Laserfiche WebLink
LANDFILL GAS MONITORING <br /> GEM 500 CALIBRATION AND PERTINENT DATA <br /> Date: 4 G Site Name,,-­ <br /> Technician: <br /> ame:Technician: �y � �, Job No, <br /> WEATHER OBSERVATIONS <br /> Wind Speed:`— r MPH Wind Direction: Barometric Pressure: 3r'"H <br /> 9 <br /> Air Temperature: — °F General Weather Conditions: <br /> CALIBRATION INFORMATION <br /> Pre-monitoring Calibration Precision Check <br /> Procedure: Calibrate the instrument Make a total of three measurements by alternating zero air <br /> and the calibration gas. Record the readings and calculate the average algebraic difference <br /> between the instrument reading and the calibration gas as a percentage. The calibration <br /> precision must be less than or equal to 2% of the calibration gas value. <br /> Instrument Serial No. <br /> Calibration Gas: %CH4 %CO2 j ® %02_ <br /> Time CH4 CO2 O2 <br /> Post-monitorin Calibration Check <br /> Time CH4 CO2 <br /> + 02 <br /> NOTES: <br />