The KC-3 high-sensitivity tritium monitoring instrument is suitable for continuous automatic monitoring of tritium content in the air and chimney exhaust gas of nuclear facilities or tritium research laboratories. The detector consists of a coaxial compensation ionization chamber with an inner and outer volume of 20 liters each, capable of gamma compensation. It has the advantages of high sensitivity and low memory effect. The host is a microcontroller system composed of 8031 microcontroller as the core, which has functions such as automatic control, automatic zeroing, multiple parameter data display, data monitoring and processing, storage, alarm communication, etc.

technical indicators

1. Range: 4Bq/L-4.0 × 106Bq/L.

2. Response time: adjustable, automatically adjusted.

3. Working temperature: 0 ℃ to+50 ℃, less than 95% Rh

4. Alarm threshold: arbitrarily set.

5. Storage capacity: 32K bytes, storing 5000 pieces of data.

6. Measurement accuracy: relative error less than 5%, coefficient of variation less than 2%.

7. Power supply:~220V, rectified+12V, measuring ≤ 6W.

8. Communication interface: RS-252 standard interface, transmission rate 19200bps.

Main performance

1. Detector: 35cm × 70cm; secondary instrument: 220mm × 120mm × 250mm.

2. Machine weight: 30kg, including 25kg detector unit and 1.25kg main unit.

3. Working hours: Can operate continuously throughout the year.

4. Work protection: In the event of a sudden power outage, the data storage is powered by a power-off protection battery to ensure that data is not lost.

5. Detector: coaxial ionization chamber, effective volume of 20 L.

6. Clock: Using the DS12887 calendar clock chip from DALLAS in the United States, it records measurement time in real time with a monthly timing error of less than 1 minute.