The Primalert 10 monitor is activated when the radiation level exceeds a preset value. The alarm level (2.5 mR/h or 20 mR/h) is selected by means of a slide switch on the front panel. A pair of bright red lamps on the face of the instrument flash a warning and continue to flash until safe conditions are reestablished.
Specifications Specifications Section 2 Specifications 2.1 Specifications Detector Energy compensated GM tube Energy Dependence -10%, +40% from 50 keV to 2 Me, as referenced to Selectable Alarm Level 2.5 mR/h or 20 mR/h (See Section 5, Range Switch Modification) Visual Alarm Two flashing red lamps.
Installation Mounting Section 3 Installation 3.1 Mounting The mounting bracket supplied may be attached to any convenient vertical mounting surface. Before mounting the bracket to the wall, however, make sure that the six-foot converter power cord will reach the nearest power outlet. The wall-mounting bracket comes supplied with double-sided foam tape already attached.
Operators Manual 3.5 Routing Cleaning Do not immerse the Model 05-433 Primalert 10. The unit is not waterproof. Liquid could damage the circuits. The unit should be kept clean and free from dirt and contamination. The unit may be cleaned by wiping with a damp cloth using any commercially available cleaning or decontaminating agent.
Operation Setup Section 4 Operation 4.1 Setup Attach the power cord (converter) into the Primalert and plug converter unit into the wall receptacle as noted in Section 3. The unit should alarm for 2 to 3 seconds before the automatic reset extinguishes the indicators.
2.5, 5, 10, 20 or 40 mR/h. If it is desired to change the range on the Primalert 10, simply remove the back cover by removing the center screw. The back of the printed circuit board will then be exposed showing clearly two jumpers attached to the 2.5 and 20 mR/h solder points.
Warning Warning Section 6 Warning 6.1 Warning This instrument contains CMOS integrated circuits. No service should ever be attempted unless by a competent technician thoroughly familiar with these devices. Static charges normally present in a dry atmosphere or leakage current in soldering irons or other non-grounded tools can instantly destroy CMOS integrated devices.
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