Siemens 66 Series Installation And Service Instruction

INSTALLATION AND SERVICE INSTRUCTIONSiemensEnergy & AutomationSD66Rev 11January 2006Supersedes Rev 10Model Series 66 Amplifying and Reducing RelaysINTRODUCTIONThe Model Series 66 Amplifying and Reducing Relays are used in control circuit to amplify and reduce pneumaticsignals. The output of a relay is proportional to its input by the fixed gain factor of that relay model.This instruction has six major sections: Introduction, Installation, Principle of Operation, Maintenance, Warranty,and Parts List.Model Designation66 BA 2Model SeriesMaterial and FunctionA – Brass, AmplifyingR – Brass, ReducingInput-to-Output Ratio2 - 1:2, Model 66BA22:1, Model 66BR24 - 1:4, Model 66BA44:1, Model 66BR43 - 1:3, Model 66BA33:1, Model 66BR36 - 1:6, Model 66BA66:1, Model 66BR6SpecificationsSupply PressureNormal..................................... 20 psigMinimum................................. 1 psig above maximum required outputMaximum ................................ 80 psigNormal Operating Range....................... 3 to 15 psigOperating Range LimitsAmplifying Relay.................... Not to exceed 80 psig outputReducing Relay ....................... Not to exceed 80 psig inputOverrange Limits................................... 100 psig to any connectionAmbient Temperature Limits ................ -40° to +180°F (-40° to +82°C)StockCheck.com