Teledyne 3000ZA-3X operating instructions Commands via RS-232 Input

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Trace Oxygen Analyzer	Installation

Table 3-5: Commands via RS-232 Input

Command	Description
as<enter>	Immediately starts an autospan.
az<enter>	Immediately starts an autozero.
st<enter>	Toggling input. Stops/Starts any
	status message output from the
	RS-232, until st<enter> is sent
	again.

The RS-232 protocol allows some flexibility in its implementation. Table 3-6 lists certain RS-232 values that are required by the 3000ZA implementation.

Table 3-6: Required RS-232 Options

Parameter	Setting
Baud	2400
Byte	8 bits
Parity	none
Stop Bits	1
Message Interval	2 seconds. When CRC opens
	again, zero and span are done,
	and the sample is being analyzed.

Range ID Relays: There are three dedicated Range ID relay contacts. Three ranges are assigned to relays in ascending order—Low range is assigned to Range 1 ID, Medium range is assigned to Range 2 ID, and High range is assigned to Range 3 ID.

Network I/O: A serial digital input/output for local network protocol. At this printing, this port is not yet functional. It is to be used in future options to the instrument.

RS-232 Port: The digital signal output is a standard RS-232 serial communications port used to connect the analyzer to a computer, terminal, or other digital device. It requires a standard 9-pin D connector.


Teledyne Analytical Instruments	25

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Contents Model 3000ZA-3X 3000ZA-3X Specific Model Information Important Notice Safety Messages 3000ZA-3X Vii Table of Contents Testing the System Appendix MaintenanceModel 3000ZA Rear Panel Model 3000ZA Front PanelXii List of TablesIntroduction Main Features of the AnalyzerOverview Typical ApplicationsIntroduction 3000ZA-3X Model DesignationsModel 3000ZA Front Panel Front Panel Operator InterfaceData Entry Keys Function KeysDigital Meter Display Alphanumeric Interface ScreenRear Panel Equipment Interface Access DoorStandby Button Optional ∙ 50-Pin Equipment Interface PortIntroduction Operational TheoryZrO2 Sensor Principles of OperationOperational Theory 3000ZA-3X Sample SystemZirconium Oxide Sensor Application Notes Electronics and Signal ProcessingOperational Theory 3000ZA-3X Component Location Electronic Block Diagram Unpacking the Analyzer InstallationMounting the Analyzer Installation 3000ZA-3X Gas Connections Rear Panel ConnectionsInstallation3000ZA-3X Electrical Connections Zero in and Span in OptionalEquipment Interface Connector Pin Arrangement Analog Output Connections Threshold AlarmAlarm Relay Contact Pins System AlarmRemote Calibration Connections Range ID Relay Connections Remote Probe Connections 2.3 RS-232 Port FET Series ResistanceCommands via RS-232 Input Testing the System Installing the Zirconium Oxide SensorsOperation Style Conventions Using the Data Entry and Function ButtonsKeys Description Escape EnterAnalyze Screen Menu/Screen StructureSystem Menu Hierarchy of Available Functions Enter Password T a Password routineChange Password Enter New Password T aModel Routine Logout RoutineSelf-Test Routine Analog-Out Adjust RoutineFilter Routine 20mA Gain 20mA Limit False Track in Cal Yes Span Menu Auto-Calibration TimerChange Stream Span Sensor Span TimerSpan Value Span Auto Finish Span FinishSpan Begin Span Begin Begin Span?Zero Finish Zero MenuZero Value Zero Timer 7 min Zero TimerZero Begin Zero Begin Begin Zero?Alarm Active Alarms MenuAlarm Polarity AL-1 NON-LATCHING AL-1 20.00 ppm AL-2 ActiveAlarm Latching Alarm FailsafeAlarm Setpoint AL-1 80.00 ppmRange Select Range MenuRange Select Auto Range Setpoints Manual Range SelectRoutine Maintenance MaintenanceSensor Replacement Removing the SensorMaintenance 3000ZA-3X Sensor Block with Middle Sensor Installed Fuse ReplacementSelf-Test Result Display System Self Diagnostic TestRear Panel Removal Remove only those screws marked with an Major Internal ComponentsTroubleshooting CleaningTrace Oxygen Analyzer Maintenance Maintenance 3000ZA-3X Teledyne Analytical Instruments Appendix SpecificationsOperating Temperature 5-35 C Qty Part Number Description Recommended 2-Year Spare Parts List19-inch Relay Rack Panel Mount Drawing ListFlow Rate Recommendations Application NotesRestriction Devices BY-PASS Conversions