降水传感器/ TB4MM-L
TB4MM-L公制雨量量量8英寸

概述

这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.

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Benefits and Features

  • More accurate measurement of high-intensity precipitation
  • High precision—tips at 0.2-mm increments
  • 兼容的with most Campbell Scientific data loggers
  • 兼容的with the CWS900-series interfaces, allowing it to be used in a wireless sensor network

产品模型上的“ -l”表示电缆长度在订单时指定。

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Detailed Description

TB4MM将降水液变成一个水桶机构，该机构将其填充到其校准水平时提示。每个提示都由数据记录器脉冲计数通道记录的双芦苇开关闭合标记。测量后，水通过两个孔（接受12毫米管）排出，从而使测得的水被收集在一个单独的容器中。

TB4MM包含一种内部虹吸机制，该机制使雨水以稳定的速度流向倾​​倒桶机制（无论强度如何）。虹吸管允许传感器在每小时0至50 cm的范围内进行准确的测量。

规格

Sensor Type Tipping bucket with siphon and dual reed switch
Rainfall per Tip 0.2毫米（0.008英寸）
Measurement Range 0 to 700 mm/h (0 to 27.6 in./h)
Accuracy
  • ±2％ @ <250 mm/h（9.8 in./h）
  • ±3％ @ 250至500 mm/h（9.8至19.7 in./h）
Accuracy 700 mm/h（27.6 in./h）每小时最大速率
工作温度范围 0° to 70°C
湿度范围 0至100％
Cable Type 两通导器屏蔽
Drain Tube Size 两个过滤器都接受12毫米（0.47英寸）ID管。
孔口直径 20厘米（7.9英寸）
Height 33cm (13 in.)
重量 2 kg (4.4 lb) with 7.62 m (25 ft) signal cable

兼容性

笔记：这following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.

数据记录仪

产品 兼容的 笔记
21X（退休）
CR10（退休）
CR1000（退休）
CR1000X
CR10X（退休）
CR200X（退休）
CR206X（退休）
CR211X（退休）
CR216X（退休）
CR23X（退休）
CR295X（退休）
CR300
CR3000
CR310
CR500（退休）
CR5000（退休）
CR510（退休）
CR6
CR800
CR850
CR9000（退休）
CR9000X（退休）

Additional Compatibility Information

Mounting

尺寸的底部由三腿支撑。建议使用具有平整能力的CM240平级基础和安装座或用户供应的底板。CM240可以连接到CM300系列的杆子，或者可以连接到用户提供的1.5 IP（1.9英寸外径，未读取）管道（请参阅Ordering Information）。建议使用混凝土垫。

风屏

坎贝尔科学提供了260 - 953年风屏幕to help minimize the affect of wind on the rain measurements. This wind screen consists of 32 leaves that hang freely and swing as the wind moves past them.

经常问的问题

与tb4mm-l：12

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  1. If a data logger is not registering any tips, what can be done?

    这following are some suggestions to try:

    1. 检查与芦苇开关有牢固的连接。螺钉应紧密，电线应与螺钉具有坚实的连接。
    2. 尝试将连接从使用的当前REED开关转到辅助Reed开关连接。
    3. Check that the cable is connected to the correct input on the data logger. Take the two wires on the other end of the cable (the sensor side) and touch them together. The data logger should register a tip. If the tip registers, the issue is with the reed switch. Replace the reed switch.
    4. 如果数据记录器仍未注册小费，请尝试使用其他电缆。

  2. 在TB4-L，TB4MM-L或CS700-L上执行现场校准检查的步骤是什么？
    1. Remove the housing assembly from the base by removing the three screws and lifting upward on the housing.
    2. 检查气泡水平以验证雨量的水平。
    3. 将水通过内部漏斗倒入两个水桶表面。使用渐变的气缸，慢慢倒入314 cc（19.16英寸3）在15分钟的时间内进入收集漏斗。这卷水等于0.39英寸的降雨量（10毫米）。
    4. 水经过雨量量后，TB4-L或CS700-L的小费应为39次倾斜，或TB4MM-L的50次。
    5. If the rain gage fails to record the correct number of tips, return the unit to Campbell Scientific for recalibration.
  3. What can cause a data logger to not receive correct tipping data?

    If data is not being logged correctly, there are two likely causes:

    • 芦苇开关失败了。
    • 这re is a faulty connection from the rain gage to the data logger, typically caused by a broken conductor or corroded wiring.
  4. 有什么指标表明倾倒桶雨量尺寸有故障的芦苇开关？

    没有注册任何提示，缺失的提示或双提示。

  5. What are the indicators that a tipping bucket rain gage is out of calibration?

    提示不足或提示太多。

  6. What type of wind screen can be used for a tipping bucket rain gage?

    这260-953Alter-type rain gage wind screen consists of 32 heavy metal leaves that hang freely and swing as the wind moves past them. The swinging leaves act as a wind damper and help minimize the effect of wind on the rain measurements without adding additional turbulence.

  7. 倾倒桶雨量尺寸最常见的错误是什么？

    最常见的错误是雨ge appears to have drifted out of calibration or that the tips are not being correctly recorded by the data logger.

  8. What are the different cable length choices available for Campbell Scientific sensors?

    大多数坎贝尔科学传感器都可以作为–L提供，该传感器表示用户指定的电缆长度。如果将传感器列为–LX模型（其中“ X”是其他字符），则传感器的电缆具有用户指定的长度，但它用特定的连接器终止了独特系统：

    • An –LC model has a user-specified cable length for connection to an ET107, CS110, or retired Metdata1.
    • An –LQ model has a user-specified cable length for connection to a RAWS-P weather station.

    如果传感器在主型号之后没有–L或其他-LX名称，则传感器具有设置的电缆长度。电缆长度在产品订购信息中的描述字段末尾列出。例如，034B-ET型号的描述说明“遇到了一个为ET站的一组，67英寸电缆”。具有固定电缆长度的产品，默认情况下，带辫子。

    If a cable terminates with a special connector for a unique system, the end of the model number designates which system. For example, the 034B-ET model designates the sensor as a 034B for an ET107 system.

    • –ET模型终止于ET107气象站的连接器终止。
    • –ETM models terminate with the connector for an ET107 weather station, but they also include a special system mounting, which is often convenient when purchasing a replacement part.
    • –QD models terminate with the connector for a RAWS-F Quick Deployment Station.
    • –PW models terminate with the connector for a PWENC or pre-wired system.
  9. Where are the available cable termination options listed for a particular sensor?

    Not every sensor has different cable termination options. The options available for a particular sensor can be checked by looking in two places in the Ordering information area of the sensor product page:

    • Model number
    • Cable Termination Options list

    If a sensor is offered in an –ET, –ETM, –LC, –LQ, or –QD version, that option’s availability is reflected in the sensor model number. For example, the 034B is offered as the 034B-ET, 034B-ETM, 034B-LC, 034B-LQ, and 034B-QD.

    All of the other cable termination options, if available, are listed on the Ordering information area of the sensor product page under “Cable Termination Options.” For example, the 034B-L Wind Set is offered with the –CWS, –PT, and –PW options, as shown in the Ordering information area of the 034B-L product page.

    笔记：由于通常将较新的产品添加到我们的库存中，因此我们将在单个传感器模型下列出多个电缆终止选项，而不是创建多个模型号。例如，HC2S3-L具有将其连接到CS110而不是提供HC2S3-LC模型的–C电缆终止选项。

  10. What can cause a tipping bucket rain gage to be out of calibration?

    When a rain gage is out of calibration, it is usually because of the buildup of dirt and grime on the internal surfaces of the tipping bucket mechanism. Cleaning the internal surfaces usually brings the rain gage back into calibration. It is also possible that a rain gage is out of calibration because it is no longer level.

    To minimize the possible occurrence of calibration errors, perform routine cleaning and maintenance of the rain gage at least once every three months. The environmental conditions at a particular site may require a facility to perform cleaning, leveling, and maintenance on a much more frequent schedule.

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