<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">Hello Amrit,</span></div><div><br data-mce-bogus="1"></div><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">LVDTs for EV8611JT, EV8611CD, and EV8612 valves were re-calibrated.</span></div><div> </div><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">All valves were visually verified at their mechanical close and open positions.</span><br></div><div><br data-mce-bogus="1"></div><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">The following are the read-backs values from the LVDT's that we get after the calibration:</span><br></div><div><br data-mce-bogus="1"></div><div><table cellpadding="3px" border="1px" style="width: 555px; table-layout: fixed;" height="125" data-mce-style="width: 555px; table-layout: fixed;"><tbody><tr><td><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;"><strong>Electric Valve </strong> </span></td><td><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;"><strong>Position - CLOSE (0%)</strong></span></td><td><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;"><strong>Position -OPEN (100%)</strong></span></td></tr><tr><td><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">EV8611JT </span></td><td><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">-0.30 %</span></td><td><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">99.62%</span></td></tr><tr><td><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">EV8611CD</span></td><td><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">0.44 %</span></td><td><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">99.67%</span></td></tr><tr><td><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">EV8612</span></td><td><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">0.48 %</span></td><td><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">99.84 %</span></td></tr></tbody></table></div><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;"> </span></div><div><br data-mce-bogus="1"></div><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">During the calibration the valves were drove in manual mode to get more precision and make sure that the valves were at fully closed and opened positions.</span></div><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">The readout values behaved as suspected, less than -+1% offset.</span></div><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">After we finished with the calibration the valves were returned to the normal operations (PID controls), to make them operable from the EPICS EV control screens.</span><br></div><div><br data-mce-bogus="1"></div><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">After the calibration and closing of all the EV valves in the SST was observed that we still have pressure leaks, further investigation will be required.</span></div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">Best Regards,</span></div><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">Pablo </span></div><div><br></div><div><br data-mce-bogus="1"></div><div><br></div></div></body></html>