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DPC300A

 

Reference Manual

Summary of Contents for DPC300A

Page 1: ...DPC300A Reference Manual...

Page 2: ...asuring pressure with external modules 16 4 3 Measuring and sourcing current 4 20 mA 16 4 4 Measuring voltage 17 4 6 Calibrating transmitters 20 5 Minimum and Maximum Storage Capability 25 6 Remote Op...

Page 3: ...nerate 4 to 20mA signals and a full time 24 volt loop power supply is always available utilizing dedicated jacks on the front panel Additional pressure ranges can also be supported through the use of...

Page 4: ...ese symbols may be used on the instrument or in this manual Symbol Description AC Alternating Current AC DC Battery CE Complies with European Union Directives DC Double Insulated Electric Shock Fuse P...

Page 5: ...roper 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...

Page 6: ...ngs which could lead to possible electric shock or personal injury replace the battery as soon as the battery indicator appears Caution To avoid possible damage to calibrator or to equipment under tes...

Page 7: ...REGULATOR MAX 120 PSI AIR SUPPLY 0 100 PSI OUTPUT 12 300 PSI PUMP 12 300 PSI MEASURE FINE ADJUST VENT PUMP SELECTOR MAIN SELECTOR WARNING VENT BEFORE SELECTION HOME PUMP ZERO J1 J2 J3 COM VOLTS mA SWI...

Page 8: ...Key Return to main menu screen 6 Pump Key Push to run pump Electric pump version Note When the calibrator is turned on by pressing the ON OFF key it will go through a short startup self check routine...

Page 9: ...Pressure units Indication of the pressure unit selectable from 13 pressure units 2 Span Indicator Indicates the percent of the 4 to 20 mA span For mA and mA Loop functions only 3 Primary parameter Ind...

Page 10: ...to select certain functions is limited based on what is already selected in another display The NEXT option is used to change to the second parameter Only Pressure modes have a second parameter Press...

Page 11: ...he active display if a pressure mode is selected and the pressure is within the zero limit The zero limits are within 10 of the full scale range of the selected sensor If the display indicates OL the...

Page 12: ...vention 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...

Page 13: ...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 t...

Page 14: ...12 Figure 4 Menu Map 12...

Page 15: ...ameters select the AUTO OFF option on the Auto Shut Off Main Menu Use the F2 F3 keys to select the number of minutes before the calibrator turns off or disable auto shut off by scrolling all the way d...

Page 16: ...be set When in this mode use the arrow keys to set the maximum pressure 2 4 8 HART Resistor An internal 250 ohm HART Resistor can be enabled when the BetaGauge 330 is operated in the mA Measure 24V m...

Page 17: ...d with an internal sensor and optional external sensors are available Choose a sensor that is suitable for the pressure range and accuracy CAUTION Pressure sensors may be damaged and or injuries may o...

Page 18: ...BEFORE SELECTION HOME PUMP ZERO J1 J2 J3 COM VOLTS mA SWITCH TEST 24v DC PRESSURE MODULE F1 F2 F3 FILTER CHARGE PRESSURE VACUUM P2 P3 P4 MARTEL ELECTRONICS DPC 300A P1 P2 P3 P4 Pressure Module Adapter...

Page 19: ...f the loop is broken or the resistance burden is exceeded the calibrator will flash OL PUMP Test Item 4 20 mA mA MEASURE CONFIG LOWER MORE 16 000 mA 75 00 J1 J2 J3 COM VOLTS mA SWITCH TEST 24v DC PUMP...

Page 20: ...PRESSURE VACUUM P2 P3 P4 MARTEL ELECTRONICS DPC 300A P1 P2 P3 P4 Use low volume hose if possible Pressure Switch Figure 4 DPC 300A with pressure switch To perform a switch test the following steps mu...

Page 21: ...rate the device under test should be charged slowly with pressure in order to ensure accurate readings 6 Once the switch is open OPEN will be displayed bleed the pump slowly until the pressure switch...

Page 22: ...Calibrating transmitters 4 6 1 Using the mA measurement function The mA function enables the user to read out the 4 20 mA output from the device being calibrated This can be done in two ways 1 Passiv...

Page 23: ...NT PUMP SELECTOR MAIN SELECTOR WARNING VENT BEFORE SELECTION HOME PUMP ZERO J1 J2 J3 COM VOLTS mA SWITCH TEST 24v DC PRESSURE MODULE F1 F2 F3 FILTER CHARGE PRESSURE VACUUM P2 P3 P4 Use low volume hose...

Page 24: ...special function which can calculate the error in the pressure value from the mA value as a percentage of the 4 20 mA loop span The Error mode uses all three screens and has a special menu structure...

Page 25: ...is then eliminates manual calculations To use the ERROR function perform the following 1 Once the calibrator is switched on and operating press the F3 key to activate the MORE menu option Then press t...

Page 26: ...select DONE SET when finished 7 Use the arrow keys to set lower limit of the measuring range and select DONE SET when finished The ERROR mode will be ready to use The lower and upper limit of the meas...

Page 27: ...ugh the menu options until min max is shown on the display above the F1 key At this time pressing the F1 key will toggle the display through the min max values that are stored in the min max registers...

Page 28: ...MAX 120 PSI AIR SUPPLY 0 100 PSI OUTPUT 12 300 PSI PUMP 12 300 PSI MEASURE FINE ADJUST VENT PUMP SELECTOR MAIN SELECTOR WARNING VENT BEFORE SELECTION HOME PUMP ZERO J1 J2 J3 COM VOLTS mA SWITCH TEST 2...

Page 29: ...haracters locally Wrap lines that exceed terminal width 6 Select Ok 7 To see if the port works enter IDN This command will return information on the calibrator 6 3 Changing Between Remote and Local Op...

Page 30: ...s begin with an For example IDN tells the calibrator to return its identification Query Commands Commands that ask for information they always end with a For example FUNC Returns the current modes of...

Page 31: ...0E 00 A Character Response Data CRD Data returned as keywords For example PRES_UNIT returns BAR BAR PSI Indefinite ASCII IAD Any ASCII characters followed by a terminator For example IDN returns MARTE...

Page 32: ...r 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 pres...

Page 33: ...ue at which the pump will turn off REMOTE Puts the calibrator in remote mode SIM Set the calibrator to simulate the requested current SIM Returns the value of the current being simulated ST_CLOSE Retu...

Page 34: ...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 o...

Page 35: ...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...

Page 36: ...N ERROR _LOOP Returns the current state of loop power in percent error mode For example If you send ERROR_LOOP It will return ON if loop power is on in error mode ERROR_ MODE Turns percent error mode...

Page 37: ...LOWER P1 FUNC Returns the current mode of all displays For example if the calibrator is set to P2 ST on the upper display P1 on the middle and P1 on the lower FUNC Would return ST_P2 P1 P1 HART_ON Tur...

Page 38: ...ut output simulate state of the mA function of the calibrator For example If the calibrator was in mA simulate mode IO_STATE Would return SIM LOCAL Restores the calibrator to local operation if it was...

Page 39: ...command also switches the calibrator into mA output mode A number and a unit must be entered after the command For example OUT 5 MA sets the current output at 5 mA OUT Returns the output of the calibr...

Page 40: ...ommand LOCKOUT was entered before REMOTE Then the keypad is totally locked out and the user has to send the LOCAL command to get back to local operation SIM Sets the output for current simulation This...

Page 41: ...ng 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...

Page 42: ...RFI Conformance EN50082 1 1992 and EN55022 1994 Class B Safety EN IEC 61010 1 2010 3rd Edition Low Voltage Directive Connectors Ports 1 8 NPT BetaPort P pressure module adapter Included Accessories m...

Page 43: ...mstance beyond the value of the product 9 Maintenance 9 1 Cleaning the Unit Warning To avoid personal injury or damage to the calibrator use only the specified replacement parts and do not allow water...

Page 44: ...336 21130 mmH2O 4 C 703 089 N A mmH2O 20 C 704 336 N A inH2O 4 C 27 68067 8304 2 inH2O 20 C 27 72977 8318 9 inH2O 60 F 27 70759 8312 3 mmHg 0 C 51 71508 15515 inHg 0 C 2 03602 610 81 Proof pressure ma...

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Page 48: ...0220022 Rev B 4 13 www martelcorp com e mail sales martelcorp com Tel 603 434 1433 800 821 0023 Fax 603 434 1653 Martel Electronics 3 Corporate Park Dr Derry NH 03038...

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