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Thermo Scientific™
FHT 1702 Iodine Monitor
Protect employees virtually anywhere in the nuclear power plant with early, automatic warning of gaseous iodine activity.
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| Référence | Description | Type de radiation |
|---|---|---|
| FHT1702S-125 | Moniteur iode fixe | 131 I |
| 4250310 | Moniteur iode mobile | 131 I |
Référence FHT1702S-125
Prix (EUR)
-
Description:
Moniteur iode fixe
Type de radiation:
131 I
Inspect for gaseous iodine activity virtually anywhere in the nuclear power plant with the Thermo Scientific™ FHT 1702 Iodine Monitor. Designed for various air contamination monitoring applications as well as for immission and emission measurements, the FHT device monitors gaseous iodine activity from first measurement to present activity concentration. Depending on the measuring application, the total iodine activity can be detected. A second energy window with thresholds above and below the iodine window measures the background count rate (trapezoid method) in parallel to the sampling.
The FHT 1702 Iodine Monitor comes in fixed units and mobile units for easy transport.
- Maintenance-free and low-noise gas ring vacuum pump
- User-friendly, maintenance-free long term operation
- For use in ambient air monitoring networks or stack emissions monitoring systems
- Excellent selectivity against other iodine isotopes or interfering noble gases
- Direct read-out of measured values in physical units of Bq/m3
- Aerosol filter heated air inlet for optimized iodine retention
- Menu-driven calibration procedure with complete track record of efficiency data.
Spécifications
Relais d’alarme / panneSignal horn: OUTO
Malfunction: OUT1
Alarm 1 (pre-Alarm): OUT2
Alarm 2: (main Alarm): OUT3
Measurement in progress: OUT4
Malfunction: OUT1
Alarm 1 (pre-Alarm): OUT2
Alarm 2: (main Alarm): OUT3
Measurement in progress: OUT4
Température ambianteOperating: Min. +15°C; Max. +45°C
Niveau du fondTyp. 0.2 cps in compensation window, amb. Dose rate level approx. 100nSv/h
0.07 cps in iodine window
0.07 cps in iodine window
RaccordementsUSB port, ethernet port, USB stick
Profondeur (impériale)31.5 in. without packing
Profondeur (métrique)80 cm without packing
DescriptionMoniteur iode fixe
Efficacité du détecteur0.093 Cps/Bq
Entrées logiquesPush button “Ack alarm”: IN0
Signal “Air flow ok”: IN1
Signal “Heating ok”: IN2
Reserved: IN3
Signal “Air flow ok”: IN1
Signal “Heating ok”: IN2
Reserved: IN3
Type d’affichageWindows-based touch screen panel PC
EfficacitéTyp. 0.093 cps/Bq125I
Alimentation électriqueOperating voltage: 900 V
Conditions environnementalesPermitted temp. gradient: Max: 15 K/h
Sampled air intake temperature: Min. -10°C, Max. +45°C with optional heating on
Barometric pressure: Min. 500, Max. 1050 hPa
Rel. humidity of sampled air at intake: Min. 20, Max. 80 % R.H. non-condensing
Sampled air intake temperature: Min. -10°C, Max. +45°C with optional heating on
Barometric pressure: Min. 500, Max. 1050 hPa
Rel. humidity of sampled air at intake: Min. 20, Max. 80 % R.H. non-condensing
Type de filtreGlass 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; S grade
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
Air intake flange: DN 16; KF
Air intake filter diameter: 50 mm; S grade
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
Hauteur (impériale)63 in. without packing
Entrées6 counters in total
4 counters are used for the three energy windows: Background energy window left; iodine energy window; background energy window right
4 counters are used for the three energy windows: Background energy window left; iodine energy window; background energy window right
Plages de mesureMin. 100; Max. 105 Bq/m3 related to 60 minutes sampling time
Measuring Principle: The sample air is passed through a 2 ¼ “ standard filter cartridge filled with iodine adsorbent. Elementary as well as organically bound iodine are precipitated. The filter cartridge is manually exchanged. A NaI scintillation detector located in the axis of the filter cartridge continuously measures the low-energy gamma quanta emitted by the accumulated I-125 activity. The pulse height is discriminated by an appropriately set iodine window.
Measuring Principle: The sample air is passed through a 2 ¼ “ standard filter cartridge filled with iodine adsorbent. Elementary as well as organically bound iodine are precipitated. The filter cartridge is manually exchanged. A NaI scintillation detector located in the axis of the filter cartridge continuously measures the low-energy gamma quanta emitted by the accumulated I-125 activity. The pulse height is discriminated by an appropriately set iodine window.
Consommation électrique300 VA
PompeAir 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
Maintenance: 6 months
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
Maintenance: 6 months
Résolution10% for 137 Cs
Type de blindage25 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.
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.
Poids (impériale)375 lb. net, without packling
Largeur (impériale)23.6 in. without packing
Largeur (métrique)60 cm (Without Packing)
Limites de détectionMinimum Detectable Activity Concentration (MDAC) provided according to ISO 11929
<0.6 Bq/m3 related to 125I with t1 = 5 min, t2 = 30 min. at a constant dose rate level of 100 nSv/h
<0.6 Bq/m3 related to 125I with t1 = 5 min, t2 = 30 min. at a constant dose rate level of 100 nSv/h
Type de détecteurNaI
Diameter (Metric) Detector Window50.8 mm
À utiliser avec (application)Iodine Monitoring
Hauteur (métrique)160 cm (Without Packing)
Type de produitIodine Monitor
Type de radiation131 I
Poids (métrique)170 kg (net, without packing)
Unit SizeEach