Cảm biến đo nhiệt độ bề mặt kết nối SDI-12 Campbell Scientific CS230-L

Thương hiệu: Campbell Scientific | Tình trạng: Còn hàng
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Cảm biến đo nhiệt độ bề mặt kết nối SDI-12 Campbell Scientific CS230-L

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Cảm biến đo nhiệt độ bề mặt kết nối SDI-12 Campbell Scientific CS230-L

Overview

The CS230-L temperature profiler uses SDI-12 digital technology for simple integration and reliability. The CS230-L consists of a rigid probe assembly and up to four optional external temperature probes. The rigid probe assembly maintains the precise position of the temperature points within the profile, while protecting the temperature sensors in all mediums for the long-term.

The CS230-L is suited for a wide variety of applications and environments, such as in roadbeds, soils, and water (snow and ice).

The CS230-L can be installed either flush to the ground surface, or it can be buried. Campbell Scientific recommends using a minimum burial depth of 20 cm (7.87 in.) for the first measurement point in applications where the sensor may become damaged. For example, in roadbed monitoring applications or in areas that may experience freeze thaw cycles, a 20 cm burial depth helps protect the sensor from load damage in roads, and it helps secure the sensor when frost heaving occurs. For measurements at depths shallower than 20 cm, Campbell Scientific recommends using external probes.

Benefits and Features

  • Customizable measurement spacing for any number of applications

  • Available external probes simplify installation for roadbed applications

  • Makes use of the included SGB3 to protect against electrical surges

  • One SDI-12 channel used to connect all temperature sensors

  • Low power - suitable for remote applications

  • No calibration required

  • Serial number and installation depth data for each location stored on-board each sensor

  • Excellent long-term stability of measurements

  • Comprehensive measurement range

Detailed Description

The CS230-L consists of a rigid probe assembly and up to four optional external temperature probes. The rigid probe assembly maintains the precise position of the temperature points within the profile, while protecting the temperature sensors in all mediums for the long-term.

The completely sealed probe assembly and external probes permit the CS230-L to be used in roadbeds, soils, and water (snow and ice).

Examples of some applications include spring load adjustment, frost and permafrost monitoring, soil, and water or snowpack temperature profiling.

When power is supplied to the CS230-L, the internal electronics will continuously measure the temperature at an approximate rate of 1 measurement per second. Every output measurement obtained from the sensor is a running average of 10 consecutive 1-second readings. The accuracy specification is based on an average of 10 consecutive readings. For this purpose, after initial power up, it is recommended to delay 10 seconds to obtain the best accuracy.

Because the sensor is obtaining a measurement every 1 second, it is recommended to use the Continuous measurement command to obtain the temperature readings. Using the “R” commands will reduce the time taken to obtain a reading with the SDI-12 protocol.

Specifications

Operating Temperature Range

-55° to +85°C

Typical Accuracy

±0.2°C (-40° to +85°C) includes lifetime drift

Worst Case Accuracy

  • ±0.4°C (−40° to +85°C) includes lifetime drift

  • ±0.5°C (-55° to -40°C) includes lifetime drift

Resolution

0.0078°C

Communications

SDI-12

Maximum Sensors per Probe

32

Minimum Spacing

5 cm (1.97 in.)

Optional External Probes

4 (maximum)

Supply Voltage

9 to 28 Vdc

Current Consumption

  • 1.0 mA (max) quiescent current draw per sensor

  • 20 mA + (# sensors * 1.0 mA) active current draw

Warm-up Time on Power up

10 s

Probe Diameter

2.13 cm (0.84 in.)

Standard External Probe Length

45 cm (18 in.)

Maximum Length

3.0 m (118 in.)

Maximum Cable Length

152 m (500 ft)

Download

Brochures

CS230 SDI-12 Temperature Sensor Profiler

Manuals

CS230 Temperature Profiler

Compliance

CS230 EU Declaration of Conformity

Miscellaneous

CS230 Temperature Profiler Order Form

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