Thermo Mini 900 Series GM Monitors

The Mini 900 series of monitors is well established in the teaching, research, hospital and industrial labratories as a reliable, convenient and inexpensive radiatioNo meter. They are equipped with a choice of GM or scintillation probe, matching logarithmically-scaled meter and extensible cable. The Mini 900E and Mini 900EP15 are available scaled in counts per secnd or counts per minute.

Features

* Large, logarithmically-scaled meter, with an open scale at the lower end to show background levels of contamination while displaying high levels withut switching

* Speaker to give an audible estimate of radiation intensity

* Alarm that can be set to trip at any level on the scale

* Battery or mains operation using a separate power unit. Included is an internal cnstant current charger for rechargable batteries

* Lightweight aluminium case

* Comprehensive manual cntaining tables and curves of response to different radiations and other useful information

* The monitor conforms to the requirements of the Internatinal Technical Commission publication 325

Monitors are delivered complete with alkaline batteries, probe, cable, and instruction manual.

Rechargeable batteries are fitted on request.

Mains power units are available for all series 900 monitors.

Specifications:

Weight: 1.0 kg
Size: 180 (w) x 110 (d) x 165 (h) mm verall
Batteries: 6 type AA cells, alkaline (IEC LR6) or rechargeable (IEC KR15/51)
Battery Life: Appprximately 300 hours at 4 hours/day
Paralysis Time: Scale corrected to give true reading
Meter Integratin Time: 1 to 4 seconds set to match counting rate
Radiation Detector: Halgen quenched G-M tube
Radiation Detected: Gamma and x-rays only
G-M Tube Supply: 300-700 volts preset for tube type
Overload Protection: No meter "fallback" with intensities at least 100 times full scale reading
Mains Power: 12-18 volts DC from mains unit
Energy response: Exposure based response to types R, G, X, & D shown on Mini900 main page.