Met One A2432 Operator's Manual

Manifold system

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Model A2432

Manifold

System

Operators

Manual

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Summary of Contents for Met One A2432

Page 1 Model A2432 Manifold System Operators Manual...
Page 2 Major revisions of this manual will be indicated by a new revision level. Minor corrections or additions may be made at any time without changing the revision level. Changes made to this manual causing the new revision are documented in the Manual Backdating section of this manual. Published December 2001 Note: Shipping this instrument out of the U.S.A.
Page 3: Table Of Contents
Manifold Sample Flow ........................... 23 Resetting Manifold Controller ........................22 Scan Table Downloading format ........................22 Changing "Home" Test Frequency........................ 22 Specifications: ............................... 25 A2432 System............................25 Manifold ..............................25 Manifold Controller............................ 25 Particle Counter ............................25 Alarm Module............................25 Declaration of Conformity and Warranty ..................
Page 4: Safety
Safety Manual Safety Conventions Warnings and Cautions are used throughout this manual, appearing before the procedure or step to which it applies. A Warning indicates a personnel safety hazard. It calls attention to a procedure, which if not correctly performed or adhered to, could result in injury or possibly death. Do not proceed beyond a warning until the conditions are fully understood and met.
Page 5: Electrostatic Safety
Electrostatic Safety Electrostatic discharge (ESD) can damage or destroy electronic components. Therefore, all work inside the particle counter should be done at a static-safe workstation. A static-safe workstation can be created by doing the following: Use a grounded conductive table mat and resistor-isolated wrist-strap combination Earth-ground all test instruments to prevent a buildup of static charge WARNING Using a wrist strap without an isolation resistor will increase the severity of an electrical shock.
Page 6: Pacific Scientific Instruments Service Centers
Pacific Scientific Instruments Service Centers Central Midwestern Factory 964 N. 21st Street, Suite H 555 Tollgate Road, Suite E 481 California Avenue Newark, OH 43055 Elgin, IL 60123 Grants Pass, OR 97526 740 366 5068 847 888 3600 541 479 1248 FAX 740 366 7619 FAX 847 888 3789 800 866 7889...
Page 7: Introduction
Introduction The manifold system consists of a particle counter, manifold, manifold controller, and allows a single particle counter to sample up to 32 different locations. Each sample location is connected to the manifold by tubing up to 30 meters in length; and two tubes (one for sample and one for return air) are connected between the manifold and the counter.
Page 8: Accessories
Part number 960011 Applications The A2432 Manifold System is designed to assist users in complying with various regulatory standards set by government or industry such as Fed-Std 209, ISO etc, by monitoring particulate levels at many locations within a facility. Pacific Scientific Instruments does not, however, have any responsibility or authority to inform or train its customers in the adherence to these standards.
Page 9: Setup
Setup The first step for a successful installation is to design a layout of the manifold system. The following example is intended to demonstrate how to set up a system in a cleanroom facility. On the facility plan in Figure 1, note the selection of each sample point on the floor plan. While not all installations will use all the examples, they are appropriate for many users.
Page 10: Tubing Connections
. Install the isokinetic probes at the desired points, and select a position for the A2432 system equipment less than 100 feet (including vertical runs) from every sampling point. Verify that adequate power is available for this equipment, and make sure that the counter and controller front panels will remain accessible.
Page 11: Figure 3. Manifold To Particle Counter Tubing Connections
2. Attach a short piece of tubing (1/4" I.D.) between the particle counter sample inlet (on top of counter) and the manifold sample air outlet fitting (center of shroud). 3. Attach a "return air" tube (1/4" I.D.) between fitting on rear panel of particle counter and manifold.
Page 12: Electrical Connections
Electrical Connections Refer to figure 4 to make Electrical connections. 1. Connect controller cable between counter rear-panel "Manifold" connector and manifold controller rear-panel "Particle Counter" connector. 2. Connect the manifold cable between the manifold assembly and controller rear-panel connector marked "Manifold". 3.
Page 13: Figure 5. System Connections (Power Cords Not Shown For Clarity)
WARNING To avoid injury or equipment failure, the vacuum pump must be connected to facility power in accordance with local building codes. The voltage and current required by the vacuum pump are at lethal levels. 4. Wire the vacuum pump to line power that matches the requirements of the pump in accordance with local electrical codes.
Page 14: Terminology
Terminology Before configuring the A2432 Manifold System, it is important to clearly understand the terminology used to describe the system and programming. The terms listed below are used throughout this manual and are important to keep distinct. Sampling Point – the physical place in the facility where the sample is being drawn from. Normally an Isokinetic Probe, sometimes called an “isoprobe”...
Page 15: Operation
Operation Powering Up Turn the Manifold Controller power on, then turn on the Particle Counter; DO NOT turn the vacuum pump on yet. The display on the Manifold Controller should momentarily flash “32” indicating all 32 ports are enabled and then display “01” indicating that the Manifold is currently at port 1, ready to sample.
Page 16: Programming A Detailed Sampling Routine
6. At the Particle Counter, (figure 7) press ↓ ↓ ↓ ↓ until “Cycles” LED is Lit 7. Press “Program” and verify the 3 digit LED displays and the 7 digit LED displays Use the arrow keys to set the cycles to the desired number of samples taken at each port. 8.
Page 17: Figure 8. Manifold Controller Scan Step Programming
4. Press “Next” and verify the display blinks the next scan step (02) and displays the port number. 5. Press ↑ ↑ ↑ ↑ 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).
Page 18: Resetting The Default Sampling Routine
Resetting the Default Sampling Routine To restore all 32 ports to active sampling status, press in turn, “Local”; “Program”; “Enable All Ports”; and “Enter” keys. To completely reset the manifold controller to factory default settings and clear the memory of all programming, turn the power switch on the rear of the controller to the off position, and, while holding down the “Program”...
Page 19: Starting The Sampling Routine
the ↑ ↑ ↑ ↑ and ↓ ↓ ↓ ↓ keys at the Manifold Controller. At the Particle Counter, use the four arrow keys to display the desired size range, then press and hold the “Enter” key to display the alarm setting for that size range.
Page 20: Figure 12. Alarm Connector Plug Wiring
Using figures 11 and 12, connect the alarm module as follows: 1. Connect ribbon cable supplied with the alarm module from 25-pin connector on alarm module to 25-pin "Alarm Out" connector (either 1 thru 16 or 17 thru 32) on rear panel of the manifold controller.
Page 21: Maintenance And Troubleshooting
Maintenance and Troubleshooting Troubleshooting Common Problems Manifold Controller displays “ ” when turned on. Symptom: Probable Cause: No communication between Manifold and Controller. Ensure cable is properly connected. Symptom: Unable to achieve 1.0 cfm sample flow at the particle counter with rear panel flow adjustment valve.
Page 22: Manifold Cleaning And Maintenance
Manifold Cleaning and Maintenance Contaminants (dirt, dust, fibers, etc.) 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 extremely dirty environments. Within the Manifold, the coupling shoe should be inspected for wear once a year.
Page 23: Reference Information
Reference Information Manifold Sample Flow The manifold operates as shown in figure 11 . (x32) Sample 1 Cfm to particle pickup counter shoe Excess sample flow Figure 15. Manifold Theory of Operations The external vacuum pump provides between 40-80 in/ H O vacuum at the large fitting on the rear of the manifold .
Page 24: Resetting Manifold Controller
Resetting Manifold Controller This procedure clears the manifold controller's memory and restarts its microprocessor. All programmed instructions such as the sample sequence will be erased. Reset the manifold controller memory to the default (original factory) settings by pressing and holding the “Program” key while you turn power switch to on. Scan Table Downloading Format The scan table contains the information for setting the sampling sequence of the manifold.
Page 25: Specifications
Specifications: A2432 System (excluding particle counter - refer to particle counter operating guide) Environment (Operating): Temperature 12 to 41°C (55 to 105°F) Humidity 10 to 85% relative, non-condensing Environment (Storage): Temperature -40 to 71 °C (-40 to 160 °F) Humidity...
Page 26 481 California Avenue Grants Pass, Oregon 97526 declare under sole responsibility that the A2432 Manifold System , part number 2083049 consisting of: 32-Port Manifold, Part Number 2080359 Manifold Controller, Part Number 2083032 conforms to Directive 89/336/EEC for Electromagnetic Compatibility and Directive 73/23/EEC for Low Voltage.
Page 27 Warranty Pacific Scientific Instruments (“Seller”) warrants that the Products will operate substantially in conformance with Seller’s published specifications, when subjected to normal, proper and intended usage by properly trained personnel, for a period of one (1) year from the date of shipment to Buyer (the “Warranty Period”). Seller agrees during the Warranty, provided it is promptly notified in writing upon the discovery of any defect and further provided that all cost of returning the defective Products to Seller are prepaid by Buyer, to repair or replace, at Seller’s option,...