PSD Manual
Contents
1. Ea El Bab use sc EH aPeLY Lo HR asr Lo HEA 0000000 Pa apeLY HI HEA disp Hi HEA 0000000 HH done BA El y APPLY LOBA disp Lo bE 0000000 HEA gt aise Hi HEH 0000000 RYH done HY tAbLE PRP inPutLo HB 0000000 HH disP Lo HEA 0000000 AH inPut Hi HEA 0000000 HEA aisP Hi HEA 0000000 HEA done HE CAL VAL set 9Ain HEA 0000000 HEH SEt OFFS HJ 0000000 HEA done HEA EnAbLEd Note Only when TEDS is disabled Mantracourt Electronics Limited PSD User Manual Millivolt per Volt Calibration Menu Structure To access the millivolt CALIBRATION MENU Press and hold Vv ES and for 10 seconds 9 Mantracourt Electronics Limited PSD User Manual Configuration Menu To enter the CONFIGURATION MENU press and hold Parameter EN and buttons for 3 seconds GROSS NET Set up Information Press To skip to next menu item Press To set a new system zero This allows the user to introduce a fixed offset to the display value The GROSS and NET values are then displayed with this offset taken into account Values between 9999999 and 9999999 can be entered using the KI and O arrows to select a digit and the a and v arrows to increment or decrement the digits Press to accept the value and move onto the next2. 2 label options available for the PSD PSD Strain Gauge or Load Cell Hand Held Display TEDS enabled pa iy User Manual www mantracourt co uk THE QUEEN S AWARDS FOR ENTERPRISE M mantracourt BASTE CONCEDA A A AA A is cbs 2 HOW AE WOLKS id A a a 2 ANA a aia 3 INTTOUCA ON as a A A boca A RA 4 User Opera rta A di 4 Electrical Connection Information oooococonoccconnccnnccnncconanonoronn ee nee eneeeneeenaseeeeeeeseenseeeeeeeaeenaeens 5 Sensor CONNECTIONS iii a onl uote it o ii 5 RSZ32 Port CONTectiONs ci AA AA A OREST ARNEE EES 5 Internal Connections ii AA A A dd ii 5 MENU STTUCUTO a A AA A AA AA AAA AA ie 7 millivolt per Volt Calibration Menu Structure oooococccconcconcconcconcconnconnconnconncnnn crono conc nonncconannanos 9 Configuration Meli A A A AAA A dacs eeueelve ene 10 Calibration Men a A A A ria 12 Millivolt per Volt Calibration Menu ccceccesccenccene cence eeeeeeneeeneeeneeenseenseeeeeeeaeeenseeneeenseeseeees 14 Operation Features 206i seecteess es de otia EaR EE EEEE A ESE REENE VEE AEE E 15 Normal Display Operations se sererai nero ee e tanta E E eed ea aS 15 Switching the PSD ONVO ft di a ais 15 RANGE BUTTON ss cocemrs cosacos imac cdas EA EN a ed AAA AAA 15 HOLD Butt uti a tad dia 16 GROSS NET BUTTON ws wae scde cack ts AT A AO A idas aa 16 SHUNT CAL BUTON vo covoorisnca id A TRES AAA AA 16 PEAK BULLON Si A A EEEE TORE 16 TFROUGHIBUCCOMN sr A A E AE 16 Configuration Menu Parame
3. RANGE Button The range feature allows for the setting of two totally independent setup ranges to be selected if required To switch between ranges simply press the range button If TEDS has been enabled then only 1 range is permissible When you enter either the calibration menu or configuration menu the parameters you will be setting are those for the range you have selected An annunciator is lit to identify which range has been selected The PSD is supplied with engineering unit legends these can be slid into a window located on the inside of the front panel These labels then help to further identify the units being displayed for each range Please refer to the photo below Legend labels are inserted both sides i Ys f Al v a g Ta i ape see 15 Mantracourt Electronics Limited PSD User Manual HOLD Button The hold button allows the user to freeze the display when it is pressed When pressed again the display returns to it s normal operating mode When in hold mode the display will flash and the hold annunciator will be lit to ensure that this feature is not accidentally turned on without the user noticing The hold feature can not be used when the PSD is in either peak or trough hold mode GROSS NET Button The gross net button when pressed toggles between the gross and net display values This enables the user to zero the display by putting the PSD into net mode and displaying
4. Temperature 10 C to 50 C Environmental Rating IP65 when mating plug fitted Enclosure Type ABS dark grey Leather Carry Case Optional European EMC Directive 2004 108 EC BS EN 61326 1 2006 BS EN 61326 2 3 2006 Mechanical Dimensions The Case is Registered Design No 3021311 152 23 Mantracourt Electronics Limited PSD User Manual Warranty The PSD is warranted against defective material and workmanship for a period of 1 one year from the date of dispatch If the MANTRACOURT ELECTRONICS LTD product you purchase appears to have a defect in material or workmanship or fails during normal use within the period please contact your Distributor who will assist you in resolving the problem If it is necessary to return the product to NANTRACOURT ELECTRONICS LTD please include a note stating name company address phone number and a detailed description of the problem Also please indicate if it is a warranty repair The sender is responsible for shipping charges freight insurance and proper packaging to prevent breakage in transit MANTRACOURT ELECTRONICS LTD warranty does not apply to defects resulting from action of the buyer such as mishandling improper interfacing operation outside of design limits improper repair or unauthorised modification No other warranties are expressed or implied MANTRACOURT ELECTRONICS LTD specifically disclaims any implied warranties of merch
5. and v arrows to increment or decrement the digits Press to accept the value CALibrA Parameter disabled when TEDS is enabled This parameter is used to calibrate and scale the PSD with a sensor There are two basic methods of calibration available These are LiVE and AbLE There is also a third parameter which can be used for maintenance and recording purposes This parameter is CAL VAL The CAL VAL value can be viewed after a calibration has been completed and will show the offset and gain figures from any stored calibration If these figures are noted they can be used to re enter at a later date if calibration data is lost for any reason or if the calibration data from a sensor needs to be transferred to another PSD tedS Parameter This parameter automatically calibrates the PSD with the data from the TEDS chip The two annunciators appear when active connection with a TEDS peripheral has been made When there is a loss of connection these annunciators flash When changing a sensor the PSD should be power cycled as this is when the TEDS data is read Calibration Procedures are not available when TEDS is enabled 19 Mantracourt Electronics Limited PSD User Manual TEDS limitations specifications ERROR 1 Must be DS2431 or DS2433 Device ERROR2 amp 3 Must use template 33 Template 33 restrictions ERROR 6 min physical value gt 9999999 0 max physical value gt 9999999 0 ERROR 4 value precision case 1 or 2 ERROR 7
6. min electrical value gt 5 0mV V max electrical value lt 5 0 mV V ERROR 5 bridge type FULL 2 ERROR 8 excitation min gt 5 0 excitation max lt 5 0 Calibration Procedures The best method of calibration if it is possible to do so is the LiVE calibration as this reads in the sensor signal at two calibration points and scales the PSD automatically If this is not possible then the sensitivity figure in mV V from the sensor calibration certificate can be used to scale the PSD by using the tAbLE calibration This may be the only option available if you are unable to apply a known stimulus to the sensor which quite often is the case LiVE Calibration Procedure When is displayed press will now be displayed press You will be prompted USE SC this can be selected if you wish to use the shunt calibration figure from a sensor calibration certificate care should be taken that the shunt calibration resistor used originally with the sensor is the same as is fitted in the PSD If you wish to use this press otherwise press You will then be prompted APPLY LO At this point ensure that the low calibration stimulus is applied to the sensor and allow to settle of approx 3 seconds then press You then be prompted with dISP LO Press to enter the display value required with the low stimulus applied to the sensor The value can be entered by using the KI and O button to select a digit and the a and M buttons to change the digit When
7. more detailed calibration information please refer to the calibration section of the manual Mantracourt Electronics Limited PSD User Manual 12 ENABLING TEDS DISABLES CALIBRATE MENU Press El to skip this parameter and exit menu Press to enable or disable TEDS If you have chosen to enter the TEDS calibration EnAbLEd appears If you have chosen to enter the TEDS you will be prompted whether you want to select if you do not press fia otherwise press PA If you have selected enabled two flashing indicators will appear For more detailed TEDS calibration information please refer to the TEDS section of the manual 13 Mantracourt Electronics Limited PSD User Manual Millivolt per Volt Calibration Menu To enter the MilliVolt per Volt Calibration Menu press and hold ES PEAK and buttons for 10 seconds Parameter Set up Information Press Ea To skip to next menu item Press To change the 5mV V gain Here the factory gain calibration can be changed to a measured value see Milli Volt Calibration Procedure back end of manual Once the derived value has been entered Press to confirm Press El to skip to next menu item Press to change the 5mV V offset Here the factory offset value can be changed to a measured value see Milli Volt Calibration Procedure back end of manual Once the derived value has been entered Press to confirm THIS CAN ONLY BE SET WHEN USING 50m
8. signal levels If however a higher sensitivity sensor is used with the PSD it will be necessary to gain access to the internal PCB you must turn the PSD off to move link LK1 to JP1 see picture below to allow the PSD to accept sensitivities of up to 50mV V TEDS should only be used with 5mV V as 50mV V is not factory calibrated Once this link has been moved you will need to go back into the CALIBRATION MENU When re entering the menu you will notice that the parameter SEnS 5 0 has changed to SEnS 50 0 to change the sensitivity to 50mV V press Pa the PSD will now check the position of the link and change the sensitivity It will now be necessary to re calibrate any sensors that you may previously have calibrated to this instrument Sensitivity link should be in this position for use with sensors with sensitivities lt 5mV V Sensitivity link should be in this position for use with sensors with sensitivities gt 5mV V SEt rES Parameter This parameter enables the setting of two features on the PSD It allows you to set the decimal point position of the display by pressing the a and v together to move the point position each press moves the decimal point position one place to the right It also allows for the setting of the display resolution or the number of display counts the display changes with an input change To change the resolution use the KI and O arrows to select a digit you want to change and the a
9. stability 100 ppm of FR Excitation Voltage 5Vdc 4 59MA maximum current Minimum Bridge Resistance 850 4off 3500 sensors in parallel Internal Battery 2off AA size alkaline access via sealed rear compartment Battery Life 45 hours Typical 450 hours in low power mode with 3500 sensor Update Rate from original offset at any time 2 5mV V 1 year Indication Display Type Up to 40mS can be set in configuration menu 7 digit LCD display 8 8mm high digits Display Resolution 1 part in 250 000 at 1Hz update rate 1 part in 65 000 at 10Hz update rate Control Variables Annunciators Front Panel User Keys Low Battery warning peak trough hold net shunt cal range Tactile Keys with recessed rims for ON OFFSwitches PSD power on off RANGE Selects between two ranges HOLD Hold the current display value press again to release GROSS NET Zero s display 100 range SHUNT CAL Generates simulated input for indicator testing PEAK Enables peak hold TROUGH Enables valley trough hold Settable Parameters Tare Zero value display resolution decimal point position display update rate low power mode auto power off Mechanical Electrical Connection 5 pin Binder socket mating plug supplied Physical Size See drawing below Weight 250 grams Legends Insert legends for engineering unit identification supplied Environmental Operating
10. switch the PSD ON or OFF press and hold the button The RANGE button allows the user to toggle between two independent scales An annunciator highlights the range that has been selected The HOLD button allows you to hold freeze the current display value when the button is pressed Pressing the HOLD button again releases the display The HOLD annunciator is illuminated when in the HOLD mode and the display will flash to alarm further that the user is not viewing instantaneous display values The GROSS NET button when pressed allows the user to toggle between displaying the Gross or Net display values This can be useful in many applications where it is necessary to display the change in display value from a certain part of the measurement range When in NET mode the NET annunciator is lit When in GROSS mode the NET annunciator is not lit The SHUNT CAL button allows the user to press this at any point in time ears The standard unit shunts a 100kO resistor across the negative excitation and negative signal connections If this is performed at the end of the calibration procedure then a figure can be noted so the user can check calibration accuracy or connection integrity The button has to be held down to operate When held down the SHUNT CAL annunciator is lit and the display will flash to alarm further that the user is not viewing instantaneous display values When the PEAK button is pressed the display will show the la
11. Limited PSD User Manual 4 Electrical Connection Information Sensor Connections The standard sensor connection is a 5 pin 723 series Binder connector The sensor connector is also used as a charging socket when the re chargeable alkaline battery option has been ordered the wiring for this is detailed below PIN 1 ve Excitation z PIN 2 ve Excitation ve Charge Input amp TEDS Common gt 4 PIN 3 ve Signal 1 3 PIN 4 ve Signal PIN 5 ve Charge Input or TEDS RS232 Port Connections If the PSD has been ordered with the optional RS232 output then this will be available via a 8 pin 723 series Binder connector The wiring for this is as detailed below PIN 1 Tx 2 PIN 2 Rx 4 g PIN 3 Gnd 1 3 6 7 Note PINS 4 to 8 not connected Internal Connections It may be necessary from time to time to know what the internal connections are For example if you disturb some of the connections whilst trying to insert the range legends or if you need to change the internal shunt calibration resistor These are shown below for reference only 518 818 ISSUE 2 Shunt Calibration Resistor Sensor Connections J9 TEDs Position RS232 option 5 Mantracourt Electronics Limited PSD User Manual There are six push buttons on the front panel of the PSD which are available for use in normal operation Each of these is described below Front Panel Button Function of Button in Normal Operation Mode x oO To
12. To select 50mV V you need to power down the unit and access the internal circuit board Move link LK1 and place it onto JP1 Power on the PSD and return to this point of the calibration menu You will notice that the menu parameter has changed to SENS 50 0 press to change the sensitivity to 50mV V and move on to the next parameter Press El to skip to next menu item Press to the set the display resolution This parameter sets the decimal point position for the display and the resolution i e a value of 000 005 would display the reading to 3 decimal places and the readings will change in steps of 0 005 The decimal point position is moved one place to the right each time you press the a and v together Any value can be entered for the resolution using the KI and O arrows to select a digit and the a and M arrows to increment or decrement the digits Press to accept the value and move onto the next parameter To save the settings and move on to the next parameter press THIS MENU IS DISABLED WHEN TEDS IS ENABLED Press El to skip to next menu item Press to the enter the calibration routine If you have chosen to enter the calibration routine you will be prompted whether you want to select LIVE if you do not press fia otherwise press PA You will then be prompted to select either of the other calibration methods which in order are ZABLE and CAL VAL to select any of the calibration methods press Otherwise press For
13. V V RANGE Press El To skip to next menu item Press To change the 50mV V gain Here the factory gain calibration can be changed to a measured value see Milli Volt Calibration Procedure back end of manual Once the derived value has been entered Press to confirm THIS CAN ONLY BE SET WHEN USING 50mV V RANGE Press El to skip to next menu item Press to change the 5mV V offset Here the factory offset value can be changed to a measured value see Milli Volt Calibration Procedure back end of manual Once the derived value has been entered Press to confirm Mantracourt Electronics Limited PSD User Manual Operation Features Normal Display Operation The PSD has a full 7 digit display which can be scaled using the calibration menu to suit the application it is to be used in The display can display the instantaneous peak or trough values It is also possible to hold the display value this only operates when not in peak or trough mode The display update rate decimal point position and resolution can be set to suit The PSD has two independent ranges All values set in one range are totally independent from the other Switching the PSD On Off The PSD is switched ON or OFF by pressing and holding down the d button for 3 seconds It is also possible to set an Auto off value in the configuration menu so that the PSD automatically switches itself off after a preset time if there is no keyboard activity
14. antability or fitness for a specific purpose The remedies outlined above are the buyer s only remedies MANTRACOURT ELECTRONICS LTD will not be liable for direct indirect special incidental or consequential damages whether based on the contract tort or other legal theory Any corrective maintenance required after the warranty period should be performed by Mantracourt Electronics Ltd approved personnel only ISO 9001 REGISTERED FIRM THE QUEEN S AWARDS D a FOR ENTERPRISE Fa 200 AMS CE In the interests of continued product development Mantracourt Electronics Limited reserves the right to alter product specifications without prior notice DESIGNED amp MANUFACTURED IN THE UK Code No 517 173 Issue 2 9 05 10 12 Mantracourt Electronics Limited PSD User Manual 24
15. dings at 2 5mV V and OmV V on both the model PSD and the high precision Multimeter Record your excitation reading To convert Multimeter reading to a millivolt per volt reading divide the output reading on the meter by the measured value of excitation The gain is then calculated by dividing the difference in the span of the Multimeter readings by The model PSD reading This value can then be entered into the millivolt per Volt Calibration menu under 5 0 gAln then press to confirm The offset of the model PSD is derived by subtracting the OmV V Multimeter reading from the model PSD reading Again enter this under 5 0 OFFS in the millivolt per Volt Calibration menu then press i to confirm SS Setup Diagram PSD handheld mV V Multimeter mV V 0 mV V 0 000338 0 000204423 2 5mV V 2 47993 2 499846 1 Gain A Multimeter reading A PSD reading 2 49984 0 000204423 1 008008mV V 6dp 2 47993 0 000338 2 Offset Multimeter reading PSD reading 0 000204423 0 000338 0 000096mV V 6dp Mantracourt Electronics Limited PSD User Manual 22 Specifications Performance Input Type Strain Gauge Full Bridge Sensors Input Range Up 5mV V 50mV V can be supplied with factory set option Non Linearity 50ppm of FR Thermal Drift lt 25 ppm C Temperature effect on i zero MAX apeme Temperature effect on 5 ppm C span MAX Offset stability 80 ppm of FR Gain
16. ition system can detect and automatically configure sensors This technology provides e Reduced configuration time by eliminating manual data entry e Better sensor tracking by storing data sheets electronically e Improved accuracy by providing detailed calibration information e Simplified asset management by eliminating paper data sheets e Reliable sensor location by identifying individual sensors electronically 3 Mantracourt Electronics Limited PSD User Manual Introduction The PSD Portable Strain Display Load Cell Force transducer readout is a microprocessor based portable instrument designed to interface with any full bridge sensor with an output sensitivity of up to 50mV V Bridge resistances from 85Q upwards can be used with the PSD Configuration and calibration of the PSD is achieved using the front panel push buttons to navigate through a very simple menu structure User functions available on the PSD include Range Selection Display Hold Freeze Gross Net indication selection Peak Hold selection Trough Hold selection Shunt Cal check The PSD is powered by two internal non rechargeable AA alkaline batteries There is an option to have rechargeable alkaline batteries which can be charged without the need for removing them from the PSD User Operation Full 7 digit LCD Operation Annunciators display Unit Labels 6 Push Buttons used for normal operation and for configuration Mantracourt Electronics
17. nd serial numbers and more importantly all the calibration settings determined by the manufacturer Analog Signal Smart TEDS Sensor AMN o TRANSDUCER MIXED MODE Digital TEDS INTERFACE ANALOGUE AND DIGITAL l How it works Plug and play is a data acquisition technology that can simplify the configuration of automated measuring systems by making a sensor s unique identification data available electronically As implemented according to IEEE P1451 4 data in the form of a transducer electronic data sheet TEDS is burned on an electrically erasable programmable read only memory EEPROM chip located on the sensor so when a properly adapted signal conditioner interrogates the sensor it can interpret the self identification data This technology provides a great benefit by eliminating the need for paper calibration sheets In addition it can simplify labeling and cabling problems as well as inventory control issues by letting you burn location data onto the chip when installing a sensor And because all sensors produced according to the standard will carry the same basic identically formatted self identification information you will be able to mix and match sensors and applicable signal conditioners across manufacturers Mantracourt Electronics Limited PSD User Manual 2 Advantages Plug and play sensors are revolutionizing measurement and automation With Transducer Electronic Data Sheets TEDS your data acquis
18. parameter Set Zero may also be set by pressing and ES at the same time Press El To skip to next menu item Press To change the update rate This allows the user to set the display update rate the options available is the update rate of the display in Hz Please note that the 25Hz update is only available in PEAK or TROUGH mode When you choose to change the update rate you will be prompted whether you want to select 25Hz if you do not press you will then be prompted to select any of the other values which in order are 10Hz 3Hz 1Hz 0 5Hz to set the update rate for the value you want presk Press El To skip to next menu item Press To set overload alarm This allows the setting of a visual overload The value entered is the display value at which the PSD displays Values between 9999999 and 9999999 can be entered using the KI and O arrows to select a digit and the a and M arrows to increment or decrement the digits Press to accept the value and move onto the next parameter Mantracourt Electronics Limited PSD User Manual Parameter Set up Information Press x To skip to next menu item Press To select operation mode This allows the enabling or disabling of the power save mode which updates at 1 update per second and pulses the sensor excitation This results in a lower accuracy 1 part in 20 000 To enable press To disable press EJ Press Ea To skip to next menu item Pre
19. r save facility will be automatically turned off The power save facility will therefore need to be re activated after calibration has been completed 17 Mantracourt Electronics Limited PSD User Manual Parameter The parameter is another power saving feature It allows for the setting of a time period in minutes between 05 and 99 00 de activates AUEO OFF i e if this was set to 25 then if the PSD detects no keyboard activity for a continuous 25 minute period then the PSD will power down to conserve power If keyboard activity is detected at any time during the 25 minute period then the time period is restarted This can be a useful feature in a site environment should the PSD be left unintentionally powered on rS232 Parameter This parameter allows the user to enable the RS232 output form the PSD by pressing when prompted by EnAbLEd On the display pressing will disable the RS232 The output format is ASCII The display value is passed to the RS232 port each time the display updates with a carriage return and line feed at the end of each data string The string information is as follows Baud Rate 9600 baud Stop bits 1 Parity None Data bits 8 Mantracourt Electronics Limited PSD User Manual 18 Calibration Menu Parameters SEnS 5 0 Parameter The PSD is factory set to enable calibration with sensors generating an input signal of 5mV V or less In the majority of cases it will not be necessary to read higher
20. sing the KI and O button to select a digit and the a and v buttons to change the digit When the value has been set press You will be prompted with InPut HI press Now enter the sensitivity figure supplied for the sensor by using the EN and OD button to select a digit and the a and M buttons to change the digit When the value has been set press CA You then be prompted with dISP HI Press to enter the display value required for the high input figure entered The value can be entered by using the KI and O button to select a digit and the a and v buttons to change the digit When the value has been set press You should now see donE displayed This means the calibration was successful press to the PSD to normal operation mode with the new calibration data stored If you see FaiLEd then you will need to repeat the calibration checking that you have completed the procedure in the correct order and that the sensor is connected correctly 21 Mantracourt Electronics Limited PSD User Manual Millivolt per Volt Calibration Procedure This procedure outlines how a millivolt per volt calibration might be undertaken 1 gt OT Bae Eat SS Worked Example Ensure that the factory settings for gain and offset are set to 1 and O respectively See millivolt per volt calibration section to do this Begin by connecting up the model PSD and a high precision Multimeter to the calibration source set at 2 5mV V with a 3500 load Take rea
21. ss To set auto power off This enables the setting of an auto power off value The value entered is in minutes If no front panel buttons are pressed for the time set here then the indicator will automatically power off to conserve battery life Values between 05 and 99 can be entered between 00 and 04 leaves the PSD permanently powered using the KI and O arrows to select a digit and the a and M arrows to increment or decrement the digits Press to accept the value and move onto the next parameter Press El To skip this parameter and exit menu Press To enable the RS232 output This feature enables you to enable or disable the RS232 output Further details of the RS232 format are provided further into this manual The RS232 output is an option that has to be ordered with the PSD To conserve battery life it is suggested that the RS232 output is disabled when it is not required To enable press To disable press E3 11 Mantracourt Electronics Limited PSD User Manual Calibration Menu To enter the Calibration Menu press and hold ES and ES buttons for 5 seconds Parameter Set up Information Press El To skip to next menu item Press To change sensor input sensitivity This allows the calibration engineer to change the sensitivity range of the PSD when connecting to sensors with a sensitivity of greater than 5mV V The PSD is factory set for 5mV V To ensure the unit is set to 5mV V press
22. st Peak reading PEAK To reset the Peak readings press the PEAK and TROUGH buttons simultaneously When in PEAK mode the PEAK annunciator will be lit and the display will flash to alarm further that the user is not viewing instantaneous display values To turn off Peak mode press the PEAK button When the TROUGH button is pressed the display will show the last Trough reading To reset the Trough readings press the TROUGH and PEAK buttons simultaneously When in TROUGH mode the TROUGH annunciator will be lit and the display will flash to alarm further that the user is not viewing instantaneous display values To turn off the Trough mode press the TROUGH button E TROUGH Mantracourt Electronics Limited PSD User Manual Menu Structure The PSD has two menus details of which are outlined below A CONFIGURATION MENU which enables the user to tailor the operation to meet a specific application requirement The values selected in the CONFIGURATION MENU are completely independent for each range 0 57 El 7 Mantracourt Electronics Limited PSD User Manual A Calibration Menu which is used to calibrate each of the two ranges with independent scales as well as setting the display resolution for each range SEnS 5 0 SEtrES 0000 000 CALibrAt IBA Live
23. telrs ooocccocccnccconcconnconnconnnonncoo noo nor eee corno nr ro nn corn c nora ro nano nnrannnonns 17 Calibration Menu ParaMeters ccccecccessceenceeeceeseeeneeeeeee nesses ARRETE KETER TEE S Eos 19 Calibration Procedures O A A ee A a a ARE 20 Millivolt per Volt Calibration Procedure oooococcconcccnncconcconononcconnconnconnconn roo n coo n ono nn conc ronnannnoons 22 Specifications A A A Ai 23 Mechanical DiIMENSION Sai ada 23 WAAN mess nata as ce cesta O A A AA A dea sevevese ey 24 1 Mantracourt Electronics Limited PSD User Manual What is TEDS Plug and play sensor hardware and software make configuring a smart TEDS sensor as easy as plugging a mouse into a PC The technology has greatly improved efficiency and productivity by completely eliminating manual sensor configuration Basic concept TEDS is at the heart of the new universally accepted IEEE 1451 4 standard for delivering Plug and Play capabilities to analogue measurement and test instruments In essence information in a Transducer Electronic Data Sheet provides interfacing devices with the critical sensor calibration information in order to perform accurate and precise measurements every time TEDS works in a similar way in which USB computer peripherals immediately work as they are connected TEDS enabled equipment maybe swapped and changed without recalibration saving time and money TEDS holds information such as a sensor manufacturer model a
24. the change in display value from that point This is useful for certain weighing applications where a tare weight exists which can be removed by putting the PSD into net mode SHUNT CAL Button The shunt calibration button when pressed puts an internal 100kQ resistor across the ve excitation and ve signal of the sensor generating a simulated output from the sensor therefore giving a simulated display value This can be pressed immediately after the sensor has been calibrated with the PSD and noted down for later reference The value noted can be used to get an idea of the calibration accuracy at a later date or for checking the integrity of the sensor and sensor cabling The shunt calibration resistor can be changed to suit specific requirements It is suggested that a 15ppm 0 1 tolerance resistor is used PEAK Button When pressed this button puts the PSD into peak mode This will display the highest display reading and hold it on the display until it is reset or a higher value is reached To reset the peak display press the peak and trough buttons simultaneously In peak mode it is possible to capture peaks at a rate of up to 25Hz To turn off the peak mode press the peak button TROUGH Button When pressed this button puts the PSD into trough mode This will display the lowest display reading and hold it on the display until it is reset or a lower value is reached To reset the trough display press the peak and trough b
25. the value has been set press You will then be prompted with APPLY HI unless you chose to USE SC in which case jump to the next stage At this point ensure that the high calibration stimulus is applied to the sensor and allow to settle of approx 3 seconds then press You then be prompted with dISP HI Press to enter the display value required with the high stimulus applied to the sensor The value can be entered by using the KI and O button to select a digit and the a and M buttons to change the digit When the value has been set press You should now see donE displayed This means the calibration was successful press to the PSD to normal operation mode with the new calibration data stored If you see FaiLEd then you will need to repeat the calibration checking that you have completed the procedure in the correct order and that the sensor is connected correctly ABLE Calibration Procedure When is displayed press will now be displayed press will now be displayed press You will be prompted with InPut LO press Mantracourt Electronics Limited PSD User Manual 20 Now enter the zero offset sensitivity of the sensor by using the KI and O button to select a digit and the a and M buttons to change the digit When the value has been set press M you do not know this simply enter all zeros You will be prompted with dISP LO Press to enter the display value required for the low input figure entered The value can be entered by u
26. uttons simultaneously In trough mode it is possible to capture troughs at a rate of up to 25Hz To turn off the trough mode press the peak button Mantracourt Electronics Limited PSD User Manual 16 Configuration Menu Parameters oy Eli The parameter is meant to be accessible to the user It allows the removal of fixed display offset values from the display so that the GROSS and NET features can operate from a zero point This may also be considered as a manual tare facility To zero the display simply enter the value that you wish to subtract from the display in the parameter i e if the display reads 000 103 and you wish it to read 000 000 then enter 000 103 in the SEt parameter Set Zero may also be achieve by pressing Gross Net and Hold button simultaneously Different values can be set for each RANGE Parameter The value sets the display update rate The options available are 25Hz 10Hz 3Hz 1Hz and 0 5Hz Different updates rates can be set for each RANGE The 25Hz rate only updates at this rate when in the PEAK or TROUGH mode When in normal display mode it has been limited to a 3Hz update as the digit fluctuations are impossible to view with the human eye The 10Hz 3Hz 1Hz and 0 5Hz rates update the display every 100mS 300mS 1000mS and 2000mS respectively The PSD when it leaves the factory is set at 3Hz The parameter allows the user to set a visual alarm The value that is entered is the display value that you
27. want the alarm to activate at When the alarm is activated the word OVErLOad appears on the screen To remove the alarm the display value must be reduced to a value that is lower than that set in the parameter This can be very useful as a safety feature or simply as a quick indication of when a preset level has been reached This value entered can be anywhere over the entire display range so there are no limitations Different values and settings are available for each RANGE SEt OPEr Parameter The PSD has a special power saving mode which can be enabled or disabled within this parameter pressing when asked whether you wish to select P SAVE will put the PSD into power save mode for the RANGE selected Pressing will de activate the power save facility When the power save facility is activated battery life is conserved by pulsing on the excitation voltage to the sensor As a result the accuracy is reduced as is the update rate When in this mode the quickest update rate is 3Hz and the accuracy of the display is reduced to 1 digit in 10 000 It is important to note these limitations when deciding whether to use the power save facility However it is also possible to set one RANGE with power save activated and the other without The benefit is that the battery life based on a 3500 sensor bridge being connected increases from 45 hours to 450 hours It is also important to remember that when the PSD is re calibrated with a sensor the powe
Download Pdf Manuals
Related Search