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Summary of Contents for Ntron MICROX
- Page 1 Microx User Manual Oxygen Analyser User Instruction Manual Part Number.: 05-670 Issue Date: 19/03/2019 F/W Ver.: V233P Rev.:...
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Page 2: Table Of Contents
Microx User Manual Introduction ................5 ..............5 ICROX ODULE ................PERATION ..............6 ENSOR NPUTS Specification ................7 MICROX Module ................. 8 ................. 8 USES ............8 OUNTING PTIONS ............9 IELD ONNECTIONS #1 ....12 ECOMMENDED AMPLING YSTEM IPING ) ...... - Page 3 No special personnel protective measures are necessary but it must be ensured that the user connects a suitable power source to the Microx Analyser within the voltage range specified for this product. The Panel and Wall mount versions can be mains powered (110-240VAC) option at time of order.
- Page 4 Microx User Manual Revision Summary • Implemented Password System (E:20) • Implemented Factory Restore Function (E:6) • Implemented View Serial Number facility in Software via Menu E:8.
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Page 5: Introduction
PCB mounted screw terminals for all connections. • RS232 output for transmission of live data to a PC. 3.1 Operation When power is first applied to the Microx module an initialisation procedure is performed as follows: • All the display segments are displayed •... - Page 6 Microx User Manual Sensor Inputs The Microx Module is designed to interface with any one of the following 3 principal types of sensor technology. Electro-Chemical Solid State Zirconia Dioxide A number of different measurement ranges are possible as follows; 0-1000 ppm O2 0-10000 ppm O2 0-25% Vol.
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Page 7: Specification
Microx User Manual PECIFICATION Supply Input Voltage 24V DC nominal.(Good quality power supply) Options: 110-240VAC Panel and Wall mount versions only. 140 mA at 24VDC nominal , all relays energised, Supply current: 20 mA drawn on current loop. Outputs 4-20mA analogue output (10-bit resolution) Analogue Output: Current Source. -
Page 8: Microx Module
Microx User Manual 3 MICROX M ODULE 3.2 Fuses A 500mA Anti-surge fuse is fitted to the OEM module, which is connected between the power supply and the OEM module. It is located next to the power input terminals. 3.3 Mounting Options Din Rail Mounting Version. -
Page 9: Field Connections
Microx User Manual 3.4 Field Connections All connections to the module are provided in the form of screw terminals. The pin- outs for each Microx version are given below. Din Rail Mounting version. Electrical Interface Terminals/connections as per view ‘A’... - Page 10 Microx User Manual Panel and Wall Mount Versions - DC Supply option. (Terminals located at the rear of the Module, identified as below as viewed) Supply by Customer Note: Additional Terminals fitted on Wall Mount DC version with Zirconia Sensor.
- Page 11 Microx User Manual Panel and Wall Mount Versions - AC Supply option. (Terminals located at the rear of the Module, identified as below as viewed) Electrical Interface Terminals/connections as per view ‘A’ Mains Input Terminals 85-264VAC View ‘A’ Note:Terminals 1,2 & 3 are for the connection of Electro-Chemical % and Zirconia % or ppm Sensors.
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Page 12: Recommended Sampling System Piping #1
Microx User Manual Recommended Sampling System Piping #1 (for stub tube type Sensor connection) Sensor Optional Isolation Valve for PPM Sensors, Hand or ‘Tee’ connection. Solenoid operated (Ntron supplied) Ensure correct orientation as shown. Internal ‘T’ piece ‘T’ Sample Fitti... -
Page 13: Recommended Sampling System Piping #2
Microx User Manual 3.5 Recommended Sampling System Piping #2 (for flow-through type Sensor connection) Optional Isolation Valve for PPM Sensors, Hand or Solenoid operated Sample Exhaust Attach a suitable length of piping Optional for the exhaust Isolation Valve as illustrated. -
Page 14: Rs232 Connections
Microx User Manual RS232 connections Contact Ntron for details if required. Analogue Output The analogue output provides a means of indicating to external equipment (e.g. data loggers, remote displays) the gas levels currently being detected by the system. The output is that of a Current Source (4-20mA), where 4mA represents zero gas and 20mA represents gas at the sensor FSD. -
Page 15: Software Features
Previous (Decrement) Numerical value 3 4.1 Password The Microx module uses a password system to restrict the end user from carrying out certain changes that may compromise the use of the equipment. The Password feature may be Enabled or disabled. -
Page 16: Menu Options And Password Assignments
Microx User Manual The menu structure and Password system is explained on the following pages. 4.2 Menu options and password assignments Menu option Function Calibrate Sensor Analogue output FSD Set 4 mA Set 20 mA Analogue Output Simulation Factory Restore... - Page 17 Microx User Manual Password Structure MENU MENU MENU MENU MENU MENU Level 1 Level 2 Level 3 Password Password Password None 1331 12231 Menu Menu Menu E:9* E:10** E:11 E:12 E:13 E:14 E:15 E:16 E:17 E:17 E:17 E:18 E:18 E:18...
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Page 18: Menu 1 - Calibrate Sensor
Microx User Manual Menu 1 – Calibrate sensor 4.2.1 • Press the MENU button to open the menu system. • Using the NEXT and PREVIOUS buttons select menu option: • Press ENTER. • Apply a known concentration of gas (applicable to sensor type) at a flow rate of between 100 to 500 ml/m. -
Page 19: Menu 2 - Analogue Output Fsd
Microx User Manual Menu 2 – Analogue output FSD 4.2.2 • Press the MENU button to open the menu system. • Using the NEXT and PREVIOUS buttons select menu option: • Press ENTER. • Using the INCREASE and DECREASE buttons adjust the FSD to the required level. -
Page 20: Menu 4 - Set 20 Ma Output
Note: The 20 mA factor will be displayed on exit. Menu 5 – Analogue Output Simulation 4.2.5 The Microx analogue output can be tested for functionality via menu 5. This option allows the user to simulate the analogue output. •... -
Page 21: Menu 6 - Factory Restore
Microx User Manual Menu 6 – Factory Restore 4.2.6 This option allows the user to restore the configuration data to the factory default values. Warning A restore will overwrite all previous calibration data for the selected sensor excluding those set at the factory. -
Page 22: No Function
Microx User Manual 4.2.7 No Function 4.2.8 Menu 8 - Diagnostics This feature is a view-only feature. No configuration changes are possible from within this menu. • Press the MENU button to open the menu system. • Using the NEXT and PREVIOUS buttons select menu option: •... -
Page 23: Menu 9 - Factory Only
Microx User Manual Menu 9 – Factory Only 4.2.9 Warning Customer adjustment of this setting is not permitted. The module will be factory set prior to shipment to the correct Sensor supplied with the Analyser. 4.2.10 Menu 10 – Zero offset For ppm configured modules a “Sensor Zero Offset”... -
Page 24: Menu 11 - Ppm Sensor Gain
Microx User Manual 4.2.11 Menu 11 – PPM sensor Gain This option is used to allow the user to adjust the sensor gain for optimal performance. Care should be taken when using this option, which is normally only used when a new sensor is fitted. -
Page 25: Menu 12 - % Vol Sensor Gain
Microx User Manual 4.2.12 Menu 12 – % vol sensor gain This option is used to allow the user to adjust the sensor gain for optimal performance. Care should be taken when using this option, which is normally only used when a new sensor is fitted. -
Page 26: Menu 13 - Sensor Damping
Microx User Manual 4.2.13 Menu 13 – Sensor damping Oxygen sensors output change when subjected to pressure changes. The damping option is used to allow the user to reduce the effects of sudden changes by applying digital filtering. The larger the number the more the signal damping that is applied. -
Page 27: Menu 15 - Electronics Zero
Microx User Manual 4.2.15 Menu 15 – Electronics zero Warning Customer operation of this function is not recommended. The Electronic Zero operation has been completed prior to shipment and under normal circumstances, is not required to be actioned again. Performing this function may result in operational errors if not done correctly. -
Page 28: Menu 16 - Noise Rejection
Microx User Manual 4.2.16 Menu 16 – Noise Rejection Warning Customer adjustment of this setting is not recommended. The module will be factory set prior to shipment at a value appropriate to the sensor type fitted. Otherwise changing this value may limit the performance and, in extreme cases, the instrument may no longer detect gas. -
Page 29: Menu 17 - Relay
Microx User Manual 4.2.17 Menu 17 – Relay The unit is fitted with three relays that are operated in conjunction with one of three alarm levels. Relay 1 is associated with alarm level 1. Relay 2 is associated with alarm level 2. -
Page 30: Menu 18 - Alarm Levels
Microx User Manual 4.2.18 Menu 18 – Alarm levels This option allows the user to set the operation of the alarm levels. There are three alarms levels associated with 3 relays. Alarm level 1 is associated with relay 1. Alarm level 2 is associated with relay 2. -
Page 31: Menu 20
Microx User Manual 4.2.20 Menu 20 The Password function can be enabled or disabled in this Menu. • Press MENU to open the menu system. • Using the NEXT and PREVIOUS buttons, select menu option: E:20 • Press ENTER. The display shows the current status On or Off •... - Page 32 & S OUTINE AINTENANCE ERVICING The Microx module will provide reliable and fault free service when given regular maintenance and calibrations. Routine Inspection and Maintenance It is advisable to periodically inspect the Microx module installation: Clean gas detector head using a clean DAMP cloth.
- Page 33 Microx User Manual Rev. 1.2 V233P Page 33...
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