Radon Measuring Instrument With High Sensitivity, Easy To Use And
USB Transmission Interface FJ-2500
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
Main parameter index
1.Sensitivity: ≥9cps/*Bq•m-3]
2.Background counting rate: ≤0.3cps
3.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
4.Measurement repeatability error: ≤5% (Radon room concentration
2000Bq/m3, ambient humidity 65%, temperature 25℃).
5.Long-term stability (8h) error: ≤10%
6.Power supply: Lithium-ion battery or alternating current, battery
power supply can work continuously for 30h
7.Working environment: temperature: -10℃～+40℃; humidity: relative
humidity ≤90% (+40℃)
8.Detector: zinc sulfide ZnS (Ag)
9.Data storage: 200,000 records can be store
10Operation mode: single point detection or continuous monitoring
11.Display: LCD liquid crystal display
12.Air extraction method: active pump suction type (flow 2L/min)
13.Measuring time: air radon: 1-30min; soil radon: 1-10min Radon
extraction rate: 1-30min; radon in water: 1-30min
14.Print data: date, time, point number and test results
| 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 store |
| 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 |
