In the device software there is a diagnostic and repair algorithm for the voltmeter and ammeter insertion sequence. The function can be activated on demand with a password and allows the wiring sequence to be viewed and changed via software provided the following conditions are met:

 

• The neutral conductor (in the 4-wire network) is correctly placed at the corresponding terminal (normally number 11)
• There are no crossings of conductors between different CTs (e.g., on phase 1 of the device there is a wire from CT 1 and on the other a wire from CT 2)
• The power factor is between 1 and 0.5 Inductive for each phase
  
   

Auxiliary power supply:

• Rated value Uaux ca: 80...265V
• Rated frequency fn: 50 opp. 400Hz (automatic selection)
• Operating frequency: 4565Hz (fn 50Hz) opp. 360...440Hz (fn 400Hz)
• Self-consumption: 2.5VA (230Vac backlight 30% without external modules)
• Uaux dc nominal value: 110...300Vdc
• Self-consumption: 3.5W (without modules, 110Vdc)
• Reverse polarity protection
  
   

Insulation:

• Installation category: III
• Pollution degree: 2
• Insulation reference voltage: 300V (phase to neutral)
  
   

Environmental conditions:

• Reference temperature: 23°C ± 2°C
• Specified operating range: -5...55°C
• Limiting range for storage and transportation: - 25...70°C
• Suitable for use in tropical climates
• Maximum power dissipation 1: ? 5W For thermal sizing of switchgear
  
   

Enclosure:

• Enclosure: recessed (panel cut-out 92x92mm)
• Front panel: 96x96mm
• Depth: 62mm
• Maximum depth: 81mm (with optional modules)
• Connections: screw fixing terminals (current inputs) pull-out (voltage inputs)
• Housing material: self-extinguishing polycarbonate
• Degree of protection (EN60529): IP54 front panel, IP20 terminals
• Weight: 285 grams