Cảm biến đo mưa Campbell Scientific TB4MM-L

Thương hiệu: Campbell Scientific | Tình trạng: Còn hàng
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TB4MM-L Metric Rain Gage with 8 in. Orifice

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Cảm biến đo mưa Campbell Scientific TB4MM-L

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 dataloggers, and it is used in environmental monitoring applications.

Benefits and Features

  • More accurate measurement of high-intensity precipitation

  • High precision—tips at 0.2-mm increments

  • Compatible with all Campbell Scientific dataloggers (including the CR200(X) series)

  • Compatible with the CWS900-series interfaces, allowing it to be used in a wireless sensor network

Detailed 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 datalogger 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.

Specifications

Sensor Type

Tipping bucket with siphon

Accuracy

  • ±2% @ < 250 mm/h (9.8 in./h)

  • ±3% @ 250 to 500 mm/h (9.8 to 19.7 in./h)

Resolution

0.2 mm (0.008 in.)

Measurement Range

0 to 700 mm/h (0 to 27.6 in./h)

Temperature Range

0° to 70°C

Humidity

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) cable

Download

Brochures

TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages

Manuals

TB4 and TB4MM Hydrological Services Rain Gage

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