| Sensitivity |
1 µCi/m3 (0.05 DAC) |
| Accuracy |
±3 µCi/m3 from 1 to 100 µCi/m3, ±10% from 100 µCi/m3 to 20,000 µCi/m3 |
| Range |
1 µCi/m3 to 20,000 µCi/m3 |
| Detector |
4 matched chambers - Two for measuring, two for compensation |
| Measuring chamber effective volume |
500 cc (2 measuring chambers of 250 cc each) |
| Flow rate |
1.4 L/m |
| Zero stability |
±1 µCi/m3 after unit is powered on for 5 minutes |
| Background cancellation |
Less than 10% of the reading change in 10 mR/hr field |
| Radon compensation |
Included in the software |
| Ion trap |
Removes charge in the air before the measuring chambers |
| Dust filter |
Built into the unit |
| Noble gas cancellation |
Ports for air inlet/outlet of measuring chambers and compensation chambers are accessible on surface plate so silica gel drier can be placed between the chambers to compensate for presence of noble gas |
| Tritium discrimination |
Instrument can discriminate in a field of HTO and elemental H3 using the silica gel drier |
| Purge/Decontamination |
All 4 chambers can be heated up by a cartridge heater controlled by the unit |
| Display |
Graphic LCD display. Unit displays the values (tritium and Gamma) both in numerical format and graphical trend |
| Communication |
Can be configured to RS232 (short distance) or RS485 (long distance) |
| Analog output |
0-5 V linear or logarithmic voltage output |
| Power supply |
2.5 V - 5 V external power supply, or 3 C-cell battery. Total power consumption is 150 mA |
| Gamma measurement |
At same time, the Gamma is measured by the unit. Gamma measuring range is from 0.1 mR/h to 10 R/h |
| Alarm |
Tritium, Gamma and Low air flow alarms. Alarm will be shown by Red LED light and sound by audible device |
| Data logging |
The tritium and Gamma values are logged every minute with current time and date stamp |
| Size and weight |
8"(L) x 5"(H) x 5"(W), 5 lbs |
| Drier |
Note that the silica gel drier is not part of the standard equipment . It requires an additional accessory kit |