user manual september 2010, edition 5
TRANSCRIPT
701127
MET ONE A2432Manifold System
USER MANUAL
September 2010, Edition 5
© HACH Company, 2008, 2009, 2010. All rights reserved. Printed in the U.S.A.
Table of Contents
Section 1 Specifications.................................................................................................................... 5Section 2 General Information ......................................................................................................... 7
2.1 Safety information ........................................................................................................................ 72.1.1 Use of hazard information................................................................................................... 72.1.2 Precautionary labels ........................................................................................................... 72.1.3 Laser safety informations.................................................................................................... 82.1.4 Electrostatic Discharge (ESD) considerations ................................................................... 8
2.2 Certification .................................................................................................................................. 92.3 General product information ........................................................................................................ 9
2.3.1 MET ONE A2342 particle counter..................................................................................... 102.3.2 Manifold ............................................................................................................................ 102.3.3 Manifold theory of operation ............................................................................................. 10
2.4 Manifold controller...................................................................................................................... 112.5 Applications of the MET ONE A2342 manifold system.............................................................. 11
Section 3 Installation........................................................................................................................ 133.1 Unpack the instrument ............................................................................................................... 133.2 Setup the MET ONE A2342 manifold system............................................................................ 143.3 Tubing connections.................................................................................................................... 153.4 Electrical connections ................................................................................................................ 16
3.4.1 Electrical safety information .............................................................................................. 163.5 Power up.................................................................................................................................... 17
Section 4 Operation.......................................................................................................................... 194.1 User display ............................................................................................................................... 194.2 Programming parameters .......................................................................................................... 20
4.2.1 Default settings ................................................................................................................. 214.3 Program a sampling routine....................................................................................................... 21
4.3.1 Clear a sampling routine ................................................................................................... 214.3.2 Program a simple sampling routine .................................................................................. 21
4.4 Program a detailed sampling routine ......................................................................................... 224.5 Enable all ports .......................................................................................................................... 234.6 Reset the default sampling routine ............................................................................................ 234.7 Set the alarm limits .................................................................................................................... 234.8 Start the sampling routine .......................................................................................................... 24
Section 5 Maintenance .................................................................................................................... 255.1 Clean and maintain the manifold ............................................................................................... 255.2 External cleaning ....................................................................................................................... 26
Section 6 Troubleshooting ............................................................................................................. 276.1 Common problems..................................................................................................................... 27
Section 7 Replacement Parts and Accessories......................................................................... 297.1 Accessories................................................................................................................................ 29
Section 8 Contact information ....................................................................................................... 31Section 9 Limited Warranty ............................................................................................................ 32Appendix A Scan Table Download Format ................................................................................. 33
A.1 Scan table download format ...................................................................................................... 33Appendix B Optional Accessories................................................................................................ 35
B.1 Vacuum pump ........................................................................................................................... 35B.2 Isokinetic probes........................................................................................................................ 35B.3 Tubing........................................................................................................................................ 35
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Table of Contents
Index ......................................................................................................................................................37
4
Section 1 Specifications
Specifications are subject to change without notice.
Environment
Operating temperature 12 to 41 °C (55 to 105 °F)
Operating humidity 10% to 85% relative humidity, non-condensing
Storage temperature –40 to 71 °C (40 to 160 °F)
Storage humidity Up to 98% relative humidity, non-condensing
Pollution degree/Installation Category 2/II
Maximum altitude 2000 meters (6560 ft)
Operating location Indoor use only
Manifold
Number of ports 32
Sample tubing ½" OD, 3/8" ID
Size (W x H x D) 305 x 318 x 406 mm (12" x 12.5" x 16")
Weight 12.2 kg (26.9 lb)
Manifold controller
Power 100–120 VAC, 750 mA max (T 1.0A fuse) or 220–240 VAC, 375 mA max (T 0.5A fuse) (specify voltage when ordering), 50/60Hz
Size (W x H x D) 231 x 122 x 206 mm (9.1 x 4.8 x 8.1 in.)
Weight 3.1 kg (6.7 lb)
Program cycle Upto 100 steps
Particle counter (additional)
Data storage 400 samples, rotating buffer
Hold time 15 seconds minimum when manifold is attached
209E calculations On stored data
3-digit display Displays the port number (when the location light is on)
Compliance
Certification UL, CSA and IEC certified by ETL
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Specifications
6
Section 2 General Information
2.1 Safety informationRead this entire manual before one unpacks, sets up or operates this equipment. Pay attention to all danger and caution statements. Failure to do so could result in serious injury to the operator or damage to the equipment.
To make sure that the protection provided by this equipment is not impaired, do not use or install this equipment in any manner other than that specified in this manual.
Veuillez lire l'ensemble du manuel avant le déballage, le réglage ou la mise en fonctionnement de cet appareil. Prêtez attention aux prescriptions de danger, avertissements et mises en garde. Le non-respect de cette procédure peut conduire à des blessures graves de l'opérateur ou à des dégâts au matériel.
Assurez-vous que la protection fournie avec cet appareil ne soit pas compromise, n'utilisez pas ou n'installez pas cet appareil d'une autre façon que celle décrite dans ce manuel.
2.1.1 Use of hazard information
2.1.2 Precautionary labelsRead all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if not observed.
Lire toutes les étiquettes et tous les repères apposés sur l’instrument. Des personnes peuvent se blesser et le matériel peut être endommagé si ces instructions ne sont pas respectées.
DANGERIndicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.
DANGERIndique une situation de danger potentielle ou imminente qui, si elle n'est pas évitée, peut entraîner la mort ou des blessures graves.
WARNINGIndicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious injury.
AVERTISSEMENTIndique une situation de danger potentiel ou imminent qui, si elle n'est pas évitée, pourrait entraîner la mort ou des blessures graves.
CAUTIONIndicates a potentially hazardous situation that may result in minor or moderate injury.
ATTENTIONIndique une situation potentiellement dangereuse qui peut entraîner des blessures mineures ou modérées.
Important Note: Indicates a situation which, if not avoided, may cause damage to the instrument. Information that requires special emphasis.
Remarque importante : Indique une situation qui, si elle n'est pas évitée, peut provoquer des dommages à l'appareil. Informations nécessitant une insistance particulière.
This is the safety alert symbol. Obey all safety messages that follow this symbol to avoid potential injury. If on the instrument, refer to the instruction manual for operation or safety information.Ceci est le symbole d'alerte de sécurité. Se conformer à tous les messages de sécurité qui suivent ce symbole afin d'éviter des blessures potentielles. Si apposés sur l'instrument, se référer au manuel d'utilisation pour le fonctionnement ou les informations de sécurité.
This symbol indicates that a risk of electrical shock and/or electrocution exists.Ce symbole indique qu'il existe un risque de choc électrique et/ou d'électrocution.
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General Information
2.1.3 Laser safety informations• Laser safety—Class 1 Laser Product—complies with 21 CFR chapter 1, subchapter J.
• Evaluated and tested in accordance with EN 61010-1:1993, “Safety requirements for Electrical Equipment for Measurement, Control and Laboratory Use” and IEC 825-1:1993, “Safety of Laser Products.”
2.1.4 Electrostatic Discharge (ESD) considerations Important Note: To minimize hazards and ESD risks, maintenance procedures that does not require power to the analyzer should be performed with power removed.
Delicate internal electronic components can be damaged by static electricity, that results in degraded instrument performance or eventual failure.
Take the following steps to prevent ESD damage to the instrument:
• Before one touches electrical components of any instrument (such as printed circuit cards and the components on them) discharge static electricity from the body. This can be accomplished by touching an earth-grounded metal surface such as the chassis of an instrument or a metal conduit or pipe.
• To reduce static build-up, avoid excessive movement. Transport static-sensitive components in anti-static containers or packaging.
• To discharge static electricity from the body and keep it discharged, wear a wrist strap connected by a wire to earth ground.
• Handle all static-sensitive components in a static-safe area. If possible, use anti-static floor pads and work bench pads.
Electrical equipment marked with this symbol may not be disposed of in European public disposal systems after 12 August of 2005. In conformity with European local and national regulations (EU Directive 2002/96/EC), European electrical equipment users must now return old or end-of life equipment to the Producer for disposal at no charge to the user. Note: For return for recycling, please contact the equipment producer or supplier for instructions on how to return end-of-life equipment, producer-supplied electrical accessories, and all auxiliary items for proper disposal.
L'équipement électrique marqué de ce symbole ne devra pas être détruit dans les systèmes de destruction publics Européens après le 12 août 2005. En conformité avec les dispositions européennes locales et nationales (Directive EU 2002/96/EC), les utilisateurs européens d'équipements électriques doivent maintenant renvoyer au fabricant pour destruction les équipements anciens ou en fin de vie, sans frais pour l'utilisateur. Note: Pour le retour à des fins de recyclage, veuillez contacter le fabricant ou le fournisseur d'équipement pour obtenir les instructions sur la façon de renvoyer l'équipement usagé, les accessoires électriques fournis par le fabricant, et tous les articles auxiliaires pour une mise au rebut appropriée.
This symbol, if noted on the product, indicates the need for protective eye wear.Ce symbole, s'il est marqué sur le produit, indique qu'il est indispensable de se protéger les yeux.
This symbol, when noted on the product, identifies the location of a fuse or current limiting device. Ce symbole, lorsqu’il figure sur le produit, identifie l’emplacement d’un fusible ou d’un dispositif delimitation du courant.
This symbol indicates a laser device is used in the equipment.Ce symbole indique qu'un dispositif laser est utilisé dans l'équipement.
This symbol, when noted on the product, indicated the presence of devices sensitive to Electro-static Discharge (ESD) and indicated that care must be taken to prevent damage with the equipment.Ce symbole, lorsqu’il figure sur le produit, indique que l’élément repéré peut être chaud et que des précautionsdoivent être prises avant de le toucher.
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General Information
2.2 Certification
Canadian Radio Interference-Causing Equipment Regulation, IECS-003, Class A: Supporting test records reside with the manufacturer.
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numèrique de la classe A respecte toutes les exigences du Rëglement sur le matÈriel brouilleur du Canada.
FCC Part 15, Class "A" LimitsSupporting test records reside with the manufacturer.
The device complies with Part 15 of the FCC Rules. Operation is subject to the following conditions:
1. The equipment may not cause harmful interference.
2. The equipment must accept any interference received, including interference that may cause undesired operation.
Changes or modifications to this equipment not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. 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 their expense. The following techniques can be used to reduce interference problems:
1. Disconnect the equipment from its power source to verify that it is or is not the source of the interference.
2. If the equipment is connected to the same outlet as the device experiencing interference, connect the equipment to a different outlet.
3. Move the equipment away from the device receiving the interference.
4. Reposition the receiving antenna for the device receiving the interference.
5. Try combinations of the above.
2.3 General product informationThe MET ONE A2432 manifold system consists of a particle counter, manifold and manifold controller. The MET ONE A2432 manifold system allows a single particle counter to sample up to 32 different locations. Each sample location is connected to the manifold by tubing of up to 30 meters in length. Two tubes (one for sample and one for return air) are connected between the manifold and the counter. The manifold routes the air from each location to the particle counter in turn. An external vacuum pump maintains a constant airflow in the system.
The MET ONE A2432 manifold system can scan in any predetermined sequence through any or all the manifold ports in any order and skip the unused ports. The particle counter and the manifold are usually positioned outside the clean-room and may be left unattended to execute the programmed sampling routine. The need for monitoring personnel to intrude in the clean-room to collect count data is reduced.
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General Information
The control of the entire system is assigned to a computer that creates a control hierarchy wherein the manifold is powered, programmed and controlled by a manifold controller. The manifold controller is controlled by the particle counter, which in turn is controlled by the computer, which makes the sampling process automatic.
2.3.1 MET ONE A2342 particle counterFour different particle counters (refer to Figure 2 on page 13, item 1) are available for use as part of the MET ONE A2432 manifold system—Models A2100, A2200, A2400 and A2408. All the four models have two, four, five or six particle-size channels, but have different minimum size sensitivity. The internal vacuum pump of the particle counter draws a 1 Cfm sample column from the manifold sample tube. A built-in printer provides a printout of present and the past data. For specifications and instructions to operate the particle, refer to the Operating manual of the particle counter.
2.3.2 ManifoldThe 32-port manifold (refer to Figure 2 on page 13) is designed for operation only a particle counter. The system provides random sampling at up to 32 locations through the sample tubes. The manifold requires an external vacuum pump to maintain a constant purge airflow during the 32-port operation. The flow rate is 2–3 Cfm and occurs in all idle tubing. Purging is accomplished with a minimum 15 second delay for each port before the counting begins.
2.3.3 Manifold theory of operationThe external vacuum pump provides 40–80 in/ H2O vacuum at the large fitting at the back of the manifold. The vacuum produces a 2–3 Cfm flow rate at each of the 32 manifold ports. The particle counter draws 1 Cfm by the use of the sample line and the selected port through the sample pickup shoe. The excess sample is allowed to flow around the pickup shoe. The positive pressure and flow around the pickup shoe prevents the ambient air from being sampled by the counter. Any ambient air that enters the manifold system will be drawn to the external vacuum pump and not into the particle counter because of the dominant flow pattern in the internal cavity (refer to Figure 1 for manifold operation).
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General Information
2.4 Manifold controllerThe manifold controller (refer to Figure 2) contains the control, display and the alarm electronics that controls the manifold. The manifold controller shows the sample sequence information, allows the user to program the manifold sampling sequence and provides an interface with the optional alarm relay module.
2.5 Applications of the MET ONE A2342 manifold systemThe MET ONE A2432 manifold system is designed to help users comply with the various regulatory standards set by the government or industries such as Fed-Std 209, ISO and so on. The MET ONE A2432 manifold system provides a delivery method for monitoring particulate levels at many locations within a facility.
The manufacturer does not hold responsibility or authority to inform or train the customers to adhere to the required standards. Consult the appropriate regulations or regulatory agency to understand the applicable requirements for the facility.
Figure 1 Theory of operation (Manifold)1 External vacuum connection 4 Sample pickup shoe
2 Excess sample flow 5 Ambient air
3 Manifold ports (32x) 6 Flow rate of 1 Cfm to particle counter
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General Information
12
Section 3 Installation
DANGEROnly qualified personnel should conduct the installation tasks described in this section of the manual.
DANGERSeul le personnel qualifié doit effectuer les tâches décrites dans ce chapitre du manuel.
3.1 Unpack the instrumentRemove the components from the shipping container and inspect for damage. Verify that all the items listed in Figure 2 are included. If any items are missing or damaged, contact the manufacturer or sales representative. There are several optional accessories that can be ordered to suit the system to the needs. Refer to Appendix for more information.
Retain the original packaging materials. Use the original packaging material to store or ship the instrument to protect against damage during storage or transportation.
Figure 2 List of packaged items1 Manifold controller (2083034-01) 4 Controller cable, RS232 (400119) (not shown)
2 Manifold (2080359-1) 5 AC adaptor, 115 VAC (400100) or 230 VAC (510667) (not shown)3 Manifold cable (2083006-01) (not shown)
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Installation
3.2 Setup the MET ONE A2342 manifold systemDesign a layout to setup the MET ONE A2432 manifold system in a clean-room facility (refer to Figure 3).
Note the selection of each sample point on the floor plan. While not all installations use all the examples, they are appropriate for many users. Each sampling point is collected through an isokinetic probe, which helps in collecting a sample with a representative distribution of particle sizes. Locate the MET ONE A2342 manifold system so that the system complies with the Fed-Std-209E standard.
Each tubing run is of the same length and with a tolerance of 20%. For example, a manifold 10 feet from the nearest sampling point and 90 feet from the farthest will create imbalances in the system and affect the sampling adversely.
Figure 3 Set up the sampling points1 Sampling points (A–E)
Table 1 Sampling points setup
Sampling point Event/process monitored Type of isokinetic probe
A Gowning and cleanup Through wall
B Mid-room point Direct mount
C Access points Through wall
D Workstation activity Ceiling mounted L-hook
E Background baseline Ceiling mounted J-hook
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Installation
3.3 Tubing connectionsNote: The plastic caps on the opening of isokinetic probes should remain in place till they are ready to use.
Install the Isokinetic probes at the required points. Select a position for the MET ONE A2432 manifold system equipment less than 100 feet (including vertical runs) from every sampling point. Make sure that adequate power is available for the equipment. Verify that the front panels of the particle counter and the manifold controller are accessible.
To install the isokinetic probes:
1. After the sample tubing is cut to length, cover the ends of the sample tubing till the tube is ready to attach the equipment at either end, in order to minimize contamination.
2. Connect the sample tubing to the isokinetic probes and route the tubing to the manifold equipment without kinking. Any bend in the tubing can affect the particle size distribution at the particle counter. The larger particles are heavier and may drop out in bends or loops. Each bend radius should be no less than four inches. Make sure to avoid potential kinks at any point along the tubing where it is anchored to a clip or any other hold-down device.
3. Support the tubing and do not drape the tubing across any sharp cornered objects where heat-induced sagging may cause pinching or kinking.
To connect the tubing to the manifold system (refer to Figure 4 on page 15 and Figure 5 on page 16):
1. Connect all the 3/8" ID sample tubing to the appropriate manifold ports. If a few manifold ports are to be used, connect the sample tubing to ports that are spaced proportionately. For example, five samples should be connected to ports 1, 7, 13, 19 and 26. This will keep the airflow in the manifold balanced. Unused ports need to be left open to relieve the excess vacuum load on the pump or the relief valve on the pump must be adjusted according to the pump manufacturer’s instructions.
2. Attach a short piece of ¼" ID tubing between the particle counter sample inlet (on top of the particle counter) and the manifold sample air outlet fitting (center of the shroud).
3. Attach a ¼" ID return air tube between the fitting on the back panel of the particle counter and the manifold.
4. Attach a large hose between the vacuum pump and the manifold assembly exhaust outlet. Make sure that the unused vacuum connection is capped.
Figure 4 Manifold to sampling point tubing connections1 Sample ports on manifold (up to 32)
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Installation
3.4 Electrical connections
3.4.1 Electrical safety informationDANGERShock hazard. Connect the vacuum pump to the power in accordance with local building codes. The voltage and current required by the vacuum pump are at lethal levels. Failure to use this instrument in the intended manner may result in injury or loss of life.
DANGERRisque de choc. Reliez la pompe à vide à l’alimentation électrique en respectant les normes électriques en vigueur. La tension et le courant exigés par la pompe à vide atteignent des niveaux mortels. L’utilisation de cet instrument de façon inappropriée peut avoir de sérieuses conséquences pour l’utilisateur en entraînant des blessures graves ou même la mort.
To make the electrical connections (refer to Figure 6):
1. Connect the controller cable between the Manifold connector at the back of the particle counter and the particle counter connector at the back of the manifold controller.
2. Connect the manifold cable between the manifold assembly and the Manifold connector at the back of the controller.
Figure 5 Manifold to particle counter tubing connections1 To vacuum pump 5 Sample line connection on particle counter
2 Return air connection on manifold 6 Return air connection on particle counter
3 Sample line connection on manifold 7 Return air tubing
4 Sample line connection tubing
16
Installation
3. Plug the counter and manifold controller to the facility power.
4. Wire the vacuum pump to the line power that matches the requirements of the pump in accordance with the local electrical codes.
5. Check the identification labels at the back of the particle counter and manifold controller for line voltage and frequency requirements. Verify that the instrument is compatible with the power available in the facility.
3.5 Power up1. Turn the power on to the manifold controller. Make sure that the motor is heard at the
manifold as the manifold performs a home test.
2. Turn the particle counter on but do not turn on the vacuum pump. The display on the manifold controller momentarily flashes "32" which indicates that all the 32 ports are enabled. The manifold controller then displays "01" which indicates that the manifold is currently at port 1 and is ready to be sampled.
Refer to Section 6 on page 27 for troubleshooting instructions.
Figure 6 Manifold system electrical connections1 Manifold 6 Controller cable connector on manifold controller
2 Manifold cable connector on manifold 7 Particle counter
3 Manifold cable 8 Manifold connector at the back of the particle counter
4 Manifold controller 9 Controller cable
5 Manifold connector at the back of the manifold controller
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Installation
18
Section 4 Operation
4.1 User displayThe MET ONE A2432 manifold system consists of a particle counter, manifold, manifold controller. Both the manifold controller and the particle counter feature a Liquid Crystal Display (LCD) and a keypad (refer to Figure 7 and Figure 8).
Figure 7 Main screen display of the manifold controller1 2-digit LED display 2 Front panel of the manifold controller
Figure 8 Main screen display of the particle counter1 3-digit LED display 3 7-digit LED display
2 Front panel of the particle counter
19
Operation
4.2 Programming parametersUnderstand the terminology used to describe the system and programming. It is very important to keep the terminology used distinct.
Sampling Point—The physical place in the facility where the sample is being drawn from. An isokinetic probe is installed at each sampling point.
Port Number—The actual fitting on the front of the manifold itself where the tubing from the sampling point is connected, numbered 01 through 32.
Scan Steps—The order of programmed sequence steps set up in the manifold controller by the operator. The programmed sequence steps can run up to 100 steps, numbered 00 through 99. The scan steps may or may not coincide with the port number. For example, a sequence of scan steps may be programmed and port number 07 may be the first port sampled by the system. In such an event, the first scan step (00) would be port 07.
Cycles—The number of samples to be drawn at each port before moving to the next scan step, programmed at the particle counter.
Locations—The number of scan steps to be used in a given sampling operation, programmed in the particle counter. Refer to Table 2 to interpret the following example:
• A sampling operation is set up with 5 sampling points. The sampling points are connected to the manifold at port numbers 01, 07, 13, 19 and 26.
• The manifold controller is programmed for five scan steps (00–04).
• The number of cycles is set to 001 in the particle counter, for one sample at each scan step.
• The number of locations is programmed in to the particle counter. If the number of locations matches the number of ports used and scan steps, each port will be sampled once.
• A number of locations may be programmed in the particle counter which does not match the number of ports used or the number of scan steps. If the programmed number of locations is lesser than the number of connected ports and scan steps, some ports will not be sampled.
• If the programmed number of locations is more than the number of connected ports and scan steps, some ports will be sampled more than once.
Table 2 Manifold system programming examples
1 Port no. 01 07 13 19 26
2 Scan step no. 00 01 02 03 04
3 Cycles = 001 1, sample 1, sample 1, sample 1, sample 1, sample
4 No. of locations = 005 001 002 003 004 005
5 No. of locations = 003 001 002 003
6 No. of locations = 007 001 002 003 004 005
006 007
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Operation
4.2.1 Default settings
The factory default settings for the manifold controller sampling parameters are as follows:
• Ports (01–32)—Enabled for sampling
• Scan steps—32 scan steps are programmed (00–31)
The factory default settings for the particle counter sampling parameters are as follows:
• Cycles—Set to 1, for one sample at each scan step
• Locations—Set to 0, for continuous sampling
• Sample time—Set to 1 minute, which draws a 1 ft3 sample
• Hold time—Set to 15 seconds, the minimum when using a manifold system
The MET ONE A2342 manifold system starts sampling at port 1, takes one minute sample and moves to port 2. The MET ONE A2342 manifold system will then wait for 15 seconds before it takes a one-minute sample, moves to port 3 and waits 15 seconds. The process repeats indefinitely until port 32 is sampled and the MET ONE A2342 manifold system returns to port 1 to begin a new routine.
4.3 Program a sampling routine
4.3.1 Clear a sampling routineNote: If the MET ONE A2342 manifold system was previously in use under external computer control, it must be released from computer control, turned off and then turned on before programming.
The programmed sampling routines are retained in the memory while the power is off.
To clear a previously programmed sampling routine:
1. Press LOCAL and make sure that the light on LOCAL turns on.
2. Press PROGRAM and make sure that the light on PROGRAM turns on.
3. Press ENABLE ALL PORTS and then press ENTER.
4.3.2 Program a simple sampling routineWhen the sampling is done, the MET ONE A2342 manifold system samples most of the ports and leaves a few unsampled. In simple programming, the manifold controller is programmed to skip a few ports instead of using a few ports.
To create such a sampling routine:
1. Verify that the light on LOCAL is turned on at the MET ONE A2342 manifold system (refer to Figure 8 on page 19). If not, press LOCAL so that the light on LOCAL turns on.
2. Press the UP or DOWN arrow key until the port to be skipped is displayed on the two-digit LED display.
3. Press SKIP and verify that the red light on SKIP turns on. To restore the port to the sampling routine, press SKIP again.
4. Repeat steps 2 and 3 for each port to be skipped.
21
Operation
5. When ready to begin sampling, press REMOTE and verify that the light on REMOTE turns on.
6. Press the DOWN arrow key at the particle counter (refer to Figure 8 on page 19) until the light on CYCLES turns on.
7. Press PROGRAM and verify that the 3-digit LED displays “CYC” and the 7-digit LED displays “000”. Use UP or DOWN arrow keys to set the CYCLES to the required number of samples taken at each port.
8. Press ENTER to save the CYCLES setting. Verify that the 3-digit LED displays “loc” and the 7-digit LED displays “000”.
9. Use the UP or DOWN arrow keys to set the required number of locations. Programming 000 locations will cause the sampling routine to be repeated continuously.
10. Press ENTER to save the programmed sampling routine.
4.4 Program a detailed sampling routineTo program a complex sampling routine tailored to specific situation requirements, five sampling points are used, which are connected to manifold ports 01, 07, 13, 19 and 26. Turn on the particle counter and the manifold controller. Make sure that the manifold controller is in Local mode (refer to Figure 7 on page 19).
To program a detailed sampling routine:
1. At the manifold controller, press PROGRAM and verify that the light on 2-digit LED blinks the scan step number (00) briefly and then displays the port number (01). This indicates that the first scan step in the sampling routine will be port 1.
2. Press NEXT to save the programmed scan step and move to the next scan step. Verify that the light on the 2-digit LED blinks the next scan step number (01) briefly and then displays the next port number. The port number displayed is from the factory defaults or from a previous program.
3. Press UP arrow key to display "07" in the 2-digit LED display. This sets the second scan step (01) to port 7.
4. Press NEXT and verify that the display blinks the next scan step (02) and displays the port number.
5. Press the UP arrow key until the display shows "13".
6. Repeat steps 4 and 5 for the remaining 2 scan steps (03 and 04) and port numbers (19 and 26).
7. Press ENTER to conclude programming.
8. Press the UP arrow key to verify the programmed sequence. Observe the LED display of each programmed port number in sequence.
9. Press REMOTE and verify that the light on REMOTE turns on to prepare for sampling.
Note: The steps above may be repeated and modified to include a wide variety of configurations and sequences. Port numbers need not be sampled in numerical order and may be entered more than once in a sequence of scan steps.
10. At the particle counter, press the DOWN arrow key until the light on CYCLES turns on.
11. Press PROGRAM and verify that the 3-digit LED displays “CYC” and the 7-digit LED displays “000”. Use the UP and DOWN arrow keys to set the Cycles to 003.
12. Press ENTER to save the setting and verify that the 3-digit LED displays “loc” and the 7-digit LED displays “000”.
22
Operation
13. Use the UP and DOWN arrow keys to set the number of locations to “010”.
14. Press ENTER to save the programmed sampling routine.
A sampling routine with five scan steps is created. The system will draw the following number of samples
• Three samples (cycles) from port 1
• Three samples from port 7
• Three samples from port 13
• Three samples from port 19
• Three samples from port 26.
The sampling routine will repeat the entire process before stopping for a total of 10 locations.
4.5 Enable all portsTo restore all 32 ports to active sampling status:
1. Press LOCAL and make sure that the light on LOCAL turns on.
2. Press PROGRAM and make sure that the light on PROGRAM turns on.
3. Press ENABLE ALL PORTS and then press ENTER.
4.6 Reset the default sampling routine
To reset the manifold controller to factory default settings:
1. Reset the manifold controller to clear the memory and restart the microprocessor. All the programmed instructions such as the sample sequence are erased.
2. Turn off power to the manifold controller to clear the memory of all the programming.
3. Press and hold PROGRAM key and turn the power on to the manifold controller.
4.7 Set the alarm limitsThe alarm limits for the various particle size channels in the particle counter may be copied to the manifold controller memory so that each sample point has a unique count alarm limits.
To set alarm limits for the MET ONE A2342 manifold system:
1. Press LOCAL at the manifold controller (refer to Figure 7 on page 19) and verify that the LED on LOCAL is turned on. The two-digit display will briefly blink the first scan step (00) and then display the associated port number (01).
2. Press PROGRAM and verify that the LED on the PROGRAM key is turned on.
3. At the particle counter (refer to Figure 8 on page 19), verify that the particle counter is showing the particle size range in the 3-digit LED.
4. Press the RIGHT and LEFT arrow keys to show the required size range.
5. Press PROGRAM to show the alarm limits for the selected size range.
6. Use the four arrow keys to set the digits to the required alarm limit.
7. Press ENTER to save the settings.
8. Repeat steps 3–6 for each required size range.
23
Operation
9. Press COPY at the manifold controller (refer to Figure 7 on page 19) to copy the alarm limits from the particle counter to the manifold controller for the required scan step and port number.
10. Press NEXT to advance the next scan step (01).
Note: Press BACK to return to a previous scan step.
11. Repeat steps 3–9 for the remaining scan steps and press ENTER when all the alarm settings have been copied.
To duplicate alarm limits for multiple ports:
1. Use UP and DOWN arrow keys on the Manifold controller to select each port is in turn instead of the NEXT and BACK keys. Refer to step 10.
2. To view the alarm settings for the sampling routine after the copy process is complete use the UP and DOWN arrow keys to select the required scan step at the Manifold controller.
3. At the particle counter, use the four arrow keys to show the required size range. Press and hold ENTER to display the alarm setting for that size range.
4.8 Start the sampling routineThe system is ready to operate after the sampling routine has been programmed and the required alarm limits are copied.
To start the sampling routine:
1. Make sure that the manifold controller is in Remote mode and the particle counter is in Automatic mode.
2. Turn on the vacuum pump that supplies vacuum to the manifold system and press RUN on the Particle counter.
3. The manifold will begin sampling from the first programmed port and proceed through the sampling routine until it is complete.
24
Section 5 Maintenance
DANGERShock Hazard. Only qualified personnel should conduct the installation tasks described in this section of the manual.
DANGERRisque de choc. Seul le personnel qualifié doit effectuer les tâches décrites dans ce chapitre du manuel.
5.1 Clean and maintain the manifoldContaminants (dirt, dust, fibers and so on) may build up inside the cavity of the manifold after prolonged use. The manifold should be cleaned once a year during normal operation or more frequently if used in extreme dirty environments. Inspect the coupling shoe within the manifold for damage once a year (refer to Figure 9 on page 26 for manifold cleaning and Figure 10 on page 26 for coupling shoe inspection).
To clean the manifold:
1. Disconnect the manifold from the controller, particle counter and vacuum pump.
2. Remove the two wing nuts that hold the back panel shroud in place. Carefully remove the shroud and set aside.
Note: Vacuum hoses and tubing may be left attached to inlet and outlet fittings attached when the user cleans the manifold.
3. Remove the 12 hex-head cap screws that hold the front panel to the manifold body.
4. Remove the front panel straight out and away from the manifold.
5. Use clean, oil-free compressed air to blow out dust or fibers.
6. Locate the coupling shoe and inspect the four standoffs that hold the shoe away from front panel. Make sure the standoffs measure between 0.20”–0.010”. If it does not fall within this specification, replace the coupling shoe (20468401)
7. If there is a need to replace the coupling shoe, take care not to over tight the four mounting screws. Tighten only 1/8th turn past the seating of the screw.
8. Repeat the steps 1-6 in reverse order to assemble the manifold.
25
Maintenance
5.2 External cleaningWipe the external surfaces with a soft cloth that is lightly moistened with isopropyl alcohol (IPA). The isokinetic probes can be autoclaved for cleaning.
Figure 9 Manifold cleaning1 Front of manifold 3 Front panel removed
2 Rear panel with cover removed
Figure 10 Coupling shoe1 Manifold front panel 3 Coupling show standoff height
2 Coupling shoe
26
Section 6 Troubleshooting
6.1 Common problemsTable 3 Troubleshooting procedures
Symptom Cause Solution
Manifold controller displays"FF" when turned on.
No communication between manifold and the controller.
Make sure that the cable is properly connected.
Unable to achieve 1.0 Cfm sample flow at the particle counter with rear panel flow adjustment valve.
Reversed "Sample" and "Return Air" tubing connections at the manifold.
Refer to section 3.3 on page 15 for proper connections.
Particle counter will zero count alone, but manifold system will not.
Internal coupling shoe has worn out.
Refer to section 5.1 on page 25 for the coupling shoe inspection procedure.
27
Troubleshooting
28
Section 7 Replacement Parts and Accessories
7.1 AccessoriesDescription Item no.
Manifold 2080359-01
Manifold controller 2083034-01
Particle counter Multiple variations available
Controller cable 400119
AC power adapter (115 or 230 VAC) 400100 or 510667
Manifold cable 2083006-01
Isokinetic probe—Through wall (optional) 2082368-2
Isokinetic probe—(optional) 2082645-1 or -2
Isokinetic probe—(optional), Wall mount bracket (optional) 2082644-3
Isokinetic probe—Ceiling mounted L-hook (optional) 2082366-2
Isokinetic probe—Ceiling mounted J-hook (optional) 2082363-2
Vacuum pump (optional) Multiple variations available
Tubing (optional) 960380
Tubing—Manifold to particle counter ½” (optional) 960011
Coupling shoe 204684-01
29
Replacement Parts and Accessories
30
Section 8 Contact information
U.S.A. customersBy Telephone:800-866-7889 x.6195
By Fax:(541) 472-6180
By Mail:Hach5600 Lindbergh Dr.Loveland, CO 80526
Email:[email protected]
Website:www.hachultra.com
International customersBy Telephone:41 22 594 64 00
By Fax:41 22 594 64 99
By Mail:Hach UltraService Department6, route de Compois, C.P. 212,CH-1222 Vésenaz, Geneva, Switzerland
Website:www.hachultra.com
Information required
• Your name • Model number
• Your phone number • Serial number
• Your company • Comment or question
• Your Fax number
31
Section 9 Limited WarrantyHach Company warrants its products to the original purchaser against any defects that are due to faulty material or workmanship for a period of one year from date of shipment unless otherwise noted in the product manual.
In the event that a defect is discovered during the warranty period, Hach Company agrees that, at its option, it will repair or replace the defective product or refund the purchase price excluding original shipping and handling charges. Any product repaired or replaced under this warranty will be warranted only for the remainder of the original product warranty period.
This warranty does not apply to consumable products such as chemical reagents; or consumable components of a product, such as, but not limited to, lamps and tubing.
Contact Hach Company or your distributor to initiate warranty support. Products may not be returned without authorization from Hach Company.
LimitationsThis warranty does not cover:
• Damage caused by acts of God, natural disaster, labor unrest, acts of war (declared or undeclared), terrorism, civil strife or acts of any governmental jurisdiction
• Damage caused by misuse, neglect, accident or improper application or installation
• Damage caused by any repair or attempted repair not authorized by Hach Company
• Any product not used in accordance with the instructions furnished by Hach Company
• Freight charges to return merchandise to Hach Company
• Freight charges on expedited or express shipment of warranted parts or product
• Travel fees associated with on-site warranty repair
This warranty contains the sole express warranty made by Hach Company in connection with its products. All implied warranties, including without limitation, the warranties of merchantability and fitness for a particular purpose, are expressly disclaimed.
Some states within the United States do not allow the disclaimer of implied warranties and if this is true in your state the above limitation may not apply to you. This warranty gives you specific rights, and you may also have other rights that vary from state to state.
This warranty constitutes the final, complete, and exclusive statement of warranty terms and no person is authorized to make any other warranties or representations on behalf of Hach Company.
Limitation of RemediesThe remedies of repair, replacement or refund of purchase price as stated above are the exclusive remedies for the breach of this warranty. On the basis of strict liability or under any other legal theory, in no event shall Hach Company be liable for any incidental or consequential damages of any kind for breach of warranty or negligence.
32
Appendix A Scan Table Download Format
A.1 Scan table download formatThe scan table contains the information to set the sampling sequence of the manifold. Up to 100 steps can be contained in the table that is transferred from a computer through an RS232 port to the manifold controller. A null modem 9-pin computer cable is required to connect the computer and the manifold controller. Set the communications to the following—1200 baud, 8 data bits, 1 stop bit and no parity. Use the ProComm® or the Windows Terminal® software to send the following string to the manifold controller.
scan_XX_XX_XXCR
where:(scan)=command; must be lower case
(_)=space (20 hex)
(XX)=port number
(CR)=carriage return (0D hex)
33
34
Appendix B Optional Accessories
Optional accessories can be ordered along with the MET ONE A2342 Manifold system. Refer to section 7.1 on page 29 for ordering information.
B.1 Vacuum pumpVacuum pump provides constant air flow through the manifold (refer to Figure 11, item 1).
B.2 Isokinetic probesIsokinetic probes (refer to Figure 11, item 4) are used in unidirectional air flow to maximize the correlation between the counts and the actual particle-size distribution. Isokinetic probes are also called "isoprobes". Refer to section 3.3 on page 15 for installation instructions.
B.3 TubingThe tube is made from Hytrel with Teflon® lining to minimize particle adhesion to walls (refer to Figure 11, item 2):
• 3/8" ID for connecting isokinetic probes to manifold
• ¼" ID Hytrel for connecting manifold to particle counter
Refer to section 3.3 on page 15 for installation instructions.
Figure 11 Optional accessories1 Vacuum pump 3 Isokinetic probes
2 Tubing (960011)
35
36
Index
AApplications ............................................................. 11
CClass 1 Laser Product ............................................... 8
EElectrostatic Discharge (ESD) considerations ........... 8
Hhazard information ..................................................... 7
LLaser safety information ............................................ 8
MManifold ................................................................... 10Manifold controller ................................................... 11
PParticle counter ........................................................ 10
Precautionary labels .................................................. 7procedures, troubleshooting .................................... 27
RReplacement Parts .................................................. 29
SSafety information ...................................................... 7Specifications ............................................................. 5
Ttroubleshooting procedures ..................................... 27Tubing Connections ................................................. 15
UUnpack, instrument .................................................. 13
WWarranty .................................................................. 32
37
Index
38