Rugged, digital temperature measurements
概述
The CS231 offers the same precise temperature profiling as ourCS230 SDI-12温度分析器，但具有更纤薄的设计，更容易在钻孔和道路应用中使用。与CS230相比，CS231需要更小的安装孔。对于道路应用，这意味着更轻松的钻井，以及较少的时间和材料来回填充。
The CS231 SDI-12 Temperature Profiler uses SDI-12 digital technology for simple integration. SDI-12 does away with analog measurement inaccuracies and susceptibility to electrical noise. The CS231 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.
CS231适用于各种应用和环境。完全密封的探针组件和外部探针允许CS231用于路基，土壤和水（雪和冰）。
Applications where the CS231 is used include spring load adjustment, frost and permafrost monitoring, soil, and water or snowpack temperature profiling.
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Benefits and Features
- Lifetime min/max temperature recording
- User-resettable min/max temperature recording
- 自动一秒钟温度更新
We have created a new tool to help you configure your temperature profiler. It includes parameters for lead length, first sensor from ground, and distance between sensors:
Images
Detailed Description
When power is supplied to the CS231 probe, the internal electronics continuously measure the temperature at an approximate rate of one measurement per second. Every output measurement obtained from the sensor is a running average of 10 consecutive one-second readings. The accuracy specification is based on an average of 10 consecutive readings. For this reason, after the initial power up, it is recommended to delay 10 seconds to obtain the best accuracy.
Because the sensor is obtaining a measurement every one 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°至+ 85°C |
| Typical Accuracy | ±0.2°C (at -40° to +85°C) |
| 最糟糕的情况准确性 |
|
| 解决 | 0.0078°C |
| Communications | SDI-12 |
| 电源电压 | 9 to 28 Vdc |
| Warm-up Time on Power up | 10 s |
| 每个探针的最大传感器 | 32 |
| Optional External Probes | 4 maximum |
| Minimum Spacing | 5 cm (1.97 in.) |
| Maximum Length | 3.0 m (118 in.) |
| Probe Diameter | 2.13 cm (0.84 in.) |
| Maximum Cable Length | 152 m (500 ft) |
| Standard External Probe Length | 45厘米（18英寸） |
Current Consumption |
|
| 静态电流消耗 | 1.0 mA (maximum per sensor) |
| Active Current Drain | 20 mA + (number of sensors * 1.0 mA ) |
Compatibility
Note:The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.
Data Loggers
| Product | Compatible | Note |
|---|---|---|
| 21X.(retired) | ||
| CR10(retired) | ||
| CR1000(retired) | ||
| CR1000X | ||
| CR10X(retired) | ||
| CR200X(retired) | ||
| CR206X(retired) | ||
| CR211X(retired) | ||
| CR216x.(retired) | ||
| CR23X(retired) | ||
| CR295x.(retired) | ||
| CR300 | ||
| CR3000(retired) | ||
| CR310 | ||
| CR350 | ||
| CR500.(retired) | ||
| CR500.0(retired) | ||
| CR510(retired) | ||
| CR6 | ||
| CR800. | ||
| CR850 | ||
| CR9000(retired) | ||
| CR9000X(retired) | ||
| CR9000XC(retired) |
额外的兼容性信息
Configuration
我们的便利CS231配置工具can help you configure your profiler, and it assists our staff with customizing your profiler to your specifications. It includes parameters for lead length, first sensor from ground, and distance between sensors.
Documents
Brochures
Downloads
CS230/CS231 Program Examples (4 KB)08-26-2021
Three example programs that measure the temperature sensors on the CS230/CS231 probe. The number of temperature sensors and the SDI-12 control terminal are entered as constants at the beginning of the programs to allow users to easily change them to match their application. The example programs support the CR6 and CR1000X data loggers. Programs for other dataloggers will be similar.
CS231.CRB程序使用SDI-12地址1到9和A到A至F至F的15个传感器。每60秒，AR0！命令轮询每个温度传感器，然后数据存储在表中。其他公共站数据每60秒测量每60秒并存储到每日数据表。
The cs231-slow.CRB program measures 20 temperature sensors with SDI-12 addresses 1 through 9 and A through F. The program uses the SlowSequence instruction and the aR0! command to poll each temperature sensor every 60 seconds. The temperature sensor data is stored to a data table on the same interval. Other common station data is measured every 5 seconds and stored to daily and hourly data tables.
cs231-metdata。CRB程序措施15个传感器with SDI-12 addresses 1 through 9 and A through F. Each temperature sensor is polled on power up and daily with the aR1! command to determine metadata, which is stored in a daily data table. Other common station data is measured every 60 seconds and stored to a separate daily data table.
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