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Summary of Contents for PST NTRON Microx
- Page 1 Oxygen Analyzer (LT/LP) User Manual NT-UM-2106-EN-00 NT-UM-2106-EN-00 07/2024 ProcessSensing.com P/N: 08-458...
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Page 2: Revision History
For contact information, visit ProcessSensing.com Ntron Gas Measurement Ltd. Is part of the Process Sensing Technologies Group plc (PST). This document is the property of Process Sensing Technologies and may not be copied or otherwise reproduced, communicated to third parties, nor stored in any Data Processing System without the express written authorization of Process Sensing Technologies. -
Page 3: Before Using Your Microx
Microx Oxygen Analyzer (LT/LP) User Manual Before using your Microx This user manual applies to Microx DIN rail oxygen analyzers with a serial number in this format: 2XXXXX, and version firmware. For Microx models with a different serial number format, please contact us at ie.ntron.sales@processsensing.com for the relevant user... -
Page 4: Table Of Contents
Microx Oxygen Analyzer (LT/LP) User Manual Contents Revision History ....................i Before using your Microx................ii Safety information ..................ii Introduction .................... 1 Overview ..................1 Operation ..................1 Sensor Inputs.................2 Installation ....................3 Fuses ....................3 Mounting ..................3 Electric Connections ..............5 2.3.1 Sensor Detail ................6 2.3.2 Wiring information ..............7... - Page 5 Microx Oxygen Analyzer (LT/LP) User Manual 3.1.9 E:9 ................... 16 3.1.10 E:10 ..................16 3.1.11 E:11 Sensor Gain 1............... 16 3.1.12 E:12 Sensor Gain 2............... 17 3.1.13 E:13 Sensor Damping ............18 3.1.14 E:14 ..................18 3.1.15 E:15 ..................18 3.1.16 E:16 Noise Rejection............
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Page 6: Introduction
Microx Oxygen Analyzer (LT/LP) User Manual Introduction 1.1 Overview Microx has been designed to allow Original Equipment Manufacturers (OEM) to use the module within their own equipment. This oxygen analyzer is based on the common Microx module platform, hence the menu system is common throughout the Microx range. Some menu features are not relevant to the analyzer when connected to an LP or LT sensor;... -
Page 7: Sensor Inputs
Microx Oxygen Analyzer (LT/LP) User Manual The display then shows the gas level. The Microx analyzer is now operational. 1.3 Sensor Inputs Microx interfaces with our LT or LP sensors, which use zirconia oxygen sensing technology. The sensor is designed for a long service life with minimal intervention. -
Page 8: Installation
Microx Oxygen Analyzer (LT/LP) User Manual Installation 2.1 Fuses This Microx Analyzer is fitted with a 1 A anti-surge fuse, which is connected between the power supply and the analyzer. The fuse is located next to the analyzer’s power input terminals. The sensor power supply unit (PSU) has electronic internal short circuit and overload protection. - Page 9 Microx Oxygen Analyzer (LT/LP) User Manual A screwdriver is always needed to remove the unit from the DIN rail. Cable Trunking and recommended clearances 30mm 30mm Figure 2. Installation on DIN rail ProcessSensing.com...
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Page 10: Electric Connections
Microx Oxygen Analyzer (LT/LP) User Manual 2.3 Electric Connections All connections to the module are provided in the form of screw terminals. Figure 3. Analyzer and PSU electrical connectors ProcessSensing.com... -
Page 11: Sensor Detail
Microx Oxygen Analyzer (LT/LP) User Manual 2.3.1 Sensor Detail LT and LP sensors are typically installed into pipelines or a chamber inside a machine or process. The sensors’ connectors interface with an extension cable suitable for the application, which must be securely fixed and protected from damage. -
Page 12: Wiring Information
Microx Oxygen Analyzer (LT/LP) User Manual 2.3.2 Wiring information Figure 5. Wiring your LT/LP sensor ProcessSensing.com... -
Page 13: Location
Microx Oxygen Analyzer (LT/LP) User Manual 2.4 Location The LT and LP Sensors operate at elevated temperatures. The sensor bodies can reach temperatures of around 150 °C (302 °F). This part of the sensor is protected from direct contact with a heat-resistant sleeve, which should always be fitted to the sensor. -
Page 14: Orientation
Microx Oxygen Analyzer (LT/LP) User Manual The heat-resistant sleeve is fitted to the sensor once it has been installed. The cable path for the sensor signal cable and intermediate connector is free from obstruction and potential sources of heat, cutting or crushing. -
Page 15: Analog Output
Microx Oxygen Analyzer (LT/LP) User Manual Figure 7. Sensor cable-types 2.7 RS232 Contact us if you require this connection. 2.8 Analog Output The analog output provides a means of indicating to external equipment (e.g. data loggers, remote displays) the gas levels currently being detected by the system. -
Page 16: Software Features
Microx Oxygen Analyzer (LT/LP) User Manual Software Features The menu system featured within the Microx module allows all calibration and configuration activities to be performed. NOTE: It is important that the Microx module is correctly configured for the sensor in use, prior to performing any feature available in the menu system. -
Page 17: Menu Options
Microx Oxygen Analyzer (LT/LP) User Manual 3.1 Menu options Menu ID Function Calibrate sensor (Range 1/Range 2) Analog output FSD Set 4 mA Set 20 mA Sensor simulation Restore Not Applicable -DO NOT USE Diagnostics Not Applicable -DO NOT USE E:10 Not Applicable -DO NOT USE E:11... -
Page 18: E:1 Calibrate Sensor
Microx Oxygen Analyzer (LT/LP) User Manual 3.1.1 E:1 Calibrate Sensor It is important the sensor is powered-up for at least 30 minutes before calibration. This will ensure it has reached normal operating temperature and the output reading is stabilized. (In the procedure below, the password function is not disabled to allow all the possible steps in the sequence to be shown) Press to enter the menu system. -
Page 19: E:2 Analog Output Fsd
Microx Oxygen Analyzer (LT/LP) User Manual 3.1.2 E:2 Analog Output FSD Press to enter the menu system. to select menu option Press then select (ppm) or (%). Using adjust the FSD to the required level. Press NOTE: Pressing instead of exits the sensor FSD feature without any change. -
Page 20: E:5 Analog Output Simulation
Microx Oxygen Analyzer (LT/LP) User Manual 3.1.5 E:5 Analog Output Simulation The Microx analog output can be tested for functionality via menu E:5. This option allows the user to simulate the analog output. Press to enter the menu system. Using select menu option E:5. -
Page 21: E:8 Diagnostics
Microx Oxygen Analyzer (LT/LP) User Manual 3.1.8 E:8 Diagnostics This feature is a view-only feature. No configuration changes are possible from within this menu. Press to enter the menu system. Using select menu option E:8. Press The display will alternate between the current value and diagnostic code E:8x: where x is: 0 Sensor signal, A to D counts low ppm range. -
Page 22: E:12 Sensor Gain 2
Microx Oxygen Analyzer (LT/LP) User Manual The display indicates the gain setting when are pressed. The gain is between 0 and 31, a typical value is 20. Apply 1.8 mV to the sensor input: Press to enter the menu system. Using select menu option E:11. -
Page 23: E:13 Sensor Damping
Microx Oxygen Analyzer (LT/LP) User Manual to set the required signal level. NOTE: When are being used, the display shows the amplifier gain setting as a number between 0 and 31. The larger the number, the higher the gain and the lower the signal reading. Press to store the new value. - Page 24 Microx Oxygen Analyzer (LT/LP) User Manual fitted. Otherwise, changing this value may limit the performance and, in extreme cases, inhibit the instrument from detecting gas. The unit has a noise rejection value associated with the reading and displaying of the measured gas level. The noise rejection value is expressed in number of readings that must be within approximately 20 counts of each other on the A to D converter before the display is updated.
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Page 25: E:17 Relay
Microx Oxygen Analyzer (LT/LP) User Manual Each range noise rejection differs in the equivalent gas-level as follows: Range Fixed A to D Typical Equivalent gas %Vol Counts span factor level %Vol 0.00 - 0.0200 0.05 0.0001 0.02 - 0.1000 0.0006 0.10 –... -
Page 26: E:18 Alarm Levels
Microx Oxygen Analyzer (LT/LP) User Manual NOTE: Pressing instead of exits the sensor gain feature without storing changes. Press to exit the menu system. 3.1.18 E:18 Alarm Levels NOTE: The following procedure assumes the Password feature is temporarily disabled. This option allows the user to set the operation of the alarm levels. There are three alarms levels associated with two user configurable relays. -
Page 27: E:19 Alarm Hysteresis
Microx Oxygen Analyzer (LT/LP) User Manual 3.1.19 E:19 Alarm Hysteresis The analyzer has a hysteresis value associated with the alarm levels to avoid relay chattering as the unit goes in and out of alarm conditions. The hysteresis value is expressed as a percentage of the alarm set point and takes a value of between 0 and 10. -
Page 28: E:22 Dac Output Setting - Log Or Linear
Microx Oxygen Analyzer (LT/LP) User Manual to set the desired range, then press to store it. NOTE: Pressing instead of exits the sensor gain feature without storing changes. Press to exit the menu system. 3.1.22 E:22 DAC Output Setting – Log or Linear The analyzer can be configured to give the DAC output in either Log or Linear. -
Page 29: Routine Maintenance & Servicing
Microx Oxygen Analyzer (LT/LP) User Manual Routine Maintenance & Servicing A Microx fitted with an LT/LP sensor is a low-maintenance unit with long calibration intervals. We recommend that on initial installation, a calibration check is performed by applying a known concentration of oxygen (certified to a standard) suitable for the analyzer and sensor unit. - Page 30 Microx Oxygen Analyzer (LT/LP) User Manual A faulty or incorrectly connected sensor could give cause a fault message on the Microx display. Do not expose the sensor to moisture in an un-powered state. If this happens, allow it to dry out. If necessary, do this by applying a clean dry gas.
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Page 31: Appendices
Microx Oxygen Analyzer (LT/LP) User Manual Appendices Appendix A – Technical Specifications Sensor Zirconia Measuring Range 0…1000, 0…10,000 ppm (Range 1) 0…25 % (Range 2) Output Resolution 10-bit resolution Lower Detection Limit (LDL) 1 ppm or 0.01 % within selected range Sample Flow Rate 100…500 mLPM (application dependent) - Page 32 Appendix B – Quality, Recycling, and Warranty Information Ntron Gas Measurement Ltd. is part of the Process Sensing Technologies (PST) Group plc. The PST Oxygen group of companies - Aii, Ntron and SST - comply with applicable national and international standards and directives.
- Page 33 Microx Oxygen Analyzer (LT/LP) User Manual This page is intentionally blank. ProcessSensing.com...
- Page 34 ProcessSensing.com Ntron Gas Measurement Ltd. Is part of the Process Sensing Technologies Group plc. © 2024 Process Sensing Technologies Ntron Ltd. Mullaghboy Industrial Park, Navan, Co. Meath, Ireland...
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