Omega Engineering DPG10L User's Manual
Contents
1. f OMEGA An OMEGA Technologies Company http www omega com e mail info omega com DPG10L LARGE DISPLAY PRESSURE GAUGE M3367 0606 Where Do Find Everything I Need for Process Measurement and Control OMEGA Of Course TEMPERATURE Y Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies Y Wire Thermocouple RTD amp Thermistor Y Calibrators amp Ice Point References Y Recorders Controllers amp Process Monitors Y Infrared Pyrometers PRESSURE STRAIN AND FORCE Y Transducers amp Strain Gages Y Load Cells amp Pressure Gages Y Displacement Transducers Y Instrumentation Accessories FLOW LEVEL Y Rotameters Gas Mass Flowmeters amp Flow Computers Y Air Velocity Indicators Y Turbine Paddlewheel Systems Y Totalizers amp Batch Controllers p Y H CONDUCTIVITY pH Electrodes Testers amp Accessories Y Benchtop Laboratory Meters Y Controllers Calibrators Simulators amp Pumps Y Industrial pH amp Conductivity Equipment DATA ACQUISITION Y Data Acquisition amp Engineering Software Y Communications Based Acquisition Systems Y Plug in Cards for Apple IBM amp Compatibles Y Datalogging Systems Y Recorders Printers amp Plotters HEATERS Heating Cable Cartridge amp Strip Heaters Immersion amp Band Heaters Flexible Heaters Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL Y Metering amp Contr2. or application assistance USA and Canada Mexica Benelux Czech Republic France Germany Austria United Kingdom ISO 9002 Certified 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 Tel 001 800 826 6342 FAX 001 203 359 7807 En Espa ol 001 203 359 7803 e mail espanol omega com info omega com mx Servicing Europe Postbus 8034 1180 LA Amstelveen The Netherlands TEL 31 0 20 6418405 FAX 31 0 20 6434643 Toll Free in Benelux 0800 0993344 e mail nl omega com Rud arm dy 1868 733 01 Karvin TEL 420 0 69 6311899 FAX 420 0 69 6311114 Toll Free in Czech Rep 0800 1 66342 e mail czech omega com 9 rue Denis Papin 78190 Trappes TEL 33 0 130 621400 FAX 33 0 130 699120 Toll Free in France 0800 4 06342 e mail france Oomega com Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7056 3017 FAX 49 0 7056 8540 Toll Free in Germany 0800 TC OMEGA e mail germany omega com One Omega Drive River Bend Technology Centre Northbank Irlam Manchester M44 5EX United Kingdom TEL 44 0 161 777 6611 FAX 44 0 161 777 6622 Toll Free in the United Kingdom 0800 488 488 e mail sales omega co uk OMEGA is a registered trademark of OMEGA ENGINEERING INC Copyright 2005 OMEGA ENGINEERING INC All right
3. the display will return to reading the system pressure To Set Alarms Press and hold the MODE key until the reading starts flashing then Press the MODE key twice more The display will read AL 1 Press the ENTR key to display the alarm setting Pressing the ENTR key again will set the alarm and return the display to the normal mode If the alarm setting is to be changed the up and down keys can be used to increase or decrease the setting one count at a time Pressing the MODE key and holding it down while Pressing up or down momentarily will change 10 counts for each key operation If the MODE key and up or down are held down simultaneously the setting will FREE RUN until the key is released NOTE While setting the alarm only one segment of the analog scale is displayed and it corresponds to the full scale of the alarm setting When the desired alarm setting is displayed Press ENTR to set and return to normal mode To set alarm 2 Press and hold the MODE key until the reading starts flashing then Press the MODE key three more times The display will read AL 2 Press ENTR key to display the alarm setting Pressing the ENTR key again will set the alarm and return the display to the normal mode If the alarm setting is to be changed the up and down keys can be used to increase or decrease the setting one count
4. at a time Pressing the MODE key and holding it down while Pressing up or down momentarily will change 10 counts for each key operation If the MODE key and up or down are held down simultaneously the setting will FREE RUN until the key is released NOTE While setting the alarm only one segment of the analog scale is displayed and it corresponds to the full scale of the alarm setting When the desired alarm setting is displayed Press ENTR to set and return to normal mode DPG10L M3367 0606 3 5 The alarm set point indicator segment of the bar graph will blink when that set point is activated The hookup of optional outputs is covered later in this manual 4 0 Zero Trimming 4 1 Should it be necessary to readjust the Zero setting an adjustment has been provided Prior to adjusting the zero verify that you are displaying the gross zero reading by performing step 1 3 On the back of the case in the upper left there are two cover screws labeled Z and S Remove the screw covering the Z and utilizing a jewelers screwdriver turn the small screw to re zero the unit The ideal zero is indicated by a reading of 0000 with an intermittently flashing sign NOTE Do not readjust the S as this will invalidate the factory calibration 5 0 Re calibration This procedure requires a known pressure source of at least 0 1 accuracy in order to fully utilize the pot
5. der number under which the product was PURCHASED 2 Model and serial number of the product under warranty and 3 Repair instructions and or specific problem relative to the product Non Warranty Repairs For NON WARRANTY REPAIRS consult OMEGA for current repair charges Have the following information available BEFORE contact OMEGA 1 Purchase Order number to cover the COST of the repair 2 Model and serial number of the product and 3 Repair instructions and or specific problem relative to the product DPG10L M3367 0606 e Instructions The model DPG1OL Digital Pressure Gauge has several features not normally found as standard in Digital Pressure Gauges These include the Analog Scale Tare and Peak Holds The Analog Scale is a 40 segment display that appears around the edge of the liquid crystal display This scale represents the pressure reading as a percentage of full scale and each individual segment equals 2 5 The Tare feature provides a method of zeroing out an existing offset such as the weight of the platform on a hydraulic scale The Hold feature allows the user to select Hi or Lo When the Hold is enabled the reading displayed is the highest or lowest pressure experienced in the system since Hold was enabled and this information will continue to be updated at the rate of six times a second until Hold is disabled 1 0 To Zero or TARE OUT an existing offset 1 1 Press and hold the MODE key until the reading start
6. ented as an output The typical configuration will require an external power supply and a 1 to 10K Ohm pull up resistor connected between the positive terminal of the power source and each alarm output Inductive load switching such as small solenoids or relays is also possible utilizing the alarm output as a low side switch The use of a diode or a capacitor across the load terminals is required to reduce kick backs DPG10L e Wiring Typical 4 20 mA Circuit Gauge Connector EXCITATION Process Controller Vin A EXCITATION 4 20 mA CURRENT LOOP RL Typical 0 5 VDC Circuit Gauge Connector EXCITATION A B fF 04 OUTPUT C OUTPUT EXCITATION _ _ SUPPLY VOLTAGE M3367 0606 Typical 4 20 mA Circuit with Open Collector Alarms Gauge Process Connector Controller Excitation A Vin ae 4 20mA Loop Excitation F B RL c Dig Gnd ab DC Power D Alarm 2 Supply Alarm g Alarm 1 Loads F Gnd Optional but recommended RL 250 ohm for 1 5 V output RL 500 ohm for 2 10 V output for surge protection Any voltage up to 60 VDC 160 mA max DO NOT EXCEED 750 OHMS WITH 24 VDC SUPPLY NOTE Alarm loads may be relay coils as shown below Connect 1 A 400 V diodes to protect from relay
7. ential of the DPG1OL If not available the gauge may be returned to OMEGA for re certification 5 1 With 0 psig applied port vented adjust zero per instructions of 4 0 5 2 Apply full scale pressure to the pressure port and adjust the S until the display reads the correct pressure 5 3 Re check zero and re adjust the zero if required 5 4 Repeat steps 5 2 and 5 3 until no further adjustment is required 6 0 Battery Replacement 6 1 To access the battery the unit must be partially disassembled Remove the thread ring surrounding the lens by turning counter clockwise Carefully turn the unit face down with one hand prepared to catch the lens and display board as they fall from the housing Do not allow the display board to fall more than an inch or two as there are wires connecting it to the main housing 6 2 Disconnect the two wire connector that leads from the batteries to the electronic Then remove the battery or batteries from the holder s and replace with the same type that was removed taking care to observe the correct polarity Re connect the battery connector M3367 0606 DPG10L e DPG1OL Output Options Several output signals are available on the circular 6 pin connector located on the rear of the unit Depending on the option selected the signals are present on pins as follows DPG1OL Pin Out Table 4 20 mA 0 2 VDC 0 5 VDC with Alarm 4 20 mA 0 5 VDC with Alarm 0 2 VDC Ex Pwr with Alarm A Excita
8. kick Alarm 2 000000 gt Alarm 1 1000000 gt gt To Power Thank You for Purchasing OMEGA Products 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 It is the policy of OMEGA to comply with all worldwide safety and EMC EMI regulations that apply OMEGA is constantly pursuing certification of its products to the European New Approach Directives OMEGA will add the CE mark to every appropriate device upon certification The information contained in this document is believed to be correct but OMEGA Engineering Inc accepts no liability for any errors it contains and reserves the right to alter specifications without notice WARNING These products are not designed for use in and should not be used for patient connected applications Again thank you for your interest in OMEGA We welcome the opportunity to help you achieve your application goals omega com EOMEGA OMEGAnet On Line Service Internet e mail www omega com info omega com USA ISO 9001 Certified Canada Servicing North America One Omega Drive P O Box 4047 Stamford CT 06907 0047 TEL 203 359 1660 FAX 203 359 7700 e mail info omega com 976 Bergar Laval Quebec H7L 5A1 TEL 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical
9. ol Instrumentation ERA Refractometers Pumps amp Tubing Air Soil amp Water Monitors Industrial Water amp Wastewater Treatment pH Conductivity amp Dissolved Oxygen Instruments SES S M3367 0606 DPG10L Table of Contents rasta AMM A A 2 Ret rn REQUEST TOQUES sortea 3 INS T C T T S AAA ia ae i eiai rei a e eain 4 To Zero or TARE OUT an existing Ot is 4 To select PEAK HI or PEAK LO hold functions 4 TORIO AAA 3 LO i 6 Recalhbratl ON A 6 Battery Replacement pri 6 QUE aa 7 0 2 V Analog Output Signal Option 2 sssssssssss ss ssssz sz sez z e 7 Alar mO AA aE e E Eaa 7 Maia 8 DPG10L M3367 0606 e Warranty Disclaimer OMEGA ENGINEERING INC warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase OMEGA s 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 OMEGA s customers receive maximum coverage on each product If the unit malfunctions it must be returned to the factory for evaluation OMEGA s Customer Service Department will issue an Authorized Return AR number immediately upon phone or written request Upon examination by OMEGA if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any acti
10. on of the purchaser including but not limited to mishandling improper interfacing operation outside of design limits improper repair or unauthorized modification This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been 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 are not warranted including but not limited contact points fuses and triacs OMEGA is please to offer suggestions on the use of its various products However OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA either verbal or written OMEGA warrants only that the parts manufactured by it will be as specified and free of defects OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER EXPRESS 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 purchaser set forth herein are exclusive and the total liability of OMEGA with respect to this order whether based on contract warranty negligence indemnification strict liability or otherwise shall not exceed the
11. purchase price of the component upon which liability is based In no even shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on humans Should any Product s be used in or with any nuclear installation or activity medical application used on humans or misused in any way OMEGA assumes no responsibility as set forth in our basic WARRANTY DISCLAIMER language and additionally purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product s in such a manner M3367 0606 DPG10L e Return Requests Inquiries Direct all warranty and repair requests inquiries to the OMEGA Customer Service Department BEFORE RETURNING ANY PRODUCT S TO OMEGA PURCHASER MUST OBTAIN AN AUTHORIZED RETURN AR NUMBER FROM OMEGA S 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 The purchaser is responsible for shipping charges freight insurance and proper packaging to prevent breakage in transit Warranty Returns For WARRANTY RETURNS please have the following information available BEFORE contacting OMEGA 1 Purchase Or
12. s flashing Release MODE key 1 2 Press ENTR key until the reading becomes 0000 NOTE Tare range is 100 of Full Scale 1 3 To return to the Gross reading press and hold ENTR then with ENTR still depressed press MODE until the reading returns to the gross then release both keys 2 0 To select PEAK HI or PEAK LO hold functions 2 1 Press and hold the MODE key until the reading starts flashing Release the MODE key then press MODE key once more the display will read HOLD Press ENTR key once the display will read NO HR Using up or down keys select NO H no Hold H Lo Peak Low Hold or H Hi Peak High Hold Press ENTR key to lock your selection NOTE When the Hold function is enabled PEAK is displayed this will be the same for Hi or Lo Hold You must remember which you have engaged 2 2 To reset after capturing a Hi Peak or Lo Peak Press and hold MODE key until the reading starts flashing Release the MODE key then press ENTR hold momentarily then release M3367 0606 DPG10L 2 3 3 0 3 1 3 2 3 3 3 4 To disengage Hold press and hold the MODE key until the reading starts flashing Release the MODE key then press the MODE key once more the display will read HOLD Press the ENTR key the display will read NO H Press the ENTR key once more and
13. s reserved This document may not be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form in whole or in part without the prior written consent of OMEGA ENGINEERING INC
14. tion Excitation Excitation N C N C Pwr Excitation B Excitation Excitation Output Output Output Pwr Com Output C Dig Gnd N C Output Output Output N C Out Ex D Alarm 2 N C Excitation Alarm 2 N C N C Alarm 2 E Alarm 1 N C N C Alarm 1 N C N C Alarm 1 F Gnd N C Gnd Gnd N C N C Dig Gnd N C indicates no connection 1 0 2 V Analog Output Signal Option The analog output signal is available on pins B and C of the circular 6 pin connector located on the rear of the unit The signal is short circuit protected and capable of driving low impedance external loads with fixed gain to a specified output level with 10K Ohm and above loads Frequency response is a function of the pressure range generally 1 to 3 KHZ Loading of the analog output will result in a reduction of the battery life expectancy due to the additional current through the external load 2 Alarm s Option The two open drain alarm output signals are present on pin D alarm 2 and pin E alarm 1 of the output connector The alarm trip points are software selected by using the unit s front key pad see section 3 0 in the instructions section of this manual When active they are capable of sinking 500 mA at 60 VDC Max with 7 5 ohms typical ON resistance to the digital ground as if they were two independent SPST normally closed switches with one end connected to the digital ground and the other end pres
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