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Maxum II
PD PA AP
Maxum II Reference Manual
Manual
Product Descriptions and Maintenance for Maxum II
Airless/Airbath Model Gas Chormatograph
7/2017
2000596-001
Analyzer Overview
Electronic Compartment
Component Descriptions and
Maintenance Procedures
Specifications
1
2
3

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   Summary of Contents for Siemens Maxum II

  • Page 1

    Analyzer Overview Electronic Compartment Component Descriptions and Maintenance Procedures Maxum II Specifications PD PA AP Maxum II Reference Manual Manual Product Descriptions and Maintenance for Maxum II Airless/Airbath Model Gas Chormatograph 7/2017 2000596-001...

  • Page 2

    Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems.

  • Page 3: Table Of Contents

    Table of contents Analyzer Overview............................7 Introduction..........................7 Analyzer Specific Documents....................8 Parts of the Maxum II.......................8 Isothermal Oven........................9 Switching and Sampling Valves.....................10 Operator Controls........................11 Electronic Compartment Component Descriptions and Maintenance Procedures........13 Power Supplies........................13 2.1.1 Power System Module......................13 2.1.2 Replacement Procedure......................15 Power Entry and Control Module...................18 2.2.1...

  • Page 4

    Solenoid Valve Control Module (SVCM)................76 2.8.2 Replacing a Solenoid Valve....................80 Electronic Pressure Control Module..................81 2.9.1 EPC Module Description......................81 2.9.2 Replacing an EPC Module.....................83 2.10 Color Touchscreen.........................85 2.10.1 Description..........................85 2.10.2 Maintenance Overview......................85 2.10.3 Replacement Procedures.......................86 Specifications.............................93 Index................................99 Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 5

    IT personnel. Failure to implement robust network security may expose your company to internet hacking attacks that could result in theft or loss of sensitive data, equipment damage, serious injury or death. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 6

    Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 7: Analyzer Overview

    Helium Ionization, Photoionization, and Electron Capture modes). All detector modules are available for both air bath and airless ovens. The Maxum II oven is designed so it can be divided into two independently heated isothermal ovens for parallel chromatography applications.

  • Page 8: Analyzer Specific Documents

    Parts of the Maxum II Overview The Maxum II Gas Chromatagraph is completely enclosed in an air-purgable, metal cabinet with hinged doors. Mounted above the isothermal oven is the electronics enclosure and regulator panel. The analyzer may be mounted on a wall, in a rack or on a floor stand.

  • Page 9: Isothermal Oven

    The Electronics Enclosure modules are interconnected using simple cable connections made to each module. All modules can be easily removed and replaced. The Maxum II software recognizes each Maxum II’s application, hardware components and network configurations.

  • Page 10: Switching And Sampling Valves

    Process lines, 11 LDV columns and valve-to-valve tubes can be connected directly to the caps of the Model 11 LDV (Low Dead Volume) version of the valve. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 11: Operator Controls

    Purge (Flashing Red) Purge pressure lost Fault (Red) "Failure" status is active Warning (Yellow) "Maintenance request" status signal is active Power (Green) 24 V power supply is on All LEDs are on during power-up boot. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 12

    Scientific Software, Inc. and includes custom features for the Maxum II. Using EZChrom, it is possible to set up methods and component peak identification. More information can be found in the Release Notes file supplied with the EZChrom software (under the Maxum EZChrom directory).

  • Page 13: Electronic Compartment Component Descriptions And Maintenance Procedures

    PECM plugs into the front AC receptacle of the power supply. A primary Line Voltage Selector selector switch (located above the AC receptacle) must be set to match the primary AC voltage input from the Power Entry Control Module. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 14

    2.1 Power Supplies Output Connections Output 24 VDC is supplied to components within the Maxum II via a cable harness that exits the backside of the PSM. The cable terminates in quick disconnect connectors. Typically, a white connector supplies 24 volts to the SYSCON2.1 cage and an orange connector supplies 24 volts to the PECM, where it is distributed to various modules in the EC.

  • Page 15: Replacement Procedure

    Slots in the bracket allow removing the supply without completely removing the nuts. Figure 2-2 Removing the Power Supply Module Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 16

    The new supply is installed using the steps in reverse order. It may be necessary to slightly bend the flange edges down to allow the supply bracket to engage the flanges. See C in the Removing the Power Supply Module above. photo Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 17

    Note Verify proper position of line-voltage selector switch and fuse value. Incorrect settings can damage the equipment. See the information packet that was shipped with the analyzer for information on the individual analyzer. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 18: Power Entry And Control Module

    L1 MMI PECM-SSR) supply LED out PECM3-CTRL Board Figure 2-4 PECM3 I/O Connections The PECM3 assembly part number is 2021828-002. An upgrade kit, part number 2022019-001 is available to replace earlier units. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 19: Feature Additions

    ● Built-in provision for connection of Uninterruptible Power Supply (UPS) for 24VDC circuits. The heaters are powered through different connectors to minimize the loading of the AC power needed for running the 24VDC circuits. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 20: Pecm Functions

    Heater Relays 1- 5 F4 10A Medium Wattage AC Filter Plug AC Chassis Heater Relays (for 24V supply) Ground F5 6A ABH2 ABH1 Air Bath Heater Power Figure 2-5 PECM AC Power Distribution Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 21: Oven Temperature Control

    When over temperature is detected the PECM over temperature circuit inhibits the SSR from powering the heater and stays off until power is reset. Alarm conditions are reported to the SYSCON over the I C link. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 22: Communication And Power Distribution

    PECM-CTL board. Another module can be powered from the other connector. Each of the 7 I C connectors also provides 24VDC power to the connected module. A separate connector powers a 24V fan. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 23: Onboard Solid State Relays

    LWH 4A On SSR4A LWH 4A Enabled 10k Ω DET/CTRL LWH 4B On DET/CTRL LWH 4 Plug Det Plug Detect CTRL PLUG Line LWH 4B Enabled SSR4B Neutral Figure 2-7 LWH4 Heater Circuits Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 24: Oven Functions

    ● Mounting location and connector for desired) setpoint module ● Control output for HWH SSR module ● Comparator circuit ● AC power output for HWH SSR ● PWM control signal output The HWH control path is shown below. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 25

    70°C or less. In addition, the “medium power” SSR Module can be used to control the two 250 watt heaters used in the Maxum airless oven configurations. PECM3 I/O Connections diagram in PECM Overiew for connector locations. See the Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 26: Electronic Enclosure Environment

    Maintenance Panel Level 1, if equipped. For PECM-1, the PECM3 I/O Connections Maintenance Panel Level 1 connects to position J17. See the PECM Overiew for the location of connector J17. diagram in Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 27

    2.2 Power Entry and Control Module Physical Location The PECM is mounted to the left inside wall of the EC cabinet. All fuses and electrical connections are readily accessible. Figure 2-10 PECM3 Mounted in EC Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 28: Replacement Procedure

    The PECM is the entry point for the line voltage for the entire analyzer. Note Specific additional instructions are provided with tags placed on the Maxum II and in the custom application drawing package noted below. Installation must include all of the items noted in both of these as well as the manuals.

  • Page 29

    1. Reset the device or cycle power 2. Check communication cable connections 3. Check for missing Temp Limit setpoint boards 4. Check for shorted or open RTDs 5. Replace the unit 6. Replace other connected units Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 30: Removing The Pecm

    5. Use a 5mm nut driver to loosen two hex nuts at the top of each side of base plate of the PECM. 6. Slide the PECM up and then lift the PECM off of the mounting bolts. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 31: Installing The New Pecm

    7. When replacing in a unit that has a MMI-1, then connect the MMI LED cable to J17. 8. Connect the Purge Signal cable to J1302. 9. Move 24V cable (from power supply) from WDB J1 to PECM3 TB1. 10.Add 24V power cable, 2021837-001 from PECM3 TB2 to WDB J1. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 32: System Controller Version 2.1 (syscon2.1)

    SYSCON2.1. The SYSCON2.1 provides communication between the Controller Board, I/O Boards and the EC operating modules. More information about the SYSCON can be found in the System Controller version 2 (SYSCON2.1) Installation Manual (Siemens part number A5E02643617001). Additional Functions ● Processing and communicating the ●...

  • Page 33: Mechanical

    I/O connections. Interface connectors to the front panel display, and communication connec‐ tors are also located and labeled on the front of the drawer. SYSCON2.1 Drawer Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 34: Syscon2.1 Components

    Communication and Control Board (CAC3) The Communication and Control board (CAC) is a standardized, single-board central processing unit for intended for use in Siemens products. For the Maxum family of products the third generation of the CAC board (CAC3) is used.

  • Page 35: Cac3 Status Indicator Leds

    Green – LED is green when link is in full duplex mode. Green RJ-45 Yel‐ Link Acknowl‐ Yellow – LED is on when link is active. Will flash off for transmit or receive activity. edge Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 36: Sib

    SYSCON2.1. Unlike the CAC3, the SIB3 is specific to the Maxum family of products (including the Maxum, the Maxum II, NAU). The combined SIB3 and CAC3 are an electrically and mechanically compatible replacement for the legacy SYSCON board in the Maxum.

  • Page 37

    C LEDs Ethernet to SNECON Power LEDs LEDs C-Pullup Active LEDs CAC3 Bridge LEDs DI Mode Switch (Set to Mode 2) PCI Slot LEDs Reset I/O Connector Figure 2-14 SIB3 LEDs and Switches Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 38

    Green – On when a valid CAN I/O message (other than a heartbeat reply) has been received and queued for processing LED9 RX Green – On when a CAN message (other than a heartbeat transmission) has been queued for sending to the CAN hardware Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 39

    Yellow – LED is on when link is active. Will flash off for transmit or receive activity. LED1 Speed Green – On – Speed is 100 Mb/sec (or auto-negotiating) Off – Speed is 10 Mb/sec (or disconnected) Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 40

    Purge SYSCON Debug Internal Serial Port 2 Serial Port 1 Direct Color Touchscreen I/O Mode Switch Serial Serial CAN Bus PCI Slots Port 3 Port 4 Reset I/O Connector Figure 2-15 SYSCON2.1 Connections Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 41

    The PCI slot connector has no electrical connection for CAN cards. Note Only use cards specified and sold by Siemens for the SYSCON2.1. Installation of a card that is not approved by Siemens into a SYSCON2.1 PCI slot, may damage both the card and the SYSCON2.1. Network Expansion Slot The Ethernet Switch Board (or Ethernet Switch Board with Fiber) plugs into this connector, located on the far right side of the SYSCON2.1.

  • Page 42

    ● I C Bus B includes the three I C connectors on the left as shown in the Connections photo. I C Bus B is supports2 future configuration changes in the Maxum II. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 43

    AO1 is used for the chart recorder but may be used as an AO. If the chart recorder is turned on it will control the AO’s output. The field wiring is connected to terminals 1 through 12 and 13 through 24. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 44: Ethernet Port Expansion

    ESB are available to connect to other Maxum network options, such as an ANCB installed in the SYSCON chassis or an external connection to a Siemens redundant network interface. The ESB (or ESBF) is required when a SYSCON2.1 is installed in the Maxum.

  • Page 45

    However, It is possible to use an ESB in slot 5 for external Ethernet, and an ESBF in another slot in the alternate configuration for internal Ethernet in cases where legacy SNECON modules must be used. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 46

    PCI slot. To reverse the bracket, unscrew it and turn it upside down. Then, connect the bracket using the opposite set of holes to align the bracket appropriately. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 47

    Electronic Compartment Component Descriptions and Maintenance Procedures 2.3 System Controller Version 2.1 (SYSCON2.1) Figure 2-18 ESBF Bracket Position (Default at left, Alternate at right) Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 48: Maintenance Overview

    SIB3, the database must be backed up to a workstation on the network or directly connected. 2.3.5 Service Procedures Preparing to Replace A Component General Analyzer Shutdown Procedure in the The analyzer must be shut down using the Maxum Edition II Analyzer General Maintenance Manual. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 49

    2. Remove the two 2mm screws and o-rings as shown in the illustration below. Early SIB3s had threaded studs, with two nuts with o-rings. 3. Remove the CAC3 by gently pulling it straight up. Avoid rocking or tilting motions. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 50

    2.3 System Controller Version 2.1 (SYSCON2.1) Early SIB3s with nuts on Current SIB3s have screws threaded studs in nuts swaged into the board securing the CAC3 to secure the CAC3 Figure 2-20 Mounting the CAC3 on the SIB3 Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 51

    – Power cable – Serial cables – CAN bus cable if present 7. If the existing CAC3 will be reused, remove it following the procedure in the preceding section and place in a static-protected area. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 52

    – Power cable – Serial cables – CAN bus cable if present 5. Install the ESB and reconnect the Ethernet cable from the rear RJ-45 connector to the horizontal RJ-45 conncector on the CAC3. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 53: Replacing The Lithium Battery On The Syscon Module Introduction

    For the SYSCON2 module it is a 3.0 V flat battery. The latest version does not require a battery. If a lithium battery is present in your unit, Siemens recommends that the battery be replaced every 5 years. The battery should only be replaced with an approved spare. Contact Siemens for a replacement.

  • Page 54: Analog And Digital Io

    C cable assembly. Although this cable assembly also supplies 24v, the board is only powered from the CAN edge connector unless the IO board is being used outside of the backplane in a special configuration. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 55: Io Card Common Features

    CAN IO boards. However, if an application needs more than two IO boards, a NAU can be installed. This allows installation of additional I C IO boards that the Maxum II can access remotely. C Bus Connections and Addressing There are two standard I C bus connections on the top of each I C IO board.

  • Page 56

    Electronic Compartment Component Descriptions and Maintenance Procedures 2.4 Analog and Digital IO Legacy position Default position I2C ID Switches Figure 2-21 IO Board Switches Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 57

    The Legacy option is designed to adjust for a non-standard configuration that may be in use on some systems. The Mode switch should be set to Mode 2 unless instructed differently by Siemens. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 58: Digital Io Card

    27 DO4 NO DO3 NO 30 29 DO3 Common DO2 Common 32 31 DO2 NC DO1 NC 34 33 DO2 NO DO1 NO 36 35 DO1 Common Figure 2-23 Digital IO Board (DIO_I2C) Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 59: Analog Io Board

    18AWG. 21 AO6 Current 23 AO5 Current 23 AO4 Current 27 AO3 Current AO_GND 29 AO2 Current 31 AO1 Current 33 DI2 DI Common 35 DI1 Figure 2-24 Analog IO Board (AIO_I2C) Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 60: Analog And Digital Io Board

    AO1 Current DO4 Common DO4 NC DO3 NC DO4 NO DO3 NO DO3 Common DO2 Common DO2 NC DO1 NC DO2 NO DO1 NO DO1 Common Figure 2-25 Analog and Digital I/O Board (ADIO_I2C) Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 61: Detector Personality Modules

    The method is the part of the application that contains the parameters for controlling the hardware used by one cycle clock. It provides peak areas and component concentrations and includes all cycle clock timed events. There is one cycle clock per method. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 62

    Part Number The Base3 DPM (Part Number A5E02645925001) is shipped with current analyzers. It can be used as a replacement part for earlier DPMs in Maxum I analyzers using an adapter, part number A5E34938458001. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 63

    (signal conditioning) Detector Color Touch Display Figure 2-27 FID, FPD, or Analog Input Detector Input Signal Path Network Analog Filament BaseDPM SYSCON PECM Detector Color Touch Display Figure 2-28 Filament Detector Input Signal Path Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 64

    5 V Power (FPD) Output Figure 2-29 Maxum II Detector Control Functions Location ID Switch The Location ID Switch, shown previously in the photograph, selects the DPM location that is incorporated in the address, to be reported in the results.

  • Page 65

    Temperature Control DPM . used in the RTD Temp Control Inputs Temp Setpoint Module Mounting Screw Access Status LEDs Temp Setpoint Module Mounting Location Figure 2-31 Temperature Setpoint Modules Installed on Left Side of Base3 DPM Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 66: Replacing A Base3dpm

    5. Disconnect the RTD temperature input cables (top rear of unit, if present). 6. If present, take out screws holding the IS ground cables (typically only installed on modular oven models). 7. Remove the nut on the bottom-front of DPM bracket. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 67

    9. Reconnect the RTD temperature input cables (top rear of unit, if present). 10.Reconnect the fIlament detector cable if present. 11.Reconnect the detector signal cable from the mezzanine module. General Analyzer Startup Procedure . 12.Follow the steps in the Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 68: Intrinsically-safe Thermal Conductivity Dpm (is-tcd3)

    The following two paragraphs apply only if this feature is used. The TCD DPM in the Maxum II, as well as the actual detector controlled by the TCD, is protected by intrinsic safety. Intrinsic safety is a method of protection where a circuit is designed such that it will not create a spark or other condition capable of causing ignition of flammable vapors or gases, even under fault conditions.

  • Page 69

    Intrinsic Safety Grounds: The intrinsically safe design of the IS-TCD3 DPM (not normally used with airless or airbath ovens) requires two ground connections to the chassis terminated to two different terminals. The Maxum II Modular Oven is shipped with these grounds connected correctly. Refer to the Maxum II Explosion Protection Safety Standards Manual (A5E02220442001) for more information on the safe use of intrinsically safe circuitry in the Maxum II.

  • Page 70: Replacing An Is-tcd Dpm

    5. If present, take out screws holding the IS ground cables (typically only installed on modular oven models). 6. Remove the nut on the bottom-front of DPM bracket. 7. Slide the unit forward to disengage the rear mounting lug. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 71: Replacing A Tc-dpm

    General Analyzer Shutdown Procedure . 1. Back up and shut down the unit using the 2. Open the electronics enclosure door. 3. Disconnect the RTD temperature input cables (top rear of unit, if present). Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 72: Sensor Near Electronics (sne) Software

    9. Follow the steps in the Sensor Near Electronics (SNE) Software The Sensor Near Electronics (SNE) is a software module that provides Maxum II Gas Chromatograph physics control, data analysis and data reduction. This virtual SNE operates as a set of intercommunicating tasks running on the pSOS+ operating system. These functions run on the SYSCON2.1 hardware in recent Maxum II analyzers.

  • Page 73

    The Computational Engine takes acquired chromatography data and performs system calculations. Most of these calculations are performed by functions contained in the EZChrom method, which provides all peak identifications and integration and response factors. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 74: Solid State Relay Module

    Note, however, that the older SSR is entirely enclosed in a sheet metal housing so human contact is not possible without disassembly of the module. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 75

    SSR is that the medium wattage version does not required heat dissipating fins on the back of the enclosure. The relays are equipped with heat sinks on the front of the module as shown in the photograph below. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 76: Solenoid Valves

    The SVCM electronics, whether onboard for the old version or on the PECM for the new version, receives commands from the SYSCON module (via the I C bus). Pulse timing is controlled from the SVCM electronics. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 77

    2.8 Solenoid Valves Solenoid Control Connectors (cable assembly to PECM) Plastic Tubing Connectors Solenoids Test Buttons (bottoms of solenoids) Solenoid Valve Tubing Manifold Legacy SVCM Present SVCM Figure 2-40 Solenoid Valve Control Module (SVCM) Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 78

    The SVCM is mounted in the Controller Enclosure on the manifold block. It can also be mounted in a Division 2 purge enclosure. Up to 3 SVCM assemblies can be mounted in the Maxum II. This allows for up to twelve 3-way solenoids and twelve 4-way solenoids. SVCM-1 is mounted in the lower right portion of the back wall.

  • Page 79

    2.8 Solenoid Valves Digital Control Channels On present Maxum II analyzers, the solenoid control circuitry is on the PECM. Digital outputs assigned to each solenoid valve are shown in the table below. If a digital output is 0 the valve is OFF;...

  • Page 80: Replacing A Solenoid Valve

    Before performing the removal and installation procedures, turn off primary AC power to the Maxum II from the main circuit breaker. Observe all site safety requirements before performing any repair or maintenance on the Maxum II.

  • Page 81: Electronic Pressure Control Module

    The EPC can be used for both carrier and fuel gas supply, which eliminates the less reliable mechanical regulation. Four independent EPCs can be installed in one Maxum II. Each EPC provides two independently regulated pressures for use on carrier and flame fuel sources in the oven.

  • Page 82

    The EPC provides electrically controlled pressure for helium, hydrogen and nitrogen carriers etc., as well as low flow and low pressure (<100psi) applications such as flame detector fuel. The EPC operates from 24VDC at 4 watts. Electrical connections are made using plug type connectors. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 83: Replacing An Epc Module

    EPC. Module control is established by sending parameters, such as setpoint pressures and ramp rates to the EPC. The EPC is used in the Maxum II to control the carriers and/or fuels for the detector modules. The EPC can also be used in field-mounted installations.

  • Page 84

    1st switch / connector Second switch / connec‐ 1st & 2nd switch / con‐ 3rd switch / connector pin set (binary 1) tor pin set (binary 2) nector pin set (binary 3) pin set (binary 4) Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 85: Color Touchscreen

    Keep touch screen surfaces clean and free of any dust and dirt to prevent small particles from scratching the touch screen under a sliding finger or stylus. Use a soft lint-free cloth dampened with isopropyl alcohol to clean contaminates from the touch screen. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 86: Replacement Procedures

    – Click “OK” to close the progress box. The .amd database file is saved to the hard drive of the PC. 3. Power down the analyzer. 4. Open the analyzer door. 5. Disconnect the door-to-chassis ESD ground wires. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 87

    7. Pull out the SYSCON2.1 drawer and disconnect the display cables from the SIB3 as shown below. The cables can then be pulled out through the rear of the cage. Display Cable Routing Display Cable Connections Figure 2-45 Display Cable Connectors In SYSCON2.1 Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 88

    8. Remove door by lifting it out of its hinge sockets and place on work surface. Figure 2-46 Removing or Installing Electronics Enclosure Door The following steps refer to the exploded assembly view below. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 89

    6 mounting studs for the LCD assembly. (E in exploded view) 10.Disconnect the three connectors of the display cable assembly; the backlight connector, the TIB cable connector, and the LCD connector. (B in exploded view) Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 90

    Three wire ties are required on the display steel slab. See the exploded view above and the illustration below for installation locations. When installing the wire tie for the LCD connector, orient the head flat to keep it clear of the protective cover when it is reinstalled. Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 91

    Install wire tie for backlight connector through hole adjacent to the cutout. TIB standoff near the through small hole at the corner of the intrinsic safety ground lugs. panel plate. Figure 2-49 Wire Tie Installation Detail Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 92

    Electronic Compartment Component Descriptions and Maintenance Procedures 2.10 Color Touchscreen Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 93: Specifications

    Specific installations may require additional environmental constraints. See the custom documentation package. Note: If the Maxum II is exposed to high condensing humidity with the electronics open or without dry purge air applied, then it must be allowed to re-stabilize at the above stated conditions for at least 8 hours before electrical power is applied.

  • Page 94

    (for Airbath psig) oven) Vortex cooler Instrument air 300 to 600 kPa (43.5 to 87 130 to 170 l/min psig) PTGC Instrument air 400 to 600 kPa (58 to 87 210 l/min psig) Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 95

    ● Center-to-center: 1,120 mm (44") in all cases Table 3-8 Dimensions Weight 77 kg (170 lbs.) application dependent Overall Dimensions Height: 1053.6 mm (41.5”) (including mounting hardware) Width: 752 mm (26.6”) Depth: 417.4 mm (16.4”) Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 96

    Specifications Figure 3-1 Maxum II Airless/Airbath Dimensions Table 3-9 Configuration Oven options ● Single isothermal airbath oven or divided airbath oven with two independent isothermal zones ● Single oven or two independent, airless ovens in separate oven areas. ● Programmable-temperature (PTGC) oven Detector options ●...

  • Page 97

    ● I2C_AIO: 8 analog outputs, 8 analog inputs, 2 digital inputs ● I2C_DIO: 6 digital inputs and 8 digital outputs ● I2C_ADIO: 4 digital inputs and 4 digital outputs, 4 analog inputs and 4 analog outputs Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 98

    ● Typical consumption quantity: 2 000 l/month per detector module Combustion air ● Reference air (< 1 ppm THC, O concentration 20 to 21%). Synthetic air, or supply through instrument air with catalytic purification (optional). ● Typical consumption quantity: 26 000 l/month Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 99: Index

    Index ABH1, 74 ABH2, 74 Fuses, 74 Heater Termination Plug, 31 IO Board DI Mode Switch, 57 IO Board Status LEDs, 57 Solid State Relay Module, 74 TEMP CONTROL, 31 Maxum II Reference Manual Manual, 7/2017, 2000596-001...

  • Page 100

    Index Maxum II Reference Manual Manual, 7/2017, 2000596-001...

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