GE Druck DPI 610 IS User Manual

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41 K249 Issue No. 4EnglishCalibrationSelect the item to calibrate from the menu as shown above and follow thecalibration procedure outlined on the display. The following test equipment will berequired.Pressure Measurement Channels (Internal and External)ï Deadweight Tester.Voltage Ranges (5V and 30V)ï Voltage source.Current Inputs and Outputsï Digital Milliammeter.General ProceduresThe following general hints are provided as a guide to calibration procedures. Fullcalibration procedures are described in publication number K235.DoUse high quality Repeatable and Linear pressure sources and allow adequatestabilization time before calibration (minimum 1 hour).Conduct the calibration in a temperature and preferably, humidity controlledenvironment. Recommended temperature is 21∞C, ±2∞C.Use deadweight testers carefully and away from draughts.Using the Calibration MenuThe calibration routines are selected from the SETUP menu as detailed on page 36.Enter the calibration PIN number, initially set to 4321, press and theCalibration Menu will be displayed as follows. It is recommended that the PINnumber be changed as soon as possible.