The Model Trimaran-H20 and the Model Trimaran-SEA are automated, real-time, ultra-low-level tritium in water monitors which include a sample enrichment feature making this our most sensitive tritium in water monitor.
An electrolytic hydrogen gas separator is used to separate the input water into hydrogen gas (tritium) and oxygen. The oxygen is diluted and released safely while the hydrogen gas containing tritium is cycled iteratively through a sample enrichment loop, thereby increasing the concentration of the tritium. After sufficient sample enrichment, the tritium sample is mixed with P-10 gas and measured by an ultra-sensitive gas proportional counter. A second, sealed proportional counter eliminates the effects from external gamma fields, and 1” lead shielding around the counter tubes further reduces background gamma and improves the statistical signal to noise ratio to enhance sensitivity.
The Trimaran is designed to measure below the US EPA’s drinking water limit of 740 Bq/L or 20,000 pCi/L. The sensitivity of the Trimaran is 0.5 kBq/L or 14,000 pCi/L in 8 hours or less.
The Trimaran-H20 is designed for measuring freshwater, whereas the Trimaran-SEA is designed for seawater. The Trimaran-SEA includes additional prefiltration (including RO) to ensure that the water is clean before it is introduced to the system.
|MEASUREMENT RANGE||4.5 Decades; Optional 6 Decades|
|MINIMUM DETECTABLE LIMIT||500 Bq/L (0.014 μCi/L) in 8 hours or less|
|DISPLAY||LCD Color Touch Screen; units of display user-settable|
(i.e., kBq/L, μCi/L)
|RESPONSE RATE||See Sensitivity Response Chart on Page 1|
|MEASUREMENT METHOD||Gas flow proportional counters|
|PROPORTIONAL COUNTERS||Dual copper clad acrylic counter tubes, 2 liter active volume, |
2.5 liter wetted volume, 0.001 inch tungsten collector anode
|COUNTER GAS||P-10 or “MAGIC” gas for high performance|
Flow rate 250 cc/min, typical
|MEASUREMENT ALARM SET POINT||Can be manually adjusted|
|DATA RECORDING/OUTPUT||Insertable USB flash drive; Data communication via TCP/IP. |
Standard data output is USB & RJ-45
|SAMPLING/MIXING SYSTEM||See diagram 1 on page 5.|
|WASTE MANAGEMENT||Unused water output lines with Swagelok® fittings are provided, |
user to provide recycling system or waste collection system.
|TEMPERATURE||0°C to 50°C|
|HUMIDITY||0 to 95 % R. H.|
|SEISMIC||Withstands modest shock|
|ELECTRICAL||Power 110/230VAC, 5A|
|MECHANICAL||Self contained, mounted on a steel frame with lifting eyes for easy transport.|
|DIMENSIONS||23.6in x 23.6in x 84.0in
(600mm x 600mm x 2133mm)
|WEIGHT||1100 lb (500 kg)|
|SAMPLE ENRICHMENT CABINET||31.5in x 23.6in x 84.0in
(800mm x 600mm x 2133mm)