Microx User Manual
Issue Date:
19/03/2019
F/W Ver.:
V233P
The
User Instruction Manual
Oxygen Analyser
Rev.:
1.2
Part Number.: 05-670
Page 1: ...Microx User Manual Issue Date 19 03 2019 F W Ver V233P The User Instruction Manual Oxygen Analyser Rev 1 2 Part Number 05 670...
Page 2: ...ENTS 16 4 2 1 Menu 1 Calibrate sensor 18 4 2 2 Menu 2 Analogue output FSD 19 4 2 3 Menu 3 Set 4 mA output 19 4 2 4 Menu 4 Set 20 mA output 20 4 2 5 Menu 5 Analogue Output Simulation 20 4 2 6 Menu 6 Fa...
Page 3: ...tive 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 ve...
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...
Page 5: ...table risk survey being undertaken by the user Key design features are Compact enclosure Simple keypad calibration facility utilising onboard LCD display 4 20mA current source output for gas level ind...
Page 6: ...ny 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...
Page 7: ...rrent Source Relays Optional 3 Single pole change over Rating 6 Amps 250 v AC Fuses Fuse 500mA anti surge on board fuse for circuit protection Additional Features Display 4 Digit 7 Segment Display Key...
Page 8: ...odule It is located next to the power input terminals 3 3 Mounting Options Din Rail Mounting Version Overall dimensions 86mm H x 69mm W x 58mm D Panel Mounting Version Overall dimensions 96mm H x 96mm...
Page 9: ...ng version View A Note Terminals 1 2 3 are for the connection of Electro Chemical and Zirconia or ppm Sensors Terminals 4 5 are for the connection of Electro Chemical ppm Sensors only See Sensor for c...
Page 10: ...Zirconia or ppm Sensors Terminals 4 5 are for the connection of Electro Chemical ppm Sensors only See Sensor for connection details For Zirconia Sensors connect the sensor power wires into terminals 1...
Page 11: ...erminals 1 2 3 are for the connection of Electro Chemical and Zirconia or ppm Sensors Terminals 4 5 are for the connection of Electro Chemical ppm Sensors only See Sensor for connection details For Zi...
Page 12: ...onia Sensors set Flow Restrictor to achieve a flow rate of 250ml m Regulator set to 5 PSIG Max Tee connection Ntron supplied Ensure correct orientation as shown Optional Isolation Valve for PPM Sensor...
Page 13: ...SIG Max For Electrochemical Zirconia Sensors set Flow Restrictor to achieve a flow rate of 250ml m Optional Isolation Valve for PPM Sensors Hand or Solenoid operated Optional Isolation Valve for PPM S...
Page 14: ...d 3 7 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...
Page 15: ...ical 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 E...
Page 16: ...access the Menus first press the MENU button on the Analyser keypad The Analyser display will show the word PASS Enter the Password depending on the menu access required The numerical Passwords are to...
Page 17: ...ure Level 1 Level 2 Level 3 Password Password Password None 1331 12231 Menu Menu Menu E 1 E 2 E 3 E 3 E 4 E 4 E 5 E 5 E 5 E 6 E 8 E 8 E 8 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 1...
Page 18: ...R button to span the sensor Press the MENU button to close the menu system Note The sensor span setting will be displayed as a percentage value on exit while the MENU key is pressed Note that this val...
Page 19: ...ystem Note The Sensor FSD will be displayed on exit while the MENU key is pressed 4 2 3 Menu 3 Set 4 mA output Monitor the current sourced from the analogue output of the OEM module using a multimeter...
Page 20: ...close the menu system Note The 20 mA factor will be displayed on exit 4 2 5 Menu 5 Analogue Output Simulation The Microx analogue output can be tested for functionality via menu 5 This option allows...
Page 21: ...n data for the selected sensor excluding those set at the factory Press the MENU button to open the menu system Using the NEXT and PREVIOUS buttons select menu option E 6 Press ENTER button Hold for 5...
Page 22: ...ill alternate between the current value and diagnostic code E 8x where x is 0 Sensor signal A to D counts low ppm range 1 Sensor signal A to D counts high ppm range 2 Sensor signal A to D counts vol r...
Page 23: ...ammed in to the module A zero offset figure allows accurate calibration of ppm sensors that do not give a zero output for zero gas The zero offset value is expressed in PPM oxygen and takes a value of...
Page 24: ...lue used should be about 2500 The display indicates the gain setting when the Up DOWN keys are pressed The gain is between 0 and 31 a typical value would be 20 Apply 1 8 mV to the sensor input Press M...
Page 25: ...alue used should be about 3500 The display indicates the gain setting when the Up DOWN keys are pressed The gain is between 0 and 31 a typical value would be 3 Apply 13 mV to the sensor input Press ME...
Page 26: ...DECREASE buttons to set the required damping level Press ENTER to store the new value Note Pressing the MENU button rather than the ENTER button exits without any change Press MENU to close the menu...
Page 27: ...ill be displayed to confirm the sensor zero has been performed Note Pressing the MENU button rather than the ENTER button exits the zero feature without performing the calibration Press the MENU butto...
Page 28: ...ted It takes a value of between 0 and 9 where 0 is no rejection and 9 is the maximum rejection Setting the noise rejection results in a two second delay for fast changing gas levels Press MENU to open...
Page 29: ...levels This option allows the user to configure the operation of the relays Press MENU to open the menu system Using the NEXT and PREVIOUS buttons select menu option E 17 Press ENTER The display displ...
Page 30: ...ENTER to store the new value in the memory Note Pressing the MENU button rather than the ENTER button exits without any change Press MENU to close the menu system 4 2 19 Menu 19 Alarm hysteresis The...
Page 31: ...tem Using the NEXT and PREVIOUS buttons select menu option E 20 Press ENTER The display shows the current status On or Off Use the UP DOWN keys to set the desired status On or Off Press ENTER to store...
Page 32: ...epending on sensor type and application A reasonable schedule should be arrived at by the user Sensors utilising Zirconia Technology These are very stable over their normal lifespan and usually do not...
Page 33: ...Microx User Manual Rev 1 2 V233P Page 33...
