Wireless telemetry potentiometer acquisition module T24
Contents
1. The analyser page is provided as a tool and will not normally be needed unless you plan to change channels and want to find the best channel to select or to diagnose poor communications issues This page shows the radio signal levels detected across all the channels available to the T24 series of devices Using this tool may help in detecting noisy areas and allow you to decide on which channels you may want to use The above charts show the traffic from a Wi Fi network and it can be seen to be operating over channels 6 to 9 and it would be best though not essential to avoid using these channels Mantracourt Electronics Limited T24 RA User Manual 6 Data Provider Monitor T24 Toolkit 4 Data Provider Monitor ih LN RA Data Tag Total Per sec LQI 0 0129487 0 0218671 0 0152698 0 0172869 0 0130830 Select the devices you wish to log from the above list be checking them Pressing the Start Logging button will allow you to select a filename to log the data to View Last Log Start Logging T24 acquisition devices normally operate in low power mode and periodically transmit Data Provider packets This page shows all detected Data Provider packets which may be useful for checking that a device is operational NOTE When the toolkit connects to a device to enable configuration it will usually inhibit the transmission of Data Provider packets The Start Logging button will ask for a filename and proceed to log the rece2. Shows the input applied Shows the calibrated value This may not display Resistance correctly until you have Acquired the second point By Cert Format Format The module is factory calibrated to provide between 0 and 100 output value when the positive input varies between the negative and positive excitation Here you can calibrate the acquisition module and set a system zero if required This simple page allows semi automated calibration where you can apply known inputs to calibrate This calibration includes linearization and is automatically applied See later for By Cert and Advanced page where you can adjust individual gains and offsets Calibration Process Decide on how many points you will calibrate over Decide what inputs will be applied in ascending order at each point Enter the actual input in the required units that you want the module to read at each point Now proceed to apply each input in turn allowing a settle time and click the Acquire button at that point You can now apply the next input and click Acquire until all the points are completed The bottom of the page shows the Input Value and the Calibrated Value Once the second point has been acquired this Calibrated Value should display the actual calibrated value 13 Mantracourt Electronics Limited T24 RA User Manual Items you can change Number of Calibration Points Point 1 9 Acquire 1 9 Start Again System Zero By Cert Advanced
3. T24 RA Potentiometer Acquisition Module User Manual mantracourt com ME mantracourt Wireless Telemetry Range 2 4Ghz 1 CONNCCLiONS cascas A 2 POWER eese err EE A RS EBERT EN ple ia a O E ATEM RT PUE 2 Input CONNECTIONS carac 2 Configuration Season sea E 3 Installation A Shes th ee chee E ee chee at ee E Ta a ab ee Shad asa ee 3 T24 TOO Kit TE 3 T24 BSU Base Station esmas espe ees a aa e a a er ana e Sn Daio a ae ves ted dese 3 BPr ape 4 General Pages oov e eere ren Ne eye Nera roger e ees exe aea a e Ene dado sve EN ava o meae 4 Setup Base Station Communications ere ete te e ee nae de 4 HOME ME 5 ANALYSER ito casa RSEN EAE AS EE N RR eases Weiss ESSE ES ERN ORE CA RAS ERR UR ERKN KS AAA 6 Data Provider MOnItor d ro A ca aa sated cla RR DADE Ca aa apa 7 InformatiO sss dae Jel fase EAR RAE Wel ioe DEDE ERIS DEDE RAN RN PASE RAS ARA MU 8 Battery and Radio Levels eere Ie tee VE 9 anise nn a TS epa Peer e 4 04 ois bare WU aveo O a bre Faden Si 9 Battery and Radio Levels Advanced Settings ooccoccncconcnncnncnncnccnccoccnccoccncconconco cnc hehe seen 10 Data Rates and Quality i e 2 uertit re eR bos Nan ns P sng oo aos gia Pope Pe ares eme bor DO Sona re ERE TUE 11 Input Output Configuratio esperei oir en hehehe emen a ves RES ERE E e ne eb 13 Calibration
4. Enter the number of points you wish to calibrate over In its simplest form you could select two for a linear calibration For more complex calibrations which include linearization select three to nine points For each point enter the engineering unit value that you want the acquisition module to report at the applied input i e 1 67 Click this button when the input has been applied and the reading has been allowed to settle This will acquire the reading and allow you to move to the next points You will be able to click the button again to re acquire Click here to restart the calibration Once calibrated you may want to remove a fixed system value In the case of a strain gauge input this may be the weight of a sling shackle load bed etc Apply the required input and click here to set the system zero The current input will be removed from subsequent readings so that the reading will be zero To edit this value manually click the Advanced button System Zero is stored in non volatile memory in the acquisition module You can click the By Cert button to calibrate against a sensor calibration sheet You just need to enter the input values and associated engineering unit required output value of at least 2 points This will take you to a different screen Clicking the advanced button will allow you to edit the gains and offsets for each available calibration point This will take you to a different screen Mantracourt Electronics
5. This ranges from 55 which is a poor quality signal and 110 which is an excellent signal Mantracourt Electronics Limited T24 RA User Manual 10 Data Rates and Quality T24 Toolkit Data Rate Y E AS Re 28 04 Transmit Interval ms Enter the interval between taking a measurement and transmitting the result Default 300 Sample Time ms The longer the sample time the more accurate the readings but the less life will be achievable from the battery Default 5 Low Power Mode When Low Power mode is active the device semi sleeps between transmissions so battery life is vastly increased Default Yes Battery Life Guide Usable Battery Type Select a common battery type or enter a custom capacity Capacity Ah 2 X Alkaline AA Cell 1 5V Varta 4006 23 Sensor Impedance Ohms Usage Per 24 Hour Period Hours 1000 24 00 Noise Free Resolution Not Applicable Battery Life 28 days and 21 hours This page allows you to select the rate at which data is transmitted from the acquisition module and the quality By selecting low power mode and entering some other information the toolkit will also give guides on achievable battery life Note that the battery life calculator is assuming the best case scenario which is at 20 C and that the battery has a suitable low internal resistance or that a suitable capacitor is fitted across the battery See battery details in the Installation section Items you can change Transmit Interval
6. By Certificates s 2 cess ANENE EN EEVEE mene tage e vato eds 15 Calibration Advanced p 16 Chanhel and Encryption EUER 18 Save and Restore iii 1 UD 2120 0 2200 0m 19 AdvanCed Settings 3s o ceret ert ss cise ung E E eves Sa aC RE TES e a a sa 20 Installation E ii A id Ai 21 OMITE WA SE Sa aa a VA as 21 Power SUPPLY Battery ass atue cake dl ie cw Panini sac a sli Seia dog ed Tea sure cee Ca a gi e a 22 Considerations When Selecting Batteries cc cece cece cece ence eee eene ehe he hehe he ne nennen 22 Battery Types nenen 23 Power Supply Modules ces ect A rye onore rer vare argue cetero use ye dade val pesos 23 Lithium lon Polymer Module T24 BC1 ccecc ccc eee eee eee eee eee eee eee hehehe he hehehe sensn 23 Physical To TR rel d e 1D 24 Specification A e Cue ERR a YR ER ERR TERR ERE CERT ua 24 Suitable Batteries uA RES C E EUR RU EUR RO EUR Eq SO EUR E dU EUR E E RUN RN SPRACHE 24 Capacitor Module T24 BC2 5 iix iR En eaa RS ERN Ne RR Read os na nie RUE Maias Casada nen dono RISE MEE SNR S 25 MOUNTING a i eo orn RISK EREREE ERE RSRCHEE ER RCRERERSR E Rand C Pues cades ERR CES ERTR RERERER UE RTRS NE ERTA RR 26 RIS EAE LLLI ILI UIT 27 Internal Chip Antenna rore A Exe cue rote ure Puce re get oe a U ETE aeg se n 27 External Antenna ODEIOD e eoe Ser ao e A SE S E NU SAS ERR a Oo
7. Enter the transmission rate in milliseconds The default is 300 giving approximately 3 per second which is ideally suited to reading on a handheld You may want to slow this down to achieve longer battery life Sample Time This is the length of time in milliseconds that the input is sampled before the value is transmitted This can vary between 5 milliseconds and close to the Transmit Interval A shorter sample time means that the device is awake for less time so battery life is increased but at the expense of a reading with less noise free resolution You can vary this to see the effect on battery Low Power Mode Unless the acquisition module is non battery powered this should be set to Yes In between transmissions the acquisition module will enter sleep mode which for some modules such as the strain gauge acquisition module will have a massive effect on battery life A Reason for not using Low Power Mode would be if using the device in a Master Slave arrangement with PC for example Battery Type This is not a parameter of the device but information used by the battery life guide You can choose from some preset batteries or choose custom to allow 11 Mantracourt Electronics Limited T24 RA User Manual Usable Capacity Sensor Impedance Ohms Usage Per 24 Hour Period you to select your own battery capacity See below This will also offer to change the Battery Low Level if the level suitable for the chosen battery is not the level curren
8. Manual Approvals CE Ce Complies with EMC directive 2004 108 EC The Radio Equipment and Telecommunications Terminal Equipment R amp TTE Directive 1999 5 EC European Community Switzerland Norway Iceland and Liechtenstein English This equipment is in compliance with the essential requirements and other relevant provisions of Directive 1999 5 EC Deutsch Dieses Gerat entspricht den grundlegenden Anforderungen und den weiteren entsprecheneden Vorgaben der Richtlinie 1999 5 EU Dansk Dette udstyr er i overensstemmelse med de vaesentlige krav og andre relevante bestemmelser i Directiv 1999 5 EF Espanol Este equipo cumple con los requisitos esenciales asi como con otras disposiciones de la Directive 1999 5 EC Francais Cet appareil est conforme aux exigencies essentialles et aux autres dispositions pertinantes de la Directive 1999 5 EC slenska Pessi b nadur samrymist l gbo num kr fum og d rum kvae um tilskipunar 1999 5 ESB Italiano Questo apparato conforme ai requisiti essenziali ed agli altri principi sanciti dalla Direttiva 1999 5 EC Nederlands Deze apparatuur voldoet aan de belangrijkste eisen en andere voorzieningen van richtlijn 1999 5 EC Norsk Dette utstyret er i samsvar med de grunnleggende krav og andre relevante bestemmelser i EU directiv 1999 5 EC Portugu s Este equipamento satisfaz os requisitos essenciais e outras provis es da Directiva 1999 5 EC Suomalainen Tama
9. batteries Various devices are available that utilise the transmitted data and include handheld and PC displays etc Connections This section will show you how to get the device pair working out of the box You will require a 3 Volt dc supply for the acquisition module which may be 2 X AA alkaline batteries Power Attach power supply wiring to the module as shown below 3V Supply 9 OV Supply Connect to a 3 Volt power supply or batteries WARNING This module is not reverse polarity protected WARNING The maximum voltage is 3 6V Input Connections NOTE The acquisition module may already be mounted in a connectivity module In this case please refer to the connectivity module user manual for the connection details SHLD o GND In 2V5 OMJjO O O OIJOJ O O O Basic configuration with potentiometer shown below o SHLD 0 5 EXC K o JN C o In o EXC 100 O O O RA Mantracourt Electronics Limited T24 RA User Manual Configuration This section explains how to install software and configure the module Please note that you will need the T24 Toolkit software and a T24 BS base station to allow your computer to communicate with T24 telemetry devices Installation T24 Tool
10. become intermittent but still achievable You can set the level at which the acquisition module reports a low battery If the battery voltage is below the Low Battery Level the bar will be coloured orange Items you can change Low Battery Level Click this item to set the battery low level Clicking the Advanced button will give more detailed information on the RSSI and CV levels of the received radio packets 9 Mantracourt Electronics Limited T24 RA User Manual Battery and Radio Levels Advanced Settings T24 Toolkit LQI amp Battery et PS 8739 LIDA Signal Strength Local signal received at the Base Station LQI 099 RSSI 079 CV 106 Ooo o Link Quality Indicator A summary Radio Strength Indicator The Correlation Value Essentially the indication of the quality of the signal strength in dB of the quality of the received data radio link received data Remote signal received at the acquisition module LQI 100 RSSI 056 CV 108 Battery Voltage 3 15V Low Battery Level LQI value which stands for Link Quality Indicator This value will range from O to 100 and within this band you should still achieve communications As the level drops towards zero communications may become intermittent but still achievable RSSI is effectively the received dB level which will range from about 30 which is a good signal to 90 which is a weak signal CV is the correlation value and indicates how well the signal can be decoded
11. eee oe 27 External Aritenrias 25e oid eere ddr a sad erae Rer aera ea e Rd ea prag rene de e uni dre den datadas idas Dd 28 Antenna OrientatiON ssa eere tee tae ehh EEA X a 28 Specifications PPP srysrivasryn baaba TERT PET TDOTTOO TOIT TDOEE TREO TD TTE RR 29 General Radio mr m 29 TZARA e 29 Approvals secs 1 0 2 eru perna re areae a US chs a Du E 30 cp 30 ECGs Ro TRITICI CU ca a uae aera Ta ULT 30 Industry Canada REGI A eI eO ei Se A e Desa e nesciens asa Dane ed 31 OEM Reseller Marking and Documentation Requirements csscsccsccsccsccsccsscesccscescescescessesees 31 dde xU 31 je 31 CE sesta lsh cules cle ere sino ue A suere e uasa v ince O eroe Fa Ex EE eR e Ee sea ER SEE e Neo arai 31 Declaration Of Conformity 5 etre eee eese eye uer re eese e wie cedboucasecievissedeevossecvevdssetieueseeee 33 Worldwide Regional Approvals ceceeeeeeeeee eene rece nene rece re rear ear era ce rece re rear ese erret nnns 34 Important NOte 5 5 NN 34 Warranty TO 34 Mantracourt Electronics Limited T24 RA User Manual Introduction Overview The T24 RA is a remote acquisition module for the collection and processing of potentiometer resistance measurements The module measures the resistance and periodically transmits it Between transmissions the device is optionally in a power saving sleep mode to conserve
12. given in the above graduated drawing must be respected B The CE marking must have a height of at least 5mm except where this is not possible on account of the nature of the apparatus B The CE marking must be affixed visibly legibly and indelibly Mantracourt Electronics Limited T24 RA User Manual 32 Declaration Of Conformity We Mantracourt Electronics Limited The Drive Farringdon Exeter Devon EX5 2JB declare under our sole responsibility that our products in the T24 Radio Telemetry Product Range to which this declaration relates are in conformity with the appropriate standard EN 300 328 following the provisions of the Radio and Telecommunications Terminal Equipment Directive 1999 5 EC FCC CFR Title 47 part 15c BS EN 61000 4 2 and BS EN 61000 4 3 following the provisions of the EMC Directive 2004 108 EC and Low Voltage Directive 2006 95 EC December 2007 Brett James FCC ID VHARAD24 Development Manager Mantracourt Electronics Limited 33 Mantracourt Electronics Limited T24 RA User Manual Worldwide Regional Approvals Europe CE USA FCC Canada IC Australia To Be Determined China To Be Determined Japan To Be Determined Important Note Mantracourt does not list the entire set of standards that must be met for each country Mantracourt customers assume full responsibility for learning and meeting the required guidelines for each country in their distribution market For more information
13. relating to European compliance of an OEM product incorporating the T24 range of modules contact Mantracourt or refer to the following web site www ero dk Warranty All Telemetry products from Mantracourt Electronics Ltd Mantracourt are warranted against defective material and workmanship for a period of 1 one year from the date of dispatch If the Mantracourt 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 Mantracourt 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 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 specifically disclaims any implied warranties of merchantability or fitness for a specific purpose The remedies outlined above are the buyer s only remedies Mantracourt will not be liable for direct indirect special incidental or consequential damages whether based on the contract tort o
14. Battery life is calculated with a T24 RA running in low power mode with a sample time of 5mS and transmit interval of 333mS and an input impedance of 1000 Ohms for 2 hours out of every 8 hours Mantracourt Electronics Limited T24 RA User Manual 24 Capacitor Module T24 BC2 This is used for batteries which have an internal resistance of greater than 150mOhms overcoming voltage drops during high current phases of the low power mode cycle This problem becomes apparent when attempting to communicate with high peak current acquisition modules such as a T24 PA using the T24 Toolkit or power cycling when the battery is near the end of its life In normal operation Low power mode with a handheld T24 HS where the T24 PA is connected to an uninterrupted battery this module is generally not required Using lower impedance strain gauges or multiple parallel strain gauges exacerbates this problem Consult Sales for details Alternatively fit an electrolytic capacitor across battery of 2000uF or greater This capacitor should be of low ESR lt 70mOhms 25 Mantracourt Electronics Limited T24 RA User Manual Mounting Mechanical size 37 5 mm j 16 8 mm 16 0 mm 29 8 mm 2 1mm 8 42 mm I 4 80 mm 32 12 mm There are two holes available for mounting The one nearest the connection pads can accept an M2 screw or American equivalent 40 80 Important Note DO NOT USE 72 scr
15. I figures an increase in the packet loss rate and in extreme cases complete loss of signal Fortunately if consideration is given to these effects at the integration stage then a good quality link will be obtained Guidelines for product design When selecting materials for product enclosures preference should be given to fibreglass light coloured ABS or Polypropylene at the wavelength of 2 4GHz radio other materials will adversely affect the signal by attenuation refraction or change in polarisation If the application demands that the radio is fitted inside a metal enclosure then ensure that the specified clearances are maintained around the antenna and design in a fibreglass RF window at least as large as the clearance dimensions but ideally as large as possible RAD24i radios fitted inside a product should be oriented so that the chip antenna will be vertical when the product is in its normal operating position Guidelines for installation When planning installations ensure that line of sight between nodes is maintained and that objects or structures are kept at least one metre away from antennae wherever possible To avoid poor link quality between a RAD24i radio and a handheld device ensure that the RAD24i is mounted so that the chip antenna is vertical Improvement may also be obtained by altering the height above ground of the RAD24i a small increase or reduction in antenna elevation will often improve reception Range underwate
16. Limited T24 RA User Manual 14 Calibration By Certificate T24 Toolkit Calibration 2 E p 29 ar 198 a E LO t Calibrate by entering certificate info 19 Number of Calibration Measurement Points m Select the number of points you want to use The firmware version in this module allows you to calibrate using up to 10 measurement points Calibration Points Engineering Units Engineering Units O CAS 0 0 0 0 2 O O 0 0 0 0 3 00 0 0 0 0 00 400 0 0 0 0 0 0 5 6 0 0 0 10 6 0 Do Once you have entered the desired number of points click the Calibrate button Please note that when you return to this page the numbers may not be those you last entered The values entered and displayed are used ONLY when you click the Calibrate button and therefore cannot be used to verify current calibration settings To reset calibration back to factory defaults Click Here In some circumstances it may not be possible to apply inputs in which case the calibration can be entered manually from the calibration table or certificate without ever having to connect the input Items you can change Number of Calibration Enter the number of points you wish to calibrate over In its simplest form you Points could select two for a linear calibration For more complex calibrations which include linearization select three to nine points Input Points 1 9 Enter the input point for which you will specif
17. Use this setting with caution as this can seriously affect battery life LED Mirror To Digital Output When set to True the state of the LED will be mirrorred on the digital output You may not be able to change this setting from No to Yes on devices that do not support this feature Transmit Power 75 Enter the transmission power level in percent default is 100 You should not normally need to change these settings Items you can change Sleep Delay Here you can enter a delay in seconds after which the acquisition module will return to deep sleep if no Keep Awake message is heard from the T24 HS handheld The default is 60 seconds Data Tag The data transmitted by the acquisition module is marked with a Data Tag which is a 2 byte hexadecimal code By default this is set to the last 2 bytes of the device ID or to put it another way the last 4 characters of the device ID If by some chance you had two acquisition module devices that would be working on the same channel and had the same last 4 characters in their ID 1 in 65 535 chances you may want to change the data Tag of one of the devices and perform pairing again with the T24 HS handheld Startup Time Some acquisition modules power a sensor from their excitation voltage When coupled to a sensor with a slow startup time this setting is used to delay the measurement after wakeup from sleep between readings This gives the sensor time to settle at the expense of battery life F
18. alue input Resultant Gain Resultant Offset 17 Mantracourt Electronics Limited T24 RA User Manual Channel and Encryption T24 Toolkit Channel and Encryption 2E a A 28 E O4 Channel You can select 1 of 16 channels Encryption Key The encryption key is 32 hex characters long 00000000000000000000000000000000 Ii NOTE Changing the channel and key will not affect the device until it has been power cycled If you have a handheld device and one or more acquisition devices and you want to change the channel and keys for all you could do either of the following Connect this toolkit to each of the devices in turn and change the channel and key settings Connect to just the handheld device and set the channel and key as required Next using the pair function in the handheld connect to each acquisition device to change its settings to match those of the handheld Connect to one device and change its channel and key as required Click the Home button and then re pair to that device The base station will now match its settings to that device Return to this page and click the Advanced button From here you will be able to quickly change the settings of multiple devices to match the base station just by pairing with each one in turn Advanced Here you can change the channel and encryption key for the acquisition module device If you want to change the channel of an acquisition module and T24 HS pair there is no need t
19. ame and location to save the configuration file to All configuration information including calibration data will be saved to the file The file extension is tcf Restore Click this button to open a file dialog window to allow you to select a filename and location of a previously saved file to load into the connected device All configuration information including calibration data will be overwritten The file extension is tcf Advanced Settings Click this button to enter the Advanced Settings Page Here are settings which do not normally require changing 19 Mantracourt Electronics Limited T24 RA User Manual Advanced Settings T24 Toolkit Advanced Settings ET EL pS amp 28 EL gt Sleep Delay s Enter a time in seconds after which without receiving a Keep Awake message the device will enter deep sleep where no transmissions will occur again until the device is woken Data Tag B D 07 This identifies the data transmissions and should only be changed under instruction If this is changed then you would need to pair the device again with any reliant modules such as handhelds Startup Time ms emm When operating in low power mode this time entered in milliseconds determines how long to wait before beginning the sample time that takes measurements This is to allow some input sensors powered by the acquisition module to power up before the input is sampled Strain gauge inputs do not require this delay so should be set to zero
20. arger and power supply suitable for the T24 range of 3V acquisition modules The T24 Battery Charger is designed to supply a constant 3 3V from a Li ion Battery while also charging the battery from an input voltage The unit comes pre configured to provide a charging current of 466mA suitable for VARTA LIP653450 This module also supports additional batteries providing a charge current of 133mA via the removal of the leaded resistor non surface mount 23 Mantracourt Electronics Limited T24 RA User Manual Physical Connections Charging Current Resistor Fitted 466mA Resistor Removed 133mA LED lights when supply voltage applied Specification Parameter Supply Voltage 4 1 5 6 V Regulated Voltage Output 3 3 V Battery positive connection 3 7 V Maximum Cable Length 150 mm Quiescent Current 1 7 pA Note LED will only be lit when an input voltage is applied Suitable Batteries VARTA LIP653450 Rated Capacity 1100mAh Dimensions 35 x 54 x 7 mm Weight 20g Charge Time 3 Hours 466mA Battery life 1 month 25 days VARTA LIC18650 ae Rated Capacity 2200mAh Dimensions 18 25 Diameter 65mm Height Wa gt e e e Weight 46g e Charge Time 4 5 Hours 466mA e Battery life 3 months 20 days UBC 581730 e Rated Capacity 250mAh e Dimensions 18 x 31 5 x 5 8 mm e Weight 6 59 e Charge Time 2 Hours 133mA e Battery life 12 days 13 hours Note
21. ew size Note that the mounting hole is connected directly to the Battery ground of the acquisition module The mounting hole near the chip antenna cannot accept metal mounting hardware The connection holes are on a 1 9mm pitch and are a diameter of 1mm Mantracourt Electronics Limited T24 RA User Manual Antenna Internal Chip Antenna There must be no metal objects within 7mm of the antennas long edge and 20mm from the short edges See diagram below Internal Antenna External Antenna Option Use of a T24 external antenna requires a T24 acquisition module with a UFL connector stud in place of the on pcb antenna T24 acquisition modules fitted with a UFL stud have a suffix e to the part number e g T24 SAe Note The suffix e is omitted where the T24 acquisition module is fitted inside a T24 ACM or T24 ACMi enclosure e g T24 ACM SA T24 ACMi SA 27 Mantracourt Electronics Limited T24 RA User Manual External Antennas The external antennas come in two styles The flat PCB antenna can be mounted inside a plastic housing or to the outside of a metal housing The PCB requires 3mm Clearance on all edges this also applies to the RF window The bulkhead mounting antenna can be used with metal or plastic housings Care must be taken when mounting the Antenna to ensure the installation does not become directional Antenna Orientation For the maximum range the acquisition module and any other modules should be or
22. ientated as shown The sensitivity to the radio transmission will be reduced if the acquisition module is oriented in a vertical or portrait position if a handheld is used because the handheld can only be used in one orientation Mantracourt Electronics Limited T24 RA User Manual 28 Specifications General Radio Min Typical Max Units License License Exempt Modulation method MS QPSK Radio type Transceiver 2 way Data rate 250 K bits sec Radio Frequency 2 4000 2 4835 GHz Power 1 my Range RAD24i Integrated antenna 100 325 Metres feet Range RAD24e External antenna 200 650 Metres feet Channels DSSS 16 Maximum range achieved in open field site at a height of 3 metres above ground T24 RA Specification at 3V supply at 25 C Measurement Min Typical Max Units Sensor Excitation Voltage 2 4 235 2 6 VDC Input Range 500 100 000 Ohms Accuracy 0 01 of Full Scale Electrical Min Typical Max Units Power Supply voltage 2 1 3 0 3 6 V DC Power Supply ripple 50 mV AC pk pk Power Supply current Min Typical Max Units Normal Mode 35 65 mA Standby Low power mode 5 40 UA Environmental Min Typical Max Units Operating temperature range 40 85 C Storage temperature 40 85 Humidity 0 95 RH Physical PCB Dimensions 16 8 x 37 5 x 6 5mm 29 Mantracourt Electronics Limited T24 RA User
23. ilar to those of the FCC A clearly visible label on the outside of the final product enclosure must display the following text Contains Model RAD24 Radio 2 4 GHz 1C 7224A RAD24 Integrator is responsible for its product to comply with RSS 210 Low power Licence exempt Radiocommunication Devices All Frequency Bands Category Equipment RSS CE The T24 series has been certified for several European countries If the acquisition module is incorporated into a product the manufacturer must ensure compliance of the final product to the European harmonized EMC and low voltage safety standards A Declaration of Conformity must be issued for each of these standards and kept on file as described in Annex Il of the R amp TTE Directive Furthermore the manufacturer must maintain a copy of the T24 device user manual documentation and ensure the final product does not exceed the specified power ratings antenna specifications and or installation requirements as specified in the user manual If any of these specifications are exceeded in the final product a submission must be made to a notified body for compliance testing to all required standards OEM Labelling Requirements The CE marking must be affixed to a visible location on the OEM product 31 Mantracourt Electronics Limited T24 RA User Manual Ce The CE mark shall consist of the initials CE taking the following form B If the CE marking is reduced or enlarged the proportions
24. ived data to a CSV file in the following format Data Tag Elasped mS Value The View Last Log button will launch the application associated with CSV files and open the last logged file 7 Mantracourt Electronics Limited T24 RA User Manual Information T24 Toolkit Information BTE AS aa E D t ID FFBDO7 Model T24 RA Firmware Version 1 08 Radio Module Firmware Version 2 1 Name MINS m Resistance Acquisition Module Once successfully paired to a device this page is displayed This page shows you information about the connected device Items you can change Name You can enter a short description which may help you recognise this device in the future Mantracourt Electronics Limited T24 RA User Manual 8 Battery and Radio Levels T24 Toolkit LQI amp Battery 2132298738 7 0 A Signal Strength Local signal received at the Base Station LQI 065 F Link Quality Indicator Asummary indication of the quality of the radio link Remote signal received at the acquisition module LQI 074 gt Battery Voltage 3 15V Low Battery Level Here you can see the voltage of the battery and the radio signal levels at the base station and the remote acquisition module This simple view gives an LQI value which stands for Link Quality Indicator This value will range from 0 to 100 and within this band you should still achieve communications As the level drops towards zero communications may
25. kit To configure the devices we must use the T24 Toolkit software application This can be downloaded from our web site or may be shipped with your products Install this on a PC or laptop Run setup exe and follow the prompts to install the software T24 BSu Base Station If you have a USB version of the base station T24 BSu then you just need to plug this into a USB socket on your PC If you are using an alternative base station then please refer to the appropriate manual 3 Mantracourt Electronics Limited T24 RA User Manual T24 Toolkit The T24 Toolkit provides a means of simple configuration and calibration of the acquisition module along with useful tools to aid integration Run the T24 Toolkit software application PLEASE NOTE Depending on which acquisition module is selected the screenshots may vary slightly This will generally be in naming of units and device descriptions The screenshots shown are those shown when a T24 PA strain gauge acquisition module is connected General Pages Setup Base Station Communications T24 Toolkit Settings 3 NIB he lali 3 Ju Select the connection type between the base station and the Interface Select the interface between the computer and the base station Select the COM port that the base station is connected to Baudrate E TE i 7 E Select the baudrate that matches the settings of the base station DIP 250000 b Base Station Address Each base station has an addre
26. laite tayttaa direktiivin 1999 5 EY oleelliset vaatimukset ja on siina asetettujen muidenkin ehtojen mukainen Svenska Denna utrustning ar i verensst mmelse med de v sentliga kraven och andra relevanta best mmelser i Direktiv 1999 5 EC This equipment is in compliance with the essential requirements and other relevant provisions of Directive 1999 5 EC FCC FE Family RAD24 Models i and e for internal and external antenna variants For antenna T24 ANTA and T24 ANTB FCC ID VHARAD24 This device complies with Part 15c of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation CAUTION If the device is changed or modified without permission from Mantracourt Electronics Ltd the user may void his or her authority to operate the equipment Mantracourt Electronics Limited T24 RA User Manual 30 Industry Canada H f Industry Industrie Canada Canada Models i and e for internal and external antenna variants For antenna T24 ANTA and T24 ANTB IC 7224A RAD24 This apparatus complies with RSS 210 Low power Licence exempt Radiocommunication Devices All Frequency Bands Category Equipment RSS OEM Reseller Marking and Documentation Requirements FCC The Original Equipment Manufacturer OEM must ensure that FCC labelling requirements are met This i
27. ncludes a clearly visible label on the outside of the final product enclosure that displays the contents as shown Contains FCC ID VHARAD24 This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation The acquisition modules have been tested with T24 ANTA and T24 ANTB When integrated in OEM products fixed antennas require installation preventing end users from replacing them with non approved antennas Antennas other than T24 ANTA and T24 ANTB must be tested to comply with FCC Section 15 203 unique antenna connectors and Section 15 247 emissions Acquisition modules have been certified by the FCC for use with other products without any further certification as per FCC section 2 1091 Changes or modifications not expressly approved by Mantracourt could void the user s authority to operate the equipment In order to fulfil the certification requirements the OEM must comply with FCC regulations 1 The system integrator must ensure that the text on the external label provided with this device is placed on the outside of the final product 2 The acquisition modules with external antennas may be used only with Approved Antennas that have been tested by mantracourt IC Labelling requirements for Industry Canada are sim
28. o change both devices Simply pair to the T24 HS handheld and change its channel and key Now perform pairing to the acquisition module from the handheld and the acquisition module will be configured to match the handheld NOTE Early acquisition module do not yet utilise the encryption keys so these should be left at all zeros Items you can change Channel Select a channel between 1 and 16 The default is channel 1 You can use the Spectrum Analyser mode to determine a good clean channel to use NOTE Channel 16 is used to negotiate pairing so avoid this channel if possible Encryption Key Only devices with identical encryption keys can communicate You can isolate groups of devices on the same channel or just use the key to ensure the data cannot be read by somebody else Mantracourt Electronics Limited T24 RA User Manual 18 Save and Restore T24 Toolkit Save and Restore aqu F 1 aa E LOA Query the device for its parameters and save these to a configuration file on your computer or network location Load a previously saved configuration file into the currently connected device NOTE As all parameters are restored you will overwrite the existing device calibration information Here you can save the device settings to a file on your PC so that they can be later loaded back into the same or different device Items you can change Save Click this button to open a file dialog window to allow you to select a filen
29. o ensure that the maximum voltage on the acquisition module is not exceeded Example GP 270AAHC AA Recommend T24 BC2 module to maximise usable capacity Most cells are 1 2V so two in series gives 2 4 Volts Three in series can be used to give 3 6 Volts These do not have the usable capacity of an alkaline battery These are generally only useful if they are to be charged on a regular basis If charging these cells in circuit precautions must be taken to ensure that the maximum voltage on the acquisition module is not exceeded Example Recommend T24 BC2 module to maximise usable capacity Lithium cells can be used but note that the maximum voltage is 3 6 Volts Select a cell with low internal resistance Example Saft LS17500 A Saft LSH20 D Recommend T24 BC1 module as these cells usually have a high internal resistance These can be found at 1 5 Volts and can therefore be a direct replacement for Alkaline cells The low internal resistance and high capacity make these batteries an ideal choice Example Energizer L91 These generally start at 3 7V and exceed the maximum allowable voltage These are usable if a regulator and charging circuit can be installed between the acquisition module and the battery Care must be taken here that the regulator does not draw too much current when idle so that the low power modes are not compromised Recommend T24 BC1 module Lithium lon Polymer Module T24 BC1 The T24 BC1 is a battery ch
30. or strain gauge inputs this settings should be zero LED Mirror to Digital Output When set to Yes each time the LED is active the digital output is active This can be useful if the module is to be encapsulated or enclosed and enables a second LED to be externally mounted This is very useful when using a T24 HR roaming handheld as the acquisition module LED will activate while the handheld is in communications with the module Transmit power Set the transmit power level from O 100 Default is 100 Mantracourt Electronics Limited T24 RA User Manual 20 Installation Overview Radio performance at microwave wavelengths is very dependent upon the operating environment any structure within the operating region of the radios will give rise to three effects Obscuration Obscuration will result in reduced range and occurs when an obstruction masks the line of sight between radios Aberrations to the horizontal and vertical space patterns Distortion of these patterns may occur if structures or objects are placed in the near or intermediate field of the antenna The effect will be to distort the coverage patterns adversely affecting range and link quality Reflection Any object placed in line of sight of the transmit antenna will result in signals arriving at the receiver by an indirect path Degradation of performance due to reflection multipath effects appears as reduced range or poor link quality Any of the above will cause poor RSS
31. points you wish to calibrate over In its simplest form you Points could select two for a linear calibration For more complex calibrations which include linearization select three to nine points Input Points 1 9 Enter the input point to which the associated interpolated gain and offset mV V shown in this values will be applied Note between points the gain and offset values are screenshot linearly interpolated Inputs are extrapolated below point 1 and above point 9 Gain 1 9 Enter the gain value for associated point Offset 1 9 Enter the Offset value for associated point Rotary limit This is the value at which the input will move from maximum to minimum value This is useful for applications where the potentiometer input is endless i e moves from the maximum to the minimum as it wraps round This parameter stops the unit reporting values outside the viable input range System Zero You can set the system zero value here or set it to zero to remove the system zero effect Mantracourt Electronics Limited T24 RA User Manual 16 Description of Linearisation Calculations The input value is looked up in a table of points which is dependent on what the user has selected starting from the bottom of the table When a point is found to which the input is less than then this point and the previous point are used to extrapolate a gain and offset from This leads to a resultant gain and offset which is applied to the mV V values as follows V
32. r is only a decimetre or so depending on packet rate Best performance underwater is obtained by using low packet rates and immersing water proofed antennae rather than water tight enclosures containing the antennae 21 Mantracourt Electronics Limited T24 RA User Manual Power Supply Battery The acquisition module operates from 2 1 to 3 6 Volts dc so can be supplied from a variety of cells WARNING It is important to note that the acquisition module is NOT reverse polarity protected WARNING The maximum voltage is 3 6V Considerations When Selecting Batteries Re chargeable or replacement This really depends on the application Some applications where expected battery life with alkaline batteries will be many years would probably not warrant the use of re chargeable batteries Re chargeable batteries have implementation issues such as how to connect to the charger how to seal this connection if required can the batteries be re charged at a convenient point in the operation of the device I E between shifts and does the voltage when charging exceed the maximum supply voltage of the acquisition module if so the inline charging module will need to be fitted Required battery life Driven by the application and mainly dependent on measurement rate and sample time The operation would normally require that the acquisition module is used in Low Power Mode to maximise battery life Size of Choosing a battery will be influenced by how m
33. r other legal theory Any corrective maintenance required after the warranty period should be performed by Mantracourt approved personnel only MI FEC CER Y Industry Canada Designed manufactured REGISTERED FIRM Industrie Canada and supported in the UK In the interests of continued product development Mantracourt Electronics Limited reserves the right to alter product specifications without prior notice Code No 517 930 Issue 1 3 27 10 14 Mantracourt Electronics Limited T24 RA User Manual 34 mE mantracourt Distribuidor Brasil e Am rica do Sul CONTATO Endere o Rua Sete de Setembro 2671 Centro 13560 181 S o Carlos SP Brasil o Lraleg 55 16 367 oi Metrolog Controles de Medi o Fax 55 16 3372 7800 Internet www metrolog net metrolog metrolog net www metrolog net mantracourt com metrolog metrolog net tel 55 16 3371 0112 mE
34. ss settable by DIP switches The address selected here must match the connected base station you wish to connect men Select USB as the interface and select 1 as the Base Station Address In the toolkit all items that can be changed by the user are coloured orange To change a value just click on the relevant orange item You will then be presented with a new dialog window allowing you to change the value This may use a slider text box or list to allow your new value to be entered Click the Home button to attempt communications with the base station If no communications can be established the toolkit will remain on this page You will need to check that the base station is powered and that it is connected to the converter correctly Mantracourt Electronics Limited T24 RA User Manual 4 Home T24 Toolkit T tn gt 2 A Monitor or Log You can view and log the data being transmitted from an acquisition module or view the spectrum analyser by clicking the icons above right Pairing is NOT required to log data from your device Configure your device To configure your module we need to temporarily pair to it When we pair from the Toolkit we configure the base station radio settings to match the remote module To pair you must Remove the power from your module Initiate the pair by clicking the button below Re apply the power to the module When applying power be careful to do this cleanly because if the module is po
35. tions when the device can be subject to vibration This is due to the interruption of supply from the battery to the acquisition module caused when the spring arrangement holding the battery to the terminal of the holder is defeated Corrosion of terminals must also be considered as this will also introduce resistance into the supply connections This could be overcome by ensuring the enclosure is sealed Optimising battery life Battery life can be optimised by considering the following Use of low power mode Transmission interval Required Measurement resolution Sample time Sleep Wake configuration Auto Sleep duration Mantracourt Electronics Limited T24 RA User Manual 22 Battery Types Battery Type Alkaline Zn MnO Nickel Metal Hydride NiMh Nickel Cadmium NiCad Lithium Primary 3 6V Li SOCL Lithium Iron Disulphide Li FeS Lithium lon and Lithium Polymer LiON LiPo Power Supply Modules Notes Pairs of alkaline 1 5V cells are the most common Use D cells for maximum life and AA cells where space is restricted Example Varta 4014 D Varta 4006 AA Recommend T24 BC2 module to maximise usable capacity Most cells are 1 2V so two in series gives 2 4 Volts These can match alkaline batteries in capacity but as the charged voltage is lower they do not match the usable capacity These batteries self discharge at a faster rate than alkalines If charging these cells in circuit precautions must be taken t
36. tly set This is not a parameter of the device but information used by the battery life guide This is the capacity of the battery in Amp Hours and has a profound effect on battery life calculations This capacity needs to be calculated from battery manufacturer s data sheets to take into account that we can only use batteries down to 2 1 Volts so in the case of twin AA cells this would be 1 05 Volts Generally the usable capacity will not be as high as that advertised by the battery manufacturer Temperature and internal resistance of the battery are not taken into account in the guide Although the Impedance will vary an estimate of the average sensor impedance will provide a good indication of battery life Enter the number of hours per 24 hour period that the T24 HS handheld will be turned on and communicating with an acquisition module Mantracourt Electronics Limited T24 RA User Manual 12 Input Output Configuration T24 Toolkit Calibration EY DE jo Q A E Calibrate by applying known inputs zt LH 2S A jo e D E Number of Calibration Measurement Points Select the number of points you want to calibrate over The firmware version in this module allows you to calibrate using up to 10 measurement points Calibration Points o B TT Acquire 7 0 0 Acquire cquire 8 0 0 cquire cquire 9 0 0 Acquire cquire 10 0 0 cquire To start again Click Here To perform System Zero Click Here Input Calibrated Value 0 0529 0 0530
37. uch space is available and what battery life is required generally the bigger the battery the longer it will last Operating temperature range A batteries useable capacity is influenced by its operating temperature Generally the lower the temperature the lower their ability to provide charge Beware of the batteries specified operating range when considering a particular battery technology Self discharge Batteries are chemical devices and have a shelf life which needs to be considered in application where long battery life is required Typically an Alkaline has a battery life of 5 years Internal Resistance of battery Low internal resistance is important the higher the resistance the less useful life of the battery is available This is due to voltage drops caused during the high current phase of the measurement cycle Batteries with an internal resistance of less than 150mOhm will not require the additional inline capacitor module Connections to battery For the same reasons internal resistance must be low it is important to keep any voltage drops from the battery to the acquisition module as low as possible too Care must be taken in selecting the connection method between batteries and acquisition module For example cables should be kept as short and thick as possible Environmental Other considerations when selecting a connection method to the Batteries is the effect of vibration A standard battery holder is a poor choice in applica
38. wered up with an intermittent connection it may reset during pairing and result in poor or no communications Pair If the module cannot be paired because access to the power supply is either not possible or many modules share the same power supply Click Here for advanced connection options We now have successful communications with the base station so we can now pair with our device or we can select the Spectrum Analyser mode or Data Provider Monitor mode To connect to our device we will pair This is achieved by power cycling the device Pairing removes the need to know the radio settings of the device you are connecting to and also ensures that it is in a suitable state for configuration Pairing Procedure e Remove power from the acquisition module e Click the Pair button on the toolkit e You now have 10 seconds to re apply power to the acquisition module If you connect successfully the toolkit will change to the Information page If the pairing fails try again NOTE Pairing with the toolkit will not change the radio configuration settings of the connected device 5 Mantracourt Electronics Limited T24 RA User Manual Analyser T24 Toolkit Spectrum Analyser 3 h RA Planar 0 100 2400 2410 2440 2450 1 2 7 8 3 10 Frequency Channel Spectral Now 25 secs ago 2400 2440 2450 2 1 7 8 3 10 Frequency Channel
39. y a required engineering output shown in this screenshot value Engineering Units 1 9 Enter the required engineering unit output for the specified input value Calibrate Click this button to calculate and update the device calibration 15 Mantracourt Electronics Limited T24 RA User Manual Calibration Advanced T24 Toolkit Calibration Advanced NY 9 F 18 Calibrate by manual entry al dm o dd jo M Number of Calibration Points Rotary Limit This is an advanced feature used for Select the number of gain points you want to use TE rotary potentiometer applications Please see user manual before using a Calibration Points Gain Offset Gain Offset doo Tio oo o To po 2 ESC Ce CC 7 O CEO CNN 3 NNNM Cs CACA 0 0 4 NEN CS gt a 00 4 5 NENHMI 0 0 System Zero 0 0 This shows the current System Zero value that is subtracted from the input value before it is displayed You can manually change the value or set it to zero to remove the System Zero To reset calibration back to factory defaults Click Here In some circumstances it may not be possible to apply inputs in which case the calibration can be entered manually For example if a sensor manufacturer provides a calibration table for a cell it may be possible to calculate gains and offsets and enter these values into the Advanced Calibration page without having to connect the input sensor Items you can change Number of Calibration Enter the number of
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