TopProducts Comparison
- Show All
- Show differences
- Back

GROUNDING RESISTANCE METER UT-522 UNI-T


HDD FOR DVR HDD-WD33PURZ 3TB 24/7 WESTERN DIGITAL

198.61 EUR
198.61 EUR

105.71 EUR
105.71 EUR

Capacity:  ...  3 TB  
Interface:  ...  SATA 6 Gb/s  
Spindle speed:  ...  5400 RPM  
Size format:  ...  3.5 "  
Cache memory:  ...  256 MB  
Technology:  ...  
  • Allframe 4K - Reducing video frame "loss" phenomenon
  • Enhanced Workload Rating - Increased hard drive workload rate - even up to 180 TB per year
  • Optimized to handle up to 64 single-stream HD cameras
  • MTBF (Mean Time Between Faults) - 1 000 000 h  
  • Designed to continuous operation 24/7:  ...    
    Resistance measurement:  40 Ω ± (2% + 20)  @ 0.01 Ω ,
    400 Ω ± (2% + 3)  @ 0.1 Ω ,
    4000 Ω ± (2% + 3)  @ 1 Ω
  • Auxiliary resistance : 500 Ω ± 5 %
  • Measuring voltage : ≤ 10 V AC @ ~820 Hz  
  • ...  
    Ground voltage measurement:  400 V ± (1.0% + 6)  @ 1 V  ...  
    Automatic change of measuring ranges:    ...  
    RS-232:    ...  
    USB:    ...  
    Main features:  
  • Hold - stopping the meter reading,
  • The measurement can be performed in full or simplified configuration,
  • Warning of poor connection of leads during measurement,
  • Large, readable LCD display with backlight,
  • Low battery level alarm,
  • Aesthetic and solid construction,
  • The set includes a practical case  
  • ...  
    Operation temp:  5 °C ... 40 °C  ...  
    Permissible relative humidity:  ≤ 80 % (non-condensing)  ...  
    Power supply:  6 x 1.5V, type AA/LR6/FR6 battery - included  ...  
    Weight:  0.42 kg  0.544 kg  
    Dimensions:  160  x 100  x 70 mm  ...  
    Manufacturer / Brand:  UNI-T  WESTERN DIGITAL  
    Guarantee:  2 years  3 years