Omega M-4292/1006 User's Manual
Contents
1. S VALVE e uem Figure 5 Use the ZERO key to zero the pressure sensor when vented to atmospheric pressure Important NOTE To ensure accuracy of the calibrator it is critical to zero the calibrator before a device is calibrated 3 1 Media Compatibility The calibrator utilizes a media isolated sensor to prevent sensor contamination Whenever possible clean dry air is the media of choice If that is not always possible make sure that the media is compatible with Nickel Plated Brass Silicon RTV glass and ceramic materials 3 2 Measuring Pressure with External Modules The calibrator provides a digital interface to External Pressure Modules These modules are available in various ranges and types 12 including gauge vacuum differential and absolute The modules work seamlessly with the calibrator Simply plug them into the interface and select EXT external sensor Since the interface between the calibrator and the module is digital all the accuracy and display resolution is derived from the module Model BPPA VALVE Pressure Module zt Adapter PRESSURE MODULE Figure 6 4 Measuring Current To measure current use the input terminals in the front of the calibrator Select the mA function on one of the displays Curr2. IER REA 36 11 2 Cleaning the sy LEE saq aka aa 36 11 3 Service Center Calibration or Repair 36 1 Introduction The OMEGA PCL340 Series is designed to be a simple to use yet very versatile pressure calibrator Its internal pressure sensor combined with inputs for mA voltage and switch contacts allow the PCL340 Series to calibrate a variety of pressure devices An external pressure module option allows an even wider range of pressure calibration options including absolute and differential 1 1 Customer Service Omega Engineering One Omega Drive Box 4047 Stamford CT 06907 0047 Tel 203 359 1660 Fax 203 359 7900 www omega com email info omega com 1 2 Standard Equipment Check to see if your calibrator is complete It should include PCL340 Series Calibrator instruction manual test leads carrying case calibration certificate with data 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 Symbol Description N AC Alternating Current AC DC Battery rN MA CE Complies with European Union Directives DC Symbol Description Double Insulated Electric Shock Fuse PE Ground Hot Surface Burn Hazard Read the User s Manual Important Information Off O gt gt i enl On The following defin
3. Shop online at omega com fEOMEGXA omega com e mail info omega For latest product manuals omegamanual info M 4292 1006 PCL340 Series omega com CEOMEGA OMEGAnet 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 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 Fr
4. 4 Serial Interface This is used to interface to optional external modules or optional serial control Figure 2 shows the location of the keys Table 2 describes the function of each key OMEGA PCL340 P1 psi 0 000 25 0076 0 000 mA CONF UPPER MORE 1 OOG Figure 2 Keypad Table 2 Key Functions No Name Description 1 Function Keys These keys are used in various ways primarily to configure the calibrator 2 ON OFF Key This key is used to turn the calibrator on and off 3 ZERO Key This key is used to zero pressure measurements 4 Backlight Key This key is used to turn the backlight on and off 2 1 Calibrator Display The Calibrator Display consists of two regions The menu bar located along the bottom of the screen is used to access a menu system The main display the rest consists of up to three process measurement sub regions These sub regions will henceforth be referred to as the UPPER MIDDLE and LOWER displays Figure 3 shows the location of the different display fields while table 3 describes them psi AS mA EE 0 000 0 000 psi No CONFIG UPPER MORE 5 Figure 3 Display Table 3 Display Functions Name Description Primary Parameters Indicates what is being measured Span Indicator Indicates the percent of the 4 to 20 mA span For mA and mA Loop functions only
5. 100 Select Menu PaE Menu J DONE SET Y N Back t Display Main Menu MOM ewe eit ie a DISPLAY NEXT DONE San MATT a Menu SAVE RECALL DONE _ RECALL pis poser 4 y i a oes SN y RCLSETUP suse DT Y 0 Select Menu J Auto Off Adjust Menu AUTO OFF DONE T AT 4 Back to Error Main Menu Display Select Menu ON OFF LOWER DONE Y Damp Main Menu DAMP NEXT DONE Damp Select Menu ON OFF DONE Figure 4 Menu Map 2 2 Using the Backlight The backlight is controlled by the dedicated backlight key It toggles on and off when the key is pressed this is one of the few functions that cannot be controlled by the serial interface 2 3 Using the Zero Function When the ZERO_KEY is pressed the calibrator will zero the current display if a pressure mode is selected and the pressure is within the zero limit 2 3 1 Internal Sensor and Pressure Module non absolute When a sensor or module is selected on the current display and the ZERO KEY is pressed the calibrator subtracts the current reading from the output 2 3 2 Absolute Pressure Module When an absolute pressure module is selected on the current display and the ZERO_KEY is pressed the calibrator prompts the user to enter the barometric reference pressure This is done using the arrow keys F2 and F3 Keys PRESSURE REFERENCE 14 469 SETREFDONE 2 4 Other Menu Controlled Functions There are eight sub
6. 9 2 3 Using the Zero Function cee 9 2 4 Other Menu Controlled Functions 9 3 Measuring Pressure ee 12 3 1 Media Compatibility 4 12 3 2 Measuring Pressure with External Modules 12 4 Measuring Current 13 5 Measuring Voltage 0 eee 14 6 Performing a Pressure Switch Test 15 7 Calibrating Transmitters 0 2 2 wasan wa eu ee 17 7 1 Using the mA Input Function 17 7 2 Calibrating a Pressure to Current Transmitter 18 7 3 Percent Error Function cece eee 18 8 Factory Setups wares Less gate mille Sate a 21 9 Remote Operation 23 9 1 Remote Interface J s a sasana ees 23 9 2 Setting up the RS 232 Port for Remote Control 23 9 3 Changing Between Remote and Local Operation 24 9 4 Using Commands 24 9 5 Remote Commands and Error Codes 27 9 6 Entering Commands ssssss eee 29 10 Specifications ess 2 bv e Rer Ree ho eer ee E A 5 35 11 i e Del cR ex a ege x o RR ER EE E qs 36 11 1 Replacing Batteries edere
7. Local Operation There are three modes of operation of the calibrator Local Remote and Remote with Lockout Local mode is the default mode Commands may be entered using the keypad on the calibrator or using a computer In Remote mode the keypad is disabled and commands may only be entered using a computer but choosing GO TO LOCAL from the menu on the calibrator display will restore keypad operation In Remote with Lockout the keypad can not be used at all To switch modes proceed as follows l To enable Remote mode type in the serial command REMOTE atthe computer terminal 2 To enable Remote with Lockout type in REMOTE LOCKOUT in either order 3 To switch back to local operation enter LOCAL at the terminal This command also turns off LOCKOUT if it was on For more information on commands refer to the Remote Commands section 9 4 Using Commands 9 4 1 Command types Refer to the Section 10 5 on Remote Commands for all available commands The calibrator may be controlled using commands and queries All commands may be entered using upper or lower case The commands are divided into the following categories Calibrator Commands Only the calibrator uses these commands For example VAL asks for the values displayed on the calibrator display Common Commands Standard commands used by most devices These commands always begin with an For example IDN tells the calibrator to return its identificat
8. Section 1 1 of this manual With this connection the user can write programs on a PC with Windows languages like Visual Basic to operate the calibrator or use a Windows terminal such as Hyper Terminal to enter single commands Typical RS 232 remote configurations are shown in Figure 13 COM PORT CESSES EA NB Figure 13 Calibrator to Computer Connection 9 2 Setting up the RS 232 Port for Remote Control Note The RS 232 connection cable should not exceed 15m unless the load capacitance measured at connection points is less than 2500pF Serial parameter values 9600 baud 8 data bits 1 stop bit no parity Xon Xoff EOL End of Line character or CR Carriage Return or both 23 To set up remote operation of the calibrator on the Windows Hyper Terminal connected to a COM porton the PC as in Figure 23 use the following procedure 1 Start Hyper Terminal located in Accessories Communications of the Windows Start menu 2 Select New Connection 3 For Name enter PCL340 Select the serial port that the calibrator is connected to Enter the above information for port settings Select ASCII setup from File Properties Settings and mark these choices Echo typed characters locally Wrap lines that exceed terminal width 6 Select Ok 7 see if the port works enter IDN This command will return information on the calibrator 9 3 Changing Between Remote and
9. main menus that can be accessed through the MORE option of the Main Menu A sub main menu contains three options The first option is unique to the function The second and third options of a sub main menu are always the same The NEXT option leads to the next sub main menu and the DONE option returns home For the last sub main menu the NEXT option wraps around to home See Figure 4 for a detailed mapping of the menu structure A note on naming convention If a sub main menu has subordinate menus it will henceforth be referred to as function Main Menu E g the display contrast sub main menu will be called the Contrast Main Menu If not it will be called the function menu 10 2 4 1 Setting the Contrast From the Contrast Main Menu choose the CONTRAST option to access the Contrast Adjustment Menu CONTRAST NEXT DONE Use the arrow keys to adjust the display contrast to the desired level and then use the CONTRAST DONE option to return home CONTRAST 4 4 2 4 2 Locking and Unlocking Configurations Use the LOCK CFG or UNLOCK CFG option of the Configuration Lock Menu to lock or unlock the display configuration LOCK CFG NEXT DONE When the LOCK CFG option is chosen the menu display returns home and the CONFIG option on the Main Menu indicates that it is locked Also all menus are locked out with the exception of the Contrast Adjustment menus and the Confi
10. still use the keypad to get back to local unless the command LOCKOUT was entered before REMOTE Than the keypad is totally locked out and the user has to send the LOCAL command to get back to local operation ST_START Starts a switch test ST CLOSE Returns the pressure that the switch closed at in the current pressure units ST_OPEN Returns the pressure that the switch opened at in the current pressure units ST_DEAD Returns deadband of the switch in the current pressure units VAL Returns the value of any measurement taking place on the upper and lower display For example if the upper display is measuring 5mA and the lower display is measuring 10V then VAL will return 5 000000E 03 A 1 000000E 01 V ZERO_MEAS Zeroes the attached pressure module Enter the zeroing value in PSI after the command when zeroing an absolute pressure module ZERO_MEAS Returns the zero offset or the reference value for absolute pressure modules 10 Specifications 18 lt to 28 unless otherwise noted General Instrument Setup Recall 5 last used on power up Environmental Operating Temperature Storage Temperature 10 C to 50 C 20 C to 60 C Power Requirements 6 0 VDC Battery Four 4 standard AA cells Battery Life gt 25 hours typical usage Physical Dimensions 8 3 H x 3 9 W x 1 8 D 21 082 x 9 906 x 4 572 cm Weight 1 Ib 4 oz 0 567 kg Connectors Ports Pressur
11. the 4 20 mA output from the device being calibrated This can be done in one of two ways 1 Passively Where the device under test directly generates 4 20 mA and can be read by the calibrator 2 Actively Where the calibrator supplies 24 VDC loop power to the device under test to power the device while reading the resulting 4 20 mA signal P1 mA psi 30 000 100 0076 20 000 mA CONFIG LOWER MORE P1 psi 30 000 mA LOOP 100 00 20 000 mA CONFIG LOWER MORE 17 18 7 2 Calibrating a Pressure to Current Trans mitter To calibrate pressure to current transmitter P I perform the following steps 1 Connect the calibrator and the pump to the transmitter 2 Apply pressure with the pump 3 Measure the current output of the transmitter 4 Ensure the reading is correct If not adjust the transmitter as necessary OMEGA PCL340 P1 psi 30 000 mA 100 00 20 000 mA CONFIG LOWER MORE Figure 11 7 3 Percent Error Function The calibrator features a unique function which can calculate pressure vs milliamp error as a percentage ofthe 4 to 20 mA loop span The percent error mode uses all 3 screens and has a unique menu structure It simultaneously displays pressure mA and percen
12. 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 OM EGA 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 pro vided 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 EXCEPTTHAT OFTITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DIS CLAIMED LIMITATION OF LIABILITY The remedies of purchaser set forth herein are exclu sive 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 pur chase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or sp
13. Pressure Units Indicates one of 17 pressure units available for display Units Indicates the unit of measure for the display 2 1 1 Main Menu Functionality There are three options on the Main Menu CONFIG current display and MORE The Main Menu is home for the menu display CONFIG LOWER MORE 2 1 1 1 Setting the Current Display The current display is indicated by the center option on the Main Menu pressing the F2 key will toggle the current display 2 1 1 2 Setting Current Display Parameters To set the parameters of the current display use the CONFIG option to get to the Display Configuration Menu SELECT NEXT DONE Here the SELECT option will toggle through the choices for each parameter The first parameter is MODE Since voltage current and Switch test modes all use the same jacks two of these functions cannot be used concurrently The ability to select certain functions is limited based on what is already selected in another active display The NEXT option is used to change to the second parameter Only Pressure modes have a second parameter Pressures can be read in 13 engineering units With a single display the following modes are available P 1 Pressure on left side sensor EXT Pressure with external pressure module P 1 ST Switch Test with left side sensor EXT ST Switch Test with external pressure module mA Milliamps measure without loop power mA LOOP Milli
14. URCHASED 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 Find Everything Need for Process Measurement and Control OMEGA Of Course Shop online at www omega com TEMPERATURE 4 Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies 4 Wire Thermocouple RTD amp Thermistor A Calibrators amp Ice Point References A Recorders Controllers amp Process Monitors A Infrared Pyrometers PRESSURE STRAIN AND FORCE 4 Transducers amp Strain Gages Load Cells amp Pressure Gages A Displacement Transducers A Instrumentation amp Accessories FLOW LEVEL Rotameters Gas Mass Flowmeters amp Flow Computers A Air Velocity Indica
15. amps measure with loop power VOLTS Voltage Measure The following table shows which functions are available concurrently An X in a column indicates that the mode in the current display will not be available for selection if the mode in that row is in use in any other active display Table 4 Mode Concurrency OTHER DISPLAYS CURRENT DISPLAY P 1 EXT P 1 EXT mA mA Volts ST ST Loop P 1 EXT P 1 ST X X X X X EXT ST X X X X X mA X X X X mA Loop X X X X Volts X X X X 2 1 1 3 Accessing Other Menus Use the MORE option on the Main Menu to access the other menu functions Main Menu CONFIG DISPLAY MORE Parameter Selection Error Main Menu SELECT NEXT DONE ERROR NEXT DONE Back to Back to Main Menu Main Menu Contrast_Main Menu CONTRASTI NEXT DONE Contrast Adjust Menu Back to CONTRAST DONE 4 Main Menu Lock Config Menu LOCK CONFIGI NEXT DONE Back to Main Menu No Setups Main Menu SETUPS NEXT DONE Error Main Menu CONFIG Pressure Port Select Menu SELECT NEXT DONE Loop Power Select Menu ON OFF NEXT Unit Select Menu SELECT NEXT DONE Auto Off Main Menu UM AUTO OFF NEXT DONE
16. ance 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 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 1 Introduction eee x ee GE 1 1 1 Contacting OMEGA 1 ee 1 1 2 Standard Equipment ee 1 1 3 Safety Information 0 ee 1 2 Calibrator Interface 2 2 2 4 04 sede dad hoa a or Ode eee dasa 4 2 1 Calibrator Display 1 ud ded reda ee dur deii d enone von en rede tas 5 2 2 Using the Backlight
17. ay P1 on the middle and the lower display is off FUNC Would return ST_P1 P1 NONE HI ERR Sets the 10096 point for the percent error mode calculation in the current engineering units For example To set the 10096 point to 100 psi send HI ERR 100 HI ERR Retums the 10096 point for the percent error mode calculation For example If the 100 point is set to 100 psi ERR would return 1 000000E 02 PSI LOCAL Restores the calibrator to local operation if it was in remote mode Also clears LOCKOUT if the calibrator was in lockout mode LOCKOUT Sending this command sets the lockout state when the unit is in REMOTE or goes to remote it prohibits use of the keypad completely The lockout state can only be cleared by sending the LOCAL command LO ERR Sets the 0 point for the percent error mode calculation in the current engineering units For example To set the 0 point to 20 psi send LO_ERR 20 LO ERR Returns the 096 point for the percent error mode calculation For example If the 096 point is setto 20 psi LO ERR would return 2 000000E 01 PSI PRES UNIT Used to set the pressure unit for the indicated display For example To setthe pressure unit to psi on the lower display send PRES UNIT LOWER PSI 33 34 PRES UNIT Returns the pressure unit used when measuring pressure for each of the 3 displays REMOTE Puts the calibrator in remote mode From the remote mode the user can
18. buffer overflow its error code is sentto the error queue The error code can be read from the queue with the command FAULT The error queue holds 15 error codes When it is empty FAULT returns 0 The error queue is cleared when power is reset or when the clear command CLS is entered Input Buffer Calibrator stores all received data in the input buffer The buffer holds 250 characters The characters are processed on a first in first out basis 9 5 Remote Commands and Error Codes The following tables list all commands and their descriptions that are accepted by the calibrator Table 5 Common Commands Command Description CLS Clear status Clears the error queue IDN Identification query Returns the manufacturer model number and firmware revision level of the Calibrator RST Resets the calibrator to the power up state Table 6 Calibrator Commands Command Description DAMP Turns Damp on or off DAMP Returns if DAMP is on off DISPLAY Turns on off the displays specified in the command DISPLAY Returns which displays are on off FAULT Returns the most recent error code ERROR_LOOP Turns loop power on or off in percent error mode ERROR_LOOP Returns the current state of loop power in error mode ERROR_MODE Turns percent error mode on or off ERROR_MODE Returns whether percent error mode is on or off ERROR_PORT Set the pressure port fo
19. e one 1 8 NPT 2 ports on differential models BetaPort P pressure module Included Accessories Soft case batteries manual NIST traceable certificate and test leads Ranges Available Pressure 1 psi 5 psi 30 psi 100 psi 300 psi mA 0 to 24 000 mA Volts 0 to 30 000 VDC Engineering Units psi bar mbar kPa kgcm2 cmH20 4 C cmH20 Q 20 mH20 Q 4 C MH20 20 C inH20 Q 4 C inH20 20 C inH20 Q9 60 F mmHg 0 C inHg 0 C ftH20 4 C ftH20 Q 20 C ftH20 60 F Accuracy Pressure 5 30 100 300 psi 0 05 F S 1 psi 0 075 F S mA 0 015 of rdg 0 002mA Volts 0 015 of reading 0 002V Temperature Effect No effect on accuracy on all functions from 18 C to 28 C Add 0 005 F S C for temps outside of 18 C to 28 C 35 11 Maintenance 36 11 1 Replacing Batteries Replace batteries as soon as the battery indicator turns on to avoid false measurements If the batteries discharge too deeply the PCL340 will automatically shut down to avoid battery leakage Note Use only AA size alkaline batteries or optional rechargeable battery pack 11 2 Cleaning the Unit Warning To avoid personal injury or damage to the calibrator use only the specified replacement parts and do not allow water into the case Caution To avoid damaging the plastic lens and case do not use solvents or abrasive cleansers Clean the calibrator with a soft cl
20. ecial 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 DISCLAIM ER 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 DEPARTM ENT IN ORDERTO 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 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 OM EGA the product was P
21. ent is measured in mA and percentage of range The range on the calibrator is set to 096 at 4 mA and 10096 at 20 mA For example If the current measured is displayed as 7596 then the mA value is 16 mA 13 Device 4 to 20mA Tost Figure 7 5 Measuring Voltage To measure voltage use the input terminals in the front of the calibrator Select the Volts function on one of the displays The calibrator can measure up to 30V Up to 30V Under Test Figure 8 14 6 Performing a Pressure Switch Test PCL340 P1 ST CLOSE 0 000 Femme TOWER WORE Pressure switch under test A Figure 10 To perform a switch test follow these steps 1 Change the setup to Setup 4 default switch test Setup 4 The upper display is setto P1 ST all other displays are off Important NOTE The pressure Switch Test can be performed with the following functions P 1 ST or EXT ST 2 Connect calibrator to the switch using the pressure switch terminals The polarity of the terminals does not matter Then connect the pump to the calibrator and the pressure switch 3 Make sure the vent on the pump is open Zero the calibrator if necessary Close the vent after zeroing the calibrator 4 The top of the display will read CLOSE P1 ST CLOSE p
22. guration Lock Menu When the UNLOCK CFG option is chosen the configuration is unlocked and the menu display continues to the next sub main menu 2 4 3 Saving and Recalling Setups The calibrator will automatically save the current set up for recall at power up Additionally 5 set ups can be accessed through the SETUPS menu Select the SETUPS option from the Setups Main Menu SETUPS NEXT DONE Choose SAVE to save setup RECALL to recall the set up or DONE to do nothing and return home SAVE RECALL DONE If SAVE or RECALL is selected use the arrow keys to select the set up location Then use the save option to store the current set up into the selected location or the recall option to recall the set up stored in the selected location The display menu will automatically go home SAVE SETUP 1 14 RCL SETUP 1 A 4 2 4 4 Setting AutoShut off Parameters The calibrator can be setto automatically shut off after a selected number of minutes this function can also be disabled To set the auto shut off parameters select the AUTO OFF option on the Auto Shut Off Main Menu AUTO OFF NEXT DONE Use the arrow keys to select the number of minutes before the calibrator turns off or disable auto shutoff by scrolling all the way down AUTO SHUTDOWN ON AUTO OFF DONE 4 Use the AUTO OFF DONE option to set the parameters and return home The auto shu
23. ion Query Commands Commands that ask for information they always end with a For example FUNC Returns the current modes of the calibrator displays Compound Commands Commands that contain more than one command on one line For example PRES UNIT LOWER PSI PRES UNIT Sets the pressure units to PSI and queries itto verify It will return PSI PSI PSI 9 4 2 Character Processing The data entered into the calibrator is processed as follows ASCII characters are discarded if their decimal equivalent is less than 32 space except 10 LF and 13 CR Data is taken as 7 bit ASCII The most significant data bit is ignored Upper or lower case is acceptable 9 4 3 Response Data Types The data returned by the calibrator can be divided into four types 25 26 Integer For most computers and controllers they are decimal numbers ranging from 32768 to 32768 For example FAULT could return 110 Refer to the Error Codes table Table 8 for more information on error codes Floating Floating numbers have up to 15 significant figures and exponents For example ZERO MEAS returns 1 210000E 2 PSI Character Response Data CRD Data returned as keywords For example PRES UNIT retums PSI NONE NONE Indefinite ASCII IAD Any ASCII characters followed by a terminator For example IDN returns BETA 301 250 1 00 9 4 4 Calibrator Status Error Queue If an error occurs due to invalid input or
24. itions apply to the terms Warning and Caution e 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 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 Never touch the probe to a voltage source when the test leads are plugged into the current terminals 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 Check test leads continuity Replace damaged test leads before you use the calibrator When using the probes keep your fingers away from the probe contacts Keep your fingers behind the finger guards on the probes Connect the common test lead before you connect the live test lead When you disconnect
25. o For example if a value for current output is entered that is bigger than the supported range 0 24mA FAULT Would return 103 which is the code number for an entry over range Refer to the Error Codes table for more information on error code numbers ERROR LOOP Turns loop power on or off in percent error mode For example To set loop power on send ERROR LOOP ERROR LOOP Returns the current state of loop power in percent error mode For example If you send ERROR It will return ON if loop power is on in error mode ERROR MODE Turns percent error mode on and off For example To turn on percent error mode send ERROR MODE ON ERROR MODE Returns the current state of percent error mode For example If you send ERROR MODE It will return ON if the calibrator is in percent error mode ERROR PORT Sets the pressure port for percent error For example To set the pressure port for percent error to P1 send ERROR PORT P1 ERROR PORT Returns the current pressure port for percent error mode For example If you send ERROR PORT it will return P1 if the pressure port in percent error is P1 3l 32 FUNC Sets the display indicated in argument one to the function indicated in argument 2 For example To set the lower display to P1 Pressure mode send FUNC LOWER P1 FUNC Returns the current mode of all displays For example if the calibrator is set to P1 ST on the upper displ
26. oth dampened with water or water and mild soap 11 3 Service Center Calibration or Repair Only qualified service personnel should perform calibration repairs or servicing not covered in this manual If the calibrator fails check the batteries first and replace them if needed Verify that the calibrator is being operated as explained in this manual If the calibrator is faulty call Omega s customer service department for an AR number to return the unit Be sure to pack the calibrator securely using the original shipping container if it is available 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 OM EGA s customers receive maximum coverage on each product If the unit malfunctions it must be returned to the factory for evaluation OM EGA s Customer Service Department will issue an Authorized Return AR number immediately upon phone or writ ten 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
27. pace required between the command and parameter all other spaces are optional Almost all commands for the calibrator are sequential any overlapped commands will be indicated as such This section will briefly explain each of the commands and describe their general use which will include any parameters that may be entered with the command as well as what the output of the command is 9 6 1 Common Commands CLS Clears the error queue Also terminates all pending operations When writing programs use before each procedure to avoid buffer overflow DN Retums the manufacturer model number and firmware revision of the Calibrator For example DN will return BETA 301 0 1 00 29 30 9 6 2 Calibrator Commands DAMP Turns the dampening function on or off For example If you send DAMP ON this will turn the dampening function on DAMP Returns the current state of the dampening function For example If you send DAMP It will return ON if the dampening function is on DISPLAY Turns the indicated display on or off For example If you send DISPLAY LOWER ON this will turn the lower display on DISPLAY Returns the current state of the each of the displays For example If you send DISPLAY It will return ON ON ON if the all the displays are on FAULT Returns the error code number of an error that has occurred The command may be entered when the previous command did not do what it was meant to d
28. psi 0 000 DONE SET T 4 Note The 0 and 100 point will be saved in non volatile memory until they are changed again by the user for the internal sensors and external pressure modules When using an external module the 0 and 100 are setto low and full scale of the module until the user changes it or if it was previously saved 8 Factory Setups The Calibrator is loaded with five factory setups These setups are shown below P1 mA psi 30 000 100 00 20 000 mA CONFIG UPPER MORE Setup 1 The upper display is set to P1 mode and the middle is set to mA lower is off EXT mA CONFIG psi 0 000 100 00 20 000 LOWER MORE Setup 2 The upper display is set to EXT mode and the middle is set to mA lower is off 21 Setup 3 The upper display is set to P1 mode and the middle is set to VOLTS mode lower is off Setup 4 The upper display is set to P1 the lower display is set to EXT Setup 5 The upper display is set to P1 and the lower display is set to mA Loop 22 9 Remote Operation 9 1 Remote Interface The calibrator can be remotely controlled using a PC terminal or by a computer program running the calibrator in an automated system It uses an RS 232 serial port connection for remote operation NOTE To use the remote control option a custom RS 232 cable must be purchased from OMEGA LEM232 To contact OMEGA refer to
29. r percent error mode ERROR_PORT Returns the pressure port for percent error mode FUNC Sets the display mode as specified in the command FUNC Returns the current mode of the upper middle and lower display HI ERR Sets the 10096 of span limit for percent error mode HI ERR Returns the 10096 of span limit for percent error mode LOCAL Returns user to manual operation of the calibrator LOCKOUT Locks out the keypad of the calibrator in remote opera tion LO ERR Sets the 096 of span limit for percent error mode LO ERR Returns the 096 of span limit for percent error mode PRES UNIT Set the pressure unit for the indicated display PRES UNIT Returns the pressure from the indicated display REMOTE Puts the calibrator in remote mode 27 ST_START Starts a switch test ST_OPEN Returns pressure value at which the switch opened ST_CLOSE Returns pressure value at which the switch closed ST_DEAD Returns pressure value of the deadband of the switch VAL Returns the measured values ZERO_MEAS Zeros the pressure module ZERO_MEAS Returns the zero offset of the pressure module Table 7 Parameter units Units Meaning MA milliamps of current V Voltage in volts PSI Pressure in pounds per square inch INH204C Pressure in inches of water at 4 C INH2020C Pressure in inches of water at 20 C CMH204C Pressure in centimeters of water at 4 C CMH2020C Pres
30. si 0 000 CONFIG LOWER MORE 15 16 5 Apply pressure with the pump slowly until the switch opens Important NOTE In the switch test mode the display update rate is increased to help capture changing pressure inputs Even with this enhanced sample rate pressurizing the device under test should be done slowly to ensure accurate readings 6 Once the switch is open OPEN will be displayed bleed the pump slowly until the pressure switch closes P1 ST OPEN psi 30 000 CONFIG LOWER MORE 7 top of the display it will now read SW OPENED AT and give you the pressure that the switch opened at SW OPENED AT psi 30 000 NEW TEST NEXT DONE 8 Press the NEXT option to view when the switch closed and the dead band SW CLOSED AT psi 2595 NEW TEST NEXT DONE SW DEADBAND psi 0 405 NEW TEST NEXT DONE 9 Press the NEW TEST option to clear the data and perform another test 10 Press the DONE option to end the test and return to the standard pressure setting Example P1 ST will return to P1 Important NOTE The previous example uses a normally closed switch The basic procedure is still the same for a normally open switch the display will just read OPEN instead of CLOSE 7 Calibrating Transmitters 7 1 Using the mA Input Function The mA input function allows the user to read back
31. sure in centimeters of water at 20 C BAR Pressure in bars MBAR Pressure in millibars KPAL Pressure in kiloPascals INHG Pressure in inches of mercury at 0 C MMHG Pressure in millimeters of mercury at 0 C KG CM2 Pressure in kilograms per square centimeter ON Turn something on OFF Turn something off UPPER Upper Display MIDDLE Middle Display LOWER Lower Display DCI Current measure function DCI LOOP Current measure function with loop power DCV Voltage measure function P1 Port P1 pressure measure function P1 ST Switch Test with port P1 pressure measure function 28 Table 8 Error Codes Error Number Error Description 100 A non numeric entry was received where it should be a numeric entry 101 Too many digits entered 102 Invalid units or parameter value received 103 Entry is above the upper limit of the allowable range 104 Entry is below the lower limit of the allowable range 105 A required command parameter was missing 106 An invalid command parameter was received 107 Pressure not selected 108 Invalid sensor type 109 Pressure module not connected 110 An unknown command was received 111 Bad Parameter received 112 The serial input buffer overflowed 113 Too many entries in the command line 114 The serial output buffer overflowed 9 6 Entering Commands Commands for the calibrator may be entered in upper or lower case There is at least one s
32. t error 9 ERROR CONFIG 509 Figure 12 Example Suppose a pressure transmitter under test is 30 psi 2 Bar Full Scale and outputs a corresponding 4 to 20 mA signal The user can program in a 0 to 30 psi pressure span into the calibrator and the calibrator will calculate and display the deviation or Error from the expected 4 to 20 mA output This eliminates the need for manual calculations and also helps if it becomes difficult to set an exact pressure with an external pump To use the ERROR function proceed as follows 1 With the calibrator turned on and operating press the F3 key to activate the MORE menu option Now press the F1 key to activate the ERROR option 2 Press the 1 key to select the CONFIG option 3 The first option is setting the Port use the select option to scroll through the port choices when finished select the NEXT option 19 4 LOOP POWER can be toggled on off select NEXT when done 5 Use SELECT to toggle through the UNIT options and select NEXT to move on 6 Use the and J arrows to set the 100 point of the desired pressure range select DONE SET when finished 7 Again use the arrows to set 0 point and select DONE SET when finished and the ERROR mode will be ready to use 20 SET 100 BELOW
33. t off time is reset whenever a key is pressed 2 4 5 Activating and Deactivating a Display Use the DISPLAY option on the Display Selection Main Menu to access the Display Activation Menu DISPLAY NEXT DONE The function option can be used to select which display to act upon The ON OFF option turns the selected display on or off The selected display and current on off state are displayed in the lower display MIDDLE ON ON OFF MIDDLE DONE Use the DONE option to save the changes and return home When a display is deactivated its configuration is retained When the display is activated its configuration is checked against the 11 configurations of the other currently active displays if the configurations are in conflict the recalled display s configuration is modified to avoid the conflict If all three displays are deactivated the LOWER display will come on automatically 3 Measuring Pressure To measure pressure connect the calibrator using an appropriate fitting Choose a pressure setting for the display being used The calibrator is equipped with one internal sensor and many optional external Pressure Modules are available Be sure to choose the sensor based on working pressures and accuracy OMEGA PCL340 IP1 psi 25 065 2 psi 0 00 CONFIG LOWER
34. test leads disconnect the live test lead first Do not use the calibrator if it operates abnormally Protection may be impaired When in doubt have the calibrator serviced Do notoperate the calibrator around explosive gas vapor or dust When measuring pressure make sure the process pressure line is shut off and depressurized before you connect it or disconnect it from the pressure module 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 Calibrator Interface Figure 1 shows the location of the process measurement inputs while table 1 describes their use OMEGA PCL340 1 psi 0 000 mA 25 00 0 000 mA CONF UPPER MORE OXO Side View Figure 1 Process Measurement Inputs Table 1 Process Measurement Inputs No Name Description 1 2 Input Terminals These terminals are used to measure current voltage and a contact closure for switch test 3 P1 Pressure Port This is the connection for the internal sensor P1
35. tors 4 Turbine Paddlewheel Systems 4 Totalizers amp Batch Controllers pH CONDUCTIVITY 7 pH Electrodes Testers amp Accessories 4 Benchtop Laboratory Meters 4 Controllers Calibrators Simulators amp Pumps 4 Industrial pH amp Conductivity Equipment DATA ACQUISITION Data Acquisition amp Engineering Software UA Communications Based Acquisition Systems 7 Plug in Cards for Apple IBM amp Compatibles lA Datalogging Systems A Recorders Printers amp Plotters HEATERS 4 Heating Cable Cartridge amp Strip Heaters 4 Immersion amp Band Heaters Flexible Heaters Z Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL 7 Metering amp Control Instrumentation A Refractometers 4 Pumps amp Tubing lA Air Soil amp Water Monitors 4 Industrial Water amp Wastewater Treatment pH Conductivity amp Dissolved Oxygen Instruments 4292 1006
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