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�aDa CONTRACTORS LICENSE C-10#764037 <br /> INSTRUMENTATION— CONTROLS-- ELECTRICAL <br /> P O BOX 610, ACAMPO CA 95220 <br /> (209) 483-7846 --FAXIMESSAGE (209) 339-4571~a coopocomcast net <br /> CA OSB CERTIFIED N CWEA CERTIFIED <br /> CALIBRATION REPORT <br /> Customer ATC Associates Service Date 8/21/2003 <br /> 1117 Lone Palm Ave , Suite B <br /> Modesto, CA 95351 Project#. 1701 <br /> Attention Mr Drew Van Alien <br /> MANUFACTURER MSA <br /> MODEL- 487811 <br /> SERIAL#. 5623 <br /> ITEM SERVICED- LEL Analyzer, 610 N Hunter Street, Stockton CA <br /> DESCRIPTION OFE UIPMENT LEL Gas Transmitter, 0 -40% Hexane = 0-2 6 VDC Alarm Output @ <br /> 10% or 1 4 VDC wNokagawa Strip Chart Recorder <br /> INITIAL CHECK <br /> INPUT DESIRED ACTUAL DISPLAYED ACTUAL DISPLAY <br /> OUTPUT OUTPUT OUTPUT ERROR ERROR <br /> ' % vdc vdc % % % <br /> 000 100 115 375 1500 938 <br /> 4000 260 257 3875 -1 15 -313 <br /> FINAL CHECK <br /> INPUT DESIRED ACTUAL DISPLAYED ACTUAL DISPLAY <br /> OUTPUT OUTPUT OUTPUT ERROR ERROR <br /> % We vdc % % % <br /> 000 100 1 00 000 000 000 <br /> 4000 260 260 4000 000 000 <br /> COMMENTS <br /> Calibrated with 40% LEL Hexane to Air Test Gas Set Alarm Output @ 10% or 1 4 VDC Verified <br /> System Shut Down/Final Discharge Pump Shut Down Upon Alarm Found Moisture in Sample Tubing <br /> which can cause Sensor to Drift <br /> CertifiechTechnician Date Completed <br /> 8/21/2003 <br />