Emerson IP221 appendix Intrinsic Safety Mounting Mains Voltage Output Relay, Racks

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3. Control Units

M E P 3 L / 1 D

Intrinsic Safety	Mounting		Mains Voltage		Output Relay
3 Intrinsically Safe	R	Rack Mounted	1	220/240	S	Single Pole Changeover
	L	Wall Mounted	Volts		D	Double Pole Changeover
			2	110/120
			Volts

4. Racks

M E P 3 B / 0 7

Intrinsic Safety	Number of spaces for control units
3 Intrinsically Safe	01 to 14
	Remaining spaces are blanked off

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Contents Safety Information Introduction ContentsInstallation Fault Finding Specification and descriptionExplanation of symbols Protection of permanently installed equipmentSensors Gap sensorsHi-Sens cylindrical sensors Reflection Method Figure Interface detection Attenuation method FigureSolids Density Detection Head Amplifier UnitsNormal acting head amplifiers Type Industrial Case Marine Ii Inverse acting head amplifiersSensor State Output Control UnitsHead amplifier internals Installation 2.1 CalibrationCalibration procedure by sensor type Hi-Sens Sensors Ii Gap SensorsIii Interface Sensors Attenuation Method Sludge Sensor Iv Interface Sensors Reflection MethodAdjacent head amplifier mounting details Sensor and head amplifier installationPage Wiring Cable Control unit installationIi Head Amplifier Unit Iii Control unitRelay Ratings Control Unit Connections Intrinsically safe installation Certificates of ConformityII 1 G EExia IIC EN 50014 & EN Fault indicated Fault FindingUnit not switching Relay contacts not changingHead Amplifiers Sensor specificationIntrinsic safety Power consumptionTemperature Range HousingRecommended Spare Parts 5.1 Sensor and head amplifier Standard Control UnitRack Mounted Unit Appendix I Part Numbers Intrinsic Safety Mounting Sensor Type Test SwitchOptions Sensor ConnectionRacks Intrinsic Safety Mounting Mains Voltage Output RelayAppendix III List of tables Section Title Appendix II List of illustrations Section TitleMaintenance / Inspection International Americas Abcdef