8500997 TT335-0700 User`s Manual
Contents
1. PERSONAL COMPUTER RUNNING WINDOWS OS a POWER OUTPUT HOST PC RUNNING DC POWER ACROMAG E SUPPLY CONFIGURATION 12 32V SOFTWARE USB MiniB MALE MODEL TT3XX TRANSMITTER TE li N I USB MiniB Socket Front Panel of Module HOST HOST USB PORT 5 USB F G TB2 TBI c o INPUT INPUT g 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 1 Tb E 88 0 AAA 7 Refer to Configuration Software Kit Model TTC SIP which includes Orower 1 ea Model 4001 113 USB Cable 1 ea Model 4001 112 USB Cable 1 ea Model USB ISOLATOR MODEL NO USB ISOLATOR RECOMMENDED 1 ea Configuration Software CDROM 5040 944 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 Acromag Inc Tel 248 295 0880 USB Signal Isolation is recommended and required when connected to a grounded input Input and USB connections are isolated from the output o2. 17 http www acromag com Model TT335 0700 Configuration File Help Communication Setup Config Test Calibration DEVICE SELECT Device 11335 0700 0000001 Model TT335 0700 Serial Number 0000001 Manufacturer Acromag Inc Status Device opened successfully Reset Device 17335 Configuration Software File Help Communication Setup 1 0 Config Test Calibration CONFIGURE 1 0 Get 1 0 Config Input Options Input Type RTD Pt100 Input Range alpha 0 00385 Configuration Three wire Z InputFiltering Medium 160 miliseconds Output Options Break Direction Over range x OutputRange 4 20 miliamps Temperature Units 9 Celsius Fahrenheit Kelvin 1 0 Scaling 200 00 C 4mAOut 85000 C 20mA Out Status No Device Connected Send Config TEST 1 0 eo StartPoling Temperature Click Start Polling to poll the input and display its value The LED next to the button will fash when polling is active Click Stop Polling to discontinue polling the input 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 r
3. Configuration Three wre Input Filtering Medium 160 miliseconds M Output Options Break Direction Over range Output Range 4 20 miliamps Temperature Units 9 Celsius Fahrenheit Kelvin 1 0 Scaling 200 00 C 4mAOut 850 00 C 20mA Out Status No Device Connected Send 1 0 Config TEST Q StertPoting Temperature Click Start Poling to poll the input and display its value The LED next to the button will fash when polling is active Click Stop Polling to discontinue polling the input File Communication Setup HO Config Test Calibration DEVICE SELECT Device 7335 0700 0000001 Acromag Inc Tel 248 295 0880 This transmitter can only 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
4. R100 C RO C RO C 100 C For 1000 a 0 00385 this is 38 50 100 00 100 or 0 003850 0 Acromag Inc Tel 248 295 0880 22 http www acromag com Model TT335 0700 RTD Resistance Thermometer Transmitter w USB BLOCK DIAGRAM TT335 0700 SIMPLIFIED SCHEMATIC FILTERING AND DETAIL OMITTED FOR CLARITY 15V PH MOSI SPI gt m i UNIVERSAL OUTPUT 4 miso DRIVER RIH ena PII ose 45V BE BUCK gt d SORTED BOWER 770007 ISOLATED FLYBACK CONVERTER Ayyy 24b A D CONV gt A T 499 2 WIRE amp 3 WIRE CONFIGURATIONS 2 REQUIRE JUMPER CONNECTIONS AS INDICATED iey BIPOLAR BOOST CONVERTER BUS CONN D M 25 NC OUTPUT D Nc P FLYBACK CONVERTER 15V How It Works The TT335 transmitter uses a 32 bit microcontroller and a high resolution 24 bit Key Points of Operation ADC to digitize the input signal and communicate to the output DAC via an SPI bus e DC Powered The SPI bus passes through digital isolators and is received by a 16 bit output DAC which drives a universal output driver for current or voltage The output is very unique in that it may drive current or voltage to the load without having to change Isolated Power Isolated Input load connections only the load resistance must
5. This software is also included on a CDROM bundled with the Configuration Kit TTC SIP see Accessories For this transmitter use the software named TT335 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 Config Test and Calibration Communication Setup First Connect to Transmitter Here Select from connected transmitters and Open Close communication with them e Display the Model Serial Number and Manufacturer of the connected transmitter and report the status of communication Config Test Configure and or Test the Transmitter Here e Optional Click the Get I O Config button to retrieve the 1 0 configuration of the currently connected transmitter Selectthe Input Type RTD Platinum Copper Nickel or Resistance Select the Input Range RTD alpha value or resistance range Select the Configuration Four wire Three wire Two wire Select the level of digital filtering High Medium Low or None The corresponding 1 0 response times are listed in parenthesis next to the filter selection e Select the Break Direction Under range or Over range Select the temperature units to use in the configuration software e Select the Output Range 5V 10V 0 5V 0 10V 20mA 0 20mA or 4 20mA e Enter the I O Scaling Specify the input temperatures to correspond
6. 10 5V 5V to 5V 5 25V to 5 25V Oto 10V 0 5527V to 10 5V Oto 5V 0 27634V to 5 25V Oto 20 1 1054mA to 21mA 4mA to 20mA 1 1054mA to 21mA Acromag Inc Tel 248 295 0880 129 http www acromag com Model TT335 0700 RTD Resistance Thermometer Transmitter w USB Output 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 This includes the effects of repeatability terminal point conformity and linearization but does not include sensor error Output Load Voltage output can drive loads down to 1KO minimum Current output can drive 21mA DC into 0 5250 Output Load Resistance Effect Less than 0 005 of output span effect for 1000 change in load resistance 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 O 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 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
7. 17 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 250 4500 22500 and 45000 resistive ranges also supported e Connects to two wire three wire or four wire sensors e Four wire configuration eliminates error associated with lead wire resistance e Up or down scale lead break burnout detection e 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 output and power circuits are fully isolated from each other e Universal output for 10V 0 10V 5V 0 5V 20mA 0 20mA and 4 20mA e Output drives DC current or DC voltage without rewiring e Normal or reverse acting output e Variable input filter adjustment e Wide range DC power input form 12 32VDC e Wide ambient temperature operation e Thoroughly tested and hardened for harsh environments e CE Approved e UL cUL Class1 Division 2 Approved The TT335 transmitter is designed for high density mounting on 35mm T type DIN rails Modules may be mounted side by side on 0 7 inch 17 5mm centers 12 32 DC power is supported via terminals on the module or optionally via power wired to its DIN rail bus connector This model interfaces with RTD or resistive element inputs and isolates the input signal allowing it to mate w
8. BOTH Observe proper polarity Note that twisted pair wiring is often used to connect the longest distance between the field transmitter output and the remote load as shown above Additionally shielded twisted pair wiring is recommended for best results An output connection to earth ground will help protect the circuit from damage in noisy environments WARNING For compliance to applicable safety and performance standards the use of twisted pair output wiring is recommended Failure to adhere to proper wiring and grounding practices as instructed may compromise safety performance and possibly damage the transmitter TIP Ripple amp Noise Additional filtering placed at the load can help reduce 60Hz 120Hz ripple often present in industrial applications 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 O 1uF capacitor directly across the load as close to the load as possible Acromag Inc Tel 248 295 0880 9 http www acromag com Model TT335 0700 Power Connections RTD Resistance Thermometer Transmitter w USB This transmitter is powered from 12 32VDC 36VDC peak by connecting power as shown below This transmitter can be optionally powered or redundantly powered via the DIN rail bus when coupled to the DIN rail
9. STATUS No Error Acromag Inc Tel 248 295 0880 RTD Resistance Thermometer Transmitter w USB Test Optional Verify Transmitter Operation Here After making I O configuration changes you can use the 1 0 Test controls to start stop polling the input channel 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
10. USB A mint B Cable oC AEN evo PL CAR DUREE E ORE PAAR AQUIS MEO DER VUE QUE MORS RES 26 Model ee 27 E 27 29 USB ion ac doo aba eG DI nta tote E DN entiende epu du UH anne teases 31 Iul 31 Enclosure amp Physical ici eo a 32 Environmental o n m D E UR 32 Agency ABDFOVals Eon o M 33 Reliability Predictiolc a 33 Configuration Controls RE Ea eaaeo EE EOS AEE OL BUR Ege dde 33 REVISION HISTORY ioieie sex IRR ERRERIO NEAR RA ERRARE AVARAWA RR VER TERT ERU VIRO 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
11. 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 of unbalance typical Pt100 1 4 C per of unbalance typical Ni 25 5 C per of unbalance typical Cu Maximum resistance of 250 per lead Lead Wire Break Burnout Detection Can be set for Over range or Under range open sensor or lead break detection Limits are output range dependent Over range output limit is approximately 21mA 10 5V or 5 25V depending on the output range selected Under range limit is approximately 21mA OMA 3 5mA 0 25V or 10 5V depending on the output range selected Output Range Can be configured for one of seven nominal output ranges shown below All output ranges include approximately 596 under over range capability Output Range Output Range with Under Over Range 10V to 10V 10 5V to
12. cannot be validated during calibration incorrect signal levels will produce an undesired output response 120 http www acromag com Model TT335 0700 Calibration Optional 7335 Configuration Software L9 Eite Help Communication Setup ConfigiTest Calibration CALIBRATION Input Input Cal Instructions Output Calibration For Zero Scale endpoint adjustment use current meter 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 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 NOTE 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 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 fi
13. of the window and click on a field or control to get Help message pertaining to the item you clicked on NOTE A 596 under range and over range capability is built into the output range by design See Output Specifications for more detail Acromag Inc 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 1 0 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 596 outside the nominal output range selected Select the Output Range The output terminals of this transmitter are universal and may drive DC current or voltage in the ranges 20mA 0 20mA 4 20mA 10V 0 10V 5V and 0 5V Voltage outputs may drive 1 or higher loads while current outputs may drive 5250 or less Select the Temperature Units Select the temperature units to use in the Configuration Software You may select Celsius Fah
14. should ideally be grounded closest to the transmitter Only one end of the connection should be grounded never both power is isolated from the input and output circuits MODEL TT33X 0700 OUTPUT WIRING OUTPUT WIRED FOR DC CURRENT OR VOLTAGE TOP VIEW NPUT SIDE OUTPUT amp POWER SIDE OUTPUT amp POWER SIDE i 818 CURRENT OUTPUT eee TB1 TB3 Tour INPUT aL SHIELDED CABLE OUTPUT 9 8 x 7 um au mE E MAX RESISITANCE 525 7 e als CAPACITANCE 1001 ha MAX INDUCTANCE 15 INPUT POWER ANY MODEL TT33X 0700 CURRENT OUTPUT LOAD GROUND DRIVES 20mA INTO 525 MAX AT 1 OR 2 0 20mA 4 20mA 20 E 4 d OR VOLTAGE OUTPUT V SHIELDED CABLE d PT _ Roa K I i MIN RESISITANCE 1000 re f CAPACITANCE 1004F mem BR J VOLTAGE OUTPUT LOAD EARTH DRIVES 10V INTO 1K MIN E r H S EUMD 2 0 10V 0 5V 10V SPRAINS HE BUT NOT
15. test conditions see Input Specifications Output DAC Resolution Output is driven by a 16 bit Voltage DAC Maxim MAX5216GUA with a 2 5V reference and driving a universal current voltage output driver The output resolution per output range is indicated below The effective I O resolution of the transmitter will be the lowest resolution of the input and the output D A relative to the programmed I O ranges Output Range Output Resolution 1 LSB of Span 10V to 10V 1 part in 62558 319 703uV 0 001598 10V 1 part 59293 168 362uV 0 001684 5V to 5V 1 part in 31278 319 714uV 0 003197 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 Acromag Inc Tel 248 295 0880 30 http www acromag com Model TT335 0700 USB Interface 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
16. 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 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 TT335 0700 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 N Connect Power Connect Output Connect PC USB Configure I O Calibration Connections NOTE When calibrating the input source output meter and load resistor for current output must be accurate beyond the tra
17. 3 954 103 963 103 973 107 794 107 896 107 915 107 934 111 673 111 827 111 855 111 883 115 541 115 745 115 783 115 821 119 397 119 652 119 700 119 747 123 242 123 547 123 605 123 661 127 075 127 429 127 498 127 563 130 897 131 300 131 379 131 454 134 707 135 160 135 249 135 333 138 506 139 007 139 107 139 200 157 325 158 066 158 222 158 360 175 856 176 828 177 044 177 226 194 098 195 294 195 574 195 799 212 052 213 463 213 811 214 079 229 716 231 336 231 756 232 065 247 092 248 912 249 409 249 758 264 179 266 192 266 769 267 157 280 978 283 175 283 836 284 263 297 487 299 862 300 611 301 075 313 708 316 252 317 094 317 594 329 640 332 346 333 284 333 820 345 284 348 143 349 181 349 752 360 638 363 644 364 787 365 391 375 704 378 848 380 099 380 736 390 481 393 756 395 119 395 788 NOTE 2000 5000 10000 Platinum RTD resistances 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 10000 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
18. Acromag 49 THE LEADER IN INDUSTRIAL I O USB Programmable DIN Rail Mount Thin Transmitter Model TT335 0700 RTD Resistance Input Universal Current amp Voltage Output USER S MANUAL ACROMAG INCORPORATED Tel 248 295 0880 30765 South Wixom Road Fax 248 624 9234 Wixom MI 48393 7037 U S A email sales acromag com Copyright 2014 Acromag Inc Printed in the USA Data and specifications are subject to change without notice 8500 997F Model TT335 0700 RTD Resistance Thermometer Transmitter w USB Table of Contents GETTING STARTED DESCRIPTION 4 A UIT OIZ LL III TIT 4 Me 4 Mechanical DIMENSIONS mee 5 DIN Rail Mounting amp iva pex o bcc e n Sri da evi deed rv KR 5 ELECTRICAL CONNECTIONS eee nv ek eu PR en VR UN BN ERYR ER EN OTI EN UAE 6 Sensor Input Connectlofis 1 eere eoo eee ae Soy e Seve hoe ya En EU aae eese aa Co vnus a eb 7 OUTPUT CONNESCHIONS e 9 Power CONNECTIONS eae Ro Pee v eT aae epa se aoa pan op tonas Eae eva Ned pex Senere rasne a sarasi 10 Optional Bus amp Redundant Power Connections ee eese eese ee ee esee enne nnn nnn 11 Eart
19. CTOR x TTT OPTIONAL POWER DIN RAIL SPRING CLIP Acromag Inc Tel 248 295 0880 10 5 ps OUTPUT POWER IS ISOLATED FROM SIGNAL INPUT AND OUTPUT CIRCUITS FUSE e Omm Er 4 EARTH GROUND AT 4 OR 2 BUT NOT BOTH T CAUTION DO NOT EXCEED 36VDC OR DAMAGE TO THE UNIT MAY RESULT NOTE IT IS RECOMMENDED THAT SUPPLIES CAPABLE OF SOURCING MORE THAN 2 5A TO THE UNIT BE FUSED w r WITH A HIGH SURGE TOLERANT FUSE http www acromag com Model TT335 0700 RTD Resistance Thermometer Transmitter w USB Optional Bus amp Redundant Power Connections Power is normally connected to the TB4 power terminals of the transmitter as shown on the previous page However this transmitter is equipped to be optionally powered via its DIN rail bus connector provided Acromag 1005 063 when mated to an optional plug in terminal block Acromag 1005 220 or 1005 221 Power input via the bus connector terminal is diode coupled to the same point as transmitter power connected at TB4 power Multiple modules may be powered by snapping them together along the DIN rail bus then using the mating terminal block shown at left select a Left or Right side connector While the inte
20. 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 and 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 TT335 0700 Configuration 17335 Configuration Software File Communication Setup 1 0 Config Test Calibration CONFIGURE 1 0 RTD Pt100 Input Options Input Type Input Range alpha 0 00385 Configuration Input Filtering Medium 160 milliseconds Output Options Break Direction z Output Range 4 20 miliamps x Temperature Units Celsius Fahrenheit Kelvin 1 O Scaling 200 00 4mAOut 850 00 C 20mAOut Status No Device Connected Send Config TEST 1 0 Temperature c Click Start Poling to poll the input and display its value LED next to the button will flash when poling is active Click Stop Polling 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
21. D 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 Note These ranges only available on device firmware revision D or later Analog to Digital Converter ADC Input utilizes a 24 bit X 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 is the resistance of the input 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 Cu 100 Minco 16 9 0 004274 1 part in 19384 Resistance 0 to 25 Ohms N A 1 part in 26172 Resistance 450 900 2250 4500 Ohms N A 1 part in 29491 Notes Alpha a is used to identify the RTD curve Refer
22. 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 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 TT335 0700 RTD Resistance Thermometer Transmitter w USB TT3XX MODULE DIN RAIL MOUNTING AND REMOVAL OUTPUT SIDE TOP ooo TT300 Series 35mm DIN Rail Ia INPUT SIDE ELECTRICAL CONNECTIONS TILT MODULE UPWARD TOWARDS RAIL AND HOOK ONTO UP
23. ED CABLE H 2 3 2 gt O tg 2 4 5 6 H L OPTIONAL eis SHIELD a 3 L GROUND SEE NOTE 1 SEE NOTE 2 gt NOTE LEAD WIRE RESISTANCE LEAD WIRE RESISTANCE HAS A NEGLIGIBLE EFFECT ON THE RESISTANCE MEASUREMENT WHEN USING A 4 WIRE CONFIGURATION FT 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 ISOLATOR 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 TT335 0700 RTD Resistance Thermometer Transmitter w USB Output Connections DC Current or Voltage e Output connections are polarized Current is output from Output and returns to Output Voltage output is positive at Output NOTE Variations in load resistance have negligible effect on output accuracy as long This transmitter is an ANSI ISA as load limits are respected with respect to output type Type 4 in which the transmitter s Note the placement of earth ground The output cable shield and return
24. G 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 This is a 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 DCPower Port per CISPR 16 4 Telecom Network Port per CISPR 22 VR WN Acromag Inc Tel 248 295 0880 132 http www acromag com Model TT335 0700 Agency Approvals Reliability Prediction Configuration Controls RTD Resistance Thermometer Transmitter w USB Safety Approvals UL Listed USA amp Canada Hazardous Locations Class I Division 2 Groups A B C D 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 1 341 495 883 673 Software Configuration Only via USB This transmitter drives an analog output current or voltage proportional to a sensor input No switches or potentiometers are used to make adjustments to this transmitter Its behavio
25. PER LIP OF RAIL ROTATE MODULE DOWNWARD TO ENGAGE SPRING CLIP ONTO LOWER LIP OF RAIL ON TT3XX MODULE T Rail SPRING CLIP Wd gt SCREWDRIVER SLOT FOR REMOVAL FROM T TYPE DIN RAIL USE SCREWDRIVER TO REMOVE MODULE FROM RAIL AS SHOWN 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 TT335 0700 Sensor Input Connections 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
26. PUT SENSOR WIRING BOTTOM VIEW TPUT amp POWER SIDE INPUT SIDE INPUT SIDE OUTPUT amp POWER S SEE FOLLOWING PAGE mc FOR INPUT SENSOR WIRING DETAILS SHIELDED TB1 INPUT OUTPUT INPUT SENSOR TB2 INPUT RM MODEL TT335 0700 ROWER OPTIONAL 5 i SHIELD tc _ GROUND 6 IL SEE NOTE m NOTE SHIELDED CABLE GROUND ro SHIELDED CABLE IS RECOMMENDED FOR BEST RESULTS GROUND THE CABLE SHIELD AT THE END OF THE CABLE CLOSEST TO THE GREATEST BUS CONNECTOR POTENTIAL SOURCE OF DISTURBANCE ME OPTIONAL POWER USUALLY THE SENSOR END DIN RAIL SPRING CLIP Acromag Inc Tel 248 295 0880 7 http www acromag com Model TT335 0700 RTD Resistance Thermometer Transmitter w USB Sensor Input Connections INPUT SENSOR WIRING 4 WIRE RTD BOTTOM VIEW INPUT SIDE SHIELDED CABLE i nun i 041 225 i OPTIONAL SHIELD GROUND SEE NOTE 1 SEE NOTE 2 NOTE LEAD WIRE RESISTANCE OL LEAD WIRE RESISTANCE HAS A NEGLIGIBLE EFFECT ON THE RTD MEASUREMENT WHEN USING A 4 WIRE CONFIGURATION INPUT SENSOR WIRING 2 WIRE RTD SHIELDED CABLE BOTTOM VIEW INPUT SIDE i OPTIONAL
27. 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 configure calibrate or test the transmitter without power applied After executing the Acromag Configuration software for this 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
28. 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 12V 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 POSSIBLE CAUSE POSSIBLE FIX Cannot Communicate with Transmitter via USB Output shifts off range when USB is connected 7 Output Erratic Not operational at Wrong Value 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 isolator for this reason and for increased safety and noise immunity Use an isolator like the Acromag USB ISOLATOR Otherwise use a battery powered laptop t
29. ay 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 TT335 0700 Calibration Optional Acromag Inc Tel 248 295 0880 File Help Communication Setup Config Test Calibration CALIBRATION Input Input Cal Instructions Full Scale Output Output Cal Instructions Full Scal FACTORY SETTINGS Restore Factory Calibration Restore to Factory Default CALIBRATION STATUS No Error 2 r TT335 Configuration Software m File Help Communication Setup 1 0 Config Test Calibration CALIBRATION Input Input Cal Instructions ET Dust 17335 Config X Connect a presicion resistance of 100 00 ohms to the transmitter input amp 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 CALIBRATION STATUS No Error Dirge Se 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 Cal
30. be adjusted The output type and e solated Output range are user configured Power for the isolated input and isolated output circuits e Input circuit is common to is provided via an isolated flyback converter that operates on voltage wired to the USB ground power terminals at TB4 or wired to optional bus power terminals along the DIN rail Universal output current Setup involves selecting the input type lead break direction temperature units or voltage output range current or voltage filter level and choosing 1 0 Scaling values 1 0 scaling can also be done in reverse to produce a reverse acting output signal Refer to the block diagram above to gain a better understanding of how this transmitter works The input USB output and power circuits are all isolated from each other This transmitter does not draw power from USB and 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 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 and clipping any negative range Acromag Inc Tel 248 295 0880 23 http www acromag com Model TT335 0700 TROUBLESHOOTING Diagnostics Table Before
31. bus connector Acromag Model 1005 063 and a bus terminal block Acromag 1005 220 or 1005 221 This optional method can allow several modules to share a single power supply without wiring to each individually Power connections are isolated from input and output The supply voltage should be from 12 32VDC This voltage must never exceed 36VDC peak damage to the transmitter may result Variations in power supply voltage between the minimum required and 32VDC maximum has negligible effect on transmitter accuracy Note the placement of earth ground at input power The power cable shield and DC should ideally be grounded closest to the transmitter Only one end of the connection should be grounded never both CAUTION Risk of Electric Shock More than one disconnect switch may be required to de energize this equipment before servicing IMPORTANT External Fuse If the transmitter is powered from a supply capable of delivering more than 2 5A to the transmitter it is recommended that this current be limited via a high surge tolerant fuse rated for a maximum current of 2 5A or less for example see Bel Fuse MJS or RJS fuse types MODEL TT33X 0700 POWER WIRING UNIT IS DC POWERED ONLY AT 12 TO 32VDC INPUT SIDE TOP VIEW OUTEUT amp POWERSIDE OUTPUT amp POWER SIDE TBI NON M Jm NEUT ANY MODEL TT33X 0700 POWER DN BUS CONNE
32. 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 makes 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 TT335 0700 GETTING STARTED DESCRIPTION Key Features Application For additional information on these devices and related topics please visit our web site at www acromag com Also see whitepaper 8500 917 The Basics of Temperature Measurement Using RTDs Acromag Inc Tel 248 295 0880 4 RTD Resistance Thermometer Transmitter w USB The TT335 0700 is an ANSI ISA Type 4 transmitter designed to interface with RTDs Resistance Temperature Detector or resistive elements isolate the input signal and modulate a DC current or DC voltage signal at its output 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
33. do not exceed 36VDC or damage to the transmitter may result Apply power to the transmitter before connecting to USB You will not be able to configure or calibrate the transmitter without power applied as this transmitter does not use USB power Connect to PC via USB Connect the transmitter to the PC using the USB isolator and cables provided in Configuration Kit TTC SIP refer to Electrical Connections section You may omit the isolator if you are using a battery powered laptop PC to connect to the transmitter or if your input source is not already grounded Now that you have made your connections and applied power you can execute the TT335 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 TT335 0700 Connections Eile Help DEVICE SELECT Device Manufacturer Status Communication Setup 1 0 Config Test Calibration TT335 0700 0000001 M Model Serial Number Select device then click open File Help Communication Setup 1 0 Config Test calibration DEVICE SELECT Device Model Serial Number Manufacturer Status TT335 0700 0000001 zx Close 11335 0700 0000001 Acromag Inc Device opened successfully Reset Device Acromag Inc
34. drawing below Transmitter input signal is isolated from output Three wire 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 MODEL TT335 0700 IN
35. e Added resistance Input Ranges 25 900 2250 and 4500 Ohms Updated accuracy 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 134 http www acromag com
36. eft most terminals on the left Observe proper polarity YOU CAN OPTIONALLY CONNECT POWER TO THE DIN RAIL BUS CONNECTOR ALONG THE DIN RAIL USING THE OPTIONAL TERMINALS AS SHOWN 35mm DIN RAIL LEFT DIN RAIL BUS POWER DC lt DC amp FUSE DC SUPPLY 12 32V N FEMALE TERMINAL BLOCK MALE TERMINAL BLOCK LL EARTH ACROMAG 1005 220 ACROMAG 1005 221 GROUND LEFT SIDE CONNECTION RIGHT SIDE CONNECTION CAUTION DO NOT EXCEED 36VDC OR DAMAGE TO THE UNIT MAY RESULT NOTE IT 15 RECOMMENDED THAT wey SUPPLIES CAPABLE OF SOURCING c MORE THAN 2 5A TO THE UNIT BE FUSED WITH A HIGH SURGE TOLERANT FUSE Earth Ground Connections The module housing is plastic and does not require an earth ground connection It does include a special connector that makes functional contact with the DIN rail if the DIN rail is grounded but do not rely on this connection for earth ground The internal input output and power circuits are electrically isolated from each other allowing these circuits to be individually earth grounded as indicated If the module is mounted in a metal housing a ground wire connection is typically required for the enclosure and the metal enclosure s ground terminal green screw should be connected to earth ground using suitable wire per applicable codes See the Electrical Connections Drawings for Input Outp
37. etrieves 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 the 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 Ifyou select a RTD type the output will be linear with respect to the sensor temperature e f 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 f 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
38. f SHIELD L GROUND SEE NOTE 1 SEE NOTE 2 JUMPER TO L NOTE LEAD WIRE RESISTANCE THE RESISTANCE OF THE AND LEAD WIRES WILL CONTRIBUTE A POSITIVE SHIFT IN THE RTD MEASUREMENT THE DEGREE AMOUNT SHIFTED WILL BE THE RTD TEMPERTURE EQUIVALENT OF THE TOTAL RESISTANCE OF THE AND LEADS NOTE 1 SENSOR GROUND INPUT SENSOR WIRING 3 WIRE RTD SHIELDED CABLE JUMPER 4 TO H BOTTOM VIEW INPUT SIDE 23 m t 0 ce NC Hl D z 0 0 i OPTIONAL SHIELD Hy L GROUND 3 SEE NOTE 1 SEE NOTE 2 ne NOTE LEAD WIRE RESISTANCE THE LEAD WIRE RESISTANCE WILL BE COMPENSATED FOR AS LONG AS THE RESISTANCE OF THE AND L LEADS ARE MATCHED ANY UNBALANCE WILL CONTRIBUTE A SHIFT IN THE RTD MEASUREMENT INPUT SENSOR WIRING RESISTANCE DECADE BOX 4 WIRE CONFIGURATION INPUT SIDE TT SHIELD
39. f this transmitter USB isolation is recommended for safety and noise suppression reasons but required when the input signal is grounded i e when non insulated or grounded sensors are used Acromag model USB ISOLATOR may be used to isolate the USB port or optionally a different USB signal isolator that supports USB Full Speed operation 12Mbps 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 Thus an isolator is required when the input signal is grounded and the transmitter is connected to the USB port of an earth grounded PC 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 13 http www acromag com Model TT335 0700 RTD Resistance Thermometer Transmitter w USB CONFIGURATION SOFTWARE Quick Overview Click Open to connect to the TT335 0700 and the software will look similar to the following Model 7335 0700 Serial Number 0000001 Manufacturer Acromag Inc Status Device opened successfully Reset Device 335 Configuration Software File Help Communication Setup 1 O Config Test Calibration CONFIGURE 1 0 Input Options Input Type RTD Pt100 Input Range alpha 0 00385
40. g Inc Tel 248 295 0880 125 http www acromag com Model TT335 0700 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 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 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 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 trans
41. h Ground Connections iii cueste du PO pci SERERE ku E eR T CUEL IRE UR DR RDUM DX DEAF 12 USB CONNGCUONS eee 13 CONFIGURATION SOFTWARE 525358599 RESR TE MEOxE AF ES 14 Quick OVervVieW reru on uUo eu NR i 14 OPERATION STEP BY STEP Y ko Data pn Y Ur Yn ka Cin 16 Sirene 16 en IU oe ire memento er ee eer 18 Calibration Optional 20 RTD Resistance versus Temperature 22 BLOCK ET NER 23 How TE phcmeett c 23 TROUBLESHOOTING NUT RR UTE NM CAS 24 Easier fe 24 Service amp Repair Assistance ecce ee eeee eese ee eese eene ee sa st 25 Acromag Inc Tel 248 295 0880 2 http www acromag com Model TT335 0700 RTD Resistance Thermometer Transmitter w USB Software Interface Package oo rinde roro Dane dedu n e 26 USB DICH 26 USB cime CEU 26
42. 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 TT335 0700 RTD Resistance Thermometer Transmitter w USB RTD Resistance versus Temperature Temperature in Ohms 1000 Platinum RTD 1200 100 TEMP C Nickel RTD Copper RTD 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 10
43. ial Self extinguishing polyamide UL94 0 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 Storage Temperature 40 C to 85 C 40 F to 185 F Relative Humidity 5 to 95 non condensing Isolation Input USB output and power circuits are all 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 25
44. ibration 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 selections 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
45. 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 Power CAUTION Do not exceed 36VDC peak to avoid damage to the transmitter Terminal voltage at or above 12V minimum must be maintained across the transmitter during operation Acromag Inc Tel 248 295 0880 RTD Resistance Thermometer Transmitter w USB 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 its power connection via DIN rail bus or power terminal but not USB As such power must be connected when the transmitter is connected to USB 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 po
46. ith 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 universal output signal is isolated from the input and power and will drive current or voltage signals for the ranges 20 0 20 4 20mA 10V 0 10V 5V and 0 5V The output of this transmitter is unique in that it can drive either current or voltage under digital control using the same terminals http www acromag com Model TT335 0700 Mechanical Dimensions Modules may be mounted to 35mm T type DIN rail 35mm type EN50022 and side by side on 17 5mm 0 7 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 RTD Resistance Thermometer Transmitter w USB 114 5 4 51 NITET 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
47. mitter 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 126 http www acromag com Model TT335 0700 SPECIFICATIONS Model Number Model TT335 0700 e Signal Transmitter e isolated RTD Input e Four Wire Powered e CE Approved e Includes UL cUL Class 1 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 335 0 Series 1 J le le TT Thin Transmitter Model 335 RTD Resistance Element Reserved Power 7 4 Wire DC Powered Approvals 0 UL cUL Class 1 Division 2 Approvals Pending Additional Approvals 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 calibratio
48. n 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 4 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 filtering 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 effect 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 27 http www acromag com Model TT335 0700 RT
49. nsmitter 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 input 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 Connect Output Connect an output load to the transmitter appropriate for either current or voltage as required by your application You will need to measure the output current or voltage accurately in order to calibrate the output of the transmitter You could connect a current meter in series with the load to read the output current directly or a digital volt meter in parallel with the load to measure output voltage Alternatively you could simply 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 Calibration amp Configuration Connections Connect Power Wire 12 32VDC power to the transmitter at TB4 as shown in the Electrical Connections section Optionally you may wire power to the bus terminal as shown in the optional power connections drawing In either case
50. nt of the bus power connector is to allow several modules to conveniently share a single supply the bus power connector may also be used to redundantly power modules allowing a backup supply to maintain power to the module s should the main supply at TB4 fail This transmitter comes equipped with the bus connector 1005 063 shown below This connector allows modules to snap together side by side along the DIN rail and share these connections To complete connection to power an optional bus terminal block is needed Acromag 1005 220 for left side or 1005 221 for right side connections Refer to the figure on the following page which shows how to wire power to the optional bus connector using these connectors TT300 TT300 HH TT300 TT300 H Series Series Series Series Series Series 35mm DIN Rail DIN Rail Bus Connector Acromag 1005 063 Included with Module Acromag Inc Tel 248 295 0880 11 http www acromag com Model TT335 0700 RTD Resistance Thermometer Transmitter w USB Optional Bus amp Redundant Power Connections The figure below shows how to wire power to the optional bus terminal block when mated to the bus connector Note that power is wired to the rightmost bus terminals on the right or the l
51. o 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 immediate to Over Range 105 or Under Range Limit 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 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 out
52. put 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 TT335 0700 RTD Resistance Thermometer Transmitter w USB Diagnostics Table POSSIBLE CAUSE POSSIBLE FIX Cannot Calibrate Input Channel 15 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 Please refer to Acromag s Service Policy and Warranty Bulletins or contact Acromag for complete details on how to obtain repair or replacement Acroma
53. r 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 available software control of this transmitter Acromag Inc Tel 248 295 0880 33 http www acromag com Model TT335 0700 REVISION HISTORY RTD Resistance Thermometer Transmitter w USB The following table details the revision history for this document Release Date Version 27 SEP 2013 EGR DOC JMO KLK Description of Revision Initial Acromag release 16 OCT 2013 JMO KLK Updated Simplified Diagram Updated Input Reference Test Conditions was Four wire configuration 12 NOV 2013 JMO KLK Added MTBF Reliability Prediction 30 NOV 2013 JMO ARP Table 1 Input Ranges amp Accuracy Note 1 modified 16 DEC 2013 JEB ARP Removed P O Box from address 21 FEB 2014 Acromag Inc Tel 248 295 0880 CAP ARP JMO ARP e Added cULus Mark to this model removed pending e Updated Configuration section Added instructions for new Input Ranges Updated Input Range tabl
54. renheit 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 i e 20mA OmA 4mA 10V or OV depending on the output range selected Also set the input range Full Scale i e 20mA 10V or 5V depending on the output range selected You can optionally swap 1 0 Scaling values to configure a reverse acting output response if desired Note Approximately 596 under range and over range is built into each output range selection If the 1 0 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 I 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 displ
55. rst make sure the selected Output Range you wish to calibrate has been selected on the 1 0 Config tab Additionally 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 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 For current outputs 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
56. to RTD Resistance versus Temperature section for an explanation of alpha value 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 Pt 1000 2000 5000 10000 Ni 1200 Minco 7 120 Acromag Inc Tel 248 295 0880 28 http www acromag com Model TT335 0700 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 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 diminishes 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 o Huh 107 325sps 42 93sps 12 63sps 1 665sps Noise Rejection Common Mode Varies with input and input filter selection between 92dB no filter
57. 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 TT335 0700 Quick Overview 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 message pertaining to the item you pointed to File Help Communication Setup Config Test Calibration CALIBRATION Input Input Cal Instructions Output Output Cal Instructions FACTORY SETTINGS Restore Factory Calibration Restore to Factory Default CALIBRATION STATUS No Error 335 Configuration Software File Help Communication Setup Config Test Calibration CALIBRATION Input Input Cal Instructions Fulkscale T1335 Config Connect a presicion resistance of 100 00 ohms to the transmitter input bn ati Click OK to sub or Cancel to stop calibrati Note All Platinum 100 Ohm RTDs Nickel RTD and 500 Ohm Resistance Input Types will be automatically calibrated ok CALIBRATION
58. ut and Power and note the position of earth ground Earth ground should be applied at the input power minus terminal DC The input and output circuits are shunted to earth ground applied at the power minus terminal via internal isolation capacitors Avoid inadvertent connections to earth ground at points other than those indicated as this could drive ground loops and negatively affect operation 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 12 http www acromag com Model TT335 0700 USB Connections RTD Resistance Thermometer Transmitter w USB 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 TT SERIES USB TRANSMITTER CONNECTIONS USED FOR CONFIGURATION AND CALIBRATION OF THE TRANSMITTER IN A SAFE OR ORDINARY LOCATION
59. wer and data lines USB Connector 5 pin Mini USB B type socket Hirose Electric UX60 MB 5S8 m mem Differential Data Note Most Host Personal Computers except battery powered laptops will connect 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 Power Supply Connect at TB4 or via DIN Rail Bus 12 32VDC SELV Safety Extra Low Voltage 1 3W maximum Observe proper polarity Reverse voltage protection is included Current draw varies with power voltage as follows currents indicated assume a current output is driving 21mA into the load Power Supply Voltage TT335 0700 Current Power Supply Effect Less than 0 001 of output span effect per volt DC change 31 http www acromag com Model TT335 0700 Enclosure amp Physical Environmental RTD Resistance Thermometer Transmitter w USB General purpose plastic enclosure for mounting on 35mm T type DIN rail Dimensions Width 17 5mm 0 69 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 14 stranded or solid copper wire Program Connector USB Mini B type 5 pin See USB Interface Case Mater
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