User manual - Bacharach, Inc.
Contents
1. 13 1509 9000 Rev 1 iti Comfort Chek 400 Operation Manual IMPORTANT NOTE READ AND UNDERSTAND THIS MANUAL PRIOR TO USING THIS INSTRUMENT CAREFULLY READ THE WARRANTY POLICY SERVICE POLICY NOTICES DISCLAIMERS AND REVISIONS ON THE FOLLOWING PAGES THIS INSTRUMENT SHOULD BE INSPECTED AND CALIBRATED REGULARLY BY A QUALIFIED AND TRAINED TECHNICIAN THIS INSTRUMENT HAS NOT BEEN DESIGNED TO BE INTRINSICALLY SAFE IN HAZARDOUS OR EXPLOSION RATED ENVIRONMENTS FOR YOUR SAFETY DO NOT USE IT IN AREAS CLASSIFIED AS HAZARDOUS AREAS 6 EXPLOSION RATED ENVIRONMENTS INSTRUMENT SERIAL NUMBER PURCHASE DATE PURCHASED FROM WARRANTY POLICY BACHARACH INC WARRANTS THIS INSTRUMENT EXCLUDING SENSORS TO BE FREE FROM DEFECTS IN MATERIALS AND WORKMANSHIP FOR A PERIOD OF TWO YEARS FROM THE DATE OF PURCHASE BY THE ORIGINAL OWNER THE SENSORS HAVE A WARRANTY PERIOD OF ONE YEAR FROM THE DATE OF PURCHASE IF THE PRODUCT SHOULD BECOME DEFECTIVE WITHIN THIS WARRANTY PERIOD WE WILL REPAIR OR REPLACE IT AT OUR DISCRETION BATTERIES ARE NOT COVERED UNDER WARRANTY WARRANTY DOES NOT COVER DAMAGE FROM MISUSE THE WARRANTY STATUS MAY BE AFFECTED IF THE INSTRUMENT HAS NOT BEEN USED AND MAINTAINED PER THE INSTRUCTIONS IN THIS MANUAL OR HAS BEEN ABUSED DAMAGED OR MODIFIED IN ANY WAY THIS INSTRUMENT IS ONLY TO BE USED FOR PURPOSES STATED HEREIN THE MANUFACTURER IS NOT LIABLE FOR AUXILIARY INTERFACED EQUIPMENT OR CONSEQUENTIAL DAMAGE2. The Measurable Difference Comfort Chek Instruction 1509 9000 Air Quality Monitor 400 Operation Manual Rev 4 June 2013 Product Leadership e Training e Service e Reliability Comfort Chek 400 Operation Manual 1509 9000 Rev 4 Comfort Chek 400 Operation Manual TABLE OF CONTENTS IINDOHSDUNo00S uuu cua weye Wel dy k ce dale ede awaye Way ta tite ede IV POlCV nd IV SENICE PONG Visi seat enc aah te S ee ate NDLIC Na she vi PROVISIONS N DD ma N ce ta vi Ms MOWER 1 NVCIGOM gjere stan za eh d en a sid setae 1 1 2 Comfort Chek 400 Shipping G K S 3 5 esi et R e e 2 1 56 Key Feature S uu yn RA 2 1 4 General CO nrnna 2 2 SPECIFICATIONS ceini aa aaa atic aon owed Mek k 3 Su COMPONENTS seis ys ts ete q e nee ey nak des E au a 5 ak IPOWSr Supply AN N nG ea e 5 S WARA DDISPIAV are Dr a De cand ate 5 SiO ye TT Y rc rd 6 4 OPERATION a u u Q KEKE y veda Ga Sede k k 7 Bede BONOT OM OU ert N DD ND r e n PR T 4 2 Taking kk kk 7 O BACK LIQ nandor 7 AA Ale PIO gu a mapa a maana NE 8 4 5 MIN MAX TWA ING ST EL Ara
3. DUE TO ONGOING RESEARCH DEVELOPMENT AND PRODUCT TESTING THE MANUFACTURER RESERVES THE RIGHT TO CHANGE SPECIFICATIONS WITHOUT NOTICE THE INFORMATION CONTAINED HEREIN IS BASED ON DATA CONSIDERED ACCURATE HOWEVER NO WARRANTY IS EXPRESSED OR IMPLIED REGARDING THE ACCURACY OF THIS DATA ALL GOODS MUST BE SHIPPED TO THE MANUFACTURER BY PREPAID FREIGHT ALL RETURNED GOODS MUST BE PRE AUTHORIZED BY OBTAINING A RETURN MERCHANDISE AUTHORIZATION RMA NUMBER CONTACT THE MANUFACTURER FOR A NUMBER AND PROCEDURES REQUIRED FOR PRODUCT TRANSPORT 1509 9000 Rev 2 iv Comfort Chek 400 Operation Manual SERVICE POLICY BACHARACH INC MAINTAINS AN INSTRUMENT SERVICE FACILITY AT THE FACTORY SOME BACHARACH DISTRIBUTORS AGENTS MAY ALSO HAVE REPAIR FACILITIES HOWEVER BACHARACH ASSUMES NO LIABILITY FOR SERVICE PERFORMED BY ANYONE OTHER THAN BACHARACH PERSONNEL REPAIRS ARE WARRANTED FOR 90 DAYS AFTER DATE OF SHIPMENT SENSORS PUMPS FILTERS AND BATTERIES HAVE INDIVIDUAL WARRANTIES SHOULD YOUR INSTRUMENT REQUIRE NON WARRANTY REPAIR YOU MAY CONTACT THE DISTRIBUTOR FROM WHOM IT WAS PURCHASED OR YOU MAY CONTACT BACHARACH DIRECTLY IF BACHARACH IS TO DO THE REPAIR WORK SEND THE INSTRUMENT PREPAID TO BACHARACH INC AT THE FOLLOWING ADDRESS BACHARACH INC 621 HUNT VALLEY CIRCLE NEW KENSINGTON PA 15068 ATTENTION SERVICE DEPARTMENT ALWAYS INCLUDE YOUR RMA ADDRESS TELEPHONE NUMBER CONTACT NAME SHIPPING BILLING INFORMATION AND A DESCRI
4. numerical LCD display Alarms will sound at 1000 PPM the ASHRAE limit Audio The alarm level can be modified and the alarm sound can be turned off through the instrument menu FWarm up 30seons O SS Operating O to 50 C 32 to 122 F Storage 20 to 700 C 4 to 158 F User Interface Temperature Environ mental Relative Humidity Method Tons Dependence 1 6 reading per kPa deviation from normal pressure 100 kPa Range 10 0 C to 60 0 C 14 F to 140 F Temperature Resolution 0 1 C 0 1 F Accuracy 0 6 C 0 9 F Range 0 0 to 99 9 Resolution 0 1 Accuracy 3 10 to 90 range 5 other ranges Operating 0 to 95 RH non condensing Humidity 1509 9000 Rev 4 3 Comfort Chek 400 Operation Manual 1 25 32mm gt 2 4 n 1 0 61mm 25mm Figure 2 1 Comfort Chek 400 Dimensions 4 1509 9000 Rev 4 Comfort Chek 400 Operation Manual 3 COMPONENTS 3 1 Power Supply The instrument is powered by either 4 AA alkaline batteries or a supplied DC wall adapter 9V 1A output Install batteries into the battery compartment on the rear of the instrument and make sure they are in correct polarity and making good contact When the wall adapter is used it will cut off the power supply from the batteries The wall adapter cannot be used as a battery charger When battery voltage gets low Lob will appear on the LCD and
5. AIR DP WBT temps display DP WBT Selects unit or decreases value in set up JAV Activates MAX STEL TWA functions lt Saves and finishes settings 6 1509 9000 Rev 4 Comfort Chek 400 Operation Manual 4 OPERATION 4 1 Power On Off Press the SET button to switch instrument on At power up it emits a short beep and performs a 30 second countdown while the instrument warms up It then enters normal operating mode displaying real time CO temperature and RH readings To switch the instrument off press the SET button Figure 4 1 Warm up Countdown Figure 4 2 Normal Operating Mode NOTE For the purpose of saving battery life the unit will switch itself off after 20 minutes of operation For continuous operation switch the unit on using both SET and HOLD buttons together 4 2 Taking Measurements The instrument starts taking measurements upon power up and updates information on the LCD every second When the environment to be monitored changes example from high temperature to low temperature it takes 30 seconds to update the CO2 reading and 30 minutes to update the RH reading NOTE Do not hold the instrument close to your face because your exhalation will affect the CO temperature and RH readings Press DP WBT down arrow button to switch between the three different temperature units of measure The lower left portion of the LCD will cycle from air temperature to dew point temperature to wet bulb
6. dak eae Se ae saan ln aya Jee ves S SS eae 8 46 NUDE AAI raae oh n N he 9 4 T Auto OWEN Of uu u e ve med cans Game SSD ua u diane th ene 9 BOs SOUP MOG dix n nd WE t dass GA R KA 9 4 9 P1 0 CO Alarm Level ndame md i on 9 4 10 P3 0 Temperature Units sec besen tt dd KAK K k etal 9 AS Oo al DALI OI ss utu aS n d 10 4 12 RH Calibration Overview a epe KA KAK KK K KAK 11 A 19 09 0 ATIDRA LO 2 u y be ea de 11 4 14 75 Calibration KEKE 11 3 TROUBLESHOOTING uu u k Ka DS a B b ek E KRE Wae Ra HEBA da dat j see 12 Batts 6 1 a1519 POWSr OM DS N a n ia 12 5 2 Fixed Unchanging Readings kk kk KK K KK KK KK YA 12 9 02 HOW RESPONS Seq D N e derd e DS asss 12 5 4 Error Codes and Descriptions x sl u u m usss di bany Tote ome d bu av dali ew d gan 12 D en zi a le GO Or g 12 6 CO LEVELS AND GUIDELINES 13 6 1 Enforceable and or Regulatory Levels 13 6 2 Non Enforced Guidelines and Reference Levels 13 Is NOTES uu ke dd L uy
7. temperature Figure 4 3 Dew Point Temperature Figure 4 4 Wet Bulb Temperature 4 3 Back Light Hold down MODE for more than 1 second to activate or cancel the back light function 1509 9000 Rev 4 7 Comfort Chek 400 Operation Manual 4 4 Data Hold Press the HOLD button to freeze the current readings The HOLD icon is indicated at the top left corner of the LCD All current readings remain unchanged except TWA and STEL Press the HOLD button again to cancel this function Figure 4 5 HOLD Mode 4 5 MIN MAX TWA and STEL While in normal operating mode press MNX AV to see the minimum maximum and time weighted average readings Each press of this button displays another readings in sequence and finally returns to the normal operating mode In the MIN MAX modes the instrument indicates the minimum and maximum readings for CO on the upper half of the LCD air DP WB temperatures in the lower left corner of the LCD and RH in the lower right corner of the LCD Figure a In STEL and TWA modes the main part of the LCD indicates the time weighted average for readings for CO for the past 15 minutes STEL and past 8 hours TWA The lower portions of the LCD are the current AIR DP WB temperatures readings and current RH readings Figure b NOTE If the instrument is switched on for less than 15 minutes the STEL value will be the time weighted average of the readings taken since switch on The same calculations apply
8. to the TWA readings indicated prior to 8 hours of operation NOTE It takes at least 5 minutes of recorded readings to calculate the STEL and TWA The display indicates Figure c during the first 5 minutes of operation from power on NOTE While all the other readings are held unchanged the STEL and TWA are updated every 5 minutes ppm ur LI Figure 4 6 Statistics Screens 8 1509 9000 Rev 4 Comfort Chek 400 Operation Manual 4 6 Audible Alarm The instrument has an audible alarm to provide warnings to the user when CO concentrations exceed the limit See P1 0 in setup for setting alarm threshold It emits beeps about 80 dB when measured CO concentration exceeds the preset value and stops when any key except SET is pressed or readings fall below the preset alarm value It beeps again when the value once again exceeds the preset limit Restart the instrument if the beeping cannot be stopped 4 7 Auto Power Off The instruments automatically switches off after 20 minutes of inactivity to save on battery life To override this function power on the instrument by holding down the SET and HOLD buttons for 2 seconds until n appears on the LCD NOTE Auto sleep function is disabled during calibration mode 4 8 Setup Mode Hold down the SET button for more than 1 second while in normal operation mode to enter the set up mode To exit set up mode press the CAL Esc b
9. 75 salt solution The ambient condition is recommended to be at 25 C with stable humidity it s better to be close to the calibration value To abort the calibration switch the instrument off at any time CAUTION Do not calibrate the humidity without the default calibration salt solution as it will cause permanent damage to the RH sensor 4 13 33 Calibration Plug the sensor probe into a 33 salt solution bottle Hold down the CAL Esc button and DP WBT button while in normal operating mode to enter the 33 calibrating mode CAL and calibration value 32 7 if at 25 C are blinking on the LCD with current temperature displayed on the lower left side The instrument is now calibrating and will finish in approximately 60 minutes when CAL and humidity stop blinking Figure 4 12 33 Cal Mode Figure 4 13 Cal Mode Finished 4 14 75 Calibration After 33 calibration plug the sensor probe into a 75 salt solution bottle then press MNX AV to enter 75 calibration CAL and calibrating value 75 2 if at 25 C are blinking on the LCD with current temperature indicated at the lower left corner The instrument is now calibrating and will finish in approximately 60 minutes when CAL and humidity stop blinking and the instrument returns to normal operating mode NOTE To calibrate 33 only press CAL Esc and exit when 33 calibration is complete To calibrate 75 only press MODE arrow up or DP WBT arrow down within 5 minutes of i
10. PTION OF THE DEFECT AS YOU PERCEIVE IT YOU WILL BE CONTACTED WITH A COST ESTIMATE FOR EXPECTED REPAIRS PRIOR TO THE PERFORMANCE OF ANY SERVICE WORK FOR LIABILITY REASONS BACHARACH HAS A POLICY OF PERFORMING ALL NEEDED REPAIRS TO RESTORE THE INSTRUMENT TO FULL OPERATING CONDITION PRIOR TO SHIPPING EQUIPMENT TO BACHARACH CONTACT OUR OFFICE FOR AN RMA RETURNED MERCHANDISE AUTHORIZATION ALL RETURNED GOODS MUST BE ACCOMPANIED WITH AN RMA NUMBER PACK THE EQUIPMENT WELL IN ITS ORIGINAL PACKING IF POSSIBLE AS BACHARACH CANNOT BE HELD RESPONSIBLE FOR ANY DAMAGE INCURRED DURING SHIPPING TO OUR FACILITY NOTICES COPYRIGHTS THIS MANUAL IS SUBJECT TO COPYRIGHT PROTECTION ALL RIGHTS ARE RESERVED UNDER INTERNATIONAL AND DOMESTIC COPYRIGHT LAWS THIS MANUAL MAY NOT BE COPIED OR TRANSLATED IN WHOLE OR IN PART IN ANY MANNER OR FORMAT WITHOUT THE WRITTEN PERMISSION OF BACHARACH INC ALL SOFTWARE WHICH BACHARACH UTILIZES AND OR DISTRIBUTES HOLDS A PROPRIETARY INTEREST AND IS ALSO SUBJECT TO COPYRIGHT PROTECTION AND ALL RIGHTS ARE RESERVED NO PARTY MAY USE OR COPY SUCH SOFTWARE IN ANY MANNER OR FORMAT EXCEPT TO THE EXTENT THAT BACHARACH GRANTS THEM A LICENSE TO DO SO IF THIS SOFTWARE IS BEING LOADED ONTO MORE THAN ONE COMPUTER EXTRA SOFTWARE LICENSES MUST BE PURCHASED 1509 9000 Rev 2 Comfort Chek 400 Operation Manual DISCLAIMER UNDER NO CIRCUMSTANCES WILL BACHARACH INC BE LIABLE FOR ANY CLAIMS LOSSES OR DAMAGES RES
11. ULTING FROM OR ARISING OUT OF THE REPAIR OR MODIFICATION OF THIS EQUIPMENT BY A PARTY OTHER THAN BACHARACH SERVICE TECHNICIANS OR BY OPERATION OR USE OF THE EQUIPMENT OTHER THAN IN ACCORDANCE WITH THE PRINTED INSTRUCTIONS CONTAINED WITHIN THIS MANUAL OR IF THE EQUIPMENT HAS BEEN IMPROPERLY MAINTAINED OR SUBJECTED TO NEGLECT OR ACCIDENT ANY OF THE FORGOING WILL VOID THE WARRANTY REVISIONS BACHARACH INC MAKES NO WARRANTY OR REPRESENTATION EXPRESSED OR IMPLIED INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR PURPOSE WITH RESPECT TO THIS MANUAL ALL INFORMATION CONTAINED IN THIS MANUAL IS BELIEVED TO BE TRUE AND ACCURATE AT THE TIME OF PRINTING HOWEVER BACHARACH RESERVES THE RIGHT TO MAKE CHANGES AT ANY TIME WITHOUT NOTICE REVISED COPIES OF THIS MANUAL CAN BE OBTAINED BY CONTACTING BACHARACH INC OR DOWNLOADING IT FROM OUR WEB SITE WWW MYBACHARACH COM SHOULD YOU DETECT ANY ERRORS OR OMISSIONS IN THIS MANUAL PLEASE CONTACT THE COMPANY AT THE FOLLOWING ADDRESS BACHARACH INC 621 HUNT VALLEY CIRCLE NEW KENSINGTON PA 15068 7074 USA TOLL FREE 1 800 736 4666 FAX 724 334 5001 E MAIL help MyBacharach com WEBSITE www MyBacharach com IN NO EVENT WILL BACHARACH INC OR ITS OFFICERS OR EMPLOYEES BE LIABLE FOR ANY DIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY DEFECT IN ANY MANUAL EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES vi 1509 9000 Rev 2 Comfort Chek 400 Operation Man
12. cupational Safety and Health Administration MAK 5000 ppm or 10 000 ppm 1 hour German Institution Non Enforced Guidelines and Reference Levels Canadian 3500 ppm long term NIOSH 5000 ppm or 30 000 ppm 15 minutes The US National Institutes of Health ACGIH 5000 ppm or 30 000 ppm 15 minutes The American Conference of Governmental Industrial Hygienists NOTES TWA Time Weighted Average value represents the average carbon dioxide level exposure during 8 hours working day STEL Short Term Exposure Limit value shows the last 15 minutes CO2 ASHRAE Standard 62 1989 Sec 6 1 3 Comfort odor criteria are likely to be satisfied if the ventilation rate is set so that 1000 ppm of 602 is not exceeded 1509 9000 Rev 4 13 World Headquarters 621 Hunt Valley Circle New Kensington Pennsylvania 15068 Phone 724 334 5000 Toll Free 1 800 736 4666 Fax 724 334 5001 Website www MyBacharach com E mail help MyBacharach com
13. ent be calibrated annually by a trained technician or the factory using calibration gas NOTE Do not calibrate the instrument in air with unknown CO concentration otherwise it will be calibrated as 400 ppm by default and the CO readings displayed will be inaccurate It is suggested to calibrate the instrument in fresh outdoor air that is well ventilated and it is better in sunny weather Do not calibrate the instrument in places crowed with people or close to areas where CO concentrations may be high such as ventilation outputs near exhaust idling cars garages transportation depots traffic etc Set the instrument in the calibration site switch it on and hold down the CAL Esc and MODE arrow up buttons simultaneously to enter the CO calibration mode CAL and 400 ppm are blinking on the LCD while performing calibration Figure 4 11 CO Calibration Mode NOTE Ensure either the wall adapter or fresh batteries are used for the calibration procedure because the infrared CO sensor draws a fairly high current Low battery voltage may result in an interruption or failed calibration Wait about 10 minutes until the blinking stops and the calibration is completed automatically The instrument returns to normal operation mode To abort the calibration switch the instrument off at any time 10 1509 9000 Rev 4 Comfort Chek 400 Operation Manual 4 12 RH Calibration Overview The meter defaults to be calibrated at 33 RH and
14. nitializing 33 calibration 1509 9000 Rev 4 11 Comfort Chek 400 Operation Manual Figure 4 14 75 Cal Mode 5 TROUBLESHOOTING 5 1 Cannot Power On Press the SET button for more than 1 second and try again In using batteries ensure that the batteries are making good contact and that they are installed with the correct polarity Otherwise ensure that the wall adapter is connected and plugged in 5 2 Fixed Unchanging Readings Verify that the data hold function is not activated In data hold mode the HOLD icon is displayed at top left corner of LCD 5 3 Slow Response Ensure that the air flow vents on the rear of the instrument are not blocked 5 4 Error Codes and Descriptions E01 E02 E03 E04 E07 Battery voltage too low to measure CO2 Replace batteries or use wall adapter Es E34 5 5 Service Centers United States Canada Bacharach Inc Bacharach of Canada Inc 621 Hunt Valley Circle 20 Amber St Unit 7 New Kensington PA 15068 Markham Ontario L3R SP4 USA Canada Phone 724 334 5051 Phone 905 470 8985 Fax 724 334 5723 Fax 905 470 8963 Email help MyBacharach com Email bachcan idirect com 12 1509 9000 Rev 4 6 Comfort Chek 400 Operation Manual CO LEVELS AND GUIDELINES The following are excerpts from ANSI ASHRAE addendum standard 62 1 2004 Refer to section 1 4 for general CO guidelines 6 1 6 2 Enforceable and or Regulatory Levels OSHA 5000 ppm The Oc
15. se 1 3 Key Features Features of the Comfort Chek 400 include the following Displays CO temperature and RH simultaneously Stable NDIR sensor for CO detection Statistics for STEL and TWA Backlit LCD display for dark areas Audible alarm for CO readings Battery operates up to 10 hours or continuously with wall adapter power supply Easy user calibration for CO 1 4 General CO Guidelines General CO indoor air quality guidelines are summarized in the chart below Aside from the OSHA level of 5000 ppm for unsafe CO levels the other guidelines of normal 300 400 ppm and poorly ventilated 1000 1100 ppm are generally accepted standards for indoor air quality Your guidelines may vary based on local practices and personal preferences Refer to Section 7 for additional information PPM 5000 1100 1000 400 NORMAL 300 Figure 1 3 General CO Guidelines 2 1509 9000 Rev 4 Comfort Chek 400 Operation Manual 2 SPECIFICATIONS HxWxD Dimensions b 63 x 2 75 x 1 25 17 cm x 7 cm x 3 cm Weight 7 1 ounces E grams MENENY batteries 9 VDC from external AC adapter which is included in kit North American wall configuration only The end of the wall adapter that plugs into the instrument is 1 3 mm diameter center positive CAUTION DO NOT use rechargeable batteries in the Comfort Chek 400 and DO NOT try to use the wall adapter to charge them Display Three parameters backlit
16. the audible alarm sounds The CO infrared sensor cannot operate under low voltage so the instrument beeps to indicate failed CO2 measurement The user can press any button to stop the beeps and at that time the sensor readings will not be displayed To continue replace the alkaline batteries with fresh ones or connect the wall adapter NOTE If the AC adapter is plugged in while the instrument is powered on the Comfort CHEK 400 will lose power Figure 3 1 Sample Low Battery Screen 3 2 LCD Display CO ppm F IC E CO concentration in PPM Air temperature dew point L h DP AR WT or wet bulb temperature in gt o00 0 degrees C or F ooo Bi lt Relative humidity in Figure 3 2 LCD Components 1509 9000 Rev 4 5 Comfort Chek 400 Operation Manual TW Time Weighted Average 8 hours STEL Short Term Exposure Limit 15 minute weighted average HOLD Readings are frozen and remain unchanged MIN MAX MINimum MAXimum readings OT DT pp Dev Ponttemperatire TUU 3 3 Keypad Switches instrument on and off Q SET Enters set up mode Sets as non sleep mode along with HOLD CAL Exits set up page mode E Enters CO calibration along with MODE ak Enters RH calibration along with DPAVBT Freezes the current readings HOLD Cancels data hold function A xy Activates or cancels the backlight MODE Selects unit or increases value in set up wv Selects
17. ual 1 OVERVIEW 1 1 Welcome Thank you for purchasing the Comfort Chek 400 indoor environmental quality monitor The Comfort Chek 400 is an easy to use portable device for monitoring indoor air quality It utilizes an infrared CO2 sensor plus temperature and relative humidity RH sensors The Comfort Chek 400 is a rugged hand held battery powered IAQ instrument for measuring and displaying carbon dioxide CO2 Temperature and RH indoors It operates from internal alkaline batteries or wall adapter The Comfort Chek 400 is equipped with integral CO2 temperature and RH sensors to aid in verifying readings providing an indication of air quality NOTE Calibration and repair are available at our manufacturing facility and through some of our authorized and trained distributors If after reading the manual you have any questions please contact our customer service department for technical support Figure 1 1 Comfort Chek 400 Figure 1 2 Comfort Chek 400 Kit 1509 9000 Rev 2 1 Comfort Chek 400 Operation Manual 1 2 Comfort Chek 400 Shipping Checklist This checklist ensures that you have received everything required to run your Comfort Chek 400 If you do not receive any of the items listed below contact the factory immediately Comfort Chek 400 instrument 4 x AA alkaline batteries AC wall adapter with North American plug Operation manual Black plastic carrying storage ca
18. utton in P1 0 or P3 0 and it returns to normal operating mode 4 9 P1 0 CO Alarm Level When entering the set up mode P1 0 and AL are indicated on the LCD Press MNX AV button to go into P1 1 for setting the CO alarm threshold The current set value will be blinking on the LCD Press the MODE up arrow button or DP WBT down arrow button to change the set point in intervals of 100 ppm Press the MNX AV button to save changes or the CAL Esc button to exit without saving wes LILI Figure 4 7 Entering Setup Mode Figure 4 8 Current Set Value Blinking 4 10 P3 0 Temperature Units Press the MODE up arrow button or DP WBT down arrow button in P1 0 to access P3 0 for setting up the temperature scale Press the MNX AV button and it enters P3 1 mode with blinking C or F current settings on the lower left area of the LCD To switch between C and F press the MODE arrow up button and DP WBT arrow down button Then press the MNX AV button to save the setting or CAL Esc button to exit without saving and return to P3 0 1509 9000 Rev 4 9 Comfort Chek 400 Operation Manual Figure 4 9 P3 1 Temperature Scale Figure 4 10 Temperature Units 4 11 CO Calibration The instrument defaults to be calibrated manually in ambient air where CO concentration outdoors is around 400 ppm NOTE Though not required it is recommended that you calibrate the instrument prior to each use It is also recommended that the instrum
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