0.0079 inch) Tip w / 8 inch Orifice w/30m (100ft) per Sensor w/Ferrules on WiresTB4MM-30m
Select a configuration to add to your quote
- Model:
- TB4MM
- Item Number:
- 45207
- Warranty:
- 1 year
- Lead time:
- 14 days
Overview
The TB4MM, manufactured by HS Hyquest Solutions, is a high-end tipping bucket rain gage that monitors rainfall in metric rather than US units. It has a 20.3 cm orifice and measures rainfall in 0.2 mm increments. The TB4MM is ideal for locations where intense rainfall events may occur. This tipping bucket is compatible with all Campbell Scientific data loggers, and it is used in environmental monitoring applications.
Technical Description
The TB4MM funnels precipitation into a bucket mechanism that tips when filled to its calibrated level. Each tip is marked by a dual reed switch closure that is recorded by a data logger pulse count channel. After measurement, the water drains through two orifices (accepts 12 mm tubing) in the base, allowing the measured water to be collected in a separate container.
The TB4MM contains an internal siphon mechanism that causes rain to flow at a steady rate to the tipping bucket mechanism (regardless of intensity). The siphon allows the sensor to make accurate measurements over a range of 0 to 50 cm per hour.
Benefits
- More accurate measurement of high-intensity precipitation
- High precision—tips at 0.2-mm increments
- Compatible with most Campbell Scientific data loggers
- Compatible with the CWS900-series interfaces, allowing it to be used in a wireless sensor network
Specifications
- Sensor Type
- Tipping bucket with siphon and dual reed switch
- Rainfall per Tip
- 0.2 mm
(0.008 in.)
- Measurement Range
- 0 to 700 mm/h
(0 to 27.6 in./h)
- Measurement Uncertainty
- ±2% @ < 250 mm/h
(9.8 in./h)
- Measurement Uncertainty
- ±3% @ 250 to 500 mm/h
(9.8 to 19.7 in./h)
- Measurement Uncertainty
- 700 mm/h
(27.6 in./h) maximum rate per hour
- Operating Temperature Range
- 0° to 70°C
- Humidity Range
- 0 to 100%
- Cable Type
- Two-conductor shielded
- Drain Tube Size
- Both filters accept 12 mm (0.47 in.) ID tubing.
- Orifice Diameter
- 20 cm
(7.9 in.)
- Height
- 33 cm
(13 in.)
- Weight
- 2 kg
(4.4 lb) with 7.62 m (25 ft) signal cable
