Omega PCL120 manual-NEW.qxd
Contents
1. Shop online at omega com SEOMEGA omega com e mail info omega com For latest product manuals omegamanual info M 4289 0206 PCL120 Loop Calibrator Table of Contents 1 Introduction 1 1 Customer Service aaa 1 2 Unpacking aaa 1 3 Safety Information 2 Nomenclature 3 Getting Started A Battery Save Feature B HART Resistor Setup 4 Basic Operating Modes A Milliamp Source B Milliamp Simulation C Milliamp Measure 0005 D Milliamp Measure with Loop Power E Voltage Measure a a 5 Advanced Operating Modes A Auto Step Ramp Mode B Percent Error Mode C Min Max Datalogging 6 Maintenance A Battery Selection 10 B Input Protection 10 C Gallbration ima as oe va ead eens 10 7 Specifications 11 PCL120 1 Introduction The Omega PCL120 is designed to be a complete 4 to 20mA current calibrator for both trouble shooting and calibrating current loops Very high accuracy combined with several unique features makes the PCL120 an easy to use and highly flexible calibration tool The PCL120 can source simulate 2 wire or measure loop currents up to 24mA It can also measure process signal voltages up to 28VDC with t2. To activate the Auto Step Ramp mode use the following procedure 1 The Auto Step Ramp function can be used in either the source mA or simulate MA mode Place the PCL120 in one or the other mode 2 Connect the PCL120 to the device under test 3 Press the key once for the step mode twice for the slow ramp mode and three times for the fast ramp mode With each press a small annunciator will appear on the lower left side of the LCD indicating which one of the step ramp modes has been selected 4 Once enabled the step ramp mode will run continuously until another key is pressed B Percent Error Mode This unique feature will calculate error as a percentage of span 4 mA to 20 mA yields a 16 mA span The percent error feature allows the user to Zero Out the mA display so that the deviation from the ideal value can be displayed on the error display The procedure is as follows 1 Connect the PCL120 to the unit under test 2 Place the PCL120 in one of the mA output modes source or simulate 3 Adjust the PCL120 to the desired output 4 If the unit under test does not read exactly as it should hold down the ERROR key and adjust the knob unit until the unit under test reads correctly Continue to hold down the key 5 The reading in the display area will be the error or deviation calculated as a percentage of span ERROR 6 When the operation key is released the display will retu
3. gt gt i enl AC Alternating Current AC DC Battery CE Complies with European Union Directives DC Double Insulated Electric Shock Fuse PE Ground Hot Surface Bum Hazard Read the User s Manual Important Information Off On Canadian Standards Association The following definitions apply to the terms Warning and Caution Warning identifies conditions and actions that may pose hazards to the user Caution identifies conditions and actions that may damage the instrument being used Use the calibrator only as specified in this manual otherwise injury and damage to the calibrator may occur 2 ZN warning To avoid possible electric shock or personal injury Do not apply more than the rated voltage See specifications for supported ranges Follow all equipment safety procedures Do not use the calibrator if it is damaged Before you use the calibrator inspect the case Look for cracks or missing plastic Pay particular attention to the insulation surrounding the connectors Select the proper function and range for your measurement Make sure the battery cover is closed and latched before you operate the calibrator Remove test leads from the calibrator before you open the battery door Inspect the test leads for damaged insulation or exposed metal When using the probes keep your fingers away from the probe contacts Keep your fingers behind the finger guards on the test
4. interface and selecting the decade to be adjusted 4 The output can also be stepped in 4 mA steps 25 using the 25 key 5 The auto step feature provides automated output changes Refer to the Auto Modes Section of the manual for more information B Milliamp Simulation Figure 4 shows how to connect the PCL120 to act as a two wire transmitter using an external power supply In this application the power for the loop comes from the external supply and the PCL120 simply controls the current flow through the loop The procedure for controlling the output is the same as the milliamp source POWER G SUPPLY 4 to 20MA 30 VDC MAX EOMEGA PCL120 20 000 91 420mA 100 00 DEVICE or uo y zu MN PCL120 acts like a 2 wire transmitter in the Simulate Mode Figure 4 Simulating 4 to 20 mA C Milliamp Measure Figure 5 shows how to connect the PCL120 to measure a 4 20 mA loop In this application the PCL120 is simply reading the loop current and displaying the current in mA on the main display The lower smaller display area is showing percentage relative to a 4 to 20 mA Span D Milliamp Measure with Loop Power Again Figure 5 shows the proper connections But in this case the device under testis a two wire transmitter that requires an external power supply to generate an output current In this app
5. leads Do not use the calibrator if it operates abnormally Protection may be impaired When in doubt have the calibrator serviced Do not operate the calibrator around explosive gas vapor or dust Disconnect test leads before changing to another measure or source function When servicing the calibrator use only specified replacement parts To avoid false readings which could lead to possible electric shock or personal injury replace the battery as soon as the battery indicator appears A Caution To avoid possible damage to calibrator or to equipment under test Use the proper jacks function and range for your measurement or sourcing application 2 Nomenclature Mode Annunciators caco route Simultaneous SOURCE I Display Step Ramp ak 4mA 0 00 Annunciators cu 000 Y 20mA 20 00 Cay 100 00 On Off Mode Key Auto Step Ramp gt 0 MODE auro Selects Between Loop Power Key Step and Ramp Applies 24VDC pe Loop pwr ERROR 25 MN slow or fast Loop Power in mA Measure Mode 25 Key TI Steps Output 4 8 12 16 20mA 96 Error Key Sa Digital Knob Allows User to for Output Control Display the Error Actual vs Ideal At Any Calibration Point lt gt L Cursor Control Keys Select Decade To Be Controlled Figure 1 3 Getting Started A Battery Save Feature After unpacking the PCL120 it should be
6. 26 D 75392 Deckenpfronn Germany Tel 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail info omega de One Omega Drive River Bend Technology Centre Northbank Irlam Manchester M44 5BD United Kingdom Tel 44 0 161 777 6611 FAX 44 0 161 777 6622 Toll Free in United Kingdom 0800 488 488 e mail sales omega co uk 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 human applications 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 A
7. TION 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 purchase price of the component upon which liability is based In no event 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 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 respon
8. Yes Size 5 7 x 3 15 x 1 43 Weight 12 oz 11 omega com EOMEGA OMEG Anet Online Service Internet e mail www omega com info omega com USA ISO 9001 Certified Canada Servicing North America One Omega Drive 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 Canada Tel 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical or application assistance USA and Canada Mexico 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 En Espa ol 001 203 359 7803 e mail espanol omega com FAX 001 203 359 7807 info omega com mx Servicing Europe Postbus 8034 1180 LA Amstelveen The Netherlands Tel 31 0 20 3472121 FAX 31 0 20 6434643 Toll Free in Benelux 0800 0993344 e mail sales omegaeng nl Frystatska 184 733 01 Karvina Czech Republic Tel 420 0 59 6311899 FAX 420 0 59 6311114 Toll Free 0800 1 66342 e mail info omegashop cz 11 rue Jacques Cartier 78280 Guyancourt France Tel 33 0 1 61 37 2900 FAX 33 0 1 30 57 5427 Toll Free in France 0800 466 342 e mail sales omega fr Daimlerstrasse
9. able the resistor The jumper can be stored outside of the unit or re installed only on one pin so that the circuit remains open o e J8 HART JUMPER Remove Jumper LCD to Enable HART 250 Ohm Resistor PCL120 MAIN PCB Figure 2 Note When the 250 ohm resistor is enabled the load driving capability is reduced from 1200 ohms to 950 ohms In most cases this should not be a problem when calibrating Non HART compatible products 4 Basic Operating Modes The PCL120 offers 4 modes of milliamp operation and one voltage measure mode The following text and figures explain the various operating modes A Milliamp Source Figure 3 shows a typical application where the PCL120 is sourcing 4 to 20 mA into a device under test 4 20 mA INPUT DEVICE 4 to 20mA RECORDER INDICATOR 3 SCADA SYSTEM ETC EOMEGA PCL120 SOURCE 20 000 100 00 Max Load 1200 ohms without Hart O wove uro rm 950 ohms with Hart lt gt Figure 3 Sourcing 4 to 20 mA 1 Turn on the PCL120 It will default to the mA source mode 2 Connect the device to be calibrated Warning The loop must be closed for the PCL120 to source current If an open loop occurs OL will flash on the LCD indicating an overload or open condition 3 The output can be adjusted to the desired value by using the knob
10. he same 0 015 of reading accuracy A digital knob user interface combined with decade output control allows the user to make both large or small output changes with ease Several unique functions such as the auto step ramp modes allow the PCL120 to test valve actuators for smoothness and proper operation The PCL120 can also power two wire transmitters while simultaneously reading the resultant loop current All readings are displayed in both milliamps and of span 1 1 Customer Service Omega Engineering One Omega Drive Box 4047 Stamford CT 06907 0047 Tel 203 359 1660 Fax 203 359 7811 www omega com email cservice omega com 1 2 Unpacking Remove the packing list and verify that all equipment has been received If there are any questions about the shipment please call Omega at 1 800 826 6342 When the shipment is received inspect the container and equipment for any signs of damage Note any evidence of rough handling in transit Immediately report any damage to the shipping agent NOTE The carrier will not honor any claims unless all shipping material is saved for their examination After examining and removing contents save packing material and carton in the event reshipment is necessary 1 3 Safety information Symbols Used The following table lists the International Electrical Symbols Some or all of these symbols may be used on the instrument or in this manual 1 Symbol Description Hae y IN O
11. hermistor KY Calibrators z Ice Point References lA Recorders Controllers amp Process Monitors A Infrared Pyrometers PRESSURE STRAIN AND FORCE A Transducers amp Strain Gages LF Load Cells amp Pressure Gages KY Displacement Transducers KY Instrumentation amp Accessories FLOW LEVEL 4 Rotameters Gas Mass Flowmeters amp Flow Computers KY Air Velocity Indicators KY Turbine Paddlewheel Systems A Totalizers amp Batch Controllers pH CONDUCTIVITY MH pH Electrodes Testers amp Accessories 4 Benchtop Laboratory Meters KY Controllers Calibrators Simulators amp Pumps A Industrial pH amp Conductivity Equipment DATA ACQUISITION 4 Data Acquisition amp Engineering Software 4 Communications Based Acquisition Systems IH Plug in Cards for Apple IBM amp Compatibles KY Datalogging Systems lA Recorders Printers amp Plotters HEATERS LY Heating Cable IH Cartridge amp Strip Heaters 4 Immersion amp Band Heaters IH Flexible Heaters 4 Laboratory Heaters ENVIRON MENTAL MONITORING AND CONTROL KY Metering amp Control Instrumentation lA Refractometers 4 Pumps amp Tubing lA Air Soil amp Water Monitors lA Industrial Water amp Wastewater Treatment KY pH Conductivity amp Dissolved Oxygen Instruments M4289 0206
12. lication the PCL120 will supply 24 volts to the loop while simultaneously measuring the resultant loop current LOOP PWR To turn on the loop power supply press the mA measure mode key while in the 4 20 mA 4 to 20mA OUTPUT DEVICE a EOMEGA PCL120 TEASURE 4000 7 0 00_ Max Input 24mA Note To measure the output of a 2 wire nove Bo transmitter use the Loop Power option Coa a aa See instructions for more details lt gt Figure 5 Measuring 4to 20 mA NOTE The loop power mode can only be enabled while in the mA measure mode E Voltage Measure Figure 6 shows how to connect the PCL120 to measure DC voltage up to MODE 28 volts To activate the volts measure function simply press the key to toggle through the functions until the volts measure mode is reached The input impedance of the PCL120 1 meg ohm while in this mode VOLTAGE OUTPUT DEVICE EOMEGA PCL120 MEASURE 24 000 Max Input 28VDC Figure 6 Measuring 0 to 28 VDC 5 Advanced Operating Modes A Auto Step Ramp Mode The PCL120 has the ability to step the mA output in 25 steps automatically in 5 second intervals It can also ramp the mA output from 4 mA to 20 mA then back to 4 mA in a linear fashion automatically
13. ready for use A 9 volt alkaline battery comes pre installed The Battery Save feature is enabled and set to 30 minutes in case the unit is accidentally turned on in transit The battery save feature will turn off the PCL120 automatically if no keys are pressed after 30 minutes To change the length of time on the battery save feature or to disable it completely perform the following steps during power up 1 Turn off the PCL120 2 Hold the AUTO key down firmly 3 Turn on the PCL120 AUTO 4 After power up wait about 1 second and release the key 5 The display will now indicate the amount of time the battery save feature is set for off to 30 minutes 4 6 Using the knob set the desired time off to 30 minutes AUTO 7 Press again to store the value and return the unit to normal mode The stored value will remain in memory until changed by the operator B HART Resistor Setup The PCL120 incorporates an internal 250 ohm resistor to facilitate using a Rosemount 275 Communicator during calibration or installation of HART transmitters The internal resistor takes the place of the 250 ohm resistor normally installed during the use of the model 275 Communicator An internal jumper can be removed to enable this feature if desired The unit is shipped with the jumper in place To remove the jumper open the case and refer to Figure 2 to locate the jumper then pull off the jumper to en
14. rn to normal C Min Max Datalogging When the PCL120 is in any of the measure modes mA mA w loop power or voltage it will continuously monitor and store the minimum and maximum values for that particular input mode To operate the datalogging feature use the following procedure 1 Place the PCL120 in one of the measure modes 2 Connect the PCL120 to the unit under test 3 Clear the min max memory by pressing both keys min and max simultaneously The LCD will display CLR when the memory is cleared 4 Allow the unit to log min and max for as long as required Warning You may want to disable the Battery Save feature before using the Dataloggiong Mode to prevent the PCL120 from turning off prematurely 5 At any time press the min or max to display the value stored 6 Turning off the PCL120 or changing modes will clear the memory Be sure to record your data before turning off the unit 9 6 Maintenance A Battery Selection The PCL120 operates on a standard 9V alkaline battery or an optional rechargeable 9V Ni Cd battery For most applications the 9V alkaline battery will suffice however in heavy use applications the 9V Ni Cd may be a better choice The 9V Ni Cd battery supplied by Omega will offer approximately 3 hours of continuous use at 12 mA output on a full charge the alkaline battery will yield about 12 hours The charger supplied by Omega will provide an overnight charge rate 10 12 hours and will al
15. sible for shipping charges freight insurance and proper packaging to prevent breakage in transit FOR WARRANTY RETURNS please have FOR NON WARRANTY REPAIRS consult the following information available BEFORE OMEGA for current repair charges Have the contacting OMEGA following information available BEFORE 1 Purchase Order number under which contacting OMEGA the product was PURCHASED 1 Purchase Order number to cover the 2 Model and serial number of the product COST of the repair under warranty and 2 Model and serial number of the 3 Repair instructions and or specific product and problems relative to the product 3 Repair instructions and or specific problems relative to 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 2004 OMEGA ENGINEERING INC All rights 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 Where Do I Find Everything I Need for Process Measurement and Control OMEGA Of Course Shop online at www omega com TEM PERATURE KY Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies 4 Wire Thermocouple RTD amp T
16. so power the PCL120 for bench use while maintaining a float charge on the Ni Cd battery Warning Never connect the AC adapter charger with the 9V alkaline battery installed To order the 9V Ni Cd battery or AC adapter charger contact Omega Engineering at 800 826 6342 B Input Protection The PCL120 incorporates a fuseless input protection and will tolerate most misconnections up to 250 VAC or 250 VDC for up to 30 seconds duration Because of this protection no maintenance is required C Calibration The PCL120 is designed to hold its rated accuracy for a minimum of one 1 year Itis therefore recommend that an annual re calibration be done to ensure operation within specification Contact Omega s Customer Service Department for re calibration information at 1 800 826 6342 or www omega com 10 7 Specifications Input Range 0 000 to 24 000 25 00 to 125 00 Output Range Source Simulate 0 000 to 24 000 25 00 to 125 00 Read VDC 0 to 30 VDC Accuracy 0 015 of reading 2 counts Resolution 001 mA 001 volts Loop Supply Voltage 24 VDC Typical Drive Capability 12009 w o Hart 95092 w Hart Auto Error Function Yes Selectable Decade Adjustment Yes Auto Step Ramp Yes Preset Outputs 5 Loop Power Measure Yes Capability Operating Temperature 10 to 55 C Power Supply 1 9V Battery Rechargeable Battery Option Yes AC Adapter
17. uthorized 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 action 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 vibra tion improper specification misapplication misuse or other operating conditions outside of OMEGA s control Components which wear are not warranted including but not limited to contact points fuses and triacs OMEGA is pleased 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 LIMITA
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