适用于空气质量监测应用领域
概览
43347-L 是一款高精度的RTD温度探头，经常为空气质量应用领域提供温度差测量。特别是，将其置于43502扇形防辐射罩内，可极大程度的减少辐射干扰。
优势与特点
- 使用热敏电阻元件进行超高精确的空气温度测量
- 特别适合空气质量应用
- 43502风扇式强制通风防辐射罩减小了辐射误差，提供更精确的测量
- 适合温度差测量，用于计算大气稳定级别
图像
相似产品
技术说明
为测量温度差，一个43347探头可安装在43502防护罩内，一同安装在UT20或UT30塔的桅杆上，另一个装有43347探头的43502防护罩安装在塔的2m处。可以得到两个测量高度的温度差，根据EPA的规定，继而判定大气稳定度。
如果不要求强制风扇通风的话，43347亦可置于41003-5 自然通风罩内，不过需要其它的硬件设备（请参阅订购信息和兼容性要求）。
标准的43347探头的RTD 误差为 ±0.3°C。如对精度要求更高，可选购带有三点校准的探头，其误差仅有±0.1°C。
产品规格
| Sensor Description | 1000 Ω Platinum RTD |
| Measurement Description | Temperature |
| Signal Type/Output | Analog voltage |
| Operating Temperature Range | ±50°C |
| Range | ±50°C |
| Accuracy | ±0.3°C at 0°C; ±0.1°C with NIST calibration |
| Temperature Coefficient | 0.00375 Ω/Ω °C |
| Radiation Error / Ambient Temperature | < 0.2°C RMS at 1000 W/m2 intensity (when housed in the 43502 shield) |
| Radiation Error / Delta T | < 0.05°C RMS with 43502 shields equally exposed (when housed in the 43502 shield) |
| Stainless-Steel Sheath Diameter | 0.478 cm (0.188 in.) |
| Stainless-Steel Sheath Length | 6.12 cm (2.41 in.) |
| Probe Tip Length | 10.08 cm (3.97 in.) stainless-steel sheath and molded plastic |
| Length | 17.8 cm (7 in.) |
| Weight | 0.54 kg (1.2 lb) |
兼容性
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
数据采集器
| Product | Compatible | Note |
|---|---|---|
| CR1000X | ||
| CR300 | ||
| CR3000 (retired) | ||
| CR310 | ||
| CR350 | ||
| CR6 | ||
| CR800 (retired) | ||
| CR850 (retired) |
Additional Compatibility Information
Mounting
The 43347 is typically housed in a 43502 Aspirated Radiation Shield to provide delta-temperature measurements for air quality applications. Delta temperature measurements use two 43502s attached at different heights.
The 41003-5 naturally aspirated radiation shield can serve as an alternative to the 43502 if a fan-driven aspiration shield is not required. The 27251 split nut plug must be used.
Both the 43502 and 41003-5 can be attached to either a mast or crossarm.
Data Logger Considerations
The 43347 comes in two versions—the "IX" version and the "VX" version. The "IX" version connects to a current excitation channel; only the CR3000 and CR5000 are compatible with the -IX.
The "VX" version connects directly to voltage excitation channels. All compatible data loggers can use the VX version.