适合无人值守应用
概览
EE181 是一款空气温度和相对湿度RH探头，适合无人值守的应用。RH元件的专有涂层使其免受灰尘、盐或其它污染物影响，延长使用寿命。采用1000Ω的PRT铂电阻测量空气温度：-40° 至 +60°C。 EE181 建议每年校准一次。
优势与特点
- 适合无人值守的应用
- 坚固可靠
- 良好的稳定性
- 工作温度范围广
- 用户可自行清洁
- 紧凑易于更换
- 低功耗
- 兼容大多数 Campbell Scientific 数据采集器
图像
产品规格
| Measurement Description | Temperature, relative humidity |
| Signal Type/Output | Analog voltage |
| Supply Voltage | 7 to 30 Vdc (typically powered by the datalogger’s 12 V supply) |
| Average Current Consumption | < 1.2 mA |
| Filter Description | 30 μm pore size, stainless-steel mesh |
| Startup Time | 2 s |
| Housing Body Material | Plastic |
| Housing Classification | IP65 |
| Field Replaceable Chip or Recalibrate | Recalibrate |
| Operating Temperature Range | -40° to +60°C |
| Sensor Diameter | 2.1 cm (0.83 in.) |
| Length | 16.0 cm (6.3 in.) |
| Weight | 290 g (10.2 oz) with 5 m cable |
Air Temperature |
|
| Sensing Element | 1000 Ω Platinum Resistance Thermometer (PRT) |
| Measurement Range | -40° to +60°C |
| Storage Temperature Range | -40° to +80°C |
| Output Signal Range | 0 to 1 Vdc |
| Accuracy | ±0.2°C (at +23°C) |
Relative Humidity |
|
| Sensing Element | Capacitance |
| Measurement Range | 0 to 100% RH (non-condensing) |
| Output Signal Range | 0 to 1 Vdc |
| Temperature Dependence | Typically 0.03% RH/°C |
| Accuracy |
|
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
Sensor Mounts
When exposed to sunlight, the EE181 must be housed in a 10-plate solar radiation shield. Campbell Scientific recommends the MetSpec RAD10E, which uses a double-louvered design that offers improved sensor protection from driving rain, snow, and insect intrusion. This shield also has lower self-heating in bright sunlight combined with higher temperatures (> 24°C [~75°F]) and low wind speeds (< 2 m s-1 [~4.5 mph]), giving a better measurement.
The EE181 will work with R. M. Young 10-plate radiation shields (41003-5 or 41003-5A), but these shields require a special adapter (pn 28415) to accommodate the sensor girth.
The RAD10E and 41003-5 attach to a crossarm, mast, or user-supplied pipe with a 2.5 to 5.3 cm (1.0 to 2.1 in.) outer diameter. The 41003-5A radiation shield attaches to a CM500-series pole or a user-supplied pole with a 5.1 cm (2.4 in.) outer diameter.
案例研究
The Utah Geological Survey, supported by the Utah Division of Water Rights, has constructed a......阅读更多
As part of the United Nations Development Programme's (UNDP) Crisis Prevention and Resilience Building component,......阅读更多