Breathing Air CO Monitor Manual
Contents
1. CO Clear User Manual CO Clear User Manual List of Contents 1 Sale LY MIO EMA eier 3 2 Package contents CHECKING T crnini a 5 POUL IS OCI CM aces ea D es qe 6 4 Sensor characteristics and helium effect 7 5 Installa loh OF the Producer aa done ann dance eee 8 MEE OG c018 7 050 CERTE 9 Ouen 12 8 Compressor connection nennen nennen sss nnna nn nnns nnns a anis nnns nns 12 9 AGING AICS T 12 DE CANO ie o i a ane tea tee ne an ea A P de ct de 12 IE FA CORGINIONS een en ee add ses ses die a dans de msn eier 12 Be 0 1 6 01 00 0 CR 12 13 MOIS 010 cU RP peommabannnsaciaaennensian 12 14 Declaration of conformity sricenisicnimscssccoascatscewsccancwsacersaenreaedaunncaiensavetesannedeurntscssueanieonnsctecoues 12 Document Ref ACO 810 20 November 2012 Page 1 NALO CO Clear User Manual Document Ref ACO 810 20 November 2012 NA LO Page 2 CO Clear User Manual 1 Safety information The Analox CO Clear is designed to be compliant with the following standards EN61010 1 2001 IEC61010 1 2001 CAN CSA C22 2 No 61010 1 Second Edition 2004 ANSI UL 61010 1 Second Edition 2005 It is designed to be safe at least under the following conditions 1 Indoor use 2 Altitude up to 2000m 3 Temperature 5 to 40 C 4 Maximum relative humidity 80 for temperatures up to 31 decreasing linearly to 50 relative humidity at 40 C 2 Mains voltage2. The Alarm Repeater has four status indicators and a Mode button which mimic the button and indicators on the main Analox CO Clear enclosure An 8 metre 8 core cable is pre wired to the Analox CO Clear on units to be fitted with an alarm repeater This ensures that for a basic installation there is no need to dismantle the Analox CO Clear 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 Analox CO Clear 2 Insert the connector on the end of the cable into the socket on the base of the Alarm Repeater 3 Restore power to the Analox CO Clear 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 Alarm relay output models You may have ordered your Analox CO Clear 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 40 second warm up period See Figure 1 for details of how the relay should be connected Relay wiring The cable gland is for cables of outside diameter b
3. cylinder Correct flow rate Zero calibration Note When setting the gas flow rate on the control valve so long as the flow indication ball is raised off the bottom of the gas flow indicator this is sufficient flow to calibrate the instrument accurately 1 Fit the control valve to the zero gas 2 Push the calibration valve pipe fully into the elbow push fit connector of the sensor housing of the unit 3 Fully open the control valve by turning the control knob anti clockwise 4 Allow the gas to flow for 2 minutes 2 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 6 Select Zero Calibration by pressing the mode switch 5 times The Red Alarm 1 LED will light up to show you are now in this mode 7 Press the mode switch 2 times to start the Zero Calibration the Red Alarm 1 LED will turn off and the Green LED will continue to flash 8 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 9 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 Carbon Monoxide value 10 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 11 Fully close the c
4. 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 ACO 810 20 November 2012 NA LO Page 4 CO Clear User Manual 2 Package contents checklist On receipt of the Analox CO Clear please check you have the following Analox CO Clear main unit and Alarm Repeater User Manual Test Certificate Rawl Plugs and Screws for Wall Mounting Drilling Template Analox CO Clear Window Sticker Analox CO Clear wall notice Battery back up Relay junction box Additional 6mm Push fit connector Additional 14 inch Push fit connector 6mm tubing 4 inch tubing Document Ref ACO 810 20 November 2012 Page 5 NALO CO Clear User Manual 3 About the product Two variants of the Analox CO Clear are available The Analox CO Clear is designed to detect the presence of Carbon Monoxide in air or Nitrox gas compressors The Analox CO Clear He is designed to detect the presence of Carbon Monoxide in Heliox HeO2 gas compressors This variant can be identified by the warning sticker shown below cR C SHOCK HAZARD i DO NOT OPEN WARNING MUST BE CALIBRATED SING HELIUM ICED GAS BALAI JAS Different versions of the instrument allow operation from 1 210 250V AC supply 2 110 120V AC supply 3 9 24V DC supply The Analox CO Clear is intended to
5. sensor housing into the bulkhead Document Ref ACO 810 20 November 2012 Page 13 CO Clear User Manual To ensure trouble free operation of the CO Clear a 2 stage pressure regulation should be used The recommended pressure regulator can be obtained from The West Group Ltd whose contact details are listed below The West Group Ltd 29 Aston Road Waterlooville Hampshire United Kingdom PO7 7XJ Tel 44 0 2392 266 031 Fax 44 0 2392 240 323 Web www westgroup co uk UK Version 2 Stage Regulator for the Analox CO Clear Inlet 200Bar 1 BSPP Outlet 2Bar 6mm Push In West Group Part Number TPN 0967 US Version 2 Stage Regulator for the Analox CO Clear Inlet 200Bar 4 NPT Output 2Bar Push In West Group Part Number TPN 0966 If different inlet or outlet pressures are required please contact Steve Elliott at The West Group Ltd for more technical information using the above telephone number Document Ref ACO 810 20 November 2012 NA LO Page 14 CO Clear User Manual 9 Maintenance Recommended calibration interval The Analox CO Clear should be calibrated on a regular basis to maintain measurement accuracy It is recommended that a calibration should be performed every six months Carbon Monoxide sensor replacement The Carbon Monoxide sensor is mounted in a special housing on the under side of the Analox CO Clear enclosure This housing allows the Carbon Monoxide
6. The Alarm 1 indicator will continue to flash Mode Button OK Indicator Alarm 1 Indicator LCD Display Alarm 2 Indicator Fault Indicator On standard units the alarms are self cancelling when the CO level drops below the alarm limits Momentarily pressing the Mode button on either the Analox CO Clear 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 Document Ref ACO 810 20 November 2012 NA LO Page 12 CO Clear User Manual 8 Compressor connection Connection of the Analox CO Clear to the compressor will require a pressure regulator The pressure regulator must fit the following specifications Maximum inlet pressure 200Bar Outlet pressure 0 3 BarG For systems where 1 4 pipe work is used the push fitting in the sensor housing must be swapped out Remove the sensor housing as described on page 15 and carefully remove the 6mm push fitting and replace with the provided 1 4 push fitting and tighten replace the
7. be used as a permanent installation It provides a digital readout of Carbon Monoxide and 2 audio and visual alarms to warn you of elevated levels of Carbon Monoxide The alarms are set with a small hysteresis 0 5ppm which means the CO concentration has to fall below the alarm set point before the alarm cancels The instrument uses 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 Optional items fitted to or supplied with the unit may include the following 1 One or two medium duty relays 2 Test Gas and control valve 3 Battery Back Up 4 4 20mA output Document Ref ACO 810 20 November 2012 Page 6 CO Clear User Manual 4 Sensor characteristics and helium effect The carbon monoxide cell is a capilliary type sensor These types of sensors are affected by the presence of Helium He and in such cases give higher than anticipated outputs For this reason the Analox CO Clear He has been developed for use in Heliox gas applications e g Saturation diving For a detailed explanation of what the helium effect is and how it affects the measurements of carbon monoxide please refer to document ACO MISCO1 00 Helium sensitivity effect available from Analox The basic effect of He in the sample gas is to increase the carbon monoxide sensitivity This means that as the amount of He increases the sensit
8. er system should be connected to this cable as follows and as per the following drawing 3 Blue wire 4 to 20mA negative 4 Red wire 4 to 20mA positive MAIN UNIT Customer System 4 to 20mA SUPPLY FACTORY FITTED WIRING 4 to 20mA Cable marked 4 20mA OUTPUT Current is generated by Analox instrument Max load 150 Q Document Ref ACO 810 20 November 2012 Page 11 NALO CO Clear User Manual 7 Operation Normal operation When the Analox CO Clear is turned on it will take approximately 40 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 CO reading Alarm indications If the Analox CO Clear detects a CO concentration which is greater than the first 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 CO continues to rise above the second alarm level then the Alarm 2 indicator will begin to flash and the buzzer will sound at its medium speed
9. etween 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 2Amps 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 NALO Document Ref ACO 810 20 November 2012 Page 9 CO Clear User Manual RELAY TERMINAL BOX TERMINATIONS me Re Se CL nn CUSTOMER FITTED WIRING POWER SUPPLY FACTORY FITTED WIRING Figure 1 Relay Connections Battery back up When this option is fitted the Analox CO Clear should 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 Once the Analox CO Clear installation has been completed a calibration should be performed in accordance with section 9 of this manual Document Ref ACO 810 20 November 2012 NA LO Page 10 CO Clear User Manual 4 to 20mA output models You may have ordered your Analox CO Clear with a 4 to 20mA output 2m cable is factory fitted to the instrument The 4 to 20mA output current is generated by the instrument The custom
10. 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 Test Gas cylinder containing 10ppm Carbon Monoxide 21 Oxygen in the appropriate balance gas for that particular instrument 2 Control valve Document Ref ACO 810 20 November 2012 NA LO Page 18 CO Clear User Manual Then follow the procedure below 1 Fitthe control valve to the test gas cylinder 2 Push the calibration valve pipe fully into the elbow push fit connector of the sensor housing of the unit 3 Fully open the control valve by turning the control knob anti clockwise After a short time the Alarm 1 alarm should operate After further period of time the Alarm 2 alarm should operate Fully close the control valve by turning the control knob clockwise Remove the calibration valve pipe from the elbow push fit connector of the sensor housing of the unit 4 5 6 7 Adjusting alarm set points The following procedure is very similar for setting either Alarm 1 or Alarm 2 1 Whilst the Analox CO Clear 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 sho
11. ivity of the CO cell increases by what we call the compensation factor see Table 1 For example if a CO Clear He measured 3ppm CO in a tank containing 99 He the actual CO content would be 2 1ppm 3 x 0 7 2 1ppm The look up table below Table 2 shows a simplified representation of the helium effect to quickly identify the compensation factor to be applied to your gas measurement NOTE The compensation factors in Table 1 are based on a CO Clear He calibrated with a mix containing 79 He balance as provide in the CO Clear He calibration kit see calibration section for details Helium Compensation in mix factor 79 to 83 83 to 89 0 9 891094 08 94 to 99 Table 1 The helium effect increases as the He content in the sample gas increases so it is important that the correct calibration gases are used For this reason the instrument MUST be calibrated using 21 O2 in He balance calibration gas see Calibration section for details This ensures that any measurement errors due to the helium effect are fail safe Document Ref ACO 810 20 November 2012 Page 7 NALO CO Clear User Manual 5 Installation of the product Wall mounting The Analox CO Clear should be mounted onto a wall or vertical flat surface 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 sc
12. of EN61000 6 3 2001 A11 2004 BS EN 61010 1 2001 IEC 61010 1 2ed AS61610 1 2003 Australia amp New Zealand ee ments of the EM The above product complies with the require C Directive 89 336 EEC as amended The above product complies with the requirements of the Low Voltage Directive 73 23 EEC as amended EL LLLLLILLLLLLLLLLLLLLLLLLLLLILLLLLLL The above product is approved for use in the USA and Canada CCSAUS Master Contract 239512 Certificate 1909026 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 Signed on behalf of Analox Sensor Technology Ltd Date 02 June 2008 EEUU ssNe Tick marking Signed Name Position Managing Director Document Ref ACO 810 20 November 2012 Page 23 NALO
13. on of the Carbon Monoxide alarms see Alarm Check section The sensor in the Analox CO Clear is an electrochemical device and contains a caustic Electrolyte which can have the following effects Skin Skin contact could result in a chemical burn Ingestion Can be harmful or fatal if swallowed Eye Contact can result in permanent loss of sight First Aid Procedures Skin Wash the effected area with lots of water and remove contaminated clothing If stinging persists get medical attention Ingestion Drink a lot of fresh water Do not induce vomiting Seek medical attention Eye Wash with a lot of water for at least 15 minutes and get medical help immediately Document Ref ACO 810 20 November 2012 NA LO Page 16 CO Clear User Manual 10 Calibration The Analox CO Clear should be calibrated on a regular basis to maintain measurement accuracy It is recommended that a calibration should be performed every six months In order to perform a calibration check you will need the following equipment Air and Nitrox Kit for use with Analox CO Clear 1 Zero Gas 20 9 O2 in N2 balance Part No SA7L2003 2 Span Gas 10ppm CO 20 996 O2 in N2 balance Part No SA7L20153 3 Control valve Heliox Kit for use with Analox CO Clear He 1 Zero Gas 20 9 O2 in He balance Part No SA7L2009 2 Span Gas 10ppm CO 20 9 O2 in He balance Part No SA7L20154 3 Control valve Connecting of the gas
14. ontrol valve by turning the control knob clockwise NALO Document Ref ACO 810 20 November 2012 Page 17 CO Clear User Manual 12 Remove the calibration valve pipe from the elbow push fit connector of the sensor housing of the unit Note If at any time you would like to abort Zero Calibration press the mode switch once after step 9 this will bring you back to technician mode without accepting the new Carbon Monoxide value Press the mode switch once again this will bring you back to normal operation the LED s and buzzer will illuminate sound 4 times Alternatively disconnect the power supply to the Analox CO Clear wait a moment and re connect power Span calibration Note When the span calibration gas is applied both Alarm 1 and Alarm 2 will be activated When setting the gas flow rate on the control valve so long as the flow indication ball is raised off the bottom of the gas flow indicator this is sufficient flow to calibrate the instrument accurately 1 Fit the control valve to the span gas 2 Push the calibration valve pipe fully into the eloow push fit connector of the sensor housing of the unit 3 Fully open the control valve by turning the control knob anti clockwise 4 Allow the gas to flow for 2 minutes 9 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 6 Select Span Calibration by pressing
15. rews provided to mount the unit It is not necessary to dismantle the Analox CO Clear 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 dil A The Alarm Repeater housing also has wall mounting lugs Wiring installation It is necessary to identify the model of Analox CO Clear prior to installation The Calibration Certificate accompanying each instrument will clearly identify the information required kkk ENSURE THAT THE ELECTRICAL SUPPLY TO THE INSTRUMENT IS SWITCHED OFF WHILST INSTALLING ANY WIRING kkk Document Ref ACO 810 20 November 2012 NA LO Page 8 CO Clear User Manual 6 Option available AC supply models A mains powered Analox CO Clear is 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 Analox CO Clear is fitted with an internal fuse which is rated at 500mA DC supply models A DC powered Analox CO Clear 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 Alarm repeaters
16. sensor to be easily replaced when necessary To ensure continuous operation it is recommended to replace the sensor at 18 month intervals The procedure for replacing the cell is as follows PLEASE NOTE Do not pull on hose connection to remove the sensor Use a flat blade screw driver as described below Switch off the instrument 2 Use a large flat blade screw driver to release the sensor housing This is done by inserting the blade into the recess under the flange of the housing and twisting the screwdriver 3 The top of the Carbon Monoxide sensor will now be visible Gently pull the sensor housing downwards to release it from the bulkhead It will be retained by an electrical connector E Cw arbon Monoxide sensor 4 Carefully pull the electrical connector from the rear of the C Document Ref ACO 810 20 November 2012 Page 15 NALO CO Clear User Manual 5 Fit the new Carbon Monoxide sensor to the connector note it will only connect in one orientation Note The new Carbon monoxide sensor is supplied in a housing ready to be fitted 6 Carefully feed the sensor wire and sensor housing through into the bulkhead and then firmly push the housing into the Bulkhead on the under side of the Analox CO Clear enclosure 7 Switch the instrument back on 8 Allow the sensor to settle for 1 hour 9 Perform a Zero and Span Calibration Check to calibrate the new sensor 10 Test the operati
17. supply fluctuations not to exceed 10 of the nominal voltage 6 Impulse withstand over voltage category Il of IEC 60364 4 443 7 Pollution degree 2 8 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 9 Mains power Less than 5VA 110V AC and 230V AC Versions Less than 5W 24V DC Version 10 Mains frequency 50 60Hz 11 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 12 Insulation Reinforced insulation class Il product according to IEC536 13 Not for use in corrosive or explosive atmospheres 14 Not approved for use in vehicles ships or aircraft Document Ref ACO 810 20 November 2012 Page 3 NALO CO Clear User Manual 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 The 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
18. the mode switch 4 times The Red Alarm 2 LED will light up to show you are now in this mode 7 Press the mode switch 2 times to start the Span Calibration the Red Alarm LED will turn off and the Green LED will continue to flash 8 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 9 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 Carbon Monoxide value 10 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 11 Fully close the control valve by turning the control knob clockwise 12 Remove the calibration valve pipe from the elbow push fit connector of the sensor housing of the unit Note If at any time you would like to abort Span Calibration press the mode switch once after step i this should bring you back to technician mode without accepting the new Carbon Monoxide value 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 Analox CO Clear wait a moment and re connect power Alarm check To verify that the indicators and the audible alarms are working press the Mode switch on the Analox CO Clear The
19. uid 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 Power Supply Options Option selected at time of manufacture order a 210 250V A C supply b 110 120V A C supply c 9 24V DC supply e This accuracy applies to an instrument calibrated using Nitrogen balance gas and the monitoring of Nitrogen balance gas only Calibration gas flow rate 0 5 1 0 Litres min approx Document Ref ACO 810 20 November 2012 Page 21 NALO CO Clear User Manual 13 Disposal 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 Document Ref ACO 810 20 November 2012 NA LO Page 22 CO Clear User Manual 14 Declaration of conformity ACO 902 0 CO Analox Sensor Technology Ltd BE VD Manufacturers address 15 Ellerbeck Court Stokesley Business Park Stokesley North Yorkshire TS9 5PT EEE CONMMSSMESEMM is It is declared that the following product EEE PE Analox CO Clear Product code NEE SONNEN EN50270 1999 Conforms to all applicable requirements
20. w 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 or Alarm 2 the display will show the maximum display value full scale 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 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 Analox CO Clear then restarts by performing the normal power on sequence 4 flashes Document Ref ACO 810 20 November 2012 Page 19 NALO CO Clear User Manual 11 Fault conditions During normal operation the instrument carries out a continuous self test procedure If operation is satisfactory the OK status indicator will be on blinking off momentarily every few seconds 1 If there are no indicator lamps lit on the Analox CO Clear check that po
21. wer is connected and that the fuses are OK 2 If the OK indicator is off and the alarm indications are believed to be incorrect carry out a calibration as described in section 5 If this fails to correct the problem contact your qualified service engineer A summary of the indicator lamps and buzzer operations is shown below OK LAMP ALARM1 LAMP ALARM2LAMP FAULT LAMP MEANING GREEN RED RED YELLOW OFF OFF OFF OFF Power Off ON BLIP OFF OFF OFF OFF Normal Operation OFF FLASHING AND OFF OFF CO Level is SLOW BUZZER gt 3 0ppm OFF FLASHING FLASHING AND OFF CO Level is MED BUZZER 5 0ppm OFF OFF OFF FLASHING AND Calibration Error SLOW BUZZER at Switch On ii OFF FLASHING OFF FLASHING AND CO Cell Fault FAST BUZZER Output too High OFF FLASHING FLASHING FLASHING AND System Fault FAST BUZZER 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 kkk Document Ref ACO 810 20 November 2012 NA LO Page 20 CO Clear User Manual 12 Specifications CO Range 0 0 to 10 0ppm Inlet Pressure Range 1 3 Bar Gauge 14 5 42 5 PSI Atmospheric Pressure 800mbar to 1200 mbar Range Warm Up Time Weight without cables Analox CO Clear 400g 0 8lbs 6 8x5 11x2 75inches Pe 4 digit Liq
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