仕様
アラーム/不合格リレーSignal horn: OUTO
Malfunction: OUT1
Alarm 1 (pre-Alarm): OUT2
Alarm 2: (main Alarm): OUT3
Measurement in progress: OUT4
接続USB port, ethernet port, USB stick
概要FHT 1702 L Mobile Iodine Monitor
デジタル入力Push button “Ack alarm”: IN0
Signal “Air flow ok”: IN1
Signal “Heating ok”: IN2
Reserved: IN3
周囲温度Operating: Min. +15°C; Max. +45°C
使用対象(アプリケーション)Iodine Monitoring
検出限界Minimum Detectable Activity Concentration (MDAC) provided according to ISO 11929
<1 Bq/m3 related to 131I with t1 = 5 min, t2 = 30 min at a constant dose rate level of 100 nSv/h
<40 Bq/m3 related to 131I with t1 = 5 min, t2 = 30 min at a constant dose rate level of 100 nSv/h (60Co)
検出器効率0.05 Cps/Bq
検出器タイプNaI
放射線タイプ131I
ディスプレイタイプWindows-based touch screen panel PC
効率Typ. 0.05 Cps/Bq; 131I
環境条件Permitted temp. gradient: Max: 15 K/h
Sampled air intake temperature: Min. -10°C, Max. +45°C with optional heating on
Barometric pressure: Min. 950, Max. 1050 hPa
Rel. humidity of sampled air at intake: Min. 20, Max. 80 % R.H. non-condensing
フィルタータイプGlass fiber GF10, grade H12 for prevention of contamination and pollution of the iodine cartridge by aerosols
Air intake flange: DN 16; KF
Air intake filter diameter: 50 mm; fiber glass GF 10
Filter cartridge diameter: 58 mm; charcoal
Cartridge service life: several weeks depending on the iodine conc. of the ambient air
Cartridge activity load: 1 MBq
入力6 counters in total
4 counters are used for the three energy windows: Background energy window left; iodine energy window; background energy window right
製品タイプIodine Monitor
測定範囲Min. 100; Max. 105 Bq/m3 related to 60 minutes sampling time
Measuring Principle: Fixed filter monitor for the detection of the 364 keV line of 131I by a NaI detector. Compensation of higher energy gamma lines is realized with the help of online background subtraction by the trapezoid method. A built-in lutetium adapter is used for continuous peak-stabilization.
電力消費量300 VA
ポンプRotary vane vacuum pump; oil-free; air-cooled
Air flow rate: typ. 4, Max. 5 m3/h
Supply voltage: 230V AC, single phase
Supply frequency: 50 Hz
Power consumption: 250 VA
Protection class: IP54
Noise level: 68 dB at 1 m distance
Maintence: 2000 operation hours
分解能10% for 137 Cs
感度10 Cps/μSvH-1 without compensation
遮へいタイプ25 mm, lead in all directions
Omni-directional lead shielding made of ring elements above the filter drawer with top lid. A built-in lutetium adapter is used for continuous peak-stabilization is integrated in the lead shield.
幅(ヤードポンド法)18.9 in. without packing
幅(メートル法)48 cm (Without Packing)
高さ(ヤードポンド法)51.2 in. without packing
高さ(メートル法)130 cm (Without Packing)
奥行き(ヤードポンド法)25.6 in. without packing
奥行き(メートル法)65 cm without packing
Diameter (Metric) Detector Window50.8 mm
重量 (ヤードポンド法)187 lb. net, without packing
重量(メートル法)85 kg (net, without packing)
電気的要件Operating voltage: 900 V
Unit SizeEach