Overhoff Technology

  Features: Ultra-reliable tritium air sampler Includes mass flow air control for consistent, precise sampling Collects both HT and HTO with cascaded vials to ensure virtually 100% collection efficiency Thermal oxidizer with a temperature indicator to convert HT to HTO, regulated range 455 – 475 °C Standard flow rate sensitivity for  3 H: 10 -9  µCi/ml (10 -9  Ci/m 3 ) for 7-day period at 100 ml/min High flow rate sensitivity for  3 H: 10 -9  µCi/ml (10 -9  Ci/m 3 ) for 24-hour period at 1 L/min Description: The Model TASC-HT-HTO is a high-quality and reliable passive tritium in air sampler.  Airborne tritium in the sample stream is continuously collected in vials filled with a liquid collection medium (water or glyocol).  The amount trapped increases linearly with elapsed time.  At regular intervals, the sampling is stopped, the contents removed and assayed using liquid scintillation counting to determine the amount of radioactivity co...

  The Overhoff Gas Calibrator , P/N CALG, is supplied with all the components needed to accurately calibrate your OTC tritium monitors, including: pressure regulator, piping manifold, gages, valves, metering volume, and an optional lecture bottle containing tritium calibration gas. Calibration of a tritium monitor is performed by injecting a known quantity of tritiated gas into the tritium monitor ionization chamber of a known volume in order to fill the chamber with a calculated activity. The Overhoff Tritium Gas Calibrator consists of : Optional cylinder containing a tritiated gas mixture at high pressure.  Shipped separately to conform with NRC requirements. A pressure regulator to reduce the cylinder pressure to a low and constant value. A metering volume of accurate dimension. A piping manifold with 2 hose connections. All components are mounted on a flat plate for rigidity and easy of storage. Visit our product:  https://overhoff.com/product/tritium-gas-calibrator-p...

This lecture bottle contains <1mCi of tritium calibration gas and carrier gas contained in steel DOT 3E 1800 lecture bottle at a nominal pressure of 550 psig ±10% (maximum pressure 1800 psi).  Furnished with a brass shut-off valve and CGA-180 fitting. The lecture bottle is a secondary standard prepared by filling it with a sample of tritium gas from a larger supply cylinder.  The lecture bottle is backfilled with nitrogen gas to dilute the concentration and/or increase the pressure. The tritium concentration of the gas inside the lecture bottle is determined as compared to a primary standard traceable to NIST.  Measurements are made with a tritium in air monitor used as a reference standard. Overhoff maintains permanent custody of the reference monitor, which is reserved solely for tritium gas calibration.  The data collected are used to assign an average concentration value to the lecture bottle. A calibration certificate is provided. Choice of tritium concentr...

Founded in 1972, Overhoff Technology designs and manufactures high quality tritium monitoring instrumentation and has earned a reputation as a world-leading tritium monitor manufacturer.  Our 49 years of experience building tritium monitors is reflected in our products which have been refined to excel in reliability and performance.  The key values established by founder, Dr. Mario W. Overhoff (1928-2005), continue to this day.  In 2007, Overhoff was purchased by a friend of Dr. Overhoff, Robert Goldstein, CEO of Technical Associates.  Today, Overhoff and Technical Associates are subsidiaries of US Nuclear Corporation.  Overhoff offers a full line of tritium monitoring instrumentation sold world-wide and serving nuclear power plants, pharmaceutical and research labs, military, government, and more.  At Overhoff, product development has always been a key aspect of our business.  If you can’t seem to find a product that meets your needs, we can design a ...

  Features: NEMA-12 enclosure Plate-out proof wire-grid electrodes eliminate “background” zero drift Gamma compensation (2L or 4L) Range: 1 to 19,999 µCi/m 3 , 0.1 to 1,999.9 µCi/m 3 , 0.01 to 199.99 MBq/m 3 ±5% accuracy over the entire measurement range Audible and visual alarm indicators for signal level, low flow, and malfunction Alpha pulse suppression, radon rejection Long-term zero stable, span calibration is permanently stable due to special electrometer design Options: HTO only measurement , noble gas compensation Upgraded heavy-duty pump system Mounted on wheeled stainless-steel cart for portability Description: The Model 357BW is a single-range ionization chamber tritium in air monitor contained in a NEMA-12 enclosure suitable for permanent installation and continuous duty.  It is designed for the monitoring of rooms, glove boxes, fume hoods, exhaust stacks, as well as process piping.  The enclosure has a hinged door with a tempered glass window and is also doub...

  Features: Stores all instrument data to a database ( Microsoft Access ) at user-definable intervals Displays all instrument data in table and graphical form (summary and real-time) Limit checks incoming data of all types; each instrument can have its own set of limits of desire Displays over limit or alarm status to security personnel at a terminal and sends email/phone alerts Generates reports on stored data: shift reports, or daily, weekly, and monthly reports can all be generated automatically and in hardcopy.  Graphs can also be included Identifies upward or downward trends in data Identifies non-transmitting instruments Tracks maintenance due on instruments and tracks locations of all instruments within your facility Displays video/images from webcams   Overhoff Overview is a customizable software package for networking multiple Overhoff instruments together or modeling a facility graphically in a series of views. https://overhoff.com/