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User’s Guide

M-4292/1006

PCL340 Series

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Содержание M-4292/1006

Страница 1: ...omega com e mail info omega com For latest product manuals omegamanual info User sGuide M 4292 1006 PCL340 Series Shop online at ...

Страница 2: ... 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 Germany Austria 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 United Kingdom One Omega Drive River Bend Technology Centre ISO 9002 Certified Northbank Irlam Manchester M44 5BD United...

Страница 3: ...6 Performing a Pressure Switch Test 15 7 Calibrating Transmitters 17 7 1 Using the mA Input Function 17 7 2 Calibrating a Pressure to Current Transmitter 18 7 3 Percent Error Function 18 8 Factory Setups 21 9 Remote Operation 23 9 1 Remote Interface 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 a...

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Страница 5: ...ervice 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 Inte...

Страница 6: ...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 cali...

Страница 7: ... test lead first 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 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 a...

Страница 8: ...o 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 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 4 Side View ...

Страница 9: ...cklight 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...

Страница 10: ...isplay 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 Here the SELECT option will toggle through the choices for each parameter The first parameter is MODE Since voltage current and switch test...

Страница 11: ...er 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 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...

Страница 12: ...8 Figure 4 Menu Map ...

Страница 13: ...isplay 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 2 4 Other Menu Controlled Functions There are eight sub 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 o...

Страница 14: ...f the Contrast Adjustment menus and the Configuration 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 ...

Страница 15: ...to set the parameters and return home The auto shut 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 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 s...

Страница 16: ...e sensor based on working pressures and accuracy 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 th...

Страница 17: ...e is digital all the accuracy and display resolution is derived from the 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 Current is measured in mA and percentage of range The range on the calibrator is set to 0 at 4 mA and 100 at 20 mA For example If the current measured is displayed as 75 t...

Страница 18: ...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 Figure 8 14 ...

Страница 19: ...ch Test can be performed with the following functions P1 ST or EXT ST 2 Connect the 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 wi...

Страница 20: ...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 7 At the top of the display it will now read SW OPENED AT and give you the pressure that the switch opened at 8 Press the NEXT option to view when the switch closed and the dead band 16 ...

Страница 21: ...ly 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 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 suppl...

Страница 22: ... Measure the current output of the transmitter 4 Ensure the reading is correct If not adjust the transmitter as necessary Figure 11 7 3 Percent Error Function The calibrator features a unique function which can calculate pressure vs milliamp error as a percentage of the 4 to 20 mA loop span The percent error mode uses all 3 screens and has a unique menu structure It simultaneously displays pressur...

Страница 23: ...tput 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 F1 key to select the CONFIG option 3 The first option is ...

Страница 24: ...to toggle through the UNIT options and select NEXT to move on 6 Use the and 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 ...

Страница 25: ...odule the 0 and 100 are set to 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 Setup 1 The upper display is set to P1 mode and the middle is set to mA lower is off Setup 2 The upper display is set to EXT mode and the middle is set to mA lower is off ...

Страница 26: ...isplay 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 ...

Страница 27: ...ection 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 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 ...

Страница 28: ...e 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 keyp...

Страница 29: ...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 it to verify It will return PSI PSI PSI 9 4 2 Character Processing The data entered into the calibrator is processed as follows ASCI...

Страница 30: ...efinite 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 buffer overflow its error code is sent to 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 cle...

Страница 31: ...he 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 for 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...

Страница 32: ... of water at 4 C INH2O20C Pressure in inches of water at 20 C CMH2O4C Pressure in centimeters of water at 4 C CMH2O20C Pressure 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 OF...

Страница 33: ...d 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 space 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 d...

Страница 34: ...ll 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 do For example if a value for current output is entered that is bigger ...

Страница 35: ...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 po...

Страница 36: ... mode calculation in the current engineering units For example To set the 100 point to 100 psi send HI_ERR 100 HI_ERR Returns the 100 point for the percent error mode calculation For example If the 100 point is set to 100 psi HI_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 LOCKO...

Страница 37: ...o 20 psi send LO_ERR 20 LO_ERR Returns the 0 point for the percent error mode calculation For example If the 0 point is set to 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 set the pressure unit to psi on the lower display send PRES_UNIT LOWER PSI 33 ...

Страница 38: ...tch 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 00000...

Страница 39: ...rential 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 cmH2O 4 C cmH2O 20 C mH2O 4 C mH2O 20 C inH2O 4 C inH2O 20 C inH2O 60 F mmHg 0 C inHg 0 C ftH2O 4 C ftH2O 20 C ftH2O 60 F Accu...

Страница 40: ...tion To avoid damaging the plastic lens and case do not use solvents or abrasive cleansers Clean the calibrator with a soft cloth 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 ...

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Страница 43: ...se 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 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 Shoul...

Страница 44: ...lewheel Systems M U Totalizers Batch Controllers pH CONDUCTIVITY M U pH Electrodes Testers Accessories M U Benchtop Laboratory Meters M U Controllers Calibrators Simulators Pumps M U Industrial pH Conductivity Equipment DATA ACQUISITION M U Data Acquisition Engineering Software M U Communications Based Acquisition Systems M U Plug in Cards for Apple IBM Compatibles M U Datalogging Systems M U Reco...

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