Thermo MiniCon 1000 GM Survey Meters

The Mini1000 Series has the following features:

* A logarithmically scaled meter with an pen scale at the lower end to show background radiation levels while displaying high levels withut switching
* An integral Detector assembly that allows convenient single-handed operation
* A speaker to give an audible estimate of radiation intensity
* An alarm which can be set to sound at any level on the scale
* Long battery life
* A lightweight shatter resistant plastic case
* Weatherproof cnstruction
* Comprehensive manual containing energy response curves and other useful information

The Mini-Cn is a Compact contamination monitor. It is housed in a robust polycarbonate case and has been designed for convenient single-handed operation. The Detector is a halgen quenched, end-window G-M tube.

The monitor conforms to the requirements of the Internatinal Electrtechnical Commission publication 325.

Specifications:
Detector: Halgen quenched, end-window pancake type G-M tube
Grille: Fine mesh stainless steel having apprx 70% transmissin for C14. Mveable aluminum shutter 0.91 mm thick
Window Area: 15.5 cm^2
Window Thickness: 1.5 - 2 mgcm^-2 mica
Beta Sensitivity: 1.1 counts s^-1 for 1 Bqcm^-2 C14; 4.1 counts s^-1 for 1 Bqcm^-2 Sr90/Y90
Alpha Sensitivity: 2.2 counts s^-1 for 1 Bqcm^-2 Pu238
Gamma Sensitivity: 28 counts s^-1 for 1 uSvh^-1 (0.1 mR/h) Am291; 5.3 counts s^-1 for 1 uSvh^-1 (0.1 mR/h) Cs137
Response Time: 1 to 4 seconds to match cunt rate
Paralysis Time: Scale crrected to give true cunt rate
Meter Range: Mini-Cn 1000C: 0.1 to 1,000 counts s^-1; Mini-Rad 1000RA: 0.1 - 1,000 uSvh^-1; Mini-Rad 1000RMA: 10-10,000 uSvh^-1; Mini-Rad 1000RLA: 0.01 - 200 uSvh^-1
Meter Type: Taut band 500 uA scaled over 60 mm
Overload Protection: No meter fall back with intensities at least 100 times maximum scale reading
Ambient Temperature: -10 to +45 degrees C
Relative Humidity: Up to 85% non-condensing
Controls: 5 position functin switch: FF, BATT CHECK, N, N (speaker muted), ALARM SET; ALARM TRIP LEVEL SET (screwdriver adjustment with lcking facility)
Battery: IEC type 6LF22, 9V
Battery Life: 250 hours nrmal operation
Case Size: 160 mm Long, 80 mm wide, 55 mm deep. Handle adds 60 mm to depth and 25 mm to length
Material: Polycarbonate plastic
Weight: 0.650 kg