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2020 Software Manual

48

Mode

on page 62 for details of switching between display modes.

Time Weighted Average (TWA) Mode

The TWA accumulator sums concentrations every second until 8
hours of data have been combined. If this value exceeds the TWA
alarm setting, a TWA alarm is generated. The TWA is not
calculated using a moving average. Once 8 hours of data have been
summed, the accumulation stops. In order to reset the TWA
accumulator, press the “Clr” key.

This sum will only be complete after 8 hours, so the meter displays
the current sum divided by 8 hours. While you are in TWA mode,
the time on the status display will show the number of minutes and
hours of data that TWA has accumulated. When this reaches 8:00
or 8 hours, 2020 stops accumulating data and the TWA is complete.

TWA calculations are always being performed by 2020. You can
display the results of the calculations by selecting TWA as the
Display mode. See

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Содержание Photovac 2020

Страница 1: ...ned in accordance with PerkinElmer s instructions and that proper calibration is regularly performed As with any complex device 2020 is subject to failure and while PerkinElmer has taken and continues...

Страница 2: ......

Страница 3: ...Photovac Model 2020 Portable Photoionization Detector...

Страница 4: ...rticular purpose PerkinElmer shall not be liable for errors contained herein for incidental consequential damages in connection with furnishing performance or use of this material Copyright Informatio...

Страница 5: ...Reference No 600762 Rev E...

Страница 6: ......

Страница 7: ...at and Cold 27 Unpacking 27 Support Equipment and Consumables 28 Calibration 28 Field Operation 29 Printer 29 Computer 30 Battery Charging 30 Removing and Replacing the Battery Pack 30 Charging the Ba...

Страница 8: ...Display Functions 61 Light 61 Mode 62 Lock 62 Unlock 64 Detailed Operation General Information 69 Calibration Using the Flow Match Regulator 70 Connecting the Flow Match Regulator to the Cylinder 70...

Страница 9: ...101 Assembling the Dilution Probe 102 Installing the Dilution Probe 102 Calibration with the Dilution Probe 103 High Accuracy Operation 105 DC Power Cord 105 Belt Clip Holster 106 11 7 eV UV Lamp 106...

Страница 10: ...ooting 142 Serial to Parallel Converter Troubleshooting 144 Establishing Computer Communications 148 Technical Description General Operation 155 Photoionization Detector 156 Calibration 158 Datalogger...

Страница 11: ...14 Connection Description Dialog Box 93 Figure 15 Connect To Dialog Box 94 Figure 16 Properties Dialog Box 95 Figure 17 Properties Dialog Box 96 Figure 18 Layout of Serial to Parallel Converter 97 Fig...

Страница 12: ...Field Operation 83 Table 4 Additional Field Items 84 Table 5 DIP Switch Settings for Baud Rate 98 Table 6 DIP Switch Settings for Parity 98 Table 7 DIP Switch Settings 99 Table 8 Serial to Parallel C...

Страница 13: ...Notices and Warnings...

Страница 14: ......

Страница 15: ...ommunications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense 2020 I S...

Страница 16: ...OF GASES These accessories are for use with 2020 I S in a hazardous location MX350006 Calibration Regulator MX350007 Wrist Strap MX350008 Belt Clip Holster MX350010 Carrying Case MX350014 User s Refe...

Страница 17: ...with local codes for possible special disposal instructions 4 Do not open or mutilate the battery pack 5 Exercise care in handling battery packs in order not to short the terminals with conducting mat...

Страница 18: ...endive Equipment for Use in Hazardous Locations 2020 I SC C EST NE PAS INTENDER POUR D TECTER DES NIVEAUX DE COMBUSTION DES GAZ CET APPAREIL EST CLASSIFI POUR USAGE DANS DES ATMOSPH RES CONTENANT DES...

Страница 19: ...nt comporter des instructions de mise au rebut particuli res 4 Ne pas ouvrir et ne pas ab mer le bloc pile 5 Manipuler le bloc pile avec soin afin de ne pas court circuiter les bornes avec des mat rie...

Страница 20: ...987 2020 EX IS NOT INTENDED TO DETECT COMBUSTIBLE LEVELS OF GASES 2020 EX IS CLASSIFIED FOR USE IN ATMOSPHERES CONTAINING COMBUSTIBLE LEVELS OF GASES These optional accessories may be used with 2020 E...

Страница 21: ...with local codes for possible special disposal instructions 4 Do not open or mutilate the battery pack 5 Exercise care in handling battery packs in order not to short the terminals with conducting mat...

Страница 22: ...ndard for Electromagnetic Compatibility Part 1 Light Industrial Environment 2020 has been tested and conforms to the guidelines specified in EN50082 02 Generic Immunity Standard for Electromagnetic Co...

Страница 23: ...Introduction 1...

Страница 24: ......

Страница 25: ...operation in Chapter 2 More detailed operational instructions are provided in Chapter 3 Accessories are covered in Chapter 4 Routine maintenance is covered in Chapter 5 Troubleshooting techniques are...

Страница 26: ...NOTE A note indicates significant information Warnings and Safety Practices Please read this section before operating 2020 Approved Models of 2020 This manual provides operational information for all...

Страница 27: ...gas service or adapt equipment without consulting your gas supplier Do not heat or expose cylinders or regulators to temperatures above 52 C 125 F The cylinders may rupture at high temperatures Use o...

Страница 28: ...ction are clean Turn the pressure control valve on the cylinder all the way out close the cylinder Turn the regulator outlet to off Open the gas cylinder valve slowly and check for leaks Adjust the de...

Страница 29: ...ry pack Exercise care in handling battery packs in order not to short the terminals with conducting materials such as rings bracelets and keys The battery or conductor may overheat and cause burns Cha...

Страница 30: ...012 Other concentrations of the calibration gas may be required This will depend on your application 3 Zero air Occasionally clean ambient air is suitable for calibration Alternatively you can use a g...

Страница 31: ...a 2020 Field Kit Part No MX350005 is available The field kit includes a cable kit a carrying case and a calibration regulator spare battery pack and a cylinder of 100 ppm isobutylene calibration gas...

Страница 32: ...separate software for 2020 See Computer on page 90 for details NOTE 2020 is not classified for use in hazardous locations with a computer Battery Charging Before beginning operation of 2020 the batte...

Страница 33: ...020 NOTE The connector is polarized It will only fit one way Do not force the connection 7 Place the battery pack in the 2020 case Ensure the battery wires are not pinched or strained 8 Ensure the wri...

Страница 34: ...32 2 Plug the AC adapter into an AC outlet If you are using the European AC adapter ensure the correct plug is installed on the line cord If it is not correct for the wall outlet in your area then it...

Страница 35: ...y charged and ready for use It is normal for a fully charged battery to indicate it is charging red light when first plugged in The LED will turn green as the battery charges 4 When the battery pack i...

Страница 36: ...ent is turned off and then on again repeatedly or if the backlighting is turned on Overview 2020 measures the concentration of airborne photoionizable gases and vapors and automatically displays and r...

Страница 37: ...record up to 1000 manual entries There is no averaging of data in manual operation Recorded data can be reviewed on the display sent to a printer in either tabular or graphical format or sent to a com...

Страница 38: ......

Страница 39: ...Tutorial Session 2...

Страница 40: ......

Страница 41: ...ter reading will be reported using one of 2 resolutions A resolution of 0 1 will be used for concentrations below 100 ppm and a resolution of 1 will be used for concentrations above 100 ppm The meter...

Страница 42: ...gure 2 Layout of 2020 Keys Fixed Keys The three round keys below the soft keys each have a fixed function The first key is the ON OFF key the middle key is EXIT and the last key is ENTER The ON OFF ke...

Страница 43: ...tor on off Clock Sets Date and Time Cal Zero Zeroes instrument Span Spans instrument Mem Next Prev Chng User Sets Name RF and Alarms Lib Next Prev Log Prnt Grph From Generates a graphical report To Ta...

Страница 44: ...n arrows are used to change the character highlighted by the cursor The right arrow is used to advance the cursor to the next character on the right When the cursor is advanced past the right most cha...

Страница 45: ...tabilize Default Display The meter display shows the detected concentration The resolution of the display changes with the magnitude of the reading A reading of 0 to 99 9 will be displayed with a reso...

Страница 46: ...ncentration was recorded In TWA mode the time represents the number of hours and minutes during which the TWA has been accumulating For PEAK and STEL monitoring the date and time correspond to the cur...

Страница 47: ...e last calibration was incomplete Over Instrument over range The detector electronics have become saturated See Fault Messages on page 127 ALPK Detected concentration exceeds the PEAK alarm level ALST...

Страница 48: ...ging alarms and is named Ack If no alarm exists then the Ack key is not shown To clear the alarm press the Ack key Once acknowledged the alarm indicators are cleared The alarm status will remain until...

Страница 49: ...average This moving average provides a 15 minute average of the last 15 minutes with a one minute update rate Since the average is calculated using 15 one minute averages the meter display will only u...

Страница 50: ...e been summed the accumulation stops In order to reset the TWA accumulator press the Clr key This sum will only be complete after 8 hours so the meter displays the current sum divided by 8 hours While...

Страница 51: ...Tutorial Session 49 Mode on page 62 for details of switching between display modes...

Страница 52: ...ffects the reading that the meter is displaying For example if you display the MAX reading and you press Clr only the MAX value is cleared The TWA is still accumulating in the background PEAK Mode The...

Страница 53: ...the pump After selecting Set Pump 2020 responds by displaying the new pump status The detector is also turned off when you turn the pump off This prevents the detector from being damaged when there i...

Страница 54: ...hows 3 devices which can be set Clock Pump and Cal Press the Pump key 4 The 2020 turns the pump off If the pump was off pressing Pump will turn the pump on 5 A message will be displayed to show you th...

Страница 55: ...cter it wraps around to the first character again Formatting characters such as the colon in the time and the slash in the date are skipped when advancing the cursor 4 Use the arrow keys to enter the...

Страница 56: ...ications Lib allows you to select an entry from a pre programmed Library The name response factor and three alarm levels are all set from the library To select a library entry to program the selected...

Страница 57: ...report To Edits the datalogger Curr Deletes current log entry All Deletes all log entries Range From Deletes a range of log entries To Mode Next Sets operating mode as Manual 15s 1m 2m 5m or15m Prev E...

Страница 58: ...ENTER key 2 Press Log and select the Mode key 3 Use the Next and Prev keys to scroll through the list 4 Press the ENTER key If you select manual operation the datalogger will be cleared Before the da...

Страница 59: ...ntents of the datalogger before deleting any information 2 To delete the current entry press Curr You will be prompted to confirm your selection Press YES to delete the last displayed entry Press NO t...

Страница 60: ...2020 Software Manual 58 the datalogger or at the end of the datalogger will free usable space...

Страница 61: ...2 57 9 98 2 95 03 07 11 25 06 OK 2 9 53 1 98 5 95 03 07 11 25 21 OK 3 5 232 238 95 03 07 11 25 36 OK 40 7 360 496 95 03 07 11 25 51 ALPK 60 3 606 916 95 03 07 11 26 06 ALPK 129 943 1832 95 03 07 11 26...

Страница 62: ...e difference Plus signs are used to graph the area between difference and sample Difference is calculated by subtracting the background from the sample To print your logged data 1 Press the ENTER key...

Страница 63: ...hows a map of the Display functions Disp Lght Toggles backlighting on off Mode TWA TWA meter STEL STEL meter MAX MAX meter Peak PEAK meter Unlocks instrument Changes password Lock Passwd If locked the...

Страница 64: ...be updated to reflect the new mode See STEL TWA MAX and PEAK Operation on page 46 for a detailed description of each mode Lock The Lock key is used to prevent access to 2020 s sensitive options Sensi...

Страница 65: ...sword The password can be up to 4 numerical characters Press the ENTER key to accept the password NOTE If you change the password make sure you record the setting Once the instrument is locked there i...

Страница 66: ...ou will see the message Error LOCKED See Disp To gain access 1 Press EXIT twice and then press Disp 2 Press Lock enter the password and press ENTER Once the password has been entered and verified pres...

Страница 67: ...Tutorial Session 65...

Страница 68: ......

Страница 69: ...Detailed Operation 3...

Страница 70: ......

Страница 71: ...est results use a commercial source of zero grade air and a second regulator Zero air should have not more than 0 1 ppm total hydrocarbons THC If compound threshold limit values TLVs are exceeded you...

Страница 72: ...gulator to the calibration gas cylinder If you are using a portable tank of calibration gas Part No MX350012 connect the regulator Part No MX350006 directly to the tank 2 When the regulator is connect...

Страница 73: ...s if required Only one Cal Memory can be used at a time Each Cal Memory stores a different response factor zero point sensitivity and alarm levels 5 Select Chng and then User Enter a name for the cali...

Страница 74: ...ve counter clockwise Open the regulator until the ball is 1 8 from its rest position NOTE Do not set the flow rate too high 12 Press the ENTER key 2020 sets its sensitivity 13 When the display reverts...

Страница 75: ...t No 600649 directly to the tank If you are using a large cylinder of calibration gas you must obtain a high purity regulator as specified in Support Equipment and Consumables on page 28 Isobutylene i...

Страница 76: ...NOTE Do not remove the nut from the union as the Teflon ferrules contained inside the nut may be lost See Figure 12 4 Insert the tube stub from the gas bag into the knurled nut Tighten the knurled nut...

Страница 77: ...me Each Cal Memory stores a different response factor zero point sensitivity and alarm levels 5 Select Chng and then User Enter a name for the calibration memory 6 Press the ENTER key and enter a resp...

Страница 78: ...the middle of zeroing or spanning it will power on displaying a Cal status This indicates that you need to calibrate 2020 While the Cal status is active all alarms are inactive Programming the Cal Mem...

Страница 79: ...response is not specific to any one compound The reading displayed represents the total concentration of all ionizable compounds in the sample 7 Calibrate the instrument as described in Calibration Us...

Страница 80: ...impractical to carry a range of different standards into the field Approximate results can be obtained by calibrating 2020 with the recommended span gas and entering the appropriate response factor T...

Страница 81: ...ound The response factors on page 169 serve only as a guide to concentrations measured by 2020 Results are expected to be accurate to within 10 ppm or 25 of the displayed result whichever is greater A...

Страница 82: ...s that you need See Calibration Using the Flow Match Regulator on page 70 and Programming the Cal Memories on page 76 NOTE It does not matter which Cal Memory is selected or which response factor is e...

Страница 83: ...status will change to BkGd A background measurement must be made When you have an accurate background press Next 2020 will record the displayed concentration when you press the Next key 8 The instrume...

Страница 84: ...Computer on page 90 for printing and saving logged data Preparing for Field Operation Field Check List When using 2020 for field operation the following items should be carried into the field to redu...

Страница 85: ...MX390033 Calibration regulator Part No MX350006 Tank s of calibration gas Part No MX350012 Spare gas bag for zero air Part No MX396017 Gas bag adapter for zero air Part No MX396010 Supply of commercia...

Страница 86: ...is in working order before heading into the field 1 Press the Set and Clock keys and ensure the correct time is entered Press the ENTER key and ensure the correct date has been entered 2 Ensure the b...

Страница 87: ...ator the STEL moving average and the MAX See STEL TWA MAX and PEAK Operation on page 46 You may want to delete all entries from the datalogger to avoid confusion between different days data and to avo...

Страница 88: ...2020 Software Manual 86...

Страница 89: ...Connecting Accessories 4...

Страница 90: ......

Страница 91: ...and operating 2020 with a serial to parallel converter NOTE 2020 is not classified for use in hazardous locations with a printer To connect your instrument to a printer 1 Turn 2020 off NOTE You must t...

Страница 92: ...in a format that can be imported into a spreadsheet or database for further calculations NOTE 2020 is not classified for use in hazardous locations with computers You may need to keep more data than c...

Страница 93: ...order to manipulate the data you must import the data either as a text file into a spreadsheet where they may be parsed and converted to numeric data or into a text editor or word processor where they...

Страница 94: ...rt on the computer without the gender changer or the 9 to 25 pin adapter you are most probably connected to a parallel port You will need at least one of the adapter cables to connect 2020 to a serial...

Страница 95: ...he data this icon will then appear in the HyperTerminal group Figure 14 Connection Description Dialog Box 8 Press OK to accept the information 9 The Connect To dialog box opens next Select the serial...

Страница 96: ...rate setting of 9600 is being used here as an example In order for this setting to work your computer serial port must be set to send receive at 9600 baud If your computer serial port is set to send...

Страница 97: ...for the Flow Control option Leave the Parity Check and Carrier Detect options off Select OK to close the dialog box and accept the settings 13 Open the Transfer menu and select Capture Text A Capture...

Страница 98: ...through the data quickly 18 Press the ENTER key and select the stop time All entries between and including the start and stop entries will be sent to the computer The logged data will begin to appear...

Страница 99: ...ch settings are very important and must be set correctly in order to correctly communicate with 2020 2020 will always be the serial device so the data flow direction will be serial to parallel To conf...

Страница 100: ...SW5 SW6 None Off Off Table 6 DIP Switch Settings for Parity 6 Switch 7 sets the Handshake mode Off Xon Xoff On DTR Set the Handshake mode to Xon Xoff 7 Use switch 8 to set the data flow direction to...

Страница 101: ...ur printer using the serial to parallel converter 1 Turn 2020 off NOTE You must turn the instrument off before connecting or disconnecting the printer cable 2 Unplug the converter from the AC outlet 3...

Страница 102: ...lable and has been aligned properly 8 Press the ENTER key Select Log Prnt and then select Grph or Tabl 9 Select a start time using the Next and Prev keys Hold down the Next and Prev keys to scroll thr...

Страница 103: ...e dilution probe The dilution probe Part No MX350013 attaches to the underside of 2020 and allows 2020 to read concentrations up to 20000 ppm isobutylene equivalent units A metering valve controls the...

Страница 104: ...020 Charcoal Filter Figure 20 Dilution Probe Layout 2 Finger tighten the nut Then use a wrench to tighten the nut 3 4 of a turn further This will compress the ferrules onto the tube 3 Slide the inlet...

Страница 105: ...ion with the Dilution Probe 2020 must be calibrated in order to display concentration in units equivalent to ppm Occasionally clean ambient air will be suitable as zero air If there is any doubt use a...

Страница 106: ...remove the hex screw 5 Insert the tube from the dilution probe inlet into the adapter tubing from the flow match regulator If you are using gas bags connect the gas bag adapter to the dilution probe...

Страница 107: ...et 3 If you are calibrating directly from the calibration tank Insert the 2020 sample probe into the adapter tubing of the regulator Ensure the calibration gas cylinder is upright and open the regulat...

Страница 108: ...ord Part No MX350004 to the 2020 AC adapter jack on the rear of the instrument 3 Connect the other end of the DC power cord to the cigarette lighter in the car 4 Turn the instrument on again by pressi...

Страница 109: ...lamp window material The 11 7 eV lamp window material is lithium fluoride LiF LiF is composed of two light elements which are easily disrupted within the crystal lattice by the UV light generated by...

Страница 110: ...2020 Software Manual 108 Due to the lamp window limitations the lifetime of the 11 7 eV lamp is restricted and it must be used sparingly according to the following instructions...

Страница 111: ...ulator on page 70 All response factors are invalid when an 11 7 eV lamp is installed You must set the response factor for the current cal memory to 1 4 Recalibrate the instrument every 15 minutes of o...

Страница 112: ...Power Cord Part No MX350004 Use only the AC adapter specified for use with 2020 Using another AC adapter will result in damage to the battery pack the off line charger or the adapter Charging from an...

Страница 113: ...k to indicate it is charging red light when first plugged in The LED will turn green as the battery charges 8 When the battery pack is fully charged remove the AC adapter first from the wall outlet th...

Страница 114: ...scharged battery pack will take approximately 4 hours 7 It is normal for a fully charged battery pack to indicate it is charging red light when first plugged in The LED will turn green as the battery...

Страница 115: ...Routine Maintenance 5...

Страница 116: ......

Страница 117: ...lf off before the battery pack becomes critically low WARNING Do not remove or recharge the battery pack in a hazardous location Upon return from field work charge the battery packs as outlined in Bat...

Страница 118: ...month to avoid loss of data Maintenance of the UV Lamp Removing and Replacing the UV Lamp NOTE Do not remove or replace the UV lamp in a hazardous location To remove the UV lamp from your instrument 1...

Страница 119: ...he UV lamp may not fit into the lampholder Do not force the lamp into the lampholder See Troubleshooting on page 132 6 Replace the lamp housing cover Tighten the cover down with the multi tool Do not...

Страница 120: ...As a guide clean the window every 24 hours of operation WARNING Do not remove the UV lamp in a hazardous location The UV lamp cleaning kit Part No MX380336 includes aluminum oxide powder 3 0 micron p...

Страница 121: ...essive force onto the window since window can be permanently damaged by misuse 5 Continue cleaning for approximately one minute 6 Dampen a new cotton swab with methanol and remove any trace amounts of...

Страница 122: ...ly clean the 11 7 eV lamp window Replacing the Sample Inlet Filter 2020 is equipped with a combined dust and water filter to reduce detector contamination As the filter collects dust 2020 s inlet flow...

Страница 123: ...ic before installing the filter in 2020 2 Remove the Teflon Polypropylene filter and install the new filter Part No MX396000 or MX396015 Place the filter so that the Teflon side is facing down in the...

Страница 124: ...background when the filter requires replacement To replace the charcoal filter 1 Loosen but do not remove the 1 4 compression fitting on the dilution probe zero air inlet and remove the charcoal filt...

Страница 125: ...ter housing with another 9 16 wrench Be careful not to lose the filter spring 4 Remove the spring and filter Install the new filter Part No MX395000 open end first Press the filter into place so it wi...

Страница 126: ...2020 Software Manual 124...

Страница 127: ...Troubleshooting 6...

Страница 128: ......

Страница 129: ...tion ready 1 A description of what happened and what you were doing when the problem occurred 2 Any corrective action that you have tried 3 The exact wording of any messages that appeared on the displ...

Страница 130: ...t air is contaminated Action If you are unsure about the quality of ambient air use a supply of commercial zero grade air to zero 2020 See General Information on page 69 Falt2 Signal from span gas is...

Страница 131: ...has not started immediately Action This fault may be seen momentarily when 2020 is first turned on Allow 60 seconds for the UV lamp to start and the fault to clear Action Turn 2020 off and then on ag...

Страница 132: ...UV lamp in a hazardous location Action Install a new UV lamp See Removing and Replacing the UV Lamp on page 116 Cause You are using a lamp with a getter The getter is a glass wool plug in the tail of...

Страница 133: ...d on the underside of 2020 is not obstructed Cause UV lamp is too wide causing flow to be restricted WARNING Do not remove or replace the UV lamp in a hazardous location Action If you have a UV lamp w...

Страница 134: ...A reading equivalent to the calibration gas should be displayed If not contact the Service Department WARNING Do not remove or recharge the battery pack in a hazardous location Action Disconnect the...

Страница 135: ...s entered 2020 s response is not specific to any one compound The reading displayed represents the total concentration of all ionizable compounds in the sample Cause Detector is leaking A decrease in...

Страница 136: ...icted WARNING Do not remove or replace the UV lamp in a hazardous location Action If you have a UV lamp with a white serial number label it is possible that the lamp is too wide for the lampholder Con...

Страница 137: ...incompatible with 2020 Contact the Applications Department for more information Problem Erroneously high readings Cause Sampling environment is extremely humid Action Water vapor may contain mineral s...

Страница 138: ...calibration gas and concentration for each Cal Memory See Programming the Cal Memories on page 76 Cause You are not using the correct Cal Memory Action Select the correct Cal Memory for your applicat...

Страница 139: ...e Department Problem Date and time settings are not retained Cause The battery pack has been removed before 2020 was turned off WARNING Do not remove or recharge the battery pack in a hazardous locati...

Страница 140: ...change in signal level The detector and associated electronics may become temporarily saturated Action Wait a few seconds for the status to return to normal PIDs are designed to detect relatively low...

Страница 141: ...blank Cause Battery pack is critically low WARNING Do not remove or recharge the battery pack in a hazardous location Action Replace the battery pack or connect 2020 to the AC adapter Cause The batte...

Страница 142: ...d WARNING Do not replace the inlet filter in a hazardous location Action Replace inlet filter See Replacing the Sample Inlet Filter on page 120 Cause Inlet filter has not been installed properly Actio...

Страница 143: ...on Ensure the sample outlet in not obstructed in any way Cause Pump has been damaged Action Contact the Service Department Problem Liquid has been aspirated Cause 2020 has been exposed to a solvent th...

Страница 144: ...converter and 2020 off before connecting the cables Cause Mechanical problem with the printer Action Make sure that the printer is plugged in and turned on Action Make sure that the printer is on line...

Страница 145: ...tic line feeds when receiving a carriage return These switches should be set to carriage returns only which is normally the factory default setting Some printers have switches or control panels that e...

Страница 146: ...o the same value Problem Printer will not print Cause Problem with the printer Action Refer to the corrective action on page 142 Cause Serial card is installed in the printer Action If a serial card i...

Страница 147: ...s and a Centronics 36 pin male connector at each end This cable is supplied with the converter When you are connecting the parallel side of the converter to a Centronics 36 pin male connector use a st...

Страница 148: ...Low Pull High 13 Select Pull High Pull Low 14 Auto FF Not Used Not Used 15 NC Not Used Not Used 16 Ground 17 NC Not Used Not Used 18 NC Not Used Not Used 19 30 Ground 31 Init Not Used Out 32 Error Pul...

Страница 149: ...Serial to Parallel Converter Serial Port Signals NOTE A DB 25 female connector is sometimes a parallel port Do not connect the serial port of the converter to a parallel port Data Bit 7 Acknowledge B...

Страница 150: ...e a 25 pin connector on a computer The 25 or more pin female connector is usually a parallel port However there are exceptions to this rule 2020 cannot be connected to a parallel port unless you are u...

Страница 151: ...n combined into one which is supplied in the 2020 cable kit See Figure 27 A computer with a 25 pin serial port should not require a null modem but will require a gender changer A gender changer will c...

Страница 152: ...Male Serial Port 2020 Printer Cable 2020 Gender Changer Figure 28 Connecting 2020 Using the Gender Changer 3 Ensure all hardware is working properly Use a printer to test both 2020 and the computer Co...

Страница 153: ...Troubleshooting 151...

Страница 154: ......

Страница 155: ...Technical Description 7...

Страница 156: ......

Страница 157: ...a and setup information entered into the microprocessor s memory are retained when 2020 is turned off A pump continuously pulls the air under test through 2020 s PID The PID converts the concentration...

Страница 158: ...ables present For special applications gases other than isobutylene can be used to calibrate 2020 Photoionization Detector 2020 s PID is shown in Figure 30 The PID measures the concentration of photoi...

Страница 159: ...ctric field between the repeller electrode and the collector electrode The ions move in the electric field generating a current which is proportional to the concentration of the ionized molecules in t...

Страница 160: ...020 readings are always relative to the calibration gas After calibration with isobutylene 2020 will respond directly in units equivalent to isobutylene Most volatile organic compounds will be detecte...

Страница 161: ...combined to form a 15 minute average Once every minute the oldest of the 15 samples is replaced with a new one minute average This moving average provides a 15 minute average with a one minute update...

Страница 162: ...both a background and a sample entry in the datalogger 2020 stores these numbers along with the highest priority instrument status and the most recent time and date Recorded data can also be printed...

Страница 163: ...Appendices 8...

Страница 164: ......

Страница 165: ...adouts and soft key display Meter Display 4 digit 7 segment display for real time concentration readout Datalogger memory 16 kilobytes or 1000 entries Serial output RS 232 9600 baud 8 data bits with n...

Страница 166: ...F Operating 0 to 100 relative humidity humidity range non condensing Operating concentration range 0 5 to 2000 ppm isobutylene Accuracy 10 or 2 ppm whichever is greater Precision 1 of calibration cal...

Страница 167: ...e not warranted PerkinElmer and its vendors disclaim any implied warranty of merchantability or fitness for a particular purpose PerkinElmer and its vendors will not be liable for any indirect special...

Страница 168: ...6 Canada Applications Department 1 800 762 4002 U S 1 800 561 4646 Canada Customer Service 1 800 762 4002 U S 1 800 561 4646 Canada In the USA PerkinElmer 761 Main Avenue Norwalk CT 06859 0010 Tel 800...

Страница 169: ...50 Hz The voltage rating will depend on the voltage in your area Contact your PerkinElmer representative to obtain more information Calibration Gas Supplier The recommended span gas is isobutylene in...

Страница 170: ...he gas bag about half full and then close the regulator 4 Open the syringe port and empty the bag Flush the bag a few times with the calibration gas and then fill it 5 To close the gas bag valve turn...

Страница 171: ...wise For replacement septa order Teflon bonded to Silcone diameter 375 9 5 mm Figure 31 Using the Gas Bag Response Factors The response factors were determined over the range 5 500 ppm based on a 100...

Страница 172: ...tors results are expected to be accurate to 10 ppm or 25 whichever is greater Compound Response Factor Acetaldehyde 10 5 Acetone 1 2 Acetophenone 2 0 Acrolein 2 Propenal 4 0 Acrylic Acid 10 9 Acryloni...

Страница 173: ...oethylene 0 8 trans 1 2 Dichloroethylene 0 4 N N Dimethylformamide DMF 0 8 1 4 Dioxane 1 3 Epichlorohydrin 6 5 Ethanol 8 8 Ethyl Acetate 3 8 Ethyl Acrylate 2 3 Ethylbenzene 0 5 Ethyl Cellosolve 2 Etho...

Страница 174: ...0 1 Methacrylic Acid 000 Methyl n Amyl Ketone 2 heptanone 2 1 Methyl Bromide Bromomethane 1 6 Methyl Chloroform 1 1 1 TCA 000 Methylene Chloride 000 Methyl Ethyl Ketone 2 Butanone 0 8 Methyl Isobutyl...

Страница 175: ...Tetrahydrofuran 1 5 Therminol 000 Toluene 0 5 1 1 1 Trichloroethane 000 Triethanolamine ND Trichloroethylene TCE 0 5 Trimethylamine 0 9 1 2 4 Trimethyl Benzene 2 3 1 3 5 Trimethyl Benzene 1 7 Vinyl A...

Страница 176: ...ry is selected or which response factor is entered 2020 s response is not specific to any one compound The displayed reading represents the total concentration of all ionizable compounds in the sample...

Страница 177: ...ET 3 8 Ethyl Acrylate ETHYACRY 2 3 Ethylbenzene ETBENZEN 0 5 Ethyl Cellosolve 2 Ethoxyethanol ETHCELLO 1 3 Ethyl Ether Diethyl Ether ETHETHER 1 2 Ethyl Mercaptan Ethanethiol 4 ETHMERC 0 6 Ethylene 5 E...

Страница 178: ...1 Propionaldehyde Propanal 3 PROPANAL 14 8 n Propyl Acetate nPROACET 3 1 Propylene 5 PROPYLEN 1 2 Propylene Oxide PROPOXID 5 8 Styrene STYRENE 0 4 Tetrachloroethylene PCE PCE 0 5 Tetrahydrofuran THF 1...

Страница 179: ...or monitoring these compounds at ACGIH recommended levels 5 A 1000 ppm TWA has been established for those compounds which are Simple Asphyxiants and for which no exposure value exists 6 For those comp...

Страница 180: ...ual 178 3 Scott Specialty Gases Catalog 1994 4 National Institute for Occupational Safety and Health NIOSH Recommendations for Occupational Safety and Health Compendium of Policy Documents and Stateme...

Страница 181: ...Appendices 179...

Страница 182: ...r 25 100 105 Off Line Charger Operation 100 101 AC Plug 29 155 Accessories Computer 82 DC Power Cord 96 Dilution Probe 92 Off Line Charger 100 Printer 81 Serial to Parallel Converter 88 Standard 25 Ac...

Страница 183: ...9 100 101 105 Connector 29 100 101 Cover 28 Critically Low 105 129 Disposal 25 Disposal 25 Handling 24 LED 30 Life 31 53 Not Connected 129 Off Line Charger 100 Recycling 25 Removing 28 92 127 129 Repl...

Страница 184: ...inter 81 132 Serial to Parallel Converter134 138 Compound Non Ionizable 125 Threshold Limit Values 24 27 61 94 Compressed Gases Handling 23 Computer Communication 82 90 138 Download Stored Data 83 Ser...

Страница 185: ...Disp Functions 53 Key 45 53 Display Default 39 Function Map 53 is Blank 129 Meter 45 151 Resolution 35 Specifications 151 Status 151 E Edit 49 Elog Status 49 ELog Status 41 EXIT Key 37 Exposure to Exc...

Страница 186: ...ange 152 HyperTerminal 83 I Inlet Connection 151 Filter 112 Filter Specifications 152 Flow Rate 130 152 Replacing Filter 110 Installation Battery Pack 29 Charcoal Filter 93 Instrument Status 40 Interv...

Страница 187: ...4 147 Peak 44 147 STEL 43 TWA 43 147 Model 2020 22 Function Map 38 Overview 31 Response69 123 126 158 162 Specifications 151 Troubleshooting 122 Warranty 153 MSDS 24 27 61 Multi Tool 106 N Next Key 73...

Страница 188: ...Damaged 131 Fault 120 Key 45 Labored 110 Options 45 R Range Key 50 Operating Humidity 152 Operating Temperature 152 References 165 Regulator Calibration Gas 26 65 CGA 26 66 Connecting 24 62 Construct...

Страница 189: ...y 63 68 Specifications 151 Calibration Gas 26 Computer 27 Isobutylene Calibration Gas 26 Printer 27 Status Display Specifications 151 Instrument 40 Status Display 35 STEL Alarm 42 Calculations 147 Des...

Страница 190: ...lacing 106 Technical Description 144 Troubleshooting 119 121 124 130 131 V Valve Gas Bag 156 Metering 92 95 Vapor Corrosive 131 Water 125 W Warnings 22 Warranty 153 Water Exposure To 110 Filter 110 Va...

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