FJ-2500 LCD Liquid Crystal Display Environmental Radon Meter

FJ-2500 LCD Liquid Crystal Display Environmental Radon Meter

Overview

The FJ-2500 radon meter is used in environmental monitoring, sanitation, construction engineering, home improvement, geological prospecting, seismic monitoring, scientific research and other fields. Used to detect radon in the air, radon in the soil, radon in water and radon extraction rate. The instrument complies with the measurement principles and requirements of GB50325-2001 "Code for Indoor Environmental Pollution Control of Civil Construction Engineering" and GB/T16147-1995 "Measurement Method of Scintillation Bottle for Radon Concentration in Air".

Feature

 Small size, light weight, easy to carry

 Human-computer interaction interface, convenient operation

 High sensitivity, low power consumption, using the most classic scintillation radon method

 USB data transmission interface, TCP/IP, RS485, RS232, industrial wireless communication methods are available

Packing List

Main parameter index

 Sensitivity: ≥9cps/[Bq•m-3]

 Background counting rate: ≤0.3cps

 Measuring range:

Ambient air radon: (3～100000000) Bq/m³; soil radon: (300～400000) Bq/m3

Radon extraction rate: (0.001～10.000) Bq/[m2•s]; radon in water: (0.003～100) Bq/L

 Measurement repeatability error: ≤5% (Radon room concentration 2000Bq/m3, ambient humidity 65%, temperature 25℃).

 Long-term stability (8h) error: ≤10%

 Power supply: Lithium-ion battery or alternating current, battery power supply can work continuously for 30h

 Working environment: temperature: -10℃～+40℃; humidity: relative humidity ≤90% (+40℃)

 Detector: zinc sulfide ZnS (Ag)

 Data storage: 200,000 records can be stored

 Operation mode: single point detection or continuous monitoring

 Display: LCD liquid crystal display

 Air extraction method: active pump suction type (flow 2L/min)

 Measuring time: air radon: 1-30min; soil radon: 1-10min

Radon extraction rate: 1-30min; radon in water: 1-30min

 Print data: date, time, point number and test results