The manual states 10+ years typical, but electrolytic capacitors in the power supply may fail after 8–12 years. Periodic inspection recommended.
The Circutor Computer 8d-96 is found in:
The 8d-96 might be known under different names in different markets. Search for: circutor computer 8d-96 manual
Also, look for manuals of similar units like the Circutor 6d-96 or Circutor CVM-96—their programming logic is often identical.
Not officially. Circutor still supports it, but its successor—the Computer Smart 12—has a graphical display and better harmonic management. However, thousands of 8d-96 units remain in service worldwide. The manual states 10+ years typical, but electrolytic
The 8d-96 can trigger a relay output (if fitted) based on conditions like "Over-current" or "Under-voltage." The manual explains how to set hysteresis and delay timers.
Manual solution: You need the "Communication parameters" section. The default baud rate is usually 9600, 8 data bits, 1 stop bit, no parity. The device address is often 1. The manual also clarifies that the A/B terminals (sometimes labeled D+/D-) are polarity sensitive. Swap the wires. The Circutor Computer 8d-96 is found in: The
C/k = (CT primary current) / (Capacitor step kvar × 1000 / (√3 × line voltage))
Example: CT = 1000:5A, 6 steps of 25 kvar each@400V → C/k ≈ 0.40. The manual provides a lookup table to avoid math errors.
Because Circutor S.A. (based in Barcelona, Spain) has been producing this model for over a decade, the manual may not be prominently displayed on their main site. However, several reliable sources exist.