The Tru-Tune option improves tuning by automatically optimizing control parameters whenever necessary to keep the system at target temperature. When a system is well-tuned, the product is kept closer to the ideal processing temperature. This improves yield and reduces scrap and the need for reworking misprocessed material. The PPC-2000’s standard firmware option controls up to 48 PID loops. The Tru-Tune option offers 32 loops of PID control with up to eight adaptively tuned loops.