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Issue:

1.14

Rev. 1.0

Page 7

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Содержание Microx Online

Страница 1: ...Microx Online Issue Number 1 14 Issue Date 17 07 2018 The User Instruction Manual Oxygen Analyser With Electrochemical Sensor Rev 1 0 ...

Страница 2: ...mA output 16 4 1 5 Menu 5 Analogue Output Simulation 16 4 1 6 Menu 6 Sensor selection 17 4 1 7 17 4 1 8 17 4 1 9 17 4 1 7 Menu 7 17 4 1 8 Menu 8 Diagnostics 17 4 1 9 Menu 9 Restore 18 4 1 10 Menu 10 Zero offset 18 4 1 11 Menu 11 PPM sensor Gain 19 4 1 12 Menu 12 vol sensor gain 19 4 1 13 Menu 13 Sensor damping 20 4 1 14 Menu 14 New sensor data 20 4 1 15 Menu 15 Electronics zero 21 4 1 16 Menu 16 N...

Страница 3: ...t enclosure Simple keypad calibration facility utilising onboard LCD display 4 20mA current source output for gas level indication 10 bit resolution 230VAC or 24VDC power supply RS232 output for transmission of live data to a PC Status indicating light tower for audible visual warning as an option The Sample gas is supplied from and exhausted to the sample location to the via pipework provided and...

Страница 4: ...x series of Oxygen Analyser controllers and contains some Menu programming options which are not relevant to this Microx product and its mode of operation Such menu s and information are highlighted in this user manual as Customer Access Not Permitted and other various warnings against adjustment of such menu options Please observe these prohibitions to ensure correct operation of the Microx Onlin...

Страница 5: ...c calibration and replacement after 1 to 2 years operation application dependent It needs to be ensured that if contaminants are present in the process from where the sample is being taken these are prevented from entering the pipework and sensor Contaminants may include particulates or certain heavy vapours Inline Filtration of the sample may be required Sensor is not be disposed of into the gene...

Страница 6: ...No of Channels 1 Sensor Vol oxygen 0 25 Electrochemical OC 32 Relays 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 Keypad 4 Button Keypad Software Software configuration calibration and data logging provided by PC communications RS232 Output Weight 1 3Kg Dimensions 219 265 inc ...

Страница 7: ...Issue 1 14 Rev 1 0 Page 5 3 PHYSICAL DATA 3 1 Mounting and Dimensions Fig 1 shows the overall dimensions of the Gasenz on line ...

Страница 8: ... field connection points are illustrated below Cable glands are provided for power and interface cabling The User is to make all field connections in suitable cable to local regulation codes and taking into account the power requirements of the instrument as detailed in section 2 Specification of this manual The AC supply connection should be protected by an upstream protective device 24VDC is ava...

Страница 9: ...Issue 1 14 Rev 1 0 Page 7 ...

Страница 10: ...Issue 1 14 Rev 1 0 Page 8 Internal layout ...

Страница 11: ...ise the safety of the process being measured Factors to take into consideration when choosing a location to mount the Microx Online Location of suitable process sample point Visibility of status indicator tower Light Tower Sufficient space on vertical surface or wall for secure mounting and access to the instrument Nature of gas to be measured Pressure of gas to be measured at point of sample take...

Страница 12: ...Issue 1 14 Rev 1 0 Page 10 ...

Страница 13: ...RxD TxD 3 2 0V 0V 5 9 3 5 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 ...

Страница 14: ... Menu Open Close B Enter C Next Increment D Previous Decrement 4 1 Password The Microx Online uses a password system to restrict the end user from carrying out certain changes that may compromise the use of the equipment The menu system is split into two areas user and engineer The user has access to menu options E 1 to E 9 while the engineer has access to menu options E 1 to E 19 See the end of t...

Страница 15: ...Sensor simulation E 6 Customer Access Not permitted E 7 Customer Access Not permitted E 8 Diagnostics E 9 Restore E 10 Customer Access Not permitted E 11 Customer Access Not permitted E 12 Vol Sensor Gain E 13 Sensor Damping E 14 New Sensor Data E 15 Electronic Zero E 16 Noise Rejection E 17 Relay E 18 Alarm Levels E 19 Alarm Hysteresis ...

Страница 16: ... the menu system Using the NEXT and PREVIOUS buttons select menu option E 1 Press ENTER Allow time for sensor to respond stabilise Using the INC and DEC buttons set the reading to that of the calibration gas level Press ENTER to span the sensor will be displayed to confirm the sensor span has been performed Note Pressing the MENU button rather than the ENTER button exits the span feature without p...

Страница 17: ...Note The Sensor FSD will be displayed on exit while the MENU key is pressed 4 1 3 Menu 3 Set 4 mA output Monitor the current sourced from the analogue output of the OEM module using a multimeter set to read milliamps Press the MENU button to open the menu system Using the NEXT and PREVIOUS buttons select menu option E 3 Press ENTER Using the INCREASE and DECREASE buttons adjust the output to 4mA P...

Страница 18: ...e the menu system Note The 20 mA factor will be displayed on exit 4 1 5 Menu 5 Analogue Output Simulation The Gasnz analogue output can be tested for functionality via menu 5 This option allows the user to simulate the analogue output Press the MENU button to open the menu system Using the NEXT and PREVIOUS buttons select menu option E 5 Use the UP and DOWN button to increase or decrease the analo...

Страница 19: ...pen the menu system Using the NEXT and PREVIOUS buttons select menu option E 8 Press ENTER 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 1 Sensor signal A to D counts high ppm range 2 Sensor signal A to D counts vol range 3 Firmware version The diagnostic code can be selected by pressing the UP button Press MENU...

Страница 20: ...Issue 1 14 Rev 1 0 Page 18 4 1 9 Menu 9 Restore 4 1 10 Menu 10 Zero offset Customer adjustment of this setting is not permitted Customer adjustment of this setting is not permitted ...

Страница 21: ...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 MENU to open the menu system Using the NEXT and PREVIOUS buttons select menu option E 12 Press ENTER The display shows the sensor peak output level Use the INCREASE and DECREASE buttons to set the required signal level ...

Страница 22: ...ASE 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 system Note The signal damping setting will be displayed on exit while the MENU key is pressed 4 1 14 Menu 14 New sensor data This option allows the initial sensor calibration data to be set It is used to p...

Страница 23: ...tton to open the menu system Using the NEXT and PREVIOUS buttons select menu option E 15 Press ENTER Press ENTER to zero the sensor will 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 button to close the menu system ...

Страница 24: ...akes a value of between 0 and 9 where 0 is no rejection and 9 is the maximum jejection Setting the noise rejection results in a two second delay for quick changing gas levels Press MENU to open the menu system Using the NEXT and PREVIOUS buttons select menu option E 16 Press ENTER The display shows the Noise rejection value Use the UP DOWN keys to set the desired level Press ENTER to store the new...

Страница 25: ... 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 displays r 1 Use the UP DOWN keys to select the desired relay The display will show the following E r Normally energized rising alarm d r Normally de energized rising alarm E F Normally energized falling alarm d...

Страница 26: ... A 1 Use the UP DOWN keys to select the desired alarm level Press ENTER The display shows the alarm level Use the UP DOWN keys to set the desired alarm level Press 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 1 19 Menu 19 Alarm hysteresis The unit has a hysteresis value associate...

Страница 27: ...ed where applicable The maximum time interval between routine inspections should be assessed by the calibrating personnel and will depend upon the environment in which the equipment is installed 5 2 Sensor Replacement This procedure requires powering off the Instrument Open the instrument door Disconnect the oxygen Sensor connection cable from the terminals on the internal board Next unscrew the h...

Страница 28: ...Issue 1 14 Rev 1 0 Page 26 5 3 Password ...

Страница 29: ...Issue 1 14 Rev 1 0 Page 27 ...

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