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ommended to set this value at or near the expected full scale
value when manually scaling the channel.

To change the number of decimal places being displayed, high-
light the "Dec. places" menu item and use the

and

keys

to change the value. The range of decimal places is 0-3.

4.5.5 Recording

Menu

The recording menu selects the recording mode and the rate at
which data is recorded to the multimedia card (MMC). The re-
cording interval menu can be accessed directly from the main

menu by pressing the

key.

There are three recording modes: Disabled, Auto, and Manual.

Use the and keys to highlight the desired menu item.
Toggle the selection by using the

and

keys.

4.5.5.1

Recording Disabled

In the disabled mode, recording will not occur.

* RECORDING *

Mode : Disabled

←→

Toggle Menu=Exit

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Содержание P3

Страница 1: ...00109 Model P3 Strain Indicator And Recorder Instruction Manual Vishay Micro Measurements P O Box 27777 Raleigh NC 27611 USA Telephone 919 365 3800 Facsimile 919 365 3945 www vishaymg com micro measurements vishay com ...

Страница 2: ...3 DISPLAY 4 2 4 DATA CONVERSION 4 2 5 MEASUREMENT RANGE RESOLUTION 5 2 6 MEASUREMENT ACCURACY 5 2 7 GAGE FACTOR CONTROL 5 2 8 BALANCE CONTROL 5 2 9 BRIDGE EXCITATION 5 2 10 COMMUNICATION INTERFACE 5 2 11 DATA STORAGE 5 2 12 SHUNT CALIBRATION 5 2 13 ANALOG OUTPUT 6 2 14 POWER 6 2 15 OPERATIONAL ENVIRONMENT 6 2 16 CASE 6 2 17 SIZE WEIGHT 7 3 FRONT PANEL 8 3 1 USB INTERFACE 8 3 2 MEMORY CARD SLOT 9 3...

Страница 3: ... 18 4 5 MENU COMMANDS 18 4 5 1 Main Menu 18 4 5 2 Select Channels Menu 19 4 5 3 Bridge Type Menu 20 4 5 4 Gage Factor Scaling Menu 23 4 5 5 Recording Menu 27 4 5 6 Balance Mode Menu 28 4 5 7 Shunt Calibration Menu 30 4 5 8 Options Menu 31 4 5 9 Display Options Menu 32 4 5 10 Output Options Menu 33 4 5 11 Save Setup Option 34 4 5 12 Clock Options 34 4 5 13 Advanced Options Menu 35 4 5 14 Calibrate ...

Страница 4: ...2 SELECT CHANNELS 44 6 3 BRIDGE TYPE 45 6 4 K GAGE FACTOR SCALING 46 6 5 POWER 47 6 6 MENU MENU 48 6 7 RECORD 49 6 8 BALANCE 52 6 9 CALIBRATE 54 6 10 BACKLIGHT 55 6 11 LOADING SAVING SETUP INFORMATION 56 6 12 TRANSFERRING DATA 57 6 13 UPGRADING FIRMWARE 59 ...

Страница 5: ... 1 Model P3 Strain Indicator and Recorder ...

Страница 6: ...nnections and is dust and moisture resistant Operation of the Model P3 is straightforward and intuitive us ing menu driven commands and can be controlled by either the front panel keypad or remotely via a USB connection The Model P3 utilizes modern digital signal processing tech nology to provide excellent noise rejection and stability Pro prietary scaling and linearization algorithms provide unsu...

Страница 7: ...and software support for quarter half and full bridge circuits Built in precision bridge completion for 120 350 and 1000 ohm half and quarter bridges Automatic and manual zero balance and calibration Intuitive menu driven operations Full control of all functions via USB Interface Selectable analog output Portable lightweight and rugged design Battery USB or line voltage power Intuitive user friend...

Страница 8: ...0Ω 0 01 Half bridge 1000Ω 0 01 2 3 Display Type 128 x 64 pixel FSTN positive gray transflective LCD with backlight Update rate 2 updates second typ 2 4 Data Conversion A D Converter Delta sigma with integral chopper stabilized programmable gain instrumentation amplifier Resolution 24 bits Noise free resolution 18 bits typ Output rate Normal mode 50 or 60 samples sec Analog output mode 480 samples ...

Страница 9: ... Type Software Control Manual or automatic 2 9 Bridge Excitation Value 1 5 VDC nominal Control Software enable disable Measurements are fully ratiometric and not degraded by variations in excitation voltage 2 10 Communication Interface Universal serial bus USB Cable included 2 11 Data Storage Type Removable Multimedia Card 16M supplied Recording rate Software selectable from 1 reading per second t...

Страница 10: ...320 µε 3200 µε 32000 µε Update rate 480 samples sec Output Load 2000Ω Connector BNC 2 14 Power Battery Two Alkaline D cells Battery life 400 hours typ AC Adapter 6 15VDC 100mA USB 5V 100mA 2 15 Operational Environment Temperature 0 to 50 C Humidity Up to 90 RH Non condensing 2 16 Case Material Aluminum Accessories Two rubber grommets installed in the lid allow leadwires to enter the case with the ...

Страница 11: ... 7 2 17 Size Weight Size 9 x 6 x 6 in 228 x 152 x 152 mm Weight 4 4 lb 2 0 kg including batteries ...

Страница 12: ...he communication channel between the P3 and a host PC All front panel controls except the system calibration option are accessible via the USB interface USB Interface Memory Card Slot Input Terminals Keypad Power Connector Analog Output Connector LCD Display ...

Страница 13: ...and alone con figuration all functions are controlled by the keypad 3 2 Memory Card Slot The memory card slot accommodates industry standard multi media MMC cards Data can be recorded to the MMC by se lecting the appropriate recording options The multimedia card supports FAT16 or FAT12 formatted cards such as the one supplied with the unit Recorded can be either uploaded to a PC using the on board...

Страница 14: ...is a membrane switch type Functionality of the keys is described in the Operation section 3 6 Power Connector The power jack accepts a 6 to 15V DC source 0 1A max 3 7 Analog Output Connector The analog output jack provides a 0 2 5 volt output signal that corresponds to the displayed value The output range is user selectable ...

Страница 15: ...ing USB or the AC adaptor the system will always remain on as long as power is supplied If the Model P3 is using the USB or AC adapter as the power source an x is displayed on the lower right corner of the LCD display indicating the unit is running on external power If the system is running on battery power the x is re placed by a battery strength indicator If no external supply is detected the sy...

Страница 16: ...of the desired terminal insert the leadwire all the way into the terminal and carefully lower the arm to clamp the wire to the terminal Con nections can be made whether the unit is on or off 4 3 1 Quarter Bridge Connections The following configuration illustrates the connections for mak ing a three wire quarter bridge connection Select the dummy terminal D120 D350 or D1K to correspond with the nom...

Страница 17: ...s the connections for making a three wire half bridge connection 4 3 3 Full Bridges and Transducers The following figure illustrates the connections for making a full bridge connection P S D 350 S D 120 P D 1K T C 1K D 120 D P S 350 D P S EXTERNAL CAL CIRCUIT T C C T ...

Страница 18: ...sistor is to be connected In some cases the manufacturer may also supply leadwires in tegral to the transducer assembly which are used for this pur pose In any case the transducer manufacturer s recommenda tions should be followed 4 4 Operational Modes The Model P3 has two operational modes the run mode and the command mode 4 4 1 Run Mode Operation In the run mode the display is divided into four ...

Страница 19: ... OFF Note While in the pause mode recording to the MMC is also suspended To resume to normal operation press the key 4 4 1 2 Peak Read In addition the Model P3 can be used as a peak hold indicator The peak hold function is accessed by using the and arrow keys Pressing the key will update the display if a value larger than the currently displayed value is measured Ch1 µε Ch2 µε 01000 00216 Max Peak...

Страница 20: ... to the normal tracking mode press MENU 4 4 1 3 Shunt Calibration The shunt calibration switch may be toggled while in the run mode by pressing the cal key When activated a precision shunt resistor is placed between the P and the appropriate dummy Dxxx resistor additionally the Remote Cal switch closed The internal shunt calibration resistors simulate an equivalent strain of 5000 microstrain at a ...

Страница 21: ... Balance BAL Balance MENU Cancel To start the auto balance sequence press the BAL key To cancel press the MENU key 4 4 1 5 Manual Recording If the recording mode is selected as Manual recording press ing the Record key will transfer the current readings to the MMC Ch1 µε Ch2 µε 01000 00216 Ch3 µε Ch4 µε 00524 00914 MAN REC 1 CAL OFF The total number of records in the currently open file will be in...

Страница 22: ...he Main Menu see section 4 5 1 Pressing the Select Channels 3 4 1 2 key will display the select channels menu section 4 5 2 Pressing the Bridge Type key will display the Bridge Type Menu section 4 5 3 Pressing the Gage Factor Scaling K key will display the Gage Factor Scaling Menu section 4 5 4 4 5 Menu Commands 4 5 1 Main Menu The Main menu is displayed when the MENU key is pressed while in the r...

Страница 23: ... to se lect the type of bridge that is con nected to each selected channel Gage Factor Scaling 4 5 4 Displays the Gage Factor Scaling Menu Recording 4 5 5 Displays the Recording Menu Balance 4 5 6 3 Displays the Balance Menu Shunt Calibration 4 5 7 Displays the Shunt Calibration Menu Options 4 5 8 Displays the Options Menu 4 5 2 Select Channels Menu The Select Channels menu is used to activate or ...

Страница 24: ...nu Exit This menu can be directly accessed while in the run mode or the command mode by pressing the 3 4 1 2 key 4 5 3 Bridge Type Menu The Bridge Type menu selects the type of bridge connected to the selected channel The bridge type menu is accessible from the main menu or by pressing the key The bridge type determines whether the internal half bridge is used and also de termines the appropriate ...

Страница 25: ...mation on the calculations used by the Model P3 refer to the Interactive Guide for Strain Measure ment Technology available on the Vishay Micro Measurements web site at http www vishaymg com Display Bridge Diagram Description Quarter Single active gage in uniaxial tension or compression HB adj ε ε Two active gages with equal and opposite strains typical of bending beam ar rangement ...

Страница 26: ...d mini mum principal strains to measure shear strain HB adj ε ν ε Two active gages in uniaxial stress field one aligned with maximum principal strain the other with transverse Poisson strain Default Pois son s Ratio 0 3 FB 4 active Four active gages with pairs subjected to equal and opposite strains beam in bending or shaft in torsion FB shear Four active gages with pairs subjected to equal and op...

Страница 27: ...fault Poisson s Ratio 0 3 Undef FB Undefined full bridge circuit No correction for Wheatstone Bridge nonlinearity or active arms Undef HB QB Undefined half or quar ter bridge circuit No correction for Wheat stone Bridge nonlinear ity or active arms 4 5 4 Gage Factor Scaling Menu The Gage Factor Scaling Menu allows the user to scale the in put signal to display the measured data in the desired engi...

Страница 28: ...caling If the selected units are µε microstrain scaling is determined by the gage factor of the sensor GAGE FACTOR SCALING Chan 1 Units µε Gage Factor 2 000 To change the gage factor highlight the Gage Factor menu item and use the and keys to select the desired digit to modify The digit is changed by using the the and keys The default gage factor is 2 000 4 5 4 2 Millivolts per Volt Scaling If the...

Страница 29: ...er square inch Ksi Thousand pounds per square inch GPa Gigapascals MPa Megapascals Pa Pascals G Grams or G s acceleration Lbf Pounds force Lb Pounds Kg Kilograms In Inches Mm Millimeters Mil Mils 1 1000 of an inch Rpm Revolutions per minute M Meters S Seconds A Amps N Newtons V Volts Ohm Ohms Hp Horsepower Deg Degrees Rad Radians Oz Ounces mV Millivolts ...

Страница 30: ...00 Dec Places Auto To change the full scale value use the and keys to se lect the desired digit to modify The digit is changed by using the and keys The default full scale value is 1 The full scale value must be an integral value between 99999 and 99999 A full scale value of 0 is not permitted The default value is 1 The F S mV V value must be between 15 625 mV V and 15 625 mV V A value of 0 is not...

Страница 31: ...cording Menu The recording menu selects the recording mode and the rate at which data is recorded to the multimedia card MMC The re cording interval menu can be accessed directly from the main menu by pressing the key There are three recording modes Disabled Auto and Manual Use the and keys to highlight the desired menu item Toggle the selection by using the and keys 4 5 5 1 Recording Disabled In ...

Страница 32: ...cording In the Auto recording mode selected channels are recorded at the specified interval Each channel can be recorded from once per second to once per hour 3600 seconds When in the Auto record mode recording will begin when the key is pressed RECORDING Mode Auto Chan 1 1 sec Chan 2 OFF Chan 3 OFF Chan 4 OFF Toggle Menu Exit 4 5 6 Balance Mode Menu The Balance Mode menu selects the balance mode ...

Страница 33: ...en the key is pressed while in the run mode The P3 makes a series of measurements and uses the mean value as the balance value BALANCE MODE Chan 1 Mode Auto Toggle Menu Exit 4 5 6 2 Manual Balance The manual balance mode allows the user to manually adjust the balance This mode allows the user to introduce an offset in the reading To adjust the offset highlight the Adjust Menu item and use the and ...

Страница 34: ...aluate ini tial bridge offsets BALANCE MODE Chan 1 Mode Disable Toggle Menu Exit 4 5 7 Shunt Calibration Menu The Shunt Calibration menu allows the user to adjust the sensi tivity of the selected channel gage factor or full scale value while a calibration signal is applied In this menu the shunt cal switch is closed Use the and keys to select the desired channel to shunt calibrate To adjust the ca...

Страница 35: ...measurements Use the and arrow keys to highlight the desired menu item Choose the de sired item by pressing the MENU key OPTIONS MENU Display Outputs Save Setup Clock Advanced Version Exit The following options are available Menu Item Section Description Display 4 5 9 Adjusts the backlight and contrast settings Outputs 4 5 10 Controls the analog output mode Save Setup 4 5 11 Saves the current setu...

Страница 36: ...tem Change the selection by using the and keys DISPLAY OPTIONS Backlight 5 sec Contrast Toggle Menu Exit 4 5 9 1 Backlight Adjusts the duration of the backlight while in the run mode The backlight key activates the backlight Valid options are 5 sec The backlight remains illuminated for approximately 5 seconds 15 sec The backlight remains illuminated for approximately 15 seconds 60 sec The backligh...

Страница 37: ...ce Change the selection by using the and keys A bar graph indicates the amount of contrast 4 5 10 Output Options Menu The Output Options menu chooses the operational mode The possible modes are Normal Analog out 1 Analog out 2 Ana log out 3 or Analog out 4 OUTPUT OPTIONS Excitation ON Analog Out Off Rejection 60Hz Toggle Menu Exit 4 5 10 1 Excitation ON Bridge Excitation is applied during the meas...

Страница 38: ...tion from power line frequencies Choose between 50Hz and 60Hz 4 5 10 4 Out Range The analog output range can be adjusted to provide full scale output range of 32000 High 3200 Normal or 320 Low microstrain at Gage Factor of 2 000 Note that while the output range can be adjusted the resolution remains unchanged 4 5 11 Save Setup Option The Save Setup option takes the current instrument settings and ...

Страница 39: ... ADVANCED OPTIONS Calibrate System Erase MMC Poisson Ratio 0 30 Factory Defaults Exit 4 5 14 Calibrate System This option allows the user to recalibrate the Model P3 This process requires a Vishay Micro Measurements Model 1550A Strain Indicator Calibrator or another device with equivalent features and specifications ADVANCED OPTIONS Calibrate System Erase MMC Poisson Ratio 0 30 Factory Defaults Ex...

Страница 40: ...d coded within the firmware If the readings fall outside the established tolerances the system will reject the calibration Once this menu item is chosen the following screen is dis played SYSTEM CALIBRATION Install calibrator On channel 1 now CAL Calibrate MENU Exit Press the key to begin the calibration process To cancel the calibration operation press the MENU key NOTE Once the calibration proce...

Страница 41: ...s If the system determines that the values are not within a reasonable range an error screen will be displayed Zero measurement Exceeds tolerance Calibration aborted Menu Exit The system will then revert back to the previous calibration val ues If the readings are within tolerance the system initiates the next step SYSTEM CALIBRATION Set calibrator to 30000 microstrain CAL Calibrate Set the 1550A ...

Страница 42: ... the 1550A calibrator to 30000 negative polarity and press the key Finally the system needs to establish a true electrical zero amp zero SYSTEM CALIBRATION Set calibrator to S S short CAL Calibrate Short the S and S terminals on the 1550A calibrator and press the key This process will repeat on the remaining three channels Once the calibration process is complete the system will store the ...

Страница 43: ...therefore important to use a Wheatstone Bridge based calibrator Other sources such as a precision voltage ref erence are not suitable for calibration purposes 4 5 15 Erase MMC The Erase MMC option erases all files on the multimedia card ADVANCED OPTIONS Calibrate System Upgrade Firmware Erase MMC Poisson Ratio 0 30 Factory Defaults Exit Top prevent accidental erasure a confirmation screen is dis p...

Страница 44: ...upon Poisson s ratio ADVANCED OPTIONS Calibrate System Upgrade Firmware Erase MMC Poisson Ratio 0 30 Factory Defaults Exit Use the and keys to increase or decrease this value The factory default is 0 3 4 5 17 Factory Defaults This option returns the P3 to its initial factory settings The set tings can be made permanent by pressing the record key when prompted 4 5 18 Version This option displays th...

Страница 45: ...es should be changed To replace the bat teries follow these steps 1 Remove the four screws located on the bottom of the case with a Phillips head screwdriver and remove the in strument from the case 2 Remove the two screws from the battery retainer plate using a Phillips head screwdriver 3 Remove the two D cells from the retainer and replace them with two new alkaline D cells OBSERVE CORRECT POLAR...

Страница 46: ...ned to operate in a similar manner as the Model P3 To operate the software connect the USB interface on the model P3 to an open USB port on the PC using the supplied ca ble Once physically connected start the application from Win dows by navigating to the following menus Start Programs Vishay Micro Measurements Model P3 Model P3 Software Once the program loads an image of the Model P3 will be dis ...

Страница 47: ... P3 image and select Help or press the F1 key To minimize the dis play right click and select Minimize Various functions are accessible by moving the mouse over the desired button and left clicking Specific functions are described in the following sections ...

Страница 48: ...chooses which channels will be displayed and optionally recorded Select the desired channels by clicking on the appropriate channel button If the button is illuminated the channel is selected Press OK to complete the selection or Cancel to abort the op eration ...

Страница 49: ...he type of bridge configura tion and scaling is to be used Choose the bridge type from the drop down list of configurations Possible configurations are described in section 4 5 3 Press the OK button to change the settings Press Cancel to discard changes ...

Страница 50: ...ctor Scaling dialog provides a means to select the scaling and labels shown on the P3 and the screen Choose the appropriate engineering units The dialog dynami cally changes the settable properties depending on the engineer ing units selected ...

Страница 51: ... 47 6 5 Power Clicking on the Power button closes the Model P3 Application ...

Страница 52: ...button on the P3 To choose a menu item simply move the mouse pointer over the item When the item is highlighted click the left mouse button The list of menu items is the same as described in section 4 5 except for the following additional menu items available on the PC screen Load Save Settings Upload Data ...

Страница 53: ... 49 6 7 Record Clicking on the Record button chooses the desired recording options Highlight the desired recording options and click OK to begin recording ...

Страница 54: ...indow will appear displaying the val ues in numeric or graphical format To stop recording press the Stop button To save the data to a file press Save The data can be saved in the following for mats Rich text ASCII Excel HTML or XML ...

Страница 55: ... 51 If recording to the Multimedia card the following dialog is dis played Press the Rec button to begin recording Press the Stop but ton to stop recording ...

Страница 56: ...alance mode of each channel and to adjust the balance manually or automatically Choose the desired balance mode for each channel If a channel is not selected it will not be shown To auto balance one or more channels select the Auto balance option and press the Zero button ...

Страница 57: ...ess the up and down arrow buttons located above and below the corresponding slider control The arrow buttons can be used in conjunction with the Shift Alt and Ctrl keys Holding the Alt key while holding down the left mouse button over one of the arrow icons makes large changes Shift changes more slowly and Ctrl changes the most slowly ...

Страница 58: ...alibration press the CAL button Use the slider control to make coarse adjustments to the sensitivity Finer adjustments can be made by holding down the up and down arrows By holding the Shift Ctrl or Alt keys while holding the button down one can achieve more or less sensitivity in the fine adjustment ...

Страница 59: ... 55 6 10 Backlight The backlight button illuminates the simulated backlight on the PC screen and activates the backlight on the P3 ...

Страница 60: ...ormation including balance and scaling infor mation can be saved to the flash memory on the P3 or loaded and or saved to the PC by choosing Load Save setup from the Options menu When selected the following dialog appears Choose the desired option and press OK ...

Страница 61: ...rd region on the screen or by selecting Download Data from the Options menu To list the files on the MMC press the List button To Download a file select the desired file and press the Get but ton Once data is downloaded it can be saved to the PC by pressing the Save button Data can be saved in ASCII Rich Text Excel HTML or XML formats ...

Страница 62: ... 58 ...

Страница 63: ...ed Options menu When selected the following dialog appears Press Open to select the firmware to use The version of the firmware will be displayed on the dialog Press the Start button to begin the upgrade Progress will be indicated on the progress bar If the upgrade fails the system will revert to the previous ...

Страница 64: ... 60 firmware version If successful the new version of the firmware will execute the next time the system is powered up ...

Страница 65: ...result ing from personal injury Some states do not allow the exclusion or limitation of incidental or consequential damages for consumer products so the above limitations or exclusions may not apply to you The Purchaser agrees that the Purchaser is responsible for notifying any subsequent buyer of goods manufactured by Vishay Micro Measurements of the warranty provisions limitations exclusions and...

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