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3.3 Additional Remarks of Special Functions
3.3.1 Single-phase phase-shift trigger output
When OPt is set to PHA, installing a K5 or K6 module in OUTP slot can single-phase phase-shift
trigger a TRIAC or 2 inverse parallel SCRs. It can continuously adjust heating power by control the
conduction angle of thyristor. With non-linear power adjustment according to the characters of sine
wave, it can get ideal control. The trigger adopts self-synchronizing technology, so it can also work
even when the power supplies of the instrument and the heater are different. Phase-shift trigger
has high interference to the electric power, so user should pay attention to the anti-interference
ability of other machines in the system. Now the K5 or K6 module can be only used in 50Hz power
supply.
