Product details
New SI21BG Geiger-Muller counter tubes.
Excellent state with original boxes.
One counter in one lot.
We ship via International Airmail from Post Office in Kyiv.
Tracking number is provided.
Technical specifications of SI21BG:
Nominal operating voltage - 390 V.
Recommended operating voltage range - from 350 V to 450 V.
Maximum slope of the volt-ampere characteristic - 1.25%/V.
Permissible current of the SI21BG meter:
- minimum - 12 μA;
- maximum - 20 μA.
Current sensitivity of the meter:
- minimum - 0.4 μA/r/h;
- maximum - 0.7 μA/r/h.
Maximum permissible voltage on the anode of the SI21BG meter - 450 V.
Maximum permissible current - 20 μA.
Altitude - 5 mm Hg.
Minimum service life of meters - 300 hours.
Maximum rated operating radiation - 50 r/h.
