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8500996 TT334-0700 User`s Manual

1. Acromag Inc Tel 248 295 0880 10 http www acromag com Model TT334 0700 Thermistor Potentiometer Rheostat 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 left 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 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 IS RECOMMENDED THAT wey SUPPLIES CAPABLE OF SOURCING tc c 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
2. INPUT SIDE INPUT SIDE OUTPUT amp POWER SIDE SS 1 2 3 rBi TB3 Nc MAN n D ial ial vo S a m Laie POWER aw MODEL TT334 0700 5 h c A NC I I I D BUS CONNECTOR S OPTIONAL POWER Ss ferelejefe DIN RAIL SPRING CLIP BOTTOM VIEW INPUT SIDE INPUT SENSOR INFORMATION POTENTIOMETER A 3 WIRE VARIABLE RESISTOR USED TO FORM A VOLTAGE DIVIDER VOLTAGE IS MEASURED RATIOMETRICALLY AT WIPER LEAD WITH RESPECT TO INPUT EXCITATION AND GROUND VARIATIONS DUE TO SENSOR LEAD WIRE RESISTANCE AND CHANGE IN RESISTANCE OVER TEMPERATURE ARE NULLIFIED BY USING A TB1 INPUT RATIOMETRIC MEASUREMENT TECHNIQUE THERMISTOR A 2 WIRE SENSOR THAT VARIES RESISTANCE WITH SENSED TEMPERATURE INPUT RESISTANCE FORMS A VOLTAGE DIVIDER WHICH eee IS USED TO CALCULATE THE SENSED TEMPERATURE BY COMPARING 3 Nc 4 5 6 THE MEASURED RESISTANCE WITH KNOWN THERMISTOR NPUD CHARACTERISTICS SENSOR LEAD WIRE RESISTANCE WILL CONTRIBUTE A NEGATIVE SHIFT TO THE SENSOR MEASUREMENT NC RHEOSTAT A 2 WIRE VARIABLE RESISTOR USED TO FORM A VOLTAGE S Nc DIVIDER VOLTAGE IS MEASURED WITH RESPECT TO KNOWN INPUT I IMPEDANCE TOTAL RESISTANCE OF RHEOSTAT IN ORDER TO NC CALCULATE THE SENSOR RESISTANCE SENSOR LEAD WIRE I RESISTANCE WILL CONTRIBUTE A POSITIVE SHIFT TO THE SENSOR MEASUREMENT
3. 7 http www acromag com Model TT334 0700 Thermistor Potentiometer Rheostat Transmitter w USB Output Connections DC Current or Voltage Output connections are polarized Current is output from Output and returns to Output Voltage output is positive at Output NOTE e 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 P Note the placement of earth ground The output cable shield and return 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 h CURRENT OUTPUT ccc I TBf TB3 T9 gt I MAN OUTPUT d QG SHIELDED CABLE m 97 lt 8 Mese S ise tii MAX RESISITANCE 525 Gres Cb 4 MAX CAPACITANCE
4. SS BOTTOM INPUT SIDE ELECTRICAL CONNECTIONS TILT MODULE UPWARD TOWARDS RAIL AND HOOK ONTO UPPER 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 TT334 0700 Thermistor Potentiometer Rheostat Transmitter w USB Sensor Input Connections MODEL TT334 07 00 INPUT SENSOR W
5. 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 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 TT334 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 Thermistor Potentiometer Rheostat Transmitter w USB The TT334 0700 is an ANSI ISA Type 4 transmitter designed to interface with thermistors and
6. BUS CONN CD Nc 4 ID oumur aia CD Nc i rx E 1i CONVERTER 15V INPUT POWER TEL ipd 43 3V LDO The TT334 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 an SPI bus 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 load connections only the load resistance must be adjusted The output type and range are user configured Power for the isolated input and isolated output circuits is provided via an isolated flyback converter that operates on voltage wired to the power terminals at TB4 or wired to optional bus power terminals along the DIN rail Setup involves selecting the input type lead break direction temperature units output range current or voltage filter level and choosing I O Scaling values I O 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 o
7. Kelvin 15 1300 Resistance Multiplier 12 2600 10 0000 8 1940 6 7520 5 5920 4 6550 Display Graph 3 8930 3 2700 2 7600 xl Ohms x1000 KOhms validation check Send Table to Unit 2000 j 2000 2 9000 9100 0200 5400 3100 4900 4600 Tan n Table Preset Template 40 150 A10 Template 40 150 A5 Template 0 150 410 Template 0 150 A5 R25 22520 B25 85 3978 R25 2795Q B25 85 4076 R25 2752Q B25 85 4074 R25 3KQ B25 85 3976 R25 5kKQ p2 R25 30KQ B25 85 3943 Custom User Table Use Steinhart Hart Coeff Steinhart Hart Coefficients Enter the Steinhart Hart coefficients specific to your thermistor in the input fields below The Thermistor Resistance Temperature table will be automatically updated based on the Steinhart Hart coefficients submitted Note Input fields are pre scaled by the multiplier value displayed to the right of each field For example to submit 0 001468 For coefficient A enter 1 468 in the input field Steinhart Hart coefficient A Steinhart Hart coefficient B Steinhart Hart coefficient C Submit Coefficients x10 3 x10 a4 105 2 C 9 Acromag Inc Tel 248 295 0880 Thermistor Potentiometer Rheostat Transmitter w USB Click the Thermistor Config Table tab to begin configuring the thermistor table After clicking this tab the software retrieves the co
8. 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 9596 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 on a 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
9. Configuration gt 17334 Configuration Software ENT Ele Help Communication Setup I O Config Test Thermistor Config Table Calibration CONFIGURE I O Get 1 0 Config Input Type Potentiometer Sidewire 1009to100kQ Input Options Input Fitering Medium 140 miliseconds x Output Options Break Direction Over range Output Range 4 20 milliamps z Temperature Units Celsius Fahrenheit 1O Scaling 0 00 o 4mA Out 100 00 20mA Out Status No Error Send 1 0 Config TEST YO start Poting Percent h Click Start Polling to poll the input and display its value The LED next to the button will flash when polling is active Click Stop Polling to discontinue polling 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 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 Thermistor Potentiometer Rheostat Transmitter w USB 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
10. ee ecce eese eese esee eene ene 10 Earth Ground Connections iouioe cd eoe Iui dn rape SERERE YE E peu T CUL o IRE EE dEN E VR UR DR RTT AU DX ECT US EF EUE MR 11 USB CONNGCUONS eee 12 CONFIGURATION SOFTWARE iss essusu autrui bs Rr uS R oa PRENNE TENES CER RENR TE MEOEEPEN TES 13 Quick OVerViIe W sisi oce eo Dee ena uea s ie eu en reae neu Svo oue a Ue eas eu reru Turo ee Fave ev vue ue ao Un uia n Queue ceu on FuV EVER EEEE aas 13 OPERATION STEP BY STEP ecisxs ent euvak vus VusY CREE CI KS eR COPS Y PER Fux U Cin IL eR EE a0 S 15 Sirene 15 SAT LURE NI PR 17 Calibration Optional ic ceneonssixecsacseenannasecscanks ERR PARE RKEP aesivecnnisbacsmenstotinansesaneenesieiaanenioenenrinns 21 Thermistor Resistance versus Temperature eceeeee eee eee eene eene nn eene nnne nnne nennen nnn 23 BLOCK DIAGRAM i cissoxvav a ve ex ve rk EE ER ERE EEKVENEK RE eR V eX EVEN PENES endore si Enc TRVESNERE NES VE 24 How TE WOES sis casi t c E SES 24 TROUBLESHOOTING cancausetecanccvarsunevennseateenusancsedssnsuvnsancatvedsscontasuseuecness 25 Eam cipE fe 25 Service amp Repair Assistance eeeeee esee eese esee eese eese nennen nene s ntes anth ssa st nune sese senes ua 26 Acromag Inc Tel 248 295 088
11. 0 3539 0 4441 0 4373 0 4714 0 7857 0 15130 0 46670 0 2814 0 3511 0 3457 0 3748 0 6247 0 12260 0 37300 0 2252 0 2795 0 2752 0 3000 0 5000 0 10000 0 30000 0 1815 0 2240 0 2205 0 2417 0 4029 0 8194 0 24270 0 1471 0 1806 0 1778 0 1959 0 3266 0 6752 0 19740 0 1200 0 1465 0 1443 0 1597 2 2663 0 5592 0 16150 0 983 8 1195 0 1177 0 1310 0 2184 0 4655 0 13280 0 811 3 980 0 965 0 1081 0 1801 0 3893 0 10970 0 672 5 809 0 796 0 895 8 1493 0 3270 0 9109 0 560 3 671 0 660 0 746 3 1243 9 2760 0 7599 0 468 8 559 0 551 0 624 7 1041 0 2339 0 6367 0 394 1 469 0 462 0 525 4 875 7 1990 0 5359 0 332 9 395 0 389 0 443 9 740 0 1700 0 4529 0 282 5 334 0 329 0 376 7 628 1 1458 0 3843 0 240 8 283 0 279 0 321 1 535 4 1255 0 3273 0 206 1 241 8 238 1 274 9 458 2 1084 0 2799 0 177 1 207 1 203 9 236 3 393 7 939 3 2402 0 152 8 178 0 175 3 203 8 339 6 816 8 2069 0 132 2 153 6 151 3 176 4 294 0 712 6 1788 0 115 0 133 1 131 0 153 2 255 4 623 5 1550 0 100 2 115 7 113 9 133 6 228 7 547 3 1348 0 87 7 100 9 99 4 116 8 194 7 481 8 1176 0 77 0 88 3 87 0 102 5 170 8 425 3 1029 0 67 8 77 5 76 4 90 2 150 3 376 4 903 0 59 8 68 3 67 3 79 6 132 6 334 0 794 6 53 0 60 3 59 4 70 4 117 4 297 2 701 2 47 0 53 4 52 6 62 5 104 2 265 1 620 3 41 9 47 5 46 7 55 6 92 7 237 0 550 2 Beta B is an indication of the slope of the curve which represents the relationship betwee
12. 0 Config TEST 1 0 start Poting Percent h Click Start Polling to poll the input and display its value The LED next to the button will flash when polling is active Click Stop Polling to discontinue polling 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 Acromag Inc Tel 248 295 0880 Thermistor Potentiometer Rheostat 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 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 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 S
13. 19 BP 20 ep 21 Status BP 1 40 00 2 35 00 3 30 00 BP4 25 00 BP5 20 00 BP6 15 00 BP7 15 00 25 00 No Device Connected 239 8000 179 2000 135 2000 102 9000 78 9100 61 0200 471 5400 37 3100 29 4900 23 4600 18 7900 15 1300 12 2600 10 0000 8 1940 6 7520 5 5920 4 6550 3 8930 3 2700 2 7600 Table Preset R25 10KQ p25 85 3694 Table Options Number of BP 29 10 00 5 00 0 00 5 00 10 00 31 Temperature Units Celsius Fahrenheit Kelvin Resistance Multiplier 2000 x1 Ohms 9 x1000 KOhms Validation Check Display Graph Send Table to Unit 30 00 35 00 40 00 45 00 50 00 55 00 60 00 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 Validation Color Key Acromag Indication The break point contains a duplicate temperature duplicate resistance invalid temperature zero resistance or the resistance does not decrease with increasing temperature Fix the break point to proceed Linear regression was performed on this break point instead of logarithmic regression The break point is still valid and will be included in the internal representation Inc Tel 248 295 0880 Thermistor Potentiometer Rheost
14. 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 22 http www acromag com Model TT334 0700 Thermistor Potentiometer Rheostat Transmitter w USB Thermistor Resistance versus Temperature Temperature in Ohms R25 22520 R25 27950 R25 27520 R5 30000 R55 50000 R25 10KQ R25 30KQ Bases 3978 25a 4076 B2sja 4074 Bosyas 3976 Bsyas 3920 B25 85 3694 B25 85 3943 75790 0 100865 0 99326 0 101000 0 168300 0 239800 0 884600 0 54660 0 72437 0 71332 0 72810 0 121400 0 179200 0 649300 0 39860 0 52594 0 51791 0 53100 0 88530 0 135200 0 481000 0 29380 0 38583 0 37994 0 39130 0 65240 0 102900 0 359600 0 21870 0 28582 0 28146 0 29130 0 48560 0 78910 0 271200 0 16430 0 21371 0 21044 0 21890 0 36490 0 61020 0 206200 0 12460 0 16120 0 15873 0 16600 0 27670 0 47540 0 158000 0 9534 0 12261 0 12073 0 12700 0 21170 0 37310 0 122100 0 7355 0 9399 0 9256 0 9796 0 16330 0 29490 0 94980 0 5719 0 7263 0 7153 0 7618 0 12700 0 23460 0 74440 0 4482 0 5658 0 5572 0 5971 0 9951 0 18790 0 58750
15. SOFTWARE Quick Overview Click Open to connect to the TT334 0700 and the software will look similar to the following T1334 Configuration Software ea File Help Communication Setup 1 0 Config Test Thermistor Config Table Calibration DEVICE SELECT Device r334 0700 0000001 im Model 77334 0700 Serial Number 0000001 Manufacturer Acromag Inc Status Device opened successfully Reset Device e T1334 Configuration Software Eg File Help Communication Setup I O Config Test Thermistor Config Table Calibration CONFIGURE 1 0 Get 1 0 Config Input Options Input Type Potentiometer Slidewire 1002 to 100KQ z InputFiterng Medium 140miliseconds 5 Output Options Break Direction Output Range 4 20 miliamps x Temperature Units C Fahrenheit Kelvin IO Scaling 0 00 Yo 4mA Out 100 00 20mA Out Status No Error Send I O Config TEST 1 0 se Percent Click Start Poling to poll the input and display its value he LED next to the button wil flash when polling is active Click Stop Polling to discontinue polling the input Acromag Inc Tel 248 295 0880 Thermistor Potentiometer Rheostat Transmitter w USB 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 a
16. 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 25 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 TT334 0700 Thermistor Potentiometer Rheostat Transmitter w USB Diagnostics Table POSSIBLE CAUSE POSSIBLE FIX Cannot Calibrate Input Channel Cannot Measure Input Temperature or Resistance 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 Ac
17. its value by typing a number on the keyboard To save the value typed into the cell hit the enter key or advance the selection to a different cell You may select a range of cells using the mouse cursor Break points should characterize the thermistor over its range of application Using more break points will allow the software to calculate a more accurate internal representation NOTE It is not necessary to enter the break points such that they are in ascending or descending order of value The software automatically sorts the break points internally Validation Check Click the Validation Check button to have the software check the break points in the Thermistor Table for erroneous or extraneous values Break points that are flagged will be highlighted using the color scheme detailed in the Validation Color Key on the left 20 http www acromag com Model TT334 0700 Calibration Optional m n 17334 Configuration Software Le foto File Help Communication Setup I O Config Test Thermistor Config Table Calibration CALIBRATION Input Input Cal Instructions Output Output Cal Instructions FACTORY SETTINGS Restore Factory Calibration Restore to Factory Default CALIBRATION STATUS No Error TT334 Configuration Software 9 5 File Help Communication Setup I O Config Test Thermistor Config Table Calibration CALIBRATION Input Input Cal instructions Fassa Outp
18. 0 2 http www acromag com Model TT334 0700 Thermistor Potentiometer Rheostat Transmitter w USB Software Interface PackaBe i ooi edere vx ED da e CES DE eeu Doe eE HERE AD EUER AK PE edu LE EDUREE NER 27 WRAT Io ETE Tp P 27 USB Ee eem T RE 27 USB A mint B Cable ito coi o SAT SUR CE e AERAR T QUEE UE XAR SAARET OAKS e E DIA RAPI chanteuse QUEP OR E KE 27 SPECIFICATIONS esee tie nea REA Sa RRRMIR NEA RAVEGNNERNVAR E RERIGR ERR RES AERA IQA VERA V EAQUE lO Model ITI UD Tz eL 28 In DUC oii ore eoe eren rarae ret vxuS E te eost to EE Nae reves odes covcciusestessenteecssouesesssasssacsiaecsesis 28 OUT DUE cis iicciuncseesteudeasdsaasconeseuscouusunnceseteudus cOhedesescoeensSccbusdeesseusdes cuasvseu stews condsundewsstandensSeanee 30 USB IBEBEIACO cis sp ae toscGimioba eG naar a Ea raa raaa 32 I lp M 32 Enclosure amp Physical iioii o ERE ERE ERE OO H01 oaa UTE CUR TEH De EAE ER aO M bL EK LESUR ESEETO CRT AES 33 Environmental nr Dom Erie E n on NUEVE ead V o eam Sei due Re PEE Ea S 33 Agency Approvals iro iiie ETE coed textl oer aiXe Ex eo Mov dE EVER ERE ARR BUL VIP Eor ERE P SA Per ELze Rie 34 Reliability Predictiolc iion Cer o CE OP ek ialoe a eo DE Geile tinea 34 Configuration Controls uiii eut pir Eoke enaa RAE QI GE tinea aeaa EEEE AEE O BUR CIELRDU Re ed DIN AE 34 REVISION HISTORY soni ex VERRE EREPES AERIS NEMRERAGAP SS AIA ERA EARN EE NUES SARRERGAR RO BARI DD
19. 100uF bal a cL W MS j MAXINDUCTANCE 15mH INPUT POWER m B ANY MODEL TT33X 0700 EARTH CURRENT OUTPUT LOAD GROUND DRIVES 20mA INTO 525 MAX AT 4 OR 2 0 20mA 4 20mA 20mA N a T BUT NOT BOTH OR VOLTAGE OUTPUT V SHIELDED CABLE SUE SS GACE Pium p MIN RESISITANCE 1000 wo PTL MAX CAPACITANCE 100uF Mem 2 VOLTAGE OUTPUT LOAD O EARTH DRIVES 10V INTO 1K MIN a lt 9 t GROUND 0 10V 0 5V 5V amp 10V DIN RAIL AT 4 OR 2 SBRING CLIP BUT NOT 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 t
20. 7 5mm centers 12 32V DC power is supported via terminals on the module or optionally via power wired to its DIN rail bus connector This model accepts thermistor and potentiometer rheostat inputs and isolates the input signal allowing it to mate with grounded or non grounded input signals The universal output signal is isolated from the input and power and will drive current or voltage signals for the ranges 20mA 0 20mA 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 Acromag Inc Tel 248 295 0880 4 http www acromag com Model TT334 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 CAUTION 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 Thermistor Potentiometer Rheostat Transmitter w USB 114 5 4 51 Bui i 2 a DIMENSIONS ARE IN MILLIMETERS INCHES DIN Rail Mounting a
21. ALIBRATION STATUS No Error 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 Acromag Inc Tel 248 295 0880 a 7 AEN NN E esl Define the Thermistor Characteristics Here sts I ORE erit Coro ro itn e Optional Click the Read Table from Unit button to retrieve the THERMISTOR RESISTANCE TENPEPATURE TABLE Thermistor table stored on the currently connected transmitter femmes emo reae Selectthe Table Preset Templates will automatically fill out the rna m _e temperature column ETE nm Visum e Set the number of Break points i e the number of rows in the pes ism suam iem n a Thermistor table rim mm jc e Select the temperature units to use in the Thermistor Config Table mun nun ndn e Selectthe resistance multiplier This determines if the Thermistor MBs Sim Resistance Nuper Config Table resistance is in Ohms or Kilohms EE m i0 Clickthe Validation Check button to have the configuration Em Rm a software check the Thermistor table breakpoints for extraneous or Bm m ERE erroneous values Breakpoints that need attention are highlighted Em T Submit the Thermistor table to the transmitter by clicking the Send ue Table to Unit button to write the table to the non volatile EEPR
22. Acromag S4 THE LEADER IN INDUSTRIAL I O USB Programmable DIN Rail Mount Thin Transmitter Model TT334 0700 NTC Thermistor Potentiometer Rheostat 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 996E Model TT334 0700 Thermistor Potentiometer Rheostat Transmitter w USB Table of Contents GETTING STARTED DESCRIPTION icevsesvnstvnF Ava EEEVE a uERRPENVERY EATER VR SEEKYReTA IA sanova EUN UP EA VR NEUES RE VA RV ENE 4 AUI TITEL ICI Z LL ILI LILITETINTS 4 hri Me 4 Mechanical DIMENSIONS mee M 5 DIN Rail Mounting amp Remowval uie terrd ihrer ira pex o Fk e n Ti da evi dA a oV ag deed cv RR 5 ELECTRICAL CONNECTIONS eet env ev eaa vR en RN UN BN ERYR ERE NKN OTI KEY NER VE NUES Un ET EN UAE 6 Sensor Input Connectlofis 1 reor eo eye o eene Save e Seve hioo ya En deetesonshcceetecesveseudhedebis Coecesesceddeutes 7 OUTPUT CONNECTIONS e 8 Power CONNECTIONS eror er nr oto o eoe Ro eee v ese ne epa nea aoa rose ae Ee Oo Ra ee eva v eH vua eiua aa copa FP SER S Ie Deer eo Ea Eee 9 Optional Bus amp Redundant Power Connections
23. IRING SEEN MIN OPTIONAL EARTH GROUND OTE 1 MAX POTENTIOMETE GROUND SEE NOTE 2 NOTE 1 DO NOT GROUND THE INPUT SENSOR IF UNIT IS CONNEC TED TOA GROUNDED PC WITHOUT A USB ISOLATOR NOTE 2 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 OR RHEOSTAT AM THERMISTOR Acromag Inc Tel 248 295 0880 OPTIONAL SHIELD GROUND SEE NOTE 2 j PTIONAL SHIELD L 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 e Transmitter Input Signal is Isolated from Output Inputs are polarized and connections for Thermistors and Rheostats can be swapped H and connections for Potentiometers can be swapped to reverse the direction of the input signal with respect to the direction of the Potentiometer Observe the wiper input W when connecting a Potentiometer Only one input sensor may drive the output at one time NOTE Sensor lead wire resistance will contribute an input shift for Thermistor and Rheostat input types See Input Sensor Information below BOTTOM VIEW
24. OM No Devies Connected memory CALIBRATION Calibrate the Input and or Output if Needed This transmitter has already been factory calibrated If you encounter TEETE i E 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 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 connect input pins together or apply a specific resistance at the input terminals Once you have applied this resistance or connected the correct input pins click the OK button of the prompt to calibrate 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 measurements 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
25. Voltage outputs may drive 1KQ or higher loads while current outputs may drive 5250 or less Select the Temperature Units Select the temperature units to use in the I O Configuration 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 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 I O 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 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 r
26. an 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 TT334 0700 Current Power Supply Effect Less than 0 001 of output span effect per volt DC change http www acromag com Model TT334 0700 Enclosure amp Physical Environmental Thermistor Potentiometer Rheostat 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 4826 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 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
27. appears erratic Calibration Status Bottom of Window The Calibration Status bar at the bottom of the window will display status messages relative to calibration 14 http www acromag com Model TT334 0700 Thermistor Potentiometer Rheostat 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 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 input at TB1 with pin 3 unused for Thermistors and Rheostats or at TB1 with pins 2 amp 3 unused and TB2 with pin 6 unused for Potentiometers refer to Sensor Input Connections The resistance source must be adjustable over the range desired for zero and full scale Connect Output Connect an output load to the transmitter appropriate for either current or voltage as required by your applic
28. at Transmitter w USB Enter the Number of Break points You can control the number of break points i e rows in the Thermistor table by changing this value The number of break points is limited to a minimum of 3 and a maximum of 50 NOTE More break points allow the software to generate a more accurate internal representation of the thermistor over the ranges that the break points characterize Select the Temperature Units Select the temperature units to use in the Thermistor Config Table You may select Celsius Fahrenheit or Kelvin The table will automatically convert the temperature column from the previous temperature to the selected temperature Select the Resistance Multiplier Select the resistance multiplier You may select x1 Ohms or x1000 Kilohms The table will automatically convert the resistance column from the previous resistance to the selected resistance Editing the Thermistor Table The configuration software maintains a table that allows you to characterize the thermistor sensor that the transmitter will interface with When you enter break points into the Thermistor Table you are providing known values of the thermistor s resistance with respect to the temperature sensed These values are then used by the software to generate an internal representation piece wise linear of the thermistor that can be used by the transmitter Click on a cell to select it When a cell is selected you can modify
29. ation You will need to measure the output current or voltage accurately in order to calibrate 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 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 TT334 Config exe softwar
30. 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 O to 10V 1 part in 59293 168 362uV 0 00168496 5V to 5V 1 part in 31278 319 714uV 0 00319796 Acromag Inc Tel 248 295 0880 31 http www acromag com Model TT334 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 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 t
31. 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 Output 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 11 http www acromag com Model TT334 0700 USB Connections Thermistor Potentiometer Rheostat Transmitter w USB This transmitter is configured and calibrated via configuratio
32. cromag 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 TT334 Config exe Communication Setup First Connect to Transmitter Here e 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 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 Select the Input Type Potentiometer Slidewire Thermistor or Rheostat 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 if applicable e Select the Output Range 5V 10V 0 5V 0 10V 20mA 0 20mA or 4 20mA e Sel
33. e modeled using the Steinhart Hart equation This equation uses 3 coefficients to generate a resistance temperature curve which relates the thermistor resistance to the sensed temperature To assist the generation of break points for the thermistor table the Configuration Software provides a method for entering 3 Steinhart Hart coefficients Select Use Steinhart Hart Coeff from the Table Preset drop down menu to open the Steinhart Hart Coefficients prompt The Steinhart Hart Coefficients prompt contains three input fields one for each Steinhart Hart coefficient Enter the coefficients for your NTC thermistor in the appropriate input fields Notice that each field is already multiplied by a constant value For example the input field for coefficient A is multiplied by 10 Therefore to submit 0 001468 for coefficient A enter 1 468 in the corresponding input field After all 3 Steinhart Hart coefficients have been entered click Submit Coefficients The Configuration Software will then generate a custom Thermistor Resistance Temperature table using the Steinhart Hart equation and the coefficients submitted 19 http www acromag com Model TT334 0700 Configuration File Help Communication Setup I IO Config Test Thermistor Config Table Calibration THERMISTOR RESISTANCE TEMPERATURE TABLE Temperature C Resistance KO Read Table from Unit BP 16 ep BP 18 BP
34. e 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 15 http www acromag com Model TT334 0700 Connections n m TT334 Configuration Software a File Help Communication Setup 1f0 ConfigiTest Thermistor Config Table Calibration DEVICE SELECT Device r1334 0700 0000001 X f Open 1 Model Serial Number Manufacturer Status Select device then click open 4 gt T1334 Configuration Software amm File Help DEVICE SELECT Device Model Serial Number Manufacturer Status Communication Setup 1 0 Config Test Thermistor Config Table Calibration T7334 0700 0000001 Mi TT334 0700 0000001 Acromag Inc Device opened successfully Reset Device Acromag Inc Tel 248 295 0880 Thermistor Potentiometer Rheostat 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 t
35. ect the temperature units to use in the I O Configuration if applicable e Enter the I O Scaling Specify the input temperatures or percentages 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 1 O 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 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 For detailed configuration and calibration procedures see the Operation Step By Step section of the Technical Reference of this manual 13 http www acromag com Model TT334 0700 Quick Overview Thermistor Potentiometer Rheostat Transmitter w USB Thermistor Config Table For Thermistor Input Types Only File Help Communication Setup 1 0 Config Test Thermistor Config Table Calibration CALIBRATION Input Input Cal Instructions Output Output Cal Instructions FACTORY SETTINGS Restore Factory Calibration Restore to Factory Default C
36. eference 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 Thermistor Config Table Thermistor Input Types Only If the transmitter will be interfacing with a thermistor the Thermistor Config Table needs to be updated and or verified Proceed to the next section for instructions on this process 18 http www acromag com Model TT334 0700 Configuration File Help Communication Setup 1 0 Config Test Thermistor Config Table Calibration THERMISTOR RESISTANCE TEMPERATURE TABLE LIN 2 EN ea s EIN l BP 8 BP 9 gen u e n BP 14 BP 15 BP 16 BP 17 BP 18 BP 19 BP 20 BP 21 Status 40 00 35 00 30 00 25 00 20 00 15 00 10 00 5 00 0 00 5 00 10 00 15 00 20 00 25 00 30 00 35 00 40 00 45 00 50 00 55 00 60 00 No Device Connected Temperature C Resistance Ka Read Table from Unit 239 8000 179 2000 135 2000 Table Preset 102 9000 Table Options 78 9100 61 0200 47 5400 37 3100 29 4900 23 4600 18 7900 Number of BP 29 HF Temperature Units Celsius Fahrenheit
37. end 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 Thermistor the output will be linear with respect to the sensor temperature e f you select Potentiometer Slidewire the output will be linear with respect to the percent of input span not temperature and no special linearization will be performed e f you select Rheostat the output will be linear with respect to the input resistance not temperature and no special linearization will be performed Select the Input Filtering You may 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 596 outside the nominal output range selected NOTE Potentiometer input types do not support break direction 17 http www acromag com Model TT334 0700
38. eration 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 34 http www acromag com Model TT334 0700 REVISION HISTORY Thermistor Potentiometer Rheostat Transmitter w USB The following table details the revision history for this document Release Date Version 11 OCT 2013 EGR DOC JMO KLK Description of Revision Initial Acromag release 23 OCT 2013 JMO KLK Added Steinhart Hart Table Preset 12 NOV 2013 JMO KLK Added MTBF Reliability Prediction 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 Input Specifications 35 http www acromag com
39. ering 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 Tm TBI NON M Jm NEUT ANY MODEL TT33X 0700 POWER DN BUS CONNECTOR x TTT OPTIONAL POWER DIN RAIL SPRING CLIP Acromag Inc Tel 248 295 0880 9 5 ps OUTPUT POWER IS ISOLATED FROM SIGNAL INPUT AND OUTPUT CIRCUITS FUSE e T Omm Er AA EARTH m 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 TT334 0700 Thermistor Potentiometer Rheostat Transmitter w USB Optional Bus amp Redundant Power Connections 35mm DIN Rail Power is normally connected to the TB4 power terminals of the transmitter as
40. f 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 24 http www acromag com Model TT334 0700 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 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 Thermistor Potentiometer Rheostat Transmitter w USB i 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 gr
41. he 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 Thermistor Potentiometer Rheostat 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 power and data lines USB Connector 5 pin Mini USB B type socket Hirose Electric UX60 MB 5S8 m eme 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 Hum
42. he load high frequency noise may be reduced significantly by placing a O 1uF capacitor directly across the load as close to the load as possible Acromag Inc Tel 248 295 0880 8 http www acromag com Model TT334 0700 Power Connections Thermistor Potentiometer Rheostat 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 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 e Power connections are isolated from input and output The supply voltage should be from 12 32VDC This voltage must never exceed 36VDC peak or damage to the transmitter may result Variations in power supply voltage between the minimum required and 32VDC maximum has negligible effect on transmitter accuracy e 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 deliv
43. he 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 16 http www acromag com Model TT334 0700 Configuration T1334 Configuration Software Eile Help Communication Setup HO CanfigiTest Thermistor Config Table Calibration CONFIGURE I O Get 1 0 Config Input Options Input Type Potentiometer Slidewire 1002 to 100KQ Input Filtering Medium 140 milliseconds Output Options Break Direction Over range Output Range 4 20 milliamps Temperature Units Celsius Fahrenheit 1 0 Scaling 0 00 o 4mA Out 100 00 20mA Out Status No Error Send 1
44. his includes the effects of repeatability terminal point conformity and linearization but does not include sensor error Acromag Inc Tel 248 295 0880 30 http www acromag com Model TT334 0700 Thermistor Potentiometer Rheostat Transmitter w USB 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 1200ms 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 0 196 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 80ppm C 0 0080 C over the ambient temperature range for reference test conditions see Input Specifications Output DAC Resolution Output is driven by a 16
45. ick the Zero Scale button to open the zero scale configuration pop up 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 pop up 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 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
46. ion 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 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 27 http www acromag com Model TT334 0700 SPECIFICATIONS Model Number Model TT334 0700 e Signal Transmitter e Isolated Thermistor Rheostat and Potentiometer 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 Thermistor Potentiometer Rheostat Transmitter w USB T 334 Series TT Thin Transmitter Model 334 NTC Thermistor Potentiometer Rheostat 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 S
47. mp 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 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 TT334 0700 Thermistor Potentiometer Rheostat Transmitter w USB TT3XX MODULE DIN RAIL MOUNTING AND REMOVAL OUTPUT SIDE TOP ooo TT300 Series 35mm DIN Rail c q Ia
48. n 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 PERSONAL COMPUTER RUNNING WINDOWS OS f POWER OUTPUT HOST PC RUNNING DC POWER ACROMAG SUPPLY CONFIGURATION 12 32V SOFTWARE o USB MiniB MALE MODEL TT3XX TRANSMITTER d ie jJ B USB MiniB Socket e Front Panel of Module HOST TO HOST USB PORT 2 USB 7n 0 TB2 TB og x o Mi INPUT INPUT ES Hd o 4 m USB A MALE z HOST USB SERIAL X PORT CONNECTOR 1 METER USB CABLE USB B MALE Acromag USB A MALE o AT BACK OF PC Model 4001 112 un wy a Lu Refer to Configuration Software Kit Model TTC SIP which includes O rower connection 1 ea Model 4001 113 USB Cable 1 ea Model 4001 112 USB Cable MODELNO USB ISOLATOR 1 ea Model USB ISOLATOR RECOMMENDED 1 ea Configuration Software CDROM 5040 944 WARNING The intent of mati
49. n the resistance and the temperature of a particular thermistor measured under zero power conditions The higher the Beta value the greater the change in resistance per degree C Beta can be calculated as follows T1T2 l Rmi _ _ 298 15 358 15 2252 0 Br yr 5 n n Bosjes 35815 29815 2408 3978 73 Rr2 NOTE T and T must be converted to degrees Kelvin K before using in the formula above Acromag Inc Tel 248 295 0880 23 http www acromag com Model TT334 0700 BLOCK DIAGRAM TT334 0700 SIMPLIFIED SCHEMATIC FILTERING AND DETAIL OMITTED FOR CLARITY 1 25V 30ppm 10K 0 1 TBI o S 7 169 RETO g 8 5 G O ne u z w 82 1K H E v Yo i H E E H E ool 2 OQow E 03V a 3 35mA E o amp 1 25V aay 1 25V dq 3 3V 31 6K Ly A p 0 3V P 10K 0 3V 3 35mA How It Works Key Points of Operation DC Powered e Isolated Power e solated Input e Isolated Output Input circuit is common to USB ground Universal output current or voltage 24b A D CONV Thermistor Potentiometer Rheostat Transmitter w USB 15V H mosi SPI gt CLK sl osm 7 UNIVERSAL n OUTPUT 4 viso DRIVER HIH enn PI ose 45V MEE BUCK gt REG Pos iSOLATEDPOWER aaa ISOLATED FLYBACK CONVERTER AY OY Y 15V BIPOLAR BOOST CONVERTER
50. ng 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 of 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 12 http www acromag com Model TT334 0700 CONFIGURATION
51. nnected transmitter s current thermistor table configuration and displays it similar to the image shown at left If you are connected to a transmitter the initial Thermistor Config Table page represents the current thermistor table 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 Read Table from Unit button to retrieve the transmitter s current thermistor table configuration NOTE If you make any changes to the table or selections indicated the only way to preserve your changes is to write them to the transmitter by clicking the Send Table to Unit button after completing your changes or save them to a file by opening the File menu in the upper left hand corner of the window Optional Select the Table Preset Selecting a preset loads the Thermistor Table with sample values based on popular thermistor sensors See Thermistor Resistance versus Temperature section of this manual for notes on calculating beta B Template presets automatically fill out the temperature column and space the break points by the degrees delta listed in the preset name NOTE Whenever you modify the Thermistor Table the Table Preset will automatically change to Custom to indicate that the table is no longer identical to a selectable preset Using Steinhart Hart coefficients NTC Thermistors can b
52. ound 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 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
53. potentiometers rheostats isolate the input signal and modulate a DC current or DC voltage signal at its output Thermistor sensor excitation linearization and lead break or sensor burnout detection are supported Configuration is performed using Windows software and a USB connection to Windows based PC s Windows XP and later versions only e Fully configurable via USB using Windows software e Thin 17 5mm wide enclosure for high density DIN rail mounting e High measurement accuracy and linearity e NTCThermistors Potentiometers and Rheostats supported e User customizable Thermistor Linearization Table e Thermistor inputs are linearized with respect to temperature e Supports Celsius Fahrenheit and Kelvin temperature units e Up or down scale lead break burnout detection 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 from 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 TT334 transmitter is designed for high density mounting on 35mm T type DIN rails Modules may be mounted side by side on 0 7 inch 1
54. quation For a Thermistor with input resistance Rz Typical Temp Accuracy Thermistor Temp at Rz4 Thermistor Temp at Rz Rry Typical Accuracy 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 43690 for 4 20mA 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 Heh 214 65sps 53 6625sps 13 42sps 1 6775sps Acromag Inc Tel 248 295 0880 29 http www acromag com Model TT334 0700 Output Thermistor Potentiometer Rheostat 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 096 and 10096 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 Input Lead Resistance Effect For Thermistor Rheostat Input Types Shift le
55. re File Help Communication Setup I YO Config Test Thermistor Config Table Calibration CALIBRATION Input Input Cal instructions Zero 5cale Fusce 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 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 Thermistor Potentiometer Rheostat Transmitter w USB Calibration Output Before attempting to recalibrate the output channel first make sure the selected Output Range you wish to calibrate has been selected on the I O 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 cl
56. re Input Impedance Thermistor Rheostat 200MQ typical Potentiometer 15 4MQ typical Acromag Inc Tel 248 295 0880 28 http www acromag com Model TT334 0700 Input Thermistor Potentiometer Rheostat Transmitter w USB 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 amp Accuracy 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 10000 Rin with Rin Input Resistance in Ohms for Thermistor Rheostat input types Potentiometer input types have a fixed input resolution of 32768 due to a ratiometric measurement technique An indication of nominal input resolution is expressed as the number of parts between the input range low and high endpoints Table 1 Input Measurement Accuracy Per Input Type Input Type Input Range Typical Accuracy 0 to 100 Potentiometer ee RET 0 1 of Span 1000 to 100KQ 1000 to 500KO 0 75 of Input Resistance NTC Thermistor 22520 40 C to 100 C 0 1 C 0 18 F 0 1 C 0 18 F NTC Thermistor 30KQ 0 5 C 0 90 F 0 75 of Input Resistance Notes Table 1 t Thermistor Rheostat Accuracy is based on a sensor lead wire resistance of 00 To determine the Typical Accuracy in terms of temperature for custom thermistor input types use the following e
57. romag 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 Acromag Inc Tel 248 295 0880 26 http www acromag com Model TT334 0700 ACCESSORIES Thermistor Potentiometer Rheostat 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 connect
58. 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 intent 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 HH TT300 HH TT300 TT300 H Series Series Series Series Series Series DIN Rail Bus Connector Acromag 1005 063 Included with Module
59. ss than 0 01 per ohm of lead resistance with a max shift less than 0 1 with up to 100 per lead with Input Span gt 25KQ Lead Break Sensor Burnout Detection For Thermistor Rheostat Input Types 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 Noise Rejection Common Mode Varies with input and input filter selection between 86dB 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 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 10 5V 5V to 5V 5 25V to 5 25V Oto 10V 0 5527V to 10 5V Output Accuracy Accuracy is better than 0 05 of span typical 0 196 maximum for nominal input spans T
60. teinhart 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 Potentiometer Slidewire 096 to 10096 input Filtering Medium Output 4 to 20mA ascending R Load 2500 Ambient 25 C Power supply 24VDC Input Excitation Voltage Thermistor Rheostat Set to 1 25V DC with less than 30ppm C drift over temperature current limited to 0 125mA typical Potentiometer Set to 0 3V DC current limited to 3 35mA 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 Response Time See output response time Input Linearization NTC Thermistor Inputs Only Uses Thermistor Config Table Configured using softwa
61. ure 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 You will be prompted to input the zero scale resistance at TB1 TB2 for Thermistor Rheostat input types or connect input pins 4 amp 2 for Potentiometer input types Once you input the zero precisely or connect the input pins click the OK button of the prompt to calibrate zero scale Click the Input Full Scale button of the Calibration Input section You will be prompted to input the zero scale resistance at TB1 TB2 for Thermistor Rheostat input types or connect input pins 4 amp 5 for Potentiometer input types Once you input the zero precisely or connect the input pins click the OK button of the prompt to calibrate zero 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 21 http www acromag com Model TT334 0700 Calibration Optional T7334 Configuration Softwa
62. ut TT334 Config Connect a presicion resistance of 100 00 ohms to the transmitter input Click OK to submit calibration or Cancel to stop calibration CALIBRATION STATUS No Error Acromag Inc Tel 248 295 0880 Thermistor Potentiometer Rheostat Transmitter w USB Submit Thermistor Configuration Table Once you have made the changes to the Thermistor Config Table click the Send Table to Unit button to write them to the transmitter The Thermistor Config Table page will be disabled during the transfer You can read the status of the transfer 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 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 s
63. 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 ee ae Acromag Inc Tel 248 295 0880 33 http www acromag com Model TT334 0700 Agency Approvals Reliability Prediction Configuration Controls Thermistor Potentiometer Rheostat 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 1 021 158 671 601 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 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 Op

8500996 TT334-0700 User`s Manual

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