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8500995 TT235-0600 User`s Manual

1. LOOP A v POLARITY TRI STATE PROTECTION BUFFERS c 2 meaeanenonrenna fea SoamECTIONS ae usso CONNECTIONS TO C TERMINALS WIRING CONNECTIONS g1 ISOLATED OUTPUT Pe aE EAA AN IE AN E Aie A gt The TT235 transmitter uses a 32 bit microcontroller and a high resolution 24 bit ADC to digitize the input signal and communicate to the output DAC via a serial digital pulse stream The digital communication stream is isolated via a pulse transformer and is received by the 16 bit output DAC which drives a 4 20mA process current Power for the isolated input side of the circuit is provided via an isolated flyback converter that operates in parallel with the output loop Setup involves selecting the input type selecting a filter level and scaling the input range endpoints to 4mA and 20mA at the output Output scaling can also be done in reverse to produce a reverse acting output signal The maximum over range output signal is approximately 24mA the under range signal is 3 5mA Refer to the block diagram above to gain a better understanding of how this transmitter works The input USB output power circuits are isolated from each other The USB port ground is common to the input circuit ground The USB port ground of most PC s is also common to the USB cable shield and earth ground Input sensors could be grounded or ungrounded For this reason it is recommended that USB signals be isolated when connected
2. RTD Resistance Thermometer Transmitter w USB This model includes two extra terminal connections at TB4 marked C which Connections provide a convenient wiring point for a sourcing wiring variation as shown below Internally these two terminals are connected in common with each other and do not connect to the internal circuit Use of these terminals in the wiring scheme allows external power to be connected local to the transmitter and form a sourcing output entity from this sinking output as shown LOCAL 24VDC MODEL TT2XX 0600 OPTIONAL POWER SUPPLY i OUTPUT POWER WIRING OPTIONAL SOURCING OUTPUT CONNECTIONS avec WITH POWER LOCAL TO TRANSMITTER i i TOP VIEW INPUT SIDE OUTPUT SIDE OUTPUT SIDE C jonm SoS TB1 TB3 Z4 RECEIVERLOAD INPUT OUTPUT T pe 6 LOOP a ey 2P im gl ace ae Y TWISTEDPAIR As ANY MODEL TT2XX 0600 7 8 R Loap INPUT COMMON 8 wan L_ 7 NF c OPTIONAL COMMON CONNECTIONS WITH LOCAL EXTERNAL 3 WIRE POWER A FORM A SOURCING OUTPUT RELATIVE TO THE REMOTE SINKING LOAD E iia a a A Sm Earth Ground Connections The transmitter housing is plastic and does not require an earth ground connection except where t
3. Model TT235 0600 RTD Resistance Thermometer Transmitter w USB Output Power In most installations the loop power supply will be local to either the transmitter or local to the remote receiver Common receiver devices include the input channel Connections of a Programmable Logic Controller PLC a Distributed Control System DCS or a panel meter Some receivers already provide excitation for the transmitter loop and these are referred to as sourcing inputs Other receivers that do not provide the excitation are referred to as sinking inputs and these will require that a separate power supply connect within the loop These types of receivers are depicted below MODEL TT2XX 0600 OUTPUT POWER WIRING SINKING OUTPUT CONNECTIONS WITH COMMON TWO WIRE TRANSMITTER CONNECTION TO SOURCING AND SINKING INPUT RECEIVERS POWER LOCAL TO THE RECEIVER Two Wire Output Connections to the Input Card of a Distributed Control System or Programmable Logic Controller TOP VIEW INPUT SIDE OUTPUT SIDE OUTPUT SIDE 24VDC POWER SUPPLY 1 DCS PLC SOURCING 24VDC Se INPUT CARD zm TB1 TB3 HEH i P 24VDC INPUT OUTPUT sjeta 6 LOOP TWISTED PAIR DCS PLC SINKING gt 5 LOOP 1 Jecceccce OR cocco INP
4. TT235 Configuration Software Lel z Eile Help Communication Setup IO Config Test Calibration CALIBRATION Input _nput Cal Instructions Outout TT235 Config Bg Connect a presicion resistance of 100 00 ohms to the transmitter input Click OK to submit calibration or Cancel to stop calibration Note All Platinum 100 Ohm RTDs Nickel RTD and 500 Ohm Resistance Input Types will be automatically calibrated OK Cancel CALIBRATION STATUS No Error Acromag Inc Tel 248 295 0880 RTD Resistance Thermometer Transmitter w USB Once you ve configured the transmitter you are ready to install it in the field as the transmitter has already been factory calibrated If you later encounter error that is out of specification you can click the Calibration tab to display the Calibration control page shown at left IMPORTANT This transmitter has already had its input and output channels factory calibrated with a high level of precision If you attempt to recalibrate the input or output channel you could degrade its performance if it is not completed properly or it is done using lower grade equipment Consider your decision to recalibrate carefully Calibration Input Before attempting to recalibrate the input channel make sure the selected Input Type on the I O Config page is the desired sensor input type you intend to calibrate Additionally make sure you write your selec
5. Order 4001 113 e USB A mini B Cable 4001 113 This is a 1 meter USB A miniB replacement cable for connection between the USB isolator and the transmitter It is normally included in the TTC SIP Note that software for all TT Series models is available free of charge online at www acromag com Acromag Inc Tel 248 295 0880 26 http www acromag com Model TT235 0600 RTD Resistance Thermometer Transmitter w USB USB OTG Cable USB OTG Cable Order 5028 565 e USB OTG Cable 5028 565 This is a 6 inch USB On The Go cable for connection between the USB A mini B Cable and a mobile phone or tablet It is required to use the Acromag Agility Config Tool App Note that the Acromag Agility Config Tool is available free of charge online at the Google Play store Acromag Inc Tel 248 295 0880 27 http www acromag com Model TT235 0600 SPECIFICATIONS Model Number Model TT235 0600 e Signal Transmitter e isolated RTD Input e Two Wire Powered e CE Approved e Includes UL cUL Class I Division 2 approvals Custom calibration to customer specifications can be added as a separate line item at time of purchase Input RTD Resistance Thermometer Transmitter w USB TT 235 0 6 0 0 n oe ol el Series _____ l TT Thin Transmitter i L Model Reserved Power 6 2 Wire Loop Powered Approvals 0 UL cUL Class 1 Division 2 Approvals Additional Appro
6. PC USB port and the input sensor 24 Check the input signal with respect to its range and reduce or increase it as required to drive the output within its linear operating range A fully Over Range or Under Range signal can be driven by a sensor fault such as an open or broken sensor lead If USB is not isolated check for a ground loop between a grounded sensor and earth ground of the PC USB port http www acromag com Model TT235 0600 RTD Resistance Thermometer Transmitter w USB Diagnostics Table POSSIBLE CAUSE POSSIBLE FIX Cannot Calibrate Input Channel Is input wired properly Check that input is wired to input terminals using correct polarity Input may be wired incorrectly to Verify that the sensor or resistance decade the input terminals box is wired to the transmitter correctly Refer to Sensor Input Connections for wiring sensors to the transmitter Service amp Repair Assistance This transmitter contains solid state components and requires no maintenance except for periodic cleaning and transmitter calibration and verification zero and full scale Its enclosure is not meant to be opened for access and can be damaged easily if snapped apart It is highly recommended that a non functioning transmitter be returned to Acromag for repair or replacement Acromag has automated test equipment that thoroughly checks and calibrates the performance of each transmitter and can restore firmware Pl
7. a reverse acting output response if desired Note Under range 3 5mA and over range 24mA is built into the output range by design If the I O Scaling Zero Scale and Full Scale points are chosen too close together performance will be degraded Submit I O Configurations Once you have made your configuration selections click the Send 1 O Config button to write them to the transmitter You can read the status of your sent message in the Status field Alternately you could click File in the upper left hand corner to save the configuration settings to a file on your PC for later reference At this point you can test the transmitter s operation by clicking on the Start Polling button of the TEST I O Section of the page to trigger the software to periodically read the input and display its value in the field to the right of the polling toggle button Note the simulated lamp next to the button flashes each time the input is sampled Click Stop Polling to stop polling the input 19 http www acromag com Model TT235 0600 Calibration Optional File Help Communication Setup 1 0 ConfigiTest Calibration CALIBRATION Input Input Cal Instructions Full Scale _Zero 5cale Output Output Cal Instructions Full Scale FACTORY SETTINGS Restore Factory Calibration Restore to Factory Default CALIBRATION STATUS No Error L
8. je LED next to the button will flash when poling is active lick Stop Poling to discontinue poling the input Acromag Inc Tel 248 295 0880 RTD Resistance Thermometer Transmitter w USB This transmitter can be configured and calibrated via its configuration software and a USB connection to a PC or laptop The configuration software is contained in a zip file that can be downloaded free of charge from our web site at www acromag com If you do not yet have a user account you will need to create one before the download becomes accessible The zip file will extract to an executable file which installs software to the Program Files Acromag directory on your computer Note You need administrator privileges on the PC you wish to install this software Once installed navigate to the Program Files Acromag directory and open the correct software for your particular model This software is also included on a CDROM bundled with the Configuration Kit TTC SIP see Accessories For this transmitter use the software named TT235 Config exe The initial configuration software window for this transmitter is shown at left Configuration information is divided across three pages as follows Communication Setup I O Config Test and Calibration Communication Setup First Connect to Transmitter Here e Select from connected transmitters and Open Close communication with them e Display the Model Se
9. scihensen tousses vendenses sence stucateadcsbessbaneetocudeseuesetacvnasseddains enaa Puteri 33 Agency ADDIOVANS sisiscsssaceccndsiee acd setuiedescussecateuaseanantauasisebutsseesuseecusdavteskustsecdlvebviesesentevaudebeesha 34 Reliability Preqgetion sisgiscaucsccwessnnetstedevarsecenndiveauchsedtdessctatsviwandd santdduevachandesusncussieeadesdaaseasetal 34 Configuration Controls seuss ies cuss ccaschsseedanvadechsScauuiis vacadunescdsbusnecied ecu ddagelu sawed enisbobannduaauedeensteacehs 34 REVISION HISTORY cicsvscavceevdessouctossdearccadseoucusscdavevdduesoeudodvanscoassooscaseceveesss oo All trademarks are the property of their respective owners IMPORTANT SAFETY CONSIDERATIONS It is very important for the user to consider the possible adverse effects of power wiring component sensor or software failures in designing any type of control or monitoring system This is especially important where economic property loss or human life is involved It is important that the user employ satisfactory overall system design It is agreed between the Buyer and Acromag that this is the Buyer s responsibility The information of this manual may change without notice Acromag Inc makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Further Acromag Inc assumes no responsibility for any errors that may appear in this manual and make
10. to check your input readings Click Start Polling to periodically read your input channel and validate its operation Click Stop Polling to stop polling the input channel Note the simulated red lamp next to the button flashes slowly when the software is polling the input channel CALIBRATION Calibrate the Input and or Output if Needed This transmitter has already been factory calibrated If you encounter excessive error you can click the Calibration tab to display the Calibration control page as shown at left To calibrate the Input or Output stage of this transmitter simply click the respective Cal Instructions button and follow the prompts Input Before calibration first select the Input Type to calibrate from the I O Config page and be sure to click the Send I O Config button On the Calibration page click the Input Cal Instructions button to begin input calibration When you click Zero Scale or Full Scale of the Input Calibration section you will be prompted to apply a specific resistance at the input terminals Once you have applied this resistance to the correct input pins click the OK button of the prompt to calibrate the input Output Click the Output Cal Instructions button to begin output calibration When you click Zero Scale or Full Scale of the Output Calibration section you will be prompted to measure the output signal and enter the measurement in the field provided
11. Acromag ka THE LEADER IN INDUSTRIAL I O USB Programmable DIN Rail Mount Thin Transmitter Model TT235 0600 Two Wire Transmitter RTD Resistance Input 4 20mA Output USER S MANUAL sore lt gt O86 UNECE Ons ourens SE lt Geesonece tou suueen s Ones VErEertoausoueces vuv DVOU gt gt B oa gt ACROMAG INCORPORATED Tel 248 295 0880 30765 South Wixom Road Fax 248 624 9234 Wixom MI 48393 2417 U S A email sales acromag com Copyright 2014 Acromag Inc Printed in the USA 8500 995H Data and specifications are subject to change without notice Model TT235 0600 RTD Resistance Thermometer Transmitter w USB Table of Contents GETTING STARTEDDESCRIPTION csicscsssicscscsascsescossdssedsnsiesscsavdsasdsnscotecssedsasses 4 K Y FOATUICS icceccsicscassecsscncscesccosvocseceseesseiacvencsdececcsuscterccebesendseuesondseiesevedcveveossesevesesstavvansvunsven 4 PPC NON secs aenaicdir pated icccicstdannn cd Gained cache ew a watt detec suae vans onan ceed einem 4 Mechanical Dimensions ssssisssssssisssssenssssssonssosesenisasssenisssesenisusnssssss ssesisussses sasssesisasssss sasssesi 5 DIN Rail Mounting amp Removal sssssssesssssssssesscossssoesssssecssesscossssoosssscssssesessssssossesscosssssesesse 5 ELECTRICAL CONNECTIONS essssssossesssossssssossesesossesssossssesssossesssossesossssesss 6 Sensor Input Connections sssssssssssosssesssesssessssosssossscsssossseoseeessse
12. Click the Submit Measurement button to calibrate the output Factory Settings Use only in case of trouble or for sanitation purposes e Restore a transmitter to its original factory calibration e Restore a transmitter to its initial factory configuration You can click the Restore Factory buttons if you ever misconfigure or miscalibrate a transmitter in such a way that its operation appears erratic Calibration Status Bottom of Window The Calibration Status bar at the bottom of the window will display status messages relative to calibration 15 http www acromag com Model TT235 0600 RTD Resistance Thermometer Transmitter w USB TECHNICAL REFERENCE OPERATION STEP BY STEP Connections This section will walk you through the Connection Configuration Calibration process step by step Before attempting to reconfigure or recalibrate this transmitter verify the following electrical connections Connect Input NU Connect Connect PC USB Output Power Configure Optional Calibrate I O Calibration Connections NOTE When calibrating the input source output meter and load resistor for current output must be accurate beyond the transmitter specifications or better than 0 1 As a general rule calibration equipment accuracy should be four times better than the rated accuracy you are trying to achieve with this transmitter Connect Input Connect a precision resistance decade box to the in
13. Click the Submit Measurement button to send the calibration to the transmitter If your output acts erratic or appears imprecise you may need to repeat input or output calibration being very careful to take accurate measurements and input correct signal levels If you are measuring a voltage across a load resistance make sure that you use the exact resistance when calculating the load current being measured Also when rescaling to a smaller sub range make sure that you have adequate input span Input spans that are too small will have diminished resolution and will magnify error The Restore Factory Calibration button resets transmitter and causes it to revert to its factory calibration without effecting user configuration Useful if there was an error during recalibration that degraded performance or the I O channel appears erratic The Restore Factory Default button restores a transmitter to its original factory state See Specifications Reference Test Conditions This includes calibration and configuration This control can be used as a sanitation tool to restore the transmitter to its initial configuration This field displays calibration status messages such as No Error No Device Connected Calibration Error Transfer Error and Timeout Error during calibration If you encounter an error you may have to repeat the calibration process 21 http www acromag com Model TT235 0600 RTD Resistanc
14. ECOMMENDED FOR BEST RESULTS GROUND THE CABLE SHIELD AT THE END OF THE CABLE CLOSEST TO THE GREATEST POTENTIAL SOURCE OF DISTURBANCE USUALLY THE SENSOR END Acromag Inc Tel 248 295 0880 OS cl I el DIN RAIL SPRING CLIP 7 http www acromag com Model TT235 0600 RTD Resistance Thermometer Transmitter w USB Sensor Input Connections INPUT SENSOR WIRING INPUT SENSOR WIRING 4 WIRE RTD 3 WIRE RTD BOTTOM VIEW BOTTOM VIEW INPUT SIDE INPUT SIDE E jm m SHIELDED SHIELDED CABLE aa CABLE JUMPER EA TO H SS ete 2 OEF 0E S S 3 4 4 H L L j OPTIONAL oje j OPTIONAL 3 SHIELD H SHIELD L GROUND a L GROUND SEE NOTE 1 SEE NOTE 2 gt t gt SEE NOTE 1 SEE NOTE 2 a gt NOTE LEAD WIRE RESISTANCE NOTE LEAD WIRE RESISTANCE LEAD WIRE RESISTANCE HAS A A T
15. HE LEAD WIRE RESISTANCE WILL A NEGLIGIBLE EFFECT ON THE RTD BE COMPENSATED FOR AS LONG MEASUREMENT WHEN USING A AS THE RESISTANCE OF THE AND 4 WIRE CONFIGURATION L LEADS ARE MATCHED ANY UNBALANCE WILL CONTRIBUTE A NZ SHIFT IN THE RTD MEASUREMENT NZ INPUT SENSOR WIRING INPUT SENSOR WIRING 2 WIRE RTD RESISTANCE DECADE BOX BOTTOM VIEW 4 WIRE CONFIGURATION 20110 view INPUT SIDE INPUT SIDE I j SHIELDED SHIELDED CABLE JUMPER CABLE Ton Ea ae 12 j y i 1 2 ee aa Creo Be gt m T E i gt Q EE a Se 3 4 3 4 H L L H L i OPTIONAL aje OPTIONAL Je SHIELD Hy SHIELD H L GROUND _L GROUND 0 SEE NOTE 1 SEE NOTE 2 Ly SEE NOTE 1 SEE NOTE 2 gt t z JUMPER TO L NOTE LEAD WIRE RESISTANCE NOTE LEAD WIRE RESISTANCE A LEAD WIRE RESISTANCE HAS A A THE RESISTANCE OF THE AND NEGLIGIBLE EFFECT ON THE LEAD WIRES WILL CONTRIBUTE A RESISTANCE MEASUREMENT WHEN POSITIVE SHIFT IN THE RTD USING A 4 WIRE CONFIGURATION MEASUREMENT THE DEGREE AMOUNT SHIFTED WILL BE THE RTD TEMPERTURE EQUIVALENT OF THE Jia N TOTAL RESISTANCE OF THE AND H LEADS CE i i NOTE 1 SENSOR GROUND THIS GROUND CONNECTION IS RECOMMENDED FOR BEST RESULTS IF SENSORS ARE INHERENTLY CONNECTED TO GROUND USE CAUTION AND AVOID MAKING ADDITIONAL GROUND CONNECTIONS WHICH COULD GENERATE GROUND LOOPS AND MEASUREMENT ERRORS DO NOT GROUND THE INPUT SENSOR IF UNIT IS CONNECTED TO A GROUNDED PC WITHOUT AN USB ISOLATO
16. R NOTE 2 SHIELDED CABLE GROUND SHIELDED CABLE IS RECOMMENDED FOR BEST RESULTS GROUND THE CABLE SHIELD AT THE END OF THE CABLE CLOSEST TO THE GREATEST POTENTIAL SOURCE OF DISTURBANCE USUALLY THE SENSOR END Acromag Inc Tel 248 295 0880 8 http www acromag com Model TT235 0600 RTD Resistance Thermometer Transmitter w USB Output Power Connect a DC power supply and load in series in the two wire loop as shown in the Connections drawing below This transmitter has an ANSI ISA Type II output in which the TBI INPUT TB2 INPUT transmitter s power and output signal share the same two leads and the transmitter output has a floating connection with respect to earth ground applied at the loop supply minus terminal e Output connections are not polarized The output and designation are for reference only with current normally input to Output and returned via Output current sinking e Loop supply voltage should be from 12 32VDC with the minimum voltage level adjusted to supply over range current to the load plus 11V MIN across the transmitter plus any transmission line drop e Variations in power supply voltage between the minimum required and a maximum of 32VDC across transmitter has negligible effect on transmitter accuracy e Variation in load resistance has negligible effect on output accuracy as long as the loop supply voltage is set accordingly e Note the traditional placement o
17. To remove a module from the DIN rail first separate the input terminal blocks from the bottom side of the module to create a clearance to the DIN mounting area A screwdriver can be used to pry the pluggable terminals out of their sockets While holding the module in place from above insert a screwdriver into the lower path of the bottom of the module to the DIN rail clip and use it as a lever to force the DIN rail spring clip down while pulling the bottom of the module outward until it disengages from the rail Tilt the module upward to lift it from the rail http www acromag com Model TT235 0600 RTD Resistance Thermometer Transmitter w USB TT2XX MODULE DIN RAIL MOUNTING AND REMOVAL TILT MODULE UPWARD TOWARDS RAIL AND HOOK ONTO UPPER LIP OF RAIL ROTATE MODULE DOWNWARD TO ENGAGE SPRING OUTPUT SIDE CLIP ONTO LOWER LIP OF RAIL TOP Kal VA fe 35mm DIN Rail C C TT2XX MODULE T Rail D SPRING CLIP g y By i gt BOTTOM SCREWDRIVER SLOT INPUT SIDE FOR REMOVAL FROM T TYPE DIN RAIL USE SCREWDRIVER TO REMOVE MODULE FROM RAIL AS SHOWN ELECTRICAL CONNECTIONS A WARNING EXPLOSION HAZARD Do not disconnect equipment unless power has been removed or the area is known to be non hazardous WARNING EXPLOSION HAZARD Substitution of any components may impair suitability fo
18. UT CARD SS T int ANY MODEL TT2XX 0600 7 8 TB2 TB4 c c RCV RCV INPUT COMMON lt gt Z SOURCING INPUT RECEIVER SINKING INPUT RECEIVER The 24V DC Excitation is The 24V DC Excitation is Provided Provided by the Card by a Separate Power Supply LA G q F ezn WARNING For compliance to applicable safety and performance standards the use of twisted pair output wiring is recommended Failure to adhere to sound wiring and grounding practices as instructed may compromise safety performance and possibly damage the transmitter TIP Ripple amp Noise Power supply ripple at 60Hz 120Hz is normally reduced at the load by the transmitter but additional filtering at the load can reduce this ripple further For large 60Hz supply ripple connect an external 1uF or larger capacitor directly across the load to reduce excessive ripple For sensitive applications with high speed acquisition at the load high frequency noise may be reduced significantly by placing a 0 1uF capacitor directly across the load as close to the load as possible TIP Inductive Loads If the two wire current loop includes a highly inductive load such as an I P current to pressure transducer this may reduce output stability In this case place a 0 1uF capacitor directly across the inductive load and this will typically cure the problem Acromag Inc Tel 248 295 0880 10 http www acromag com Model TT235 0600 Output Power
19. a ground loop that would inhibit setup and calibration and may even damage the transmitter This is why an isolated USB connection is recommended The use of an isolator can be avoided if a battery powered laptop PC is used to connect to the transmitter and the laptop has no other earth ground connection either directly or via a connected peripheral Acromag Inc Tel 248 295 0880 12 http www acromag com Model TT235 0600 RTD Resistance Thermometer Transmitter w USB CONFIGURATION SOFTWARE Quick Overview Android qa N fl 2 56 PM k4 BE Acromag Agility VIEW WIRING DIAGRAM Wiring Diagram CONNECT TO DEVICE Selected Device T 4 060 CONNECT SB 11236 0600 DIAGNOS CONFIGURATION CENTER CALIBRATION INPUT OPTIONS Input Type Input Filtering O SCALING 4 00 mA 4mA Out 20 00 mA 20mA Out Device status Configuration Successful Acromag Inc Tel 248 295 0880 This transmitter can be configured and calibrated via the Acromag Agility Config Tool App This software can be downloaded free of charge from the Google Play store at play google com To connect to this transmitter a USB OTG On The Go cable Acromag 5028 565 and USB A to Mini B cable Acromag 4001 113 are required This app is compatible with Android devices using Ice Cream Sandwich 4 0 or later The initial connection screen of the app is shown at left Once a device is connected the main
20. abmaniganneneeanausinens 23 TROUBLESHOOTING wissscecstscesassisiesciacstavniadaicesteceusseiecsiuuntacniswedecsveuesesaisenne 24 BIETA OAA OM e C E E T 24 Service amp Repair Assistance cscccssncsscessvccsdvececveceeseccecesenctecssctestceessstevescoceeccssevessssvendcsessedecs 25 ACCESSORIES sesssessosssssssssssosesosussesueroravosessnsvinosavos sorsna neoads s s saroe soso sessi 26 Software Interface Package ic ssssisdesssecssccsiaasstesincessvccwvanceacnvandesdieunsvesseavdvssuwsnsvanssanseasdeenevassea 26 USB Isolator siisi anesan EEE EEEE E E E E E E 26 Acromag Inc Tel 248 295 0880 2 http www acromag com Model TT235 0600 RTD Resistance Thermometer Transmitter w USB USB A B Ca bolle saratie irena rS ENEEIER cocd vavedesseeedevectaewcscdtes cavddvactes 26 USB A Mini B Cable cisicieccecexedacs fasavecccccelsek shaawedscwadeddedosetedvacsoedeslaaweiscowdeddsdavcnedvcusaeseneisawess 26 USB OTG Cable ivi ienscidccccas EEES TELA E ANAT O ESAT L AAO EEN ALAO AAE 27 SPECIFICATIONS 3 ccssssccasccssuvecnarsnniarevenniensiaenaacresenesssasivaesreoauieartirevenseuiew O Model NUMBER i scisaisncys tsa sisscawnsenarsbasecinasedccns iore ninie aneian e inaenea i Eain aaike 28 eE EEA T A E E EE E TT 28 DUko 1T AEE AA AAE E T TA I 30 USB Interface ar EAE aia 32 E closure amp PRYSICA scisiicsiccccweuncecassuanenvececrsssacauasswapeeebesatacnenues caus suacecuaswasdcescausstcauunsdenscuusens 33 Environmental sissies eis scccsss satan
21. available software control of this transmitter Acromag Inc Tel 248 295 0880 34 http www acromag com Model TT235 0600 RTD Resistance Thermometer Transmitter w USB REVISION HISTORY The following table details the revision history for this document Release Date Version EGR DOC Description of Revision 27 SEP 2013 JMO KLK Initial Acromag release Updated Simplified Diagram Updated Input Reference Test Conditions was Four wire configuration 12 NOV 2013 C JMO KLK Added MTBF Reliability Prediction 16 OCT 2013 JMO KLK 30 NOV 2013 JMO ARP Table 1 Input Ranges amp Accuracy Note 1 modified 16 DEC 2013 E JEB ARP Removed P O Box from address e Added cULus Mark to this model removed pending e Updated Configuration section Added instructions for new Input Ranges Updated Input Range table Added resistance Input Ranges CAP ARP 25 900 2250 and 4500 Ohms Updated accuracy JMO ARP Updated Input Range table Note 1 Low input resistance doesn t trigger break detect when Resistance Input Type selected Updated Input Resolution table Added data for new Input Ranges 31 JUL 2014 CAP ARP Added UL caution symbols statements 4 NOV 2014 JEB ARP Added Acromag Agility Config Tool Quick Guide Added USB OTG cable in Accessories Section 21 FEB 2014 Acromag Inc Tel 248 295 0880 35 http www acromag com
22. be calculated based on the table above For 2000 Platinum multiply the resistances in the table by 2 For 5000 Platinum multiply the resistances in the table by 5 For 1000Q Platinum multiply the resistances in the table by 10 NOTE Alpha a is used to identify the RTD curve and its value is derived by dividing the sensor resistance at 100 C boiling point of water minus the sensor resistance at 0 C freezing point of water by the sensor resistance at 0 C then by 100 C a R100 C RO C RO C 100 C For Pt1009 a 0 00385 this is 38 50 100 00 100 C or 0 003850 0 C Acromag Inc Tel 248 295 0880 22 http www acromag com Model TT235 0600 BLOCK DIAGRAM TT235 0600 SIMPLIFIED SCHEMATIC FILTERING AND DETAIL OMITTED FOR CLARITY 4wiRE SWIRE 2 WiRE H S 6 3 HH re lt gt i seat Co 8 H TB2 UE ST aE 2 WIRE amp 3 WIRE CONFIGURATIONS gt aso REQUIRE JUMPER CONNECTIONS AS INDICATED How It Works Key Points of Operation Loop Powered e Input is Isolated from Output e Input circuit is common to USB ground e USB powers a portion of the input circuit when connected but not the output Acromag Inc Tel 248 295 0880 23 RTD Resistance Thermometer Transmitter w USB ISOLATED OUTPUT 3 XV TB3 TWO WIRE OUTPUT 2 7 LOOP aL a 12 36VDC lt 490 16 BIT DAC EARTH 1 GROUND TI RLoap
23. c Status Device opened successfully Reset Device 7235 Configuration Software File Help Communication Setup 1 0 Config Test Calibration CONFIGURE I O Glick Start Polling to poll the input and display its value The LED next to the button will flash when poling is active Glick Stop Polling to discontinue poling the input Get I O Config Input Options Input Type RTDPt100 lt Input Range alpha 0 00385 Configuration Three wire x InputFitering Medium 160 miliseconds x Output Options Break Direction Over range x Temperature Units Celsius Fahrenheit Kelvin 1 0 Scaling 200 00 C 4mAOut 850 00 C 20mA Out Status No Device Connected Send I O Config TEST 1 0 StartPoliing Temperature Go Acromag Inc Tel 248 295 0880 RTD Resistance Thermometer Transmitter w USB At this point you can click the I O Config Test tab to begin configuring the transmitter or to optionally test its operation The I O Config Test window is the second image shown at left When you click the I O Config Test tab the software retrieves the transmitter s current configuration and displays it similar to the second image shown at left If you are connected to a transmitter the initial I O Config page represents the current configuration of the connected transmitter before making changes Otherwise if you have loaded t
24. c Center Tab Verify Input operation e Select the polling indicator by tapping the Indicator button e Start polling by tapping the Start Polling button Utility Page Reboot or Restore Settings e Tap the Gear in the Action bar to access the Utility Page e You can tap the Restore Reset Factory utility buttons to get out of trouble if you ever misconfigure or miscalibrate a transmitter 13 http www acromag com Model TT235 0600 Quick Overview Windows Click Open to connect to the TT235 0600 and the software will look similar to the gt EE File Help Communication Setup 1 0 ConfigfTest Calibration DEVICE SELECT Device TT235 0600 0000001 Mi Model TT235 0600 Serial Number 0000001 Manufacturer Acromag Inc Status Device opened successfully Reset Device L TT235 Configuration Software 2 meena File Help Communication Setup 1 0 Config Test Calibration CONFIGURE 1 0 Get I O Config Input Options Input Type RTD Pt100 X Input Range alpha 0 00385 Configuration Three wire x Input Fitering Medium 160 miliseconds z Output Options Break Direction Over range z Temperature Units Celsius Fahrenheit Kelvin 1 0 Scaling 200 00 C 4mA Out 850 00 C 20mA Out Status No Device Connected Send 1 0 Config TEST I O Start Poling Temperature i lick Start Poling to poll the input and display its value
25. ction should an output wire break Extra connection screws at the output allow it to be optionally wired for a sourced 4 20mA output configuration see Output Wiring Acromag Inc Tel 248 295 0880 4 http www acromag com Model TT235 0600 Mechanical Dimensions Modules may be mounted to 35mm T type DIN rail 35mm type EN50022 and side by side on 12 5mm 0 5 inch centers NOTE IEC Safety Standards may require that this module be mounted within an approved metal enclosure or sub system particularly for applications with exposure to voltages greater than or equal to 75VDC or 50VAC RTD Resistance Thermometer Transmitter w USB DIMENSIONS ARE IN MILLIMETERS INCHES DIN Rail Mounting amp Removal Acromag Inc Tel 248 295 0880 Refer to the following figure for mounting and removing a module from the DIN rail Mounting A spring loaded DIN clip is located on the input side bottom The rounded edge of the output side bottom allows the module to tilt upward so that it may be lifted from the rail when prying the spring clip back with a screwdriver To attach a module to T type DIN rail angle the top of the module towards the rail and place the top groove of the module over the upper lip of the DIN rail Firmly push the module downward towards the rail until it snaps into place Removal
26. d type e Ifyou select Two wire the sensor lead wire resistance will not be compensated for and the total resistance of the lead wires will contribute a positive shift in the sensor measurement 18 http www acromag com Model TT235 0600 Configuration 17235 Configuration Software ex File Help Communication Setup I O Config Test Calibration CONFIGURE I O Get 1 0 Config Input Options Input Type RTD Pt100 Input Range alpha 0 00385 Configuration Three wire ad J Input Filtering Medium 160 milliseconds x Output Options Break Direction _ Over range Mi Temperature Units Celsius Fahrenheit Kelvin 1 0 Scaling 200 00 C 4mA Out 850 00 C 20mA Out Status No Device Connected Send 1 0 Config TEST I O _ Start Poling Temperature Glick Start Polling to poll the input and display its value The LED next to the button will flash when poling is active Click Stop Poling to discontinue poling the input HELP You can press F1 for Help on a selected or highlighted field or control You can also click the button in the upper right hand corner of the window and click on a field or control to get a Help message pertaining to the item you clicked on NOTE Under range 3 5mA and over range 24mA capability is built into the output range by design See Output Specifications for more detail Acromag I
27. e Thermometer Transmitter w USB RTD Resistance versus Temperature Temperature in Ohms 1000 Platinum RTD 1200 100 TEMP C Nickel RTD Copper RTD a 0 006872 a 0 004274 a 0 00390 a 0 003911 18 520 17 396 17 260 17 079 39 723 38 903 38 789 38 648 60 256 59 721 59 638 59 543 80 306 80 044 80 000 79 952 84 271 84 061 84 026 83 988 88 222 88 065 88 038 88 010 92 160 92 056 92 038 92 019 96 086 96 034 96 025 96 015 100 000 100 000 100 000 100 000 103 903 103 954 103 963 103 973 107 794 107 896 107 915 107 934 111 673 111 827 111 855 111 883 115 541 115 745 115 783 115 821 119 397 119 652 119 700 119 747 123 242 123 547 123 605 123 661 127 075 127 429 127 498 127 563 130 897 131 300 131 379 131 454 134 707 135 160 135 249 135 333 138 506 139 007 139 107 139 200 157 325 158 066 158 222 158 360 175 856 176 828 177 044 177 226 194 098 195 294 195 574 195 799 212 052 213 463 213 811 214 079 229 716 231 336 231 756 232 065 247 092 248 912 249 409 249 758 264 179 266 192 266 769 267 157 280 978 283 175 283 836 284 263 297 487 299 862 300 611 301 075 313 708 316 252 317 094 317 594 329 640 332 346 333 284 333 820 345 284 348 143 349 181 349 752 360 638 363 644 364 787 365 391 375 704 378 848 380 099 380 736 390 481 393 756 395 119 395 788 NOTE 2000 500Q and 1000Q Platinum RTD resistances can
28. earth ground to the USB shield and signal ground Cable Length Connection Distance 5 0 meters maximum Driver No special drivers required Uses the built in USB Human Interface Device HID drivers of the Windows Operating System Windows XP or later versions only http www acromag com Model TT235 0600 Enclosure amp Physical Environmental RTD Resistance Thermometer Transmitter w USB General purpose plastic enclosure for mounting on 35mm T type DIN rail Dimensions Width 12 5mm 0 5 inches Length 114 5mm 4 51 inches Depth 99 0mm 3 90 inches Refer to Mechanical Dimensions drawing 1 O Connectors Removable plug in type terminal blocks rated for 12A 250V AWG 26 12 stranded or solid copper wire Program Connector USB Mini B type 5 pin See USB Interface Case Material Self extinguishing polyamide UL94 V O rated color light gray General purpose NEMA Type 1 enclosure Circuit Board Military grade fire retardant epoxy glass per IPC 4101 98 with humi seal conformal coating DIN Rail Mounting Transmitter is normally mounted to 35x15mm T type DIN rails Refer to the DIN Rail Mounting amp Removal section for more details Shipping Weight 0 5 pounds 0 22 Kg packed These limits represent the minimum requirements of the applicable standard but this product has typically been tested to comply with higher standards in some cases Operating Temperature 40 C to 80 C 40 F to 176 F S
29. ease refer to Acromag s Service Policy and Warranty Bulletins or contact Acromag for complete details on how to obtain repair or replacement Acromag Inc Tel 248 295 0880 25 http www acromag com Model TT235 0600 ACCESSORIES RTD Resistance Thermometer Transmitter w USB Software Interface Package USB Isolator USB A B Cable USB A mini B Cable Software Interface Package Configuration Kit Order TTC SIP e USB Signal Isolator e USB A B Cable 4001 112 e USB A mini B Cable 4001 113 e Configuration Software CDROM 5040 944 This kit contains all the essential elements for configuring TT230 amp TT330 family Transmitters Isolation is recommended for USB port connections to these transmitters and will block a potential ground loop between the PC and a grounded current loop A software CDROM is included that contains the Windows software used to program the transmitter USB Isolator Order USB ISOLATOR e USB Signal Isolator e USB A B Cable 4001 112 e Instructions 8500 900 This kit contains a USB isolator and a 1 meter USB A B cable for connection to a PC This isolator and cable are also included in TTC SIP see above USB A B Cable Order 4001 112 e USB A B Cable 4001 112 This is a 1 meter USB A B replacement cable for connection between a PC and the USB isolator It is normally included with the TTC SIP Software Interface Package and also with the isolator model USB ISOLATOR USB A mini B Cable
30. esistance Thermometer Transmitter w USB Output Ripple Noise Less than 0 1 of output span Note High Speed Acquisition Additional filtering at the load is recommended for sensitive applications with high speed acquisition rates High frequency noise is often reduced or eliminated by placing a 0 1uF capacitor directly across the load For excessive 60Hz supply ripple with current output a 1uF or larger bulk capacitor is recommended at the load Transmitter includes a USB socket for temporary connection to a PC or laptop for the purpose of setup and reconfiguration USB isolation is required when connected to a grounded input sensor see IMPORTANT note on the left During reconfiguration and calibration the transmitter receives power from both the USB port and the output loop Both power sources must be present to calibrate the transmitter CAUTION Do not attempt to connect USB in a hazardous environment Transmitter should be configured and calibrated in a safe environment only Data Rate USB v1 1 full speed only at 12Mbps Up to 32K commands per second USB 2 0 compatible Transient Protection Transient voltage suppression on USB power and data lines Inrush Current Limiting Includes series inrush current limiting at USB power USB Connector 5 pin Mini USB B type socket Hirose Electric UX60 MB 5S8 o fown ooo 2o oo Differential Data Note Most Host Personal Computers except battery powered laptops will connect
31. f earth ground in the current loop The transmitter output minus varies off this ground by the voltage drop in the load resistance and lead wire MODEL TT2XX 0600 OUTPUT POWER WIRING TRADITIONAL LOOP POWERED SINKING OUTPUT CONNECTIONS INPUT SIDE TOP VIEW OUTPUT SIDE OUTPUT SIDE 3 dm m THIS TRANSMITTER IS CURRENT LOOP POWERED SHIELDED J 4 20mA TBS 4 TWISTED PAIR mar OUTPUT 6 hhooccoody DC SUPPLY Ek 12 32V ANY MODEL TT2XX 0600 La smt TB4 Loap L EARTH COMMON D NOTE OUTPUT TERMINALS ARE NOT POLARIZED AND PLUS amp MINUS LABELS ARE FOR REFERENCE ONLY OPTIONAL WIRING TERMINALS C ARE HELD IN COMMON AND USED FOR SOURCING LOOP WIRING A SEE OPTIONAL OUTPUT WIRING DIAGRAM The traditional loop powered sinking output connections are shown above Shielded twisted pair wiring is often used at the output to connect the longest distance between the field transmitter and the remote receiver as shown The output of this transmitter fluctuates relative to earth ground by the voltage drop in the load and connection wire This makes it flexible in the way it connects to various Receiver devices Acromag Inc Tel 248 295 0880 9 http www acromag com
32. he configuration from a saved a file or if you have made changes to any fields you can click the Get I O Config button to retrieve the transmitter s current configuration NOTE If you make any changes to the selections indicated the only way to preserve your changes is to write them to the transmitter by clicking the Send I O Config button after completing your selections or save them to a file by opening the File menu in the upper left hand corner of the window Select the Input Type e fyou select a RTD type the output will be linear with respect to the sensor temperature e If you select Resistance the output will be linear with respect to the input resistance not temperature and no special linearization will be performed Select the Input Range e f RTD Input Type is selected then the Input Range menu will display RTD alpha values Refer to RTD Resistance versus Temperature section for an explanation of alpha value e If Resistance Input Type is selected then the Input Range menu will display resistance ranges Select the lowest resistance range that can support the input resistance full scale Select the Configuration e Ifyou select Four wire the sensor lead wire resistance will have a negligible effect on the sensor measurement e Ifyou select Three wire the sensor lead wire resistance will be compensated for as long as the and L leads are of the same length size an
33. he optional input cable shield is terminated on the transmitter If the transmitter is mounted in a metal enclosure an earth ground wire connection to the metal enclosure s ground terminal green screw is usually required using suitable wire per applicable codes See the Electrical Connections Drawing for Output Power connections and note the traditional position of earth ground for the two wire output current loop Earth ground is normally applied at the output loop power minus terminal and in common with the loop load or loop receiver minus The Type II transmitter output terminals have a floating connection relative to earth ground and their potential varies with the voltage drop in the load and connection wire e Respect the traditional position of earth ground in a two wire current loop and avoid inadvertent connections to earth ground at other points in the output circuit which would drive ground loops and negatively affect operation The input circuit is isolated and may additionally be earth grounded e A USB isolator is recommended when configuring or calibrating a transmitter to avoid the ground loop that occurs if the input sensor is also earth grounded PC USB ports are commonly earth grounded and make contact with both the USB signal and shield ground which is held in common to the input circuit ground of the transmitter Acromag Inc Tel 248 295 0880 11 http www acromag com Model TT235 0600 RTD Resistance Thermometer Transm
34. iltering plus digital filtering optimized and fixed per input range and filter selection within the X A ADC See Normal Mode Noise Rejection and Output Response Time Input Excitation Current Set to 0 1mA 0 2mA 0 5mA 1mA typical for Inputs 10000 5000 2000 1000 amp Nickel amp Copper respectively Drift over temperature has negligible error contribution due to ratiometric measurement technique Input Response Time See output response time Input Linearization RTD Inputs Preset for input Acromag Inc Tel 248 295 0880 28 http www acromag com Model TT235 0600 RTD Resistance Thermometer Transmitter w USB Input Table 1 Input Ranges amp Accuracy Input Sensor Ranges and Accuracy at Reference Test Conditions Input Type C or Q Spans in Range Typical Accuracy Pt 1000 200 C to 850 C 0 25 C Pt 2000 200 C to 850 C 0 30 C Pt 5000 200 C to 850 C 0 50 C Pt 10000 200 C to 850 C 1 00 C 1 y 7 se Note These ranges only available on device firmware revision D or later Analog to Digital Converter ADC Input utilizes a 24 bit A ADC converter with only the first 16 bits used see Input Resolution below Input Resolution The ADC of this model divides the input signal range into a number of parts that can be calculated using the expression for ADC counts as 32768 Rin Gain 499 with Gain 1 for all input types except Copper RTD which is set to Gain 16 Rin is the resistance of the in
35. ire input sensors require jumper For three wire sensors including resistive elements a copper jumper wire must be connected between input pins 1 and 4 and H Two wire input sensors require jumpers For a two wire sensor including resistive elements a copper jumper wire must be connected between input pins 4 and 5 and L as well as pins 1 and 4 and H Four wire configuration eliminates error associated with lead wire resistance A four wire configuration allows the input sensor to be accurately measured without having to compensate for the resistance of the lead wires RTDs are typically measured by passing an excitation current through the RTD element and relating the measured voltage drop across the RTD element with a corresponding temperature Because the lead wires to the RTD element have intrinsic resistance a voltage drop is created in the lead wires in addition to the voltage drop across the RTD element By using two dedicated wires to directly measure only the RTD element the voltage drop created by the resistance of the lead wires is removed from the measurement altogether BOTTOM VIEW INPUT SIDE INPUT SIDE OUTPUT SIDE 2 TB1 TB3 OUTPUT INPUT SENSOR TB4 TB2 N MODEL TT235 0600 7 OPTIONAL i SHIELD GROUND SEE NOTE NOTE SHIELDED CABLE GROUND SHIELDED CABLE IS R
36. itter w USB USB Connections This transmitter is configured and calibrated via configuration software that runs on Windows based PCs connected to the transmitter via USB Windows XP or later version required Refer to the following drawing to connect a PC to the transmitter for the purpose of configuration and calibration using this software TT SERIES USB TRANSMITTER CONNECTIONS USED FOR CONFIGURATION AND CALIBRATION OF THE TRANSMITTER IN A SAFE OR ORDINARY LOCATION LOAD Q ees NOTE USER MUST MEASURE e TB3 6 OUTPUT POWER SIGNAL TO PERSONAL COMPUTER CALIBRATE OUTPUT RUNNING WINDOWS OS q HP TBA TBS COM OUTPUT HOST PC RUNNING STS ACROMAG CONFIGURATION USB MiniB MALE SOFTWARE O DC POWER PPLY ore 32V MODEL TT2XX TRANSMITTER Eon USB MiniB Socket Front Panel of Module a HOST TO HOST USB PORT U CABLE Model 4001 113 J USB TB TBI o al Oo INPUT INPUT a E A USB A MALE HOST USB SERIAL PORT CONNECTOR 1 METER USB CABLE USB B MALE Acromag USB A MALE AT BACK OF PC Model 4001 112 ie a E T oo Refer to Configura
37. librate the transmitter Tip To measure current you can alternatively connect a voltmeter across a precision load resistor and then accurately read the output current as a function of the IR voltage drop produced in the resistor recommended For current outputs Currently calibrating 4 20mA Output Zero Scale Zero Scale Measurement mA Submit Measurement Cancel Calibration Factory Settings Calibration Status Acromag Inc Tel 248 295 0880 RTD Resistance Thermometer Transmitter w USB Calibration Output Before attempting to recalibrate the output channel make sure you write your selections to the transmitter by clicking the Send I O Config button Click the Output Cal Instructions button to begin output calibration and enable the Output Zero Scale and Full Scale buttons For output zero scale endpoint adjustment click the Zero Scale button to open the zero scale configuration popup Use a current meter or digital volt meter to accurately measure the transmitter output signal and enter the measurement in the input field provided Click the Submit Measurement button to send the calibration to the transmitter For output full scale endpoint adjustment click the Full Scale button to open the full scale configuration popup Use a current meter or digital volt meter to accurately measure the transmitter output signal and enter the measurement in the input field provided
38. ly 24mA Under range limit is approximately 3 5mA Output Range 4 to 20mA DC nominal range with under range capability down to 3 5mA and over range capability up to 24mA The output signal is linear with respect to the measured temperature or resistance of the RTD or resistive element Output Accuracy Accuracy is better than 0 05 of output span typical 0 1 maximum for input spans 10 to 100 of full range Relative accuracy varies with calibrated input and output span Accuracy includes the combined effects of repeatability terminal point conformity and linearization but does not include sensor error Output Ambient Temperature Drift Includes the combined effects of zero and space drift over temperature and is better than 50ppm C 0 0050 C over the ambient temperature range for reference test conditions see Input Specifications Acromag Inc Tel 248 295 0880 30 http www acromag com Model TT235 0600 Output RTD Resistance Thermometer Transmitter w USB Output DAC Resolution Output DAC is 16 bit and its output current is approximated via the expression programmed_count 65536 24mA The min loop current is 3 5mA typical which is approximated via a DAC program count of 9120 Likewise 4mA corresponds to a count value of 10923 and 20mA to 54613 Thus for the 4 20mA output range we have an output resolution of 54613 10923 or 1 part in 43690 The effective I O resolution of this transmitter will be
39. nc Tel 248 295 0880 RTD Resistance Thermometer Transmitter w USB Select the Input Filtering Select the level of digital filtering to apply to the input channel as None Low Medium or High The respective I O response times are indicated in parenthesis next to the filter selection Note that higher filter levels results in lower average noise but with slower I O response times Select the Break Direction Upon sensor burnout or a broken sensor lead you can select Under range to send the output to its under range limit or Over range to send the output to the over range limit Note that outputs can be reverse acting but in the case under range and over range remain normal Under range and over range limits are outside the nominal output range selected Select the Temperature Units Select the temperature units to use in the Configuration Software You may select Celsius Fahrenheit or Kelvin Enter the I O Scaling values You may rescale the input range to use only a portion of the input range to drive the output if desired Be careful not to reduce the input range too much as resolution will be proportionally diminished and noise error magnified In the corresponding I O Scaling field enter the input signal minimum zero value to correspond to the output range Zero Scale value 4mA Also set the input range Full Scale 20mA You can optionally swap I O Scaling values to configure
40. or for this reason and for increased safety and noise immunity Use an isolator like the Acromag USB ISOLATOR Otherwise use a battery powered laptop to configure the transmitter which does not normally earth ground its USB port Software Fails to Detect Transmitter Bad USB Connection Recheck USB Cable Connection USB has not enumerated the transmitter Use the reset button on the Acromag USB isolator to trigger re enumeration of the transmitter or simply unplug re plug the USB cable to the transmitter Communication or power was interrupted while USB was connected with the configuration software running Close the current connection with the software select and re open the transmitter for communication or simply exit the configuration software and restart it For an input step the output appears to make 2 steps to reach its final value For a step change in the input the ADC requires 2 input samples to fully characterize the input signal The ADC requires two samples to fully characterize the input signal and this is evident when using a scope to examine the output transition in response to a step change at the input which makes two steps in its transition to its final level Output goes to Over Range 24mA or Under Range Limit 3 5mA This indicates that either the input signal is out of range or a sensor lead has broken It can also occur due to contention between earth ground at the
41. ply and 20mA loop current 6500 assuming negligible line drop Compute Rioag Max Vsupply 11V 0 020A for 20mA full scale output current Refer to the following table Max Rigag W 20mA amp No Line Drop Ideally it should be possible to drive the over scale current of 24mA to the load and this would yield a maximum load resistance of 5400 for 24mA of loop current and a 24V loop supply Acromag Inc Tel 248 295 0880 31 http www acromag com Model TT235 0600 Output USB Interface A IMPORTANT The input of this transmitter is isolated from its output and can be connected to grounded or un grounded input sensors However the transmitter s input circuit ground is connected in common to the USB power signal shield ground This will in turn make a connection to earth ground at the PC when directly connected to the USB port of a PC without using an isolator Failure to connect USB without isolation would connect the 1 25V input bias supply to input ground if the sensor is also earth grounded This will interfere with operation and cause the output to shift For this reason USB isolation is strongly recommended when connecting to a PC Otherwise in the absence of USB isolation and when connected to a grounded input sensor a battery powered laptop could be used to connect to the transmitter as the laptop does not normally connect to earth ground Acromag Inc Tel 248 295 0880 32 RTD R
42. portion of the app will launch The screen is divided into three tabs for this model A short description of each tab follows Connection Screen Setup DEVICE SELECT First Connect to Unit Here e Select from connected transmitters by tapping the Select Device button This will bring up a list of attached devices Select the desired device and tap the Connect button to open the device e To view wiring diagrams of a particular transmitter tap the Wiring Diagram button and select the desired model Swipe left or right to view more diagrams No connection is required to view the diagrams e Android requires user permission to access external hardware If the Device List displays No Device Permission select this device and when prompted to give permission to access the USB device tap OK Configuration Tab CONFIGURE I O e Once connected the app will automatically read your transmitter and display its current configuration e Changing any option on this page will send the changes to the transmitter instantly The device status at the bottom of the page will report if the changes were sent successfully Calibration Tab Calibrate the Input and or Output if Needed e On screen instruction will guide the setup to properly calibrate the transmitter After completing instructions tap the Calibrate button e The device status at the bottom of the page will report if the calibration was sent successfully Diagnosti
43. put at TB1 and TB2 according to the RTD configuration you will be using Refer to Sensor Input Connections The resistance source must be adjustable over the range desired for zero and full scale All input types share the same wiring and procedure for the purpose of calibration Calibration amp Configuration Connections Connect Output Power Refer to Output Power Connection section and wire an output current loop to the transmitter as illustrated You will need to measure the output current accurately in order to calibrate the transmitter You can connect a current meter in series in this loop to read the loop current directly not recommended Alternatively you could simply connect a voltmeter across a series connected precision load resistor in the loop and accurately read the output current as a function of the IR voltage drop produced in this resistor recommended In any case be sure to power the loop with a voltage that is minimally greater than the 11V required by the transmitter plus the IR drop of the wiring and terminals plus the IR drop in the load To computer the IR drop be sure to use a current level that considers the over scale current up to 24mA Loop Power Supply Voltage Make sure your voltage level is at least 11V plus 0 020 load_resistance Ideally it should be great enough to drive the 24mA over range current into your load i e up to 11V 0 024 Rload assuming line drop is negligible and the maximum possible o
44. put the sensor An indication of nominal input resolution is expressed as the number of parts between the input range low and high endpoints shown in the following table Input Resolution per Input Type Input Type a Alpha ADC Input Resolution 0 00385 1 part in 24425 0 00390 1 part in 24714 0 003911 1 part in 24812 0 00392 1 part in 24868 0 006872 1 part in 26569 0 004274 1 part in 19384 Notes Alpha a is used to identify the RTD curve Refer to RTD Resistance versus Temperature section for an explanation of alpha value Pt 1000 2000 5000 10000 This transmitter allows a portion of the nominal input range to be rescaled to the output range selected However the effective input resolution will be proportionally diminished as the input range span is reduced below its nominal span The effective I O resolution of this transmitter will be the lowest resolution of the ADC itself or the output DAC output DAC is 1 part in 46984 for 4 20mA Acromag Inc Tel 248 295 0880 29 http www acromag com Model TT235 0600 Input Output RTD Resistance Thermometer Transmitter w USB Input Zero and Full Scale Adjustment Nominal input ranges are selectable and range endpoints are adjustable over the full range of input temperature resistance Input Zero Scale and Full Scale selections must be within the nominal range and will be mapped to 0 and 100 at the output Keep in mind that the input resolution diminishe
45. r Class I Division 2 WARNING EXPLOSION HAZARD The area must be known to be non hazardous before servicing replacing the unit and before installing Wire terminals can accommodate 12 26 AWG solid or stranded wire Input wiring may be shielded or unshielded type Ideally output wires should be twisted pair Terminals are pluggable and can be removed from their sockets by prying outward from the top with a flat head screwdriver blade Strip back wire insulation 0 25 inch on each lead and insert the wire ends into the cage clamp connector of the terminal block Use a screwdriver to tighten the screw by turning it in a clockwise direction to secure the wire 0 5 0 6Nm torque Since common mode voltages can exist on signal wiring adequate wire insulation should be used and proper wiring practices followed As a rule output wires are normally separated from input wiring for safety as well as for low noise pickup Acromag Inc Tel 248 295 0880 6 http www acromag com Model TT235 0600 Sensor Input Connections MODEL TT235 0600 INPUT SENSOR WIRING SEE FOLLOWING PAGE FOR INPUT SENSOR WIRING DETAILS SHIELDED RTD Resistance Thermometer Transmitter w USB Sensor wires are connected directly to the transmitter input terminals at the bottom of the transmitter the spring loaded DIN clip side as shown in the connection drawing below 41 CABLE tt INPUT l AE Transmitter input signal is isolated from output Three w
46. r wire configuration eliminates error associated with lead wire resistance e Up or down scale lead break burnout detection e RTD inputs are linearized with respect to temperature e Supports Celsius Fahrenheit and Kelvin temperature units e Adjustable input range and selectable output ranges e input and output circuits are fully isolated from each other e Convenient two wire loop power with non polarized output connections e Normal or reverse acting output e Namur compliant loop current e Variable input filter adjustment e Wide range DC power input from 12 32VDC e Wide ambient temperature operation e Thoroughly tested and hardened for harsh environments e CE Approved e UL cUL Class I Division 2 Approved The TT235 transmitter is designed for high density mounting on 35mm T type DIN rails Modules may be mounted side by side on 0 5 inch 12 5mm centers This model interfaces with RTD or resistive element inputs and isolates the input signal allowing it to mate with grounded or non grounded input signals It provides an output signal linearized to the RTD sensor temperature Optionally it can support simple resistance input and drive an output signal linear with sensor resistance The output signal is transmitted via a two wire 4 20mA current loop The two wire current signal can be transmitted over long distances with high noise immunity Its inherent live zero 4mA offset current offers built in output fault dete
47. rial Number and Manufacturer of the connected transmitter and report the status of communication 1 O Config Test Configure and or Test the Transmitter Here e Optional Click the Get I O Config button to retrieve the I O configuration of the currently connected transmitter e Select the Input Type RTD Platinum Copper Nickel or Resistance e Select the Input Range RTD alpha value or resistance range e Select the Configuration Four wire Three wire or Two wire e Select the level of digital filtering High Medium Low or None The corresponding I O response times are listed in parenthesis next to the filter selection e Select the Break Direction Under range or Over range e Select the temperature units to use in the configuration software e Enter the I O Scaling Specify the input temperatures to correspond to Zero Scale and Full Scale e Submit the configuration settings to the transmitter by clicking the Send I O Config button to write the settings to the non volatile EEPROM memory For detailed configuration and calibration procedures see the Operation Step By Step section of the Technical Reference of this manual 14 http www acromag com Model TT235 0600 Quick Overview Windows HELP You can press F1 for Help on a selected or highlighted field or control You can also click the button in the upper right hand corner of the window and click to point to a field or control to get a Help me
48. s below nominal as the programmed input range is reduced Likewise error is magnified as the input span is reduced Sampling Rate ADC Input is sampled at a variable rate according to the input filter selection as follows ADC Sampling rate Samples Second per Input Filter None tow Medium Hih 107 325sps 42 93sps 12 63sps 1 665sps Noise Rejection Common Mode Varies with input and input filter selection between 88aB no filter and 124dB high filter typical with 1000 input unbalance Noise Rejection Normal Mode Varies with input and input filter selection Table below indicates the typical rejection at 60Hz for each input and input filter selection Note that at the medium and high filter settings the ADC converter adds 80dB minimum of rejection for frequencies between 49Hz and 61Hz Typical 60Hz Rejection per Input Filter Lead Wire Compensation Requires balanced and L sensor leads same size length amp type and only used with three wire configuration Lead Wire Resistance Effect Four wire configuration Less than 0 001 C per O of unbalance typical Three wire and two wire configurations 3 5 C per Q of unbalance typical Pt100 1 4 C per Q of unbalance typical Ni 25 5 C per Q of unbalance typical Cu Maximum resistance of 250 per lead Lead Break Sensor Burnout Detection Can be set for Over range or Under range open sensor or lead break detection Over range output limit is approximate
49. s no commitment to update or keep current the information contained in this manual No part of this manual may be copied or reproduced in any form without the prior written consent of Acromag Inc Acromag Inc Tel 248 295 0880 3 http www acromag com Model TT235 0600 GETTING STARTED DESCRIPTION Symbols on equipment A Means Refer to User s Manual this manual for additional information Key Features Application For additional information on these devices and related topics please visit our web site at www acromag com RTD Resistance Thermometer Transmitter w USB The TT235 0600 is an ANSI ISA Type 2 transmitter designed to interface with RTDs Resistance Temperature Detector or resistive elements isolate the input signal and modulate a 4 20mA current signal to drive a two wire current loop The transmitter provides RTD sensor excitation linearization lead wire compensation and lead break or sensor burnout detection Configuration is performed using software and a USB connection to Windows based PC s Windows XP and later versions only e Fully configurable using Windows software via USB e Thin 12 5mm wide enclosure for high density DIN rail mounting e High measurement accuracy and linearity e Pt100 Pt200 Pt500 Pt1000 Copper and Nickel type RTDs supported e 25Q 4500 22500 and 45000 resistive ranges also supported e Connects to two wire three wire or four wire sensors e Fou
50. ssage pertaining to the item you pointed to EQ 17235 Configuration Software g x File Help m Communication Setup 1 0 Config Test Calibration CALIBRATION Input Input Cal Instructions Zero Scale Full Scale arabs a mn TT235 Config z a esicion resistance of 100 00 ohms to the transmitter input Click OK to submit calibration or Cancel to stop calibration Note All Platinum 100 Ohm RTDs Nickel RTD and 500 Ohm Resistance Input Types will be automatically calibrated OK Cancel CALIBRATION STATUS No Error TT235 Configuration Software 9 File Help Communication Setup 1 0 Config Test Calibration CALIBRATION Input Input Cal Instructions _ Zero Scale Full Scale Output Calibration For Zero Scale endpoint adjustment use a current meter or digital volt meter to accurately measure the transmitter output signal and enter the measurement into the input field below Click the Submit Measurement button to calibrate the transmitter ly puts Currently calibrating 4 20mA Output Zero Scale Zero Scale Measurement mA Submit Measurement Cancel Calibration Acromag Inc Tel 248 295 0880 RTD Resistance Thermometer Transmitter w USB 1 0 Test Optional Verify Transmitter Operation Here After making I O configuration changes you can use the I O Test controls to start stop polling the input channel
51. ssssssssssssssssssssossssssssosssesss 7 Output Power Connections sssssesssesesesesssesesesesesesesereseseseeeneeeseseneseneseneseserenererererereresene 9 Earth Ground Connections seeeeesseesesssssessseseseueeeneeeuueeueeeneneneuenuueunueunneuneenneeunnennuenunenneenneennee 11 USB CONMGCHOINS sivas sessiscincsnauesisensdcnnentuvend caubecsavanavenstsadenscauadend cunuucusessevendtaussenapatevendeunavanens 12 CONFIGURATION SOPTWAR Ew iisvisisseasaesicssescvsessarsivasioveabivecaddecceccUssesbeaseve 13 Quick Overview Android esssssssessseessesneneneeensnenenenenenenenenenenenenenenenerenenenenenenenenenenenenenene 13 Quick Overview WINKOWS ssssssssessossossssssossssoseseososeososessoseososessosossosesessossosossssossssosesenso 14 OPERATION STEP BY STEP sivisssssivsccussastcasseisanasssastuanananenvassasseavanieiansaninens 16 Eolia ed ol EE E a T 16 COMMIS UN AE ON ss isin cecexssccsacastesusscnsenceasiabiasnansesceanstesusnessenecaasnpiccsesunisienctidusinesestiasbebinieamiessiens 18 Calibration Optional acsicecincactssivssveerennsvanesenesneentockeconsusaueensoveabonyeranedbeteeesesiveivbnesteaenrnerers 20 RTD Resistance Versus Temperature ccccccescecsssccccsecccccscccceecceneccceseesuseseceescecsececeesceeeees 22 BLOCK DIAGRAM sssississsscscisccssectcacessedsiessostnsestsisestsisasncnsesctssbeinsesssnsnsosnses 23 How It WOKS sisscasecicis Soninvactndichabsnavipannnncchaissauiipennnds cha naesteureadopbabinubiobenade
52. the lowest resolution of either the input or the output Output Response Time Varies with input filter level for a step change in the input signal also varies with output load Note The ADC requires two samples to fully characterize the input signal see Input Sampling Rate Filter Level Response Time Typical High Filter 1210ms Output Power Supply This device is output loop powered from 12 32VDC SELV Safety Extra Low Voltage 24mA maximum The supply voltage across the transmitter must never exceed 36V even with a shorted load The supply voltage level must be chosen to provide a minimum of full scale current to the load 0 020 R typical plus 11V minimum to the transmitter terminals plus any line drop Ideally the supply should drive over scale current levels up to 24mA into load Reverse polarity protection is inherent as output terminals are not polarized The output polarity labels on the enclosure are for reference only CAUTION Do not exceed 36VDC peak to avoid damage to the transmitter Terminal voltage above 11V minimum must be maintained across the transmitter during operation Output Power Supply Effect Less than 0 001 of output span per volt DC of supply change Output Load Resistance Effect Less than 0 001 of output span for a 1000 change in load resistance Output Compliance and Load Resistance Equation 11V minimum transmitter Transmitter will drive 13V typical to the load with a 24V loop sup
53. tion Software Kit Model TTC SIP which includes O Power CoNNEGTo 1 ea Model 4001 113 USB Cable 1 ea Model 4001 112 USB Cable MODEL NO USB ISOLATOR 1 ea Model USB ISOLATOR REQUIRED 1 ea Configuration Software CDROM 5040 944 AN e USB Signal Isolation is Required See Below Acromag model USB ISOLATOR may be used to isolate the USB port or optionally another USB signal isolator that supports USB Full Speed operation 12Mbps Configuration Requires USB and Loop Power This transmitter draws power from both the current loop and from USB during setup WARNING The intent of mating USB with this transmitter is so that it can be conveniently configured and calibrated in a safe area then installed in the field which may be in a hazardous area Do not attempt to connect a PC or laptop to this transmitter while installed in a hazardous area as USB energy levels could ignite explosive gases or particles in the air IMPORTANT USB logic signals to the transmitter are referenced to the potential of the transmitter s input ground This ground is held in common with USB ground and USB cable shield ground The potential of the transmitter s current output pin output minus relative to earth ground will vary according to the load current and load resistance net IR drop Without isolation this IR drop would drive a potential difference between the normally grounded current loop and the grounded USB connection at the PC causing
54. tions to the transmitter by clicking the Send I O Config button Click the Input Cal Instructions button to begin input calibration and enable the Input Zero Scale and Full Scale buttons Click the Input Zero Scale button of the Calibration Input section and you will be prompted to input a specific resistance at TB1 TB2 Once you input the resistance precisely click the OK button of the prompt to calibrate zero scale Click the Input Full Scale button of the Calibration Input section and you will be prompted to input a specific at TB1 TB2 Once you input the resistance precisely click the OK button of the prompt to calibrate full scale CAUTION Input Calibration Driving inputs outside of the nominal input range of the transmitter will not be acceptable for calibration of zero or full scale Since input levels cannot be validated during calibration incorrect signal levels will produce an undesired output response 20 http www acromag com Model TT235 0600 Calibration Optional 17235 Configuration Software File Help i Communication Setup 1 0 Config Test Calibration CALIBRATION Input Input Cal Instructions Zero Scale Full Scale Output Calibration For Zero Scale endpoint adjustment use a current meter or digital volt meter to accurately measure the transmitter output signal and enter the measurement into the input field below Click the Submit Measurement button to ca
55. to a PC to prevent a ground loop from occurring between the PC earth ground and a grounded input sensor which would have the negative affect of pulling the input bias supply to ground clipping the negative portion of the bipolar input range http www acromag com Model TT235 0600 TROUBLESHOOTING Diagnostics Table Before attempting repair or replacement be sure that all installation and configuration procedures have been followed and that the transmitter is wired properly Verify that power is applied to the transmitter and that the supply voltage is at least 11V If the problem still exists after checking the wiring and reviewing this information or if other evidence points to another problem with the transmitter an effective and convenient fault diagnosis method is to exchange the questionable transmitter with a known good transmitter Acromag s Application Engineers can provide further technical assistance if required Repair services are also available from Acromag Acromag Inc Tel 248 295 0880 RTD Resistance Thermometer Transmitter w USB Transmitter fails to operate or exhibits an output shift A missing USB Isolator could cause a ground loop between a grounded input sensor and earth ground at the connected PC s USB port Without a USB isolator a ground loop is possible between a grounded input signal source and earth ground of the PC USB port It is best to connect to USB via a USB isolat
56. torage Temperature 40 C to 85 C 40 F to 185 F Relative Humidity 5 to 95 non condensing Isolation Input USB output power circuits are isolated from each other for common mode voltages up to 250VAC or 354V DC off DC power ground ona continuous basis will withstand 1500VAC dielectric strength test for one minute without breakdown Complies with test requirements of ANSI ISA 82 01 1988 for voltage rating specified Installation Category Suitable for installation in a Pollution Degree 2 environment with an Installation Category Over voltage Category Il rating per IEC 1010 1 1990 Shock amp Vibration Immunity Conforms to IEC 60068 2 6 10 500 Hz 4G 2 Hours axis for sinusoidal vibration IEC 60068 2 64 10 500 Hz 4G rms 2 Hours axis for random vibration and IEC 60068 2 27 25G 11ms half sine 18 shocks at 6 orientations for mechanical shock Electromagnetic Compatibility EMC Minimum Immunity per BS EN 61000 6 1 Electrostatic Discharge Immunity ESD per IEC 61000 4 2 Radiated Field Immunity RFI per IEC 61000 4 3 Electrical Fast Transient Immunity EFT per IEC 61000 4 4 Surge Immunity per IEC 61000 4 5 Conducted RF Immunity CRFI per IEC 61000 4 6 Class B Product with Emissions per BS EN 61000 6 3 1 Enclosure Port per CISPR 16 2 Low Voltage AC Mains Port per CISPR 14 16 3 DC Power Port per CISPR 16 4 Telecom Network Port per CISPR 22 VR WN Acromag Inc Tel 248 295 0880 33 h
57. transmitter the window shown at left will appear if you have not already connected to the transmitter via USB note fields are blank under these conditions Connect your PC to the transmitter via USB and the transmitter s model serial information will appear in the device field as shown in the second window at left If you happen to be connected to more than one transmitter via a USB hub you can use the device scroll field to select another transmitter using the serial information suffix of the model number to discern one transmitter from another Select a transmitter from the drop down menu When you click on a transmitter name from the drop down menu the software will automatically attempt to open a connection with the selected transmitter If the software does not have an open connection with the transmitter click the Open button to open a connection with the transmitter After opening a connection to a transmitter the transmitter s Model Serial Number Manufacturer and connection status will be displayed as shown in the image on the left In addition the Status field will indicate Device opened successfully as shown in the image at left 17 http www acromag com Model TT235 0600 Configuration File Help Communication Setup 1 0 Config Test Calibration DEVICE SELECT Device 77235 0600 0000001 Close Model 1T235 0600 SerialNumber 0000001 Manufacturer Acromag In
58. ttp www acromag com Model TT235 0600 Agency Approvals Reliability Prediction Configuration Controls RTD Resistance Thermometer Transmitter w USB Safety Approvals UL Listed USA amp Canada Hazardous Locations Class Division 2 Groups A B C D Hazardous Location or Nonhazardous Locations only These devices are open type devices that are to be installed in an enclosure suitable for the environment Consult Factory Electromagnetic Compatibility EMC CE marked per EMC Directive 2004 108 EC Consult factory MTBF Mean Time Between Failure MTBF in hours using MIL HDBK 217F FN2 Per MIL HDBK 217 Ground Benign Controlled GgGc MTBF Hours MTBF Years Failure Rate FIT 1 077 503 705 154 Software Configuration Only via USB This transmitter drives an analog output current proportional to a sensor input No switches or potentiometers are used to make adjustments to this transmitter Its behavior as an isolated signal amplifier transducer is determined via programmed variables set using a temporary USB connection to a host computer or laptop running a Windows compatible configuration software program specific to the transmitter model This software provides the framework for digital control of all configuration and calibration parameters and this information is stored in non volatile memory Refer to Operation Step By Step in the Technical Reference section of this manual for detailed information on
59. vals 0 No other approvals Optional factory calibration to customer specifications is ordered as a separate line item at time of purchase and on a per unit basis Factory calibration will require the specification of input type input range zero input range full scale Steinhart Hart or Beta constants for Thermistor input types and output range Normal or reverse acting output and a filter level can also be specified Use form 8500 858 for specifying this calibration from our web site at www acromag com The standard model without adding custom factory calibration is calibrated by default to reference test conditions Recalibration of any transmitter will require use of a TTC SIP configuration kit ordered separately see Accessories section Modules can be mounted on standard 35mm T Type DIN rail Input Reference Test Conditions 1000 Pt RTD a 0 00385 200 C to 850 C input Configuration Three wire Filtering Medium Output 4 to 20mA ascending R Load 2500 Break detection Over range Ambient 25 C Power supply 24VDC Input Configuration Four wire lead wire has negligible effect three wire with lead wire compensation and two wire without lead wire compensation Input Impedance 15 4M0 typical Input Overvoltage Protection Bipolar Transient Voltage Suppressors TVS rated up to 5 6V working voltage typical Also includes capacitive filtering and series resistance Input Filtering Normal mode RC f
60. ver range is considered Always apply power to the transmitter output loop even when connected to USB Connect to PC via USB Refer to USB Connections section and connect the transmitter to the PC using the USB isolator and cables provided in the Configuration Kit TT SIP Now that you have made your connections and applied power to your loop you can execute the TT235 Config exe software to begin configuration of the transmitter software is compatible with XP or later versions of the Windows operating system Acromag Inc Tel 248 295 0880 16 http www acromag com Model TT235 0600 Connections File Help Communication Setup 1 0 Config Test Calibration DEVICE SELECT Device Model Serial Number Manufacturer Status TT235 0600 0000001 Select device then click open Tite EEE File Help DEVICE SELECT Device Model Serial Number Manufacturer Status Communication Setup 1O Config Test Calibration 1T235 0600 0000001 Zi 17235 0600 0000001 Acromag Inc Device opened successfully Reset Device Acromag Inc Tel 248 295 0880 RTD Resistance Thermometer Transmitter w USB NOTE You should already have power connected to the transmitter You will not be able to calibrate or test the transmitter without power applied After executing the Acromag Configuration software for this

8500995 TT235-0600 User`s Manual

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