PureAire 99072 Скачать руководство пользователя страница 43 | Manualshive

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PureAire Monitoring Systems, Inc.

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10.

Insert the pressure compensation plug into the port.

PRESSURE

COMPENSATION

PORT

11.

Reinstall the sensor as outlined in section 6.1.2.

NOTE:

When storing the sensor cell never store the sensor cell horizontal with the Pressure

Compensation Plug positioned down or store the sensor cell upside down. This can cause the
electrolyte to leak from the sensor cell pressure compensation plug.

Example of proper membrane Example of wrinkled membrane

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Содержание 99072

Страница 1: ...or Instruction Manual Part number 99088 0 10ppm 99072 0 20ppm PureAire Monitoring Systems Inc 1140 Ensell Road Lake Zurich IL 60047 Phone 847 726 6000 Fax 847 726 6051 Toll Free 888 788 8050 E mail info pureaire net Web Pureairemonitoring com ...

Страница 2: ...ur experience innovative products and commitment to service will satisfy your specific monitoring needs now and in the future Our growth is a result of our total commitment to supporting our customers We re available 24 hours a day 7 days a week to help you when you need us Our 24 hour Emergency phone number is 847 420 3814 We can provide field service preventative maintenance programs and trainin...

Страница 3: ...PureAire Monitoring Systems Inc 2 President ...

Страница 4: ...ere normal use is defined as zero gas concentration with an occasional excursion If the monitor is continuously exposed to methyl bromide or if the monitor is exposed to very high short term gas concentrations it will require more frequent sensor cell recharges and complete pyrolizer filament and pump replacement Exposing the methyl bromide monitor to continuous levels of sulfur dioxide SO2 from p...

Страница 5: ...ite Requirements 14 3 2 Mounting 14 3 3 Sensor Installation 14 3 4 Wiring 15 3 5 Initial Startup 16 4 Air Check Methyl Bromide Programming 17 4 1 Control Panel Overview 17 4 2 Joystick Operation 17 4 3 Program Flow Chart 18 4 4 Entering the Password 22 4 5 Changing the User Password 23 4 6 Entering the Menus 26 5 Maintenance Calibration 37 5 1 Routine Maintenance Schedule 37 5 2 Loss of Power Indi...

Страница 6: ...r resistant housing that may be wall mounted and is designed to require as little space for installation as possible The system has the following features 24 VDC operation Built in pyrolizer Integral digitally controlled sampling pump and flow system Local digital display User selectable dual level alarm and system fault relays 4 20 mA output Renewable long life electrochemical sensor cell Supervi...

Страница 7: ...h corner of the enclosure Cover Fastening Screws Captive Philips head plastic screws used to fasten the front cover to the base of the methyl bromide monitor There is one on each corner of the front cover NOTE Please do not over tighten the screws as the Phillips head will strip Cable Strain Relief This is the opening in the transmitter housing for connecting the 4 20 mA output 24 VDC power cable ...

Страница 8: ...r selecting and adjusting the built in menus for alarm threshold settings relay state alarm delay etc 3 Alarm Fault LED s These LED s illuminate when a gas concentration alarm or instrument fault is detected NOTE The flow rate is factory set and is continuously regulated via a built in flow sensor Flow rate is factory set for sampling distances up to 100 feet Field adjustment cannot be performed L...

Страница 9: ...minal block NOTE The flow rate is factory set and is continuously regulated via a built in flow sensor 5 Flow Chamber The converted gas from the pyrolizer is introduced to the gas sensor in this chamber Sample flow into the chamber is continually monitored If the sample pump fails the system fault relay is activated 6 Methyl Bromide Sensor Cell A renewable electrochemical sensor cell Typical life ...

Страница 10: ...DC power and 4 20 mA analog output connection is made 1 2 6 Alarm Relay Board 1 Power Analog output Terminal Block Fuse Field replaceable Common Common mA output 24 VDC 24 VDC 9 Flow Sensor Pump Connector Alarm Relay 2 Alarm Relay 1 Fault Relay NC C NO NC C NO NC C NO Remote Reset Sensor cell connector terminated at the factory ...

Страница 11: ...ng supplied to the monitor Yellow Status LED Confirms the filament drive board is operational Blue Fault Status LED Flashes to indicate various system faults When not in fault the Blue LED remains illuminated continuously Pump and Pyrolizer Drive Assembly Pyrolizer Drive Board Main 24VDC Power Connector Sample Pump 24VDC Pin 6 Common Pin 5 NOTE DO NOT Remove the shorting pin connected to pins 5 an...

Страница 12: ... Operating Temp 14 to 86 F 0 to 30 C consult PureAire for lower or higher operating temperatures Humidity Typically 20 to 95 RH Warranty The warranty is limited to repairing or replacing the instrument or part thereof for a period of one 1 year after shipment when in our opinion the repair or replacement is covered by this warranty Any defective equipment must be returned prepaid to the PureAire M...

Страница 13: ... 4 20 mA Relay Output Dual level user selectable alarm relays and one fault relay Rated 2amps 30VDC 2amps 250VAC 2 4 Electrical Requirements Power 24 VDC external power NOTE Must be a regulated 24VDC Power Supply Consumption 2 0 amps 2 5 Physical Characteristics Dimensions 10 W x 7 0 H x 7 0 D inches 254 x 178 x 178 mm Weight 10 pounds 4 5 kg Enclosure Type NEMA 4X wall mounted enclosure Not for u...

Страница 14: ...Normal Alarm 2 Normal Do you want to alarm at a level higher normal or lower inverted than the alarm threshold Alarm Delay Alarm 5 seconds How long do you want to wait until the alarms activate Zero Suppression 0 3ppm At what level do you want to see the initial gas concentration reading Set Alarm Hysterisis Alarm 1 0 0 ppm Alarm 2 0 0 ppm For use when using the monitor for control It is recommend...

Страница 15: ...ing and should be installed no closer than 36 inches 915 mm above floor level If mounted outdoors keep direct sunlight off of the enclosure 3 3 Sensor Installation IMPORTANT Be careful not to turn the sensor or touch the membrane on the bottom of the sensor during installation CAUTION The target gas is factory programmed and cannot be adjusted in the field Failure to install the correct sensor in ...

Страница 16: ...regulated 24VDC Power Supply Failure to use a regulated 24VDC power supply will void the warranty The 24 VDC power in connections are made on the 6 pin terminal connection located on the Power Supply PCB These connections are made as follows Pin Connection 6 DC 24V 5 Common 4 Shield 3 4 2 Alarm Relays The Air Check monitor incorporates two gas concentration alarm relays and one system fault relay ...

Страница 17: ...izer Heater Fault will scroll on the top line F02 00 will display on the bottom line and the Yellow Fault LED will still remain illuminated Approximately 30 seconds later the Pyrolizer Heater Fault and F02 fault message and will clear and CH3Br will display on the top line a ppm gas concentration will display on the bottom line of the digital display and the Yellow Fault LED will turn off NOTE Aft...

Страница 18: ...oystick Operation The Air Check Methyl Bromide monitor uses a 4 position joystick with a center pushbutton for selecting menus and changing values The joystick is programmed to standard protocol as follows NOTE The joystick has a built in delay to prevent accidental tampering of the menus Deliberate entries are required P r e v i o u s s Plus Pushing the joystick in this direction increases the va...

Страница 19: ... Z e r o 128 Set 20mA S p a n 098 CH3Br 2 0 9 Enter P a s s w o r d A Force loop Not Available Set Formats Format Relay 2 R e l a y 2 Format Relay 1 Normal Invert Normal Invert Format Fault Relay F a u l t R e l a y Normal Invert NOTE All numerical values shown are only examples and are not Factory Defaults ...

Страница 20: ... l a r i t y Normal Alarm Delay Set Audio Alarm Not available PassCode OK Not Available Set Latching Relay 2 Set Latching Set Latching R e l a y 1 Nonlatch Latching Nonlatch Latching Set Latching Audio NOTE All numerical values shown are only examples and are not Factory Defaults N O T E Z e r o s u p p r e s s Invert 19 ...

Страница 21: ...ppm Set Relay 1 A l a r m T h r e s h o l d 1 0 PPM Set Relay 2 A l a r m T h r e s h o l d 5 0 PPM Set Audio T h r e s h o l d Not Available Set Alarm Thresholds PassCode OK Set Alarm 1 H y s t e r i s i s 0 0 ppm Set Alarm 2 H y s t e r i s i s 0 0 ppm Set Audio A l a r m H y s t e r i s i s Not Available Set Alarm Hysterisis ...

Страница 22: ...U s e r P a s s w o Enabled n a b l e d Enable Auto Zero Cal Z n a b l e A u t o C a l Start Zero Cal t a r t Z e r o C a l Set Module Zero e t M o d u l e Z e r o 00 o t A v a i l a b l e Enable Zero Tracker n a b l e Z e r o T r a c k i n g Not Available o t A v a i l a b l e Not Available o t A v a i l a b l e Enter New User Password t A v a i l a b l e Disabled i s a b l e d Not Available o t ...

Страница 23: ...g the joystick up or down will permit you to scroll through the alphanumeric characters 3 Push the joystick up or down to enter the first digit The display is an alphanumeric display and toggles from A through Z followed by 0 to 9 The character to be entered will flash 4 Push the joystick again to the right to select the second entry Push the joystick up or down to select the second digit The char...

Страница 24: ...ssword and the following explains how to change the password 1 Push the joystick down to access the Manage Passwords Menu Manage Passwords will scroll on the first line of the digital display The second line will still display the current oxygen level 2 Push the joystick to the right to enter the input screen Enter New User Password will scroll on the first line of the digital display 3 Push the j...

Страница 25: ...rd entry Push the joystick up or down to select the third and final digit The character being entered will flash and the first and second characters entered will remain lit You are now ready to enter the 3 digit password 7 Push the joystick in the center to enter the password This will display the next command Re Enter New Password 8 Push the joystick to the right to enter the input screen The let...

Страница 26: ...er Password Screen You ll need to repeat steps 2 through 11 If you do not enter the password correctly the monitor remembers the last password that was properly input If you misplace or loose your password contact PureAire with the monitors DTM for instructions on recovering your password The DTM is displayed by moving the joystick to the left 4 5 1 Enable User Password This menu permits the user ...

Страница 27: ...r to a volt meter to read the mA output Please consult PureAire for more information From this main menu pushing the joystick to the right will select the sub menu and the digital display will scroll the following This is the menu at which to adjust the 4mA output being sent from the Air Check Monitor To change this value push the joystick right to display the 4 mA setting The display will indicat...

Страница 28: ...ges Press ENTER to accept the value Push the joystick to the left brings you back to the pervious Main menu The digital display will scroll the following Push the joystick down to access the next sub menu Force loop will scroll NOTE This menu item is not available on the Methyl Bromide monitor Push the joystick to the left brings you back to the pervious menu The digital display Will scroll the fo...

Страница 29: ...Indicate NORMAL Pushing the joystick down will change the relay state from NORMAL to INVERT Press ENTER to accept the value After entering the relay state the display will default back to the Set Formats menu The display will scroll the following From this main menu pushing the joystick to the right will select the sub menu and the digital display will scroll the following Push the joystick down t...

Страница 30: ...l display will scroll the following Push the joystick twice to select the fault relay to be adjusted The display will scroll Format Fault Relay This is the menu at which to adjust the fault alarm relay state on the Air Check Monitor To change this value push the joystick right to display the relay state The display will Indicate NORMAL Pushing the joystick down will change the relay state from NOR...

Страница 31: ...arity To access this menu from the Set Formats menu push the joystick down to display the Set Alarm Threshold Polarity adjustment menu This will scroll on the digital display Push the joystick right to access the first sub menu Set Alarm 1 Polarity will scroll on the display This is the menu at which to adjust the first level alarm polarity state on the Air Check Methyl Bromide Monitor To change t...

Страница 32: ...relay state from NORMAL to INVERT Press ENTER to accept the value After entering the relay state the display will default back to the Set Relay 2 Alarm Threshold menu The display will scroll the following Push the joystick down to access the next sub menu Set Audio Alarm Polarity will scroll on the display This is the menu at which to adjust the second level alarm polarity state on the Air Check A...

Страница 33: ...hen they are activated From this main menu pushing the joystick to the right will select the sub menu and the digital display will scroll the following This is the menu at which to adjust the first level alarm relay state on the Air Check Monitor To change this value push the joystick right to display the relay state The display will Indicate LATCH Pushing the joystick down will change the relay s...

Страница 34: ...G to NONLATCH Press ENTER to accept the value After entering the relay state the display will default back to the Set Latching menu The display will scroll the following From this main menu pushing the joystick to the right will select the sub menu and the digital display will scroll the following Push the joystick twice to select the Audio Alarm relay to be adjusted The display will scroll Set La...

Страница 35: ...hing the joystick up increases the value and pushing the joystick down decreases the value Press ENTER to accept the value After entering the alarm delay the display will default back to the Alarm Delay menu and the display will scroll the following NOTE The alarm delay is only available for alarms 1 and 2 There is no delay for the fault relay Any system fault will immediately activate the Fault R...

Страница 36: ...the first sub menu and the digital display will scroll the following Set Relay 1 Alarm Threshold This is the gas concentration at which the instrument s first level alarm will be activated To change the displayed value push the joystick to the right to display the first level alarm setting The display will indicate a value between 0 0ppm and full scale Pushing the joystick up increases the value a...

Страница 37: ...xt sub menu Set Audio Alarm Threshold will scroll on the digital display NOTE The audio alarm option module is not available for Methyl Bromide 4 6 8 Set Alarm Hysterisis This function was designed for PureAire s Oxygen deficiency monitor when used as a control system NOTE The Hystersis function is permits a user to set the dead band for both Alarms 1 and 2 and is not applicable to the Methyl Brom...

Страница 38: ...4 mA Gas Concentration Alarm Relays De energized factory default System Fault Relay De energized factory default 5 1 2 Recommended Routine Maintenance Schedule Routine Visual Checks flow fault LED Quarterly Flow rate and power status Continually supervised Flow is constantly monitored and adjusted by the internal CPU Automatic hourly system integrity verification Electrolyte Replacement p n 84004 ...

Страница 39: ...Installation IMPORTANT Be careful not to turn the sensor or touch the membrane on the bottom of the sensor during installation Oil on your fingers can block the small pores on the membrane surface 1 Remove the sampling system front cover by unfastening the 4 plastic captive screws 2 Remove the sensor shorting plug or battery if supplied 3 Plug the methyl bromide sensor into the flow chamber inside...

Страница 40: ...emain in the sensor until the pressure compensation plug is removed Remove the plug to release the electrolyte into the beaker PRESSURE COMPENSATION SCREW BEAKER 4 Hold the sensor in your hand with the sensing electrode up Hold a piece of paper tissue over the pressure compensation port with your thumb Pour 10 cc s of fresh electrolyte into the sensor and rinse Discard into the beaker SENCING ELEC...

Страница 41: ...VIEW 7 Place a new membrane on the sensor with the bead of electrolyte between the electrode and the membrane ENLARGED VIEW MEMBRANE White Membrane P N M 4400M Caution A GREEN tinted paper separates each membrane DO NOT USE THIS PAPER M 4400M Membrane Color is White Electrolyte P N 84004 NOTE If reusing the old O ring and Silicon sheet please dry them thoroughly before reinstalling CH3Br sensor ce...

Страница 42: ... response may be affected BOX NUT RETAINER RING Hold the sensor in your hand with the electrode down Pour fresh electrolyte in until it reaches the MAX mark PRESSURE COMPENSATION PORT ELECTROLYTE LEVEL ENLARGED VIEW NOTE MAX level differs from sensor to sensor 9 Wipe the pressure compensation port and its surrounding area with a dry paper tissue PRESSURE COMPENSATION PORT PAPER TISSUE NOTE The Met...

Страница 43: ...nsor as outlined in section 6 1 2 NOTE When storing the sensor cell never store the sensor cell horizontal with the Pressure Compensation Plug positioned down or store the sensor cell upside down This can cause the electrolyte to leak from the sensor cell pressure compensation plug Example of proper membrane Example of wrinkled membrane ...

Страница 44: ...rchase directly from Absolute Accuracy Ph 281 840 0781 Purchase directly from Industrial Scientific Ph 800 338 3287 Purchase directly from SKC Ph 724 941 9701 For higher range monitors please use order span gas concentrations that equal approximately the full scale value 5 4 2 Initial Preparation NOTE If the instrument is connected to a controller set the controller to Standby mode to avoid accide...

Страница 45: ...mide monitor Menu 4 is the only menu used during calibration and sensor adjustment 1 Set sensor zero 2 Enable Zero Cal 3 Start Zero Cal 4 Set Module Zero 5 Enable Zero Tracker To adjust the monitors zero reading Select Push the joystick down to select the Set Module Zero menu Set Module Zero will scroll Push the joystick to the right to enter the Zero adjustment mode To reset the zero Press ENTER ...

Страница 46: ... flow is not blocked 4 Connect the flexible tubing from the regulator to the inlet of the particulate filter Expose the methyl bromide monitor to span gas for three 3 minutes Adjust the display reading to the span gas by pushing the joystick up or down to set the concentration value on the PPM display 5 Press ENTER to accept the calibration value 6 After calibration disconnect the span gas from th...

Страница 47: ...tems Inc 46 Methyl Bromide Waste Gas Bag 232 05A Bromomethane span gas and On Demand Regulator Span Gas 90202256 Regulator 18102509 Joystick for adjusting span Push UP to increase the reading and DOWN to decrease the reading ...

Страница 48: ...he Sample Inlet and Exhaust connectors The Air Check monitor has 4 ea Front Cover captive fastening screws on each corner of the front cover Use a Phillips head screwdriver to unfasten the screws to remove the front cover Please Do Not Over tighten Sample Exhaust Sample Inlet Electrical Cable connector 47 ...

Страница 49: ...ng the tygon sample tubing supplied Insure the correct flow by aligning the arrow towards the inlet connector NOTE If the filter gets saturated with water droplets it will diminish the response of methyl bromide When sampling from cold refrigerated environments please replace the filters frequently The pyrolizer insulation temperature can exceed 150F and can cause burns if touched Please power dow...

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