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1. 16 7 7 4 Set alarm limit menm hme e emen sem emis se seme semsse esse s uyata aaa qapa ay uw quas nen nne 17 7 8 Temperature measUre e He hene EEE EEE enhn 18 8 Menu Option calibration setting 18 8 1 Enter the Menus I de ee qu p A 5 a has nne 18 CACHE 19 Con ST 8 3 Enter cancel the calibration etse sisse ses essem ses 20 8 4 Cancel the wrong zeroing 20 8 5 Set measure spee d 20 8 6 Set BGI addr ss aen e a 55559 se e ese sessi sese ee kasq tula anan 20 8 7 Set RS232 baud rate ee se sum sessi se sss se se ssi essem esses se sene ese nene ee 20 92. sse nenne 24 1 2 Return format of the ConST214 e I II II I 24 1 3 Error information code instruction e I III EOE EEE 24 1 4 The series port s communication collocation 25 2 Instructions detailg I II III nhe naie sinis he em se eme em esse sese e sem ensem senses nen nne 26 3 Pressure units shortening HH enne enne enne ene eee 27 4 Pressure units Code III ee bas ses emnes enne 27 5 Data automatically transmit format HH nennen ene 27 ConST 1 Introduction The ConST211 is designed to offer a truly compact cost effective digit
3. DIGITAL PRESSURE GAUGE ss Calibration can be cary enS T 211 DIGITAL PRESSURE GAUGE User s Manual cc amp Beijing ConST Instruments Technology Inc con ST CONTENTS i introduction ee Ir 1 PARTIUM 2 KNEE 4 4 B sicstr cturere eiin sagu pasani UU 5 5 Pushbuttons introdUCtiOn ss m ness ssi nisus s essemus sse e ses ete ensem esee se ne 6 6 Screen areae uha Saa sese sese sense sese s sse hs se sess sus ss es sse sese ssh sese ses sss sse serene us sessi sen sense serene us sene nen 7 aM IIIS LII E P 9 7 Poweron otesi i de 39555 9565 a a 55 95955455 55555 35355 5555 9 72 Pressure Meas je a h au eese sese esses ene esses etse ses eme ense seme en seen sen nen nene 9 HK 10 ZA Pressure Un te a a a E de A ed AEREE ESETE EA L EEIEES EES 12 7 5 Peak detection I eI Ie eme ennemi a sem eme e se eme en seem en seen nnn nne 13 7 6 Backlight ee 14 7 7 Analogue dial 14 HABT 15 7 7 2 Pressure swing Henne nennen ia 15 7 7 3 Overpressure alarm
4. 4 Basic structure RS232 Serial Port Nameplate ConST 211 DIGITAL PRESSURE GAUGE Screen ConST 211 Panay cover AN Http www constgroup com T DIGITAL PRESSURE GAUGE H PressureRange ACE Beijing ConST Instruments Technology Inc Range 0 100 kPa Accuracy 0 05 75 ia gas Overload 200kPa Overload 200kPa NO 0900002 Date 2009 05 s Date 2009 05 Buttons Sensor Cavity Quick Connect Coupling Front View Back View Serial Port Back View Non serial Port Con ST 5 Pushbuttons introduction 1 Operating instruction Power ON OFF Qo Analogue dial Pressing it shortly to select the indication swing fluctuation and low high alarm Pressing it longer to enter into the menu of adjusting low high alarm Peak Value Pressing it shortly to switch the indication among max Peak min Peak and quit Peak Pressing it longer to enter the menu of MENU OPTION GP Pont Pressing it shortly to turn on of turn off the backlight Pressing it longer to select the backlight display time 10s 20s and 30s and loosen it for selection Pressure units Pressing it shortly to switch the different pressure units Pressing it longer to enter into the temperature display menu Zeroing Pressing it for zeroing function The absolute type ConST211 should be press longer 2 Data inputting introduction MD o lt Move decimal digit left and right oc 1 amp
5. Increase decrease the pressure value 3 o Z Confirm the inputting data 4 o ESC Cancel the input data 6 Con ST 3 Menu operation introduction Menu Pressing it longer to enter the MENU OPTION calibration setting 2 1 4 1 Move menu upper or down Enter function 4 ESC Show the previous menu 6 Screen area Analogue dial Scale midpoint indication Pressure swing Scale bar graph Sector pointer area Battery icon MT kolom Pressure units area nH OmmH O 7 mmHg kPaMPa Swing Overpressure alarm Temperature unit Calibration icon Cal lt Lower limit Ww Pressure peak a a a Data display area Picture 6 1 Screen area Con ST The definition of every area as following Battery icon The battery icon IMEE is the indication of full battery The battery icon h is the indication of low battery lt 25 However the ConST211 can contin ually work till it powered off automatically Pressure unit area Total 11 units for selection In order to avoid the readings overflow or too low to read only some of pressure units are selected Calibration icon The mark or symbol of operating calibration Pressure peak The mark or symbol of displaying peak value Higher limit The mark or symbol of high limit pressure Lower limit The mark or symbol of lower limit pressure Temperat
6. fluctuation degree for 2 seriate pressure is 0 1 FS as following figure 7 7 2 Figure7 7 2 Pressure swing indication 15 Lous T 7 7 3 Overpressure alarm Overpressure alarm icon The indication of the overpressure Sector pointer area By using 2 pointers to show the high low alarm limit the 3 pointer to show the current pressure Scale bar graph 0 100 FS minimum scale is 2 FS Scale midpoint Point to 50 Example As for the ConST211 with 0 100 kPa if the current pressure reading is 50 00kPa 50 FS and higher limit is 80kPa 80 FS and lower limit is 40kPa 40 FS the analogue dial shows as following figure 7 7 3 Figure 7 7 3 Overpressure Alarm When the current pressure is beyond the range of lower higher limit the whole screen will flash to warn the users adjust pressure Meanwhile display updated to 3 times per seconds automatically for catching up the changing Once the alarm is over the display goes back to normal speed 16 Con ST 7 7 4 Set alarm limit The setting process as follows 1 Press o button to display the higher limit A and lower limit WV in turn please move the cursor left or right direction by pressing the I 2 By pressing buttons Qo or o to adjust the alarm higher limit A or lower limit wv 3 After the high limit is adjusted the menu will automatically enter the lower limit and then to quit the menu The sequence is High limit Low limit Quit
7. MZERO OBATV E E 0x0 O low battery 1 left 1 4 2 full OBATV battary icon Eos Pressure type 0 gauge 1 absolute Pressure pressure unit Eos MRMD 0x0 Read the actual pressure value A F MRMD pressure value unit Eos OTEMP 0x0 Read the environment temperature A F OTEMP temperature C Eos OK Eos 0x0 Zero the pressure value instrument end the measure data see format 5 Switch the pressure units OUNIT OZERO OCONT OK Eos OK Eos OK Eos D x 3 Z m gt gt Read the code of optional units Read pressure peak value gt gt gt gt gt gt F z F B F F OUINF F OPEAK min pear value unitinfo code Eos max Peak value pressure unit Eos Zero pressure peak value to actual operation go back to factory default w measured pressure value A F OPKZE OK Eos R lt 2x 0x0 Read series port address 1 112 A F OADDR address Eos w Address 5 0x0 Set up the series port address A F OADDR OK Eos w Baud rate Es D E Ox0 Setthe baud rate 2400 4800 9600 A F OBAUD OK Eos W OFALT u ox0 Cancelthe pressure parameterto A F OFALT OK Eos 26 Instructions Z zero M middle F full scale point Standard pressure 01 calibration point w 0x0 xi Entrance i
8. 25x 0 2 OT to 50T 1 50x 1 25x Notes Above X is sealed gauge pressure ConST Instrument type Basic type intrinsically safe type Pressure units kgf cm mmH O mmHg inH O inHg psi kPa MPa Pa mbar bar total 11 units Remark In order to avoid the readings overflow or too low to read only some of pressure units are selected Overpressure warning The screen will flash or glint if pressure over 120 FS Measure speed User can set it factory default is 3 times s Working environment a Temperature 10 C to 50 C b Relative humidity 9596 c Atmosphere pressure 86 106 kPa Compensated temperature 012 to 5016 Storage temperature 20C 70 C Display Big FSTN LCD with blue backlight 5 digit to display Working time Up to 10000 hours 3 times s if battery power is very low the ConST211will power off automatically Power supply One piece 3 6V Primary Lithium Thionyl Chloride High Energy AA size Bobbin Battery The recommend battery for intrinsical safety type ConST211 is SUNMOON 3 6V SIZE AA ER14505 Re calibration period One year recommend RS232 configuration Optional Size 112mm x 35mm total height is 178mm Weight 0 58kg Pressure connector M20x1 5 or custom made Additional functions D Temperature measure 1 C resolution Con ST 2 Peak detection Detect the maximum pressure value and minimum pressure value
9. 8 Pressure 96 indication to display the current pressure percent value by using sector pointer 4 Pressure swing to indicate the swing degree between 2 contiguous pressure value by using one pointer 5 Overpressure alarm using two pointers to show the low high alarm limit the 3th pointer shows the current 96 indication 3 Warning M The installation of ConST211 should be abide of the related regulations of GB3836 15 2000 electrical apparat us in explosive gas atmospherespart 15 electrical installations in hazardous areas except coal mine eqv IEC 6007914 1996 The ConST211 has the indication of battery level Please replace the new battery if the gauge power off automat ically Remark Please replace the recommended battery in nonhazardous locations X Do not connect the RS232 communication cable with ConST211 in a hazardous atmosphere X Don t change the components or structure of gauge That could destroy the explosion proof ability directly To prevent damage do not use ConST211 for long time with overpressure Once the pressure over 120 FS please release the pressure immediately The ConST211 has 11 different pressure units to switch However in order to avoid the reading overflow or too low to read only some of pressure units in selected To prevent damage do not use the imposition of torque between the shell and the pressure quick connect coupling N B The mark A is only for ConST211 intrinsical safety type
10. unavailable 1007 The set parameter is irregular 1016 The current data is not the range of zeroing 1017 The digits of set parameter are not enough 1018 This instruction is unavailable 1019 The length of operation code is overflowed 1020 The r w of instruction is wrong 1024 The set pressure unitis irregular 1025 The serial port s address is overflowed 1026 The baud rate is wrong 1029 Some parameter s character is overflowed 1 4 The series port s communication collocation Communication P 2400 1 112 4800 8 2 N A N A 9600 25 Y Co 2 Instructions details Instructions Knnnn C nn co 0 E 0x0 Function Introduction Right return value Read the barry level OVER Read the software s version number A F OVER version Eos OTYPE n 0x0 Read the instrument s model number A F OVOK model Eos ocooe 0 JReedinstumentsserialnumbe A F OCODE OK Eos OPRDA gt a 0x0 Read instrument s manufacture date A F OPRDA OK Eos w OBLAT 10 20 30 _ Ox0 Setthe time of backlight turn off A F OBLAT OK Eos W OLEDC 0 100 0x0 Set backlinght conteast 0 100 A F OLEDC OK Eos w O close 1 open 0x0 On off keypad F OKEY OK Eos R sF MZERO 0x0 zero the sxcursion value while the zeroing is operating
11. 4 The ConST211 automatically check the validity for inputting data If there is some problem the setting is not eff ective Figure 7 7 4 shows the setting menu a am kPa DBDDT liL LILILILILI vhs TLILILI Figure 7 7 4 The setting menu of high limit and lower limit 17 Con ST 7 8 Temperature measure Press button longer to enter the menu of temperature measure press again to go back to the pressure measure menu The temperature measure range is 30 90C the minimum resolution is 0 1 C Figure 7 8 shows the temperature measure menu Toe Flashing input password Figure 7 8 Temperature measure menu Figure 8 1 1 Enter the password menu 8 Menu Option calibration setting 8 1 Enter the Menu The password to enter the menu is 211 The operation steps as follows 1 Press longer to enter into the password menu as Figure 8 1 1 2 Input password 211 N B If the password is wrong the menu will return to the previous menu 18 Con ST 8 2 Menu option There are 6 options as E uL Rr LL 1700 3r BbRLI Figure 8 2 1 Six menu options Details as below 1 IL RL To enter into the calibration menu 2 Pf The ConST211 have been calibrated already E 0 The ConST211 haven t been calibrated yet If implement this step all pressure calibration will be cancelled Please be careful to use this operation 3 SEL To cancelthe previous zero
12. Calibration Tinction 5554 I III n emet esee EEE EE EEE snis ensem sse e se sese EEE sess se semet senses em en seen ene ene 24 9 1 Calibration conditions IH IH HI EEE ses ss ensem 21 9 2 Calibration process 21 9 3 Cancel calibration I II HI ne HI Ine nemen hse meme e sem siens seems sem emen ses ene nen ne ne 23 10 Replace the battery s HH hne nnne 23 23 Appendix I Communication protocols 24 1 Instructions Tormat n HII HII 3 EEE EEE enses ss 556 555 esee sem ese se es seem en seen nene 24 1 1 PC machine s send format se eI
13. Non RS232 type 11 Contact with us The product specifications and other information contained this manual are subject without notice ConST group has made a concerted effort to provide complete and current information for the proper use of the equipment If there are questions contact Const Tel 0086 10 82782288 Fax 0086 10 82782266 Website www constgroup com Figure 10 1 Spare battery location Email sales 9 constgroup com 23 Con ST Appendix I Communication protocols 1 Instructions format 1 1 PC machine s send format A X Knnnn CO C1 C2 C3 C44 Eos End of symbol A 1 byte the communication address of ConST211 X 1 byte only for W write or R read K 1 byte M for measure operation F for file operation O other operation nnnn 2 5 bytes the item operated by K instruction C0 C1 C2 C3 C4 Parameter refer the specified instruction introduction Eos OxO Hex 1 2 Return format of the ConST211 A X Knnnn CO C1 C2 C3 C4 Eos hereinto A Communication address of the ConST211 X EorF E errorinformation of this frame data F feedbackinformation Knnnn Itis same as the instructions from upper machine CO C1 Feedback data or error information Eos OxO Hex 1 3 Error information code instruction 1000 Receive the overflow from buffer zero 24 Con ST 1001 User has no right to do this operation 1004 The numeric character string has the irregular wrong character 1005 The pressure unit is
14. al pressure gauge to cover a wide range of applications Besides the pressure measure function it can calibrate the standard pressure gauge precision press ure gauge industry pressure gauge blood pressure meter and other pressure instruments Since the firmware of ConST211 is based on special micro power consumption technology one piece of Li ion battery works up to 10000 hours 1 5 years The ConST211 digital pressure gauge has the excellent compatibility of electromagnetism EMC so itis applied in any complicated electromagnetism environment In addition itis approved European CE standard The ConST211 digital pressure gauge has been certified intrinsically safety by PCEC The symbol of explosion proof is Exia Il CT4 Intrinsically Safety and Non incendive for Hazardous Locations Field 0 1 2 Class Il Groups A Band C Temperature Code T1 14 2 Specification Pressure ranges ZU l cistion irme e Mediums EE gauge absolute Yes No gas liquid FS Compensated 100 0 kPa 0 40 kPa 0 60 kPa 0 100 kPa 0 160 kPa e 0 250 kPa 3x 0 400 kPa 0 600 kPa amp 0 1 0 1 6 0 2 MPa 0 2 5 MPa e e e e e 0 1 0 C to 50 C 0 4 MPa 0 6 MPa 0 10 MPa 0 16 MPa 0 20 MPa 3x MPa 10MPa MPa 0 05 0 2 0 25 MPa amp 0 30 MPa 100 MPa 0 40 MPa 0 60 MPa 0 100 MPa e 0 160 MPa e 0 250 MPa e 1
15. ase do the pre pressurizing three times at least If the calibration process is irregular please use the cancellation function Notice the calibration must according to the standard conditions 9 1 Calibration conditions 1 Environment Temperature 20 C 2C Relative humidity 45 75 Atmosphere pressure 86 106 kPa 2 Standard pressure source 9 2 Calibration process Select Menu to enter the calibration menu There are 2 different pressure gauges 1 Single scale gauge Two point pressure calibration the default is higher lower limit The sequence is higher limit lower limit 2 Dual scale gauge Three point pressure calibration the default is lower high limit and zero The sequence is higher lower limit zero higher limit The calibration point can be modified if itis meet following conditions 1 The first point value is less than 2 point 2 Or the 2 point value is less than 3 point 21 Con ST Example The ConST211 with 0 100 kPa IL RI t RENE 1 Select tL ML and press to display the calibration value of lower limit as figure 9 2 1 If use needs to modify this calibration value please input the desired value Otherwise please press Qo to confirm Th m kPa 4 Inn ILILIELILI kPa kPa Dnnnm o nnn t t LILILILILI LILILE 1 1 kPa Inn Iri ILILI LI Flashing input new calibration point The actual pressure measurement value Flashing inp
16. cess of absolute pressure Remark A Please select third item JEL in the menu of MENU OPTION to cancel the zeroing operation B Make sure the instrument is upright while zeroing 11 ConST 7 4 Pressure units Press button to switch different pressure units The sequence is Pa gt kPa gt kgf cm gt inH O gt mmH O gt inHg gt mmHg gt psi gt mbar gt bar gt MPa The conversion relation of all pressure units is as following table 7 4 1 Pa kgf cm inH O mmH O inHg mmHg mbar 1000 IES 0 010197 4 01463 102 047 0 2953 7 50061 0 TCR TU 0 001 Table 7 4 1 Pressure units conversion relation Remark In order to avoid the readings overflow or too low to read only some of pressure units are selected Figure 7 4 shows the methods to switch the different pressure units Figure 7 4 Switching method 12 Lone T 7 5 Peak detection 1 Record maximum minimum peak value Press button to record the peak value Show the maximum pressure w Show the minimum pressure No Icon Automatically record the actual pressure value 2 Reset the peak values Press to cancel the previous peak value and save the current peak value Figure 7 5 shows the display of peak value Figure 7 5 Display peak value 13 ConST 7 6 Backlight Press button to power on off the backlight The selectable time is 10 seconds 20 seco
17. ing operation 4 ur Ht To set measure speed or display update 5 SAdd To set the address of RS232 6 EbAL To set the baud rate of RS232 Attention As to the ConST211 without serial port there aren t 5 and 6 items in the menu option 19 Con ST 8 3 Enter cancel the calibration EAL To enter the calibration gL I To cancel the calibration 8 4 Cancel the wrong zeroing SEL F To cancelthe previous zeroing operation 8 5 Set measure speed Please select ur Ht to enter the selectable menu of measure speed as follows 1 3 3times 1sec 1 2 2times 1sec 1 1 1times 1 sec 2 1 1 times 2sec 3 1 1 times 3 sec 4 1 1times 4 sec 5 1 1 times 5sec 6 1 1 times 6 sec 7 1 1 times 7 sec 8 1 1 times 8sec 9 1 1times 9 sec 10 1 1times 10sec The factory default is 3 times 1 sec 8 6 Set RS232 address Select SAdd to set the RS232 address from the range 1 to 112 The factory default is 1 8 7 Set RS232 baud rate Select BbRI to setthe RS232 baud rate from the options of 2400 and 4800 and 9600 The factory default is 9600 20 ConST 9 Calibration function It is recommended the ConST211 is re calibrated once a year by the skillful professional Otherwise the random operation may be effects the inner parameter and weaken the measure performance The ConST211 should be pre ssurized to full scale and release all pressure In order to achieve the best calibration condition ple
18. ing up the pressure changing When the alarm is over the speed will go back to normal Figure 7 2 shows the pressure measure menu ConST 7 3 Zeroing 1 The type of gauge pressure First of all please connect the ConST211 with atmosphere via connector coupling If the current pressure is in the range of 1 1 FS press o button for zeroing step Figure 7 3 1 shows the zeroing sequence of gauge pressure Figure 7 3 1 The zeroing sequence for gauge pressure ConST211 2 The type of absolute pressure 0 Connect the ConST211 with atmosphere user should know the current atmosphere pressure value Pstandard 2 The actual pressure of ConST211 is Pmeasure 8 Pressing o button longer to enter the data inputting state then please input the actual pressure Pstandard 4 In the menu of pressure measure the measured pressure is changed to Pstandard itis same as the atmosphere pressure value Now the zeroing process is finished 10 Con ST Figure 7 3 2 shows the zeroing sequence for absolute pressure ConST211 1 Contact with atmosphere Measured pressure of ConST211 is 100 02kPa Actual atmosphere is 100 00kPa 3 C3 Co ru 0 100 kPa TE ILILI input lt lt 2 The fisrt digit is flashing for data inputting 8 CJ MI 3 Input the actual atmosphere value 100 00kPa 4 In the menu of pressure measure the measured value of ConST211 is 100 00kPa Figure 7 3 2 Zero pro
19. nds and 30 seconds The selection method is as below 1 Press button to display the following sequence for selection Figure 7 6 The time selection sequence for backlight 2 Release the button to select the suitable time and ConST211 will save it automatically 7 7 Analogue dial Includes three indications indication pressure swing and overpressure alarm Press the key Qo to switch each other The analogue dial includes D Percent pressure 96 2 Pressure swing 8 Overpressure alarm 4 Sector pointer area 5 Scale bar graph 6 Scale midpoint 14 ConST 7 7 1 Percent pressure indication show the current pressure percentage Sector pointer area show the pressure range as sector shape Scale bar graph 0 100 the minimum scale is 2 Scale midpoint point to 50 Example As for the ConST211with 0 100 kPa if the current pressure j I a riri LILI value is 50kPa the indication is 50 as figure 7 7 1 7 7 2 Pressure swing Figure 7 7 1 Pressure indication Pressure swing icon The indication of the pressure fluctuation Sector pointer area By using 1 pointer to show the fluctuation degree of 2 seriate pressure value Scale bar graph Range is 0 25 0 25 FS the min scale is 0 01 FS Scale midpoint Point to 0 00 FS position Example As for the ConST211 with 0 100 kPa if current pressure reading is 50 01kPa and previous pressure is 50 11kPa The
20. nstruction of calibration Input the standard pressure value and calibration points for calibration Function Introduction Right return value ConST A F OCPS OK Eos A F OCP OK Eos 1 save 2 unsaved Pressure unit Quit the pressure calibration process Set the alarm limit A F OCPOK OK Eos A F ALARM OK Eos Read alarm limit Set measure D1 times DO second A F ALARM pressure unit A F MRATE OK Eos High limitt lower limit 1 swing 2 alarm Read the measured times per second Set the work mode on the analog dial A F MRATE seconds times Eos A F ODIAL OK Eos 3 Pressure units shortening H20 mmH O INHG inHg HG mmHg MBAR psi mbar BAR bar 4 Pressure units code The data is read by OUINF is algorism please check the selected pressure units after itis changed to hex data with 2 bytes The selectable pressure code is represented by 2 bytes 1 this unitis available O This unit is unavailable Kgf cm inH O mmH O inHg mmHg psi mbar bar Pa kPa MPa MSB 10 5 Data automatically transmit format LSB 0 Total data length is 16 bytes plus an end symbol after the data Example P 0 0364 MPA 27 THE END THANKS eijin on Instruments Technology Inc
21. ure unit C Data display area To display all data or menu Analogue dial Includes 3 types indication pressure indication pressure swing overpressure alarm The content of the area as below D indication The current pressure percentage 2 Pressure swing The indication of the pressure fluctuation 8 Overpressure alarm The alarm indication for overpressure less or more the limit Sector pointer area Including 51 segments bars or pointers 5 Scale bar graph It has different definitions under the different operation condition 6 Scale midpoint The middle position of Scale bar graph Con ST 7 Basic function 7 1 Power on off Press o to turn on or turn off the ConST211 The instrument does a self test and then shows all applicable data Figure 7 1shows the first screen ak kgt em psimbar S nom kPaMPa swing BBBBHB Figure 7 1 The first screen Figure 7 2 Pressure measurement interface 7 2 Pressure Measure Press the buttons to enter the pressure measure menu the displayed content includes Battery icon Pressure measure value Pressure units Analogue dial indication Remark Initially these register values are set to the factory calibration values If the pressure is over 120 FS the whole screen will flashes to alarm To prevent damager of sensor please release the pressure immediately While the alarm happened the measure speed of ConST211 automatically changes to 3 times s for catch
22. ut new calibration point The actual pressure measurement value lower limit point display menu lower limit calibration menu higher limit point display menu higher limit calibration menu Picture 9 2 1 Picture 9 2 2 Picture 9 2 3 Picture 9 2 4 2 To calibrate lower limit point Press o to confirm till the actual pressure value is stable As Figure 9 2 2 3 Display higher limit point As Figure 9 2 3 please input the desired data if user needs to modify the calibration value Otherwise press to confirm 4 To calibrate higher limit point Press o to confirm till the actual pressure value is stable As Figure 9 2 4 5 The screen returns to the calibration menu the 2 option changes to cL l That shows the calibration is fini shed and effective Remark Three point pressure calibration is mostly same as the two point The only difference is icons A W display together while zero is calibrated 22 ConST 9 3 Cancel calibration Select cL and push the button to cancel the calibration then the ron screen displays cL LI 10 Replacethebattery Please replace the spare battery if the ConST211 power off automatically Spare Battery N Working Battery I LZ Replace the approved battery in non hazardous locations Approved battery SUNMOON 3 6V SIZE AA ER14505 i h Unscrew the bolt and remove the battery cover Install the new battery Remark There is a spare battery for the ConST211 of
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