4040 - Methane / Nonmethane analyzer - Teledyne Analytical ...

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Operational TheoryThe electrode section of the cell may be removed for inspection byturning off the power, disconnecting the electrode lead plug, andremoving the screws, which retain the electrode assembly in the sensorbody.2.3.1 Electrometer-AmplifierThe collector cable is coupled directly to a coaxial fitting located onthe electrometer-amplifier PC board. The PC board is located on the sidepanel next to but outside of the isothermal chamber. See Figure 2-1 andconsists of an electrometer amplifier and an operational amplifier. Thiscircuit is a very high-gain, current-to-voltage converter circuit, havingan input impedance measuring in the billions of ohms. It is staticsensitive and highly susceptible to contamination. Special care must betaken in handling this PC board.Refer to Section 5.5.4: Electrometer-Amplifier PC Board for moreinformation concerning the electrometer-amplifier and the other printedcircuits that follow.2.3.2 Anode Power SupplyThe high voltage anode power supply components are mounted onthe anode power supply printed circuit board. High voltage regulation isachieved through the use of series-connected zener diodes. Thesimplicity of this circuit’s design can be attributed to the extremely lowcurrent demand of the anode circuit. The positive output voltage isnominally 125 volts. Output tolerance is ±10 volts from the specified125 volts.2.3.3 Flame Guard CircuitA thermistor-controlled, transistorized switching circuit is employedto operate a relay in the event of a flame-out condition. A panel indicatorlight and fuel shut-off solenoid valve are operated by the relay to alarmpersonnel that a flame-out condition has occurred. The fuel shut-offsolenoid valve stops the hydrogen flow.2.3.4 Flame Ignition CircuitThe flame ignition circuit includes the anode-igniter electrode (in thedetector cell), a transformer, and processor controlled relay. The circuitis automatically energized when the FID cools due to lack of flame.22 Teledyne Analytical Instruments
Operational Theory Series 4040If automatic ignition fails five times, there will be a message thatreports this, and the flame can be manually ignited by pressingsimultaneously the Up and Down key.Teledyne Analytical Instruments 23
Page 9 and 10: Table of ContentsSafety Messages ..
Page 11 and 12: 4.5.2 Expanded menus 494.6 Setting
Page 13 and 14: List of TablesTable 3-1: Analog Out
Page 15 and 16: IntroductionIntroductionTeledyne An
Page 17 and 18: Operational Theory Series 4040Opera
Page 19 and 20: Operational Theory Series 4040SENSO
Page 21: Operational Theory Series 4040The a
Page 25 and 26: InstallationInstallationInstallatio
Page 27 and 28: Installation3.3.2 Gas ConnectionsTh
Page 29 and 30: Installation3.3.3.1 PRIMARY INPUT P
Page 31 and 32: InstallationThreshold Alarm 2:Can b
Page 33 and 34: Installation3.3.3.7 RANGE ID RELAYS
Page 35 and 36: Installation3.3.4 RS-232 PortThe di
Page 37 and 38: Installation3.3.5.2 EFFLUENTAll the
Page 39 and 40: InstallationFigure 3-3: Front Panel
Page 41 and 42: InstallationTeledyne Analytical Ins
Page 43 and 44: OperationOperation4.1 Analyzer Oper
Page 45 and 46: OperationScreen Modes:Screen Readou
Page 47 and 48: Operation5. When the selected optio
Page 49 and 50: Operation12. TIMING: Low level appl
Page 51 and 52: OperationDAC A - GOODDAC B - GOOD--
Page 53 and 54: Operation-----------------------STA
Page 55 and 56: OperationNote however, that the ins
Page 57 and 58: OperationReenter a new Password'A'
Page 59 and 60: Operation Start the diagnostic test
Page 61 and 62: Operationconcentration. If an activ
Page 63 and 64: OperationRANGE LIMITS: Ranges may b
Page 65 and 66: OperationTo exit STANDBY, scroll ag
Page 67 and 68: AppendixAppendixA.1 Specifications
Page 69: AppendixSend orders to:TELEDYNE INS

4040 - Methane / Nonmethane analyzer - Teledyne Analytical ...

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