Iomega DP462 User's Manual
Contents
1. WARNING Dangerous voladas are exposed at the screw terminals Always remove power before working in this area for rewiring disassembly and all other activities that involve proximity to electrical circuitry Multi Input Option Wiring The Multi Input option uses a quick disconnect terminal block to facilitate input wire changing or servicing The terminal block engages the printed circuit board PCB fingers of the Multi Input board which is located directly above the screw terminals at the rear The method of attachment is the same as for a PCB edge connector push on pull off If desired you can use the two screws that are provided for securing the connector to the instrument case Thermocouple Connections Thermocouples to multi input Q elelelelcke I Main Board T C extension wire Sensor Input Not Used Connect OUTPUT to Indicator input or to INPUT 6 of another multi input card for a series connection Observe proper polarity of terminals Side View of o Indicator Use screws at bottom to secure or loosen wire connections To attach a wire to the connector loosen a terminal clamp screw that is accessible on the bottom of the connector Note clamp screws are staggered however they are in line with their respective terminals Insert a stripped portion of wire 12mm 0 5 in into the appropriate terminal Secure the wire by tightening the clamping screw See the drawing below _ fo2. 40 milliOhms per Ohm of equal resistance in V and V leads 1 Ohm per Ohm of unbalance in V and V leads Overload Protection Power lead to ground 1500VDC or AC RMS Across inputs T C Up to 250VDC or VAC for 1 minute V to V RTD Up to 125 VDC or VAC for 1 minute V to V Up to 62 VDC or VAC for 1 minute V to Stability With Temperature Zero tpV C Span 0 01 rdg C Thermocouple Reference Junction 0 03 per degree 5 45 C Stability With Time 1 year Repeatability 7 count Accuracy with Multi Input Option Derating Adds 0 5 C 1 F to instrument accuracy specification 23 ENVIRONMENTAL PHYSICAL SPECIFICATIONS Operating Range Temperature 5 to 45 C Relative Humidity 10 80 RH non condensing Storage Range 40 to 65 C Power 115VAC 10 50 60Hz 230VAC 10 50 60HZ Size Bezel 96mm W x 48mm H Case 92mm W x 40mm H x 136mm D Maximum Weight 454 kg 1 Ib 24 USA E eset eam WARRANT VC TRIER pennen OMEGA warrants this unit to be free of defects in materiats and workmanship and to give satisfactory service for a period of 13 months from date of purchase OMEGA Warranty adds an additional one 1 month grace period to the normal one 1 year product warranty to cover handling and shipping time This ensures that our customers receive maximum coverage on each product If the unit should malfunction it must b returned to the factory for evaluation Our Customer Service Department wi
3. DP461 0 see eeeees 14 CALIBRATION 000 PREIEI E OEE ETT 17 SPECIFICATIONS osoraino nnii 20 550 4001 02A 1988 Omega Engineering inc Printed in USA Digital Panel Temperature Indicator INTRODUCTION Congratulations You have purchased the best value packed digital temperature indicator available Your new indicator is a compact panel instrument designed for accurate reliable trouble free temperature measurement It is a single channel 4 digit instrument Add on options include an alarm or multiple inputs Unpacking When unpacking your indicator compare its configuration to your order by checking the label at the top of the instrument case Also be sure the power requirement printed on the label matches your power source Report any discrepancies immediately a Standards The indicator accepts National Bureau of Standards NBS thermocouple types J K T E S R and B plus 3 wire platinum resistance temperature detector RTD sensors with 00385 or 00392 The display auto ranges between 0 1 and 1 resolution An internal switch can be set to disable the autoranging function fixing the display in 1 resolution for all sensor types R S and B thermocouples display in 1 resolution only FEATURES Microprocessor controlled for accurate measurements and ease of use Auto ranging display for maximum resolution and accuracy No tools required for removal of lens or Slecton
4. 1 resolution lock snap off the front panel lens to gain access to the display board Behind the display is a rotary switch used to select sensor type range and to determine the indicators s calibration mode A 2 pole DIP dual in line package switch on the display board is used to select the F C Readout and 1 Lock Note This switch may be either a rocker type press down on appropriate end or a slider type slide toward appropriate end The drawings detail the adjustment activities l ROTARY SWITCH behind display i board E E U CF 1 LOCK ES T 7R DIP SWITCH K B Mir KE ON sC 0 1 1 AUTO PT2PT1 10 Push down here or slide towards this end for Push down here or slide toward this end to lock instrument in 1 Fahrenheit display resolution DIP SWITCH Push down here Push down here or slide towards this end for Celsius display or slide towards this end for auto ranging between 0 1 amp 1 0 resolution ROTARY SWITCH T E S J R B PT2 GAL Insert a smal screwdriver or trimmer adjusting tool through the hole in the display board Align the switch arrow so that it points at the position you have chosen J K T E S R and B refer to thermocouple type PT1 and PT2 refer to RTD type PT1 a 00385 PT2 a 00392 11 To change between Thermocouple and RTD ranges you must position an internal jump jack to select the sensor type Remove the c
5. ALARM 2 mm jump jack Interboard A HHVLO SELECT ALARM1 Connector jump jack 16 5 After you finish changing the limit value pressing the VIEW and SET buttons at the same time to return to the measurement display mode The newly programmed limit value is now in effect and stored in the non volatile memory CALIBRATION Calibrating your indicator once a year is recommended to assure specified accuracy Be sure to calibrate your indicator whenever you change between thermocouple and RTD type sensors Follow the calibration procedure on the next pages for the respective sensor type The calibration controls are behind the front panel lens See the drawing below ROTARY SWITCH behind Display SPAN CONTROL ZERO CONTROL For Thermocouple Input Equipment Required A Precision DC voltage source with a resolution to 1V accuracy 0 01 2yV Interconnecting copper wire from the DC source to the unit Trimmer adjusting tool blade type Procedure 1 Observing contact polarity connect the voltage source to the Thermocouple inputs as shown in the wiring diagram on page 4 Be sure the power is OFF when making connections Snap off the front panel lens Set the rotary switch to the CAL position see page 17 Ensure that the jump jack is set for Thermocouple Input see page 12 3 Adjust the voltage source output to 0 00mV 4 Adjust the ZERO control for a display reading of 0 0 0 1 Note display re
6. DP460 DP461 and DP462 Digital Panel Thermometers for Thermocouples and RTDs CY OMEGA soppaso zan m OMEG A Operator s Manual An OMEGA Technologies Company EOMEGA Servicing USA and Canada Call OMEGA Toll Free USA Canada One Omega Drive Box 4047 976 Bergar Stamford CT 06907 0047 Laval Quebec H7L 5A1 Telephone 203 359 1660 Telephone 514 856 6928 FAX 203 359 7700 FAX 514 856 6886 Sales Service 1 800 826 6342 1 800 TC OMEGA Customer Service 1 800 622 2378 1 800 622 BEST Engineering Service 1 800 872 9436 1 800 USA WHEN TELEX 996404 EASYLINK 62968934 CABLE OMEGA Servicing Europe United Kingdom Sales and Distribution Center 25 Swannington Read Broughton Astley Leicestershire LE9 6TU England Telephone 44 0455 285520 FAX 44 0455 283912 The OMEGA Complete Measurement and Control Handbooks amp Encyclopedias Temperature V Data Acquisition Systems w Pressure Strain amp Force Electric Heaters Flow and Level r Environmental Monitoring oH and Conductivity and Control Call for Your FREE Handbook Request Form Today 203 359 RUSH 550 4001 02A Before Using Your OMEGA ENGINEERING DP460 Series Indicator Your DP460 Series Indicator measures both thermocouples and RTD sensors Calibration is required whenever you change between thermo couples and RTDs see page 12 for information on calibrating your instrument Your new DP460 Series Indicato
7. adings take up to 3 seconds to respond to changes in control setting 5 Adjust the voltage source output to 39 000mV 18 Adjust the SPAN control for a display reading of 560 0 0 1 Note display readings take up to 3 seconds to respond to changes in control setting Reset the rotary switch to the desired thermocouple type and replace the front panel lens This completes calibration for thermocouple input For RTD Input Equipment Required A precision resistance decade box with a resolution of 0 012 and an accuracy of 0 02 interconnecting copper wire from the resistance source to the 500T Trimmer adjusting tool blade type Procedure 1 shown in the wiring diagram on page 4 Be sure the power Connect a decade box to the RTD input V V and l as is OFF when making connections Snap off the front panel lens Set the rotary switch to the CAL position see page 17 Ensure the jump jack is set for an RTD input see page 12 3 Adjust the decade box to 0 00 Q 4 Adjust the ZERO control for display reading of 0 0 0 1 Note display readings take up to 3 seconds to respond to changes in control setting 5 Adjust the decade box to 265 00 Q Adjust the SPAN control for a display reading of 543 8 0 1 Note display readings take up to 3 seconds to show changes in control setting Set the rotary switch to the desired RTD range R PT1 a 00385 PT2 a 00392 and replace th
8. e front panel lens This completes calibration for RTD input 19 FUNCTIONAL SPECIFICATIONS Input Range Table 0 1 Resolution 1 Resolution mone seit 30 910 90E 21 1 25108 Hpi te O to 1770 C S Thermocouple 39 to 3218 F 0 to 1769 C 601 to 3325 F a 00385 3 wire 99 9 to 999 9 F 329 to 1585 F PT100 RTD 99 9 to 850 8 C 202 to 851 C a 00392 3 wire 99 9 to 999 9 F 332 to 1563 F 20 Input Impedance Thermocouple 20MQ exclusive of break detect current effects RTD 16 9kQ V input 16 9kQ l input Break Detection Upscale 50 nanoamps A D Read Rate 2 per second nominal 1 readings 1 per second nominal 0 1 readings Reference Junction Thermocouple Internal automatic Power 115VAC 10 50 60Hz 230VAC 410 50 60Hz Jumper selectable 21 PERFORMANCE SPECIFICATIONS Reference Operating Conditions ROC 10 line voltage 23 2 C ambient temperature lt 80 RH non condensing Accuracy at ROC 1 count LSD e RESOLUTION 0 1 RESOLUTION S R B Thermocouple 1 plus 0 05 RDG PTa 00385 1 plus 0 03 RDG 0 5 C or 0 9 F a 00392 RTD Multi Input Option Accuracy Add 0 5 C 1 F to accuracy specification when Multi Input option is used Noise Rejection NMRR 2 60 dB 50 60 Hz 0 1 Hz CMRR gt 120 dB 50 60 Hz 0 1 Hz with 250Q unbalance 22 RTD Leadwire Error 150 nA excitation current
9. ies assembly Easy sensor selection Switchable Centigrade Fahrenheit display Easy calibration no complex setups required Compact size to conserve panel place Universal screw terminals for easy connection to signal leads and power PANEL INSTALLATION 1 Prepare a mounting panel cut out by cutting a rectangular hole 92mm 0 6mm 0 0mm x 45mm 0 6mm 0 0mm in the desired location The maximum panel thickness is 9 5mm 3 8 inches Remove the mounting bracket from the instrument housing by removing the two bracket screws on the rear of the indicator Install the indicator in the panel cutout from the front side of the panel Be sure the instrument is right side up Reinstall the mounting bracket on the indicator Tighten the bracket screws to achieve a snug fit against the panel Avoid distorting or cracking the housing by not over tightening the bracket screws WIRING Input Sensor and Power Wiring Connect the input sensor and power wires to the screw terminals at the back of the instrument as shown below POWER O O p SENSOR OWER Thermocouple Hot Gnd i l Neutral BLK GRN WHT 410VAC or 220VAC is selectable using a switch on the indicator s main circuit board Check the instrument s tag for the voltage range set at the factory You may move the switch to match your power source if needed Top View of Main Board Display Transformer b 3 Switch Sow Terminal Block
10. ircuit board from the front of the nousmg with power off to access the jump jack 1 Snap off front panel lens 2 Slide electronics out from housing by spreading open instrument front while pushing from rear on screw terminals 3 Locate jump jack at left rear portion of circuit board The jump jack is installed over a pair of pins Place jump jack over the pin pair required by the sensor type See drawing below for details ro Place jump jack over two pins toward rear for Thermocouple FEEFE A LEFT REAR OF CIRCUIT BOARD Place jump jack over two pins toward front for RTD input 12 Using the Multi Input Option Select the input you wish to display by turning the front panel selector switch The knob s index mark indicates the selected input as labeled on the front panel lens Turn knob to select channel 13 Using the Alarm Options The Alarm LED indicator will turn on and the corresponding relay output will change state when an alarm condition exists The LED wili turn off and the relay will reset automatically when the alarm limit is no longer exceeded The alarm option uses two front panel buttons SET and VIEW to set up and view the alarm trip point To examine the current limit value press the VIE W button For dual alarm versions hold the VIEW button for 3 seconds to see the second limit value Releasing the button returns you to the measurement mode Single alarm unit ha
11. ll issue an Authorized Return AR number immediately upon phone or written request Upon axamination by OMEGA if the unit is found to be defective it will be repaired or replaced at no charge However this WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of being damaged as a result of excessive corrosion or current heat moisture or vibration improper specification misapplication misuse or other operating conditions outside of OMEGA s control Components which wear or which are damaged by misuse are not warranted These include contact points fuses and triacs We are glad to offer suggestions on the use of our various products Nevertheless OMEGA only warrants that the parts manufactured by It will be as specified and free of defects i OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER EXPRESSED OR IMPLIED EXCEPT THAT OF TITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED LIMITATION OF LIABILITY The remedies of buyer set forth harein are exclusive and the total liability of OMEGA with respect to this order whether based on contract warranty negligence indemnification strict liability or otherwise shalt not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or spacial damages i Every precaution f
12. mber to cover the COST of the under warranty and repair calibration 3 Repair instructions and or specific 2 Model and serial number of product and problems you are having with the product 3 Repair instructions and or specific ac problems you are having with the product OMEGA s policy is to make running changes not model changes whenever an improvement is possible This affords our customers the latest in technology and engineering OMEGA is a registered trademark of OMEGA ENGINEERING INC Copyright 1994 OMEGA ENGINEERING INC All rights reserved This documentation may not be copied photocopied repraduced translated or reduced to any electronic medium or machine readable form in whole or in part without prior written consent of OMEGA ENGINEERING INC
13. or accuracy has been taken in the preparation of this manual however OMEGA ENGINEERING INC neither assumes responsibility for any omissions or errors that may appear nor assumes liability for any damages that result from the use of the products in accordance with the information contained in the manual SPECIAL CONDITION Should this equipment be used in or with any nuctear installation or activity buyer will indemnify OMEGA and hold OMEGA harmless fram any liability or damage whatsoever arising out of the use of the equipment in such a manner i a RETURN REQUESTS INQUIRIES meeen Direct all warranty and repair requests inquiries to the OMEGA ENGINEERING Customer Service Department Call toll free in the USA and Canada 1 800 622 2378 FAX 203 359 7811 International 203 359 1660 FAX 203 359 7807 BEFORE RETURNING ANY PRODUCT S TO OMEGA YOU MUST OBTAIN AN AUTHORIZED RETURN AR NUMBER FROM OUR CUSTOMER SERVICE DEPARTMENT IN ORDER TO AVOID PROCESSING DELAYS The assigned AR number should then be marked on the outside of the return package and on any correspondence FOR WARRANTY RETURNS please have FOR NON WARRANTY REPAIRS OR CALI the following information available BEFORE BRATION consult OMEGA for current repair contacting OMEGA calibration charges Have the following 1 P O number under which the product information available BEFORE contacting was PURCHASED OMEGA 2 Model and serial number of the product 1 P O nu
14. r details 3 wire RTD connections to Bus all 3rd LEG s to Main Board Terminal multi input option Alarm Option Wiring Connections to the alarm option are provided by blade terminals accessible at the back of the instrument Female connectors are supplied to wire the alarm option into your system See following drawing The relay override connection single alarm version only is provided to prevent relay closure A switch closure can be used to acknowledge and silence alarms that otherwise would be maintained by the alarm option relay contacts WARNING Dangerous voltages are exposed at the screw terminals Always remove power before working in this area for rewiring disassembly and all other activities that involve proximity to electrical circuitry Relay Override SPST Toggle Switch Close to force or keep relay in untrip condition Contact Rating 0 5A 120VAC noninductive toad Normally Closed Relay Contact Normally Open Relay Contact Common Relay Coniact 2nd T isto Alarm Option Alarm Option wiring wiring Dual Alarm Unit Wiring OPERATION Power Power is applied to the indicator as long as it is plugged into an active power source To remove power turn off the main switch or unplug the instrument Do NOT unscrew power leads while the instrument is plugged into the main Range Calibration Mode Select F C Select and 1 Lock To select a range F or C display or
15. r is factory set for either thermocouple use or RTD use according to your order The factory set for thermo couples is type K F and for RTDs is alpha 00385 F The DP460 Series Model DP460 is the base digital indicator for the series Model DP4671 is the Model DP460 with the Alarm Option Model DP462 is the Model DP460 with the Multi lnput Option The alarm option or multi input option can be ordered separately at a later date from OMEGA ENGINEERING for field installation into a Model DP460 converting your DP460 into a DP461 or DP462 Service If you have any difficulty with your DP460 Series Indicator or if there is any _ discrepancy upon unpacking your instrument contact the OMEGA Cus tomer Service Department at 1 800 872 9436 immediately TABLE OF CONTENTS INTRODUCTION EA tent heute rains 1 FEATURE S onien aa iia ians 2 PANEL INSTALLATION 0 cc eecesseseeeseesseenseneneeeneeees 2 WIRING sase eae teres eee 4 input Sensor and Power Wiring sssessesssssssesesrseees 4 Multi input Option Wiring DP462 enses 6 Alarm Option Wiring DP461 ee eee 9 OPERATION sseesseesesesressesressseeeerreererseonveserereennesrsnerese 10 POWGE ncaa sonaneeeesesesensacssessonseteneseens 10 Range Calibration Mode Select F PG Select and 1 LOCK oe eceseetseeeeeeeseeens 10 Changing Between Thermocouple ANG RTD Range serierna inen 12 Using the Multi Input Option DP462 iseenesesse 13 Using the Alarm Option
16. s one red LED Dual alarm unit has one yellow and one red Programming the Limit Value s 1 Press VIEW and SET buttons at the same time The current limit value is displayed ready to be programmed For dual alarm versions program the second limit value by holding the VIEW button for 3 seconds until the display changes to show second value then with the VIEW button still held press the SET button Follow steps 2 5 below Note During the process of changing the limit value the instrument is still taking readings and performing alarm checking against the current limit value Note during the process of changing the limit value the instrument is still taking readings and perform ing alarm checking against the current limit value Select the digit or decimal point to be changed by pressing the VIEW button as required The current selection is indicated by a blinking digit or decimal point Change the blinking number or decimal point location by pressing the SET button Repeat steps 2 and 3 as necessary to set a new limit value 15 To Configure for a Hl or LO Alarm 1 Snap off the front panel lens 2 Locate the jump jack on the board behind the VIEW button 3 Place the jump jack over the appropriate pair of pins for a desired alarm action See the drawing below for details View Switch Place jump jack over these pins for HI ALARM Piace jump jack over these pins for LO ALARM a HI LO SELECT
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