Varian Tri Scroll Vacuum Pump PTS03001UNIV Fluke The first scale is 0-3

The first scale is 0-3 uR/hr which is actually less than a typical background

These have probe clips to accomodate Eberline HP-210 probes

Radon is naturally occuring and in nuclear stations ignored when assessing airborne contamination from the operation of the plant itself

If you are new to TLD processing

While the traditional analog meter scale presents relative scale and movement of the counts received

Varian Tri Scroll Vacuum Pump PTS03001UNIV Fluke The first scale is 0-3The TriScroll dry scroll pump features oil free, high pumping speed and low ultimate pressure to provide clean, dry vacuum. Long life tip seals typically require replacement on a yearly basis. The pump features bearing purge port to extend the life of the crank bearings. An automatic air ballast manages water vapor without reducing pumping speed. TriScroll 300 Pumping speed 60 Hz 250 l m, 15 m3 hr, 8. 8 cfm 50 Hz 210 l m, 12. 6 m3 hr, 7. 4 cfm