ZP1201 GEIGER MULLER TUBE, CENTRONIC Starting voltage max 325 V Plateau threshold voltage max 400 V Plateau length 200 V Recommended supply voltage 500 V Plateau slope max 0.04 %/V Background (shielded with 50 mm Pb with an inner liner of 3 mm Al), at recommended supply voltage max 10 count/min Dead time, at recommended supply voltage max 110 μs LIMITING VALUES (Absolute max. rating system) Anode resistor min 4.7 M ohm Anode voltage max 600 V Ambient temperature - continuous operating · max +7