USER`S MANUAL
Contents
1. r gt A r 2 j L B ME 151T 155H o SET SCREW TRANSMITTER 2 PLACES 5 0 W ATW TLD 127mm DISPLAY eee H LU 0 80 0 76 m 2 5 20 3mm db 19mm eo 63 5mm lt 118 1mm gt lt 127mm ALLOW 5 65 FOR COVER REMOVAL MODEL ATW XPW ENCLOSURE DIMENSIONS 151T 155H TRANSMITTER SHOWN INSTALLED IS NOT INCLUDED WITH ATW XPW ENCLOSURE 5 25 133mm T GROUND SCREW Y 4501 767A enue sJes 1eyuisueiJ 9JIM OM 115 Seueg q 1g O L AUJ 151 155 WITH ATW DIN DIN RAIL MOUNTING CLIPS 54 36mm 155H 0600 or 151T 0600 TRANSMITTER 2 35 60mm 1 55 40mm 0 86 21 84mm ATW DIN Y DIN CLIPS NOTE ALL DIMENSION ARE IN INCHES MILLIMETERS 1 13 28 7mm 8 32 THREAD 2 PLACES BOTTOM VIEW MODEL ATW DIN DIN RAIL MOUNT 0 86 84 1 45 97mm SIDE VIEW 4501 770A enuen sJes 1eyusueiJ 9JIM OM 116 s u s q 1H O L AUJ 1 2 ATW PM2 2 ID PIPE PIPE MOUNT BRACKET FASTENERS INCLUDED 151 155 TRANSMITTER W ATW TLD ATW XPW ALUMINUM HOUSING A MODEL 151T 155H TRANSMITTER WITH ATW TLD DISPLAY INSTALLED AND MOUNTED IN OPTIONAL ATW XPW EXPLOSION PROOF ENCLOSURE AND SECURED WITH2. Series 151T Two Wire Transmitter User s Manual mV TC RTD Input Transmitter Display Mode Program Procedure continued 9 10 11 At the prompt SELECT SENSOR FAIL SAFE press ENTER if you wish to enable disable the sensor fail safe detection system The present fail safe status is displayed first followed by the opposite selection ON or OFF when you press NEXT When your desired failsafe condition is displayed ON or OFF press ENTER and the transmitter will change to the new setting and the screen will return to the SELECT SENSOR FAIL SAFE prompt NOTE Disable the sensor fail safe feature when attempting to calibrate the unit with an external thermocouple or RTD calibrator or calibration errors may result This feature can be safely re enabled after calibration is complete Press NEXT to proceed to the next menu selection and the SELECT FAIL SAFE REPORT prompt will be displayed This will allow you to configure the output response to a fail safe condition at the input At the SELECT FAIL SAFE REPORT prompt press ENTER to change the fail safe reporting mechanism or NEXT to skip to the next menu selection Fail safe reporting determines the process loop response to a failure condition You can select HIGH for upscale detection loop driven to 23 0mA LOW for downscale detection loop driven to 3 8mA or OFF to disable reporting Selecting OFF does not disable fail
3. defined failsafe level may be programmed via the Configuration Software Start Up Time 7 seconds typical Operation to specification within 30 seconds typical Response Time 250ms typical for an analog output to reach 98 of the final value for a step change in input Noise Rejection Common Mode 120dB typical Input Conversion Rate 7 conversions per second or 150ms typical Input Filter Three input filter modes are provided to help increase noise immunity Line Frequency amp Filter Smart Smoothing and Validation Time Filter parameters require the HockeyPuck Configuration Software to select and cannot be configured in Display Program Mode Refer to the Transmitter Configuration Manual 8500 612 for more information regarding these filters OUTPUT SPECIFICATIONS This unit employs a two wire process current output Output zero and full scale limits may be trimmed see Configuration amp Calibration The module supports output upscale or down scale failsafe indication Analog Output Output Range 4 20mA DC 3 6 to 23mA with over range Zero and span adjustments are non interacting Analog Zero Any value up to 100 of sensor range Output Action Normal or reverse acting response Failsafe Limits Configurable for 3 6mA downscale 23 0mA upscale or other user specified level software required Output Accuracy Output conversion accuracy is better than 0 05 of output span See Accuracy of Input Specifications a
4. Shipping Weight 1lbs 0 45Kg 13 DL ISOLATION gt OPTIONAL LCD INDICATOR amp 0 3mA RTD SENSOR PUSH BUTTON INPUT y EXCITATION CONFIGURATOR 4 DC VOLTAGE A 3 ry 6 INPUT SIGNAL vO O TEST POINT cum lt O INPUT MULTIPLEXER Cre CONVERTER ISOLATION MICROCONTROLLER A D CONVERTER 4 Q B 4 20mA 1 BTN NON VOLATILE R LOAD REFERENCE MEMORY OUTPUT 4 20mA dt MODEM Two Wire COLD JUNCTION INTERFACE COMPENSATION D TEST POINT gt ISOLATION SERIES 151T SIMPLIFIED SCHEMATIC 4501 772A enue su sn 1eyusueiJ 9JIM OM 115 s u s q 1H O L AUJ G PERSONAL COMPUTER WITH WINDOWS 95 98 OR NT PC RUNNING ATTACH ADAPTER TO COM PORT ON THE PC ACROMAG COM PORTS ARE SOFTWARE CONFIGURED HOCKEYPUCK CONFIGURATION SOFTWARE cc PLUG INTO TOP 151T 0600 OF TRANSMITTER TRANSMITTER INTERFACE ADAPTER GREEN LED 0000 4 1 DC a 6 FOOT OF CABLE POWER lt i 4 20mA RL 12 42VDC z EARTH A 0000 V LOAD GROUND 9 PIN CONN
5. 1991 Group 1 for Class equipment 12 Electrostatic Discharge ESD Immunity Complies with IEC1000 4 2 Level 3 8KV AKV air direct discharge Radiated Field Immunity Complies with IEC1000 4 3 at 10V M 1KHz w 80 AM 80 to 1000MHz 200Hz w 100 AM 895 905MHz Electrical Fast Transient Immunity EFT Complies with IEC1000 4 4 Level 2KV DC power 2KV cables Conducted Radio Frequency Immunity CRFI Complies with IEC 1000 4 6 at 3V 1KHz w 80 AM 0 15 80MHz CONFIGURATION This transmitter may be configured via the following two methods Software Interface Package Model 151C SIP Provides full PC reconfiguration of all transmitter parameters Kit includes a PC 151T Serial Interface Adapter HockeyPuck Configuration Software and Transmitter Configuration Manual 8500 612 Refer to Transmitter Configuration Manual for configuration using this software Display Configurator Option Model ATW TLD Field program of key transmitter configuration parameters can be accomplished with the push buttons of this display Some exceptions apply see Transmitter Configuration Manual 8500 612 for more information Refer to the Configuration section of this manual for a configuration procedure using the display option ACCESSORIES The functionality and applications of the basic 151T 0600 transmitter can be expanded with the following accessories DIN Rail Mounting Kit Model ATW DIN A back plate with DIN rail cl
6. AN ATW PM2 PIPE MOUNT BRACKET TO 2 INCH PIPE PIPE CLAMP FOR 2 INCH PIPE 5 16 18 THREAD E 3 4 SQUARE STEEL TUBING GE e Ap 1 4 20 x 1 5 BOLT ATW PM2 PIPE MOUNT C BRACKET SHOWN WITH 5 25 FASTENERS INCLUDED 133mm Hi f BB 1 4 20 x 1 5 BOLT lt 5 16 DIA HOLE 5 PLACES ALL FOUR SIDES 4501 768A enue sJes 1eyuisueiJ 9JIM OM 116 s u s q 1g O L AUJ
7. ATW XPW Housing Dimensions 4501 767 20 ATW DIN DIN Rail Mounting Details 4501 770 21 ATW PM2 Pipe Mounting Details 4501 768 22 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 Windows 95 98 NT are registered trademarks of Microsoft Corp 1 0 INTRODUCTION These instructions cover the hardware functionality of the transmitter model listed in Table 1 See Specifications for specific model details Refer to Accessories to add functionality to this model Supplementary sheets are attached for units with special options or features not covered in this manual Table 1 Model Covered in This Manual Series Approvals Output Factory Input Type Mounting Power Configuration Notes Table 1 1 Agency approvals include CE CSA and FM Each module is shipped with a default factory configuration that can be easily reconfigured to suit your needs To receive modules with a specific configuration to match your application consult the factory or your local representative Information regar
8. appropriate Additionally some of the Display Program Mode functions may use both lines of the display with a numeric value or measurement on the top line and the corresponding prompt message on the bottom line In the following procedure a displayed prompt message is indicated in brackets Several display messages in sequence may be used to complete a single prompt message Series 151T Two Wire Transmitter User s Manual mV TC RTD Input The NEXT button is typically used to scroll through and wrap around available choices while the ENTER button is used to make a General Transmitter Display Mode Program Procedure selection and return to the menu prompt Display Program Mode allows the following key configuration parameters to be adjusted in sequence SELECT INPUT Select a sensor input type SELECT UNITS Select temperature units CHANGE ZERO Change 4mA lower range input value CHANGE FULL SCALE Change 20mA full scale input value SELECT SENSOR FAIL SAFE Enable Disable fail safe indication SELECT FAIL SAFE REPORT Change the output fail safe reporting mechanism upscale downscale or none TRIM 4MA Trim the 4mA output current limit TRIM 20MA Trim the 20mA output current limit TRIM DISPLAY Trim the display offset value Use of the PC 151T Serial Interface Adapter and HockeyPuck Configuration Software allows access to additional transmitter configuration parameters shown below The following items
9. cannot achieve configuration via the optional display then you will need to use the Configuration Software and Interface Adapter to unlock the display push buttons first FIELD CALIBRATION CONFIGURATION Optional ATW TLD Display Required The optional display includes a second line of display information plus two push buttons for configuring the module The display is ordered separately Model ATW TLD and allows adjustment to key transmitter calibration and configuration parameters in the field without having to connect to a host computer running configuration software and without the use of an interface converter The display is inserted directly into the top of the transmitter and may be hot plugged into the transmitter without removing transmitter power A single display may be used for several transmitters to accomplish local measurement and diagnosis as well as in field reconfiguration The display includes two push buttons labeled NEXT and ENTER for configuring the transmitter In the following procedure these buttons are activated with a slow deliberate push to help prevent casual or inadvertent activation of program mode Within Display Mode press the NEXT button to answer No when required or press ENTER to answer Yes When more than 7 characters are required to complete a prompt message the module will alternately sequence through two or more screens to complete the message and will also use common abbreviations where
10. carton for evidence of mishandling during transit If the shipping carton is badly damaged or water stained request that the carrier s agent be present when the carton is opened If the carrier s agent is absent when the carton is opened and the contents of the carton are damaged keep the carton and packing material for the agent s inspection For repairs to a product damaged in shipment refer to the Acromag Service Policy to obtain return instructions It is suggested that salvageable shipping cartons and packing material be saved for future use in the event the product must be shipped This module is physically protected with packing material and electrically protected with an anti static bag during shipment However it is recommended that the module and any accessories be visually inspected for evidence of mishandling prior to applying power NW CAUTION SENSITIVE ELECTRONIC DEVICES DO NOT SHIP OR STORE NEAR STRONG ELECTROSTATIC ELECTROMAGNE MAGNETIC OR RADIOACTIVE HELD This circuit utilizes static sensitive components and should only be handled at a static safe workstation INSTALLATION The transmitter module is encapsulated in a general purpose plastic enclosure Use an auxiliary enclosure to protect the unit in unfavorable environments or vulnerable locations or to maintain conformance to applicable safety standards Stay within the specified operating temperature range of the unit As shipped from the factory the
11. digit is displayed press ENTER to accept the digit and move one digit to the right Repeat the selection process moving left to right until all available display trim value digits have been adjusted or confirmed For example if 0005 0 F is our display trim value the transmitter will sequence as follows 0000 0 F THOUSN 0000 0 F HUNDRD 0000 0 TENS 0005 0 F ONES 0005 0 F TENTHS After the tenths digit has been changed as required press ENTER to return to the TRIM DISPLY prompt The new trim value will be indicated on the line above TRIM and DISPLY Press NEXT to go to the next menu selection and the SELECT LANGU AGE prompt will be displayed The Select Language function allows the transmitter to be configured in any one of four available display languages English German French and Spanish 14 Atthe SELECT LANGU AGE prompt press ENTER and the current language setting will be displayed first followed by optional choices each time NEXT is pressed The display will alternately indicate ENGLISH DEUTSCH FRENCH or ESPANOL Continually pressing NEXT will wrap through the available selections Transmitter Display Mode Program Procedure continued Press ENTER when your desired language is displayed to change to that language and the RETURN TO OPERATE MODE prompt will be displayed 15 Press ENTER at the RETURN TO OPERATE M
12. have been followed Reconfiguring a failed module will sometimes restore operation If diagnostics continue to indicate a problem or if other evidence points to a problem with the unit an effective and convenient fault diagnosis method is to exchange the questionable module with a known good unit Acromag s Application Engineers can provide further technical assistance if required When needed complete repair services are available from Acromag 6 0 SPECIFICATIONS General The Model 151T 0600 is a two wire transmitter which conditions either a single thermocouple RTD millivolt or resistance input and provides an isolated 4 20mA process current output The standard unit includes 8 32 captive mounting screws for surface mount applications and other mounting options are available including DIN rail The unit is configured and calibrated with our user friendly Window 95 98 NT HockeyPuck Configuration Software and PC 151T Interface Adapter Alternately when equipped with the optional display the module may be reconfigured via push buttons on the display Non volatile reprogrammable memory in the module stores calibration and configuration information MODEL NUMBER DEFINITION Transmitters are color coded with a white label The prefix 15 denotes the Series 1500 while the T suffix specifies that this device is primarily a process transmitter 151T Transmits and isolates a single DC millivoltage Thermocouple T C
13. module or before attempting service All wired connections must be made with power removed Exercise caution when tightening down input connections as threads may be damaged if too much torque is applied CAUTION Risk of Electric Shock More than one disconnect Switch may be required to de energize the equipment before servicing 1 Output Power Connect a DC power supply and load per Electrical Connections Drawing 4501 764 This transmitter operates from DC power only Power supply voltage is not critical and should be from 12 to 42V DC The power supply voltage must be adequate to furnish full scale current to the load about 23mA plus transmission line drop plus 12VDC minimum terminal voltage to the transmitter Variation in power supply voltage or load resistance within rated limits has negligible effect on module accuracy 2 Input Connect the input per Connection Drawing 4501 764 Observe proper polarity when making connections 3 PC 151T Serial Interface Adapter Connections Optional The PC 151T Serial Interface Adapter included in Acromag kit 151C SIP plugs directly into the top of the module with the optional ATW TLD display removed A DB9S connector at one end of the interface converter plugs directly into the common DB9P serial port connector of a host computer Refer to Drawing 4501 771 for connection details 4 Grounding This two wire transmitter is potted in a general purpose plastic enclosure and does not r
14. or removed from the top of installed transmitters This offers an economical approach for allowing personnel to take local readings diagnose faults and make adjustments to transmitter configuration parameters on the fly Refer to Drawing 4501 765 for display dimensions and details Explosion Proof Housing w Window amp Mounting Kit Model ATW XPW This aluminum enclosure is explosion proof and includes a clear window for viewing 151T or 155H transmitters equipped with the optional display It is a NEMA 4X IP66 68 housing and is CSA and FM approved for Class I Div 2 Groups B and D Class Il Div 2 Groups E F and G and Class Div 2 A mounting plate and screws are pre installed for easy transmitter mounting within the enclosure An optional pipe mount bracket is also available for attaching this enclosure to common 2 inch pipe for improved mechanical stability see ATW PM2 below Refer to Drawing 4501 767 for dimensions and details of this enclosure Series 151T Two Wire Transmitter User s Manual mV TC RTD Input Pipe Mounting Bracket For Housing Model 2 This stainless steel bracket allows ATW XPW enclosures to be mounted to 2 inch diameter horizontal or vertical pipe for improved mechanical stability Refer to Drawing 4501 768 to view details of this accessory Software Interface Package Model 151C SIP PC 151T Interface Adapter Configuration Software amp Manual The 151T Transmitter
15. safe indication only the output response to 12 the fail safe condition Press ENTER at the SELECT FAIL SAFE REPORT prompt and the display will indicate the current setting first followed by the optional settings upon pressing NEXT Choose HIGH OFF or LOW by pressing ENTER at your desired setting and you will then be returned to the SELECT FAIL SAFE REPORT prompt Press NEXT to proceed to the next menu selection and the TRIM 4 MA prompt will be displayed Trim 4MA allows you to make minor adjustments to the output zero or 4mA signal If you wish to trim the 4 00mA output limit press ENTER at the TRIM 4 MA prompt WARNING The 4 00mA limit is already factory calibrated to a precision standard traceable to NIST Trimming the output limit voids traceability of calibration to NIST Do not arbitrarily trim the output unless a precise method of measuring the output current is available Further the 4 0mA limit should not be trimmed more than 0 05mA or transmitter operation may be impaired 13 Transmitter Display Mode Program Procedure continued After pushing ENTER the transmitter will output a current equal to its internally set 4mA limit This value should be precisely monitored with a very accurate meter If the meter does nol precisely read 4 0mA then adjustments may be made You may adjust this current up to 0 05mA At this point the display will alternately display the f
16. unit is already factory calibrated for all valid input ranges and has the default configuration shown in Table 2 below WARNING Applicable IEC Safety Standards may require that this device be mounted within an approved metal enclosure or sub system particularly for applications with voltages greater than or equal to 75VDC or 50VAC Table 2 151T Default Factory Configuration Shaded entries cannot be adjusted via the Display program Mode and require the use of the HockeyPuck Configuration Software to make adjustments Refer to the Transmitter Configuration Manual for complete definitions of these terms Your application may differ from the default configuration and will require that the transmitter be reconfigured to suit your needs This is accomplished with Acromag s user friendly Windows 95 98 or NT Configuration Program and PC 151T Serial Interface Adapter Model 151C SIP or via the push buttons of the optional display Model ATW TLD Configuration is normally done prior to field installation Mounting Refer to Enclosure Dimensions Drawing 4501 766 for mounting and clearance dimensions Make allowances in determining clearance for the optional display ATW TLD or DIN rail mount ATW DIN Surface Mounting The standard transmitter has two integrated mounting holes with 8 32 captive screws for surface mount applications DIN Rail Mounting The optional ATW DIN backplate and mounting clips allow the module to be
17. used for in field reconfiguration messages and menu NOTES selections in Display Program Mode Two push buttons labeled NEXT and ENTER are included and used to configure the transmitter These buttons may be locked out via the HockeyPuck Configuration Software Refer to Drawing 4501 765 for display details Key transmitter configuration parameters can be programmed via this display except for entering a custom linearization curve and selecting Ni and Cu RTD types Other exceptions apply see Transmitter Configuration Manual for more information Refer to the Configuration section of this manual for a configuration procedure using the display option Fail Safe Indication Display alternates the message FAIL SAFE in response to the following input conditions open thermocouple open RTD short circuited RTD or RTD lead break any lead A fail safe indication may also occur if the lead wire resistance is too great see Specifications Display Dimensions Refer to Drawing 4501 765 Shipping Weight 0 5lbs 0 23Kg Explosion Proof Housing w Window Model ATW XPW This cast aluminum explosion proof enclosure includes a clear window for viewing 151T or 155H transmitters equipped with the optional display Enclosure is CSA and FM approved for Class Div 2 Groups B C and D Class ll Div 2 Groups E F and G and Class 111 Div 2 Housing has back plate already installed for easily mounting 151T 155H transmitters within the enclosure A
18. 1000 Pt RTD SAMA Curve SAMA RC21 4 98 13Q at 0 C alpha 0 003923 4W SPEC Reserved for a special 4 wire RTD input custom order required MV Millivoltage input HHTONLY Hand Held Setup Factory use only T C B Type B thermocouple T C C Type C thermocouple T C E Type E thermocouple Note that pressing NEXT will continue to wrap through the menu selections until ENTER is pressed at a desired input type selection If no sensor change is desired simply press ENTER at the current sensor type to confirm the selection After pressing ENTER the display returns to the SELECT INPUT prompt 5 Atthe SELECT INPUT prompt press NEXT to move onto the next menu selection If the selected input type is a thermocouple or RTD from Step 4 then SELECT UNITS will be displayed Otherwise CHANGE ZERO will be displayed if the transmitter is not an RTD or thermocouple type and you should skip step 6 and go to step 7 6 RTD or Thermocouple Inputs Only Press ENTER at the SELECT UNITS prompt and the display will indicate the current unit selection followed by the optional unit selections similar to that shown below each time NEXT is pressed to Scroll through the selections selections will vary with input type selection DEG F Set units to degrees Fahrenheit DEG R Set units to degrees Rankine DEG K Set units to degrees Kelvin DEG C Set units to degrees
19. Acromag 3 Series 151T Smart Two Wire Temperature Transmitter mV TC RTD Input USER S MANUAL ACROMAG INCORPORATED 30765 South Wixom Road P O BOX 437 Wixom MI 48393 7037 U S A Tel 248 624 1541 Fax 248 624 9234 Copyright 1999 Acromag Inc Printed in the USA Data and specifications are subject to change without notice 8500 61 1 A99H000 Series 151T Two Wire Transmitter User s Manual mV TC RTD Input The information contained in this manual is subject to 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 Table of Contents Page 1 0 INTRODUCTION HH 2 DESCRIPTION ict ect n t e els Key 151T Features esses 3 ACCESSORY ITEMS 3 DIN Rail Mounting Kit a reece 3 LCD Display amp Field 3 Explosion Proof Housing 3 Pipe Mounting Kit 4 S
20. Celsius Press ENTER when your desired units are displayed The transmitter will be set to those units and you will be returned to the SELECT UNITS prompt At the SELECT UNITS prompt press NEXT to move onto the next menu selection and the CHANGE ZERO prompt will be displayed Change Zero allows the zero or 4mA output point of the input signal to be changed This is referred to as the Zero or Lower Range Value LRV 7 Atthe CHANGE ZERO prompt the current zero value of the input signal is displayed on the line above CHANGE and ZERO Press ENTER at the CHANGE ZERO prompt and the transmitter will indicate the sign of the zero value with PLUS or MINUS Transmitter Display Mode Program Procedure continued Pressing NEXT cycles between the plus and minus selections until ENTER is pressed to make a selection Again the numeric value on the top line above PLUS and MINUS represents the current zero value Press ENTER to select PLUS or MINUS as desired and the display will then allow each digit of the zero value to be changed in sequence beginning with the leftmost digit The digit that may be modified will blink indicated in underlined italics below Pressing NEXT will increment the blinking digit from the current setting through 1234567890 When the correct digit is displayed press ENTER to accept the digit and move one digit to the right Repeat the selection process moving left to rig
21. ECTOR DB9S MATES TO THE DB9P YELLOW LED p Di LED FUNCTIONS HOST COMPUTER STATIC NO TRANSFER BOTH LED s ON JORSVIEW DISPLAY ATW TLD MUST RECEIVE SHEEN LED BLINKS YELLOW LED OFF BE REMOVED TO INSTALL TRANSMIT YELLOW LED BLINKS GREEN LED OFF INTERFACE ADAPTER SERIES 151T COMPUTER CONNECTIONS 4501 771A enuen sJes 1eyusueiJ 9JIM OM LLSI s u s q 1g O L AUJ 9 4 WIRE RTD COM LEAD B COM LEAD B COM LEAD A COM LEAD A THERMOCOUPLE RTD or MILLIVOLT INPUT ANALOG OUTPUT NO JUMPERS PRESENT AT TERMINAL CONNECTIONS PER INPUT TYPE mV TC 2 RTD 3 WIRE RTD 4 WIRE JUMP 1 amp 2 RTD JUMP 1 amp 2 z JUMP 3 amp 4 KELVIN JUMP 3 amp 4 EARTH GROUND JUMPER 3 TO 4 3 WIRE RTD VOLTAGES U SOURCE EARTH GROUND Y 4 20 JUMPER 3 TO4 T Ow V LOAD SRL S T 2 WIRE RESISTANCE 12 TO 42VDC EARTH L V SUPPLY V TRANSMITTER V LOAD GROUND JUMPER 1 TO 2 1 JUMPER 1 TO 2 NOTE 1 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 ERROR WARNING FOR COMPLIANCE TO APPLICABLE SAFE
22. ENSORS ARE INHERENTLY CONNECTED TO GROUND USE CAUTION AND F G U R E B AVOID MAKING ADDITIONAL GROUND CONNECTIONS WHICH COULD GENERATE GROUND LOOPS AND MEASUREMENT ERROR 4501 764 enue su sn 1eyusueiJ 9JIM OM 116 s u s GLY O1L AW 8 ATW TLD DISPLAY OPTIONAL ATW TLD DISPLAY DIMENSIONS AND FEATURES DISPLAY CONTAINS TWO LINES OF 2 30 D SEL 0 03 INFORMATION PLUS 58 42mm WINDOW 21 59mm AN ELEVEN SEGMENT BAR GRAPH NEXT DISPLAY MAY BE HOT PLUGGED INTO Q TOP OF MODULE RECESSED A SINGLE DISPLAY PUSH BUTTONS MAY BE USED TO FOR MODULE PROGRAM MULTIPLE 2 50 RECONFIGURATION TRANSMITTERS 63 5mm 0 45 MODEL ATW TLD 11 43mm PLUG IN DISPLAY TOP OF DISPLAY AND IN FIELD CONFIGURATOR 1 55 151T 060D TRANSMITTER NOTE ALL DIMENSION ARE IN INCHES MILLIMETERS 4501 765A enue su sn 1eyusueiJ 9JIM OM 116 s u s GLY O1L AW 61 151 155 WITHOUT DISPLAY 151T 155H WITH ATW TLD DISPLAY 1 70 43 18mm 2 30 0 85 58 42mm 21 59mm 0 45 11 43mm 151T1 155H TRANSMITTER ENCLOSURE DIMENSIONS NOTE ALL DIMENSION ARE IN INCHES MILLIMETERS 4501 766A enue sJes 1eyuisueiJ 9JIM OM 115 s u s q 1g O L AUJ 02 3 4 NPT HOUSING 1 2 NPT NIPPLE 5 16 DIA 2 PLACES 2 PLACES
23. ODE prompt and the transmitter will return to the normal operating mode Configuration is now complete If you press NEXT instead then you will re enter the Display Program Mode and the configuration process will be repeated In operating mode the second line of the display will indicate the tag number normal operation or the fault indications FAIL SAFE broken sensor lead or open sensor or DFAULT a display fault has occurred due to ambient temperatures exceeding the temperature rating of the display A bar graph also indicates signal measurement in percent of calibrated span Note that in Display Program Mode if no buttons are pushed for 2 5 minutes then the transmitter will automatically return to the operate mode You can also return to operating mode at any point in Display Program Mode by removing power to the transmitter for about 10 seconds then reapplying power 4 0 THEORY OF OPERATION Refer to Simplified Schematic 4501 772 to gain a better understanding of the circuit Note that these transmitters will accept a thermocouple an RTD sensor or a voltage input and condition it to a voltage signal for A D conversion A multiplexer is used to drive the A D converter stage and switch between the various input signals The A D converter applies appropriate gain to the signal performs analog to digital conversion and filters the signal The digitized A D signal is then transmitted serially to an optically isolated micr
24. TY AND PERFORMANCE STANDARDS THE USE OF SHIELDED CABLE IS RECOMMENDED AS SHOWN ADDITIONALLY THE APPLICATION OF EARTH GROUND MUST BE IN PLACE AS SHOWN IN THIS DRAWING FAILURE TO ADHERE TO SOUND WIRING AND GROUNDING PRACTICES MAY COMPROMISE SAFETY AND PERFORMANCE SAFETY GUIDELINES MAY REQUIRE THAT THIS DEVICE BE HOUSED IN AN APPROVED METAL ENCLOSURE OR SUB SYSTEM PARTICULARLY FOR APPLICATIONS WITH VOLTAGES GREATER THAN OR EQUAL TO 75VDC 50VAC EARTH GROUND ELECTRICAL CONNECTIONS MODEL 151T 0600 or 155H 0600 TRANSMITTER 12VDC MIN 0 023A x R LOAD 17 75V MIN w R LOAD 250 ohms FIGURE A 4501 764 enuen sJes JOWIWSUeI 9JIM OM LLG s u s GLY O1L AW JL ALTERNATE CONNECTION METHODS T C CONNECTION WITH DUAL 2 WIRE RTD DIFFERENTIAL CONNECTION EXTERNAL CJ SENSING JUMPER 3 TO 4 JUMPER 3 TO 4 Ni100 RTD AT TERMINALS NEGATIVE LEADS TIED TOGETHER EXTERNALLY NEAR TRANSMITTER T C B DO GROUND x NOTE 1 L EARTH NOTET g GROUND n Lb OUTPUT AND DISPLAY l REPRESENT THE DIFFERENCE T C A B CONNECTION TYPES Dual 2 Wire Independent Dual 2 Wire Secure ELECTRICAL CONNECTIONS Dual 2 Wire Average Dual 2 Wire RTD Differential MODEL 151T 0600 or 155H 0600 TRANSMITTER NOTE 1 THIS GROUND CONNECTION IS RECOMMENDED FOR BEST RESULTS IF S
25. cannot be adjusted in Display Program Mode 1 Connect the transmitter to an appropriate power supply and load and apply power Refer to Electrical Connections Drawing 4501 764 No input signal source is required If you are going to be trimming zero and full scale output limit values you will also need to connect a precise current milliampmeter in series with the load or a voltmeter across a precision output load resistance in order to precisely read the output signal of the transmitter A transmitter with the standard default factory configuration and no sensor connected to the input will alternately display the message FAIL SAFE on the second line of the display since no sensor is connected to the input and fail safe indication is enabled by default Further the bar graph of the display will indicate an upscale output measurement greater than 100 about 23mA as this is the default failsafe reporting mechanism configured 2 Press the NEXT button and the display will ask if you wish to e Input Setup Some sensor types can only be selected via the return to Operating Mode by alternately displaying the following software Cold Junction Compensation and optional fixed cold words RETURN TO OPERATE MODE junction temperature options cannot be configured Configuration of a sensor offset curve optional 22 point 3 Answer NO by pressing the NEXT button a second time and linearization Linearization disable you wil
26. ccuracy NBS ISA TC ANSI Type TC Material Color Pt 10 Rh gray Pt 6 Rh red Tungsten 20 Rhen Chromel purple Constantan red lron white Constantan red K Chromel yellow Alumel black 260 1820 C 109 3272 F 1009C 0 2320 C 32 4208 F 100 Tungsten 5 Rhenium 270 1000 C 454 1832 F 20 C 210 1200 C 346 2192 F 20 C 270 1372 C 454 2502 F 20 C 200 900 C 328 1652 F 20 C 270 1300 C 0 3 C 518 2372 F 0 5 F 20 C 50 1768 C 122 3214 F 25 C 50 1768 C 58 3214 F 125 C 270 400 454 752 F 20 C 200 600 328 1112 me 0 3 G 0 5 0 3 40 5 F 0 3 C 0 5 F 0 3 C 0 5 F Nicrosil NISIL orange red black red black red blue red black red ME Pt 13 Rh Constantan 0 8 C 1 5 Pt 10 Rh Constantan 0 8 G 1 5 T Copper 0 3 C Constantan 0 5 Copper 0 8 C 41 5 F Min Span Typ n Aa a 3mV General Input Specifications Reference Test Conditions Output is 4 20mA into 5000 Ambient Temperature 77 F 25 C Power Supply 24V DC Accuracy Digital input accuracy is 0 05 of the millivolt or ohm equivalent input reading or the value indicated in Table 4 whichever is greater D A output conversion accuracy is 0 05 of output span Ov
27. couple or RTD input signals Linearization lead break detection and TC reference junction compensation are included e True 4 Wire Kelvin Measurement Improves performance of 4 wire RTD measurements e Wide Ambient Operation The unit is designed for reliable operation over a wide ambient temperature range Automatic Built In Self Diagnostics This transmitter automatically checks for zero span cold junction temperature open T C open or shorted RTD element and open RTD lead or other transmitter malfunction every 3 seconds The HockeyPuck Configuration Software also includes software diagnostic routines to aid in trouble shooting Hardened For Harsh Environments The unit will operate reliably in harsh industrial environments and includes protection from RFI CRFI EMI ESD and EFT plus low radiated emissions per CE requirements Key 151T Features continued Convenient Mounting The integrated surface mount or optional DIN rail mount make module installation fast and easy The compact size of this transmitter and optional display permit installation in very tight spaces Built In Linearizer Function The input signal can be optionally linearized with up to 22 break points defined Flexible Filtering Three user programmable input filter modes can be applied to help increase noise immunity Input Line Frequency and Filter Smart Smoothing and Validation Time Output damping may also be configured These pa
28. ding the HockeyPuck Configuration Software and PC 151T Serial Interface Adapter can be found in the Transmitter Configuration Manual 8500 612 Note that Acromag also offers this transmitter with HART amp support Refer to Acromag Model 155H Transmitters for more information DESCRIPTION Series 151T Two Wire Transmitters are members of the popular Acromag transmitter isolator and alarm family These compact puck style transmitters will condition a DC voltage thermocouple or RTD input and provide an isolated 4 20mA process current output signal for two wire process loops The 151T models are programmable via our user friendly Windows 95 98 or NT HockeyPuck Configuration Software or via the push buttons of the optional ATW TLD display Each module provides a single input for either DC millivolts thermocouple or RTD signals RTD sensor excitation linearization lead wire compensation and lead break detection are included Thermocouple reference junction compensation linearization and open circuit or TC break detection is also provided This transmitter also includes a built in 22 point linearizer function Following basic two wire design the output and DC power share the same pair of twisted copper wires The transmitter connected in series with a load and DC supply provides an output loop current proportional to the input signal Communication with this model is done via an interface converter that plugs directly into the top
29. ed T Type i without disturbing the 4 20mA loop current As such no method for T C T Type T thermocouple recalibration of the input signal is provided This helps simplify T C U Type U thermocouple calibration as no input source or calibrator is required to complete configuration Equipment Required An accurate current or voltage meter is required to monitor the output signal if you intend to trim the output limits steps 11 and 12 below This meter must be accurate beyond the module specifications for best results No input sensor or source is required to complete configuration T CSPEC Reserved for a special thermocouple type custom order required 2W OHMS Two wire resistance ohms 2W DINP 1000 Pt RTD DIN Curve alpha 0 00385 2W SAMP 1000 Pt RTD SAMA Curve SAMA RC21 4 98 130 at 0 C alpha 0 003923 2W SPEC Reserved for a special 2 wire RTD input custom order required SW OHMS Three wire resistance ohms BW DINP 1000 Pt RTD DIN Curve alpha 0 00385 3W SAMP 1000 Pt RTD SAMA Curve SAMA RC21 4 98 130 at 0 C alpha 0 003923 3W SPEC Reserved for a special 3 wire RTD input custom order required Series 151T Two Wire Transmitter User s Manual mV TC RTD Input Transmitter Display Mode Program Procedure continued 4W OHMS Four wire resistance connection ohms 4W DINP 100Q Pt RTD DIN Curve alpha 0 00385 4W SAMP
30. equire an earth ground connection If this transmitter is mounted in a metal housing a ground wire connection is typically required The optional aluminum housing ATW XPW also includes provisions for grounding Connect the ground terminal of this enclosure Green Screw to earth ground using suitable wire per applicable codes WARNING For compliance to applicable safety and performance standards the use of shielded cable is recommended as shown in Drawing 4501 764 Further the application of earth ground must be in place as shown in Drawing 4501 764 Failure to adhere to sound wiring and grounding practices may compromise safety amp performance 3 0 MODULE CONFIGURATION This transmitter module needs to be configured for your application Complete configuration is normally accomplished using Acromag s Windows 95 98 NT HockeyPuck Configuration Software and PC 151T Serial Interface Adapter Kit Model 151C SIP Configuration of key parameters may also be accomplished via the push buttons on the optional ATW TLD display Complete transmitter calibration and configuration details using the Configuration Software is included in Transmitter Configuration Manual Field configuration of the transmitter via the optional display is covered in the following paragraphs Note that the display push buttons can be disabled via the HockeyPuck Configuration Software to help prevent tampering or inadvertent reconfiguration in the field If you
31. erall I O accuracy is the effective sum of the input and output accuracy The optional display does not include the small DAC error present in the output For thermocouple units include up to 0 5 C 0 9 F of cold junction compensation error Accuracy includes the effects of repeatability hysteresis non linearity ambient temperature and humidity effects reference junction error TC inputs A D conversion error D A output error and supply voltage effects under non condensing conditions and vibration up to 2g s at up to 500Hz Accuracy does not include sensor error zie Ambient Temperature Effect Self correcting over the full operating temperature range for temperature changes up to 20 C Hour Error is less than half the reference accuracy plus 0 1 C per 28 C 50 F change Ranging Zero and span are non interactive Repeatability To one half of the transmitter accuracy Long Term Stability Stability deviation per year is less than 0 025 of output span plus 0 05 of the input reading Interchangeability Units are fully interchangeable without field calibration Linearization TC amp RTD linearization to 0 05 C Custom linearization for up to 22 break points is possible for units programmed via the HockeyPuck Configuration Software Sensor Break Detection Sensor break or open circuit failure can be configured for failsafe detection with upscale 23mA downscale 3 6mA or no output response Alternately a user
32. ht until all available zero value digits have been adjusted or confirmed For example if 0040 0 F is our zero value the transmitter display will sequence as follows 0040 0 F THOUSN 0040 0 HUNDRD 0040 0 F TENS 0040 0 F ONES 0040 0 F TENTHS After the tenths digit has been changed as required pressing ENTER returns to the alternating display of the CHANGE ZERO prompt The new zero value is indicated on the line above CHANGE and ZERO Press NEXT to proceed to the next menu selection and the CHANGE FULL SCALE prompt will be displayed Change Full Scale allows the full scale or 20mA output point of the input signal to be changed This is referred to as the Full Scale or Upper Range Value URV 8 Atthe CHANGE FULL SCALE prompt the numerical sign and value selection is done the same as described in step 7 for zero and will not be repeated here Change the full scale value as required using step 7 as your guide Once the full scale changes have been completed and the ENTER button is pressed you will be returned to the CHANGE FULL SCALE prompt Press NEXT to proceed to the next menu selection and the SELECT SENSOR FAIL SAFE prompt is displayed This allows you to enable or disable fail safe indication as was demonstrated in Step 1 That is the display alternated the words FAIL SAFE when no sensor was connected to the input in operating mode
33. ips installed for convenient T Type DIN rail mounting of 151T transmitters Backplate is threaded 8 32 for attachment to the module via the two captive mounting screws of the transmitter enclosure Dimensions Refer to Drawing 4501 766 Shipping Weight 0 5lbs 0 23Kg Pipe Mounting Bracket For Housing Model ATW PM2 This steel bracket allows ATW XPW enclosures to be mounted to 2 inch diameter horizontal or vertical pipe for improved mechanical stability Bracket Dimensions See Drawing 4501 768 Shipping Weight 1lbs 0 45Kg LCD Display amp Field Programmer Model ATW TLD A two line 4 1 2 digit plug in type Liquid Crystal Display First line of display has six 8mm 0 31 inch digits plus polarity negative sign only that indicates the input measurement in C F R or K Note that the optional display measurement does not include the small DAC error present in the output signal The second line of the display has seven 6mm 0 25 inch alphanumeric characters used to display a configurable tag number fault messages FAIL SAFE DFAULT configuration prompts and configuration selections An eleven segment bar graph is also included which indicates the input measurement in percent of calibrated range The second line of display information is used for tag number fail safe fault indication and display fault indication in operating mode Series 151T Two Wire Transmitter User s Manual mV TC RTD Input It is also
34. is fully configurable via the PC 151T Serial Interface Adapter and user friendly Windows 95 98 NT HockeyPuck Configuration Software included in this kit The interface adapter serves as an isolated interface converter between the EIA232 serial port of the host computer and the FSK interface of the 151T module It is used in conjunction with the configuration Software to program and configure 151T transmitters The interface adapter requires no user adjustment no external power and operates transparent to the user It receives its power from the RS232 interface The interface converter has a DB9S connector on one end that mates to the common DB9P serial port connector of a host computer The other end has an adapter at the end of 6 feet of cable that plugs directly into the top of 151T transmitters with optional display removed The configuration software is supplied on CDROM and requires 40MB of free hard drive space to install All transmitter functions are programmable and downloadable to the modules via this software and interface adapter The software also allows a configuration to be printed for documentation purposes Transmitter Configuration Manual 8500 612 is included with this kit and has additional information regarding software configuration Refer to Drawing 4501 771 for computer interface adapter and module connection details 2 0 PREPARATION FOR USE UNPACKING AND INSPECTION Upon receipt of this product inspect the shipping
35. l enter the Display Program Mode and the SELECT Failsafe Setup Failsafe Other report with programmed INPUT prompt will be displayed Failsafe mA Value selection e Transmitter Filtering Setup Line frequency smart smoothing 4 Atthe SELECT INPUT prompt press ENTER to answer or validation time parameters Output Setup Damping parameter Local Display Setup Local Keys enable disable label and display variable setting Tag Setup Tag descriptor message sensor serial number and date information Refer to Transmitter Configuration Manual for more information regarding configuration using the HockeyPuck Configuration Software and PC 151T Serial Interface Adapter YES or NEXT to answer NO and skip to the next step After pressing ENTER the display will sequence through all valid input types starting with the current input type already set and in the order shown below Press NEXT to skip to the next input type and press ENTER when your desired input type is displayed Input type menu selection prompts are displayed as follows T C J Type J thermocouple NOTE The Acromag 151T Transmitter includes automatic self T C K K thermocouple calibration of the input These transmitters will automatically check T C L Type L thermocouple the NIST traceable zero and full scale calibration reference e Ab ae a standards every three seconds and make corrections as requir
36. mounted to T type DIN rails by simply snapping the unit in place Always use suitable fastening hardware to secure the DIN rail to the mounting surface Refer to Drawing 4501 766 for DIN mounting details Series 151T Two Wire Transmitter User s Manual mV TC RTD Input Optional Enclosure Mounting This module may be mounted in an optional aluminum housing ATW XPW This housing has a backplate installed that allows the transmitter and optional display to be mounted inside It includes a clear window for easy view of the display An optional bracket ATW PM2 allows the housing to be mounted to 2 inch horizontal or vertical pipe for increased mechanical stability See Accessories for more details Electrical Connections Terminals of this unit may accommodate wire from 10 24 AWG stranded or solid copper Strip back wire insulation at least 1 4 inch before installing into terminal screws Input wiring should ideally be shielded twisted pair Since common mode voltages can exist on signal wiring adequate wire insulation should be used and proper wiring practices followed It is further recommended that transmitter output and power wiring be separated from the input signal wiring for safety as well as for low noise pickup Note that the optional plug in display can be easily removed to provide access to terminal wires with or without power applied Be sure to remove power and or disable the load before disconnecting wires to uninstall the
37. n from input to output They also have low radiated emissions per CE requirements The safe compact rugged reconfigurable and reliable design of this transmitter make it an ideal choice for control room and field applications Acromag also offers a broad range of other transmitter isolator and alarm models to reliably serve almost any application please consult the factory Key 151T Features e Agency Approvals CE CSA and FM e Easy Windows Configuration Fully reconfigurable via our user friendly Windows 95 98 or NT HockeyPuck Configuration Software and PC 151T Serial Interface Adapter Multi Function LCD Display The optional 4 1 2 digit LCD display provides local indication of the transmitter output in C F R or K units graphical indication in percent of calibrated span bar graph plus tag diagnostic and configuration information Supports In Field Reprogrammability The push buttons of the optional display provide support for reconfiguring the transmitter directly without use of an interface adapter and host computer Fully Isolated The input and output circuits are isolated from each other for safety and increased noise immunity e Automatic Self Calibration Increases accuracy over wide ambient variations and simplifies input module calibration Transmitter zero and full scale are non interlaced Flexible DC Millivolt Thermocouple or RTD Inputs Accepts either DC millivolt thermo
38. n optional pipe mounting bracket is also available for attaching this enclosure to common 2 inch pipe see ATW PM2 below Housing Dimensions See Drawing 4501 767 Housing Material Cast Aluminum NEMA 4X IP66 68 Conduit Entrances Two 34 NPT threads with two 72 14 NPT reducers installed Shipping Weight 2 7lbs 1 2Kg Software Interface Package Model 151C SIP This software interface package includes the PC 151T Serial Interface Adapter Windows 95 98 NT HockeyPuck Configuration Software and Transmitter Configuration Manual 8500 612 This package is used to fully configure Series 151T Transmitters The interface adapter is an isolated interface converter between the PC and the 151T The adapter is powered from the RS232 interface and has a DB9S connector that mates to the common DB9P serial port connector of a host computer The interface converter has an adapter at the end of 6 feet of cable that plugs directly into the top of the 151T transmitter with the optional display removed The configuration software is supplied on CDROM and requires 40MB of free hard drive space to install The software also allows a module configuration to be printed in summary form for convenient documentation Transmitter Configuration Manual 8500 612 includes additional information regarding software configuration Refer to Drawing 4501 771 for computer interface adapter and module connection details Electrical Connections See Drawing 4501 771
39. nd Tables 4A and 4B to compute overall accuracy Output Compliance 12V Typical Output Load Resistance Range 0 to 5000 typical Under Range Current 3 8mA This is different from the down scale failsafe limit of 3 6mA by design Over Range Current 20 75mA This is different from the upscale failsafe limit of 23mA by design Output Load Limitations The maximum loop resistance including the optional display is computed as R Load Q Maximum Vsupply 12V 0 023 With 24V DC Supply Maximum R Load 521 70 Series 151T Two Wire Transmitter User s Manual mV TC RTD Input Output Damping Damping can be set anywhere between 0 and 32 seconds and is used to set the amount of exponential damping filtering to be applied to the input signal Damping will increase the response time of the transmitter to help smooth the output when the input signal contains rapid variations Damping is programmable via the HockeyPuck Configuration Software ENCLOSURE PHYSICAL SPECIFICATIONS See Enclosure Dimensions Drawing 4501 766 Units are encapsulated in a general purpose plastic enclosure that supports a variety of mounting options Dimensions See Drawing 4501 766 Housing Sealed Lexan plastic with waterproof potting Connectors Wire Range AWG 10 24 stranded or solid copper Printed Circuit Boards Military grade FR 4 epoxy glass Mounting See Accessories for mounting options Variations of surface and DIN rail mounting are sup
40. ocontroller The microcontroller completes the transfer function according to the configuration and sends a corresponding output signal to a Digital to Analog Converter DAC The DAC then updates its current output in response The embedded configuration and calibration parameters are stored in non volatile memory within the module Information regarding the HockeyPuck Configuration Software and PC 151T Serial Interface Adapter can be found in Transmitter Configuration Manual Series 151T Two Wire Transmitter User s Manual mV TC RTD Input 5 0 SERVICE AND REPAIR CAUTION Risk of Electric Shock More than one disconnect switch may be required to de energize the equipment before servicing SERVICE AND REPAIR ASSISTANCE There are no user serviceable components inside this transmitter and any attempts to open the enclosure will void the warranty This module requires no maintenance except for periodic cleaning and transmitter configuration parameter zero full scale etc verification A non functioning module may be returned to Acromag for inspection or replacement Acromag has automated test and diagnostic equipment that thoroughly checks and calibrates the performance of a module Please refer to Acromag s Service Policy Bulletin or contact Acromag for complete details on how to obtain replacement or repair PRELIMINARY SERVICE PROCEDURE Before beginning repair be sure that all installation and configuration procedures
41. of the module Field programmability of the unit in the absence of a host computer and interface converter may also be accomplished via the optional LCD display ATW TLD The lightweight construction and compact size of this transmitter permits a variety of mounting options The standard model includes integrated mounting holes with captive screws for simple surface mount applications A DIN rail mounting clip may be ordered separately An optional explosion proof aluminum enclosure is also available and includes a display window for viewing a module equipped with the display option A pipe mounting kit may also be ordered for mounting the optional enclosure to common 2 inch pipe for improved stability Series 151T Two Wire Transmitter User s Manual mV TC RTD Input An optional 4 1 2 digit LCD display provides visual indication of the transmitter s output The display also has two push buttons to facilitate in field configuration of the transmitter The display may indicate in C F R or K and includes an 11 segment bar graph that indicates input measurement in percent of calibrated span A second line of information on the display indicates tag information diagnostic messages configuration prompts and configuration menu selections Series 151T modules are designed to withstand harsh industrial environments They feature RFI CRFI EMI ESD and EFT plus low temperature drift wide ambient temperature operation and isolatio
42. oftware Interface 4 2 0 PREPARATION FOR USE 4 UNPACKING AND INSPECTION 4 INSTALLATION 2 e uento odds 4 Mounting x iore iw ete ee eae aian 4 Electrical Connections 5 3 0 MODULE CONFIGURATION 5 FIELD CALIBRATION CONFIGURATION 5 General Display Mode Program Procedure 6 4 0 THEORY OF OPERATION 9 5 0 SERVICE AND REPAIR 9 SERVICE AND REPAIR ASSISTANCE 9 PRELIMINARY SERVICE PROCEDURE 10 6 0 SPECIFICATIONS 10 MODEL NUMBER DEFINITION 10 INPUT SPECIFICATIONS 10 OUTPUT ve 11 ENCLOSURE PHYSICAL SPECIFICATIONS 12 APPROVALS x SERE De 12 ENVIRONMENTAL SPECIFICATIONS ee 12 CONFIGURATION 5 alias lay ene 12 ACCESSORIES e rnt eas 12 List of Drawings Page 151T Simplified Schematic 4501 772 14 151T Computer to Module Connections 4501 771 15 Electrical Connections 4501 764 Figure A 16 Electrical Connections 4501 764 Figure B 17 ATW TLD Display Dimensions 4501 765 18 Enclosure Dimensions 4501 766 19
43. ollowing messages each time the NEXT key is pressed RAISE MA OUT LOWER MA OUT Press ENTER at your desired action and the display will indicate NEXT or NEXT depending on whether RAISE or LOWER was selected Now each time NEXT is pressed the display will blink and the 4 0mA output level will decrease or increase by approximately 3 5uA for each press of the NEXT button Once the output reads precisely 4 0mA press ENTER to accept the new zero limit and you will be returned to the TRIM 4 MA prompt Press NEXT to go to the next menu selection and the TRIM 20 MA prompt will be displayed Trim 20MA allows you to make minor adjustments to the output full scale or 20mA signal At the TRIM 20 MA prompt adjustment of the full scale output value is done exactly as described for 4MA in step 11 and will not be repeated here Trim the 20 0mA limit as required using step 11 as your guide Note that the same precautions apply After trimming the 20 0mA output limit press NEXT at the TRIM 20 MA prompt to move to the next step and the TRIM DISPLAY prompt will be indicated Trim display allows the display to be trimmed by a desired offset amount It can be used to make the display agree with another external instrument at some critical measurement point Display trim operates as a zero shift shifting all the display readings by the same amount Note that multiple point corrections of u
44. or Resistance Temperature Detector RTD for two wire process loops 10 0600 four digits of this model suffix represent the following options respectively 0 Without Display Display Ordered Separately 6 Output Two Wire Current 0 Enclosure 0 Standard Surface Mount 0 Approvals CE FM amp CSA CSA amp FM rated for non incendive hazardous location applications in Class Div 2 Groups A B C amp D Class Il Div 2 Groups F amp G and Class Ill Div 2 INPUT SPECIFICATIONS The unit must be wired and configured for the intended input type and range see Installation Section for details See Table 4A and 4B for supported input types and ranges RTD User configurable for one of five RTD types noted in Table 4A Module provides sensor excitation linearization lead wire compensation and sensor fail safe break detection Input Configuration Two three or four wire Kelvin Excitation Current 0 3mA DC nominal all types Input Impedance 1MQ RTD and Resistance inputs Lead Wire Compensation Inherent for 3 wire and 4 wire RTD s All lead wires must be of equal size and length Maximum Lead Resistance 500 any lead Minimum Input Span 10 C for all types except copper 100 C for Cu RTD Table 4A RTD Types Ranges and Input Accuracy Pt 100Q DIN curve 200 to 850 C 0 00385 328 to 1562 F 0 25 F 0 003923 328 to 1202 F 0 25 F 80 to 320 C 112
45. p to 22 points are possible using the configuration software to configure the built in linearizer function but the display mode programmer Trim Display function differs as it applies the same offset shift to all points Press ENTER at the TRIM DISPLY prompt and you will be allowed to enter a display offset value The first line above the TRIM and DISPLY prompt indicates the current display offset value This value is adjusted in the same manner as was done for Change Zero step 7 where the sign and each digit is modified in sequence until the desired offset is entered Series 151T Two Wire Transmitter User s Manual mV TC RTD Input Transmitter Display Mode Program Procedure continued Note that this value is changed independent of the Zero Lower Range Value and Full Scale Upper Range Value without the use of calibrators or external sensor inputs and only affects the display The display will then alternately indicate PLUS or MINUS each time the NEXT button is pressed with the current offset value noted on the first line above PLUS or MINUS Press ENTER to select PLUS or MINUS as desired The display will now allow each digit of the display trim value to be changed in sequence beginning with the leftmost digit The digit that may be modified will blink indicated in underlined italics below Pressing NEXT will increment the blinking digit from the current setting through 1234567890 When the correct
46. ported Mounting Position No effect on measurement value Display See Accessories for display option Refer to Drawing 4501 765 for display dimensions Shipping Weight 1 pound 0 45 Kg packed APPROVALS xxx0 0 Agency Approvals CE CSA amp FM approvals apply This product is CSA amp FM rated for nonincendive hazardous location applications in Class Div 2 Groups B C amp D Class Il Div 2 Groups F amp G and Class Ill Div 2 ENVIRONMENTAL SPECIFICATIONS Operating Temperature 40 C to 85 C 40 F to 185 F without display installed 20 C to 70 C 4 F to 158 F with optional ATW TLD display installed Storage Temperature 40 C to 85 C 40 F to 185 F Relative Humidity 5 to 100 operating 0 100 non condensing storage Power Requirements An external loop power supply is required Terminal voltage is 12V DC minimum to 42V DC maximum Reverse polarity protection is included Maximum allowable ripple is 0 2Vp p 47 125Hz Maximum noise is 0 6mV rms Power Supply Effect Less than 0 005 of output span change per volt DC for rated power supply variations Isolation The input circuit is electrically isolated from the output power circuit for common mode voltages up to 250VAC or 354V DC off DC power ground on a continuous basis Vibration Effect 2075 maximum from 0 to 500Hz any axis Radiated Emissions EMC Meets or exceeds requirements of European Norm 55011
47. rameters require the HockeyPuck Configuration Software to select ACCESSORY ITEMS The following accessories are available from Acromag Acromag also offers other standard and custom transmitter isolator and alarm types to serve a wide range of applications please consult the factory DIN Rail Mounting Kit Model ATW DIN This kit contains a back plate with DIN rail clips installed for convenient T Type DIN rail mounting of Model 151T and 155H transmitters The backplate is threaded for attachment to the module via the captive mounting screws of the transmitter s enclosure Refer to Drawing 4501 766 to view this item LCD Display amp Field Configurator Model ATW TLD This is a 4 1 2 digit plug in Liquid Crystal Display for Model 151T and 155H Transmitters The first line of the display includes Six digits plus a polarity sign for sensor measurement indication in C F R or K The second line includes seven alphanumeric characters for display of tag number information sensor and display fault messages plus configuration prompts and menu selections The display also includes an 11 segment bar graph indicator that displays input readings in percent of calibrated range plus two push buttons labeled NEXT and ENTER for in field transmitter reconfiguration in the absence of a host computer and interface adapter A single indicator configurator can be used for several transmitters as it can be easily hot plugged into
48. to 608 F 0 25 F 76 to 482 F 0 25 F 70 to 150 C 94 to 302 F 0 25 F Notes Table 4A 1 Alpha is used to identify the particular RTD curve The value of alpha is derived by dividing the resistance of the sensor at 100 C by the resistance at 0 C a R100 c Ro c For Pt 1000 this is 138 50 100 00 or 1 385 also shown as 0 003850 0 2 Includes the transmitters s absolute digital accuracy and ambient temperature effect over the entire operating range Does not include sensor accuracy 3 Shaded entries cannot be selected in the Display Program Mode of the optional ATW TLD display and require the PC 151T Serial Interface Adapter and HockeyPuck Configuration Software to select Ni 1000 Ni 1200 Cu 10Q Thermocouple User configurable for each of eleven types of thermocouples shown in Table 4B Linearization cold junction compensation CJC and fail safe open circuit or lead break detection is included Cold Junction Compensation Digital self correcting over ambient temperature range to within 0 5 C 0 9 F Input Impedance 0 2MQ for T C inputs Maximum Lead Resistance 1KQ non grounded junction 10Q grounded junction Series 151T Two Wire Transmitter User s Manual mV TC RTD Input DC Voltage See Table 4B 15 to 115mV DC Input Impedance 1 for millivolt input Minimum Input Span 3mV Table 4B TC amp Millivolt Types Ranges amp Input A
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