http://www.kce.url.tw/en/custom_18241.html 1-7. Special features 1-7. Special features 1. (St-3-2) A/M Open/Close  2. (St-3-3) Countdown/Positive timing  3. (St-3-4) SV Show TIMER Reciprocal  4. (St-4-1) Control SV Switch (SV OFF)  5. (St-7-2) Boot automatic calculation  6. (St-7-4) Hide Show PV value  7. Parameter (R-Y) Hot runner/Preheat function  8. Optional features-Double SV set  9. Optional features-Remove SV