© 2015 General Electric Company. All rights reserved .12 | =GE Oil & Gas4700P/4700E and 4800P/4800E Product SafetyThe 4700/4800 are intended for use with industrial compressed air or, natural gas systems only.NOTE Installations using natural gas are Zone 0 or Div 1 installations.Ensure that an adequate pressure relief provision is installed when the application of systemsupply pressure could cause peripheral equipment to malfunction. Installation must be in accor-dance with local and national compressed air and instrumentation codes.General installation, maintenance or replacement