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1 rinisnea up the na~r pump ratio algoritnm wnicn worxs otr <br />the TPH comming t of the Thickener. Mad hanges to both <br />. ~ the PLC5 softwa~and the control View Sof~re. <br />3).Tried to tighten the flow meter comming off the NaCN tank <br />going to leach. I wasn't able to prevent the leaking. <br />1/30/92 <br />11 Worked on the zero speed switch for CV1, the seal tight <br />flex was severed and the wire was severed as well. i repaired <br />the seal tight flex by tapin~ the cut piece and cutting off <br />one end. The zero speed swi ch was working properly at the <br />end of my day. <br />2) Span and Zero Calibrated CV2. Reading 45 TPH high <br />3 The 4-20 MA signal comming out of the density meter on the <br />thickener drifted by about five percent. i calibrated the 4- <br />20 MA signal and grounded the signal wire shield. Itr was <br />reading properly at the end of my day. <br />If it drifts tomorrow I will consider replacing the output <br />board. <br />4~ Cleaned and calibrated the cyclone overflow and the <br />titration room ph meters. <br />1/31/92 <br />1) calibrated the cyclone overflow ph meter. <br />2) checked the thickener overflow density, everything appears <br />to be working well. <br />3 Moved the limit down from 75 percent to 70 percent on the <br />thickener under flow pump pid speed <br />4) checked the cvl zero speed switch it seemed to check out <br />so I took the jumpers off and increased the start up time <br />5) worked on the warehouse. <br />