Detcon FP-624D Manual de usuario

INSTRUCTION MANUALDetcon Model FP-624DFP-624D Combustible Gas Sensor(0-100% LEL)PGM 1PGM 2MODEL FP-624DHOUSTON,TEXASFLT 1 2 CALMicroSafe LEL Gas Senso

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 6 of 422. Installation2.1 Operational Guidelines for Safe Use1. Install sensor only in areas wit

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 7 of 42Leak SourcesThe most probable leak sources within an industrial process include flanges,

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 8 of 42typical poisons are: silicone oils and greases, siloxanes (HMDS), H2S, anti-knock petrol

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 9 of 42Proper electrical installation of the gas sensor is critical for conformance to Electrica

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 10 of 42and 24VDC source is shown in the Table below. The maximum wire size for termination in t

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 11 of 42b) Observing correct polarity, terminate the field wiring (DC+, DC-, MA, A, and B) to th

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 12 of 42This adjustment is only required after initial installation and will not be necessary th

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 13 of 423. Operation3.1 Programming Magnet Operating InstructionsThe Operator Interface of the F

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 14 of 423.2 Operator InterfaceThe operating interface is menu-driven via the two magnetic progra

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 15 of 42Software FlowchartFigure 15 FP-624D Software FlowchartdecPGM1/2 (M)mA Output XX.XXSensor

Model FP-624DFP-624D Instruction Manual iiThis page left intentionally blank

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 16 of 423.3 Normal OperationIn normal operation, the display continuously shows the current sens

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 17 of 42c) The transmitter will display the following sequence of text messages as it proceeds t

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 18 of 42Fault Status register will be set until the calibration is complete.c) Apply the span ca

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 19 of 42The Program Mode menu items appear in the order presented below:View Sensor StatusSet Au

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 20 of 42AutoSpan LevelThe menu item appears as: “Auto Span Level XX”Days Since Last AutoSpanThe

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 21 of 42Alarm 2 LevelThe menu item appears as: “Alarm 2 Level XX”Alarm 2 AscendingThe menu item

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 22 of 42NOTE:The default value for gas factor is 1.0. This would be used when methane is the tar

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 23 of 42The menu item appears as: “Set Gas Factor”.From the Set Gas Factor text scroll, hold the

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 24 of 42sensors that are operated on a common fixed bridge voltage platform. The range of bridge

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 25 of 42NOTE: “Restoring Factory Defaults” should only be used when absolutely necessary. Allpre

Model FP-624DFP-624D Instruction Manual iiiTable of Contents1. Introduction...

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 26 of 423.5.9 Alarm 1 and 2 SettingsThe FP-624D contains two Form C alarm relay outputs. These r

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 27 of 42The fault relay can be configured as either latching or non-latching. In non-latching mo

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 28 of 423.6.2 Fault Diagnostic/Failsafe FeaturesFail-Safe/Fault SupervisionModel FP-624D MicroSa

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 29 of 42If the voltage across the sensor bridge (See Figure 3) is greater than 3.5VDC or less th

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 30 of 424. RS-485 ModbusTMProtocolModel FP-624D sensors feature Modbus™ compatible communication

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 31 of 4203 40013 Special #3 RFunctionDependant on Valueof 40006 (See Special RegisterTable)03/40

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 32 of 425. Service and MaintenanceCalibration FrequencyIn most applications, monthly to quarterl

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 33 of 42Replacement of the Connector PCBNOTE: It is necessary to remove power to the junction bo

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 34 of 426. Troubleshooting GuideRefer to the list of Failsafe Diagnostic features listed in Sect

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 35 of 42Check validity of span gas and flow rate (check MFG date on cal cylinder).Make sure corr

Model FP-624DFP-624D Instruction Manual ivList of FiguresFigure 1 Sensor Assembly Front View...

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 36 of 42Processor and/or Memory FaultsRecycle power in attempt to clear problemRestore factory d

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 37 of 427. Customer Support and Service PolicyDetcon HeadquartersShipping Address: 4055 Technolo

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 38 of 428. FP-624D Sensor WarrantyPlug-in Combustible Gas Sensor WarrantyDetcon Inc. warrants, u

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 39 of 429. Appendix9.1 SpecificationsSensor Type: Continuous diffusion/adsorption typeMatched-Pa

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 40 of 421000 ohms maximum loop load @ 24VDC0mA All Fault Diagnostics2mA In-Calibration4-20mA 0-1

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 41 of 429.2 Spare Parts, Sensor Accessories, Calibration EquipmentPart Number Spare Parts926-525

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 42 of 429.3 Revision LogRevisionDateChanges madeApproval0.08/9/2010Initial ReleaseLBU0.110/6/10U

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 1 of 421. Introduction1.1 DescriptionDetcon Model FP-624D combustible gas sensors are non-intrus

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 2 of 42Figure 2 Sensor Cell ConstructionPrinciple of OperationMethod of detection is by diffusio

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 3 of 42Figure 4 Response Curves1.2 Modular Mechanical DesignThe Model FP-624D Sensor Assembly is

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 4 of 42Figure 6 Transmitter ModuleThe transmitter module includes four LED status indicators (se

Model FP-624DFP-624D Instruction Manual Rev. 1.2 Page 5 of 42Figure 8 Base Connector Board1.3 Relay OutputsThe FP-624D includes three 5A Form C relay