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WIKA Mensor CPA2501, Operating Instructions Manual

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WIKA Mensor CPA2501 Operating Instructions Manual Download Page 58

58 

Operating Instructions - CPA2501

Air Data Test Indicator

CPA2501

7.9.4 SCPI Commands Error Messages and Error Codes
All remote commands sent to the CPA2501 are shown in the Trouble Shooting App, under the “Remote” 

button. If there is a syntax error, an error message will appear below the errant command. Local errors 

and remote command errors will appear under the “Error” button. Maximum of 100 errors are stored and 

can be retrieved.
7.9.5 GPIB Capability Codes
SH1  Full source handshake capability 

AH1  Full acceptor handshake capability 

T6 

Talker with serial poll and unaddress if MLA 

L4 

Listener with unaddress if MTA 

SR1  Full service request capability 

L1 

Full remote/local capability including LLO 

PO 

No parallel poll capability 

DC1  Full device clear capability 

DT1  Full device trigger capability 

C0 

No controller capability 

E2 

Tri-state outputs

7.9.6 Interface Functions
The CPA2501 responds to the following IEEE.488.2 interface functions: 
SRQ   Service Request:  A service request is asserted whenever an error is encountered. When the bus 

controller issues a serial poll the error will be cleared. If the host IEEE board includes automatic 

serial polling capability, turn this feature off in order to view all errors.

LLO   Local Lockout:  The front panel keyboard of the CPA2501 may be locked by sending LLO or the 

command KEYLOCK ON.

GET   Group Execute Trigger:  When this message is received, the CPA2501 will save the current read-

ings until the next time it is addressed as a talker.

GTL   Go To Local:  A GTL message will cause the CPA2501 to return to local operation and unlock the 

keyboard.

DCL   Device Clear:  When this message is received, the CPA2501 will clear all errors and buffers and 

remain in the Remote mode.

SDC   Selected Device Clear:  The effect is the same as DCL.
EOI   End or Identify:  May be used as a command or query terminator in the place of, or concurrent 

with, a terminating linefeed.

Summary of Contents for Mensor CPA2501

Page 1: ...Operating Instructions Air Data Test Indicator Air Data Test Indicator CPA2501 PN 0018909001F 02 2019 CPA2501 ...

Page 2: ...nd or considerable damage mortal danger danger of injury will occur if the respective safety precautions are not taken Caution This Caution symbol indicates danger for the system and material if the respective safety precautions are not taken i Notice This Notice symbol does not indicate safety notices but information for a better understanding of the facts ...

Page 3: ... Notices 9 2 1 User Responsibilities 9 2 2 General Safety Notices 9 2 3 Warnings and Caution Notices 10 3 General Description 11 3 1 Definitions 11 3 2 Features 11 3 3 Turning On 13 3 4 Front Panel 13 3 5 Display 14 3 6 Chassis Assembly 14 4 Specifications 15 4 1 Transducer Specification 15 4 2 Measurement General Specifications 16 5 Installation 17 5 1 Unpacking the Instrument 17 5 2 Dimensions i...

Page 4: ... 2 Settings Application 28 6 4 2 1 Languages 28 6 4 2 2 Brightness 29 6 4 2 3 Volume 29 6 4 2 4 User Base Units Base Units Multiplier 30 6 4 2 5 Barometer Units 30 6 4 2 6 Instrument Mode 31 6 4 2 7 Configuration 31 6 4 3 Frames Application 32 6 4 3 1 Frame Format 32 6 4 3 2 Frames Channel 33 6 4 4 Transducer Application 34 6 4 4 1 Transducer Channel Selection 34 6 4 4 2 Qc or Pt Emulation 35 6 4 ...

Page 5: ...Queries 56 7 9 4 SCPI Commands Error Messages and Error Codes 58 7 9 5 GPIB Capability Codes 58 7 9 6 Interface Functions 58 8 Options 59 8 1 Barometric Reference 59 8 1 1 Gauge Pressure Emulation 59 8 1 2 Absolute Pressure Emulation 59 8 1 3 Emulation Mode Accuracy 59 8 1 4 Barometric Reference Calibration 59 8 1 5 Barometric Reference Specifications 60 8 2 External Transducers CPT6100 and CPT618...

Page 6: ...sor or WIKA worldwide 65 10 2 Environment 65 10 3 Pressure Standards 65 10 4 Media 65 10 5 Setup 66 10 6 Calibration Data 67 10 7 One Point Cal Application 67 10 8 Two Point Cal Application 68 10 9 Linearization 69 10 10 Head Pressure 71 11 Appendix 72 11 1 Measurement Units 72 11 2 Conversion Factors PSI 73 11 3 Conversion Factors Millitorr 74 11 4 Conversion Factors Pascal 75 ...

Page 7: ...be liable for errors contained herein or for incidental or con sequential damages in connection with the furnishing performance or use of this material 1 2 Important Notice The product specifications and other information contained in this manual are subject to change without notice Mensor has made a concerted effort to provide complete and current information for the proper use of the equipment I...

Page 8: ...or in connection with the delivery use or performance of the software program 1 6 Mensor Service Plus If you have problems and you don t find the answer in this manual contact Mensor at 1 800 984 4200 USA only or 1 512 396 4200 for personal assistance or at any of the contact addresses listed on the rear cover of this manual We are ready to help 1 6 1 After the Warranty Mensor s concern with the p...

Page 9: ... this manual and the operation of the instrument Warning WARNING A condition for trouble free and safe operation of this system is proper transport proper storage installation assembly and proper use as well as careful operation and maintenance Any operation not described in the following instructions should be prohibited The system must be handled with care required for an electronic precision in...

Page 10: ...he maximum pressure which will be applied otherwise physical injury to the operator or bystanders is possible Caution CAUTION USE THE PROPER PRESSURE MEDIUM Use only clean dry non corro sive gases unless otherwise specified by Mensor This instrument is not designed for oxygen use Caution CAUTION As with most sensitive electronic equipment switch the power switch off before connecting or disconnect...

Page 11: ...body Ps is pressure that would have existed in the aircraft s location if the aircraft had created no pressure disturbances the atmospheric pressure Ps is proportional to altitude The relationship between Ps and Altitude is non linear Total Pressure Pt The sum of the local atmospheric pressure plus impact pressure created by the aircraft moving through the atmosphere Impact Pressure Qc The pressur...

Page 12: ...ges change the language for on screen text and number date formats by simply touching one of the national flag icons available in the setup screen Desk top or rack mount Local Operation or command and read remotely An optional removable internal high accuracy barometric reference transducer Optional external transducer Model CPT6100 or CPT6180 ...

Page 13: ...wn below Power Switch ON OFF To see information about the configuration of your new CPA2501 touch the Information Application App icon see below on the menu and a window will appear listing the Mensor customer service contact model number and the transducers that are installed Press the Measure App to return to the main screen Information Application 3 4 Front Panel The CPA2501 front panel include...

Page 14: ...en Text or icons that are displayed but do not respond to being touched are called labels or windows Operators will quickly become accustomed to the particular characteristics of the frequently used buttons Main Screen The main screen or Measure Application appears after power up This screen contains the channel frames and settings button It will remain as configured after a power cycle Transducer...

Page 15: ... reference range 17 to 34 575 to 1151 in HgA 0o C mbar Accuracy 1 0 01 R Calibration Interval 365 days Media Compatibility Metals in contact with media 6000 7000 series Aluminum 316 SS brass Non metals in contact with media PTFE Teflon Urethane Silicone RTV Silicone grease PVC Epoxy Buna N fluoroelastomers Viton Transducer Reading rate 33 readings second Calibration adjustments Internal zero adder...

Page 16: ...ers Off Low Normal default High Connections Number of integrated transducer selectable Standard 1 reference transducer Optional 2nd reference transducers external transducer internal barometric reference Pressure connections Ranges 6015 psi 7 16 20 female SAE MS adapters provided Pressure adaptors Standard 1 8 in FNPT Optional 1 4 inch tube 6 mm tube 1 4 in FNPT 1 8 in FBSP Overpressure limits 110...

Page 17: ...inspected for appearance prior to leaving the factory Upon receipt please examine the instrument for shipping damage Report any apparent damage to the carrier immediately In addition to this manual you should have CPA2501 Air Data Test Indicator Power Supply Fitting adapters ordered Any accessories ordered An envelope containing the calibration certificate ...

Page 18: ...imensions inches Front view Single mount Front view Side view Dual mount Front view 19 rack mount Desk top case Rear Panel IEEE 488 Baro ref port baro ref option Remote Transducer connection RS 232 USB device USB host Ethernet port Power Ps Port Qc or Pt Port Qc Reference ...

Page 19: ... left side is a remote transducer connection the RS 232 Ethernet IEEE 488 USB de vice connections for communication the USB host connection and the 12 VDC power input Figure 5 4 Rear Panel 5 4 1 Pressure Connections i Notice When making up a connection to an o ring adapter fitting port use a back up wrench to prevent over stressing the threads in the manifold block The pressure ports on the rear o...

Page 20: ...ctions and commands for operation over IEEE 488 Ether net USB or RS 232 ports 5 6 Power Up Apply power to the power connector on the rear of the instrument using the power adaptor included and switch the power switch on the front of the unit ON The instrument will go through an initialization pro cess and system check As soon as the system check is completed the system will default to a screen sim...

Page 21: ...hese parameters a set of selections related to that parameter will appear on the right or a data entry keypad The desired selection or data can be entered here 6 1 2 Display Screen Features The screen shown below provides a brief description of the features of a Ps Qc display after initializa tion The left two thirds of the display contains the area where information is displayed in this case the ...

Page 22: ... Language Selection Pressing the settings application button will open a screen where the language display brightness volume user base units multiplier and configuration loading saving can be changed The current language selections available are shown in the table below Additional language choices will appear on the screen after pushing the Page Down button Language Country English USA German Germ...

Page 23: ...ch App is chosen related application parameters will appear on the left two thirds of the screen along with the name of the application and a reduced size icon in the top title section When a parameter is chosen related selec tions sliding scales or a data entry key pad will appear in the input area on the right where the application selection buttons were previously displayed An example of each t...

Page 24: ...button is always present in each channel When the units button is pressed on the Ps channel a selection of feet or meters plus a button for the selection of imperial and metric units will be displayed on the right figure 6 4 1 B notice that the Units button has a lighter background when the selection menu is active When the units button is pressed on the Qc Channel a selection of Knots MPH Km hr a...

Page 25: ...tive absolute transducer can emulate gauge pressure Emulation can be activated simply by pressing the Mode button Figure 6 4 1 1 Mode Label 6 4 1 2 Auxiliary Displays The screen in figure 6 4 1 2 shows all of the possible auxiliary display items that can be included in the Measure App In addition each channel can contain one of two possible calibration functions The aux iliary display item include...

Page 26: ... pressure from an appropri ate standard for a single point calibration If the channel is in Qc Mode measuring gauge pressure or in gauge emulation mode pressing the button will calculate an offset and set the current reading to zero For all of these gauge modes the offset value will not be saved to the transducer but will only be active temporarily After exiting the emulation mode or after a power...

Page 27: ...tare pressure so that the indicator displays zero Subsequent deviations in pressure will be relative to the tare pressure Notice in the figure below that when active the back ground of the tare button is lighter than the channel background when not active the button back ground is darker than the channel background Figure 6 4 1 4 Tare Button Pressing the tare button again will deactivate the tare ...

Page 28: ...nput screen will appear on the right where selections can be made The Settings App provides a place to change the language display brightness volume user units and barometer units and instrument mode Configuration settings of the unit can also be saved within this ap plication plus the default configuration can be activated Figure 6 4 2 Settings application 6 4 2 1Languages The Language parameter ...

Page 29: ...liding your finger along the bar graph or touching anywhere in the bar graph will change the brightness of the screen After the setting is made and your finger is removed from the screen the menu will revert back to the basic settings menu Figure 6 4 2 2 Brightness 6 4 2 3Volume The Volume setting provides a way to turn on or off the touch screen audio feedback Figure 6 4 2 3 Volume ...

Page 30: ... chosen as the User 1 base unit and the User 1 multiplier in this case would be 0 068045 When set this way and the user 1 unit has been chosen the user 1 unit will now display the pressure in atm Figure 6 4 2 4 User base units Base units multiplier 6 4 2 5Barometer Units When the Barometer Units Parameter has been chosen a list of Imperial or Metric units is presented on the right side of the scre...

Page 31: ...Figure 6 4 2 6 Instrument Mode 6 4 2 7Configuration Configuration is the last parameter in the Settings App It allows the operator to save instrument settings and load them as needed in the future Parameters that are set in all the Apps can be saved using the Configuration Save button and recalled using the Configuration Load button Simply set all desired pa rameters then go to Settings Configurat...

Page 32: ...ls displayed can be defined in the Frames Application In addition the optional barometric reference transducer and or a remote transducer can be displayed as a channel Figure 6 4 3 shows the unit in dual frame format with the Frame Format set to display the read ings from two transducers In this case Ps and Qc Figure 6 4 3 Frames Application 6 4 3 1Frame Format The Frame format button sets the dis...

Page 33: ...he optional barometer could be placed in any available position If the Single or Triple frame format is chosen then the channels will appear as shown in each of the respective frame position sets Frame positions sets Single Frame Dual Frame Triple Frame Resulting view in the Measure Application Figure 6 4 3 2 Frames Channel In Figure 6 4 3 2 A the Channels have been set for each frame format and t...

Page 34: ...addition the auxiliary display functions and calibration function can be specified here Figure 6 4 4 Transducer Application 6 4 4 1Transducer Channel Selection Transducer parameters are identical for all channels but can be set differently in each channel Figure 6 4 4 1 shows two displays where channel Ps and Qc have been selected Notice that the Qc Transducer has Peak Rate and Units selected as A...

Page 35: ...Qc channels listed in the top two positions and the Pt listed last This indicated that the native transducer in this device is a Ps Qc transducer and the Pt channel is emulated Figure 6 4 4 2 Transducer Delta Emulation 6 4 4 3 Transducer Filter The Filter is an electronic filter to smooth out the readings Because of differences in resolution greater filtering may display a more stable reading for ...

Page 36: ...est Indicator CPA2501 6 4 4 4Transducer Resolution The Resolution of each transducer Channel can be set in the Transducer Application using the resolution Parameter The resolution can be set to 4 5 or 6 digits Figure 6 4 4 4 Transducer Resolution ...

Page 37: ...g Auxiliary Dis play 1 2 or 3 and selecting from None Peak Rate or Units Figure 6 4 4 5 A shows auxiliary display 1 2 and 3 set for units peak and rate respectively Auxiliary displays will appear in the Measure App as seen in Figure 6 4 4 5 B Figure 6 4 4 5 A Transducer channel aux displays set to Units Peak and Rate Figure 6 4 4 5 B Auxiliary displays as seen in the Measure App ...

Page 38: ...osing Zero will enable the Zero Cal Button in the Measure App Choosing Tare will enable the Tare Button in the Measure App The Tare button and the Zero Button cannot appear on the screen at the same time in the same channel See section 6 4 1 3 and 6 4 1 4 for operation of the Zero and Tare buttons in the Measure App main screen Figure 6 4 4 6 Cal Function ...

Page 39: ...4 5 the IP address Netmask and Gateway are greyed out and locked these are controlled by the DHCP server Details about the Remote Operation command sets cable requirements etc can be found in Section 7 Remote Operation IEEE 488 Ethernet Serial RS 232 or USB Figure 6 4 5 Remote Application 6 4 5 1Remote Command Set The remote command set parameter provides a choice of the Mensor command set or the ...

Page 40: ... that require a numeric address for example an IP address will also present a keypad Address entries should conform to the format of the parameter selected The three screens below show examples of each type Figure 6 4 5 2 Remote Communication Settings Numeric entry Numeric address entry Radio button selection i Setting the Ethernet DHCP to yes will have a short delay while the DHCP server is conta...

Page 41: ... 4 6 Info Application The Info application displays information about the instrument including Mensor address and email Model number serial number and operating software version Transducer model number serial number range software version Figure 6 4 6 Info Application ...

Page 42: ...evel the leak test is initiated by pressing the Start button If the change in pressure exceeds the Delta parameter before the allotted time in the Time parameter then the Leak Test App will return a red status indication showing the actual difference delta in pressure recorded during time period set in the leak test indicating a failed test Otherwise it will return a green status indication showin...

Page 43: ...at have occurred in the instrument due to a communication or network error Push the Remote button to show commands and responses that have been sent over the remote communication connection If there are any errors in the error queue an error symbol will appear in all screens Figure 6 4 8 A of the instrument Pressing this error button from any screen will open the Troubleshoot application where the...

Page 44: ...ssword for entering this area can be changed Figure 6 4 9 A Service Application locked Press the Enter button to show the numeric keypad to enter a password This will unlock other applica tions Default password is 123456 Enter 123456 and press the check mark to unlock the Service Application Figure 6 4 9 B Service Application Enter Password i Note The default Password is 123456 After entering this...

Page 45: ... Password can be changed by pressing the Enter button next to the Change Password label This will open a keypad where a new password can be entered and ac cepted by pressing the Check Mark i Note Please make note of a password change and save the new password in a secure location The Unlocked Service Application is the access point to all calibration screens described in Section 10 of this manual ...

Page 46: ...Mensor default SCPI WIKA The SCPI WIKA mode emulates the WIKA command set in SCPI format 7 2 IEEE 488 IEEE 488 address button Allows the user to set the GPIB address by inputting a numeric value utilizing the touch screen 7 2 1 IEEE 488 2 Commands Command or Query Response Function IDN Returns identification string RST Reset to known state default psi TST Returns 1 OPC Operation completed WAI Retu...

Page 47: ...in Section 6 4 5 Caution CAUTION Please contact your network administrator for proper settings Caution CAUTION Please consult your computer resources department prior to connect ing this instrument to your network to verify there are no conflicts with existing IP addresses The Ethernet communication port allows the CPA2501 to communicate with computers using 10 100 Based T specifications Before us...

Page 48: ...diately echo back characters sent over the serial port The Serial function allows the user to set the RS 232 serial port settings by selecting from the choices provided Baud 9600 19200 38400 57600 115200 Data Bits 7 8 Stop Bits 1 2 Parity Even Odd None Echo settings On Off 7 4 1 Serial Cable Requirements RS 232 communications are transmitted over a three conductor shielded cable terminated in a st...

Page 49: ...ue form In the case of multiple data fields commas are required to separate the fields Queries do not have a data field String text or value numeric data are acceptable in any of the following formats Examples of string data ON OFF mBar inHg Examples of value data 1 1 0 5 678 25 68324e 5 7 7 Command Set Definitions In this manual a data entry made up of alpha characters is defined as a string as o...

Page 50: ...2501 Commands and Queries Command Data Response Function See Table Below Returns a reading in the current output format Sec 7 8 A sp n nnnnne nn cr lf Returns the A channel pressure read ing AR sp n nnnnne nn cr lf Returns the A channel rate Acquire 15 char string Ex Acquire Test_stand_1 Returns sp YES or NO CCC CCC cr lf This command is used when multiple computers would like to control the instr...

Page 51: ...e active channel Cmdset Mensor SCPI Activates remote command set for instrument emulation modes Cmdset sp CCCCC cr lf Returns active command set identifier D sp n nnnnne nn cr lf Returns the D channel pressure read ing DR sp n nnnnne nn cr lf Returns the D channel rate Decpt sp n cr lf Returns the number of decimal points see Resolution Default None Sets the default values DHCP ON or OFF Reserved ...

Page 52: ... the displayed language String to be sent may be ENGLISH ENG LISH GB ENGLISH CA GERMAN FRENCH FRENCH CH FRENCH CA SPANISH SPANISH LA ITALIAN POLISH PORTUGUESE PORTU GUESE BR RUSSIAN JAPANESE CHINESE KOREAN LANGUAGE sp XXXX cr lf Returns the displayed language List sp PRI 1 cr lf Legacy query Listcal sp PRI sn 1 mmddyy cr lf Returns the calibration date of the ac tive transducer Listrange sp PRI 1 ...

Page 53: ...ee Resolution Release 15 char string Ex Release Test stand 1 Returns sp YES or NO CCC CCC cr lf This command is used to release control of the instrument in a multiple computer environment Yes if release is successful No if instrument is being controlled with another computer CCC name of controlling com puter or AVAILABLE See Acquire and Unlock Resolution n Sets the number of significant digits se...

Page 54: ...urns the instrument auxiliary dis play units in a text string Tare ON OFF Tares the reading to zero Tare sp n nnnnnE nn cr lf Returns value of Tare Transfer_factory_to_lin earity Copy factory linearity coefficients to customer Units units code or text in table below Sets the instrument engineering units Units sp CCCC cr lf Returns the instrument units in a text string Unlock None Releases Acquire ...

Page 55: ...tric 15 millibars MBAR Metric 16 millimeters of water 4 C MMH2O Metric 17 centimeters of water 4 C CMH2O Metric 18 meters of water 4 C MH2O Metric 19 millimeters of mercury 0 C MMHG Metric 20 centimeters of mercury 0 C CMHG Metric 21 torr TORR Metric 22 kilopascals KPA Metric 23 pascals PA Metric 24 dynes per square centimeter DY CM2 Metric 25 grams per square centimeter G CM2 Metric 26 kilograms ...

Page 56: ...ure C Returns the pressure from Channel C TEMPerature C Returns the temperature from Channel C RATE C Returns the rate sec from Channel C BAROmetric Returns the barometric pressure CALibration PRESsure C MODE Returns 1 calibrated or 0 not calibrated DATE Returns date of cal MM DD YY DATE i i i Sets date of cal YYYY MM DD ZERO Returns zero offset ZERO n Sets the zero offset ZERO INITiate Ignored SE...

Page 57: ...tate PRESet Load known state values SAVe No function not needed VERSion Returns SCPI version 1994 0 TEST ELECtronic Returns OK UNIT PRESsure bar mbar Pa psi Sets the pressure units PRESsure Returns the pressure units NAME n Returns the units string for units code n FACTor n Returns the units conversion for units code n INDEX n Sets the index number INDEX Returns the index number index unit 0 bar 1...

Page 58: ...puts 7 9 6 Interface Functions The CPA2501 responds to the following IEEE 488 2 interface functions SRQ Service Request A service request is asserted whenever an error is encountered When the bus controller issues a serial poll the error will be cleared If the host IEEE board includes automatic serial polling capability turn this feature off in order to view all errors LLO Local Lockout The front ...

Page 59: ... ground color is an indication that the channel is in emulation mode In the gauge emulation mode the atmospheric pressure reading from the barometric reference transduc er is subtracted from the absolute pressure reading of the channel to emulate a gauge pressure The barometric reference transducer has six significant digits If a very low pressure gauge transducer is active and is used in absolute...

Page 60: ...ducer Connection Cable A shielded ribbon cable is required to connect an external transducer and can be supplied with or without an external Transducer The part number is 4060090001 8 3 Rack Mount Kit The CPA2501 can be supplied with a single or dual 19 rack mount kit Dual Rack Mount Single Rack Mount 8 4 Fittings A variety of fittings are available at the time of order on transducers with a max r...

Page 61: ...ducers The cable power supply used to calibrate the internal transducer package remotely can be ordered as an option PN 0018990001 Calibration of the internal transducer package can be performed remotely using the cable a PC and software provided Figure 8 5 1 Remote Calibration Kit for Internal Transducer Package ...

Page 62: ...ibration Sled A Calibration Sled Kit is available to provide a way to calibrate the barometric reference remotely PN 0018752001 Calibration of the Barometric Reference can be performed remotely using the Cal sled a PC and the software provided Figure 8 5 2 CPA2501 Barometric Reference Cal Sled Kit ...

Page 63: ...move the top panel This will reveal the transducer The transducer can be removed by unplugging the ribbon cables from the transducer loosening the thumb screw and lifting the transducer out of the chassis Figure 8 5 3 1 Transducer Removal 8 5 3 2Barometric Reference Removal To remove the optional Barometric reference first remove three screws holding the top panel of the chassis then remove the to...

Page 64: ...xtensive knowledge of the instrument assures you that it will receive expert care In many cases we can economically upgrade an older instrument to the latest improvements Servicing our own instruments which are used in real world applications keeps us informed as to the most frequent services required We use this knowledge in our continuing effort to design better and more robust instruments 9 2 S...

Page 65: ... www mensor com tel 1 512 396 4200 1 800 984 4200 fax 1 512 396 1820 email tech support mensor com WIKA Alexander Wiegand SE Co KG website www wika de www wika com tel 49 9372 132 0 fax 49 9372 132 406 email CTServiceTeam wika com Service Center China WIKA China website www wika cn contact Baggio Li tel 86 512 6878 8000 fax 86 512 6809 2321 email baggio li wika com 10 2 Environment For maximum acc...

Page 66: ...rd is normally a deadweight test instrument and the Volume Controller refers to a hand operated variable volume pressure vernier device A diaphragm type vacuum gauge is recom mended over the gauge tube type of vacuum transducer for calibrating sub atmospheric pressures A vacuum pump with the capacity to generate 600 mTorr absolute is recommended Figure 10 5 Calibration Setup Ps must see the same p...

Page 67: ...int calibration usually a zero point calibration of each transducer installed can be accomplished in One Point Cal Application The transducer channel is chosen by pressing the Channel button at the top of this screen and then selecting from the list of installed transducer channels For gauge pressure simply expose the reference and the pressure port of the transducer to atmospheric pressure and th...

Page 68: ...an generate and measure a pressure value In either case the pressure should be measured at a stable value that is between 600 mTorr absolute and 20 of the range of the selected internal transducer 4 When the pressure is stable record the live reading shown on the Two Point Cal screen and enter this value as the Low Reading by pressing the Low Reading button and entering the number followed by the ...

Page 69: ...e pressure standard and the corresponding reading from the instrument s transducer can be recorded and transcribed into the Linearization Matrix shown in Figure 10 9 A Linearization of each transducer can be performed from this screen by selecting each transducer channel using the channel button in the top left hand corner Figure 10 9 A Linearization Application Data Matrix The Linearization Appli...

Page 70: ...ated from the data entered in the Linearization Matrix It is a good indication of the overall error of the transducer and will quickly reveal any gross data entry errors that have been made To revert back to the Lineariza tion Matrix press the Matrix Icon Relative Scale Figure 10 9 C Linearization Error Graph When satisfied that all values have been entered correctly press the adjust button and th...

Page 71: ...t or linearization calibration application will force the instrument into its native pressure mode After calibration is complete you may need to select the instrument mode you desire See section 6 4 2 6 page 31 te of calibration Restoration to factory calibration can also be completed in this application ...

Page 72: ...ssure at an external source that is at a different elevation from the CPA2501 transducer sensing that pressure The four parameters are used to calculate the pressure that is a result of the different elevations It should not be used when calibrating CPA2501 transducers The Head height should be set at zero before calibrating the transducers of the CPA2501 i Notice The Head Pressure should not be a...

Page 73: ...5 millibars mBar 16 millimeters of water 4 C mmH2O 4 C 17 centimeters of water 4 C cmH2O 4 C 18 meters of water 4 C MH2O 4 C 19 millimeters of mercury 0 C mmHg 0 C 20 centimeters of mercury 0 C cmHg 0 C 21 torr Torr 22 kilopascals kPa 23 pascals PA 24 dyne per square centimeter Dy cm2 25 grams per square centimeter gm cm2 26 kilograms per square centimeter kg cm2 27 meters of seawater 0 C 3 5 sali...

Page 74: ...1715 08 0 00001933672 11 inSW 0 C 3 5 salinity 26 92334 0 03714250 12 ftSW 0 C 3 5 salinity 2 243611 0 445710 13 ATM 0 06804596 14 69595 14 bar 0 06894757 14 50377 15 mbar 68 94757 0 01450377 16 mmH2O 4 C 703 0890 0 001422295 17 cmH2O 4 C 70 30890 0 01422295 18 mH2O 4 C 0 7030890 1 422295 19 mmHg 0 C 51 71508 0 01933672 20 cmHg 0 C 5 171508 0 1933672 21 Torr 51 71508 0 01933672 22 kPa 6 894757 0 1...

Page 75: ... 0 0005206091 1920 827359 12 ftsw 0 C 3 5 salinity 0 00004338408 23049 92831 13 atm 0 000001315786 760002 2299 14 bar 0 000001333220 750063 6259 15 mbar 0 001333220 750 0636259 16 mmH2O 4 C 0 0135954 73 5540997 17 cmH2O 4 C 0 001359544 735 5409971 18 mH2O 4 C 0 00001359544 73554 09971 19 mmHg 0 C 0 001 1000 000000 20 cmHg 0 C 0 0001 10000 00000 21 Torr 0 001 1000 000000 22 kPa 0 0001333220 7500 63...

Page 76: ...5E 02 12 ftSW 0 C 3 5 sal 3 254082E 04 3 073062E 03 13 atm 9 869230E 06 1 013250E 05 14 bar 1 00000E 05 1 00000E 05 15 mbar 1 00000E 02 1 00000E 02 16 mmH2O 4 C 1 019744E 01 9 806378E 00 17 cmH2O 4 C 1 019744E 02 9 806378E 01 18 mH2O 4 C 1 019744E 04 9 806378E 03 19 mmHg 0 C 7 500636E 03 1 333220E 02 20 cmHg 0 C 7 500636E 04 1 333220E 03 21 Torr 7 500636E 03 1 333220E 02 22 kPa 1 00000E 03 1 00000...

Page 77: ...Operating Instructions CPA2501 77 Air Data Test Indicator CPA2501 ...

Page 78: ... 201 Barnes Drive San Marcos Texas 78666 Tel 512 396 4200 Fax 512 396 1820 sales mensor com www mensor com WIKA Alexander Wiegand SE Co KG Alexander Wiegand Straße 30 63911 Klingenberg Germany Tel 49 9372 132 5015 Fax 49 9372 132 8767 CTSales wika de www wika de ...

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