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LDetek LDmox User Manual

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Summary of Contents for LDetek LDmox

  • Page 2 LDMox Trace impurity analyzer USER’S MANUAL V1.3 Printed in Canada Copyright 2025...

  • Page 3: Table Of Contents

    9.1 Parts Identification ....................27 9.2 Back Panel Identification ..................28 9.4 Electrical Schematic LDMOX ................29 9.4 Piping Schematic LDMOX (QCM and Senz-TX) ..........30 9.5 Piping Schematic LDMOX (Easidew and Senz-TX) ..........31 9.6 Enclosure Dimensions .................... 32...

  • Page 4: Forewarning

    1. Forewarning This manual is required to be read by any user wanted to use the LDMox Trace Impurity analyzer. It contains important information to successfully operate the instrument. LDetek assumes that all operators have taken the time to read this information before install, operate and troubleshoot the analyzer.

  • Page 5: Warranty And Service Policies

    THIS WARRANTY IS THE ONLY WARRANTY MADE BY LDETEK INC. WITH RESPECT TO THE GOODS DELIVERED HEREUNDER, AND NO EMPLOYEE, REPRESENTATIVE OR OTHER PERSON OR ENTITY IS AUTHORIZED TO ASSUME FOR LDETEK INC ANY OBLIGATION OR LIABILITY BEYOND OR AT VARIANCE WITH THIS WARRANTY IN CONNECTION WITH THE SALE OF LDETEK PRODUCTS.

  • Page 6: Service Policy

    6. Write the RMA number on the outside of the box. 7. Use an LDetek approved carrier. Also, the delivery must be sent to LDetek facilities. LDetek will not accept airport to airport delivery. 8. LDetek will not cover the transportation fees.
  • Page 7 LDetek Inc. reserves the right to interrupt all business relationships and warranty or services if there is any tentative from any customers to reverse engineering any of LDetek products or to tamper with any sealed module.

  • Page 8: Cautions & Warnings

    3.Cautions & Warnings Improper installation, operation or service of this analyzer may cause damage to the analyzer and void the manufacturer’s warranty. 3.1 Electrical shock hazard Do not operate unless the cabinet is securely closed. Servicing this instrument implies possible exposure to shock hazard level voltages which can cause death or serious injury.

  • Page 9: Declaration Of Conformity

    4.Declaration of conformity Contact factory for the latest version available.

  • Page 10: Specifications

    5.Specifications Easidew Sensor model Senz-Tx Senz-Tx Measurement Zirconia (ZR) Electrochemical (EC) Quartz Crystal Ceramic sensor technology Sensor manufacturer NTRON NTRON Michell Instruments Michell Instruments Impurity detected Sample gas multiple gases multiple gases Multiple gases Multiple gases 0-10ppm 0-10ppm 0-10ppm 0-10ppm Ranges (default) 0-100ppm...

  • Page 11: Installation

    WARNING: BEFORE CONNECTING A SAMPLE INLET GAS, BE SURE THE DETECTOR VENT CONNECTION IS AT ATMOSPHERIC PRESSURE. Turn on the LDMox unit and connect the Ethernet cable to your computer to communicate with the unit. Be sure the operating parameters are configured the same way it appears on the Operating Parameter sheet included with the instrument.
  • Page 12 Typical installation diagram...

  • Page 13: Hardware Description & Maintenance

    7.Hardware Description & Maintenance The LDMOX has major components included in the chassis. This section will describe each component that can be replaced for maintenance or upgrade. 7.1 Detector modules for trace H2O and O2 Quartz crystal module for trace H2O...
  • Page 14 • The change in the oscillation is evaluated by switching the gas inside the sensor and by measuring the response delta. For sampling response, the sensor is balanced between a dry gas source and the sample source. The difference is then calculated. The same principle is applied for the span gas calibration. However, this time the comparison is between a dry gas and a source of wet gas.
  • Page 15 Flow diagram Sampling position : The V4 diaphragm valve switch between sample gas and dry gas every 30 seconds. The response delta between the dry gas and the sample gas is then measured at the quartz crystal module (QCM). The flow rate inside the sensor is stabilized at 100sccm by the flow orifice R11 mounted at the outlet of the sensor.
  • Page 16 Span calibration position : The V4 diaphragm valve switch between the dry gas and the wet gas every 30 seconds. This position is used for span calibration purpose. The span calibration frequency depends of the requirements but is generally required every 2 weeks for check spot.

  • Page 17: Motherboard And Mcu

    For a Zirconia sensor, the replacement frequency is 3-5 years. 7.2 Motherboard and MCU The electronic board controls all components inside the analyzer: flow readings, detector signals, alarms and 4-20mA and all other options available. This board must be replaced only if you had the confirmation from LDetek.

  • Page 18: Sample And Reference Gas Flow Regulators

    When replacing this motherboard be sure to avoid any electrostatic contact. 7.3 Sample and reference gas flow regulators An internal mini pressure regulator is mounted to maintain the pressure inlet stable at 4psig to ensure proper flow rate of 100ml/min goes to each of the H2O and O2 sensors. The flow rate is maintained using a fix flow orifice calibrated for respectively 100ml/min at a pressure of 4psig.
  • Page 19 Span gas: 100ml/min coming from the reference gas that pass through the permeation device Sample gas: 100ml/min coming from the sample port. Having a constant bypass flow when not in use ensures the quick response time and stability of the measurement. The diaphragm must be changed every 3-5 years depending on operations.

  • Page 20: Operation

    8.Operation The LDMOX web interface is available through the Ethernet port. Refer to the tag on the front of the device to get the proper web link associated to your instrument. e.g.: http://LDMox 8.1 Analysis menu This is the main menu of the instrument and the menu where the analyzer must stay for normal operations.

  • Page 21: Calibration Menu

    8.2 Calibration menu This menu is used to calibrate the instrument. REZERO: Will calibrate the zero with the zero-value entered RESPAN: Will calibrate the span with the span value entered Click APPLY after REZERO or RESPAN to apply the new calibration Historic button is available to access previous calibrations.

  • Page 22: Settings Menu

    8.2 Settings menu This menu is used to configure many parameters of the analyzer. This menu is accessible to any user.
  • Page 23 Methods: Method settings and parameters for each method (One method is generally used for a specific sample gas)
  • Page 24 Sensors: Used to setup the sensor graph parameters Flow: Used to setup flow reading parameters...
  • Page 25 Valve /On/Off): Valve settings parameters Relay: Relays can be used with alarms...
  • Page 26 4-20mA: Used to calibrate the 4-20mA analog output. You must force at 4mA and measure with an external amperemeter and enter the real current value. Same apply to 20mA value. Oven: Used to configure the operating parameters of the ovens...
  • Page 27 Quartz: Used to configure the operating parameters of the quartz crystal sensor...

  • Page 28: Diagnostic Menu

    8.3 Diagnostic menu This menu is only used for troubleshooting and diagnostic. It is not required for standard operations. Analog input: Give diagnostic and real-time values of flows and sensors Digital Output: Use to force a relay/valve to be activated for testing. Analog Output: Use to force an analog output for testing.

  • Page 29: Alarms Menu

    8.4 Alarms menu The alarm menu is available at the bottom of the screen by a double click on the ‘’active alarm’’. It then pop up the active or non-active alarm historic.

  • Page 30: Drawings & Schematics

    9.Drawings & Schematics 9.1 Parts Identification Micro Controller Unit MotherBoard Pressure regulator for actuation Flow Sensors Sample flow regulator on top Quartz and reference crystal flow regulator sensor for on bottom trace H2O Solenoid valves 3 streams (3x) for diaphragm diaphragm valve switching actuation...

  • Page 31: Back Panel Identification

    9.2 Back Panel Identification 1/8’’ compression type Connectors Stainless Steel fitting for gas connections Ethernet Connector Backpanel connector R1 :used with 4- 20mA 1 R2 :used with 4- 20mA 2 R1 and R2 can also be used as Alarms...

  • Page 32: Electrical Schematic Ldmox

    9.4 Electrical Schematic LDMOX...

  • Page 33: Piping Schematic Ldmox (Qcm And Senz-Tx)

    9.4 Piping Schematic LDMOX (QCM and Senz-TX)

  • Page 34: Piping Schematic Ldmox (Easidew And Senz-Tx)

    9.5 Piping Schematic LDMOX (Easidew and Senz-TX)

  • Page 35: Enclosure Dimensions

    9.6 Enclosure Dimensions...

  • Page 36: Ordering Information And Spare Parts

    LD-H2O-T LDMOX fuse kit FK-LDMOX Sample Flow controller Svalve-LDMOX Complete Mother Board PCB assembly MB-LDMOX Sample Flow Sensor FT-LDMOX Micro Controller Unit MCU-LDMOX Rear Panel assembly BP-LDMOX 24VDC Power Supply PS-24V-LDMOX Entire LDMOX frame with top and bottom Frame-LDMOX cover...
  • Page 37 Notes: ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________...
  • Page 38 Notes: ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________...
  • Page 39 Thank you for using LDetek Products...

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