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。
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。
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) |
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
Product | Compatible | Note |
---|---|---|
CR1000X (retired) | ||
CR300 (retired) | ||
CR3000 (retired) | ||
CR310 | ||
CR350 | ||
CR6 | ||
CR800 (retired) | ||
CR850 (retired) |
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.
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.