G460 Field Operation Manual
Contents
1. 800 1200 hPa 2 5 of range EVE 5 max 0 2Vol or referred to 50 r F Humidity 0 90 r h 2 5 of range 20 50 C max 0 5Vol or referred to 20 C Temperature 2 5 of display Expected lifetime 3 years in air MK344 5 6 Electrochemical sensor for carbon monoxide CO Response time t50 lt 15 sec t90 lt 45 sec max 3ppm or 7 of referred to 1000 hPa Pressure 800 1200 hPa display O 0 Humidity 15 90 r h max 3ppm or 7 of referred to 50 r F display 0 o Temperature 10 40 C max 3ppm or 7 of referred to 20 C display 0 o Temperature 20 50 C max 3ppm or 15 of referred to 20 C display Cross C2H4 lt 100 C2H2 lt 90 CI2 lt 40 H2 lt 30 sensitivities NO lt 30 NO2 lt 30 H2S 0 SO2 0 NH3 0 C2H60 0 1 Expected lifetime 3 years 1 Displayed value with reference to the supplied gas concentration in the range of maximum allowable concentration MAC MK429 5 6 Electrochemical sensor for hydrogen sulfide H2S Response time t50 lt 15 sec t90 lt 45 sec Pressure 800 1200 hPa max 2ppm or 10 of referred to 1000 hPa display Humidity 15 90 r h max 2ppm or 10 of referred to 50 r h display Temperature 10 40 C max 2ppm or 10 of referred to 20 C display Temperature 20 50 C max 2ppm2. Enter the service menu by pressing and holding down the Reset button The instrument will display the Main Menu choices CONAN 11 12 13 14 13 16 Scroll down to the Service choice then press Select Enter 1100 as the Security Code when prompted The display will show the Service Menu screen Highlight the Sensors choice then press Select Use the down arrow key to choose the desired sensor then press Select The instrument will display the choices available for that particular type of sensor Highlight the Calibrate choice then press Select Turn the regulator on to begin flowing calibration gas to the sensor THEN press Start The display will show the sensor readings the concentration of CalGas being used to adjust the sensor an hourglass icon while the sensor is adjusted and OK when the adjustment is successfully completed NOTE Make sure that the concentration of gas in the cylinder matches the CalGas concentration shown on the instrument display Repeat this process for each additional sensor as necessary or press Exit to return to normal operation It will be necessary to push Exit several times to get back to the main reading screen You will be prompted to SAVE NEW ADJUSTMENT You MUST press the Yes button for the new calibration date and values to be updated to the instrument s memory M
3. attached and display the AutoCal menu screen 5 Push the Air button to initiate the Fresh Air adjustment 6 The instrument will automatically count down then begin the adjustment process 7 The display will list the sensors installed and show a checkmark by each sensor as the adjustment is completed 8 After completing the Fresh Air adjustment the instrument will return to normal operation 9 Make sure to remove the calibration adapter before using the instrument to detect gas The second step in a full calibration is the AutoCal Gas adjustment In this step the sensitivity of the sensors is automatically adjusted while the sensors are exposed to known concentration calibration gas Asingle cylinder of all in one Quad Mix calibration gas may be used to automatically calibrate CO H2S and LEL sensors all at the same time Other types of sensors must be calibrated one sensor at a time using the calibration gas that is appropriate for that sensor To initiate AutoCal Gas calibration using all in one Quad Mix calibration gas 1 Make sure the instrument has been properly Fresh Air adjusted before proceeding to the Gas calibration Attach the calibration adapter to the instrument If the adapter is already attached momentarily remove and replace the adapter to display the AutoCal menu screen Turn the regulator on to begin flowing calibration gas to the sensors and press Gas You will be prompted to
4. audible and visual alarms An instantaneous alarm is activated immediately Oxygen if the gas concentration Combustibles exceeds or falls below Toxic gases a pre set threshold The alarm values are adjustable Instantaneous Value AL The short term exposure limit STEL is the average concentration over a short period of Short Term time e g 15 minutes Value STEL One Gases The STEL alarm is not latching it resets automatically as soon as the concentration falls below the threshold The time weighted average TWA refers to an 8 hour shift and Long Term Toxic gases 1 calculates the average Value TWA concentration The TWA alarm cannot be reset It is only de activated if the detector is switched off Over Range All 1 The screen will display Under Range All wr will display Note To avoid possible personal injury do not turn off the detector during a work shift TWA STEL and Max readings are reset when the G460 is turned off If the detection range of the LEL sensor is exceeded the display will read 4 44 indicating it is over range instead of a value for gas concentrations above 110 LEL To protect the sensor from damage the device turns off the sensor However the audible and visual alarms and the 444 message remain active The alarms must be reset by pushing the FES key The display will read Fresh air If you have made sure that there is no combustible gas in the vicinity
5. of the CH sensor press yes to resume detection Service Service consists of the maintenance inspection and repair of the gas monitoring device A function test should be performed before each day s use e Status of the zeropoint e Charging status of the battery e Pump and diffusion inlet e Display with zero gas and standard test gas and adjustment if necessary e Alarm signal release e g with alarm test gas e Constantly amplified signal with standard test gas e Response time Any repair of the G460 must be done according to the manufacturer s instructions and with genuine parts Troubleshooting Symptom Solution gt Check charge battery No gas response Check replace sensor see complete user manual Alarms in clean fresh air Perform autozero Specifications Dimensions 2 95x4 33x2 17 in 75x110x55 mm Weight 10 oz 280 g with O LEL CO H S sensors 14 oz 380 g with above plus IR CO or PID Climate conditions Temperature 4 to 131 F 20 to 55 C Humidity 5 to 95 r h non condensing Pressure 700 to 1300 hPa Detection Range Please refer to complete operating manual Sensor Types and Detection Ranges Sensor type Please refer to complete operating manual Sensor Types and Detection Ranges Alarm Conditions Alarm 1 Alarm 2 Alarm 3 TWA STEL battery confidence blip Vibrating alarm standard Audible alarm 103 dB at 30 cm Display Illuminated LCD full graphic dis
6. the PCB holes When inserting new batteries check for the correct polarity see plastic holder Use only size AA batteries Duracell MN1500 LR6 Secure the supply module by replacing the two screws NOTE Failure to use Duracell AA batteries will void the warranty Utilisez uniquement des piles AA Duracell MN 1500 LR6 Maintenance and Inspection Maintenance includes service calibration and adjustment as well as repair if it is necessary Gas monitoring devices can react differently depending on environmental conditions It is important independent from maintenance duties to test the device before putting it into operation each day Bump testing before each use is highly recommended The casing can be cleaned with a damp cloth Never use solvents or detergents Calibration Procedure Calibration is a two step procedure The first step is the Fresh Air AutoCal adjustment In this step the readings of the sensors are automatically adjusted to equal the values expected in fresh air 20 9 O2 0 LEL combustible gas and 0 PPM parts per million for toxic sensors such as CO and H2S To perform a Fresh Air AutoCal adjustment 1 Make sure the instrument is located in fresh air 20 9 oxygen and no measurable flammable or toxic contaminants 2 Turn the instrument on and allow the readings to stabilize fully 3 Attach the calibration adapter to the instrument 4 The instrument will automatically recognize that the adapter is
7. G460 Multi gas Detector Field Operation Manual 1194 Oak Valley Dr Ste 20 Ann Arbor MI 48108 USA 800 959 0329 734 769 0573 www goodforgas com Warranty GfG Instrumentation warrants our products to be free from defects in material and workmanship when used for their intended purpose and agrees to remedy such defect or to furnish a new part at the option of GfG Instrumentation in exchange for any part of any product we manufacture that under normal use is found to be defective provided that the product is returned by the purchaser to GfG s factory intact for our examination with all transportation costs prepaid and provided that such examinations reveals in our judgment that it is defective This warranty does not extend to any products that have been subjected to misuse neglect accident or unauthorized modifications nor does it extend to products used contrary to the instructions furnished by us or to products that have been repaired or altered outside of our factory or by a non authorized service center No agent or reseller of GfG Instrumentation may alter the above statement This warranty is expressly in lieu of any and all other warranties and representations express or implied including but not limited to the warranty of fitness for a particular purpose GfG will not be liable for loss or damage of any kind connected to the use of its products or failure of its products to function or operate proper
8. K224 5 MK231 5 Infrared sensor for carbon dioxide CO2 Response time t50 lt 20 sec t90 lt 50 sec t10 lt 50 sec CO2 of display Pressure 70 130 hPa lt 1 6 of display per 1 referred to 100 hPa pressure change Humidity 0 95 r h max 0 01VolYo or 2 of referred to 50 r h display 20 C Temperature 20 55 C max 0 02Vol or 10 referred to 20 C Cross sensitivities max 0 01Vol or 2 of display under laboratory conditions Expected lifetime 6 years MK227 5 MK231 5 Infrared sensor for combustible gas Response time t50 lt 20 sec t90 lt 45 sec CH4 Methane t50 lt 25 sec t90 lt 66 sec C3H8 Propane t50 lt 30 sec t90 lt 99 sec C6H14 n Hexane t50 lt 55 sec t90 lt 371 sec C9H20 n Nonane Pressure 70 130 hPa lt 1 5 of CH4 display referred to 100 hPa per 1 pressure change lt 1 2 of C3H8 display referred to 100 hPa per 1 pressure change Humidity 0 95 r h max 2 0 Vol or 15 referred to 0 r h of display 40 C Temperature 20 50 C max 2 0 Vol or 10 referred to 20 C of C3H8 display Expected lifetime 6 years Accessories and Replacement Parts Part Number Batteries alkaline AA 4002 001 Battery hardware kit includes 6 screws and hex key 4003 450 Battery pack alkaline without batteries with vibrato
9. L talonner le capteur en utilisant le gaz appropri AWARNING High off scale readings may indicate an explosive concentration AAVERTISSEMENT Haute lectures hors chelle peut indiquer une concentration explosive AWARNING Only the combustible gas detection portion of this instrument has been assessed for performance by CSA International AAVERTISSEMENT Seule la partie de d tection de gaz combustible de cet instrument a t valu e pour la performance par CSA International AWARNING Protect the combustible sensor from exposure to lead compounds silicones and chlorinated hydrocarbons Although certain organic vapors such as leaded gasoline and halogenated hydrocarbons may temporarily inhibit sensor performance in most cases the sensor will recover after calibration AAVERTISSEMENT Prot gez le capteur de gaz combustible a partir de l exposition au plomb compos s silicones et des hydrocarbures chlor s Bien que certaines vapeurs organiques comme l essence au plomb et les hydrocarbures halog n s peuvent inhiber temporairement les performances du capteur dans la plupart des cas le capteur va r cup rer apr s calibration AWARNING For use only in hazardous locations where oxygen concentrations do not exceed 20 9 volume v v AAVERTISSEMENT A utiliser uniquement dans des endroits dangereux ou les concentrations d oxyg ne ne d passe pas 20 9 en volume v v AWARNING Any rapidly increasing reading followed by a declining or
10. WARNING Do not attempt to disassemble adjust or service the detector unless instructions for that procedure are contained in the manual and or that part is listed as a replacement part AAVERTISSEMENT N essayez pas de d monter modifier ou r parer le d tecteur a moins que des instructions pour que la proc dure se trouvent dans le manuel et ou la partie est r pertori comme une pi ce de rechange AWARNING Electromagnetic interference EMI signals may cause incorrect operation of this detector AAVERTISSEMENT interf rence des signaux lectromagn tiques EMI peut entrainer un mauvais fonctionnement de ce d tecteur AWARNING The G460 with IR EX 005 Sensor complies with the performance requirements of CSA C22 2 No 152 over the temperature range of 0 to 55 C Outside this range it exceeds the standard s minimum tolerance requirements of 3 of full scale At 10 C it is 4 and at 20 C it is 5 AAVERTISSEMENT Le G460 avec IR EX capteur 005 est conforme avec les exigences de performance de la norme CSA C22 2 No 152 au cours de la plage de temp rature de 0 a 55 C En dehors de cette gamme il d passe les exigences de tol rance aux minimales les normes de 3 la pleine chelle A 10 C il est de 4 et 20 C il est de 5 Sensor Specifications MK376 5 Electrochemical sensor for oxygen O2 Response time t50 lt 10 sec t90 lt 20 sec max 0 2Vol or referred to 1000 hPa Pressure
11. ake sure to remove the calibration adapter before using the instrument to detect gas NOTE It may take a few minutes for the sensors to re stabilize at their normal fresh air values Wait for the sensors to stabilize completely before using the instrument to detect gas If the sensors fail to stabilize it may be necessary to make a Fresh Air AutoCal adjustment as explained previously Sensors may initially fail the Fresh Air or Gas Calibration adjustment It is usually worthwhile to repeat the failed procedure at least once 1 Make sure that the sensors especially the combustible sensor have had a chance to warm up completely before beginning the Fresh Air or Cal Gas adjustment Five minutes is usually sufficient Before making a Fresh Air adjustment make sure that the calibration adapter and tubing do not contain trapped calibration gas Make sure the air used for the Fresh Air adjustment does not contain measurable contaminants such as solvent vapors cigarette smoke or engine exhaust Make sure that the calibration gas cylinder has not run out of gas Make sure the calibration gas cylinder tubing and adapter are properly connected to the instrument If the sensor still fails calibration contact GfG Instrumentation for additional advice Any sensor that fails to calibrate properly must be replaced before using the instrument Alarms If the measured gas concentration exceeds a pre set threshold the monitor will give
12. erratic reading may indicate a gas concentration beyond the upper scale limit which may be hazardous AAVERTISSEMENT Toute lecture augmente rapidement suivie par une lecture diminution ou irr guli re peut indiquer une concentration de gaz au dela de la limite sup rieure de l chelle ce qui peut tre dangereux AWARNING Extended exposure of the G460 to certain concentrations of combustible gases and air may stress detector elements which can seriously affect the device s performance If an alarm occurs due to a high concentration of combustible gases recalibration should be performed or if needed the sensor replaced AAVERTISSEMENT Une exposition prolong e de la G460 a certaines concentrations de gaz combustibles et d air peut souligner l ments d tecteurs qui peuvent s rieusement affecter les performances de l appareil Si une alarme se produit en raison d une forte concentration en gaz combustibles l talonnage doit tre effectu ou en cas de besoin le capteur remplac AWARNING Do not test the combustible sensor s response with a butane cigarette lighter doing so can damage the sensor AAVERTISSEMENT Ne pas tester la r ponse des capteurs combustible avec un briquet au butane cela peut endommager le capteur AWARNING Do not expose the detector to electrical shock and or severe continuous mechanical shock AAVERTISSEMENT Ne pas exposer le d tecteur de choc lectrique et ou s v re choc m canique continue A
13. eur de gaz combustible peut tre expos a un poison connu silicium le soufre les compos s halog n s etc GfG recommande de v rifier contre une concentration connue de gaz d talonnage avant utilisation item Description e Push butions SSS 8 Contacts for accessories o Banery pack screws Display Item Description Clock Flashlight indicator Battery charge level indicator Peak indicator 5 Alarm Status backlight Green No alarms Orange Alarm 1 Red Alarm 2 or 3 6 Gases n Push Hold to turn on optional flashlight Reset latching alarm Hold to enter service mode View one gas ata time or STEL TWA Press to turn on monitor when off Hold to turn off monitor approximately 5 seconds Rotate the display 180 Enter calibration mode Yo Vol measurement if equipped Battery Installation Batteries must not be replaced in hazardous locations Replace only in non hazardous locations Piles ne doivent pas tre remplac s dans des endroits dangereux Remplacez uniquement dans des endroits non dangereux Turn the detector off before you replace the batteries To replace the batteries or battery pack unscrew the two screws on the front of the detector and pull the whole pack backwards or insert the allen wrench through one of the screw holes to push the pack backwards When the alkaline batteries have to be replaced use the allen wrench to push the two battery cells out through
14. les composants car cela pourrait compromettre la s curit intrins que du G460 AWARNING For safety reasons this equipment must be operated and serviced by qualified personnel only Read and understand the user manual completely before operating or servicing this device AAVERTISSEMENT Pour des raisons de s curit cet quipement doit tre utilis et entretenu par du personnel qualifi Lire et comprendre le manuel d utilisation avant de faire fonctionner ou de r parer cet appareil AWARNING Do not use the detector if it is damaged Before you use the detector inspect the case for cracks or missing parts AAVERTISSEMENT Ne pas utiliser le d tecteur s il est endommag Avant d utiliser le d tecteur inspectez le cas de fissures ou de pi ces manquantes AWARNING If the detector is damaged or something is missing contact GfG Instrumentation Inc immediately AAVERTISSEMENT Si le d tecteur est endommag ou qu il manque quelque chose contactez GfG Instrumentation Inc imm diatement AWARNING Calibrate the detector before first time use and then on a regular schedule depending on use and sensor exposure to poisons and contaminants AAVERTISSEMENT talonner le d tecteur avant la premi re utilisation puis a intervalles r guliers en fonction de l utilisation et de l exposition du capteur aux poisons et des contaminants AWARNING GfG recommends that you bump test the sensors before each use to confirm their ability to resp
15. ly The G460 has a limited lifetime warranty to the original purchaser as long as the instrument is in service Accessories battery packs and chargers sampling pumps and other components which by their design are consumed or depleted during normal operation or which may require periodic replacement are warranted for one year from the date of purchase O LEL CO H S COSH and CO sensors are covered for 3 years from date of purchase PID and all other sensors are warranted from 6 months to 2 years Introduction The purpose of this manual is to provide day to day basic information for the G460 Please refer to the accompanying CD ROM to access the complete user s manual The G460 is a handheld detector for personal protection from gas hazards The instrument measures continuously in diffusion mode and gives visual and audible alarms if a gas induced danger arises The G460 is a safety device and it is up to the user to ensure proper action is taken in the event of an alarm The following signal words as defined by ANSI Z535 4 1998 are used in this guide indicates an imminently hazardous situation which if not avoided will result in death or serious injury AWARNING indicates a potentially hazardous situation which if not avoided could result in death or serious injury ACAUTION indicates a potentially hazardous situation which if not avoided may result in moderate or minor injury Safety Information The G460 mus
16. ond to gas To do this expose the detector to a gas concentration that exceeds the alarm set points Manually verify that the audible and visual alarms are activated Calibrate if the readings are not within the specified limits AAVERTISSEMENT GfG vous recommande de test cogner les capteurs avant chaque utilisation afin de confirmer leur capacit a r pondre a gaz Pour ce faire exposer le d tecteur a une concentration de gaz qui d passe les points de consigne d alarme V rifier manuellement que les alarmes sonores et visuelles sont activ es Calibrer si les lectures ne sont pas dans les limites sp cifi es AWARNING It is recommended that the combustible sensor be checked with a known concentration of calibration gas after any known exposure to catalyst contaminants poisons sulfur compounds silicon vapors halogenated compounds etc AAVERTISSEMENT est recommand que le capteur de gaz inflammables tre v rifi avec une concentration connue de gaz d talonnage apr s une exposition connue catalyseur contaminants poisons compos s soufr s des vapeurs de silicium compos s halog n s etc AWARNING The combustible sensor is factory calibrated to 50 LEL methane If monitoring a different combustible gas in the LEL range calibrate the sensor using the appropriate gas AAVERTISSEMENT Le capteur de gaz combustible est calibr en usine a 50 LIE m thane Si le suivi d un autre gaz combustible dans la gamme de LE
17. or 15 of referred to 20 C display Cross SO2 20 NO2 lt 20 CO lt 1 NO lt 0 2 sensitivities H2 lt 0 1 1 Expected lifetime 3 years MK211 6 Catalytic combustion sensor for combustible gases and vapors Response time t90 lt 30 sec 10 of display Pressure 950 1100 hPa max 5 of range or referred to 1000 hPa 15 of display Humidity 5 90 r h max 5 of range or referred to 55 r h 15 of display Temperature 20 50 C max 3 of range or referred to 20 C Cross sensitivities 2 00Vol Yo H2 approx 140 0 70Vol C4H10 approx 72 at 50 LEL 2 20Vol Yo CH4 100 0 70Vol CSH12 approx 71 Yo 0 85 Vol Yo C3H8 approx 85 0 50Vol C6H14 approx 55 The above information refers to the detection range for methane It may vary from sensor to sensor and depends on the gas concentration and on the age of the sensor Expected lifetime 3 years MK222 2 3 Photo ionisation sensor for toxic combustible vapors Isobutylene i C4H8 Response time t90 lt 30 sec lonisation potential 10 6 eV Cross sensitivities Kerosene approx 250 C8H8 250 C7H8 190 C6H6 190 Diesel approx 110 Benzine approx 90 C3H60 83 C8H18 45 C7H16 40 H2S 30 C6H14 22 NO 14 NH3 11 C5H12 10 C4H10 C3H8 CH4 H2 0 Expected lifetime 3 years M
18. play Visual alarm Bright 360 wraparound LEDs plus heterochromatic green orange red backlight display Backlight Automatic when a button is pressed or any alarm condition is activated Self test Initiated upon start up Calibration Manual or automatic User options Location ID User ID Confidence blip audible alarm levels 103 dB 95 dB or 0 dB display contrast time next inspection date language selection adjustable alarm levels disable vibrating alarm latching alarm 2 sensor deactivation combustible sensor 0 100 LEL or 0 5 vol set span values autosave and datalogging mode and interval Battery operating time Up to 25 hours with LEL and toxic sensors up to 18 hours with IR CO2 or PID sensors Approved batteries GfG NiMH rechargeable battery pack or Duracell MN1500 LR6 Battery charger GfG cradle charger Charge up to 6 hours Warranty Limited lifetime on instrument and electronics 3 yrs from date of purchase for O2 LEL CO H2S COSH and CO2 sensors PID and all other sensors are between 6 months to 2 years Approvals cCSAus Approved Class I Division 1 Group A B C and D Class I Zone 0 Ex ia IIC T3 Standards ATEX II 2G EEx ia d IIC T3 T4 CSA C22 2 No 152 M1984 UL 913 ANSI ISA 12 13 01 2000 EMI RFI resistance EMC directive 89 336 EEC Caution AWARNING Never substitute any components as this may compromise the G460s intrinsic safety A AVERTISSEMENT Ne jamais remplacer
19. r 1450 202 Battery pack rechargeable NiMH with vibrator 1450 211 Battery pack rechargeable NiMH with vibrator and lights 1450 212 Cable data downloading USB interface for PC 1650231 Calibration adapter with tubing 7771 450 Calibration connector 1450225 Charger plug in 110 VAC wall pack for use with drop in charger 4001 650 Charger vehicle 4001 650V GfG Instrumentation Inc 1194 Oak Valley Dr Suite 20 Ann Arbor MI 48108 USA US Canada 800 959 0329 US Canada Fax 734 769 1888 International 1 734 769 0573 International Fax 1 734 769 1888 Website www goodforgas com HH GfG Instrumentation Worldwide Manufacturer of Gas Detection Solutions 7004 460 Rev 4 10 30 13
20. t only be operated as specified in this manual otherwise the instrument s protection may be diminished Please refer to ISA RP12 13 Part 11 1987 for guidance in use of this instrument Warnings AWARNING Never substitute any component as this may compromise the G460s intrinsic safety AVERTISSEMENT Ne jamais remplacer les composants car cela pourrait compromettre la s curit intrins que du G460 A WARNING For safety reasons this equipment must be operated and serviced by qualified personnel only Read and understand the instruction manual completely before operating or servicing the G460 A AVERTISSEMENT Pour des raisons de s curit cet quipement doit tre utilis et entretenu par du personnel qualifi Lire et comprendre le manuel d utilisation avant de faire fonctionner ou de r parer cet appareil AWARNING Instrument should be calibrated before first time use and then on a regular basis Length of interval will depend on frequency of use and contaminants and or poisons being exposed to the sensors A AVERTISSEMENT talonner le d tecteur avant la premi re utilisation puis intervalles r guliers en fonction de l utilisation et de l exposition du capteur aux poisons et des contaminants AWARNING If the combustible sensor may be exposed to a known poison silicon sulfur halogenated compounds etc GfG recommends checking it against a known concentration of calibration gas before use AVERTISSEMENT Si le capt
21. verify that gas has been applied Press Yes to continue Allow the instrument to count down The display will show an hourglass icon by each sensor while it is being adjusted then a check mark when the adjustment is complete Continue the calibration procedure for any remaining sensors using the Single Sensor calibration procedure below Make sure to remove the calibration adapter before using the instrument to detect gas NOTE Single Sensor calibration is a Security Protected mode of operation The choices available in the Single Sensor calibration mode permit users to change alarm levels as well as to change the range and type of gas used to calibrate the sensor Advanced functions available in the Service Menu should only be accessed and used by qualified individuals Please call GfG for the correct calibration gas and concentration to use for the sensors installed in your instrument To initiate Single Sensor AutoCal Gas calibration 1 2 3 4 Be sure to calibrate the standard sensors as indicated previously Make sure that the calibration adapter is still attached to the instrument and that the instrument is in the normal operation mode showing readings for each installed sensor NOTE If the calibration adapter is not already attached when you attach the adapter the instrument will display the AutoCal menu screen Press the Exit button to display the normal operation screen and continue as below
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