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�˚⣺2351 �l(f��)���r�g��2014-12-25 10:22 �P�I�~������ֵ�Ԅ�ˮ��백O(ji��n)�yϵ�y(t��ng) TRIMARAN��H20 �a(ch��n)Ʒ��̖��TRIMARAN��H20 �����I���̏U̎�� �a(ch��n)Ʒ�r�� |
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TRIMARAN—H20����ֵ�Ԅ�ˮ��백O(ji��n)�yϵ�y(t��ng)�Ę�Ʒ��ݔ��ܾ��������_103 kPa.,��ͨ�^�����{��(ji��)�y�������pС��2-3psi��ÿ���{��(ji��)�y����һ���_��100 kPa�ĉ���ጷ��y�����ϵ�y(t��ng)�еĉ����IJ������^100 kPa,,���@�Ӳ���������ȫ��Ҳʹ���@��x���ɞ�6�����O��,��
FULLY INTEGRATED PACKAGE
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Model Trimaran-H20 is a completely self-contained instrument for real time observation of tritium concentra-tion in water. The instrument is mounted inside of the 200cm tall steel enclosure with reinforced anchoring feet and locked access.
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P-10 gas (90% Argon, 10% Methane, non-combustible) cylinder is connected to the unit externally. This quantity is sufficient for 60 days of continuous operation.
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The main subassemblies are:
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1. Sample water input lines
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2. External cooling loop in case of hot samples
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3. PRV and RV system with manifolds
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4. Water purification system (oil-in-water and micron filter)
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5. Sample water pump
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6. Detection module
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7. Data acquisition electronics module
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8. System control module
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9. Waste water output line, RV output line and sample bypass output lines
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10. Pre-filter
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11. Sample Enrichment assembly
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PLC CONTROL
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Sampling of input lines and control of alarms and pumps is done by PLC unit placed inside of the System Control Module. There is an alarm provided in case of PLC failure as well as manual
override so that the operation can be continued manually until PLC is replaced. Manual operation is a backup system; the unit normally operates in automatic mode.
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ROUTINE MAINTENANCE
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Scheduled maintenance of consumables is required. P-10 gas cylinder needs to be replenished every 2 months and sample water filters need to be replaced. Also, periodic check of the efficiency and background is recommended if there is a possibility of increased background contamination and due to standard life cycle of electronics components.
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ANNUAL INSPECTION AND SERVICE
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It is recommended that the instrument be inspected and serviced on an annual basis to ensure continuing trouble free operation. All components of the instrument should be inspected and instrument re-calibrated.
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REPAIR
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Equipment failures of a minor nature can be repaired under local supervision by the operator of the equipment. When necessary, the manufacturer (Overhoff Technology Corporation (OTC)), or its agents can dispatch service personnel for quick remediate action.
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DOCUMENTATION
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All OTC equipment is accompanied by complete documentation, which includes the following:
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1. User and Maintenance Manual that contains:
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a. Theory of operation
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b. Installation instructions
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c. Operation instructions
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d. Calibration procedure
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e. Suggested maintenance
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f. Repair instructions
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g. Drawings, diagrams and schematics
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Training will be provided by the manufacturer, at this factory, free of charge. Assistance with commissioning is also available by the manufacturer (OTC).
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ADVANTAGES OF PROPORTIONAL COUNTING SYSTEM VERSUS LIQUID SCINTILLATION
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Until recently, the only detectors capable of measuring very low levels of tritium in water were Liquid Scintillation Counting (LSC) based. However, the LSC approach has some obvious disadvantages, such as: the LSC fluid must be constantly refilled at a significant cost in labor, money, and space; LSC fluid is also hazardous material and mixing with tritium results in ’liquid mixed waste,’ which must be carefully stored, transported and disposed of.
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By utilizing proportional counting technology, the user only has to acquire a compact standard steel tank of proportional gas, which will last for more than a month and is available from a variety of suppliers. The P-10 counting gas is 90% Argon and 10% Methane, and is not toxic or combustible. Measurement via this method achieves same or better low-end sensitivity, without having to deal with LSC fluid and waste.
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SAMPLE ENRICHMENT
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With LSC and proportional counting detectors, Overhoff has pushed tritium detection to the most sensitive limit. However, samples can be so dilute, even with large multi-liter detectors, there are not enough disintegrations per second for good measurements. This issue is overcome by concentrating or enriching the sample,. This may be accomplished using iterative processes to concentrate the tritium in water using phase change or other physical differences (not chemical processes since 1H, 2H, and 3H are chemically identical.) Overhoff scientists have developed their own iterative sample enrichment cycle, creating system sensitivities far beyond other automated flow-through systems.
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MODEL TRIMARAN-H20 TECHNICAL SPECIFICATION
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MEASUREMENT RANGE: 0 kBq/L – 130kBq/L
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RESOLUTION (SENSITIVITY): 1.0kBq/L
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MINIMUM DETECTABLE LIMIT: 40 Bq/L (in 1 Week) at confidence level of 95%
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DISPLAY: LCD Color Touch Screen; units of display user- settable
(i.e., pCi/cc, MBq/m3, MPCa, μCi/m3)
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RESPONSE RATE: See Sensitivity Response Chart on Page 1
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MEASUREMENT METHOD: Gas flow proportional counters
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PROPORTIONAL COUNTERS: Dual copper clad acrylic counter tubes, 2 liter active volume,
2.5 liter wetted volume, 0.001 inch tungsten collector anode
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COUNTER GAS: P-10 or “MAGIC” gas for high performance
Flow rate 250 cc/min, typical
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MEASUREMENT ALARM
SET POINT: Can be manually adjusted
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DATA RECORDING/OUTPUT: Insertable USB flash drive; Data communication via TCP/IP.
Standard data output is USB & RJ-45
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SAMPLING/MIXING SYSTEM: See diagram 1 on page 5.
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WASTE MANAGEMENT: Unused water output lines with Swagelok® fittings are
provided, user to provide recycling system or waste collection
system.
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TEMPERATURE: 0°C to 50°C
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HUMIDITY: 0 to 95 % R. H.
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SEISMIC: Withstands modest shock
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ELECTRICAL: Power 110/230VAC, 5A
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MECHANICAL: Self-contained, mounted on a steel frame with lifting eyes for
easy transport.
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DIMENSIONS: 31.5in x 23.6in x 84.0in (800mm x 600mm x 2133mm)
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WEIGHT: 1100 lb (500 kg)
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Tel/Fax��010-57118919��ֱ���� 010-51266093�����C�� 18001279800
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E-mail: [email protected]