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Parameters and characteristics .
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Voltage when the counter starts working: 280-320 V
Normal working voltage: 360-440 V
Working range (delta of working voltage) is at least 80 V
Slope of working curve: 0.125% / 1V (this means that counter detect 0.125% particles less if working voltage less for each 1 V)
Self noise in "darkness" = 25 pulses/min <- This parameter is very inflated.
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Parameters of connected input circuit:
Load = 5-10 MOm
Strays of input must be less that 10 pF
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Allowable ambient temperature = -40 to +50 degree of Celc.
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