Operating instructions Electronic pressure
Contents
1. of the final value of the measuring range if OU2 is configured as switching output LED 7 switching status OUT2 lights if output 2 is switched LED 8 switching status OUT1 lights if output 1 is switched 9 Alphanumeric display 4 digits Display of the current system pressure Indication of the parameters and parameter values 10 Set button Setting of the parameter values scrolling by holding pressed incrementally by pressing once 11 Mode Enter button Selection of the parameters and acknowledgement of the parameter values 8 Menu 8 1 Menu structure main menu JEH SE mn 1 Change to menu level 2 extended functions 12 8 2 Explanation of the main menu SP P Upper lower limit value for system pressure at which OUT switches Output function for OUT1 e Switching signal for the pressure limit values hysteresis function H or window function F either normally open no or normally closed nc Output function for OUT2 e Switching signal for the pressure limit values hysteresis function H or window function F either normally open no or normally closed nc e Analogue signal for the current system pressure 4 20 mA I 20 4 mA InEG tCOF Teach zero point calibration tASP Teach analogue start point for system pressure set measured value at which 4 mA is provided 20 mA if OU2 InEG tAEP Teach analogue end point for syste2. tory setting 2 curve of measured values after calibration 9 Installation Before installing and removing the unit make sure that no pressure is ap plied to the system Note display 0 does not mean that no pressure is applied to the system We recommend horizontal installation for high medium temperatures Use in hygienic installation situation following 3A Orientation of the sensor in the pipe and tank To ensure optimised cleanability in the area of the measuring cell according to the sanitary 3A criteria the sensor must not be installed at the lowest point pos 5 see drawing in a pipe or tank to allow the me dium to flow off Use in hygienic areas to EHEDG Make sure that the sensors are integrated into the system in accordance with EHEDG The unit can be fixed to different process connections Options are as follows Installation using an adapter with sealing ring order no E332xx E333xx The adapters are supplied with an EPDM O ring order no E30054 More sealing rings are available as accessories FKM O ring order no E30123 PEEK sealing ring order no E30124 Concerning installation Installation instructions supplied with the adapter Installation using an adapter with metal to metal seal Order no E337xx E338xx Concerning installation Installation instructions supplied with the adapter e Order no E30122 e Order no E30130 adapter with leakage port The adapters
3. for 10 s gt uLoc is displayed On delivery unlocked e Timeout If no button is pressed for 15 s during parameter setting the unit returns to the operat ing mode with unchanged values 9 2 Configure display optional gt Select Uni and set the unit of measurement Ar mbAr MPA KPA PSI only PI2793 PI2794 PI2795 PI2796 PI2797 PI2799 In1HO only PI2789 PI2796 PI2797 PI2798 PI2799 MWS only PI2796 PI2797 PI2 799 mmWS only PI2789 and PI2798 gt Select SELd and set type of indication P system pressure in the unit set in Uni P system pressure in of the set scaling of the analogue output the following applies 0 ASP value 100 AEP value Note display 0 does not mean that no pressure is applied to the system Select diS and set the update rate and orientation of the display d1 update of the measured values every 50 ms d2 update of the measured values every 200 ms d3 update of the measured values every 600 ms rd1 rd2 rd3 display as for d1 d2 d3 rotated by 180 OFF The measured value display is deactivated in the Run mode Pressing one of the buttons indicates the current measured value for 15 s Pressing the Mode Enter button again activates the display mode The LEDs remain active even if the display is deactivated 9 3 Set output signals 9 3 1 Set output functions Select OU1 and
4. 5 Menu structure level 3 simulation oororononsorononincnnnnon nn 16 8 6 Explanation of the menu level 3 oososonnononnnonnnnnonnenonnnn nen 17 3 Paramoter Se MNG sorrue raean REN aE AERE EAA EARI ARA 18 9 1 General parameter Setting cccccssssssesessssssssssesserssessersesssersessseesesaees 18 9 2 Configure display Optional ccccsccsssscsssssessssseeesseescsseesssseteseseees 20 9 3 Set output signals ccc ecsessesssessssssssssesssssseessssceesessseseesecesersesaversesaress 20 9 3 1 Setoutput TUMCHONS sissioni 20 9 3 2 Set Syilehine INNS siccin noo 21 9 3 3 Scale analogue value for OUT2 oo cccsssssceeseeseseeeesessteeecessreeeeees 21 9 4 User settings Optional cccccssssssssscssssssssssseessesessesseesesssecesaee 22 9 4 1 Carry out zero point Galbral01Y s s sslsa i ariicsn ina snura ao 22 9 4 2 Set delay for the switching outputs oseronrennonononzennnnnn 22 9 4 3 Set switching logic for the switching outputs roreronnenm 22 9 4 4 Set damping for the switching signal sesorononrononononronnnn 22 9 4 5 Set damping for the analogue signal oosonoonononnnonnnnonnnn 22 9 4 6 Calibrate curve of Measured values osorononsonnononrennen 23 9 0 Service functions ooronrononnonnononn none 9 9 1 Read min max values for system pressure 9 5 2 Reset all paramete
5. 6 704554 100 09 2010 ifm electronic Operating instructions Electronic pressure sensor efectorson PI27xx es Contents 1 Preliminary ONC esiin ninina anisar otoc 4 1 1 Symbols USS z siat ns an on iaaiaee aneii 4 2 Safety instructions csasciexssiaanseonneanesinesasinsareadisandaansandanhinndansbemnasthvausesnnsaucatioeiaanersincasl 4 3 Functions and features cccccesscsssssssssessessssssesesssesssssesssessesscsseesasaeeeersaserersens 5 3 1 Applications az janka ia lol all S V 5 4 1 Processing of the measured SIQNAIS ccccsseesesssseesssssseeeseseeeesssseeeeeees 5 4 2 Pressure monitoring switching function ccccceeescsessesetseessssseteeesseseeeees 6 4 3 Pressure monitoring analogue function o ossorononinnoznnoerenennnnn 6 4 4 Customer specific Calibration ccssccssssssssesssssessssssssesssssssesssssssssecersesenes 8 dla S LA E ANO ae eee o 9 6 Becia Connec iON sesers oa to 10 7 Operating and display elements nnnnnensneneeesnneesesresrsrnsnsrsrnsrsnsrnsrsrnsrnrsnnens 11 Ry TUN FAN as Rosa T EE A N E N AR E E 12 8 1 Menu structure main MENU idiisstao ot ala 12 8 2 Explanation of the main MENU c cceceeeesscsssecsesseessssssseeseeessseesseeeeess 13 8 3 Menu structure level 2 extended functions ccecsssessesseereseen 14 8 4 Explanation of the menu level 2 ccccsccssecsesssssescsessssssscsesessseesssseseeeeees 15 8
6. If OUT2 is configured as switching output output inactive OPEN or active CLOS If OUT2 is set as analogue output analogue signal between 3 5 and 21 1 mA depending on the set value 9 6 2 Simulation of a process value only active if SEL Proc e Any value between initial value of the measuring range and final value of the measuring range S TIM Time for the simulation process in minutes Start of the simulation process During the simulation process the display alternately shows SIM and the S ON current operation indication 9 6 4 If the simulation process is aborted press Mode Enter or Set briefly S OFF is indicated for 2 s then SEL is active again 17 9 Parameter setting During parameter setting the unit remains in the operating mode It continues its monitoring function with the existing parameters until the parameter setting has been completed Exceptions changes to the parameters COF 9 4 1 CP1 and CP2 9 4 6 take effect immediately 9 1 General parameter setting 3 steps must be taken for each parameter setting Select parameter gt Press Mode Enter until the re D i M ter Set quested parameter is displayed D eo Set parameter value s Press Set and keep it pressed Current setting value of the param ModeEnter Set eter flashes for 5 s After 5 s setting value is changed incrementally by pressing the button once or continuously by keeping the butto
7. are supplied with an EPDM O ring order no E30054 More sealing rings are available as accessories FKM O ring order no E30123 Concerning installation Installation instructions supplied with the adapter Installation to G 1 flange The sealing ring on the sensor is used as process seal The upper sealing area on the process connection must be flush with the tapped hole and have a surface characteristic of min Rz 6 3 gt Grease the sensor thread with a suitable paste gt Insert the unit into the process connection gt Tighten it using a spanner Tightening torque 35 Nm i Installation using a welding adapter 6 Electrical connection The unit must be connected by a qualified electrician The national and international regulations for the installation of electrical equipment must be adhered to Voltage supply according to EN 50178 SELV PELV gt Disconnect power gt Connect the unit as follows 2 x positive switching 2 X negative switching 10 Pint UR Ping We Pin 4 OUT1 Binary switching output pressure monitoring Binary switching output pressure monitoring or analogue output for a Fl 7 Operating and display elements 00909000 Mode Enter Set 0 0 to 8 Indicator LEDs LED 1 to LED 5 system pressure in the specified unit of measurement LED 6 System pressure in of the set scaling of the analogue output if OU2 is configured as analogue output System pressure in
8. normal operating mode It carries out its measurement and evaluation functions and provides output signals accord ing to the set parameters Operating indicators 7 Operating and display elements 10 1 Read set parameters Press Mode Enter until the requested parameter is displayed Press Set briefly gt The unit displays the corresponding parameter value for approx 15 s After another 15 s it returns to the Run mode 25 10 2 Change the display in the Run mode gt Press Set briefly in the Run mode gt The unit indicates the current measured value in the selected type of indication for approx 15 s System pressure in the unit set in Uni System pressure in of the set scaling of the analogue output if OU2 is configured as analogue output System pressure in of the final value of the measuring range if OU2 is configured as switching output 10 3 Error indications Overload pressure above measuring range UL Underload pressure below measuring range SC1 Short circuit in OUT1 SC2 Short circuit in OUTZ2 SC Short circuit in both outputs Err Flashing internal error invalid entry The messages SC SC1 SC2 and Err are displayed even if the display is switched off 26 11 Scale drawing IO had LOV VO EA a 9 NN s Dimensions in mm 1 display 2 LEDs 3 programming button 27 12 Technical data Operating voltage V Current consumpti
9. set the switching function Hno hysteresis function NO Hnc hysteresis function NC Fno window function NO Fnc window function NC Select OU2 and set the function Hno hysteresis function NO Hnc hysteresis function NC Fno window function NO Fnc window function NC I current signal proportional to pressure 4 20 mA INEG current signal proportional to pressure 20 4 mA 20 9 3 2 Set switching limits gt Select SP1 SP2 and set the value at which the output switches gt Select rP1 rP2 and set the value at which the output switches off rPx is always smaller than SPx The unit only accepts values which are lower than the value for SPx 9 3 3 Scale analogue value for OUT2 Set the minimum pressure requested in the system Press Mode Enter until ASP appears Press Set and keep it pressed Current setting value flashes Release Set when the display stops flashing New setting value is displayed Press Mode Enter briefly The current system pressure is defined as start value for the analogue signal Set the maximum pressure requested in the system Press Mode Enter until AEP appears Press Set and keep it pressed Current setting value flashes Release Set when the display stops flashing New setting value is displayed Press Mode Enter briefly The current system pressure is defined as end value for the a
10. Technical data with the media to be measured in all applications For the scope of validity cULus The device shall be supplied from an isolating transformer having a secondary Listed fuse rated either a max 5 amps for voltages 0 20 Vrms 0 28 3 Vp or b 100 Vp for voltages of 20 30 Vrms 28 3 42 4 Vp The Sensor shall be connected only by using any R C CYJV2 cord having suit able ratings 3 Functions and features The unit monitors the system pressure in a plant 3 1 Applications Type of pressure relative pressure rder no Measuring range overpressure sure DOD oa PS oba PSI ba PSI DO ma PS bar PSI ba PS Avoid static and dynamic overpressure exceeding the given overload pres sure by taking appropriate measures The indicated bursting pressure must not be exceeded Even if the bursting pressure is exceeded only for a short time the unit may be destroyed ATTENTION risk of injury Not to be used in a system that has to fullfill D10 1 2 74 03 of 3A standard 74 03 4 Function 4 1 Processing of the measured signals e The unit displays the current system pressure e t generates 2 output signals according to the parameter setting OUT1 Switching signal for system pressure limit value 3 options e Switching signal for system pressure limit value e Analogue signal 4 20 mA e Analogue signal 20 4 mA OUT2 4 2 Pressure monitoring switching function OUTx changes its sw
11. ctive Press Set and keep it pressed until OU is displayed Press Mode Enter briefly gt S OU1 is displayed Press Set to set the requested value OPEN output 1 not active open CLOS output 1 active closed Press Mode Enter briefly S OU2 is displayed Press Set to set the requested value If OU2 Hnc Hno Fnc or Fno OPEN output 2 not active open CLOS output 2 active closed If OU2 I or InEG 3 50 21 10 mA in steps of 0 01 mA Press Mode Enter briefly 24 Process value If SEL is active gt Press Set and keep it pressed until Proc is displayed Press Mode Enter briefly gt S Pr is displayed Press Set to set the requested pressure value Press Mode Enter briefly 9 6 3 Set time for simulation gt Select S TIM and set the value between 1 60 minutes STIM 9 6 4 Start simulation Select S ON Press Set and keep it pressed until the display alternately shows SIM and the current operation indication Current operation indication Current system pressure if SEL OU UK Simulated measured value set in S Pr if SEL Proc After the simulation time has elapsed S OFF is displayed for 2 s then SEL Abort simulation gt Press Mode Enter or Set briefly gt S OFF is displayed for 2 s then SEL 10 Operation After power on the unit is in the Run mode
12. elay time is not active 9 4 3 Set switching logic for the switching outputs gt Select P n and set PnP or nPn Pan 9 4 4 Set damping for the switching signal Select dAP and set a value between 0 00 and 30 00 s at 0 00 dAP is not active dAP value response time between pressure change and change of the switching status in seconds dAP influences the switching frequency fmax 1 2dAP dAP also has an effect on the display 9 4 5 Set damping for the analogue signal Select dAA and set a value between 0 00 and 30 00 s at 0 00 dAA is not active dAA value response time between pressure change and change of the analogue signal in seconds 22 9 4 6 Calibrate curve of measured values Seta defined reference pressure between ASP and AEP in the system Select CAL Press Set briefly CP1 is displayed Press Set for 5 s The pressure measured by the unit is displayed Press Set until the set reference pressure is indicated measured pressure reference pressure or the corresponding analogue signal is provided to OUT2 Maximum correction value 2 of the final value of the measuring range Press Mode Enter briefly CP1 is displayed Press Mode Enter briefly gt CP2 is displayed Continue with a or b a Finish calibration Press Mode Enter briefly gt CAL is displayed b Change a 2nd point on the curve of measured values gt Seta sec
13. itching state if it is above or below the set switching limits SPx rPx The following switching functions can be selected e Hysteresis function normally open OUx Hno fig 1 e Hysteresis function normally closed OUx Hnc fig 1 First the set point SPx is set then the reset point rPx with the requested difference Window function normally open OUx Fno fig 2 e Window function normally closed OUx Fnc fig 2 The width of the window can be set by means of the difference between SPx and rPx SPx upper value rPx lower value P system pressure HY hysteresis FE window 4 3 Pressure monitoring analogue function The analogue output can be configured e OQU2 defines whether the set measuring range is provided as 4 20 mA OU2 I or as 20 4 mA OU2 InEG Scaling can be set by means of the teaching process or by entering a value for the ASP and AEP parameters e Teaching the analogue start point ASP or setting the parameter ASP defines at which measured value the analogue signal is 4 mA 20 mA at InEG e Teaching the analogue end point tAEP or setting the parameter AEP defines at which measured value the output signal is 20 mA 4 mA at InEG Minimum distance between ASP and AEP 25 of the final value of the measuring range turn down 1 4 Factory setting Measuring range scaled P system pressure MAW initial val
14. m pressure set measured value at which 20 mA is provided 4 mA if OU2 InEG SP2 rP2 Upper lower limit value for system pressure at which OUT2 switches Extended functions opening of menu level 2 13 8 3 Menu structure level 2 extended functions 1 Change to the main menu 2 Change to menu level 3 simulation 14 8 4 Explanation of the menu level 2 Uni Standard unit of measurement for system pressure Display mode SELd Pressure in the unit set in Uni e Pressure in of the set scaling of the analogue output ASP Analogue start point for system pressure measured value at which 4 mA is provided 20 mA if OU2 InEG Analogue end point for system pressure measured value at which 20 mA is provided 4 mA if OU2 InEG Maximum value memory for system pressure UK Damping for analogue output OUT2 only active if OU2 I or InEG 15 8 9 Menu structure level 3 simulation o co SE 1 60 min extended functions 2 Change to menu level 2 O O O uH H J l LLI LLI no D U lt c TD N U s S e22 lt T M 16 8 6 Explanation of the menu level 3 SEL Status to be simulated e Output functions OU fig A Process value Proc fig B 0U1 Simulation values for OUT1 only active if SEL OU e Output inactive OPEN or output active CLOS S OU2 Simulation values for OUT2 only active if SEL OU e
15. n pressed Numerical values are incremented continuously To reduce the value let the display move to the maximum setting value Then the cycle starts again at the minimum setting value Acknowledge parameter value gt Press Mode Enter briefly hia D GPI gt The parameter is displayed again eS The new setting value is saved Set other parameters gt Start again with step 1 Finish parameter setting Press Mode Enter several times until the current measured value is displayed or wait for 15 s gt The unit returns to the operating mode 18 e Change from menu level 1 to menu level 2 Press Mode Enter until EF is displayed uliate Mode Enter Set Press Set briefly gt The first parameter of the submenu is displayed here Uni If the menu level 2 is protected by an ac cess code Cod1 flashes in the display Press Set and keep it pressed until the valid code no is displayed Press Mode Enter briefly On delivery by ifm electronic no access restriction Mode Enter Set OG e Locking unlocking The unit can be locked electronically to prevent unintentional settings gt Make sure that the unit is in the normal operating mode feel D Press Mode Enter Set for 10 s S gt Loc is displayed sv Ta 10s During operation Loc is briefly displayed if you try to change parameter values For unlocking Press Mode Enter Set
16. nalogue signal ASP AEP can only be set automatically within defined limits 12 1 Setting ranges If automatic setting is carried out at an invalid pressure value UL or OL is displayed After acknowledgement by Mode Enter Err flashes the ASP value AEP value is not changed As an alternative Select ASP and set the measured value at which 4 mA is provided 20 mA at OU2 InEG Select AEP and set the measured value at which 20 mA is provided 4 mA at OU2 InEG Minimum distance between ASP and AEP 25 of the final value of the measuring range turn down 1 4 21 9 4 User settings optional 9 4 1 Carry out zero point calibration gt Select COF and set a value between 5 and 5 of the final value of the measuring range The internal measured value 0 is shifted by this value As an alternative automatic adjustment of the offset in the range 0 bar 15 Make sure that no pressure is applied to the system Press Mode Enter until tCOF appears Press Set and keep it pressed The current offset value in flashes briefly The current system pressure is displayed Release SET Press Mode Enter briefly to confirm the new offset value 9 4 2 Set delay for the switching outputs dS1 dS2 switch on delay for OUT1 OUT2 dr1 dr2 switch off delay for OUT1 OUT2 Select dS1 dS2 dr1 or dr2 and set a value between 0 1 and 50 s at 0 0 the d
17. on mA Current rating mA Short circuit protection reverse polarity protection overload protection integrated watchdog Voltage drop V Poweron delay TWIG S sttsiotnoianolann oso ob il 0 4 Min response time switching output ms Switching freguency Hz Analogue output Max load 0 Step response time analogue output ms Accuracy deviations in of the span Switch point accuracy Characteristics deviation linearity incl hysteresis and repeat lt 02 lt 05 ability E _ Temperature coefficients TEMPCO in the compensated temperature range 0 70 C in of the span per 10 K 28 Materials wetted parts stainless steel 316L 1 4435 surface characteristics Ra lt 0 4 Rz 4 ceramics 99 9 AI203 PTFE Housing materials stainless steel 316L 1 4404 FPM Viton PTFE PBT Pocan PEI PFA Protection rating IP 67 IP 68 IP 69K Protection class Insulation resistance MQ gt 100 500 V DC Shock resistance g 50 DIN IEC 68 2 27 11 ms Vibration resistance g 20 DIN IEC 68 2 6 10 2000 Hz Switching cycles MIM sessirnar iiaii aE EN EEE 100 million Ambient temperature C Medium temperature C 25 125 145 max 1 h Storage temperature C EMG EN 610004 2 ESD s ln sst k bia ra RA HRE la o 4 8kV EN 610004 3 HF radiated cess cccccarsconsthnandeneraiiecrienulstbae ieatieladnsasnsehine Bo n 10 V m EN 61000 4 4 Burst ccccccscscscssscssessssescscscsesesssesec
18. ond defined reference pressure in the system Minimum distance between the calibration points CP1 and CP2 5 of the final value of the measuring range Press Set for 5 s The pressure measured by the unit is displayed Press Set until the set reference pressure is indicated measured pressure reference pressure or the corresponding analogue signal is provided to OUT2 Maximum correction value 2 of the final value of the measuring range Press Mode Enter briefly CP2 is displayed Press Mode Enter briefly gt CAL is displayed the process is finished 23 9 5 Service functions 9 5 1 Read min max values for system pressure gt Select HI or LO and press Set briefly HI maximum value LO minimum value Delete memory gt Select HI or LO Press Set and keep it pressed until is displayed Press Mode Enter briefly 9 5 2 Reset all parameters to factory setting Select rES gt Press Set and keep it pressed until is displayed Press Mode Enter briefly It is recommended to take down your own settings in the table before carry ing out a reset 13 Factory setting 9 6 Simulation function 9 6 1 Open menu level 3 simulation gt Select EF and press Set briefly to open menu level 2 Select SIM and press Set briefly to open menu level 3 gt SEL is displayed 9 6 2 Set simulation value Output states If SEL is a
19. rs to factory setting oosonononoononononnnnm 9 6 Simulation AMG TOM ssa oi s tnvi on o nn 9 6 1 Open menu level 3 simulation sosonononrazononnnsenenononnnnnnnnnn 9 6 2 Set simulation value ce cceessescsccsecsesecseescessecsssassesssessesaecasseseesasens 9 0 9 Set time for SIMUlaloM seisidssvcnissavsassvaronieassiensiadsrnsdvsanacsdavectdeatsiwasdnesiiain 9 64 Start SINMULAMOM ses isinicntwnis as aaa ai r 10 VICI eno 10 1 Read set 612 211 gt S Seen eer ee ener eens Se en ee 10 2 Change the display in the Run mode ou cessecsesessesesesetsesceseeesesseseeeees MG Soles Ol MIN UN a AE SCAG AWG e A E Passatsaarcadataias tits sd tonsa i aa a e Eo 2 mee mee ee ee A ean nee Re ee T an N ET 121 Saling Tanges smisiiesosonecan sentsi a E eee o FACON S oN 6 eee meee eect eee TE a E ee ee eee emer eee 1 Preliminary note 1 1 Symbols used gt Instruction gt Reaction result Designation of pushbuttons buttons or indications Cross reference Important note Non compliance can result in malfunctions or interference 2 Safety instructions e Please read this document prior to set up of the unit Ensure that the product is Suitable for your application without any restrictions e f the operating instructions or the technical data are not adhered to personal injury and or damage to property can occur e Check the compatibility of the product materials 12
20. scscsssssesesssssscscessesesesacacacsees 2 kV EN 61000 4258 SUGE srna hiolulan chn d ani anon enini b d Zrn h ku 0 5 1kV EN O 1000 426 HF conducted Zpuos u ine ao na orla lan rn 10V 1 1 All indications are referred to a turn down of 1 1 2 Limit value setting to DIN 16086 29 12 1 Setting ranges N o N lt N p LO 62 jj N S z c Jr S S LO S 2 N N 2 Se lc ol LS LOICITSISOISCICIlalolelalo s lololalbn ay cd esa K A ERE eGA o les 2 5 ea SLs TNT COT N IOIO NIINI ITN ST N N HI N Oo OoO o o otTrmz clio 2 TS SI ae gt sli v S o ol 2 5M o 2 a 1 oO a ms N a a N Q Se Q Ww OMS Q D 68 ld 6 ld VEZ id G6Z ld 96 4 ld L6LZld 86LZld a AP 30 662 ld step r AP 13 Factory setting ASP tASP AEP tAEP COF tCOF bAr mbAr a o the indicated percentage of the final value of the measuring range VMR of the cor responding sensor is set x More information at www ifm com 31
21. ue of the measuring range MEW final value of the measuring range OU2 I OU2 InEG In the set measuring range the output signal is between 4 and 20 mA OU2 I or between 20 and 4 mA OU2 InEG It is also indicated System pressure above the measuring range Output signal gt 20 mA at OU2 I Output signal 3 8 to 4 mA at OU2 InEG System pressure below the measuring range Output signal 3 8 to 4 mA at OU2 I Output signal gt 20 mA at OU2 InEG 4 4 Customer specific calibration The customer specific calibration changes the curve of measured values com pared to the real measured values shifting change of the gradient gt 9 4 6 CAL e Two calibration points can be defined CP1 CP2 The two points are inde pendent of each other e The two calibration points must be within the scaled measuring range 4 3 Pressure monitoring analogue function e The zero point calibration COF influences the calibration of the curve of measured values Recommendation set COF to 0 9 4 1 COF then calibrate the curve of measured values After a change the calibration can be reset to factory setting 9 5 2 rES e P measured pressure P modified measured value e CP1 calibration point 1 CP1 modified measured value for CP1 e CP2 calibration point 2 CP2 modified measured value for CP2 e 1 curve of measured values at fac
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