Wall mounted tritium monitoring instrument for air

feature

Easy to use, with only one operation switch and four settings: off, sampling, pump, and settings.

Gamma compensation, symmetrically arranged with four large ion chambers. Two chambers are used to measure air samples, and two are used for compensation.

The inaccuracy of the 20 mR/hr field is better than 10%

• High sensitivity. The current amplification circuit adopts ultra-low leakage technology. Each chamber has an independent amplifier, which improves the signal-to-noise ratio of the analog circuit.

Radon compensation is provided by an analog filtering circuit designed to separate radon spikes and tritium signals. The software of this device can distinguish between radon spikes and tritium signals that appear as slowly changing signals.

Each ion chamber is equipped with an ion trap.

Provide direct, wide range, gamma measurement using the installed GM tube.

By blowing the ion chamber and heating it with a centrally installed cylindrical heater, cleaning can be easily carried out.

Customers can choose between hard wired RS-232, Ethernet, or industry standard wireless connections.

Self monitoring with low air flow alarm

explanation

In tritium measurement, compensation for gamma background is crucial, as a gamma field of 1mR/Hr will produce ionization 500 times greater than that produced by l uCi/m3 tritium. Taen designed four ion chambers, each connected to an ultra sensitive electrostatic amplifier and filter. All signals go through an ADC converter, and the microprocessor calculates and displays the measured tritium value. A separate small ion chamber is used to cover a higher range of tritium concentrations. The microprocessor also uses solid-state flow meters to monitor air flow. It also controls the chamber temperature cycling instrument output during the heating and blowing process, including external communication through RS232, Ethernet, and industry standard wireless for downloading or recording information on the computer. The thin-film transistor (TFT) color LCD display installed on the panel clearly displays instrument readings in digital and graphical formats, showing real-time measurement values and trends.

The 7065 instrument is based on the same platform used in Taen's successful 7043 handheld tritium monitor for air. The wall mounted instrument uses four ion chambers, which are three times larger than the ion chambers used in the 7043 handheld instrument. This will triple the sensitivity. The wall mounted instrument also uses a larger, quieter, and more reliable pump, which can be easily accessed by removing the front panel. The 7065 instrument can also conveniently disassemble the wireless transmitter for independent tuning of the device. The larger ion chamber is configured in a compact internal module, enabling sensitivity to exclude the need for methane or P-10 counting gases, and eliminating the need for less reliable flow ratio counting systems. The 7065 ion chamber is sturdy and reliable. If they are indeed contaminated, an internally installed heater can be used for cleaning, while dry air is pumped into the chamber. The device uses a pre installed high-efficiency intake filter to ensure that the ion chamber is not contaminated. If necessary, a sniffer probe adapter can be provided and a section of pipeline and filter can be installed at the end. Sniffers allow users to locate suspicious tritium leaks, for example, by sniffing seals or flanges to help track the source of the leak. The sniffer is equipped with a 15 meter long tube. The front LCD screen is a touch screen used to change device settings, alarm level settings, etc.

The instrument has visual and auditory alarm signals. The sound alarm can be cancelled without the need to cancel the visual alarm. The touch screen panel is accessed by a two-level password system. One password provides higher-level access for healthy physical personnel to set up devices, while the other password provides restricted access for operators to adjust alerts, etc. Touchscreens are enhanced by the use of large digital readers, providing operators with better and farther visibility. This wall mounted device is powered by an internal power source and only requires a standard 120V AC three pin socket to operate.

Technical Specifications