线缆适用于连接到RAWS-P气象站
概览
CS516-LQ含有一个CS506可燃物含水量探头、一个26601 10-小时可燃物含水量模拟木销、一个CS205可燃物温度模拟木销和一个107热敏电阻温度探头，它们固定在26817固定木架上。CS506 和 107探头的线缆长度由用户指定，不过接头为连接到RAWS-P机箱的军品快速接头，而不是尾线方式。RAWS-P机箱可安装到Campbell Scientific的三脚塔或直立塔。
图像
技术说明
将107温度探头插入CS205的中间销孔里，测量得到可燃物的温度。建议每年春季更换一次CS205；在某些环境中可能需要更换更频繁（例如：雨季/旱季循环更多的地区）。
它含有用环氧树脂封装的电子套件，采集时域反射技术（TDR）来检测USFS指定的26601 10-小时 可燃物含水量仿真木销中的含水量。传感器产生 ±0.7-Vdc 的方波，由Campbell Scientific数据采集器的模拟通道或脉冲通道来读取。数据采集器再将频率通过二次校准曲线转换成可燃物含水量百分比。
为了最优化探头到探头的可重复性，以达到不需要逐一校准就可实现探头可交换的目的，在木销被选中用于传感器之前，对其实施两个传统的分类方法：首先，用密度来排出较干燥的木销，改善它们0 至 15%较干燥量程范围内的精度；其次，对木销实施50分钟的浸泡，减小探头与探头间的时间响应差异，最小化20至50%较湿量程内的波动性。
产品规格
Fuel Moisture |
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| Enable Voltage |
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| Operating Range | 0 to 70% moisture content |
| Power Supply | 5 to 18 Vdc |
| Current Use |
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| Output Signal | ±0.7 Vdc square wave (with an output frequency of approximately 31 to 58 kHz) |
Fuel Temperature |
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| Sensor | BetaTherm 100K6A1B Thermistor |
| Tolerance | ±0.2°C (over 0° to 50°C range) |
| Temperature Measurement Range | -35° to +50°C |
| Steinhart-Hart Equation Error | ≤ ±0.01°C (over measurement range) |
Fuel Moisture Accuracy |
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| 0 to 10% Range |
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| 10 to 20% Range |
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| 20 to 30% Range |
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| 30 to 50% Range |
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兼容性
The cables on the CS506 and 107 probes have a user-specified length and terminate in a military style connector instead of pigtails. The connector attaches to the RAWS-P enclosure, which mounts to a Campbell Scientific tripod or tower.
The CS516-LQ is not compatible with data loggers in the CR300 series and the CR200(X) series.
常见问题解答
CS516-LQ: 2
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For descriptions and illustrations (with part numbers) of the various instruments used in measuring fuel temperature and moisture, see the "Remote Measurements" brochure.
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Both the 26601 10-Hour Fuel Moisture Stick (used with the CS506-L) and the CS205 10-Hour Fuel Temperature Stick (used with the 107-L) can be easily replaced in the field with a Phillips screwdriver and an adjustable wrench.
The dowels should be replaced each spring; more frequent replacements may be required in some environments. The more wet/dry cycles the dowels experience, the more frequently they will need to be replaced.