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Chapter 7 ____________________________________________________________ Technical Data

VAISALA ______________________________________________________________________ 123

Dimensions (in mm)

0506-035

Figure 48

Barometer Body Dimensions

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Содержание BAROCAP PTB330

Страница 1: ...USER S GUIDE Vaisala BAROCAP Digital Barometer PTB330 M210855EN C...

Страница 2: ...t prior written permission of the copyright holder The contents are subject to change without prior notice Please observe that this manual does not create any legally binding obligations for Vaisala t...

Страница 3: ...Options 17 Pressure Measurement 18 Outer Structure of the Barometer 19 Inner Structure of the Barometer 20 CHAPTER 3 INSTALLATION 21 Mounting the Housing 21 Standard Mounting without Mounting Plate 21...

Страница 4: ...3 Pressure tendency graphics and codes 53 Using Serial Line 55 Missing Trend 55 Graphic History 55 Information Display 57 Display Settings 58 Changing Quantities 58 Changing Units 58 Rounding 59 Backl...

Страница 5: ...3 ERRS 84 VERS 84 Resetting barometer By Using Serial Line 84 RESET 84 Locking Menu Keypad by Using Serial Line 85 LOCK 85 Data Recording 86 Selecting Data Recording Quantities 86 DSEL 86 View Recorde...

Страница 6: ...losing the Adjustment Mode 108 Pressure Adjustment 109 Adjustments Using Display Keypad 110 1 point Adjustment Using Serial Line 111 LCP1 111 MPCP1 112 Analog Output Adjustment Ch1 113 Using Display K...

Страница 7: ...___________ VAISALA________________________________________________________________________ 5 APPENDIX A CALCULATION FORMULAS 127 APPENDIX B UNIT CONVERSION TABLES 129 APPENDIX C PA11A EMULATION MODE...

Страница 8: ...________________________________________________________________________________ 6 _______________________________________________________________________________...

Страница 9: ...ptional M 12 8 Pin Connector 34 Figure 19 Wiring of Optional D 9 Connector 35 Figure 20 AC Power Supply Module 36 Figure 21 Galvanic Output Isolation 41 Figure 22 Analog Output 1 module 42 Figure 23 A...

Страница 10: ...___ 8 _______________________________________________________________________________ Figure 45 Error Indicator and Error Message 104 Figure 46 Adjustment Menu 109 Figure 47 PTB330 Adjustments 109 Fig...

Страница 11: ...5 Adjustment and Calibration Commands for Barometer Module P1 108 Table 16 Barometric Pressure range 500 1100 hPa at 20 C 117 Table 17 Barometric pressure range 50 1100 hPa at 20 C 117 Table 21 Operat...

Страница 12: ...________________________________________________________________________________ 10 ______________________________________________________________________________...

Страница 13: ...0 Contents of This Manual This manual consists of the following chapters Chapter 1 General Information This chapter provides general notes for the manual and the product Chapter 2 Product Overview Thi...

Страница 14: ...mode of the PTB330 series General Safety Considerations Throughout the manual important safety considerations are highlighted as follows Feedback Vaisala Customer Documentation Team welcomes your comm...

Страница 15: ...touching removing or inserting any objects inside the equipment housing To make sure you are not delivering high static voltages yourself Handle ESD sensitive components on a properly grounded and pro...

Страница 16: ...demarks of Microsoft Corporation in the United States and or other countries License Agreement All rights to any software are held by Vaisala or third parties The customer is allowed to use the softwa...

Страница 17: ...part shall should Vaisala so require be sent to the works of Vaisala or to such other place as Vaisala may indicate in writing freight and insurance prepaid and properly packed and labelled unless Vai...

Страница 18: ...User s Guide ______________________________________________________________________ 16 __________________________________________________________________ M210855EN C...

Страница 19: ...an be selected Alternatively analog outputs can be chosen between current and optional voltage signals A local graphical display is available as well The quantities measured and calculated by PTB330 a...

Страница 20: ...applications The BAROCAP sensor has excellent hysteresis and repeatability characteristics low temperature dependence and a very good long term stability The ruggedness of the BAROCAP sensor is outst...

Страница 21: ...ructure of the Barometer 503 001 Figure 1 Barometer Body QFE pressure QFE Height Corrected Pressure HCP Pressure tendency A3h Numbers refer to Figure 1 on page 19 1 Signal powering cable gland 2 Press...

Страница 22: ..._______________ M210855EN C Inner Structure of the Barometer 0705 091 Figure 2 Inside of Open Barometer Numbers refer to Figure 2 on page 20 1 Adjustment button with indicator LED 2 Power supply modul...

Страница 23: ...CHAPTER 3 INSTALLATION This chapter provides you with information that is intended to help you install the product Mounting the Housing The housing can be mounted either without the mounting plate or...

Страница 24: ...de 214829 can be installed directly on wall or onto a standard wall box also US junction box When wiring through back wall remove the plastic plug from the wiring hole in the barometer before mounting...

Страница 25: ...il installation kit includes a wall mounting kit 2 clip fasteners and 2 screws M4 x 10 DIN 7985 Vaisala order code 215094 1 Attach two spring holders to the plastic mounting plate by using the screws...

Страница 26: ...r pole or pipeline Vaisala order code 215108 includes the metal mounting plate and 4 mounting nuts for pole mounting When mounting the arrow in the metal mounting plate must point upwards see Figure 1...

Страница 27: ...hield with installation kit and installation kit for pole or pipeline 0503 041 Figure 10 Mounting with Metal Wall Mounting Plate Number refers to Figure 9 on page 25 1 Mounting nuts M8 4 pcs Numbers r...

Страница 28: ...th Installation Kit 0503 008 Figure 12 Mounting Rain Shield with Installation Kit Numbers refer to Figure 12 on page 26 1 Fasten the rain shield with installation kit Vaisala order code 215109 to the...

Страница 29: ...he installation hole and provide a more finished look Note that the panel mounting frame is not intended to bear the weight of the transmitter and does not include any mounting supports Use the panel...

Страница 30: ...C 0703 068 Figure 14 Panel Mounting Dimensions General about Wiring and Grounding Cable Bushings A single electrical cable with a screen and three to ten wires is recommended for power and signal conn...

Страница 31: ...15 Cable Bushings Numbers refer to Figure 15 on page 29 1 Cable for signal powering 8 11 mm 2 Pressure port 3 Cable for optional power supply relay module 8 11 mm NOTE When there is high electric nois...

Страница 32: ...____________ 30 __________________________________________________________________ M210855EN C Grounding the Cables Ground the screen of the electrical cable properly to achieve the best possible EMC...

Страница 33: ...omed cap nut item 1 onto the lower part item 5 Grounding the Barometer Housing In case you need to ground the barometer housing the grounding connector is found inside the housing Make sure that diffe...

Страница 34: ...pply module see section AC Power Supply Module on page 36 0703 019 Figure 17 Screw Terminal Block on Motherboard Numbers refer to Figure 17 on page 32 1 Power control 0VDC OFF 5VDC ON if feature enabl...

Страница 35: ...ion Serial Line Communication on page 68 4 When wiring RS 485 module relay module or additional analog output module see sections RS 422 485 1 Interface Module on page 46 Relay Module RELAY 1 on page...

Страница 36: ...Terminal Wire Serial Signal Analog Signal RS 232 EIA 232 RS 485 EIA 485 1 White Data out TX A 2 Brown serial GND serial GND Signal GND for both channels 3 optional Green External power control serial...

Страница 37: ...ignal RS232 RS 232 EIA 232 RS 485 EIA 485 1 Red 2 White TX TX 3 Black RX RX 4 optional Yellow External power control External power control External power control 5 Brown Ground Ground 6 Green LO Aout...

Страница 38: ...onnected to the power supply module only by an authorized electrician A readily accessible disconnect device shall be incorporated in the fixed wiring 0506 027 Figure 20 AC Power Supply Module Numbers...

Страница 39: ...pply module in Figure 15 on page 29 4 Connect the wires from the terminals of the power supply module marked with and to the terminals POWER 10 35 V on the motherboard of the barometer 5 Connect the A...

Страница 40: ...d alimentation du transmetteur lorsqu il est en service Ne pas raccorder le secteur au module d alimentation lorsque celui ci n est pas install dans le transmetteur PTB330 Toujours raccorder un borni...

Страница 41: ...an de eisen van de richtlijn 73 23 EEG Laagspanningsrichtlijn De stroom kan aan de stroomtoevoer module aangesloten worden alleen door een bevoegde monteur Het is niet toegestaan de stroomtoevoer modu...

Страница 42: ...ugin s eminimo jungties is produkts atbilst Zemsprieguma direkt vai 73 23 EEC Str vas piesl gumu var piesl gt pie baro anas avota modu a tikai autoriz ts elektri is Neatvienot baro anas avota moduli n...

Страница 43: ...or Output If galvanic isolation of the power supply line from the output signals is needed the barometer can be ordered with optional output isolation module This module prevents harmful grounding loo...

Страница 44: ...he housing on the module slot 1 with four screws 3 Connect the flat cable between the analog output module and the motherboard s pins MODULE 1 4 Take out the protective plug from the cable gland and t...

Страница 45: ...module is installed in the factory continue with step 5 2 To attach the module first place a protective plate to the bottom of the housing then fasten the relay module to the top of the plate with fo...

Страница 46: ...electing the Activation State of the Relay on page 44 7 Connect the power and close the cover Selecting the Activation State of the Relay The middlemost C terminal and either one of the terminals NO N...

Страница 47: ...igure 24 on page 45 1 Indication led for the relay 1 3 5 or 7 2 Relay test buttons 3 Flat cable pins 4 Indication led for relay 2 4 6 or 8 WARNING The relay module may contain dangerous voltages even...

Страница 48: ...t cable between the RS 485 module and the motherboard s pins MODULE1 Communications 4 Pull the network wirings through the cable gland 5 Connect the twisted pair wires 1 or 2 pairs to the screw termin...

Страница 49: ...nds data to the PTB330 barometer through terminals RxA and RxB and receives data from PTB330 barometer through terminals TxA and TxB 10 When operating in communication mode RS 422 set both switches 3...

Страница 50: ..._______________________________________ 48 __________________________________________________________________ M210855EN C 0708 014 Figure 26 4 Wire RS 485 Bus Table 5 4 Wire Switch 3 On RS 485 master...

Страница 51: ..._______________________________________ Installation VAISALA_______________________________________________________________________ 49 0708 015 Figure 27 2 Wire RS 485 Bus Table 6 2 Wire Switch 3 Off...

Страница 52: ...User s Guide ______________________________________________________________________ 50 __________________________________________________________________ M210855EN C...

Страница 53: ...the cover of the barometer is lit continuously indicating normal operation When using the optional display and turning on the barometer for the first time the language selection menu opens Select the...

Страница 54: ...row button as many times as needed The option is selected once it is highlighted 4 Submenu is indicated with an arrow pointing right Open a submenu by pressing the right arrow button 5 Set value by pr...

Страница 55: ...2 Figure 30 P3H Tendency Pressure tendency graphics and codes The characteristic symbols of pressure tendency during the 3 hours preceding the time of observation are described as follows Numbers refe...

Страница 56: ...gher than three hours ago 2 Increasing steadily or unsteadily atmospheric pressure now higher than three hours ago 3 Decreasing or steady then increasing or increasing then increasing more rapidly atm...

Страница 57: ...a code The absence of the pressure trend is indicated in a similar manner too Graphic History The graphical display shows the data trend of the selected quantities one at a time The graph is updated a...

Страница 58: ...Press an arrow button to move the cursor vertical bar along the time axis The numerical value at the cursor position is shown at the left upper corner Time from the present to the chosen moment is sho...

Страница 59: ...sic display The following information will be shown present or past unacknowledged errors if any device identification product name version and serial number information on barometer modules adjustmen...

Страница 60: ...sic display See Table 1 on page 18 for available quantities Changing Units 1 Open the MAIN MENU by pressing any of the arrow buttons 2 Select Display and press the right arrow button 3 Use the up down...

Страница 61: ...the last press of any button When pressing any button the light turns on again 1 Open the MAIN MENU by pressing any of the arrow buttons 2 Select Display then press the right arrow button 3 Select Bac...

Страница 62: ...the OK button 6 Press EXIT to return to the basic display Diagnostic Settings Use the display keypad to set the pressure stability limits 1 Press any of the arrow buttons to open the MAIN MENU 2 Sele...

Страница 63: ...s the right arrow button to confirm your selection 4 Select Bit rate Serial format Comm mode by pressing the CHANGE button Use the up down arrow buttons to select and press SELECT to confirm your sele...

Страница 64: ...o the menus is locked The key symbol indicates the activation of this feature 1 Open the MAIN MENU by pressing any of the arrow buttons 2 Select System press the right arrow button 3 Select Menu PIN p...

Страница 65: ...m your selection Press the YES button to reset all settings to the factory defaults In case you change your mind and want to exit the menu without making any changes press the NO button Clearing Graph...

Страница 66: ...by pressing the right arrow button Use the up down arrow buttons to select the quantity and press SELECT to confirm your selection 5 Select Quantity press the CHANGE button Select quantity by using t...

Страница 67: ...relay Use the display keypad to test the operation of relays 1 Open the MAIN MENU by pressing any of the arrow buttons 2 Select System press the right arrow button 3 Select Diagnostics press the righ...

Страница 68: ...nfirm your setting 8 Select Scale upper limit by pressing the up down arrow buttons Press the SET button Adjust the upper limit value by pressing the arrow buttons up down left right Press the OK butt...

Страница 69: ...e The user must not input an error value that will cause unexpected problems in process monitoring Use the display keypad to set the analog output fault indication 1 Press any of the arrow buttons to...

Страница 70: ...a PC real time window function The MI70 Link Interface Software is available from Vaisala 1 Connect the connection cable between the serial port of your PC and the Service Port of the barometer 2 Chec...

Страница 71: ...nector and User Port Terminal on Motherboard User Port Connection Use suitable serial cable between the user port RxD GND and TxD screw terminals and the PC serial port Numbers refer to Figure 36 on p...

Страница 72: ...Port Connections to pins 4 6 7 and 8 on PC serial port are required only if you are using software requiring hardware handshaking After power up the barometer in STOP mode outputs the software versio...

Страница 73: ...al click Start select Help to open Windows help and search for HyperTerminal 2 In the New Connection window of the HyperTerminal define a name for the barometer serial connection for example PTB330 Cl...

Страница 74: ..._________________________________________________ 72 __________________________________________________________________ M210855EN C 0507 027 Figure 38 Starting Hyper Terminal Connection 0507 028 Figur...

Страница 75: ...ing Enter commands by inputting them on your computer and pressing the Enter key cr General commands BNUM Shows the device and module batch numbers SERI Shows or sets the serial port settings for the...

Страница 76: ...nfigured form SMODE STOP POLL RUN Shows or sets the start mode SDELAY 0 254 0 2540 ms Shows or sets the answer delay for the serial line in tens of milliseconds ADDR 0 255 Sets the barometer address O...

Страница 77: ...N mode TIME Shows or changes the current time DATE Shows or changes the current date set UNIT Shows or sets unit for a quantity If several quantities offer the same unit these will also be changed to...

Страница 78: ...NOTE The calibration and adjustment commands are available in adjustment mode only Press the adjustment button before inputting these commands Setting and testing the analog outputs AMODE Displays the...

Страница 79: ...iations of the quantities presented in Table 1 on page 18 The modifiers are presented in Table 11 on page 77 Example form pressure P U r n pressure P U r n Command FORM will return the default output...

Страница 80: ...shown in the unit fed by the user Example unit Pa P Pa P3h Pa P1 Pa P2 Pa DP12 Pa HCP Pa QFE Pa QNH Pa Table 12 Output Quantities and Units Quantity Output Quantity Available Output Units Pressure mea...

Страница 81: ...Pa QNH Pa Use the UNIT command to list the available measurement units for the quantities Measurement Related Commands TQFE Use the TQFE command to show or set the temperature for QFE corrected pressu...

Страница 82: ...ds Valid range of averaging time is 1 600 seconds AVRG x Example avrg Average filter 1 0 s HHCP The HHCP command shows or sets the altitude for height corrected pressure The valid range of HCP height...

Страница 83: ...al Settings Using Serial Line Use the serial line command SERI b p d s to set communication settings for the user port SERI b p d s Example seri Baud P D S 9600 N 8 1 You need to reset the barometer t...

Страница 84: ...putting interval for the RUN mode INTV xxx yyy Example intv 10 min Output interval 10 min ECHO Use the command ECHO to set the user port echo The command either enables or disables echo of characters...

Страница 85: ...rent barometer configuration Command is similar but can also be used if the barometer is in POLL mode Example PTB330 1 01 Serial number A1234567 Batch number B8901234 Output format P T P1 T P2 T DP12...

Страница 86: ...e the command ERRS to display all unacknowledged errors and clear them If an error is still active it will be displayed again with the ERRS command Example errs PASS No errors errs FAIL Error Operatin...

Страница 87: ...y or turn on the menu lock with a 4 digit PIN code for example 4444 LOCK x yyyy Example lock 1 4444 Keyboard lock 1 4444 Use the LOCK command to turn on the menu lock without PIN code access possibili...

Страница 88: ...the serial connection or MI70 Link Interface Software Selecting Data Recording Quantities If the device is provided with the optional display the recorded quantities are always those selected for the...

Страница 89: ...es The device records six files six observation periods for each selected quantity Thus total amount of the files depends on the amount of the selected quantities being at minimum 6 and at maximum 24...

Страница 90: ...correct date and time with TIME and DATE commands if needed PLAY x Example play 4 P latest 10 days 2000 12 20 18 31 17135 Date Time trend min max yyyy mm dd hh mm ss mbar mbar mbar 2000 12 21 20 31 1...

Страница 91: ...of the quantities available can be chosen Measurement Based Relay Output Modes Relay Setpoints When the measured value is in between the above and below values the relay is passive When choosing lowe...

Страница 92: ...measurement fails Hysteresis The hysteresis function prevents the relay switching back and forth when the measured value is near to the setpoint values The relay is activated when the measured value...

Страница 93: ...C and NO outputs are closed Not measuring state error state or power off relay released C and NC outputs are closed ONLINE STATUS Live measurement data available relay active C and NO outputs are clos...

Страница 94: ...INE STATUS Relay Output Modes FAULT ONLINE STATUS relays are usually used in conjunction with an analog output to obtain validity information for the output value Enabling Disabling Relays You can dea...

Страница 95: ...follow pressure measurement and relay 2 to follow measurement of pressure from barometer module 1 Two relay setpoints are set for both relays rsel P P1 Rel1 P below 980 00 hPa Rel1 P above 995 00 hPa...

Страница 96: ...ng relay 1 to follow the fault status and relay 2 to follow the pressure measurement rsel fault p Rel1 FAUL below Rel1 FAUL above Rel1 FAUL hyst Rel1 FAUL enabl ON Rel2 P below Rel2 P above 1050 00 hP...

Страница 97: ...twork avoid self powered converters as they don t necessarily support the needed power consumption Networking Commands Set the RS 422 485 interface by using the following commands RS 485 configuration...

Страница 98: ...al line ECHO x Echo function shall be always disabled OFF when using the 2 wire connection When using the 4 wire connection you can disable enable the echo setting SMODE Use the SMODE command to set t...

Страница 99: ...ts the RUN mode output interval The time interval is used only when the RUN mode is active For example the output interval is set to 10 minutes INTV 10 min Output interval 10 min Setting RUN output in...

Страница 100: ...ut the reading once in POLL mode SEND aa SCOM Use the SCOM command to show or set an alias for the SEND command The given alias cannot be a command already in use Example scom meas Send command meas s...

Страница 101: ...ut The analog outputs are set in the factory according to the order form In case you want to change the settings follow these instructions See section Analog Output Module on page 42 Changing Output M...

Страница 102: ...illustrates how to select a 0 5 V voltage output 0706 031 Figure 44 Dip Switch Selection Example The number refers to Figure 43 on page 100 1 Current voltage selection output switches from 1 to 2 2 C...

Страница 103: ...quantities for the analog outputs with the command ASEL Note that the optional quantities can be selected only if they have been selected when ordering the device ASEL xxx yyy Enter always all the qu...

Страница 104: ...d without parameters The number of quantities as parameters depends on the number of AOUT 1 modules The valid range of test voltage current is the same as the analog output range ATEST x y Example ate...

Страница 105: ...tenance Cleaning Clean the barometer enclosure with a soft lint free cloth moistened with mild detergent Error States In error state the quantity is not measured and the output is shown as follows ana...

Страница 106: ...the barometer to the Vaisala Service Center E11 Internal EEPROM write error Internal barometer failure Remove the barometer and return the faulty unit to Vaisala Service E12 E15 Add on module 1 2 3 4...

Страница 107: ...rs too large 1 Check that the barometer modules are measuring the same pressure or 2 Check if one of the barometer modules is out of the valid range or 3 Check if the DPMAX value is set too low E16 E1...

Страница 108: ...User s Guide ______________________________________________________________________ 106 _________________________________________________________________ M210855EN C...

Страница 109: ...Vaisala Service Centers for details It is recommended that calibration and adjustment should be carried out by Vaisala See Vaisala Service Centers on page 125 Calibration and adjustment are carried o...

Страница 110: ...LED is on 3 Press the ADJ button again to lock the adjustment mode The red indicator LED is off The adjustment menu on the display keypad is visible only when the ADJ button on the motherboard inside...

Страница 111: ...ng the linear adjustment without performing a complete readjustment for the barometer module see Figure 47 on page 109 0708 053 Figure 47 PTB330 Adjustments For correct adjustment the existing adjustm...

Страница 112: ...adjustment first disable the corresponding adjustment on each barometer module you are going to adjust see the procedure above If you are going to perform a multipoint adjustment disable also the line...

Страница 113: ...Using Serial Line LCP1 The LCP1 command performs linear correction for barometer module module P1 Use the command LCP1 to activate or deactivate the linear adjustment function to enter new linear offs...

Страница 114: ...near offset and offset gain pressure corrections The command operates like LCP1 but can take up to eight reading reference pairs If there are three pressure barometer modules installed the commands MC...

Страница 115: ...ing 1703 3 8 Reference 1700 0 Analog Output Adjustment Ch1 In the analog output calibration the analog output is forced to the following values current output 2 mA and 18 mA voltage output 10 and 90 o...

Страница 116: ...value by using the arrow buttons Press the OK button 6 Press the OK button to return to the adjustment menu 7 Press the EXIT button to close the adjustment mode and to return to the basic display Usin...

Страница 117: ...Adjustment info press the right arrow button 3 Select Date press the SET button Enter date by using the arrow buttons Press the OK button 4 Select i press the SET button Enter information text includ...

Страница 118: ...User s Guide ______________________________________________________________________ 116 _________________________________________________________________ M210855EN C...

Страница 119: ...ure range 500 1100 hPa Barometric pressure range 50 1100 hPa Table 16 Barometric Pressure range 500 1100 hPa at 20 C Class A Class B Linearity 0 05 hPa 0 10 hPa Hysteresis 0 03 hPa 0 03 hPa Repeatabil...

Страница 120: ...at room temperature Defined as 2 standard deviation limits of temperature dependence over the operating temperature range Operating Environment Table 18 Temperature Dependence Class B 500 1100 hPa 0 0...

Страница 121: ...a Class A Class B Resolution 0 01hPa 0 1 hPa Settling time at power up one sensor 4 s 3 s Response time one sensor 2 s 1 s fast measurement mode 0 2 s Acceleration sensitivity negligible Pressure conn...

Страница 122: ...emale with screw terminals D9 connector Table 24 AC Power Supply Module Operating voltage 100 240 VAC 50 60 Hz Connections Screw terminals for 0 5 2 5 mm2 wire AWG 20 14 Bushing For 8 11 mm diameter c...

Страница 123: ...mple Contact arrangement Form C Imax 0 5 A 30 VDC Safety standard for the relay component IEC60950 UL1950 Storage temperature range 55 80 C 67 176 F 3 pole screw terminal relay Max wire size 2 5 mm2 A...

Страница 124: ...c pressure head SPH10 Static pressure head SPH10 BAROMETER MOUNTING ACCESSORIES Wall Mounting Kit 214829 Installation Kit for Pole or Pipeline 215108 Outdoor installation kit weather shield 215109 DIN...

Страница 125: ...________________________ 123 Dimensions in mm 0506 035 Figure 48 Barometer Body Dimensions Technical Support For technical questions contact the Vaisala technical support If the product needs repair p...

Страница 126: ...iately after a while periodically randomly How many failed only one defect other same or similar defects several failures in one unit What was connected to the product and to which connectors Input po...

Страница 127: ...25 Vaisala Service Centers Vaisala Service Centers perform calibrations and adjustments as well as repair and spare part services see contact information below Vaisala Service Centers offer also exten...

Страница 128: ...User s Guide ______________________________________________________________________ 126 _________________________________________________________________ M210855EN C...

Страница 129: ...______ 127 APPENDIX A CALCULATION FORMULAS This appendix contains the calculation formulas used by the product Height compensated pressure values QFE QNH and HCP are calculated using the following equ...

Страница 130: ...__ 128 _________________________________________________________________ M210855EN C 0706 110 0706 111 where HQNH station elevation m g 9 81 m s2 R 287 J kg K T 288 15 K 0 0065 K m where p measured ai...

Страница 131: ...3224 3386 388 9 806650 249 0889 101325 98066 5 100000 6894 757 mmHg torr 0 7500617 0 0075006 1 25 40000 0 07355592 1 8683 760 735 559 750 0617 51 71493 inHg 0 02952999 0 00029530 0 03937008 1 0 00289...

Страница 132: ...99 999 kPa 0 1 0 0 999 999 Pa 100 0 0 999999 mmH2O 10 19716 0 0 99999 9 inH2O 0 40147 0 0 999 999 Table 30 Unit Conversion Table for Difference Pressure deltaP and Pressure Trend P3h Quantities Unit G...

Страница 133: ...0 40147 0 0 99 99 Table 32 Unit Conversion Table for Settings HHCP and HQFE Unit Gain Offset Min Max m 1 0 30 30 ft 3 28084 0 99 99 Table 33 Unit Conversion Table for Settings HQNH Unit Gain Offset Mi...

Страница 134: ...User s Guide ______________________________________________________________________ 132 _________________________________________________________________ M210855EN C...

Страница 135: ...ally output PA11A type of messages Activating the PA11A Emulation Mode To activate the emulation mode use the command SMODE PA11A on the serial line to set the start mode of the transmitter to PA11A T...

Страница 136: ...essure measurement binary with 8 characters 10000000 means OK with all three transducers included Otherwise the last three bits of the status will indicate the transducers that are included when calcu...

Страница 137: ...ee hour trend is not available yet 9891 9890 9892 10000000 9891 Pressure is 1008 4 hPa output from transducer 2 is ignored the three hour trend is not available yet 10084 10084 00000101 10084 Pressure...

Страница 138: ...User s Guide ______________________________________________________________________ 136 _________________________________________________________________ M210855EN C...

Страница 139: ...www vaisala com M210855EN...

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