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UMF
   
    Features
 
  • True power system design complaints
  • ANSI-IEEE, IEC, VDE standards
  • High accuracy of 0.02%
  • Display with super rate LED
  • Crystal base guarantee long term stability
 
 
 
Specification
  • Accuracy(23 + 3°C) : 0.02%fs + 1 count
  • Stability < 20 ppm per degree °C change, long term draft < 20 ppm draft per year
  • Digits & count : 4-1/2 digits - 19999 counts.
  • Display : 0.56" super rate LED
  • Input resistance < 1 M
  • Input over : 1KVrms for 10 sec, 750V continuous
  • Response time : 1 of per sec typically
  • Dielectrically strength : 2.5 KVrms, terminals to reference ground (case), 2 KVrms for input to power
  • Surge test : ANSI-c37.90/1989, IEC 255-3 (1989)
  • Impulse voltage : 1.2 * 50 us 4KV, oscillation wave 0.5us-100KHz 3KV or 1MHz - 0.25ms 2.5KV
  • Operating condition :
    • Temperature range -10 to 55°C, 0-99% RH non-condensed storage -25 to 70°C, 20-99% RH non-condensed
  • Auxiliary power : AC + 15% < 3.5 VA