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Internal UV Ozone Photometer

Page 9-2

the tube determines the ozone concentration according to the
following equation:

Equation 9-1

Where:



= Absorption Coefficient of ozone at 254nm and with

the sample gas at 0°C and 760 mmHg = 308

L

= Optical Path Length = 31.6 cm

I

= Sample Count

(Conditioned detector output for sample gas)

I

o

= Reference Count

(Conditioned detector output for clean air)

T = Sample Temperature (°C)
P = Sample Pressure (mmHg)

Note  that  the  temperature  “T”  and  pressure  “P”  are  included  in
Equation  9-1.    The  on-board  microcontroller  measures  the
temperature  and  pressure  of  the  sample  gas  in  order  to  perform
the  automatic  temperature/pressure  correction  of  the  ozone
reading.









Ozone PPB

T

P

L

I

I

o

(

)

ln



















273

273

760

10

9



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Содержание 2010D

Страница 1: ...MODEL 2010D GAS DILUTION CALIBRATOR OPERATIONS MANUAL I N S T R U M E N T S...

Страница 2: ...curacies that may be contained in this manual In no event will Sabio Engineering Inc be liable for direct indirect special incidental or consequential damages resulting from any defect or omission in...

Страница 3: ......

Страница 4: ...Main Menu Topics 3 11 Using the 2010D Screens 3 12 Edit Screens 3 13 Section 4 Installation 4 1 Placement 4 1 Environment 4 1 Source Gas Cylinder Selection 4 2 Diluent Selection 4 4 Source and Diluent...

Страница 5: ...s Sequences Page 2 and 3 6 11 Setting up Sequence Points for Multi Gas Sequences Page 2 and 5 6 14 Auto Calibration Set up 6 19 Scheduling Automatic Calibrations 6 20 Digital I O Group Set up 6 21 Ass...

Страница 6: ...nually Entering a Calibration Table 8 6 Performing an Interactive Calibration 8 7 Editing Calibration Data 8 8 Selecting Device Parameters 8 9 Interactively Calibrating Mass Flow Controllers 8 9 Inter...

Страница 7: ...nce Schedules Screen 6 20 6 9 The Edit Digital I O Group Assignments Screen 6 23 6 10 Sequence Start Remote Activation Patterns Screen 6 24 6 11 Point Start Remote Activation Patterns Screen 6 26 6 12...

Страница 8: ...Port 1 Connections 4 9 4 5 Communications Port 2 Connections 4 10 4 6 Model 2010D to PC Connections 4 11 4 7 Model 2010D to Modem Connections 4 11 4 8 Status Input Output Port Connections 4 12 4 9 Aud...

Страница 9: ...environmental agency goals and requirements User Benefits Quality Construction Sabio selected very high quality inert valves for the source permeation and dilution streams The source and permeation o...

Страница 10: ...and remote calibration control eight port output manifold with port connections for up to seven gas analyzers and portable and 19 inch rack mounting options The Model 2010D s precision ozone generator...

Страница 11: ...outputs Gas dilution system featuring the finest inert valves and mass flow controllers for control and precise metering of source and diluent gases Internal data storage via removable 4 GB SD Memory...

Страница 12: ...CCM 0 1 SLPM 0 2 SLPM Optional second source mass flow controller Input pressure 15 30 PSIG Four gas cylinder input ports Optional two additional ports Source manifold purge port Optional external per...

Страница 13: ...ver is greater Precision 1 PPB Lower detectable limit 0 8 PPB Zero drift for 24 hours and 30 days less than 1 PPB Span drift for 24 hours and 30 days less than 0 5 percent of reading Lag time less tha...

Страница 14: ...ise control of UV lamp intensity and temperature levels User IO and Networking 8 Status input outputs standard expandable to 24 programmable status I O bits for control and monitoring of calibrator fu...

Страница 15: ...minutes Diagnostic routines for system calibration checkout and leak testing Accessories and Options Internal UV Ozone Photometer External Model 1001 or Model 1001P Compressed Air Source External Mode...

Страница 16: ...most Models of the 2010D the power switch is located on the lower right hand corner of the rear panel next to the power cord inlet connector Some units may have a power switch located on the lower ri...

Страница 17: ...of the Model 2010D is similar to operation of many popular Windows applications The front panel touch buttons are used in conjunction with the display when entering Model 2010D commands The touch but...

Страница 18: ...ins on page 4 1 4 Set up the 2010D for your specific calibrations The Model 2010D Calibration Set up section starting on page 6 1 covers this topic 5 Verify and or calibrate the flow controllers and t...

Страница 19: ...e front panel buttons are used for entering commands and information into the Model 2010D Provision is also made to support a standard IBM PC compatible PS2 style keyboard which plugs into the rear pa...

Страница 20: ...System Operations Page 3 2 Figure 3 1 The Model 2010D Front Panel...

Страница 21: ...moving backward from field to field F3 TAB F3 functions as a Tab button for moving forward from field to field F4 Page Up F4 functions as a Page Up button to move to the previous page or screen F5 Pag...

Страница 22: ...s button is used to obtain updated status information about the operation of the calibrator Purge The purge button momentarily activates the purge valve for flushing calibrator source manifold pneumat...

Страница 23: ...ed to move the cursor to the right Down Arrow This button is used to move the cursor down or to scroll down Up Arrow This button is used to move the cursor up or scroll the display up On some occasion...

Страница 24: ...ayed in the upper left corner of the button and the numeric or special function An ALT message is displayed on the status bar in the lower right hand portion of the screen when the alternate keys are...

Страница 25: ...ch minute in a sequence is equal to one second ALT H Fake Hardware This special test mode is used at the factory for software testing When fake hardware is selected the normal 2010D hardware is bypass...

Страница 26: ...dows and screens The menu bar at the top supports drop down menus and sub menus To select an item move the selection highlight with the arrow keys to the item of choice and then press the enter button...

Страница 27: ...e bottom of the screen a status line displays information about the current state of the 2010D The following information may be found on the status line Time and Date The current time and date is alwa...

Страница 28: ...lected The bottom line of the screen displays the functions associated with the seven function keys F1 through F7 The remaining portion of the screen is used to display menus setup screens and system...

Страница 29: ...Options parameters and calibration routines are provided for these devices Comm The Communications topic is used to configure the serial communications ports for remote terminal communications or com...

Страница 30: ...figuration information to be viewed but don t allow the contents to be altered View Screens may be removed by pressing the End Sequence key Status Screen Status Screens contain information about the c...

Страница 31: ...on Dialog will be presented asking if the changes should be saved or discarded Selecting Yes will exit the screen and save the changes There are a number of different types of data entry fields each i...

Страница 32: ...ll be filled with characters Digital I O Field Digital data such as sequence status output or remote control input assignments may be entered in Digital I O Fields These fields are useful for entering...

Страница 33: ...options to be selected however any number of Check Boxes in a group may be selected Check Boxes are selected by entering 1 Y or X de selected by entering 0 or N or toggled by entering or Space Though...

Страница 34: ...ned CAUTION Do not install the Model 2010D near devices which produce large magnetic or electric fields The calibrator and air source should not be installed immediately next to each other Environment...

Страница 35: ...w controller are approximately 40 1 to 2 000 1 when a minimum instrument flow of 4 000 cc min is delivered to the Span Gas Output ports The low end of each flow controller usually 5 of maximum flow is...

Страница 36: ...tion Range for 50 PPB Point 50 PPB 40 00 2 000 PPB or 2 00 PPM 50 PPB 2 001 100 050 PPB or 100 05 PPM Concentration Range for 490 PPB Point 490 PPB 40 00 19 600 PPB or 19 6 PPM 490 PPB 2 001 980 490 P...

Страница 37: ...min Typical dilution ratios for the standard diluent flow controller ranges and permeation oven flow are approximately 21 28 1 to 107 38 1 when a minimum flow of 2 000 cc min is delivered to the Span...

Страница 38: ...2 Instrument Span Points 100 400 PPB Oven Output Concentration Required for 100 PPB Point 100 PPB 107 38 10 738 PPB or 10 738 PPM Maximum Concentration That Model 2010D Can Generate 10 738 PPM 21 28 5...

Страница 39: ...t Concentration PPM K Molar Constant for SO2 from Figure 4 1 For this application a 2 215 ng min at 40o C SO2 permeation tube would be purchased Table 4 1 Common Molar Constants Gas Formula Km _______...

Страница 40: ...min diluent flow controller A Model 2010D equipped with a 20 000 cc min flow controller requires a minimum of 22 liter min air output at 25 psig pressure Gas cylinders with clean diluents such as air...

Страница 41: ...for Ozone analyzer connections The compressed air source Sabio Engineering Model 1001 is normally connected to the Diluent 1 Input Port Connect the compressed air source input port to the system samp...

Страница 42: ...Installation Page 4 15 Figure 4 1 Rear Panel...

Страница 43: ...d Instrument Span Gas Input ports are connected to the remaining Span Gas Out Ports 1 through 7 starting with port 1 Cap all Span Gas Out ports that do not have connections Power The standard operatin...

Страница 44: ...1 5 DATA BIT 4 J1 6 DATA BIT 5 J1 7 DATA BIT 6 J1 8 DATA BIT 7 J1 9 DATA BIT 8 J1 10 ACKNOWLEDGE J1 11 BUSY J1 12 PAPER OUT J1 13 SELECT J1 14 AUTO FEED ERROR J1 15 ERROR J1 16 INITIALIZE PRINTER J1 1...

Страница 45: ...4 5 VOLTS J2 5 CLOCK J2 6 NO CONNECTION RS 232 Serial Communications Port 1 The cable should be equipped with a 9 pin female D connector on one end and an appropriate connector on the other end The CO...

Страница 46: ...READY J4 7 REQUEST TO SEND J4 8 CLEAR TO SEND J4 9 RING INDICATOR RS 232 Serial Communications Cable Model 2010D to PC A null modem cable is required when connecting the Model 2010D to a personal com...

Страница 47: ...g the Model 2010D to a modem for downloading software updates remote control or other applications The cable should be equipped with a 9 pin female D connector on the Model 2010D serial communication...

Страница 48: ...of current 5 mw of power per bit All unused leads should be covered with insulation Status output ports can be used to interface with Opto 22 devices The signal levels are TTL voltages The current in...

Страница 49: ...Output Port Connections Continued SIGNAL SIGNATURE 2010D J6 __________ _________________ J6 12 DIGITAL GROUND J6 13 STATUS I O BIT 7 J6 14 DIGITAL GROUND J6 15 STATUS I O BIT 8 J6 16 DIGITAL GROUND J...

Страница 50: ...NO CONNECTION J6 50 DIGITAL GROUND Instrument Audit Analog Input Output Port A standard off the shelf serial data cable with a 25 pin D male connector and clip on leads is supplied as part of the ins...

Страница 51: ...J7 8 AIN 3 INPUT J7 21 AIN 3 INPUT J7 9 AIN 4 INPUT J7 22 AIN 4 INPUT J7 10 ANALOG GROUND J7 23 ANALOG GROUND Air Source Activation Port A standard off the shelf serial data cable with all pins wired...

Страница 52: ...able 4 10 Air Source Activation Port Connections SIGNAL SIGNATURE 2010D J8 __________ _________________ J8 1 CHASSIS GROUND J8 2 AIR ON HIGH Switched DC J8 6 AIR ON LOW Analog Ground Photometer Analog...

Страница 53: ...ly activated when an associated calibration Sequence or Point is active J10 is located on the option module s rear panel see Figure 4 1 which may also support other connectors related to the Photomete...

Страница 54: ...er supply at any one time Ordinarily since only one or two Instrument Solenoids will be active at a time this is sufficient CAUTION Under no circumstances should the total current drawn from all Instr...

Страница 55: ...ear panel see Figure 4 1 which may also support other connectors related to the Photometer or Instrument Solenoid options Table 4 13 External Permeation Oven Connections 2010D J11 SIGNAL SIGNATURE ___...

Страница 56: ...ice network The Ethernet cable plugs into a standard RJ45 socket The IP address and port number are set up via the Comm menu The USB Device Port Also included with the Network Interface Card is a USB...

Страница 57: ...efined before performing automatic calibrations Refer to Section 6 Model 2010D Calibration Set up for more information Automatic calibrations can either be activated externally by a device such as a d...

Страница 58: ...r each sequence point will determine the concentrations of the secondary gases which are calculated from the dilution ratio needed to produce the primary gas and the relative concentrations of the sec...

Страница 59: ...ype of manual calibration you wish to use 3 Select Operator Stepped from the menu and press the Enter button A list of sequences that have been predefined or programmed will appear see Figure 5 1 Figu...

Страница 60: ...then press the Enter button The selected sequence point will be started and a status screen will appear see Figure 5 3 The type of the status screen that appears will depend upon which type of sequenc...

Страница 61: ...n To perform a Timer Stepped manual calibration the following steps are performed 1 From the Main Menu screen select Sequences and press the Enter button A pop up menu will appear 2 Select Run and pre...

Страница 62: ...here are four main status screens Idle Dilution Ozone and GPT see Figure 5 4 Figure 5 5 Figure 5 6 and Figure 5 7 If the Permeation Oven or Photometer options are installed status screens for these de...

Страница 63: ...Operation Page 5 7 Figure 5 5 The Dilution Status Screen Figure 5 6 The Ozone Status Screen...

Страница 64: ...that the user has a good understanding of the pneumatic operation of the 2010D and the purposes of it s various flow controllers and solenoid valves In this mode it is entirely up to the user to manu...

Страница 65: ...n Figure 5 4 3 Press the Diag button or F11 on an external keyboard until the message Debug Mode is presented on the status line near the bottom of the screen 4 Press the F3 Tab key until the Diluent...

Страница 66: ...the gas cylinder containing Nitric Oxide NO is selected Press 1 or Space so that an X appears in the box If a pressurized gas source is attached the Source 1 MFC Monitor flow should now increase unti...

Страница 67: ...ast four channels 25 28 are internal voltage reference and zero channels that are used for automatic zero span correction The data presented in the screen can be viewed in either engineering or voltag...

Страница 68: ...ssing F7 will cause all temperatures to be presented in units of F even within in other screens Figure 5 9 The Analog Ouput Diagnostic Screen The Internal Control Outputs and User Digital I O Bits Scr...

Страница 69: ...ts Diagnostic Screen Figure 5 11 The User Digital I O Bits Diagnostic Screen Both screens operate in the same way An X in the square brackets that are associated with each input or output bit indicate...

Страница 70: ...diately but the corresponding In bit may take a second or two to reflect the change For the Internal Control Outputs if an Out bit is active 1 but the In bit is not active after a second or two a prob...

Страница 71: ...Bits are to be used for signaling the sequence status or for remote activation the Digital I O Groups must be set up as described on page 6 21 5 Set up calibration Sequences as described on Page 6 6 S...

Страница 72: ...gas Edit to modify a gas and Delete to remove a gas from the table 3 To add a gas select New and press the Enter button The New Gas Table Entry screen shown in Figure 6 1 will appear Figure 6 1 New G...

Страница 73: ...nal gases Set up Gas Standards Each compressed gas cylinder attached to a source inlet port must be set up as a Gas Standard Gas Standards may be set up as follows 1 Select Gases from the main menu an...

Страница 74: ...usly entered in the field will automatically be adjusted to the selected units 8 Repeat steps 5 and 6 until all components in the Gas Standard have been entered 9 To save the Gas Standard press the En...

Страница 75: ...tor is used for providing the diluent Nitrogen or other cylinder gas may also be used however if ozone or GPT calibrations are to be performed the diluent must be air with the normal percentage of oxy...

Страница 76: ...lend cylinder Ozone A metered quantity of diluent is irradiated by a precisely controlled ultraviolet lamp in order to produce ozone Gas Phase Titration A metered quantity of source gas is diluted wit...

Страница 77: ...s are undergoing calibration Auto Calibrations may occur in one of three ways The first method is Scheduled in which the 2010D automatically initiates the calibration sequence at a specified time and...

Страница 78: ...uences and press the Enter button A pop up menu will appear 2 Select New and press the Enter button The pop up screen New Sequence Page 1 of 3 will appear Figure 6 4 New Sequence Screen Page 1 3 Enter...

Страница 79: ...currently associated with the source inlet ports If the Gas Standard that you need is not in the list it can be added as described on page 6 3 and or assigned to a source port as described on page 6 4...

Страница 80: ...21 A 1 or a 0 can be inserted in each bit location that is not indicated by a decimal point When this sequence is subsequently activated the pattern of 1 s and 0 s will be presented on the User Digita...

Страница 81: ...Calibration Setup Page 6 11 Setting up Sequence Points for Single Gas Sequences Pages 2 and 3 The following paragraphs are a continuation of the steps describing how to set up page 1 of a sequence in...

Страница 82: ...for concentrations in this sequence may be selected from a drop down list PPM PPB or PPT All primary gas and ozone concentrations in this sequence will be expressed in the selected units Pressing the...

Страница 83: ...nutes that you wish this calibration point to remain active when the sequence is timer stepped Press the Enter button and you will either be moved to the next point or to the Point Status Outputs area...

Страница 84: ...sing F4 and F5 to page up and page down Information can be edited by positioning the cursor using the F2 and F3 key to move backward or forward between fields and then entering the new information in...

Страница 85: ...pendently programmed for each point of a Multi gas sequence Figure 6 6 shows page 2 of a typical multi gas screen Figure 6 6 New Sequence Screen Multi gas Page 2 of 5 The additional information makes...

Страница 86: ...the Gas Standards are the special symbols Zero Ozone and if a perm oven is installed Permeation If the Gas Standard that you need is not in the list it can be added as described on page 6 3 and or ass...

Страница 87: ...ozone the point is assumed to be a GPT type Keeping these rules in mind enter the primary gas and ozone concentrations for this point leaving a field blank is equivalent to entering zero Remember whic...

Страница 88: ...on Setup Page 6 18 20 Repeat steps 15 through 19 until all calibration points for this sequence have been defined or until all 10 points on the page have been entered When page 2 is completed press F5...

Страница 89: ...ll be prompted to select which status outputs are associated with this particular calibration point Bit positions indicated by a 1 or a 0 have been reserved for Point Status Outputs and are available...

Страница 90: ...sequence information can be reviewed by pressing F4 and F5 to page up and page down Information can be edited by positioning the cursor using the F2 and F3 key to move backward or forward between fiel...

Страница 91: ...is then assigned to each sequence that is to be remotely activated see page 6 24 When one of the Sequence Start Patterns is detected on the User Digital I O Bits the sequence assigned to that pattern...

Страница 92: ...libration Setup Page 6 22 Scheduling Automatic Calibrations To set up the Model 2010D for Scheduled Auto Calibration perform the following steps 1 Configure calibration sequences as described in the s...

Страница 93: ...you want to schedule Note All sequences that have been initialized in the 2010D will be listed in the Edit Sequence Schedules Screen under the Sequence Name Place an X in the Enabled area of the scre...

Страница 94: ...ely activating sequences or sequence points each of the 24 bits must be assigned to their respective purposes before these functions can be activated The 24 User Digital I O Bits can be activated remo...

Страница 95: ...signal when a particular sequence is active The bit pattern that is produced on the output depends upon what was entered during sequence setup More information about setting up Sequence Status Outputs...

Страница 96: ...Input is needed that will be used to terminate a sequence initialize it by setting the desired bit to 1 When finished press Enter to proceed to the next field 5 Identify the bits that will be used fo...

Страница 97: ...and the initialization will be saved If you wish to discard the new initialization arrow to the N and press the Enter button Assigning Sequence Start Patterns Any of the 20 possible sequences may be a...

Страница 98: ...s indicated by 0 or 1 have previously been assigned as Sequence Control Inputs and may be used for entering bit patterns If all the bits are indicated by decimal points then set up the Sequence Contro...

Страница 99: ...If you wish to discard the new initialization arrow to the N and press the Enter button Assigning Point Start Patterns Any points in any of the 20 possible sequences may be activated by means of the...

Страница 100: ...he menu Another pop up menu will appear 5 Select Point Start and press the Enter button A list of sequences will be presented 6 Select the name of the sequence whose points you want to assign Point St...

Страница 101: ...or will be on the Y for saving Press the Enter button and the initialization will be saved If you wish to discard the new initialization arrow to the N and press the Enter button Setting the Time and...

Страница 102: ...mpted to save the information or not The cursor will be on the Y for saving Press the Enter button and the initialization will be saved If you wish to discard the new initialization arrow to the N and...

Страница 103: ...es and points can be started or stopped and several other 2010D features can be accessed This capability opens up a number of applications involving remote control of the Model 2010D by local or remot...

Страница 104: ...ry one for the computer and one for the Model 2010D A Hayes compatible external modem is recommended for the Model 2010D The baud rate should be at least 2400 however 9600 baud or greater is highly re...

Страница 105: ...e DSR Control When DSR is enabled the DSR line will be controlled by the modem DSR will be low when the modem is in command mode and high when the modem is on line When this line is dropped the Model...

Страница 106: ...then selecting either Com1 or Com2 After a com port is selected the screen shown in Figure 7 1 will appear Figure 7 1 Port Set up Screen The following options are available from this screen Remote Ter...

Страница 107: ...baud rate the better however if communications errors appear frequently the baud rate should be lowered Parity Stop Bits Etc Except for special applications these items should be left at their default...

Страница 108: ...efore terminating the remote session and disconnecting When the session is terminated the DTR line will be dropped causing an attached modem to disconnect that is if it is set up to handle DTR in this...

Страница 109: ...Command Mode Setup Screen The Command Mode screen allows the protocol to be customized to a certain extent Following are descriptions of the items found on this screen Model 2010D Address The calibra...

Страница 110: ...iagnostic tool for troubleshooting communications problems When enabled a two digit numeric code terminated by a CR character will follow the NAK A listing of possible error codes is provided on page...

Страница 111: ...end of command character The CR character is the default for the ML protocol Field separator The character used to separate parameter or data fields in commands and responses The comma character is th...

Страница 112: ...if communications errors appear frequently the baud rate should be lowered Parity Data Stop Bits Except for special applications these parameters should be left at their default values no parity 8 dat...

Страница 113: ...el 2010D s front panel display will be presented on the remote computer s screen Subsequently pressing keys either on the front panel or at the remote computer will cause both screens to respond accor...

Страница 114: ...2010D s ALT key enables or disables the ALT mode which allows shifted characters to be accessed The ALT key on the PC keyboard alters the meaning of another key held down simultaneously but does not...

Страница 115: ...s of the Dot Command and Modbus protocols Within this section the following conventions are used within command descriptions X A single letter represents an ASCII character XXX Fields with all capital...

Страница 116: ...g analog or calculated values will be presented in the default engineering units regardless of what units are currently being displayed on the 2010D s screen at the time Digital Word Representation Th...

Страница 117: ...e cmd addr param1 param1 CHK CR Where Comma field separator Start of Command 40 hex Cmd Command Character Addr Address ParamX Parameters optional CHK Optional Data Verification Field CR Carriage Retur...

Страница 118: ...of each parameter may vary depending upon the data for example how large a numeric value is The exact meaning of data in the data field depends entirely upon the command The data must consist of prin...

Страница 119: ...is then divided by 256 and the integer remainder is converted to two hex digits For example P 0010D cr is a valid command to activate a purge cycle The checksum 0D hex is calculated as follows ASCII c...

Страница 120: ...turn Character 0D hex Error Response NAK ER CR Where NAK Negative Acknowledge Character 15 hex ER Optional two digit error code CR Optional carriage return character If no errors are detected and no d...

Страница 121: ...specialized fields are described within the command descriptions Monitor Labs Commands Hex Decimal Start of Command Character 40 64 Comma field separator 2C 44 ACK Acknowledge 06 06 NAK Negative Ackn...

Страница 122: ...The checksum calculated by the 2010D did not match the checksum in the command 03 Buffer Overrun Error The calibrator s receive buffer was overrun because the command packet was too long 05 Data Fiel...

Страница 123: ...n a quiescent idle state Command Format Command S AAA CHK CR Response Good ACK Error NAK ER CR Purge P The Purge command causes the calibrator to purge its source inlet manifold for a short duration T...

Страница 124: ...lds can be found on page 25 Command Format Command TS AAA seq name point CHK CR Where seq name The name of the sequence point The starting point If blank the sequence starts at the beginning Response...

Страница 125: ...point field of the sequence identified by seq name will be activated and will remain active until another point is activated calibrations are stopped or a timeout occurs If a sequence point is active...

Страница 126: ...information about the Model 2010D The status generally corresponds to information that is presented on the 2010D s status screens The response will depend on the status types field which is a list of...

Страница 127: ...meters Per Minute SCCM Temperatures Degrees Centigrade C Pressures Millimeters of Mercury mmHg Gas Concentrations Parts Per Billion PPB Command Format Command GS AAA status types CHK CR Where status t...

Страница 128: ...pres gas flow PPP gas status total flow mon num gases prim gas name prim gas conc gas 2 name gas 2 conc gas N name gas N conc And Where Dilution Data Fields dil mfc ctl The diluent MFC setpoint SCCM...

Страница 129: ...calculated ozone concentration PPB Photometer Data Fields photo avg The averaged ozone measurement PPB lamp temp ctl The photometer lamp temperature setpoint C lamp temp mon The measured photometer l...

Страница 130: ...espond to the following solenoid valves Perm Vent Valve Perm Source Valve Perm Pump External Perm Valve Gas Concentration Data Fields total flow mon The measured total flow SCCM num gases The number o...

Страница 131: ...ransmission over TCP IP networks Modbus operates by reading and writing coils and registers Coils are individual on off controls or sensors such as valves or digital IO bits Registers contain numeric...

Страница 132: ...itor mV Read Only 8 Ozone Generator Flow SLPM Read Only 10 Ozone Generator Lamp Setpoint mV Read Only 12 Ozone Generator Temperature C Read Only 22 Perm Oven Temperature C Read Only 24 Perm Oven Flow...

Страница 133: ...d Data Retrieval via SabioComm The Model 2010D can be accessed and controlled remotely via customer supplied software using any of the supplied protocols In addition Sabio offers SabioComm a software...

Страница 134: ...is a simple process that may be performed by the end user This is usually accomplished by following an interactive software procedure that prompts the user to perform a multi point calibration steppi...

Страница 135: ...20 rows each representing a calibration point and three columns the control voltage the monitor voltage and the actual flow or ozone concentration The data contained in a lookup table may be used to...

Страница 136: ...e points By definition this technique will reproduce each calibration point exactly assuming perfect repeatability Spline Fit This method uses a cubic spline to find a smooth curve that passes through...

Страница 137: ...Linearization Methods Comparison of Different Curve Fit Techniques on Ozone Data Non linearity is exaggerated for clarity 0 50 100 150 200 250 300 350 400 450 0 0 5 1 1 5 2 2 5 3 3 5 4 4 5 Voltage Ozo...

Страница 138: ...the coefficients will be displayed if the data was entered as a table or via the interactive calibration procedure the lookup table data will be displayed Manually Entering Polynomial Coefficients If...

Страница 139: ...e selected in most screens all calibration coefficients are based on units of SCCM for flows and PPB for ozone Manually Entering a Calibration Table Selecting New Table from the calibration menu allow...

Страница 140: ...entered in units of Volts or mV and flows to be entered in SCCM or SLPM Although the data may be entered in different units any coefficients or linearization equations calculated from the table will b...

Страница 141: ...ure 8 5 Interactive Calibration Following is a description of the Interactive Calibration screen The columns of data presented in the screen are Control This column of numbers represents the control v...

Страница 142: ...th View the type of data that can be edited depends upon how the data was entered as a table or as coefficients Selecting Device Parameters Ordinarily it is not necessary to modify the device paramete...

Страница 143: ...010D outlet ports except one The un capped port should be connected to the inlet of the flow standard The outlet of the flow standard should be vented to atmospheric pressure 5 If the flow standard is...

Страница 144: ...a measurement 10 Take a measurement from the external flow standard If the flow standard requires temperature and pressure correction take a temperature reading and apply it and the room s barometric...

Страница 145: ...and or the ozone standard apply power to both and allow at least 60 minutes for everything to warm up and stabilize 2 The 2010D s pneumatic system must be free of leaks before performing ozone calibr...

Страница 146: ...rameters item from the calibration menu and then selecting a method from the Linearization Method list see Figure 8 6 For the ozone generator the spline method is recommended 7 Select the Interactive...

Страница 147: ...nter the first control voltage in the left most column The 2010D will apply this voltage to the UV Power Supply which drives the ozone lamp causing ozone to be produced 11 Observe that the monitor vol...

Страница 148: ...l cause the calibration coefficients to be calculated If the spline linearization method is used no coefficients will be displayed but the linear correlation coefficient will be calculated Since an un...

Страница 149: ...2 7 1 234 0 99986 1 2 3 4 5 6 20 Control V 0 200 0 400 0 600 0 800 1 000 Monitor V 0 201 0 402 0 602 0 803 1 003 Actual PPB 57 3 175 4 304 1 425 2 545 1 Date Time Flow Pres A B C Correl 06 01 12 09 15...

Страница 150: ...nce they are text files they can be viewed by any text editor Microsoft Word or imported to Microsoft Excel for analysis In addition the files can be read by selecting the History option in the device...

Страница 151: ...aust outlet and a connector J9 that supports analog outputs for connection to external measuring devices such as a datalogger or strip chart recorder The Photometer s rear panel also supports another...

Страница 152: ...cm I Sample Count Conditioned detector output for sample gas Io Reference Count Conditioned detector output for clean air T Sample Temperature C P Sample Pressure mmHg Note that the temperature T and...

Страница 153: ...user to make the choice of where to monitor the ozone In most cases the photometer s sample inlet will be connected to an unused port of the 2010D s outlet manifold allowing it to directly monitor th...

Страница 154: ...electable range of 0 1V 0 5V or 0 10V The outputs are provided on a 9 pin female connector labeled J9 Photometer IO see Figure 9 1 The pin connections are shown below Chassis 1 6 Chassis Output 1 2 7...

Страница 155: ...zone Photometer These are Audit Mode In Audit Mode the Photometer is used to measure the ozone output of the Model 2010D and serves as an independent audit device Ozone Servo Mode In this mode the Pho...

Страница 156: ...tomatically activate the Photometer any time that an ozone point or sequence begins The Photometer will not be activated however during GPT calibrations The ozone value as measured by the Photometer w...

Страница 157: ...the 2010D s A D converter after signal conditioning the detector s output The voltage displayed here should never approach zero or five Volts Detector Count The detector count is the value that is ac...

Страница 158: ...information about the last fifteen Photometer cycles in a tabular format with the most recent value on top Each time the Photometer completes a cycle the data will scroll down to make room for the ne...

Страница 159: ...Calibration Status screen as Measured Ozone Audit 1 The Audit 1 column of numbers presents the voltage between 0 000 and 5 000 Volts that is measured on the first Audit analog input An external ozone...

Страница 160: ...n Detailed Many items found in the detailed screen are the same as the general screen however there are a few additional items They are Ref This is the detector reading during the reference half of th...

Страница 161: ...he Photometer There are circumstances however when performance could be improved by adjusting one or more of these parameters CAUTION Making changes to parameters in the Photometer Parameters screens...

Страница 162: ...t the 2010D s ozone generator while an ozone calibration is being performed Continuous Monitor By checking this box the Photometer will remain active continuously while power is applied to the 2010D T...

Страница 163: ...efore switching the sample reference solenoid valves The data collected during this time is averaged in order to reduce noise Lamp Setpoint This is the voltage applied to the Photometer s UV lamp driv...

Страница 164: ...rameters the outputs may be scaled and filtered as needed DAC Full Scale Conc This is the ozone concentration that corresponds to 5 Volts on the analog output The units of measure for this concentrati...

Страница 165: ...cept and slope respectively of a simple linear equation With the exception of the sample flow the Photometer s sensors are very linear Of these sensors the Sample Temperature and Pressure are the most...

Страница 166: ...ensate the measured ozone When the Photometer is inactive and the pump is off the Sample Pressure as viewed in the status screen should indicate the room s barometric pressure An incorrect calibration...

Страница 167: ...tants Proportional Term Constant The Proportional constant is multiplied by the proportional term of the PID equation This term is the difference or error between the current measured value and the de...

Страница 168: ...e PID loop to attempt to compensate for variations that are merely cause by noise The value entered for the PID Filter is the number of photometer cycles to use as the filter s time constant Filter Ho...

Страница 169: ...tandard by selecting Ozone Photometer and then Ozone Calibration from the Devices menu As can be seen in the Figures below the photometer calibration operates in a fashion almost identical to the cali...

Страница 170: ...ator in order to produce an ozone concentration for comparison of the Photometer and external ozone standard This column of values is not used to calculate Photometer calibration coefficients The Samp...

Страница 171: ...discussion of control theory and the tuning of PID loops is outside the scope of this manual a few pointers and tips may give a user unfamiliar with PID control a chance of successfully tuning the 20...

Страница 172: ...xample setting the A B and C coefficients to 0 95 and 0 will cause about a 5 span error that the PID loop must adjust for After arriving at a set of PID constants try varying the B coefficient and obs...

Страница 173: ...otometer and Ozone Generator Be sure to restore the original Sample Hold and Measure times The response may be somewhat different than that while using the simulated Photometer requiring additional ad...

Страница 174: ...Source as shown on Figure 9 9 3 Using a 9 16 wrench remove the 3 Way valve connection from the sample tee and plug the horizontal port with a suitable cap Refer to Figure 9 9 for details 4 Apply the...

Страница 175: ...air is regulated by a precision pressure regulator and orifice to 1400 SCCM or 1 4 Liters The following procedure can be used to determine the flow of the zero air and to adjust the regulator if the f...

Страница 176: ...eter 5 The flow standard should be reading 1 4 L or 1400 SCCM after the zero air is applied 6 If the flow is reading high or low then the pressure regulator will need to be adjusted Adjustments can be...

Страница 177: ...MODEL 2010D GAS DILUTION CALIBRATOR SCHEMATICS...

Страница 178: ......

Страница 179: ...uments Inc will at it s option replace or repair free of charge the defective product LIMITATIONS ON WARRANTY The warranty set forth above does not extend to and shall not apply to 1 Products which ha...

Страница 180: ...arranty repairs For more information in this regard contact the factory RETURNING A PRODUCT FOR REPAIRS Upon determining that repair services are required the customer must 1 Obtain an RMA Return Mate...

Страница 181: ...the customer must pay shipping to Sabio Instruments Inc Sabio Instruments Inc will pay for return shipping to the customer via ground transportation NOTE PRODUCTS RETURNED TO SABIO INSTRUMENTS INC FRE...

Страница 182: ...INSTRUMENTS 2548 Shell Road Units A D Georgetown Texas 78628 Phone 512 869 0544Fax 512 869 0993 sales sabio com...

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