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Model 7043 -Portable Tritium In Air Monitor
Tyne Engineering’s new handheld Portable Tritium In Air Monitor Model 7043 monitors for both tritium and gamma in a single, robust, portable tritium monitoring instrument. This well balanced, easy-to-carry measurement tool can be placed on end allowing operators working at a distance to view the touch screen monitor .
Measurements such as flow from the solid-state flowmeter and chamber temperature are monitored by the micro-processor. Instrument output includes; analog (0-5V, 4-20mA), relay alarm contact (30VDC, 1A) for operation of external equipment, and communication (RS232/RS485) to enable downloading or recording of information onto a computer. The TFT full color LCD display mounted on the surface plate clearly displays instrument readings in both digital and graphic format to show real time measurements and trends.
A powerful long-life pump can be used to draw air through a 10 meter tube. This allows the instrument to be used to measure the inside of rooms without the need for the operator to enter the room.
Batteries installed in the handle are easily replaced.
- Simple to use, with only one operating switch with four settings: Off, Sample, Pump, Set Up.
- Gamma Compensation with four large ion chambers arranged in a cruciform configuration. Two chambers are used for measuring the air sample, and two are for compensation.
- Less than 10% inaccuracy in 20 mR/hr field.
- High Sensitivity. The volume of a measured charge is 500 cc. The current amplification circuit employs ultra-low leakage technology. Each chamber has its individual amplifier, increasing the Signal-Noise Ratio of the analog circuit.
- Sensitivity is 1µCi/m³.
- Radon compensation is provided by the analog filter circuit designed to separate the radon spike. The software can distinguish the radon spike from the tritium signal occuring as a slow-change signal.
- Ion-traps are built into each ion chamber.
- Noble gas compensation is accomplished by interposing a desiccant cartridge between the ports of the measurement and compensation chambers. The airflow to and from these chambers is channeled through ports that are accessible from the instrument`s faceplate. The noble gas signal can be displayed by the micro-processor.
- Direct gamma measurement is provided using an installed GM tube.
- Decontamination by purging of all 4 ion chambers can be achieved with use of the centrally installed cartridge heater.