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Testermeter- NRL-III Online Radon Monitor
Technical Parameter
Detection items: Rn-222 (Radon) Detector: PIPS semiconductor detector Measuring range: Radon in Air : 1~1000000Bq/m³ Measurement method: alpha energy spectrum measurement Temperature: -10 ~ 50℃, accuracy ±1℃ Humidity: relative humidity ≤90%, accuracy ±3%RH Measurement Combined Uncertainty: ≤20% (when the radon concentration is not less than 200Bq/m³) Measurement Time: 15-60min, can be set Data Display: Color LCD Storage: Flash (data in 1month) Communication: RS485 Power: ≤ 60W Host size: 280X220X145mm Weight: about 3kg |
Working Conditions
Working Environment: Temperature: 0°C~+45°C Relative humidity: not more than 90% (40 °C) Storage Environment: Temperature: -20°C~+55°C Relative humidity: not more than 90% (40 °C). Power supply: AC 220V±10% 50Hz±1Hz, Power ≤60W |
Electrical Interface
(1) The power supply of the radon meter adopts a trigeminal plug-in, and the points are defined as follows: 1-L line, 2-N line, 3-PE. (2) 485 communication interface. The measurement data of this instrument can be transmitted to other devices via RS485, the communication protocol is as follows: 1) The data transmission protocol conforms to the universal serial data communication protocol: --Check digit: NONE --Data bits: 8 --Stop bit: 1 2) A total of 23 bytes of data are sent, all of which are ASCII codes, which are: --Year, month and day, 6 bytes, each occupying two bytes; --Radon concentration, 5 bytes; unit Bq/m³; --Uncertainty, 4 bytes; unit Bq/m³; --Measurement period, 2 bytes; the unit is minutes. 3) Other DB9 socket, 3 pin is A, 8 pin is B. |
