Aspirated Radiation Shield
Aspirated Radiation Shield, RADShield-2TM minimizes the effects of solar heating on air temperature sensors. Heated air is drawn away from the temperature sensor and discharged at the other end of the mounting pipe.
Aspirated Radiation Shield, RADShield-2TM can be used with the users current temperature sensor, such as a thermistor. The integrated fan minimizes the effects of solar heating when wind speeds are low. RADShield-2 can be used for weather instruments or indoor applications, such as HVAC, greenhouse controls, or monitoring of production environments.
Other aspiration systems discharge the air out of the top of the sensor, leading to a risk of recirculating the same air. RADShield-2 uses the mounting pipe as a duct to exhaust the air away from the sensing elements.
RADShield-2 may be used with our own sensors or is available as an option or upgrade for Dyacon TPH-1 and TPH-2 sensors. When used with Dyacon control modules on MS-100 series weather stations, RADShield-2 utilizes Smart-FanTM technology to run the fan only when solar radiation is detected. This allows the aspirator to run efficiently with on solar powered stations.
- 12 VDC power (24 VDC option)
- Ball-bearing, brushless fan
- 7800 rpm, 9 CFM
- Smart-FanTM (Dyacon control module required.)
Please note that this is a radiation shield only and does not include a sensor. Refer to TPH-1 or TPH-2 for Dyacon sensors that include the radiation shield and sensor.
Accessories and Options
TPH-1 Mounting Kit
THP Mounting Kit is used to mount the Dyacon radiation shield to a flat surface or vertical pole.
Temperature / Pressure / Humidity – Modbus
TPH‑1TM is a digital output air sensor that measures air temperature, relative humidity, and barometric pressure. TPH‑1 uses the Modbus protocol to connect to computers, programmable logic controllers (PLCs), and some data loggers.