10yr O2NE & Safe-Ox - Analox Military Systems
Contents
1. A full calibration check should be performed on the Ax O2NE Safe Ox when it fails to calibrate using the quick calibration check In order to perform a calibration check you will need the following equipment 1 Test Gas with 24 oxygen in nitrogen helium 5 tolerance 2 Fine control valve Part No SA7FLOWIN 3 Flow adaptor kit Part No P0120 651K Then follow the procedure 1 Remove the flow adaptor and gasket from it s protective backing 2 Fitthe flow adaptor including it s gasket to the O2 sensor and connect with tubing the cylinder and set the fine control valve to half scale allowing the gas to flow over the sensor 3 Enter Technician Mode by pressing the mode switch 3 times If entered successfully the green LED will flash off for 1 5 seconds and on for 0 5 of a second 4 Select auto calibration by pressing the mode switch 4 times The 2 Red Alarm LED s will light up to show you are now in this mode 5 Press the mode switch 2 times to start the Auto Calibration the Red Alarm LED s will turn off and the Green LED will continue to flash 6 Wait one minute for the instrument to adjust When the instrument has a new calibration value the buzzer will sound one bleep and all the LED s will be off 7 Accept this new calibration value by pressing the mode switch 2 times The green LED will flash to show the instrument has accepted the new oxygen value NA LO Document Ref P0120 820 03 May 2013 Page 15 12. 10yr O2NE amp Safe Ox User Manual Analox Ltd 15 Ellerbeck Court Stokesley Business Park Tech Support M 44 7917 Analox North Yorkshire TS9 5PT UK T 44 0 1642 711400 F 44 0 1642 713900 W www analox net E info analox net 764348 This support line is closed on UK public holidays 10yr O2NE amp Safe Ox User Manual List of contents 1 Safety 3 2 Package contents checklist cnica 5 ONES CUIU 6 3 1 Sento cU 6 3 2 10 iiec icd Dp utu RE 6 4 Installation of the product ee ertet ete te ie 7 CS MER EUR 7 4 2 Wirng installauon irte ioter e e Eee dns cada 7 5 Options nein 8 5 1 AG supply models eric ete tor Rae kt ree ehe 8 5 2 DG supply models reine etre ee eed Dou ads 8 5 3 er EET Cx td ER ia aes 8 5 4 Alarm relay output models nette teer ea 11 5 9 Pelay WD u EUER 11 5 6 Battery back up ee de dd ea Coh EINEN EE 12 5 7 Afto 20mA output 12 6 E 13 6 1 Normal operato ERR 13 6 2 Alam indications ed een 13 7 E 14 Bui m 14 7
3. 03 May 2013 Page 7 10yr O2NE amp Safe Ox User Manual 5 Options available 5 1 AC supply models Mains powered Ax O2NE Safe Ox s are pre wired with a mains cable fitted with a plug suited to the destination country Where internal plug fuses are fitted these are 3 amp Ensure that the unit is connected to the correct supply voltage i e 110 or 230V AC Where no fuse is fitted in the plug the instrument should be powered from a 3 amp fused outlet The Ax O2NETM Safe Ox M is fitted with an internal fuse which is rated at 500mA 5 2 DC supply models DC powered Ax O2NE Safe Ox s require a DC supply in the range 9 24V DC A 2m cable is factory fitted to the instrument The DC supply should be connected to this cable as follows 1 Blue wire negative OVolts 2 Red wire positive 9 24Volts 5 3 Alarm repeaters The Alarm repeater has four status indicators and a Mode button which mimic the button and indicators on the main O2NE Safe Ox enclosure An 8 metre 8 core cable is pre wired to the Ax O2NE Safe Ox on units to be fitted with an alarm repeater This ensures that for a basic installation there is no need to dismantle the Ax O2NE Safe Ox main unit A maximum of three repeaters may be fitted in a daisy chain configuration To connect and disconnect a Quick Connect repeater 1 Disconnect the power supply from the Ax O2NE V Safe Ox M 2 Insert the connector on the end of the cable
4. 2 Test gas with 24 oxygen in nitrogen helium 5 tolerance 3 Fine control valve Part No SA7FLOWIN 4 Flow adaptor kit Part No P0120 651K Then follow the procedure for the particular instrument type Ax O2NE Fit the flow adaptor including it s gasket to the O2 sensor and connect with tubing the cylinder and set the fine control valve to half scale allowing the gas to flow over the sensor After a few moments the Alarm 1 alarm should operate followed a little later by the Alarm 2 alarm Remove the test gas It will take a little while for the N2 mixture to diffuse out of the instrument sensor allowing the unit to recover to its normal non alarm condition Document Ref P0120 820 03 May 2013 NA LO Page 16 10yr O2NE amp Safe Ox User Manual Ax Safe Ox a Fit the flow adaptor including it s gasket to the O2 sensor and connect with tubing the 10096 nitrogen cylinder and set the fine control valve to half scale allowing the gas to flow over the sensor b After a few moments the Alarm 2 alarm should operate Remove the test gas It will take a little while for the 2 mixture to diffuse out of the Instrument Sensor allowing the unit to recover to its normal non alarm condition d Fit the flow adaptor to the O2 sensor and connect with tubing the 2496 oxygen cylinder and set the fine control valve to half scale allowing the gas to flow over the sensor e After a few moments the Alarm 1 alarm sho
5. Fault FAST BUZZER Output too High FLASHINGS FLASHINGS FLASHING AND Os Cell Fault FAST BUZZER Output too Low OFF OFF FLASHING AND VERY FAST Mm BUZZER ide Note that alarm levels may be set at different values depending on customer requirement A calibration error or a cell fault requires the attention of a service engineer A recalibration procedure may overcome the problem Only when Alarm 1 and Alarm 2 are enabled Document Ref P0120 820 03 May 2013 NA LO Page 18 10yr O2NE amp Safe Ox User Manual Ax Safe Ox OK LAMP ALARM1 LAMP ALARM2 LAMP FAULT LAMP MEANING 9 lt E Power Power Off ON BLIP OFF BLIP OFF ___ __ Normal Operation FLASHING AND O Level is SLOW BUZZER gt 23 0 FLASHING FLASHING AND O Level is MED BUZZER lt 19 5 OFF OFF OFF FLASHING AND Calibration Error SLOW BUZZER at Switch On OFF FLASHING OFF FLASHING AND Cell Fault FAST BUZZER Output too High OFF FLASHINGS FLASHING FLASHING AND Cell Fault FAST BUZZER Output too Low Note that alarm levels may be set at different values depending on customer requirement calibration error or a cell fault requires the attention of a Service Engineer recalibration procedure may overcome the problem Only when Alarm 1 and Alarm 2 are enabled Alternative alarm setpoints for this Instrument are as shown below Serial number ome 7 A LO Document Ref 0120 820 03
6. release of the Mode switch the display will continue to show the new value Accept the new setting by pressing the Mode switch twice or alternatively ignore the new setting by pressing the switch once This will return to the technician mode 8 To exit from technician mode press the Mode switch once The O2NE Safe Ox then restarts by performing the normal power on sequence 4 flashes N A LO Document Ref 0120 820 03 May 2013 Page 17 10yr O2NE amp Safe Ox User Manual 7 5 Fault conditions During normal operation the instrument carries out a continuous self test procedure operation is satisfactory the Good OK status indicator will be on blinking off momentarily every few seconds a If there are no indicator lamps lit on the O2NE Safe Ox check that power is connected and that the fuses are OK b If the Good OK indicator is off and the alarm indications are believed to be incorrect carry out a quick calibration If this fails to correct the problem contact your qualified service engineer A summary of the indicator lamps and buzzer operations is shown below Ax O2NE OK LAMP ALARM1 LAMP ALARM2LAMP FAULT LAMP MEANING GREEN RED RED YELLOW or OFF Power Off FLASHING AND OFF OFF O Level is SLOW BUZZER lt 19 5 FLASHING FLASHING AND OFF O Level is MED BUZZER lt 18 OFF OFF FLASHING AND Calibration Error SLOW BUZZER at Switch On OFF FLASHING AND O Cell
7. 0yr O2NE amp Safe Ox User Manual To return to normal operation press the mode switch once The LED s and buzzer will illuminate sound 4 times before returning to normal operation If during the one minute wait period the red or amber LED s are illuminated consult the table below ALARM1 LAMP ALARM2 LAMP FAULT LAMP MEANING ACTION RED RED YELLOW Ensure the calibration gas is 2496 oxygen in nitrogen helium with 2 tolerance Ensure the Calibration gas is Calibration gas is below allowable 24 oxygen in range nitrogen elium with 2 tolerance Calibration gas is above allowable range Internal fault Contact Analox Note If at any time you send the wrong instruction and would like to abort press the mode Switch once and wait 20 seconds this should bring you back to technician mode Press the mode switch once again this should bring you back to normal operation the LED s and buzzer will illuminate sound 4 times Alternatively disconnect the power supply to the Ax O2NE Safe Ox wait a moment and re connect power 7 3 Alarm checks To verify that the indicators and the audible alarms are working press the Mode switch on the Ax O2NE Safe Ox or any of its repeaters The indicators and the audible alarm will pulse four times To verify that the alarm levels are correctly set you will need the following equipment 1 A test gas cylinder containing 10096 nitrogen Part No SA7L2001
8. 2 Full calibration clieck ectetur aede d 15 7 3 Alarm 25 anatase de 16 7 4 Adjusting alarm set 17 7 5 Fault Conditions 18 8 Specifications RE 20 DIIS 21 10 Declaration of Gontormilty re ern 22 N A LO Document Ref 0120 820 03 May 2013 Page 1 10yr O2NE amp Safe Ox User Manual Document Ref P0120 820 03 May 2013 NA LO Page 2 1 10yr O2NE amp Safe Ox User Manual Safety information Every gas monitor installation should be risk assessed The correct location of monitor s must consider the potential sources of gas leaks and the location of expected human occupation in the area Where large areas must be monitored it is often advised that no single monitor should cover a volume in excess of 80m3 The installation of more monitors should be considered where an area is complex in shape filled with obstacles has a lack ventilation or air circulation or if there are dead zones where gas can collect The Ax O2NE V Safe Ox M is designed to be compliant with the following standards EN61010 1 2001 IEC61010 1 2001 It is designed to be safe at least under the following conditions 1 Indoor use 2 Altitude up to 2000m 3 Temperature 5 C to 40 C 4 For use in atmospheres between
9. 6 alarm below above the alarm set point before the alarm cancels Optional items fitted to or supplied with the unit may include the following 1 Remote alarm repeater 2 One or two medium duty relays 3 Test gas flow indicators and control valves 4 Flow adaptor Items marked with an asterisk do not need to be specified at the time of order and may be retro fitted Document Ref P0120 820 03 May 2013 NA LO Page 6 10yr O2NE amp Safe Ox User Manual 4 Installation of the product 41 Wall mounting The Ax O2NE Safe Ox should be mounted onto a wall at normal working head height using the mounting lugs a paper drilling template is included in section 12 of this manual Use the paper template to drill the 4 required holes in the wall and use the rawl plugs and screws provided to mount the unit It is not necessary to dismantle the Ax O2NE Safe Ox main unit in any way prior to installation You need to ensure the mains plug fused at 3 amps is in easy reach of a power socket _ i TFT The alarm repeater housing also has wall mounting lugs 4 2 Wiring installation is necessary to identify the model of Ax O2NE V Safe Ox M prior to installation calibration certificate accompanying each instrument will clearly identify the information required ENSURE THAT THE ELECTRICAL SUPPLY TO THE INSTRUMENT IS SWITCHED OFF WHILST INSTALLING ANY WIRING KKK NA LO Document Ref P0120 820
10. 950mbarA to 1050mBarA 5 Maximum relative humidity 80 for temperatures up to 31 C decreasing linearly to 50 relative humidity at 40 C 6 Mains voltage supply fluctuations not to exceed 10 of the nominal voltage 7 Impulse withstand over voltage category Il of IEC 60364 4 443 8 Pollution degree 2 9 Mains voltage 230V AC Not adjustable Instrument will be factory set 110V AC Not adjustable Instrument will be factory set 24V DC Not adjustable Instrument will be factory set 10 Mains power Less than 5VA 110V AC and 230V AC versions Less than 5W 24V DC version 11 Mains frequency 50 60Hz 12 The remote alarm repeater has ingress protection to IP43 direct sprays of water up to 600 from the vertical in accordance with EN 60529 1991 A1 All other units have ingress protection to IP65 low pressure water jets from all directions and totally protected from dust in accordance with EN 60529 1991 A1 13 Insulation Reinforced insulation class product according to IEC536 14 15 Not for use in corrosive or explosive atmospheres Not approved for use in vehicles ships or aircraft Fuse ratings 230V AC 500mA F rating 250V 20mm x 5mm glass cartridge 110V AC 500mA F rating 250V 20mm x 5mm glass cartridge 9 24V DC 200mA AS rating 250V 20mm x 5mm glass cartridge Battery back up N A LO Document Ref 0120 820 03 May 2013 Page 3 10yr O2NE amp Safe Ox User Manual The
11. May 2013 Page 19 10yr O2NE amp Safe Ox User Manual 8 Specifications O range 0 1 to 25 Sensor accu racy Better than 0 7596 O2 over 5 0 to 25 096 O2 Better than 1 0096 O2 over 0 1 to 5 0 O2 Response time T90 60 Seconds Operating temperature 0to 40C Temperature effect 0 296 Reading C Warm up time 10 Seconds Weight without cables O2NE Safe Ox 600g Alarm Repeater 150g Dimensions O2NE Safe Ox 175x105x75 mm Alarm Repeater 155x72x45 mm IP rating O2NE Safe Ox IP65 Alarm Repeater IP43 Sensor type Electro Chemical Cell Display 4 digit Liquid Crystal Display Alarms 2 x Alarm Visual Indicators 1 x System Fault Indicator 1 x Status Indicator Common Audible Alarm Relays One or Two Optional Alarm Relays with changeover contacts assigned to Alarm 1 Alarm 2 or System Fault Contact Rating 230V AC or 30V DC at up to 2A Contacts are non latching Fail Safe Output 2 wire 4 to 20mA Max load 150 Q Power supply options a 210 250V A C supply b 110 120V A C supply c 9 24V DC supply Document Ref P0120 820 03 May 2013 Page 20 NALO 10yr O2NE amp Safe Ox User Manual 9 Disposal NENNEN According to WEEE regulation this electronic product can not be placed in household waste bins Please check local regulations for information on the disposal of electronic products in your area NA LO Document Ref P0120 820 03
12. May 2013 Page 21 10yr O2NE amp Safe Ox User Manual 10 Declaration of conformity Manufacturers name Analox Ltd Manufacturers address 15 Ellerbeck Court Stokesley Business Park Stokesley North Yorkshire TS9 5PT It is declared that the following product Product name Ax O2NE Ax Safe Ox Product code AA1 Conforms to all applicable requirements of EN50270 1999 EN61000 6 3 2001 A11 2004 BS EN 61010 1 2001 IEC 61010 1 2ed AS61610 1 2003 Australia 8 New Zealand The above product complies with the requirements of the EMC Directive 89 336 EEC as amended The above product complies with the requirements of the Low Voltage Directive 73 23 EEC as amended The above product is approved for use in Europe CB Test Certificate NO44944 The above product complies with the Australian and New Zealand EMC requirements for C Tick marking Signed on behalf of Analox Ltd Date 01 06 2012 Signed 4 FATE U A o nd Mj Name Mark Lewis Position Managing Director Document Ref P0120 820 03 May 2013 Page 22 NALO
13. arm indications Ax Safe Ox If the Ax Safe Ox detects an O2 concentration which is greater than the high alarm level then the Alarm 1 indicator will begin to flash and the buzzer will sound at its slow speed If the measured concentration of O2 falls below the low alarm level then the Alarm 2 indicator will begin to flash and the buzzer will sound at its medium speed On standard units the alarms are self cancelling when the O2 concentration returns to a level within the alarm thresholds Alternatively latched alarm versions are available on which the alarm conditions will be maintained until the Mode switch has been pressed to accept the alarm and the gas concentration has returned to a level within the alarm thresholds Momentarily pressing the Mode button on either the Ax O2NE Safe Ox or any alarm repeaters in the absence of any alarm conditions causes an alarm test to be performed The indicator lamps will flash 4 times and the buzzer will sound In all circumstances the alarm repeater will mimic the status indications and buzzer of the main unit Units fitted with relays are configured such that relays may operate in conjunction with Alarm1 or Alarm2 They are factory set to be energised in the absence of alarms and de energised in the presence of alarms They may be factory configured in the opposite sense if required Ax O2NE If the Ax 2 getects an O2 concentration which is less than the first alarm lev
14. battery back up is non repairable Please return faulty units to Analox for refurbishment replacement 4 to 20mA or 0 1V output Connected equipment must meet the requirements for reinforced insulation NOTE If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired Document Ref P0120 820 03 May 2013 NA LO 4 10yr O2NE amp Safe Ox User Manual 2 Package contents checklist On receipt of the Ax O2NE Safe Ox please check you have the following Ax O2NE Safe Ox main unit and alarm repeater User manual Test certificate Rawl plugs and screws for wall mounting Drilling template SITO Any optional items ordered such as 1 Additional alarm repeater s each with 8 metres of interconnecting cable 2 Relay junction box NA LO Document Ref P0120 820 03 May 2013 Page 5 10yr O2NE amp Safe Ox User Manual 3 Overview Two variants of this product are available The Ax 2 O2 detector is designed to detect the presence of low oxygen in ambient air Ax Safe Ox O2 detector is designed to detect the presence of high and low oxygen in ambient air Instrument Name Application Sensor Type Ax O2NE Fixed instrument configured Partial pressure as standard with two depletion alarms representing warning 19 596 and danger 1896 levels of oxygen Ax Safe Ox Fixed instrument configur
15. ed Partial pressure as standard with two pre set alarm levels at 23 0 and 19 5 O2 3 1 Partial sensor This type of sensor measures the partial pressure of oxygen in the atmosphere where the instrument is located Therefore it is directly affected by fluctuations in atmospheric pressure To counteract this a pressure sensor is used to compensate for potential changes in atmospheric pressure The sensor is unaffected by the presence of helium in the atmosphere 3 2 Setup Different versions of the instrument allow operation from 1 210 250V AC supply 2 110 120V AC supply 3 9 24V DC supply The Ax O2NE Safe Ox is intended to be used as permanent installation It provides a digital readout of oxygen plus audible and visual alarms to potentially dangerous deficiencies abundancies of oxygen in the air surrounding the instrument The instruments use an electrochemical cell together with state of the art technology built in an IP65 splash proof housing and is designed to provide long trouble free service with minimum maintenance The Ax 2 has two pre set alarm levels at 19 5 and 1896 O2 The alarms are set with a small hysteresis which means the O2 concentration has to rise above the alarm set point before the alarm cancels Ax Safe Ox has two pre set alarm levels at 23 0 and 19 596 O2 The alarms are set with a small hysteresis which means the O2 concentration has to fall 23 096 alarm or rise 19 59
16. el then the Alarm 1 indicator will begin to flash and the buzzer will sound at its slow speed If the measured concentration of O2 continues to fall below the second alarm level then the Alarm 2 indicator will begin to flash and the buzzer will sound at its medium speed The Alarm 1 indicator will continue to flash On standard units the alarms are self cancelling when the O2 level rises above the alarm limits Alternatively latched alarm versions are available on which the alarm conditions will be maintained until the Mode switch has been pressed to accept the alarm and the gas level has risen above the alarm threshold Momentarily pressing the Mode button on the Ax 2 or any alarm repeaters in the absence of any alarm conditions causes an alarm test to be performed The indicator lamps will flash 4 times and the buzzer will sound In all circumstances the alarm repeater will mimic the status indications and buzzer of the main unit Units fitted with relays are configured such that relays may operate in conjunction with Alarm1 or Alarm2 They are factory set to be energised in the absence of alarms and de energised in the presence of alarms They may be factory configured in the opposite sense if required N A LO Document Ref 0120 820 03 May 2013 Page 13 10yr O2NE amp Safe Ox User Manual 7 Maintenance 7 1 Calibration Note Gases used on the Ax O2NE Safe Ox must be manufactured to a 2 tole
17. into the socket on the base of the Alarm Repeater 3 Restore power to the Ax O2NE Safe Ox Press the mode button on the repeater once and ensure that the four indicators flash Note that in the presence of a genuine alarm the test feature is disabled Document Ref 0120 820 03 May 2013 N A LO Page 8 10yr O2NE amp Safe Ox User Manual 5 3 1 To connect a Hard Wired Remote Alarm Repeater 1 Disconnect the power supply from the Ax O2NE Safe Ox 2 Open the Remote Alarm Repeater unit by removing the 4 screws in the front of the case and carefully pulling the case apart The connecting wires from the Ax O2NE Safe Ox pass through one of the cable glands on the Remote Alarm Repeater 3 Terminate the wires in accordance with the table below REPEATER CABLE COLOURS Ax 50 Type e EA _3 7 2 6 5 _ _5 4 e 3 2 1 _ 4 Replace the lid of the Remote Alarm Repeater insert and tighten the 4 screws and mount it in the desired position using the 2 fixing lugs 5 Restore power to the Ax O2NE Safe Ox Press the switch on the Remote Alarm Repeater once and ensure that the four indicators flash Note that in the presence of a genuine alarm this test feature is disabled 5 3 2 To connect a Quick Connect Remote Alarm Repeater 1 Disconnect the power supply from the Ax O2NE Safe Ox 2 Insert the connector on the end of the wire into e
18. ither socket on the bottom of the Remote Alarm Repeater 3 Restore power to the Ax O2NE Safe Ox Press the switch on the Remote Alarm Repeater once and ensure that the four indicators flash Note that in the presence of a genuine alarm this test feature is disabled NA LO Document Ref P0120 820 03 May 2013 Page 9 10yr O2NE amp Safe Ox User Manual 5 3 3 To connect a Strobe LED Remote Alarm Repeater 1 Disconnect the power supply from the Ax O2NE Safe Ox 2 Open the Remote Alarm Repeater unit by removing the 4 screws in the front of the case and carefully pulling the case apart The connecting wires from the Ax O2NE Safe Ox pass through one of the cable glands on the Remote Alarm Repeater Terminate the wires in accordance with the table below REPEATER CABLE COLOURS Repeater Type 1 Type 2 Cat 5 Termina NUN Note 4 Connect the free wire Brown or Orange to A50 231 main PCB at JP13 terminal 5 6 Replace the lid of the Remote Alarm Repeater insert and tighten the 4 screws and mount it in the desired position using the 2 fixing lugs 7 Restore power to the Ax O2NE Safe Ox Press the switch on the Remote Alarm Repeater once and ensure that the four indicators and the LED strobe flash Note that in the presence of a genuine alarm this test feature is disabled Document Ref P0120 820 03 May 2013 NA LO Page 10 10yr O2NE amp Safe Ox User Manual 5 4 Alarm relay output
19. ld remain powered for at least 30 hours to ensure the battery back up is fully charged and will provide back up power for a minimum of 4 hours in the event of mains power failure 5 7 4to 20mA output models You may have ordered your Ax O2NE Safe Ox with a 4 to 20mA output A 2m cable is factory fitted to the instrument The 4 to 20mA output current is generated by the instrument The customer system should be connected to this cable as follows and as per the following drawing 1 Blue wire 4 to 20mA negative 2 Red wire 4 to 20mA positive 4 MAIN UNIT Customer System POWER FACTORY FITTED WIRING SUPPLY 4 to 20mA Cable marked 4 20mA OUTPUT Current is generated by Analox instrument Document Ref 0120 820 03 May 2013 N A LO Page 12 10yr O2NE amp Safe Ox User Manual 6 Operation 6 1 Normal operation When the Ax O2NE Safe Ox is turned on it will take approximately 10 seconds to warm up and stabilise During this period the Good OK and Fault status indicators will be turned on After the initial stabilising period has expired the Fault status indicator will turn off The Good OK status indicator will be illuminated and flash off briefly every few seconds indicating normal operation The status indicators on any alarm repeaters will mimic this operation On display models the display will briefly read 8 8 8 8 on power up before reverting to the O2 reading 6 2 Al
20. models You may have ordered your Ax O2NE Safe Ox with a relay The relay contacts are Volt Free single pole changeover rated 250vAC 30vDC 2 amps The relay is non latching This means the relay will only initiate when gas is present As standard the relays are setup in a fail safe configuration This means that the relay is energised during normal operation Please note that on power up the relay is only energised after the 10 second warm up period See below for details of how the relay should be connected 5 5 Relay wiring The cable gland is for cables of outside diameter between 5 and 7mm if cable fitted is outside that range a suitably specified cable gland must be used Ensure that the gland is properly tightened Test that the cable is adequately gripped by the cable gland Ensure that the cable is suitable for purpose the load is within the limits of the relay 240VAC 28VDC 2 amps and the insulation of the external circuit meets the requirements for basic insulation 240VAC 28VDC 2 amps After completing wiring ensure that the terminal box cover is securely replaced NC COM RELAY TERMINAL BOX TERMINATIONS RELAY TERMINAL BOX TERMINATIONS A veut CUSTOMER FITTED WIRING POWER SUPPLY FACTORY FITTED WIRING NA LO Document Ref P0120 820 03 2013 Page 11 10yr O2NE amp Safe Ox User Manual 5 6 Battery back up When this option is fitted the Ax O2NE Safe Ox shou
21. rance Quick calibration check A quick calibration check should be performed on the Ax O2NE Safe Ox when it is first installed then at no greater than 18 monthly intervals This ensures that the sensor is giving an accurate oxygen reading In order to perform a calibration check you will need the following equipment 1 Test Gas with 24 Oxygen in Nitrogen helium 5 tolerance 2 Fine control valve Part No SA7FLOWIN 3 Flow adaptor kit Part No P0120 651K Then follow the procedure 1 Remove the flow adaptor and gasket from its protective backing 2 Fitthe flow adaptor including it s gasket to the O2 sensor and connect with tubing the cylinder and set the fine control valve to half scale allowing the gas to flow over Document Ref P0120 820 03 May 2013 N A LO Page 14 10yr O2NE amp Safe Ox User Manual 3 When the display reading settles at 24 1 press the Mode button for 2 seconds On releasing the button there should be a confirming beep The O2NE Safe Ox is calibrated If the confirming beep is not heard or the display reading does not settle between 23 and 2596 you need to carry out a full calibration as described in Section Full calibration check If the beep is repeated and the LEDs on the unit flash intermittently on releasing the button this indicates an internal fault and the unit requires repair Contact Analox in this instance 7 2 Full calibration check
22. uld operate f Remove the test gas lt will take a little while for the mixture to diffuse out of the instrument sensor allowing the unit to recover to its normal non alarm condition 7 4 Adjusting alarm set points The procedure is very similar for setting either Alarm 1 or Alarm 2 1 Whilst the O2NE Safe Ox is switched on enter technician mode by pressing the mode switch 3 times If entered successfully the green LED will flash off for 1 5 seconds and on for 0 5 of a second 2 From technician mode press the Mode switch 2 times to set Alarm 1 or 3 times to set Alarm 2 The buzzer will bleep on each press If this is done successfully the instrument will show the Fault indicator and the appropriate Alarm indicator If this is done inadvertently or if another mode is selected press the Mode switch once to return to technician mode and then repeat this selection 3 The display will indicate the present value of the alarm 4 Press the Mode switch twice to proceed to define a new setting or once to abort and return to technician mode 5 When setting Alarm 1 the display will show the maximum display value full scale When setting Alarm 2 the display will show the current value of Alarm 1 on the display 6 Press and hold the Mode switch The displayed value will count down at approximately one count per second Release the switch when the displayed value is equal to the desired alarm value 7 Upon
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