Model d-RTTI User Manual - Categories On Devar, Inc.
Contents
1. III 3 9 32 4 700 0 760 Figure 1 General Dimensions POWER OAD D 9 SUPPLY LOAD Dis REMOTE NI IER La OPTION R 2 REMOTE SENSING Figure 2 Rear Panel Wiring SWIVEL LUG HOLE DIA 0 25 d 1 2 NPT PORT THREE PLACES TOP BOTTOM AND CENTER BACK INCLUDES TWO 1 2 NPT PLUGS Figure 3 Option H gray paint die cast aluminum housing POWER ON L nf NEXT NEXT i NEXT OPERATE FUNC INCR NEXT Figure 4 Configuration Flow Chart FUNC INCR NEXT NEXT FUNC Hi gt LU gt FUNC OFFS TO ENTER CONFIGURATION ON POWER UP PRESS AND HOLD FUNC INCR AND NEXT WHILE APPLYING POWER SET TEMPERATURE SCALE USE INCR OR NEXT TO TOGGLE BETWEEN F AND C USE FUNC TO ACCEPT SET 20 mA TEMPERATURE USE INCR TO EDIT FLASHING DIGIT USE NEXT TO SELECT DIGIT USE FUNC TO ACCEPT SET 4 mA TENPERATURE USE INCR TO EDIT FLASHING DIGIT USE NEXT TO SELECT DIGIT USE FUNC TO ACCEPT SET TEMPERATURE OFFSET USE INCR TO2. RFI Immunity Rated class 3 C DISPLAY Range 40 to 180 F or 40 to 82 C 0 5 F 0 9 C at 77 F 25 C Thermal Effect Zero Shift 0 002 X Reading 77 F Span Shift 0 004 X Reading 77 F MILLIAMP OUTPUT Range 4 to 20 mA Accuracy 0 7 F 0 4 C 0 1 of Span Thermal Effect Zero Display Shift 0 01 of Span per F Span Display Shift 0 01 of Span per F Supply 10 to 28 VDC Max Load ohms V supply 10V 0 020A Supply effect 0 01 of Span per Volt Load Effect 0 05 of Span per 300 Ohm Change DEFAULT CALIBRATION Display 40 to 180 F Loop 4 to 20 mA 0 to 100 F FIELD CALIBRATION Display 40 to 180 F or 40 to 82 C Output Loop The Hl and Lo Milliamp outputs must be set to represent temperatures within the displayable range 40 to 180 F or 40 to 82 C Output Limits Maximum milliamp span 220 2F or 122 C Minimum milliamp span 35 F or 20 C Maximum offset adjustment 10 degrees Method Three push buttons on back of panel PRODUCT CODING Standard Unit d RTTI Default Calibration Custom Cal d RTTI Temp at 4 mA Temp at 20 mA Options R No internal sensor Unit accepts input from external 1000 ohm platinum RTD H Add Die Cast Gray Painted Aluminum Housing 1 2 PLATE El n A ni d SCREVV 3 sa HEATSINK UUU GASKET 0 375 2 800
3. DEVAR Inc Model d RTTI User Manual Introduction The Model d RTTI is a room temperature indicator transmitter that provides an accurate indication of ambient temperature with a numeric readout and a 4 to 20 mA output signal In this manual you will find an overview of how to configure and operate this device The Model d RTTI includes the following features 4 Digit Red LED Temperature Display Fahrenheit or Centigrade Operating Modes 40 To 180 PF or 40 82 C Operating Ranges Precision RTD Temperature Sensor Field Configurable 4 20 mA Temperature Output True 2 VVire Operation Push Button Configuration Fits Standard Single Gang Electrical Outlet Box Splash Resistant Front Panel Table of Contents 1 0 General Description 1 20 Physical Description masia ad 1 3 0 Start Up 2 40 eo le Ted E 2 4 1 Using the Buttons 3 4 2 Select Temperature 5 3 43 Set Top of Range 3 4 4 Set Bottom of 3 A 4 9 0 Error Messadee iii 4 60 39bBOIIIGAllOLIS EE 4 Illustrations Fig 1 General 6 Fig 2 R
4. EDIT FLASHING DIGIT USE NEXT TO SELECT DIGIT USE FUNC TO ACCEPT TO ENTER CONFIGURATION FROM THE OPERATING MODE PRESS AND HOLD FUNC INCR AND NEXT FOR 5 SECONDS WARRANTY DEVAR INC WARRANTS THIS PRODUCT AGAINST FAILURE AS A RESULT OF DEFECTS IN MATERIAL OR WORKMANSHIP FOR A PERIOD OF TWO YEARS Should this product prove to be defective in material or workmanship during the warranty period Devar Inc will at its discretion repair or replace the defective item at no charge to the customer Products that are damaged by accident misuse fire water lightning or other acts of nature are not covered under this warranty Also not covered is damage due to shipping installation incorrect wiring or any other cause not related to a product defect Unauthorized product modification repair or attempted repair or serial number modification will void the warranty DEVAR ING 706 Bostwick Ave Bridgeport Ct 06605 USA 800 566 6822 www devarinc com MODEL d RTTI Rev A
5. ange the value of the blinking digit Press the NEXT button to change which digit blinks Edit the number then press the FUNC button again to enter the selection After the FUNC button is pressed the Startup Sequence will complete and the unit will go into the operating mode The maximum offset adjustment is 410 degrees 5 0 Messages Setting the HI or LO value to a number that falls outside of the operating range of the instrument will cause Errto be displayed and the unit will return to the edit screen so that the number can be re entered Setting the 4 to 20 mA output span span HI LO to a value of less than 35 2F or 20 will cause SPAN Err to be displayed press any button to return to the HI prompt so that the error can be corrected Setting the OFFS value to a number greater than 4 10 will cause Err to be displayed and the unit will return to the edit screen so that the number can be re entered 6 0 Specifications GENERAL Display 4 Digit LED with 0 4 inch high red characters Housing Splash resistant faceplate with rear gasket seal Material ABS Plastic faceplate with polycarbonate window and black anodized aluminum heat sink Junction Box Die Cast Gray Painted Aluminum Option H Field Wiring Screw Compression Term Block Max Torque 7 Dim Sensor 1000 Ohm Platinum RTD Conforms to DIN Standard EN 60751 Class A Open RTD Output goes upscale Temp Range 40 to 180 F 40 to 82 C 4
6. ear Panel Wiring 7 Fig 3 Option H gray paint die cast aluminum housing 8 Fig 4 Configuration 9 e 1 0 General Description The Model d RTTI Digital Room Temperature Transmitter Indicator is designed to accurately sense and display ambient room temperature and provide a 4 to 20 mA output signal that is proportional to the measured temperature to within 0 1 F The d RTTI displays ambient room temperature across an operating range of 402F to 180 F or 40 C to 82 C The standard factory configuration scales the 4 to 20 mA output signal to represent a temperature span of 0 to 100 F The user can easily reconfigure the unit in the field by using the three push button switches located on the backside of the device A precision 1000 ohm RTD sensor is used to detect the ambient temperature An option is also available that will accept its input from an external 1000 ohm platinum RTD sensor The d RTTI operates on a supply voltage of 10 to 28 Volts DC This is a true two wire devices with signal and power being provided over a single pair of wires 2 0 Physical Description The d RTTI enclosure consists of a beige 4 7 high by 2 8 wide by 3 8 thick plastic plate Captivated mounting screws and a gasket seal are provided to attach the unit to a single gang electrical outlet box The sealed front faceplate pr
7. ess the FUNC button to select the item then use the NCR or NEXT button to toggle between the two choices Press the FUNC button again to enter the selection and move on to the next prompt 4 3 Set Top of Range The Top of Range function is used to set the temperature value that corresponds to an output signal of 20 milliamps At the HI prompt press the FUNC button to select the item A four digit number will appear with the leftmost digit blinking Press the INCR button to change the value of the blinking digit Press the NEXT button to change which digit blinks Edit the number then press the FUNC button again to enter the selection and move on to the next prompt 4 4 Set Bottom of Range The Bottom of Range function is used to set the temperature value that corresponds to an output signal of 4 milliamps At the LO prompt press the FUNC button to select the item A four digit number will appear with the leftmost digit blinking Press the INCR button to change the value of the blinking digit Press the NEXT button to change which digit blinks Edit the number then press the FUNC button again to enter the selection and move on to the next prompt 4 5 Set Offset The Set Offset function is used to shift the temperature reading up or down by a small amount as a fine temperature adjustment At the OFFS prompt press the FUNC button to select the item A three digit number will appear with the leftmost digit blinking Press the INCR button to ch
8. ng COnF Pressing any button at this point will produce the first Configuration Prompt on the list of configurable operating parameters below Configuration Parameters Operation Selects whether the temperature will be displayed in F or C Selects the temperature value that will produce a 20 mA output Selects the temperature value that will produce a 4 mA output Adds a small amount of offset or zero shift to the displayed temperature this value is normally set to zero but can be used to make fine adjustments to the temperature measurement 4 1 Using the Buttons Once in the configuration mode pressing the NEXT button steps you through each of the configuration prompts F C HI LO and OFFS Pressing the FUNC button selects the indicated function and displays its current value For Fe C the display will indicate either C or F pressing either the INCR or NEXT button will toggle the between the two For HI LO or OFFS a four digit number will appear with the leftmost digit blinking Pressing the INCR button will change the value of the blinking digit Pressing the NEXT button will change which digit blinks Once the parameter has been configured press the FUNC button a second time to save the currently displayed value and continue to the next configuration prompt 4 2 Select Temperature Scale The Temperature Scale function is used to set the temperature scale to either F or C At the F C prompt pr
9. ovides a measure of splash resistance for applications where wash down is required The internal RTD temperature sensor is mounted on the backside of the black anodized aluminum heatsink that protrudes from the front of the unit The heatsink ensures temperature compliance with the ambient environment The temperature is indicated on a seven segment 0 4 inch high red LED display with a temperature resolution of one tenth of a degree The three buttons labeled FUNC INCR and NEXT are located on the backside of the d RTTI and allow the user to set the operating parameters Compression screw terminals on the rear provide connection points for the 4 to 20mA output wires and the optional remote sensor Refer to the figures 1 and 2 3 0 Startup Seduence The start up occurs after applying power to the unit The sequence is all segments lit 8 8 8 8 then type followed by then followed by two numbers ddmm and that represent the day month and year of the revision and then run After the startup sequence is complete the detected temperature is displayed and the unit is operational 4 0 Configuration To enter the configuration mode press all three buttons while powering up the unit or while the d RT TI is operational press and hold all three buttons for approximately five seconds The unit will enter the startup sequence by lighting all segments 8 8 8 8 and then displayi
Download Pdf Manuals
Related Search