射线巡测仪的特点
l 采用高效的GM探测器
l 声响频率指示放射性强度
l 可设置剂量率报警阈值
l 超低功耗设计
l 全中文操作界面
l 单位显示CPM、CPS、μSv/h
l 超阈值报警 l 电池失效报警
l 可存储400组历史数据
射线巡测仪的技术指标
l 测量范围：剂量率0.01—500 uSv/h
l 探 测 器：外置式 薄窗型GM
l 灵 敏 度：≥500 CPM/μSv/h
l 仪器本底：每分钟计数≤60 CPM
l 相对基本误差：≤15%
l 供电电源：3节普通5号电池或充电电池
l 功 耗：整机功耗约≤100mW
l 温度范围：-15℃～50℃
l 湿度范围：相对湿度≤90%（40℃）
l 尺寸重量：主机0.5kg；200×100×30mm 探头：Φ40×300mm
Monitor4射线巡测仪
产品描述：
Monitor 4 & 4EC Handheld Radiation Alert? Detector
Same Monitor 4. New ergonomic design. The M4 and M4EC are compact, general purpose survey meters capable of detecting alpha, beta, gamma, and x-rays over 3 selectable ranges. A red count light flashes and a beep sounds with each event detected. The Monitor 4EC offers a more linear reading for gamma and x-rays (above 40 keV). Click here for Original Monitor 4. Click here for USB Model.
Specifications
Detector
Monitor 4: Halogen-quenched uncompensated GM tube with thin mica window 1.5-2.0 mg/cm2 thick.
Monitor 4EC: Halogen-quenched GM tube, energy compensated sidewall 2mm tin filter. Thin mica window 1.5-2.0 mg/cm2 thick.
Display
Analog Meter holds full scale in fields as high as 100X maximum reading. CPM/mR/hr scale default. Optional SI Meter Scale option available upon request.
Energy Sensitivity
M4: Detects alpha down to 2.5 MeV; typical detection efficiency at 3.6 MeV > 80%. Detects beta at 50 keV with 35% efficiency. Detects beta at 150 keV with 75% efficiency. Detects gamma and x-rays down to 10 keV through the window, 40 keV minimum through the sidewall. Normal background is approximately 10-20 CPM.
M4EC: is the Same as Monitor 4 except the energy response for gamma and x-rays through the detector sidewall is flat within +61% or -26% over the range of 40 keV to 100 keV, and within +35% or -17% over the range of 100 keV to 1.3 MeV.
技术参数：Gamma Sensitivity: | Operating Range |
1000 CPM/mR/hr (referenced to Cs-137)
Energy Sensitivity for the 4EC is the Same as Monitor 4 except the energy response for gamma and x-rays through the detector sidewall is flat within +61% or -26% over the range of 40 keV to 100 keV, and within +35% or -17% over the range of 100 keV to 1.3 MeV. | 0-.5, 0-5, 0-50 mR/hr
0-500, 0-5,000, 0-50,000 CPM or 0-500 μSv/hr
0-50 mR/hr.
Range Switch
X1, X10, X100, Battery Check.
Accuracy
Typically ±15% of reading (referenced to Cs-137) | ? |
Audio
Internally mounted beeper (can be turned
off for silent operation).
Power Requirements
9-volt alkaline battery up to 2,000 hrs at
normal background
Temperature Range
-20° C to 55° C (-4° F to 131° F).
Weight
M4: 223.9 grams (7.9 oz) without battery
M4EC: 245.7 grams (8.7 oz) without battery
Outputs
3.5 mm headphone jack with pulse out.
Size
210 x 70 x 48 mm (8.25 x 2.75 x 1.875 in.)
Includes
Carrying Case w/ Belt Clip
Accessories
Observer Software, SI Meter Option,
Mini-USB Option (Available Upon Request. USB Cable included.)
Warranty
1 year limited warranty
Monitor 4 Kits
相关仪器