Cảm biến đo độ tuyết dày Campbell Scientific CS725

Thương hiệu: Campbell Scientific | Tình trạng: Còn hàng
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CS725 Snow Water Equivalent Sensor

Gọi 0904251826 để được trợ giúp

Cảm biến đo độ tuyết dày Campbell Scientific CS725

Overview

The CS725 measures snow-water equivalent (SWE) by passively detecting the change in naturally occurring electromagnetic energy from the ground after it passes through snow cover. It is mounted above the ground and has no contact with the snow. As the snow pack increases, the sensor detects the attenuation of the electromagnetic energy from the ground, and SWE can be calculated. The measurement area of the CS725 is 50 to 100 square meters (540 to 1,075 square feet), making it an excellent replacement sensor for the traditional snow pillow and snow scale.

Benefits and Features

  • Performance not affected by rainfall or snowfall

  • Effective with any type of snow or ice

  • Excellent replacement for traditional snow-pillow sensors

  • Non-contact measurement

  • Does not cause the melt of light snow

  • Greatly reduces the need for site visits

  • No site preparation or earthworks required for setup

  • 5-10 times the measurement area of the nearest competitor

  • Not affected by snow bridging

  • Will not cause snow drifting

  • Seven-year maintenance cycle

  • No antifreeze chemicals used (i.e., glycol)

Detailed Description

The CS725 uses an innovative, non-contact method of measuring snow water equivalent (SWE). It passively detects the change in naturally occurring electromagnetic energy (mainly from the decay of 40K) from the ground after it passes through snow cover.

As SWE changes, the amount of energy that penetrates the snow pack changes—regardless of the state of the water (that is, liquid or frozen). A sensor installed above the ground prior to the first snowfall will have a base-line measurement of the electromagnetic energy coming from the ground. As snow accumulates and energy is attenuated, the SWE value will increase. The CS725 has an internal processor that determines the SWE and sends this information to a datalogger or communication device via RS-232.

Specifications

  • Measurement Range: 600 mm maximum water equivalent

  • Accuracy:
    ±15 mm from 0 to 300 mm
    ±15% from 300 to 600 mm

  • Resolution: 1 mm

  • Coverage Beam Angle: 60°

  • Operating Temperature: -40° to +40°C

  • Power Requirements: 
    11 to 15 Vdc

  • Power Consumption: 180 mA

  • Output Format: RS-232 (1200 to 115200 bps)

  • Maximum Cable Length: 30 m

  • Cable Type: four conductor, two-twisted pair, 22 AWG, Santoprene jacket

  • Length: 62 cm (24.4 in.)

  • Diameter: 12.7 cm (5 in.)

  • Main Body Weight: 9 kg (20 lb)

  • Collimator Weight: 25 kg (55 lb)

  • Total Weight: 34 kg (75 lb)

Dowload

Brochures

CS725 Snow Water Equivalent Sensor

Manuals

CS725 Snow Water Equivalency Sensor

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