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SECTION 3 OPERATION OF ACCESSORIES

3 - 7

Audio alarm signal

The audio alarm signal consists of a series of 2 kHz pulses
appearing at pin 7 of the multi-interface jack. The duty cycle of
the signal is 50%. Figure 3.1 shows the specification and
waveform of the alarm signal:

Alarm signal specification:
voltage :

6 V peak to peak

current :

14 mA max

frequency :

2 kHz

duty cycle:

50% square wave

duration:

50 milli-seconds

pin out: Pin 7 - signal

Pin 8 - ground

. . . .

50 mili-seconds

Figure 3.1 Alarm signal waveform

Note:

the audio interface can be connected an external alarm

box which can amplify the alarm signal or produce a strong flash
light signal, if needed. If users need to use their own earphones,
make sure that the earphones have at least 200 ohm
impedance.

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Содержание MiniRAE Plus PGM-76

Страница 1: ...MiniRAE Plus PROFESSIONAL PID OPERATION AND MAINTENANCE MANUAL Document No 002 4001 Rev E RAE SYSTEMS INC 680 West Maude Avenue Suite 1 Sunnyvale CA 94086 July 1998...

Страница 2: ...RAE Systems Inc 680 West Maude Ave 1 Tel 408 481 4999 Sunnyvale CA 94086 Fax 408 481 4998...

Страница 3: ...ction by RAE shall prove to have been defective in normal use and service To validate this warranty the original Warranty Registration Card supplied with the product must be completed and returned to...

Страница 4: ...T FOR THE WARRANTY OF TITLE THE FOREGOING EXPRESS WARRANTY IS IN LIEU OF ANY AND ALL OTHER WARRANTIES WHETHER EXPRESSED OR IMPLIED INCLUDING THE IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE...

Страница 5: ...5 Display Readings 2 10 2 6 Alarm Signal 2 12 2 7 Preset Alarm Limits and Calibration Data 2 14 2 8 Datalogging 2 15 2 9 Turn Off Buzzer 2 18 2 10 Back Light 2 19 2 11 Special Power on Sequence 2 20 2...

Страница 6: ...9 4 7 Calibration of MiniRAE Plus 4 10 4 7 1 Zero Gas Calibration 4 11 4 7 2 Enter Standard Calibration Gas Value 4 14 4 7 3 Standard Reference Gas Calibration 4 16 4 7 4 Alternative Calibration Meth...

Страница 7: ...Type Option 5 16 6 0 COMPUTER INTERFACE FOR MINIRAE PLUS 6 1 6 1 Installation of ProRAE 76 6 3 6 2 Connecting MiniRAE Plus to PC 6 4 6 3 Starting ProRAE 76 6 5 6 4 Receive Data from MiniRAE Plus 6 7...

Страница 8: ...Replacement 8 11 8 6 Pump Replacement 8 13 9 0 TROUBLESHOOTING 9 1 APPENDIX A FLOW CHART OF HYGIENE MODE A 1 APPENDIX B FLOW CHART OF SURVEY MODE B 1 APPENDIX C RESPONSE INFORMATION C 1 APPENDIX D QU...

Страница 9: ...MINIRAE PLUS OPERATION AND MAINTENANCE MANUAL ______________________________________________ v DANS DES ATMOSPHERES CONTENANT DES NIVEAUX DE COMBUSTION DES GAZ...

Страница 10: ...rform as designed only if it is used maintained and serviced in accordance with the manufacturer s instructions CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK TURN OFF POWER BEFORE REMOVING THE SENSOR C...

Страница 11: ...MODEL PGM 76IS EQUIPMENT IS CLASSIFIED AS TO INTRINSIC SAFETY FOR USE IN CLASS I DIVISION 1 GROUPS A B C D OR NON HAZARDOUS LOCATIONS ONLY WARNING EXPLOSION HAZARD SUBSTITUTION OF COMPONENTS MAY IMPA...

Страница 12: ...esidual vapor and reduce the reading to zero quickly 2 The battery of the MiniRAE Plus unit drains slowly even when turned off If the unit has not been charged for 4 5 days the battery voltage will be...

Страница 13: ...ry switch also serves as a reset switch for the microprocessor inside the MiniRAE Plus Professional PID unit If for some reasons the unit is hang up for example no response to key press or display fun...

Страница 14: ......

Страница 15: ...ic gases 1 organic vapors with the supplied 10 6 eV gas discharge lamp and 2 chlorinated compounds with the interchangeable 11 7 eV lamp available as in optional accessory Features are Lightweight and...

Страница 16: ...lamp with Teflon stainless steel chamber Operating Hours 10 hours continuous operation BatteryTwo rechargeable 6V 500 mAh sealed lead acid Field replaceable Gas Sampling Piston pump with 400 ml min in...

Страница 17: ...e Mode low and high alarm limits for Survey Mode Alarm 95 dB buzzer and flashing red LED to indicate exceeded preset limits low battery or lamp failure Calibration Two points field calibration for zer...

Страница 18: ...SECTION 1 GENERAL INFORMATION 1 4 This page is intentionally left blank...

Страница 19: ...ates alarm signals whenever the exposure exceeds preset limits Prior to factory shipment the MiniRAE Plus is preset with default alarm limits and the sensor is pre calibrated with 100 ppm Isobutylene...

Страница 20: ...the unit LCDdisplay with back light to show real time and calculated measurements Buzzer and red LED for alarm signal whenever the exposures exceed preset limits Probe assembly including gas inlet tub...

Страница 21: ...SECTION 2 OPERATION OF MINIRAE PLUS 2 3 The operation details are explained in the following sections Figure 2 1 Major parts of the MiniRAE Plus...

Страница 22: ...d to preset alarm limits In addition the STEL values are captured and recorded every 15 minutes for up to 12 hours A time stamp indicates when the unit was last turned on and off 2 Site Survey Leak De...

Страница 23: ...tall this software package how to interface MiniRAE Plus instrument to PC and how to configure the instrument for either Hygiene or Survey Mode After the configuration is downloaded to the instrument...

Страница 24: ...ys and Display Figure 2 2 shows the LCD display and the keypad on the front panel of the unit The function of the 5 keys during normal operation are summarized bellow MENU ENTER ON STEL TWA PEAK PPM F...

Страница 25: ...g task Caution entering programming task will interrupt normal gas monitoring operation of the unit Note enter key is also used to turn off buzzer during Hygiene Mode operation and to start stop datal...

Страница 26: ...ntration in ppm Short term exposure level STEL of the gas concentration in ppm Time weighted average TWA value of the gas concentration in ppm Peak gas concentration in ppm Battery voltage in volt fro...

Страница 27: ...flash once and buzzer beep once to ensure that they are functional The sampling pump will be turned on and start to draw air sample After about 30 seconds the display will change to instantaneous rea...

Страница 28: ...as 00 xxx x The site number starts from 00 and ends at 49 2 The STEL reading is the last 15 minute average reading of the gas concentration The reading is updated once a minute and is shown as xxx x...

Страница 29: ...ent battery voltage in volt The reading is updated once a minute and is shown as bAt xxx x in the LCD window Choose a reading The five readings are arranged in a round robin order instantaneous STEL T...

Страница 30: ...m signal When the low battery alarm occurs there will be about 20 30 minutes operating time left from the battery When the battery voltage falls bellow 5 3 volt the unit will be turned off automatical...

Страница 31: ...rapid 7 beeps and 7 flashes per second when the high threshold level has been exceeded The higher frequency of alarm signal indicates higher gas concentration The lamp or sensor failure alarm signal...

Страница 32: ...ts as listed below Refer to section 4 and 5 for programming procedures if new calibration or new alarm limits are required Table 2 2 Factory Calibrationand Preset Alarm Limits Calibration Standard Gas...

Страница 33: ...n addition the time stamps which indicate when the unit was last turned on and off when the peak occurred and when the TWA alarm occurred if any will also be recorded In Hygiene Mode the datalogging o...

Страница 34: ...iod is over the datalogging operation will stop 2 continuous sampling option in this option users press enter key once to start the first sampling period At the end of each sampling period next sampli...

Страница 35: ...will also flash next to the site number to indicate that the datalogging is in progress When the data memory is full 48 readings the unit will start to over write old data Default sampling period The...

Страница 36: ...m buzzer can be turned off for 60 seconds by pressing enter key After the 60 second time interval expires the buzzer will resume if the alarm condition still exists Note this feature is not available...

Страница 37: ...oor lighting conditions This back light can be turned on by pressing the up key When the back light is already on press up key will turn it off Note the LED back light consumes higher amount of energy...

Страница 38: ...sly stored data during normal operation The MiniRAE Plus also provides a special power on sequence in Hygiene Mode to clear all data i e the values of TWA STEL Peak concentrationand 48 STEL readings t...

Страница 39: ...st holding it down and then pressing on key to turn on power Note using the special diagnostic power on sequence the unit will perform normally except during zero gas calibration procedure see section...

Страница 40: ...interface jack Use a ball pen to move the switch to OFF position down When the switch is in OFF position the battery will retain 85 of its charge after 6 months Note when the battery is switched off t...

Страница 41: ...nal PID Unit 110 V AC charging adapter Gas outlet port adapter and sample collection Tedlar bag Remote access probe 8 ft Audio interface adapter cable and earphone Analog interface adapter cable Water...

Страница 42: ...ng status Red battery is being charged Green charging is completed No Light bad connection or defective battery Plug in the AC or DC adapter which will turn on the red charge status LED first If the b...

Страница 43: ...Therefore it is a good practice to always leave the unit in the charger when it is not used so that it is fully charged and ready for immediate use There is an optional single station battery charger...

Страница 44: ...unit A gas outlet port adapter with 2 ft Tygon tubing is supplied with the basic kit Insert the threaded end of the adapter into the gas outlet port and turn clock wise to tighten the adapter The open...

Страница 45: ...er to reach difficult to reach sampling space e g above a ceiling or inside a large container etc The other end of the Teflon tubing can be inserted directly into the gas inlet tube of the PID unit No...

Страница 46: ...e as an optional accessory for the MiniRAE Plus Professional PID Unit Open the rubber cover and connect the interface cable to the jack The audio buzzer signal is brought out through this interface ca...

Страница 47: ...larm signal specification voltage 6 V peak to peak current 14 mA max frequency 2 kHz duty cycle 50 square wave duration 50 milli seconds pin out Pin 7 signal Pin 8 ground 50 mili seconds Figure 3 1 Al...

Страница 48: ...datalogger Users can readily interface the MiniRAE Plus Professional Unit to external equipment for extended datalogging or other field applications WARNING TO REDUCE THE RISK OF IGNITION OF HAZARDOU...

Страница 49: ...ment The multi interface jack at the bottom of the unit is a circular DIN receptacle with 8 holes The signal assignment on this connector is shown in Figure 3 2 Pin Description 1 analog output 2 reset...

Страница 50: ...d PTFE membrane filter This device is to be inserted into the front end of the gas inlet probe during operation The water trap disk will prevent liquid to be suck into the PID unit by accident If wate...

Страница 51: ...the factory the dilution probe is preset at approximately 10 1 ratio with about 5 10 error User can adjust the dilution probe during calibration using a 5 64 Allen wrench to achieve exact 10 1 ratio H...

Страница 52: ...ilution probe using Tedlar bag method When calibrating the dilution probe it is highly recommended that a Tedlar bag be used instead of using a fixed flow regulator with the gas bottle directly becaus...

Страница 53: ...emain inside the hole Re attach the front piece to the body by two screws After replacing membrane filter or charcoal filter always re calibrate the probe 3 8 UV Attenuator Ring An UV attenuator ring...

Страница 54: ...er operating life However such a strong lamp may cause the sensor to saturate when high concentration of vapor is measured When to use the Attenuator Ring When high concentration of vapor greater than...

Страница 55: ...y to operate Removal of the Attenuator Ring 1 When the vapor concentration of interests are usually small less than 500 ppm or 2 When the 11 7 eV lamp is used or 3 When the UV lamp has been used for a...

Страница 56: ...SECTION 3 OPERATION OF ACCESSORIES 3 16 This page is intentionally left blank...

Страница 57: ...intuitive end use operation The display shows the menu option and the keypad is used for the selection or data entry to each menu option Note in Hygiene Mode a 3 level security protection strategy is...

Страница 58: ...task press menu key again During the programming task press menu key will abort and exit the current menu option and go on to the next menu option on the list At the completion of each menu setup entr...

Страница 59: ...imit tA xxx x 0 1 2 4 Set Peak limit PA xxx x 0 1 2 5 Zero gas calibration C0 xxx x 1 2 6 Standard gas value C1u xxx x 1 2 7 Standard gas calibration C1 xxx x 1 2 8 Clear all data CLr ALL 1 2 9 Change...

Страница 60: ...during the programming task as summarized below Table 4 2 Key Function in Programming Task on This key does not function during programming task up Increment numerical value for data entry down Decrem...

Страница 61: ...Unit should already be turned on before entering the programming task If it is not on refer to section 2 4 for the power on sequence 2 Press menu key to enter programming task Display then shows Pd 0...

Страница 62: ...til all four digits are entered 5 If the entered password is correct the unit shows the first programming menu The first menu option is to set STEL alarm limit The LCD display will show a message of S...

Страница 63: ...enter key to confirm the digit the flashing digit will move on to next digit to its right Repeat this process until all 4 digits of the new STEL alarm limit are entered 3 To preserve the previously s...

Страница 64: ...enter key to confirm the digit the flashing digit will move on to next digit to its right Repeat this process until all 4 digits of the new TWA alarm limit are entered 3 To preserve the previously st...

Страница 65: ...nter key to confirm the digit the flashing digit will move on to next digit to its right Repeat this process until all 4 digits of the new Peak alarm limit are entered 3 To preserve the previously sto...

Страница 66: ...ference gas First a zero gas which contains no detectable organic vapors is used to set the zero point C0 Then a standard reference gas which contains a known concentration of a specific gas is used t...

Страница 67: ...e organic vapor zeroing kit see Figure 4 1 is supplied to perform zero gas calibration This kit consists of Calibration adapter to link up with the gas inlet tube of the Professional PID Unit Charcoal...

Страница 68: ...as concentration dirty charcoal filter or instrument drift 2 Insert the zero gas adapter into the gas inlet tube of the Personal PID Unit as shown in Fig 4 1 3 The sampling pump draws air sample into...

Страница 69: ...calibration procedure Press menu key to exit zero gas calibration and move on to next menuitem 5 Remove the zero gas calibration adapter from the Personal PID unit 6 One may press menu key before pres...

Страница 70: ...ndard calibration gas to be used is the same as the displayed value press enter key 4 times to accept the displayed calibration value one digit at a time and move to step 4 3 If the concentration of t...

Страница 71: ...s described in section 4 7 3 5 Any time during step 2 or step 3 if the menu key is pressed the data entry operation will be aborted It is also assumed that user want to skip the standard gas calibrati...

Страница 72: ...d Reference Gas Calibration Figure 4 2 shows the typical installation of standard reference gas calibration It includes Calibration adapter with flow controller Reference gas bottle of 100 ppm isobuty...

Страница 73: ...C1 xxx x where C1 indicates that this is the standard calibration gas and xxx x is the actual gas reading in ppm based on new calibration data Note the reading should be very close to the value of the...

Страница 74: ...rence gas starts to flow an error message of CAL Err will be displayed Simply turn on the gas flow wait for it to stabilize and press the enter key This should allow the instrument to be calibrated In...

Страница 75: ...SECTION 4 PROGRAMMING IN HYGIENE MODE 4 19 higher energy lamp The second reason is that the UV light intensity of the lamp is weak In this case replace the UV lamp with a newer and stronger one...

Страница 76: ...ocedures as described in Section 4 7 3 In general the sampling bag calibration method will allow the air flow from the bag matches the flow rate of the sampling pump of each individual PID unit Theref...

Страница 77: ...ng pump of MiniRAE Plus Therefore it should provide a slightly more accurate calibration result The disadvantage of this method is that the adjustable flow regulator is more expensive C Tee Connection...

Страница 78: ...c gas based on the relative sensitivity also known as calibration factor The calibration factorfor a specific gas is defined as sensitivity to a standard gas Calibration factor ______________________...

Страница 79: ...d calibration standard value instead of the actual calibration standard value in step 3 of section 4 7 2 For example enter 57 ppm instead of 100 ppm in step 3 Continue to finish gas calibration using...

Страница 80: ...d to 100 ppm benzene gas it reads 175 4 Multiply this value by the calibration factor of benzene 0 57 The result is 100 ppm which is the actual concentration of benzene Note the calibration factor is...

Страница 81: ...last turned on and off when the peak occurred and when the TWA alarm occurred if any will also be recorded These stored data can be cleared by selecting the clear data menu option 1 Clear data option...

Страница 82: ...ing from the left most digit use up or down arrow key to change the digit value and enter key to confirm the digit the flashing digit will then move on to next digit to its right Repeat this process u...

Страница 83: ...igit use up or down arrow key to change the digit value and enter key to confirm the digit the flashing digit will then move on to next digit to its right Repeat this process until all 4 digits of the...

Страница 84: ...word before they can enter the programming tasks Once in the programming task they are allowed to change all menu items 3 level 2 security in this level users are allowed to make any changes in progra...

Страница 85: ...as shown in Screen 6 9 Step 2 Move cursor to the security level section of the menu and choose one of the three security levels by clicking the mouse on one of the three radio buttons Step 3 After the...

Страница 86: ...to interface the MiniRAE Plus instrument to PC and how to change password in PC A brief summary of the steps includes Step 1 From the main menu of the ProRAE software Open the Hygiene Mode configurati...

Страница 87: ...can choose a new site number select one of two calibration data re calibrate the unit change the sampling period clear data memory change the gas concentration alarm limits and change time and date o...

Страница 88: ...use the other three keys to perform the desired programming tasks At the completion of each menu entry the display will automatically advance to next menu option Pressing the menu key will exit the cu...

Страница 89: ...libration C0 xxx x 4 Enter standard gas value C1u xxx x 5 Standard gas calibration C1 xxx x 6 Set sampling period in seconds SP xxxx 7 Clear all data Clr ALL 8 Set low alarm limit LA xxx x 9 Set high...

Страница 90: ...k in Survey Mode is identical to that of Hygiene Mode Table 5 2 Key Function in Programming Task on This key does not function during programming task up Increment numerical value for data entry down...

Страница 91: ...already be turned on already before entering the programming task If it is not on refer to section 2 4 for power on procedure 2 Press menu key to enter programming menu 3 Note if the unit is in the mi...

Страница 92: ...own the up or down key the site number will automatically advance to next number at approximately once every half second This allows users to advance to a new site number rapidly without repetitively...

Страница 93: ...GAS x where x is 1 or 2 This indicates that the current calibration data selection is gas 1 or gas 2 For example gas 1 may be calibrated using isobutylene gas while gas 2 may be calibrated using benz...

Страница 94: ...a The calibration procedure for either one of the two gases is identical to that of the Hygiene Mode Please refer to section 4 7 for the detailed steps of calibration Note before starting any calibrat...

Страница 95: ...econds 2 To modify this period starting from the left most digit use up or down arrow key to change the digit value and enter key to confirm the digit the flashing digit will move to next digit to its...

Страница 96: ...iod will also be recorded for each reading These stored data can be cleared by selecting the clear data menu option 1 Clear data option is the 7th menu option in Table 5 1 Display shows a flashing Clr...

Страница 97: ...2 To modify this limit starting from the left most digit use up or down arrow key to change the digit value and enter key to confirm the digit the flashing digit will then move on to next digit to it...

Страница 98: ...it flashing where xxx x is the previously stored high alarm limit 2 To modify this limit starting from the left most digit use up or down arrow key to change the digit value and enter key to confirm t...

Страница 99: ...setting the hour and minute value are identical to that of Hygiene Mode Please refer to section 4 9 for operation details 5 12 Set Month and Date In Survey Mode users are allowed to set the month and...

Страница 100: ...this option users press enter key once to start the first sampling period At the end of each sampling period next sampling period will start automatically The datalogging operation will not stop unti...

Страница 101: ...Options sub menu The PC display will show a dialog box as shown in Screen 6 10 Step 2 Move cursor to the datalog option section of the menu and choose one of the two options by clicking the mouse on o...

Страница 102: ...stored For example if the sampling period is set to be 60 seconds then the average value of 60 readings during each 60 seconds sampling period will be stored The data type option has to be set up by...

Страница 103: ...the menu and choose one of the two data type options by clicking the mouse on one of the two radio buttons Step 3 After the instrument configuration is completed send it to the instrument as describe...

Страница 104: ...SECTION 5 PROGRAMMING IN SURVEY MODE 5 18 This page is intentionally left blank...

Страница 105: ...nal PID unit to either Hygiene or Survey Mode to set alarm levels to select security level and password for Hygiene Mode and to select datalog options for Survey Mode It also allows users to retrieve...

Страница 106: ...software packages The only differences in ProRAE 76 are summarized bellow 1 A text browse window is used to display text data instead of using the Notepad program from Windows This will eliminate some...

Страница 107: ...e do not use B drive for installation From the Program Managerof Window pull down the File sub menu Select Run from the sub menu A dialog box will appear as shown in Screen 6 1 Screen 6 1 Run Menu of...

Страница 108: ...ally a 25 or 9 pin male D connector Caution Before connecting the cable to the MiniRAE Plus unit make sure that the power on both the PID unit and PC are turned off After the cable is connected turn o...

Страница 109: ...o start the ProRAE 76 program double click the RAE logo icon The main menu of ProRAE 76 software will appear in a new window as shown in Screen 6 2 Screen 6 2 Main Menu of ProRAE 76 The software funct...

Страница 110: ...so a tool bar beneath the menu bar The frequently used functions are represented in this tool bar in the form of a small icon For example the Send function in the Communicationsub menu is represented...

Страница 111: ...please wait for about 20 Sec After the data is received successfully a dialog box will be shown indicating that the Receiving Process is completed Click the OK button the data will be displayed in gr...

Страница 112: ...sub menu for a graphic display of the data Screen 6 3 shows a typical graphic display The alarm limit is shown as a horizontal line Screen 6 3 Graphic Display When viewing the graphic display of the d...

Страница 113: ...ime an error message will appear Users should always set the start and stop hour for viewing to be within the actual datalog start and stop hour Users also can choose the Select Plot Type function fro...

Страница 114: ...graphic data display may not reflect the actual time if the data was not collected in a continuous sampling mode The graphic data is plotted based on the assumption that the first data point is the s...

Страница 115: ...ne Mode includes the start stop and elapse time of the PID unit It also includes the alarm limits and actual values of TWA STEL and Peak measurements The Peak time is the time when the Peak actually o...

Страница 116: ...text data can be saved as text file ASCII characters by high light the area of the text window and click the Copy to Clipboard button Then user can open another word processing program such as Word Wo...

Страница 117: ...h is similar to Screen 6 7 Screen 6 7 Save File Dialog Box Type in a desired file name in the file name box Choose any 8 character as file name Always use DAT as file name extension Click OK button or...

Страница 118: ...ction form the Viewsub menu first The text data will be displayed in a browse window Then click Print button to print the text data A printer setup dialog box will appear before the printing starts so...

Страница 119: ...set alarm levels select security level and password for Hygiene Mode and select datalog options for Survey Mode from PC and send the configuration information to the unit when it is ready From the ma...

Страница 120: ...on The title bar of the main menu will show ProRAE 76 c prorae76 hygiene cfg or ProRAE 76 c prorae76 survey cfg when the corresponding file is opened If users do not need to modify the default instrum...

Страница 121: ...ne Mode Configuration Users can now move the cursor to each data entry box to fill in the information such as Operator ID Site Name Alarm Limits etc User can also click on the radio button to choose s...

Страница 122: ...E 6 18 information are entered depress Enter key or click OK button Screen 6 10 Survey Mode Configuration Note the Operator ID Site Name and Year information is only used for reference purpose It is n...

Страница 123: ...ta password and real time clock information will be preserved in the unit so that users do not need to re calibrate or re enter password and real time clock information after a new configuration infor...

Страница 124: ...please wait for about 40 Sec After the information is sent successfully a dialog box will appear to indicate that the Send Process is completed Click the OK button or depress the Enter key and the sc...

Страница 125: ...tool bar A dialog box will appear similar to Screen 6 7 Type in a desired file name in the file name box Users can choose any 8 character as file name with CFG as file name extension Avoid using HYGIE...

Страница 126: ...allow the graphic image to be copied onto the clipboard Users can then paste the graphic image to other Windows programs such as word processing programs presentation graphic programs etc etc Please...

Страница 127: ...n which users are allowed to configure the MiniRAE Plus instrument to be in either Hygiene or Survey Mode Users can also set the security level and password in Hygiene Mode and select datalog options...

Страница 128: ...drive for installation Make sure that you select the correct disk format for A drive From the DOS prompt type a install followed by enter key C a install enter Note the boldface letter shows the keys...

Страница 129: ...Plus Professional PID Unit V 2 30 Date 3 22 95 Menu Selection 1 Configure MiniRAE Plus for Survey Mode 1a manual sampling datalog peak 1b manual sampling datalog average 1c continuous sampling datalo...

Страница 130: ...tep 3 choose menu operations From the main menu users can choose following four operations 1 Configure for Survey Mode To configure the MiniRAE Plus 76 to be in Survey Mode type 1a 1b 1c or 1d based o...

Страница 131: ...nsfer is successful the display will change to Sending Manual Survey Mode Configuration Event Datalogging E E P R O M U T I L I T Y for Xicor 24 L Cxx Calling format Burn sdt_xic LPT B filespec messag...

Страница 132: ...operation If there is any problem during the communication there will be an error message Error 8 Target board not connected to the selected LPT or Error 3 Verification negative Check the cable to mak...

Страница 133: ...cription of the security level for Hygiene Mode operation The factory default setup for Hygiene Mode is level 1 security Note when option 2b is entered a new screen will be displayed to ask for a pass...

Страница 134: ...calibration data password serial number and real time clock information will be preserved in the unit so that users do not need to re calibrate or re enter password serial number and real time clock i...

Страница 135: ...ic LPT C messagefilespec If messagefilespec not specified then output to SCREEN Legal values for LPT are 1 2 3 4 please wait It will take approximately 20 seconds to complete the data transfer from Mi...

Страница 136: ...rn to the main menu Edit data file The data file is saved as a text file in ASCII format under the name that users have specified Users can invoke any text editor to review or modify the data file For...

Страница 137: ...RAE Plus unit and the printer conveniently 4 Quit the ProRAE program From the main menu of ProRAE software type 4 to exit the program and return to DOS prompt Note if the ProRAE program is terminated...

Страница 138: ...datalogging operation the serial number is printed on the data report The unique serial number is loaded into the non volatile memory of each unit in the factory It will not be erased even if the bat...

Страница 139: ...m C PRORAE ser enter Users should see following main menu Rae System PGM 76 PID Serial Number Setup Program Feb 1995 UNIT SERIAL NUMBER IS XXXXXX IS THIS SERIAL NUMBER CORRECT Y N Step 3 enter serial...

Страница 140: ...SECTION 6 COMPUTER INTERFACE FOR MINIRAE 6 36 SET UNIT SERIAL NUMBER XXXXXX VERIFICATION SUCCESSFUL The program will terminate automatically...

Страница 141: ...ectrodeless discharge UV lamp as the high energy photon source for the PID instrument A special high efficiency lamp driver is developed to turn on the UV lamp see Figure 7 1 micro computer driver UV...

Страница 142: ...The ions collected on the electrode are measured by an electrometer A single chip microcomputer is used to control the operation of the lamp alarm buzzer LED sampling pump power supply and the electr...

Страница 143: ...NANCE As shown in Figure 8 1 the major items of MiniRAE Plus Professional PID Unit that require periodic maintenance are Battery Probe Assembly Sensor module Lamp Sampling Pump Figure 8 1 Main compone...

Страница 144: ...from field work A fully charged battery powers MiniRAE Plus Professional PID unit for 10 hours continuous operation The charging time is less than 10 hours for a fully discharged battery The charging...

Страница 145: ...s completed No Light bad connection or defective battery 4 Make sure that the indicator LED turns red to indicate that the unit has made good contact and is being charged After the LED turns green the...

Страница 146: ...installed see section 4 9 and 4 10 on how to program real time clock 4 Ensure the battery plug is securely connected to the MiniRAE Plus Professional PID unit 5 Close the MiniRAE Plus Professional PI...

Страница 147: ...ended to replace the membrane filter once a week or when the filter is dirty upon visual inspection 1 Turn off power of the MiniRAE Plus Professional PID Unit Remove the probe assembly 2 Use a tweezer...

Страница 148: ...velops depends on the type and concentration of the vapors being sampled As a guide it is recommended to clean the sensor module upon returning from field work The sensor module is made of four major...

Страница 149: ...ront cover Note the sensor block is hold together by another 4 hex nuts at the back of the sensor block It is not recommended to remove these 4 inner hex nuts and completely disassemble the sensor blo...

Страница 150: ...screw driver on the front to hold the screw in place Do not over tighten these hex nuts because the soft Teflon parts can be damaged easily Make sure that the coaxial cable tan color with a lug is att...

Страница 151: ...SECTION 8 MAINTENANCE 8 9 free of any kink and are not caught under the sensor module 9 Close the MiniRAE Plus Professional PID Unit covers and replace probe assembly...

Страница 152: ...guide it is recommended to replace this dust filter once a week 1 Turn off power to the MiniRAE Plus Professional PID Unit 2 Remove the probe assembly Use a small tweezers to remove the steel wool in...

Страница 153: ...he window so that window surface is not damaged 1 Turn off power of MiniRAE Plus Professional PID Unit 2 Refer to Figure 8 1 unscrew the probe assembly remove four screws and open the PID covers Remov...

Страница 154: ...e After cleaning hold the lamp up to the light at an angle to detect any remaining film Repeat the process until the lamp window is clean Rinse thoroughly with anhydrous methanol to remove any residue...

Страница 155: ...unscrew the probe assembly remove four screws and open the Professional PID Unit 3 Refer to Figure 8 1 and carefully remove two screws that hold the pump to the top cover Disconnect two Tygon tubes c...

Страница 156: ...y 7 Turn on the MiniRAE Plus Unit Wait for the pump to come on Check to see if air is drawn into the gas inlet tube If the pump works correctly when the gas inlet is blocked by a finger the pump noise...

Страница 157: ...ed battery Defective battery Microprocessor hang up Battery switch is off Solutions Check battery connection Charge or replace battery Reset microprocessor by turning off and then on battery switch no...

Страница 158: ...lace membrane filter Use water trap disk Reading abnormally low Reasons Lamp dirty or weak Solutions Clean or replace lamp see section 8 4 Err xxx x message during operation Reasons Dirty sensor Weak...

Страница 159: ...cal gas Slow response to gas input Reasons Leakage in probe assembly or sensor module Solutions Tighten the probe assembly and sensor module No air draw at gas inlet tube Reasons Defective pump or le...

Страница 160: ...ull scale measurement in humid environment Reasons Dirty or wet sensor Solutions Clean and dry sensor Use water trap disk to block out moisture Measurement max out at certain level Reasons Dirty lamp...

Страница 161: ...IENE MODE OPERATION A 1 APPENDIX A FLOW CHART OF HYGIENE MODE OPERATION light on light off password STEL TWA peak battery real N N menu N N P ON enter OFF unit off X Program Task NORMAL OPERATION real...

Страница 162: ...imit TWA limit peak limit zero gas cal enter std value N menu change time enter SA xxx x menu menu menu menu menu enter tA xxx x enter PA xxx x enter C0 xxx x enter C1u xxx x enter Hr xx xx P change d...

Страница 163: ...F SURVEY MODE OPERATION B 1 APPENDIX B FLOW CHART OF SURVEY MODE OPERATION light on light off TWA peak battery real N N menu N N P ON enter OFF unit off X Program Task NORMAL OPERATION real enter star...

Страница 164: ...d value menu select site enter menu menu menu menu menu enter enter SP xxxx enter C0 xxx x enter C1u xxx x enter enter SItE xx P change time menu enter Hr xx xx PROGRAMMING TASK low limit menu LA xxx...

Страница 165: ...1 Correction Factors for the 10 6 eV lamp Compound Correction Factor Acetaldehyde 5 5 Acetone 1 1 Allyl alcohol 2 4 Benzene 0 53 Butadiene 1 0 Butyl acetate 2 6 Carbon disulfide 1 2 Cyclohexane 1 4 C...

Страница 166: ...nene a 0 31 Pinene b 0 37 Propylene 1 7 Styrene 0 42 Tetrahydrofuran 1 8 Toluene 0 50 Trichloroethylene 0 52 Vinyl chloride 2 14 Xylene m 0 43 Xylene o 0 59 Xylene p 0 45 The calibration factors in Ta...

Страница 167: ...ify password ENTER 4 times enter 4 digit password MENU SA 025 0 Set STEL limit ppm MENU tA 010 0 Set TWA limit ppm MENU PA 050 0 Set Peak limit ppm MENU C0 0 0 Zero gas reading ppm ENTER reset reading...

Страница 168: ...zero MENU C1u 100 0 Enter standard gas value ENTER 4 times enter 4 digit 0 999 9 GAS On turn on gas bottle ENTER CAL calibration in progress C1 100 0 standard gas reading ENTER reset reading to std va...

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