CETAC ASX-260 Operator's Manual

ASX-260 Auto Sampler Operator’s Manual

Product Warranty Statement

SD Acquisition, Inc., DBA CETAC Technologies (“CETAC”) warrants any CETAC unit manufactured or supplied by CETAC for a period of twenty five (25) months from the date of shipment. Units found in the reasonable judgment of CETAC to be defective in material or workmanship will be repaired or replaced by CETAC without charge for parts and labor. CETAC reserves the right to change or improve the design of any unit without assuming any obligation to modify any unit previously manufactured.

This warranty does not cover any unit that has been subject to misuse, neglect, negligence, or accident. The warranty does not apply to any damage to the unit that is the result of improper installation or maintenance, or to any unit that has been operated or maintained in any way contrary to the instructions specified in the CETAC instruction and operation manual. Operation of the CETAC unit inside a laboratory fume hood is contra-indicated and will void the warranty. Any attempt to repair or alter any CETAC unit by anyone other than by CETAC authorized personnel or agents will void this warranty. If any non-CETAC component is installed in the CETAC manufactured unit without the approval of CETAC, the warranty will be voided. In addition, this warranty does not extend to repairs made necessary by the use of parts, accessories or fluids which are either incompatible with the unit or adversely affect its operation, performance or durability. CETAC’s obligation under this warranty is strictly and exclusively limited to repair or replacement of defective CETAC parts and no claim of breach of warranty shall be cause for cancellation or rescission of the contract of sale of any unit.

The foregoing express warranty is in lieu of all other warranties, expressed or implied, including warranties of merchantability and fitness for a particular purpose. CETAC shall not be bound by any representations or statements on the part of its employees or agents whether oral or in writing and including any made in catalogues and other promotional material including technical details and specifications except where such representations and statements are expressly made part of this contract. CETAC assumes no responsibility for incidental, consequential or other damages, even if advised of such a possibility, including but not limited to loss or damage of property, loss of revenue, loss of use of the unit, loss of time, or inconvenience. CETAC’s liability on any claim for loss or damage arising out of the sale, resale or use of any of its products shall in no event exceed the selling price of the unit.

Purch aser shall indemnify CETAC against any c laim or liability wh ich may be asserted as relates to the following: (i) the use to which any product supplied hereunder is put infringes the patent, copyright or other intellec tual proper ty rig hts of any third party ; or (ii) an y liability resulting from the failure by Purchaser to observe the terms of this Warranty.

Retu rned Product Procedures

Claims for shipmen t damage (eviden t or conc ealed) must be filed with the carr ier by the buyer . CETAC must be notified within nin ety (90) days of shipment of incorrect materials. No product may be returned, whether in warranty or out of warranty, without first obtaining approval from CETAC. No replacements will be provided nor repairs made for products returned without such approval. Any returned product mu st be accompanied by a return auth orization number . The expense of r eturning the unit to CET AC for servic e will be paid by the buyer. The status of an y produc t return ed later than th irty (30) days after issuance of a return authorization number will be subject to review. Shipment of repaired products will generally be made forty eight (48) hours after the receipt.

Products may not be returned which are contaminated by radioactive materials, infectious agents, or other materials constituting health hazards to CETAC employees.

Returned Product Warranty Determi n ation

After CETAC’s examination, warranty or out of warranty status will be determined. If a w arranted defect ex ists, the product w ill be repaire d at no charge and shipped prepaid back to the buyer. If the buyer desires an air freight return, the product will be shipped collect. Warranty repairs do not extend the original warranty period.

If an out of warranty defect exists, the buyer shall be notified of the repair cost. At such time the buyer must issue a valid purchase order to cover the cost of repair and freight, or authorize the products to be shipped back as is, at the buye r’s e xpense . Failure to obtain a purchas e order number approval within fifteen (15) days of notification will result in the products being returned as is, at the buyers expense.

REPRODUCTION

All rights reserved. Reproduction or transmission of this document in whole or in part, and by any means without the express written consent of the copyright owner or authorized agent is prohibited. Requests for additional copies of this, or any other CETAC publication, can be filled by contacting an authorized distributor or

CETAC Technologies Customer Service & Support 14306 Industrial Road Omaha, Nebraska 68144, USA Phone (800) 369-2822 (USA only) Phone (402) 733-2829 Fax (402) 733-1932 E-mail custserv@cetac.com

DISCLOSURE

This document contains CETAC proprietary data and is provided solely to its customers for their express benefit of safe, efficient operation and maintenance of the product described herein. Use or disclosure of CETAC proprietary data for the purpose of manufacture or reproduction of the item described herein, or any similar item, is prohibited, and delivery of this document shall not constitute any license or implied authorization to do so.

SAFETY

Instruments, accessories, components or other associated materials may not be returned to CETAC Technologies if contaminated with biohazard or radioactive materials, infectious agents, or any other materials and/or conditions that could constitute a health or injury hazard to CETAC employees. Call Customer Service and Support if there is any question or doubt relative to decontamination requirements.

CAUTION and WARNING statements, as applied in this document, shall be interpreted consistent with the following context: CAUTION applies only to potential property damage conditions; WARNING applies to potential personal injury conditions, in combination with or exclusive of potential property damage.

WARNING

The handling of organomercurial concentrates which may be used in the preparation of process standards presents a substantial (potentially lethal) safety hazard. Only an experienced, professionally trained organo-metallic chemist, knowledgeable and skilled specifically in the safe handling of organomercurials (using approved apparatus and approved protection measures in an approved facility) should attempt to prepare diluted organomercurial process standards from concentrates.

REVISIONS

CETAC Technologies strives to provide the scientific community with an unparalleled combination of effective technology and continuing value. Modular upgrades for existing instruments will continue to be a prime consideration as designs progress.

CETAC Technologies reserves the right to revise this document and/or improve products described herein at any time without notice or obligation. Warranty registration entitles the named owner exclusively to manual change pages/new editions as they are published.

NOTE

SD Acquisition, Inc., DBA CETAC Technologies assumes no liability for the handling of organomercurial concentrates or the preparation, handling, or use of diluted organomercurial process standards. recommends use of appropriate standard reference materials to validate sample preparation (dissolution/digestion) and use of inorganic mercury standards for instrument calibration.

All user-serviceable components are specifically identified in this document as such; the balance shall be assumed to

Instead

, CETAC Technologies

require the expertise of a factory service technician/engineer for adjustment, repair, replacement, modification, etc. Others not so qualified and performing these actions Furthermore, never operate the instrument without first reading and understanding the ASX-260 Operator’s Manual and ensuring that it is operated safely and properly.

shall do so at their own risk.

WARNING

ORIGINAL PACKAGING

Retain original factory packaging for moves and factory return shipments. Shipping in anything other than the original fitted foam and container can result in incidental damage from which the purchaser will not be protected under warranty.

Under all conditions the user must observe safe laboratory procedures during the operation of this product.

Operator’s Manual Addendum

Notices and Compliance Declarations

FEDERAL COMMUNICATIONS COMMISS ION (FCC) NOT ICE

This equipment has been tested and f ound 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 in a commercial installation.

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and u sed in accord ance with th e instructions, may cause harmful interference to radio communications. Operation of this equipment in a residential environment is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense.

MODIFICATIONS

The FCC requires the user to be notified that any change s or mo difications mad e to this device that are not expressly approved by CETAC may void the user's authority to operate the equipment.

CABLES

CANADIAN NOTICE

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled "Digital Apparatus." ICES-003 of the Depar t me nt of Communications.

AVIS CANADIEN

Cet appareil numerique respecte les limites de bruits radioelectriques applicables aux appareils numeriques de Classe A prescrites dans la norme sur le materiel brouilleur: "Appareils Numeriques," NMB-003 edictee par le ministre des Communic atio ns.

Connections to this device must be made with shielded cables with metallic RFI/EMI connector hoods to maintain compliance with FCC Rules and Regulations.

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Operator’s Manual Addendum

Notices and Compliance Declarations

POWER CORD SET REQUIREMENTS

The power cord set supplied with your instrument meets the requirements of the country where you purchased the instrument.

If you use the instrument in another country, you must use a power cord set that meets the requirements of that country.

WARNING

CAUTION

WARNING

This equipment is designed for connection to a grounded (earthed) outlet. The grounding type plug is an important safe ty feature. To reduce the risk of electrical shock or damage to the instrument, do not disable this feature.

To reduce the risk of fire hazard and electrical shock, do not expose the unit to rain or humidity. To reduce the risk of electrical shock, do not open the cabinet. All maintenance is to be performed by an Authorized CETAC Service Provider.

Protection provided by the equipment may be impaired if the equipment is used in a manner not spec ified by the manufacturer.

CLEANING INSTRUCTIONS

To clean the exterior surfaces of the instrument, complete the following steps:

Shut down and unplug the instrument.

Wipe the instrument exterior surfaces only using a towel dampened wit h a lab-grade c leaning agent.

Do not a l low any li qu i d to enter th e i n st ru men t cabin et, or c ome i n to con tact with any electrical compon ents. The instrument must be thoroughly dry before you reco nne ct po wer, or turn t he instrume nt o n.

COOLING FAN OBSTRUCTION

The instru ment co oling fan( s) shall remain un obstruc ted at all t imes. Do not oper ate the instrument if the cooling fan(s) are blocked or obstructed in any manner.

Repeat step 2, using a towel dampened

with clear water.

Dry the instrument exterior using a dry

towel.

ENVIRONMENTAL

Operating Temperature: 10° to 30°C Relative Humidity 0% to 95% Altitude 0 to 10000 Ft

AD-2

AVERTISSEMENT

POUR UNE PROTECTION CON T INUÉ CONTRE LES RISQUES D’INCENDIE, REMPLACER UNIQUEMENT PAR DES FUSIBLES DE MÊME TYPE ET AMPÈRAGE.

Operator’s Manual Addendum

Notices and Compliance Declarations

PANNEAU NE DOIT ÊTRE ENLEVE QUE PAR UN RÉPARATEUR QUALIFIÉ.

AVERTISSEMENT

TOUT CONTACT AVEC LES HAUTES TENSIONS PEUT ENTRAINER LA MORT OU DES BLESSURES SÉVÈRES. CE PANNEAU NE DOIT ÊTRE ENLEVE QUE PAR UN RÉPARATEUR QUALIFIÉ.

AVERTISSEMENT

TOUT CONTACT AVEC LES HAUTES TENSIONS PEUT ENTRAINER LA MORT OU DES BLESSURES SÉVÈRES. CE

AVERTISSEMENT

TOUT CONTACT AVEC LES HAUTES TENSIONS PEUT ENTRAINER LA MORT OU DES BLESSURES SÉVÈRES. CE PANNEAU NE DOIT ÊTRE ENLEVE QUE PAR UN RÉPARATEUR QUALIFIÉ.

AVERTISSEMENT

TOUT CONTACT AVEC LES HAUTES TENSIONS PEUT ENTRAINER LA MORT OU DES BLESSURES SÉVÈRES. CE

AD-3

Operator’s Manual Addendum

Notices and Compliance Declarations

PANNEAU NE DOIT ÊTRE ENLEVE QUE PAR UN RÉPARATEUR QUALIFIÉ.

WARNING

HIGH LEAKAGE CURRENT ENSURE PROPER GROUNDING

AVERTISSEMENT

COURANT DE FUITE ÉLEVÉ — FORNIR UNE MISE À LA TERRE E FFICACE.

Pinch point on X, Y, Z axis movement.

Attention – refer to the manual. T his symbol indicates that information about usage of a feature is contained in the manual.

WARNING

If the auto sampler is used in a manner not specified by CETAC

Technologies, the protection provided the equipment may be

WARNING The power switch on the rear panel is not the mains disconnect. Mains disconnect is a cco mplished by disconnecting the deta chable power suppl y cord at the appliance coupler or at the mains plug. Ensure the power cord is easily accessible and removable, in the event of an emergency, which requires immediate disconnection.

AD-4

Operator’s Manual Addendum

Notices and Compliance Declarations

CAUTION The CAUTION notice denotes a hazard. It calls attention to a procedure, practice, or the like, that, if not correctly per for med or adhered to, could result in personal injury. Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met.

WARNING This is a Safety Class 1 Product (provided with a protective earthing ground incorporated in the power cord). The mains plug shall only be inserted in a socket-outlet provided with a protective earth contact. Intentional interruption is prohibited.

Safety Mainte nance The operator should check the detachable power supply cord condition. The equipment should not be operated if the mains inlet is cracked or broken. Any obvious damage to the case (from a drop or fall) should be checked by service personnel for loose or damaged parts. See individual parts lists for approved replac ement parts.

Safety and Reg u lato r y Information Review this product and related documentation to familiarize with safety markings and instructions before you operate the instrument.

WARNING The WARNING no tice denotes a hazard. It calls attention to a procedure, practice, or the like, that, if not correctly per for med or adhered to, could result in personal injury. Do not proceed beyond a WARNING notice until the indicated conditions are fully understood

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Operator’s Manual Addendum

quip

Notices and Compliance Declarations

WARNING Ensure that power is diconnected before removal of any covers.

DC Voltage and Current

24V

AC Voltage and Current 100-240V ~ 47-63Hz 1.9A

3.33A

of the European community

Other Fuse(s) – The equipment uses one 2A 250V AC fuse which Is not operator replaceable.

WARNING Equipment is not intended for wet locations. Miscellaneous liquids in the

ment could cause hazardous conditions.

WARNING Pollution Degree - 1

WARNING Do not o

erate in explosive atmosphere.

WARNING

ll terminals allow a maximum current of 500MA @ 24VDC.



D-6

NOTE: For instructions on how to return end-of-life equipment, producer-supplied electrical accessories, or auxiliary items for proper disposal please contact the supplier or importer. In the event a supplier cannot be reached, contact CETAC Technologies customer service

artment at 1 (800) 369 2822.

Conte nts

Preface xii

Who Should Read This Book xii How to Use This Book xii Conventions Used in This Book xiii

Instructions xiii Menu Items xiv Terminology xiv Notes xv Cautions xv Warnings xv

Where to Go for More Information xvi

1Introduction 1–2

Auto Sampler Standard Components 1–2 Optional Accessories 1–6

2 Preparing for Installation 2–2

Choosing a Location 2–2

Space Requirements 2–2 Water Requirements 2–2 Power Requirements 2–3

Unpacking the ASX-260 2–4

ASX-260 Auto Sampler Operator’s Manual

Contents

3 Installing the Auto Sampler 3–2

Mounting the Z-Drive Assembly 3–3 Attaching the Z-drive Assembly to the

Auto Sampler Arm 3–4 Attaching the Z-drive Mounting Blocks 3–4 Installing the Sample Probe 3–6 Setting the Z-Axis Travel 3–7 Connecting the Rinse Station 3–9

Pumped Drain Arrangement 3–10 Gravity Drain Arrangement 3–12

Assembling a n d Pla cing the Sample Vial Racks 3–14 Establishing External Connections 3–15

Connecting the Auto Sampler to the Power Source 3–16 Connecting the Auto Sampler to an Analytical Instrument 3–16

Connecting the ASX-260 Auto Sampler

to the Host Computer 3–16 Establishing a Serial Communications Interface 3–18 Establishing an IEEE Communications Interface 3–19

4 Verifying Installation 4–2

Testing the Interface 4–2

vii

ASX-260 Auto Sampler Operator’s Manual

Contents

Checking the Auto Sampler Components 4–6 Testing the Sample Probe 4–6

5 Using the Auto Sampler 5–2

Estab lish in g Optimal Operating Conditions 5–2

Creating the Lab Environment 5–3 Replacing Auto Sampler Components 5–4 Purchasin g Su pplies 5–4

Arranging the Sample Vial Racks 5–5 Starting the Auto Sampler 5–5 Shutting Down the Auto Sampler 5–7 Flushing the Rinse Station and Flow Path 5–7

6 Maintaining the Auto Sam pler 6–2

Cleaning t h e Auto Sampler 6–2

Daily Exter n al Cleani n g 6–3 Weekly Cleaning 6–3

Checking for Leaks 6–5 Replacing Peristaltic Pump Tubing 6–6 Replacing the Sample Probe 6–7 Replacing the Rinse Station Tubing 6–7 Replacing the Sample Tray 6–8

viii

ASX-260 Auto Sampler Operator’s Manual

Contents

7 Troubleshooting the Auto Sampler 7–2

Power System Problems 7–2 Interface Problems 7–3

RS-232 Cable Problems 7–3 Software Configuration Problems 7–3

Z-Drive Assembly Problems 7-4

Glossary G–2

Pre face

Preface

The ASX-260 Au t o Sampler Operator’s Manual explains the procedur es for installing, using, and maintaining the CETAC ASX-260. It also provides information about troubleshooting ASX-260 problems and describes the design of the Auto Sampler.

Who Should Read This Book

The primary audience for the ASX-260 Operator’s Manual consists of analytical chemis ts and lab technicians. To use this manual effectively, you should have a strong knowledge of chemistry, a basic knowledge of electronic sampling equipment, at least a beginning level of computer experience, and working knowledge of the analytical instrument being used with the ASX-260.

How to Use This Book

The ASX-260 Auto Sampler Operator’s Manual contains seven chapters. You should read the chapters sequentially the first time. Thereafter, refer to the chapters separately as needed. The first chapter provides an introduction to the Auto Sampler. Subsequent chapters d e t ail the primary tasks ass ociated with the ASX-260.

This manual contains the foll o wi ng chap ters:

Chapter 1, “Introduction,”

ASX-260 Auto Sampler’s function and de sign.

Cha pter 2, “Preparing for Installation,”

requireme nts that must be met before the ASX- 260 is installed. It also provides i nstructions for unpa cking the Auto Sampler.

provides you with an overview of the

discusses spac e and pow er

ASX-260 Auto Sampler Operator’s Manual

Preface

Chapter 3, “Installing the Auto Sampler,”

procedures for installing the ASX-260 and connecting it to the analytical instrument.

Chapter 4, “Verifying Installation,”

communic ation s inter fac e betw een the ASX- 260 and th e host c ompu ter. It also explains how to check Auto Sampler components and test the sample probe.

Chapter 5, “Using the Auto Sampler,”

perform during daily operation of the ASX-260.

Chapter 6, “Maintaining the Auto Sampler,”

weekly, and peri o dic maintenance tasks.

Cha pter 7, “Tr oubl eshooti ng t he Aut o Sa mpl er, ”

diagnose and correct ASX-260 problems. These chapters are followed by a glossary of related terms.

provides step-by-step

explains how to test the

describes the tasks you

explains daily,

describes how to

Conventions Used in This Book

This book uses certain conventions to distinguish different types of information easily. This section describes these conventions.

Instructions

All step-by-step instructions are numbered and in bold, as in the following example.

1 Replace the sample vial racks.

Many numbered instructions are followed by more detailed explanations.

xiii

ASX-260 Auto Sampler Operator’s Manual

Preface

Menu Items

This book uses the following format for referring to menu items:

Settings»Communication

The text before the arrow symbol is the name of the menu; the text after the ar row symbol is the menu c hoice. Th is example re fers to the Communications menu choice in the Settings menu.

Terminology

This book frequently uses the following terms:

ASX-260

Host co m puter

ICP-AES

ICP-MS

LED

PEEK

VAC

VDC

The ASX-260 Auto Sampler. The computer that controls operation of the ICP-AES

or ICP-MS in strument to wh ich the Au to Sampler is attached.

Hertz. An inductively coupled plasma atomic emission

spectrometer. An inductively coupled plasma mass spectrometer. Inside diameter. Light-emitting diode. Polyetheretherketone. Volts alternating current . Volts d irect current.

xiv

ASX-260 Auto Sampler Operator’s Manual

Preface

CAUTION

X-axis

Y-axis

Z-axis

The left-to-right axis of the Auto Sampler. The front-to-back axis of the Auto Sampler. The up-and-down axis of the Auto Sampler.

Notes

Notes contain a reminder about the e ffect of particular actions. Th ey are indicated as follows:

Note:

This example shows how a note is displayed.

Cautions

Cautions indicate situations that require immediate attention to prevent harm to the Auto Sampler. Cautions are indicated as follows:

This example shows how a caution is displayed.

WARNING

Warnings

Warnings indicate situations that could cause bodily harm. Warnings are indicated as follows:

This example shows how a warning is displaye d.

ASX-260 Auto Sampler Operator’s Manual

Preface

Where to Go for More Information

In addition to th e ASX-260 Auto Sampler Operator’s Manual, you can refer to the following resources:

• The software manual for the analytical instrument you are using

• CETAC Technologies Customer Service and Support:

1 (800) 369-2822 1 (402) 733-2829 1 (402) 733-1932 (Fax) e-mail: custserv@cetac.com

xvi

Introductio n

Introduction

The ASX-260 Auto Sampler is designe d to be sturdy , reliable, an d easy to use. It pr ovides automated sample intr oduction that en ables you to perform other tasks while the Auto Sampler runs. The ASX-260 automatically introduces up to 180 samples when fully loaded. It contains a mic roprocessor that allo ws sequential or random sampling , providing f lexibility.

The ASX-260 is typically in terfaced to and c ontrolled by the analytical instrument host computer using a serial or IEEE communications protocol.

Auto Sampler Standard Components

Auto sampler components are made of corrosion-resistant stainless steel alloys or anodized aluminum. The enclosure and base are made from a high-strength aluminum alloy that is chromated and finished with an epoxy powder coating.

The ASX-260 operates reliably under a wide variety of conditions. Components in the sample flow path are made of polyetherimide (PEI) and polytetrafluoroethylene (PTFE). When these inert, non-metallic materials are used at temperatures less than 135°C, they can withstand repeated exposure to the following substances:

• predominantly aqueous solutions of strong acids (less than 40%)

• predominantly aqueous solutions of strong bases (less than 10%)

• common organic solvents such as acetone, alcohols, ethyl acetate,

methylethylketone (MEK), petroleum oils and derived fuels, tetrachloroethylene, toluene, and xylene

ASX-260 Auto Sampler Operator’s Manual

Introduction

CAUTION

Prolonged or repeated exposure to temperatures greater than 135°C and to the following substances can cause failure of the PEI flow path components:

• solutions of concentrated acids (greater than 40%)

• solutions of concentrated bases (greater than 10% potassium,

ammonium, or sodium hydroxides)

• partially halogenated hydrocarbons or extremely aggressive organic

solvents (chloroform, methylene dichloride, 1,1,2-trichloroethane)

Figure 1–1.

ASX-260 Auto Sampler—Front V iew.

1–3

ASX-260 Auto Sampler Operator’s Manual

Introduction

The following standard components are located on the front of the ASX260 and are shipped with the Auto Sampler. Each lettered item corresponds with a callout in Figure 1–1.

A Sample tray.

The sample tray has 10 re ar standar d positions and accommodates up to 2 sample vial racks. Ribs located on the bottom of the sample tray hold the sample vial racks in place.

B Sample vial racks.

ASX-260 includes four sets of sample vial racks. You can choose from five different rack sizes (with either 21, 24, 40, 60 or 90 vials per rack). You can combine racks of different sizes as long as the host computer’s software accepts the combination.

C Standards vials.

Ten standar ds vials are in cluded w ith the Auto Sampler. The standards vials, which fit into the standards positions at the back of the sample tray, are 50-milliliter conical centrifuge vials with caps.

D Flowing rinse station.

The rinse station is located in the extreme left position at th e back of the sample tray. It comes with tubing used to connect the rinse station to the rinse sourc e and the w aste container.

E Z -drive assembl y.

The z-drive assembly includes a y-axis slider block and guide plate as well as the sample probe. The z-drive assembly fits onto the Auto Sampler arm.

1–4

ASX-260 Auto Sampler Operator’s Manual

Introduction

Figure 1---- 2. ASX-260 Auto Sampler------ Back View.

The following standard components are located on the back of the ASX260 and are shipped with the Auto Sampler. Each lettered item corresponds with a callout in Figure 1- -- 2.

A On-board two-channel peristaltic pump. The on-board

peristaltic pump is located in the lower right-hand corner on the back of the Auto Sampler. The pump moves the rinse solution from the rinse source through the flowing rinse station.

1- -- 5

ASX-260 Auto Sampler Operator’s Manual

Introduction

B Two RS-232 serial I/O ports (COM1 and COM2).

ports are located on the left side at the back of the Auto Sampler. The COM1 port is the communications interface between the ASX260 and the analytical instrument’s host computer.

The serial

C Optional 5-channel input/output (I/O) auxiliary port.

DUSB Option.

port can be used to interface the ASX-260 with the host computer.

The following standard components are also shipped with the ASX-260:

• Externa l d esk-top power suppl y

240V, 1 A, with an output of DC 24V, minimum 3.3 A.

• S ampl e probe kit.

tubing. The sample probe fits into the z-drive assembly.

• Serial interface kit.

computers with normal AT-style DTE serial ports, and a

1.828-meter mod ular cable.

TheASX-260 c omes standar d with a USB p ort. Th is

. The inpu t rating is AC 100V-

The kit includes the sample probe with sample

The kit includes DB9F port adapters for host

Optional Accessories

If you are doing a specialized type of analysis or are connecting the ASX-260 to a host computer that uses a non-RS-232 communications protocol, you may need optional accessories in addition to the standard componen ts inc lud ed w ith the Au to Sampler . Th e follow ing acc essor ies are available for the ASX-260:

•

IEEE-488 interface kit.

converter box, an IEEE-488 cable, a power cord, and instructions. It is used to convert an IEEE communications protocol to a serial protocol.

1–6

The kit includes an RS-232/IEEE-488

ASX-260 Auto Sampler Operator’s Manual

Introduction

Serial interface null adapter.

•

The null adapter replaces one DB9F port adapter at the host computer. It is used for computers with DCE-AT style serial ports.

•

Serial interface special adapter kit.

The adapter kit replaces one or both standard serial port adapters with unwired DB9M, DB25M, and DB25F adapters for special applications or host computers with serial po rt s not conforming to the RS-232 standard.

•

Sample probes.

Available Probe Sizes

.3 mm ID Black band .5 mm ID Blue band .8 mm ID Red band .9 mm ID Yellow band

1.0 mm ID 2 Blue bands

Note:

Contact CETAC Technologies if you need additional accessories not listed, need added features to int egrate the A SX-260 Auto Sam pler i nto your analytical system, or have unique requirements. Research and development of new features and accessories for the ASX-260 Auto Sampler , of ten i nspir ed by custom er r equests, is a conti nui ng acti vity of CETAC Technologies.

1–7

Preparing for Installation

Installing the ASX-260 requires preparation. Before you install the Auto Sampler, you should evaluate the physical arrangement of the laboratory to choose a suitable location. Once you choose a location, you must carefully unpack the Auto Sampler prior to beginning the installation.

This chapter discusses what requirements must be met when you choose a location for the Auto Sampler. It also describes how to unpack the ASX-260 before installation.

Choosing a Location

Choosing a location for the ASX-260 involves evaluating the lab environment for the availability of space, water, and power. For the Auto Sampler to fu nction optimally, the location you selec t must meet specific requirements associated with each of these items. The following se ctions discus s space, wat er, and power requirem ents.

Space Requirements

Most analytical applications ben efit fr om th e sho rtest samp le flow path. Therefore, you should place the Auto Sampler close to the analytical instrument. The recommended minimum footprint for countertop installation of the ASX-260 is 50 x 71 x 76 centimeters. The normal operating position is horizontal, on a flat surface. The ASX-260 dimensions are 33 x 51 x 25 centimeters and weighs 8.4 kg.

Water Requirements

For most applications, deion ized water is used as a rinse agen t in the ASX-260. If a different rinse agent is routinely used, place the rinse agent source within 2 meters of the ASX-260.

ASX-260 Auto Sampler Operator’s Manual

Preparing for Installation

Ensure that there is a liquid waste receptacle within 2 meters of the ASX-260. The waste receptacle inlet should be at least 30 to 60 centimeters lower than the Auto Sampler rinse station outlet.

Power Requirements

Place the ASX-260 within 1.2 meters of a power outlet. The Auto Sampler’s input requirements are 110–240 VAC ±10%, 50/60 Hz, and 40 W. Voltage selection is automatic.

The ASX-260 uses an ex ternal d esktop pow er supp ly. Th e inpu t rating is AC 110V-240V 1 A with an output of DC 24V, maximum 3.33 A.

Ensure that you position the ASX-260 so that the location where the power supply cord plugs into it is easily accessible (is not blocked) and it can be quickly disconnected if needed.

WARNING

The power supply socket is on the back of the Auto Sampler right below the power switch. Conne ct the power supply to the Auto Sampler first and then connect a line c ord to the power supply. Do not apply power to the power supply until ready to operate the Auto Sampler.

The ASX-260 is intended to operate from an AC power source that will not apply more than 253V ac between the supply cond uct ors and ground. A pro tective gr ou nd c onne c tion by way of the grounding connector in the power cord is required for safe operation.

Unpacking the ASX-260 Auto Sampler

Inspect external packaging upon receipt for holes, tears, smashed corners, or any other outward signs of damage from rough handling or abuse during shipment. Inspect all items during unpacking and notify the carrie r immediately of any con cealed damage.

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ASX-260 Auto Sampler Operator’s Manual

Preparing for Installation

If the ASX-260 is shipped or removed f rom storage during cold weather, allow the packaged equipment to attain room temperature before opening and exposing to warm, humid air. It is usually sufficient to provide 4 to 8 hours for this purpose.

CAUTION

If condensation forms on or inside the Auto Sampler, allow it to dry thoroughly before connecting it to a power source and operating it. Failure to do so may cause equipment damage.

Remove the packing checklist from the shipping container, and check off items against it. Leave accessories in the packing until you are ready to install them on the Auto Sampler.

Note:

Do not throw away the factory packaging. Keep it for possible future use. This is one of the warran t y c ondi tions.

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Installing the Auto Sampler

The ASX-260 Auto Sampler is designed for easy installation. Installation consists of two parts: assembling the Auto Sampler and connecting it to the host analytical instrument.

For the most p art, yo u can in stall the ASX- 260 with out using tools. In fact, using tools such as screwdrivers or pliers to perform most installation tasks may result in a damaged or unusable instrument. You can remove thumbscrews with tools if necessary, but do not tighten them with anything other than your fingers.

To install the Auto Sampler, you must complete the following tasks. Each of these tasks will be discussed in detail later in this chapter.

1 Mount the z-drive assembly.

2 Connect th e rinse station.

3 Assemble the sample vial racks.

4 Establish external connections.

5 Conne ct the Auto Sampler to the h o s t c o mputer.

CAUTION

Ensure that AC power is off before proceeding with installatio n.

ASX-260 Auto Sampler Operator’s Manual

Installing the Auto Sampler

Mounting the Z-Drive Assembly

Mountin g the z-drive asse mbly on the Auto Sampler is th e first major task. The z-d rive asse mbly must be attached to the Au to Sample r ar m to allow movement and function of the sample probe. Figure 3–1 illustrates the z-drive assembly components.

Figure 3–1.

Z-drive Assembly.

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Installing the Auto Sampler

Attaching the Z-drive Assembly to the Auto Sampler Arm

To attach the z-drive assembly to the Auto Sampler arm, complete the following steps, with reference to Figure 3-1.

1 Position the z-drive assembly at the free end of the Auto

Sampler arm with the z-drive assembly pointing up.

2 Match the 6-x 3-millimeter grooves in the Y-axis slider block

with the guide rails on the Auto Sampler arm, and slide the block along the arm tube until the holes in the block align with the matching holes in the Y-axis lead screw nut.

3 Secure the Y-axis slider block to the Y-axis lead screw nut

using the 12-millimeter nylon thumbscrews installed from the top (through the bushings).

Take care to only finger tighten the nylon thumbscrews.

Attaching the Z-drive Mounting Blocks

The mounting block is already attached to the Auto Sampler.

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ASX-260 Auto Sampler Operator’s Manual

CAUTION

Installing the Auto Sampler

The PEEK cable goes to the right side of the z-axis rotor (as viewed from the back of the Auto Sampler. See Figures 3-1 and 3-2. Failure to connect the cables correctly will result in Auto Sampler malfunction. See also the Z-Drive Assembly Quick Installation Guide.

Figure 3---- 2. Back View of Auto Sampler Showing Z-Axis Rotor and

3- -- 6

Mounting Block.

ASX-260 Auto Sampler Operator’s Manual

Installing the Auto Sampler

Installing the Sample Probe

1 Install a clamp in the slot on the z-axis slider (Figure 3---- 1).

2 Install the sample probe through the slider block and push

3 Move the z-axis slider plus attached sample probe to the top of

4 Leave approximately 105 millimeters of the sample probe’s

To install the sample probe, complete the following steps:

through the clamp (Figure 3----1).

the z-axis drive.

yellow-colored support tube extending above the top of the z-axis slider (with the slider at the top of the z-axis drive). Tighten the clamp. Clamp must be positioned as shown in figure 3-1.

5 Verify that the probe tip clears the top of the rinse station when

the Auto Sampler is in the home position (Figures 1-1, 3-1) above the rinse station.

You can manually move the Auto Sampler arm with attached z-axis drive to the rinse station without damage to the Auto Sampler.

6 Retain the sample transfer tubing with the spiral-wrap at tie

points approximately 15 and 40 centimeters above the top of the z-axis drive, leaving an untangled service loop of approximately 13 to 15 centimeters above the probe.

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Installing the Auto Sampler

The sample transfe r tubing should still hav e slack re maining w hen th e probe is a t the maximu m d ownw ard limit.

Setting the Z-Axis Travel

To set the z-axis travel of the z-dr ive assembly, co mplete the following steps:

1 Adj u st the z-axis sl id er ( with atta ch ed sa m pl e probe) so that the

slider is approximately 3-millimeters below the top of z-axis drive (see Figure 3-1).

2 Rotate the z-a xis rotor (Fi gur e 3–2) cl ockwise so the rotor stop

pin is against the rotor stop.

3 Finger tighten the rotor cla mp.

Ensure that th e PEEK pull-pu ll tube is fully located in the rotor clamp groove . Oth erwise the PEEK tube will slip, resulting in no movement of the z-axis slider.

4 Manually rotate the z-axis rotor back and forth several times

and check for full unhinder ed movement of the z-axis slider.

5 With the z-axis in the full-up position, hold the z-axis slider and

move the sample probe tube up and down so that 3 to 6 millimeters extends below the sample probe guide plate.

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Installing the Auto Sampler

CAUTION

Figure 3–3.

Z-Drive Assembly with Z-Axis Slider.

Do not maneuver the sam p le probe directly as damage may result.

Note:

To make fine adjustments to the sample pr obe X/Y targeting, loosen the nylon screw on the probe guide plate 1/8 to 1/4 turn and move the guide plate up to 0.2 millimeters from the original location. Be sure to tighten the nylon screw before operating the ASX-260.

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ASX-260 Auto Sampler Operator’s Manual

Installing the Auto Sampler

Connecting the Rinse Station

The cabinet-mounted rinse station is located at the extreme left position in the standards rack. Typically, deionized water is used as the rinse solution and is pumped into the rinse station by the on-board peristaltic pump. An acid rinse such as 2% HNO

Since the p eristaltic pump in let is at the top of th e pu mp an d th e ou tlet is at the bottom, the r inse water flows fr om th e bottom to th e top of th e rinse station. Up-flow rinsing is the most effective method for decontaminating the sample probe tube between samples. Reversing the connections and the rinse water flow reduces the effectiveness of the rinse station and can cause cross-contamination and unsatisfactory performance.

The waste rinse solution drains from the top of the rinse station by means of a pumped drain, which is the standard arrangement for draining the rinse station. If it is not desirable to use a pumped drain, you can create a gravity drain arrangement. This section contains instructions for both the pumped drain arrangement and the gravity drain arrangement.

solution may also be used.

Pumped Drain Arrangement

In a pumped dr ain arran gement, th e rinse solutio n moves thr ough the on-board pe ristaltic pump to th e inle t at the bo ttom of th e r inse statio n, as shown in Figure 3–4. It then drains out the top of the rinse station and into the rinse solution waste container through the second channel of the on-board peristaltic pump.

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Installing the Auto Sampler

Figure 3–4.

To connect the rinse station using the pumped drain, complete the following steps:

1 Connect the rin se water sour ce to the on-boar d peri sta lti c pum p

by inserting the 3-mill imeter i.d. Tygon the top of the pump.

Tygon is a registered trademark of Norton Co.

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Pumped Drain Arrangement.

1®

tubin g on to the inlet at

ASX-260 Auto Sampler Operator’s Manual

Installing the Auto Sampler

Use the tubing provided for the rinse solution uptake.

2 Connect th e peri stal tic pump to the ri nse stati on by completi ng

the following steps.

Use approximately 30 centimeters of the 3-millimeter i.d. Tygon tubing provided for the rinse solution uptake.

a I nser t on e end of th e 3- mil l im eter i .d . T yg on® tubin g onto the

outlet at the bottom of the pump.

Insert the tubing car efully because th e peristaltic pump fitting gr ips the tubing tightly . If you apply too much force, the fitting can break off.

b Ins ert the oth er end of the 3-mill imeter i. d. Tyg o n® tubin g on to

the rinse tube inlet at the bottom of the rinse station.

Again, insert the tubing carefully to avoid breaking the fitting.

3 Connect the rinse station to the second channel of the on-board

peristaltic pump by completing the following steps.

Use approximately 30 centimeters of the 3-millimeter i.d. Tygon tubing provided.

a Insert th e 3- millimeter i . d . Tygon® tubing onto th e top outl et of

the rinse station.

Insert the tubing c arefu lly becau se the rin se station fitting gr ips the tubing tig htly. If you apply too mu ch force, the fitting can break off.

b Pl ace the other end of th e tubi ng onto th e pu mp inl et (top of

channel 2).

Again, insert the tubing carefully to avoid breaking the fitting.

4 Connect the second channel of the on-boa rd peristaltic pump to

the rinse solution waste container by completing the following steps.

Use up to 1.8 meters of the tubing provided for the pumped drain.

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Installing the Auto Sampler

a Insert th e 3- mill imeter i.d . Tygon® tubin g onto the peri stal tic

pump outlet.

Insert the tubing c arefu lly becau se the rin se station fitting gr ips the tubing tig htly. If you apply too mu ch force, the fitting can break off.

b Place the other end of the tubing into the waste container.

Ensure that the tubing outlet is placed in the waste container so that it will not be immersed in the waste solution. Immersion of the drain tube outlet may cause the waste solution to back up and overflow.

Gravity Drain Arrangement

Figure 3–5.

In a gravity drain ar rangement, the rinse solution move s through the peristaltic pump to the inlet at the bottom of the rinse station, as sho w n in Figure 3-5. It then drains out the top of the rinse station by means of a gravity drain.

To connect the rinse station using a gravity drain, complete the following steps:

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Gravity Drain Arrangement.

ASX-260 Auto Sampler Operator’s Manual

Installing the Auto Sampler

1 Connect the rinse solution source to the on-board peristaltic

pump by inserting the 3-millimeter i.d. Tygon

tubing onto the

inlet at the top of the pump.

Use the tubing provided for the rinse solution uptake.

2 Connect th e peri stal tic pump to the ri nse stati on by completi ng

the following steps.

Use approximately 30 centimeters of the 3-millimeter i.d. Tygon tubing provided for the rinse solution uptake.

a I nser t on e end of th e 3- mil l im eter i .d . T yg on® tubin g onto the

outlet at the bottom of the pump.

Insert the tubing car efully because th e peristaltic pump fitting gr ips the tubing tightly . If you apply too much force, the fitting can break off.

b Ins ert the oth er end of the 3-mill imeter i. d. Tyg o n® tubin g on to

the rinse station inlet at the bottom of th e rinse stat ion.

Again, insert the bottom tubing carefully to avoid breaking the fitting.

3 Connect the rinse station to the wa ste container by completing

the following steps.

Use up to 1.8 meter s of th e 5-millimeter i.d. Tyg on® tubing provided for the gravity drain. Ensur e that the waste c ontainer is at le ast 30 to 60 centimeters lower than the rinse station outlet.

a Insert the 5-millimeter i.d. Tygon® tubing onto the rinse

station outlet (on top).

Insert the tubing carefully because the rinse station fitting grips the tubing tig htly. If you apply too mu ch force, the fittings can break off.

b Place the other end of the tubing into the rinse solution waste

container.

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Installing the Auto Sampler

Assembling and Placing the Sample Vial Racks

Sample vial racks for the ASX-260 Auto Sampler are shipped unassembled. However, you can easily assemble them without using tools. Once you assemble the sample vial racks, place them in the sample tray before proceeding with the installation.

WARNING

Before loading or unloading any sample vial racks on the sample tray, park the sampling arm and probe in the home posi tion by cycl ing the power off an d on. The home positi on is the ini tia l positi on at power-up. Never a ttempt to loa d, unl oad , or reposition a sa mple via l rack or sa mple vial whil e the Auto Sampler is operating.

To assemble and place the sample vial racks, complete the following steps:

1 Snap the ra cks together as shown in the instructions included

with each ra ck.

You can also easily disassemble the r acks if you ne ed to ship or store them.

Note:

Keep at least one copy of the assembly i nstructions prov ided for each rack. Keep the copy with this manual for reference.

2 P lac e th e fi rs t sa m pl e via l r a ck a t th e extr eme l eft- han d si de of

the sa mple tra y so tha t the feet on th e ra ck’s undersi de eng age the locating ribs on the sample tray's surface.

Correctly placed sample vial racks will not move more than ±2 millimeters in either a left/right or forward/backward direction unless

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ASX-260 Auto Sampler Operator’s Manual

Installing the Auto Sampler

you lift them. Tilted sample vials in dicate an improperly placed r ack, which must be corrected before you operate the Auto Sampler.

3 Pl a ce the next sampl e via l r a ck to the ri gh t of the previous ra ck

so th a t th e feet on t he r a ck ’s u nd er sid e en ga g e th e l oca t in g ri bs on the sample tray’s surfac e.

Ensure that the rack is not tilted and is properly placed.

4 Repeat step 3 until you place all the sample vial racks.

When viewed from the front of the ASX-260, the sample vial racks should now be arran ged on the sample tray as follows: rack #1 at th e extreme left position, rack #2 at the left center position, rack #3 at the right center po sition, and rack #4 at the extreme right position.

Establishing External Connections

WARNING

The next step in the installation process involves connecting the ASX-260 Auto Sampler to the power source and to an analytical instrument. The following sections explain how to establish these connections.

Connecting the Auto Sampler to the Po wer Source

A voltage-specific external desktop power supply is supplied with each ASX-260 Auto Sampler.

Use only this external desktop power supply or an exact replacement.

To connect the Auto Sampler to a power source, plug the external desktop power supply cord into the power connector located on the back panel of the Auto Sampler. Then, plug the power supply’s power cord into a 100–240-VAC ±10%, 50/60-Hz utility power outlet.

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Installing the Auto Sampler

Connecting the ASX-260 to an Analytical Instrument

You can connect the Auto Sampler directly to a sample introduction peristaltic pump and then to any sample introduction device, such as the CETAC U-5000AT complete the following steps:

or U-6000AT+ Ultrasonic Nebulizer . To do so,

1 Determine the length of the sample transfer tubing you need,

and cut it to siz e.

2 Connect the free end of the sa mpl e transfer tu bin g to the inlet of

the analytical instrument’s pe ristaltic pump tubing.

Connecting the ASX-260 Auto Sampler to the Host Compute r

You cannot operate the ASX-260 Auto Sampler until you establish a communications interface between the Auto Sampler and the host computer. It is through this interface that the host computer directs the operation of the ASX-260 Auto Sampler. The ASX-260 Auto Sampler supports the following two communications protocols:

• The serial ( RS-232C) protoco l is the standard c onfigu ration. There are two RS-232C serial ports on the ASX-260, an d a serial in terface kit is shipped with the A uto Sampler.

• The parallel (IEEE-488) protocol is less common than the serial configu r ation. An IEEE-488 interface kit is av ailable as an option al accessor y to the ASX- 260. See Chapter 1, “Introduction,” for more information about this kit.

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Note:

Although the ASX-260 supports both serial and IEEE communications protocols, the host computer governs which protocol is used. To determine which protocol is required f or the analytical instrument you are using, ref er to the hardware or software manual provided wit h the instrument. The following sections explain how to establish a communications interface using a serial protocol and using an IEEE protocol.

CAUTION

When interconnecting any computing devices, keep the communications cables away from sources of electromagnetic or radio frequency (RF) interference, such as electric motors, transformers, fluorescent light ballasts, or RF energy sources. Limit cable runs for RS-232C to less than 16 meters. If these conditions cannot be satisfied, use low-impedance, fully shielded cables to provide satisfactory operation. The cables are available from many sources, but you will need to specify the correct mating connectors and “straight-through” (DTE-DCE) wiring.

Establishing a Serial Communications Interface

The serial interface kit provided with the ASX-260 Auto Sampler includes an interface cable equipped with two modular port adapters. Use the interface kit to establish a serial communications interface with the host computer. To do so, complete the following steps:

1 Plug one end of the cable into the host computer’s serial (COM)

port selected for Auto Sampler communications.

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Installing the Auto Sampler

Make sure that the COM port you s elect m a tches the port selected in the host computer’s software.

2 Finger tighten both screws of the cable adapter.

Note:

If a host computer serial port with a DB9F, a DB25M, or a DB25F connector (9 pin D-submini receptacle or 25 pin D-submini plug or receptacle) must be used, use the mating connec tor from the CETAC Technologi es univ ersal port adapter ki t. You can order the adapter kit from CETAC Technologies or purchase an adapter locally to convert the serial port to a DB9M. Do not use a “null modem” ad apter.

3 Connect the other end of the cable to the ASX-260 COM1 port.

CAUTION

Ensure that you are connecting the adapter to the COM1 port. Connecting the adapter to the COM 2 port on the Auto Sampler will cause a malfunction. The Auto Sampler COM 2 port is used for communications to other devices other than the host computer.

4 Finger tighten both sc rews of the cable adapter.

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Installing the Auto Sampler

Establishing an IEEE Communications Interface

Before you can establish an IEEE communications interface with the host computer, you must have the IEEE-488 interface kit, which includes a conv erter box and an IEEE-488 cable. Use the IEEE-488 kit to establish a parallel interface with the host computer. To do so, complete the following steps:

1 Connect the converter box according to the manufacturer’s

instructions.

Manufacturer’s instructions are provided with the kit.

2 Plug one end of the cable into the serial port on the 232/488

conver ter box.

3 Finger tighten both screws of the cable adapter.

CAUTION

4 Connect the other end of the cable to the ASX-260 COM1 port.

5 Finger tighten both screws of the cable adapter.

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Verifying Insta llation

ASX-260 Auto Sampler Operator’s Manual

Verifying Installation

Once installation of the ASX-260 Auto Sampler is complete, it is important to verify that you have in stalled it correctly . Attempting to use it b e f o re ensur ing that it is installed correctly may result in damage to the Auto Sampler.

Verifying installation of the Auto Sampler consists of two parts:

• ensuring that the communications interface between it and the host computer is working

• ensuring that the sample probe functions properly.

This chapter explain s how to test the abo ve ite ms befor e u sing the Auto Sampler.

Note:

The procedures given in thi s chapter are for use in a W indows® 95 or Windows® NT environment.

Testing the Interface

If the communications interface between the Auto Sampler and the host computer is not established correctly, the Auto Sampler will not function . Befor e you test the in terface , ensu re that th e commun ication port connectors are properly attached between the host computer and the Auto Sampler.

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Verifying Installation

Note:

The fol lowing procedures assume that you have opened W indows® 95 or Windows® NT and the Program Manager w indow is showing.

To test the communications interface, complete the following steps:

1 S ta rt the host computer and go to the m ain Windows® screen.

2 Turn on power to the Auto Sampler.

3 Click the start button in the lower left corner of the Program

Mana ger window.

A selection list will appear.

4 Select Programs>>>Accessorie s>>>Hyperterminal and double-

click.

The Hyperterminal®1 window appears (Figure 4–1).

Figure 4–1.

Hyperterminal i s a registered tr ademark of Hilgraeve, Inc.

Example of Hyperterminal® Window.

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ASX-260 Auto Sampler Operator’s Manual

Verifying Installation

5 Double click on the Hyperterminal® icon .

The Connection Description box appears (Figure 4–2).

Figure 4–2.

Connection Description Box.

6 T ype the name C O M 1 _ tes t f or t h e c on n ec t i on a n d ch o ose an icon

from the list given, and click OK .

The phone number box appears (Figure 4-3).

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ASX-260 Auto Sampler Operator’s Manual

Verifying Installation

Figure 4-3.

Phone Number Box.

7 Select Direct to COM1 in the Connect Using box. Click OK.

The COM1 Properties box appears (Figure 4-4).

Figure 4-4.

COM1 Properties Box.

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ASX-260 Auto Sampler Operator’s Manual

Verifying Installation

8 Change the bits per second to 9600, set the data bits to 8, the

parity to none, the stop bits to 1, the flow control to none, and click OK.

9 Select File>>>Prope rtie s.

The COM1_Test Properties box appears.

10 Se lect Settings on the COM_Te st Prope rties box and click on the

ASCII setup button on the lower right of the box.

The ASCII setup box appears (Figure 4-5).

Figure 4-5.

11 In the ASCII Setup box, select the following items:

a. Echo typed characters lo cally. b. Append line feeds to incoming line ends. c. Wrap lines that exceed terminal width.

4–6

ASCII Setup Box.

Click OK.

ASX-260 Auto Sampler Operator’s Manual

Verifying Installation

12 Click OK on the COM1_Test Properties box.

13 Type HOME at the cursor in the upper lef t of the main

Hyperterminal® scre en and press Enter.

The Auto Sampler resets, with the sample probe moving out and back into the home position. If the Au to Sampler does no t reset, see Ch apter 7, “Troubleshooting the Auto Sampler”.

Checkin g the Aut o S ampler Components

The following Auto Sampler components may be damaged during shipping or installation: the sample probe, the peristaltic pump tubin g, and the rin se station and tubin g. It is impor tant that you chec k these components for damage before you operate the Auto Sampler. To do so, complete the following steps:

1 Shut down and unplug the Auto Sampler.

2 Visu al l y in spect the sampl e probe, perista l tic pump tu bing , a nd

rinse station and tubing for leaks or sig ns of damage.

If you detect a leak or other damage to an Auto Sampler component, you must replace it. For more information, see the appropriate section in Chapter 6, “Maintaining the Auto Sampler”.

Testing the S ample Probe

The sample probe must descend into the center of each sample vial to ensure satisfactory sample uptake. Shipping or rough handling can disturb the Auto Sampler’s cabinet-to-base alignment. If it is incorrec tly aligned, the sample probe will n ot function pr operly. It is therefore important to test the sample probe before you actually run sampl e s with the Auto Sampler.

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Verifying Installation

Note:

Before testing t he sampl e probe, ensure that you hav e i nstal led al l Auto Sampler components correctly. Also, ensure that you have securely tightened all thumbscrews and connected the communications cable from the host computer to the COM1 port on the Auto Sampler.

Testing the sample probe involves observing the operation of the sample probe. To do so, complete the following steps:

1 Load the Auto Sampler sample tray with empty sample vial

racks.

For information about placing the sample vial racks, see Chapter 3, “Installing the Auto Sampler”.

2 Turn the Auto Sampler power switch on and veri fy that the LED

power indicator is on.

The LED power indicator is green in color. The indicator is located behind the z-drive assembly when it is in the home position.

3 Using the host computer control software, designate sample

positions at the left r ea r, l eft fr ont, ri g ht r ea r, and r ig h t fr ont of the sample tray.

4 Place sample vial racks and sample vials at the designated

positions.

5 Command the Auto Sampler to move the sample probe to the

designated sample positions. Check that the sample probe correctly accesses each position a n d that the probe descends into the center of each sample vial.

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Note:

If the Auto Sampler alignment is not correct, contact CETAC Technologies Customer Service and Support or an authorized representative.

4–9

Using the Auto Sampler

ASX-260 Auto Sampler Operator’s Manual

Using the Auto Sampler

Usin g the Auto Sampler

The ASX-260 Auto Sampler is both reliable and easy to use. Before using it, however, ensure that your lab environment provides operating conditions that will prolong the life of the ASX-260 Auto Sampler. Once the proper operating conditions are met, you can arrange the sample vial racks and start the Auto Sampler sequence run. When you finish using the Auto Sampler, you may need to flush the rinse station and flow path before shutting the Auto Sampler down.

This chapter explains how to create the proper operating conditions for using the ASX-260 Auto Sampler . It also explains h ow to arrange the sample vial racks, start and shu t dow n the Au to Sampler , and f lush the rinse station and flow path.

Establishing Optimal Operating Co nditions

The ASX-260 Auto Sampler operates reliably even under less than ideal conditions. It is not, however , indestructible. Malfu nction or damage can occur if specific operating conditions are not met. Meeting these conditions requires that you create the proper lab en viron ment, r eplace Auto Sampler components that wear out under normal use, and purchase the appropriate supplies for use with the Auto Sampler. The following sections explain how to meet these conditions.

Note:

Damage or malfunction that results from unsatisfactory operating conditions may constitute misuse and abuse and be excluded from warranty coverage.

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Creating the Lab Environment

To create satisfactory operating conditions in your lab environment, follow these guidelines:

• Operate the ASX-260 Auto Sampler in a conventional lab environment where the temperature is 50–95 °F (10–35 °C), the humidity is 20–70% non-condensing, and the unit is not exposed to excessive flammable or corrosive materials.

• Avoid rough handlin g of the ASX-260 Auto Sample r. If p ossible, do not expose the Auto Sampler to vibration or shock.

• Protect the Auto Sampler from long-term exposure to condensation, corrosive materials, solvent vapor, continual standing liquids, or large spills into the Auto Sampler cabinet or arm. Exposures of this type can damage the drive mechanisms as well as the electronics.

• Observe the same general electrostatic discharge precautions as with any other integrated circuit electronic dev ices. Low humidity environments, especially when combined with static-generating materials, require maximum care.

WARNING

Disc har ge stati c buil dup a nd gr ound to the Auto S ampl er ba se or ca binet before performing any ma intena nce. Do not touch or short-circuit bare conta cts, COM1, COM2, or auxiliary ports.

• Avoid using the ASX-260 Auto Sampler if strong electromagnetic interference, radio frequency interference, or radioactivity is present. Interference fields can cause erratic operation of the Au to Sampler. The Auto Sampler will not function properly if the level of radioactivity is above back ground.

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Replacin g Auto Sampler Components

The following ASX-260 Auto Sampler components wear out under normal use and must be replaced periodically.

• peristaltic pu mp tu bing

• sample probe

If you fail to replace these components when they deteriorate, the Auto Sampler will not function properly. For information about replacing Auto Sampler components, see Chapter 6, “Maintaining the Auto Sampler.”

Purchasing Suppli es

Because the life-span of the sample and standards vials varies, you should maintain an adequate supply of spare vials. When you need to purchase additional supplies, it is extremely important that you choose the appropriate sizes and materials.

When you purchase sample and/or standards vials, make sure they meet the following requirements:

• The diameter of the sample or standards vial matches the rack size you are using. The diameter of the standar ds vial is 28 millimete rs, plus or minus 1 millimeter.

• The height does not exceed 125 millimeters.

• Vials used for standards are conical-bottom centrifuge vials.

Anything other than tape red-bottom vials will not remain pro perly positioned in the rear standards rack.

• The material is c ompatible with the samples y ou are analy zing or the reference standards you are using. This requirement also applies to the peristaltic pump tubing.

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ASX-260 Auto Sampler Operator’s Manual

Using the Auto Sampler

WARNING

CAUTION

Use of mismatched sample vials and sample vial racks may resul t in ma l fun ction s or sa mpl e spil ls. Be sur e you r via l s m eet the given requirements.

To order additional supplies, refer to the CETAC Accessories and Supplies Catalog for the ASX-260 Auto Sampler.

Arra n ging the Sample Vial Racks

You can change the arrang ement of the sample vial racks to meet your needs. The ASX-260 Auto Sampler accommodates up to two sample vial racks of 21, 24, 40, 60, or 90 positions each. The Auto Sampler physically accepts any and all size combinations and arrangements of sample vial racks. However, you can use racks of mixed sizes only if the host computer’s software enables you to do so.

For more information about placing sample vial racks in the sample tray, see Chapter 3, “Installing the Auto Sampler.”

Incorrec tly defining the position c ount can result in sample spills and invalid analysis results .

Starting the Auto Sampler

Once you arrange the sample vial racks and ensure that the arrangement is correctly defined in the software, you can start the Auto Sampler and let it run until the sampling sequen ce is finished. T o do so, complete the following steps:

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ASX-260 Auto Sampler Operator’s Manual

Using the Auto Sampler

1 Ensure that the rinse station is properly connected.

For more information about proper connections, see Chapter 3, “Installing the Auto Sampler.”

2 Turn the ASX-260 Auto Sampler power switch on.

The green LED indicator along the Auto Sampler x-axis lights up when the power is on.

3 Adj ust the perista l tic pump sh oe until the desir ed rin se soluti on

flow rate is achieved.

4 Purge air from the rinse system by placing the rinse solution

uptake tubing in the rinse solution source and running the rinse solution through the rinse station.

Ensure there are no air bubbles visible in the rinse uptake tubing before you run samples with the ASX-260 Auto Sampler.

Note:

If you are flushing the rinse system dur ing init ial start up, fi rst use a 2% nitri c acid sol ution as the ri nse agent. Fl ush the rinse system a second time using deionized water as the rinse agent.

5 Access the host computer’s software and activate the Auto

Sampler program.

The ASX-260 Auto Sampler runs until it reaches the end of the sampling sequence.

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ASX-260 Auto Sampler Operator’s Manual

Using the Auto Sampler

Sh utting Down the Auto Sampler

To shut down the Auto Sampler, complete the following steps:

1 Drain the rinse system by removing the rinse solution uptake

tubin g from the rin se solu tion sourc e. L et the peri stal tic pump run unti l a l l solu tion dr a in s from th e tube atta ch ed to the rin se station outlet.

If you use a rinse solution other than deionized water, flush the rinse system with deionized water before shutting down the ASX-260 Auto Sampler. For more information, see the following section, “Flushing the Rinse Station and Flow Path.”

2 Release the pressure shoe on the peristaltic pump.

Releasing the pressure shoe decreases wear on the pump tubing.

3 Turn off the ASX-260 Auto Sampler power switch.

Flushing the Rinse S tation and Flow Path

Generally, you can operate the ASX-260 Auto Sampler without flushing the rinse system. Under normal circumstances, you can simply drain the rinse sy stem prior to shutting down the Auto Sampler . However, you need to flush the rinse station and flow path under two circumstances:

• during initial startup of the ASX-260 Auto Sampler after installation

• following the use of strong bases, acids, or organic solvents as rinse agents

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ASX-260 Auto Sampler Operator’s Manual

Using the Auto Sampler

Flushing the rinse system during initial startup of the ASX-260 Auto Sampler removes any contaminants that could cause interference during sample analysis. Flushing the rinse system after using strong rinse agents prevents degradation and failure of the flow path components.

To flush the rinse station and flow path, complete the following steps:

1 Insert the rinse uptake tubing into a deionized water source.

Note:

If you are f lushing the rinse system during initial startup, first use a 2% nitric acid solution as the rinse agent, followed by deionized water.

2 Run the rinse solution through the rinse station and flow path

for 5 to 10 minutes.

Once you flush the rinse system, you can proceed with the sampling sequence or drain the rinse system as part of the shutdown procedure. For information about running the sampling sequence, see “Starting the Auto Sampler ” earlier in this chapter. For more information about draining the rinse system, see the previous section, “Shutting Down the Auto Sampler.”

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Maintaining the Auto Sampler

Routine maintenance of the ASX-260 Auto Sampler consists of daily and weekly cleaning of specific Auto Sampler components. Routine maintenance also includes checking ASX-260 components for leaks or other damage. Additional periodic maintenance tasks may be req uired, including replacement of the following Auto Sampler components: peristaltic pump tubin g , sample pro be, rin se station tubing, and sample tray.

This chapter exp lains how to c lean the ASX-260 Au to Sampler, in spect it for leaks, and replace damaged components.

WARNING

Disc har ge stati c buil dup a nd gr ound to the Auto S ampl er ba se or ca binet before performing any ma intena nce. Do not touch or short-circuit bare contacts, COM1, COM2, or auxiliary port s.

Cleaning the Auto Sampler

Cleaning the ASX-260 Au to Sampler is the primary maintenance task you perform. Failure to do so regularly causes increased wear and reduces the Auto Sampler’s life.

You must clean the ASX-260 Auto Sampler both daily and weekly to prevent damage and extend its life. It is especially important to clean up spills and remove contaminants, such as abrasives, from the Auto Sampler’s moving parts. It may also be necessary to chemically neutralize spills. The following sections explain daily and weekly cleaning procedures.

ASX-260 Auto Sampler Operator’s Manual

Maintaining the Auto Sampler

Daily External Cleaning

Use of the ASX-260 Auto Sampler often results in spills on Auto Sampler components such as the sample tray. Good maintenance requires that you clean the Auto Sample r daily. To do so, c omplete th e following steps:

1 Shut down and unplug the Auto Sampler.

For infor mation abou t shutting down the Auto Samp ler, see Chapter 5, “Using the Auto Sampler.”

2 Wipe the sa mple tra y, Auto Sa mpl er ca binet, a nd Auto S am pler

arm using a towel dampened with a lab-grade cleaning agent.

CAUTION

Do not allow the cleaning agent to come into contact with the lead screws. Also, never lubricate either of the two lead screws.

3 Repeat step 2, using a towel dampened with clear water.

This process removes any remaining contaminants.

4 Dry the sample tray, Auto Sampler ca binet, and Auto Sampler

arm using a dry towel.

The ASX-260 Auto Sampler must be thoroughly dry before you turn the Auto Sampler pow e r on.

Weekly Cleaning

Although cleaning it daily r emoves spills and con taminants from most of the Auto Sampler componen ts, it is necessary to c lean the ASX-260 Auto Sampler more thoroughly once a week. To do so, complete the following steps:

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ASX-260 Auto Sampler Operator’s Manual

Maintaining the Auto Sampler

1 Shut down and unplug the Auto Sampler.

2 Remove the sample tray.

For information about removing the sample tray, see “Replacing the Sample Tray” later in th is ch apte r.

3 W ipe l o os e pa rticles o ff the Y-axis lea d scr ew with a d ry, lin t-free

cloth.

The Y-axis lead screw is a large metal screw located inside the Auto Sampler arm tubing , as s h own in Figure 6–1.

Figure 6–1.

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Z-Drive Assembly on Auto Sampler Arm.

ASX-260 Auto Sampler Operator’s Manual

Maintaining the Auto Sampler

WARNING

Never lubricate the lead screws. The lead screw nuts are compounded with a dry film lubricant. Oiling the lead screws will cause gumming, galling, and binding of the sample probe asse mbly.

4 Wipe th e Auto Sa mpl er exterior and base until they a re clea n,

using a towel dampened with a lab-grade cleaning agent, followed by a towel dampened with clear water.

Pay special attentio n to the slider bloc k and gu ide rails alo ng the tube of the Auto Sampler arm.

5 Wash the sample tray in a warm detergent solution.

Make sure you remove all spills and stains.

6 Rinse the sample tray with water and then dry it.

Ensure tha t the sampl e tray is thoroughly dry.

7 Replace the sample tray on the Auto Sampler base.

For information about replacing the tray, see “Replacing the Sample Tray” later in this chapter.

Checking for Le aks

Several of the Auto Sampler components have a limited life and will wear out under normal use: the sample probe, the peristaltic pump tubing, and the rinse station and tubing. Standard maintenance procedures require that you periodically check these components for leaks. To do so, complete the following steps:

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ASX-260 Auto Sampler Operator’s Manual

Maintaining the Auto Sampler

1 Shut down and unplug the Auto Sampler.

2 Visu al l y in spect the sampl e probe, perista l tic pump tu bing , a nd

rinse station and tubing for leaks or signs of deterioration.

If you detect a leak or other damage to an Auto Sampler component, you must replace it. For more information, see the appropriate section in this chapter.

Replacing Peristaltic Pump Tubing

Routine maintenance of the ASX-260 Auto Sampler includes replacement of the peristaltic pump tubing. Because of the operating nature of peristaltic pumps, the tubing will probably be the most frequently replaced item on the Auto Sampler. If you use strong bases, acids, or solvents as rinsing agents, the tubing may break down rapidly.

To replace the peristaltic pump tubing, complete the following steps:

1 Shut down and unplug the Auto Sampler.

2 Release the pressure shoe and remove the old tubing.

Carefully pull or cut the old tubing to remove it.

3 Replace the pump tubing by pushing the new tubing onto the

mounting block fittings.

Replace the new tubing carefully. Damage can result if you apply too much force.

4 Reconnect the pressure shoe.

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Maintaining the Auto Sampler

Replacing the Sample Probe

You must replace the sample probe if it is leaking or shows other signs of deterioration. To do so, complete the following steps:

1 Shut down and unplug the Auto Sampler.

2 Remove the old sample probe and tubing.

Be careful not to use excessive force when removing the sample probe. Applying too much force can result in damage to the z-drive assembly.

3 Ins tall the new sample probe.

For information about installing the sample probe, see Chapter 3, “Installing the Auto Sampler.”

4 With the z-drive in the full -up position, hold the z-axis slider and

move the sample probe tube up and down so that 3 to 6 millimeters extends below the sample probe guide plate.

Replacing the Rinse Station Tubing

If the rinse station tubing is typically exposed to deionized water as a rinsing agent, you do not need to replace it often. However, if you use other rinsing agents, such as acids or solvents, the tubing is likely to deteriorate more rapidly. To replace the rinse station tubing, complete the following steps:

1 Shut down and unplug the Auto Sampler.

2 M ove the A ut o S a mpl er a rm 20 to 3 0 c ent im eter s a wa y f rom th e

home position by gently pushing it.

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ASX-260 Auto Sampler Operator’s Manual

Maintaining the Auto Sampler

Moving the Auto Sampler arm ensures th at the sample probe will not be damaged while you replace the rinse station tubing.

3 Disconnect the rinse s oluti on uptake and drain tubing.

Apply only a linear force when removing the tubing to prevent the fittings from breaking.

4 Remove the rinse station tube by completing the following steps:

a Rotate the rinse station tube counterclockwise 1/4 turn. b Remove the rinse station tube from the mounting block by

lifting the tube straight up.

Repla c e t h e r ins e st ati o n tube by pu shin g th e n ew r ins e s t ati on

tube into the mounting block and rotating it clockwise 1/4 turn.

6 Reconnect the rinse solution uptake and drain tubing.

Apply only a linear force when replacing the tubing to prevent the fittings from breaking.

7 Move the Auto Sampler arm back to the home position.

Replacing the Sample Tray

Cleaning the ASX -260 Au to Sampler sample tray each w eek ex ten ds its life and makes frequent replacement unnecessary. However, if the sample tray needs to be replaced, complete the following steps:

1 Shut down and unplug the Auto Sampler.

2 Remove all sample vial racks.

3 M ove the A ut o S a mpl er a rm 20 to 3 0 c ent im eter s a wa y f rom th e

home position by gently pushing it.

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ASX-260 Auto Sampler Operator’s Manual

Maintaining the Auto Sampler

Moving the Auto Sampler ar m ensur es that the sample probe assembly will not be damaged while you replace the sample tray.

4 Raise the rinse station tube approximately 2 centimeters.

5 Ra i se the front edge of the da m a g ed tray at l ea st 2. 5 centi meters

and slide it forward.

If you have difficulty removing the sample tray, raise the front edge higher be f ore sliding it forward.

6 Install the new tray.

7 Lower the rinse station tube.

Ensure the rinse station tube is positioned securely.

8 Move the Auto Sampler arm back to the home position.

9 Replace the sample vial racks.

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T rou bleshooting the Auto Sampler

Troubleshooting the Auto Sampler

The ASX-260 Auto Sampler is both easy to operate and reliable. However, problems with it may occur. When the Auto Sampler does not function properly, isolate the problem to determine if it originates in the host computer, the analytical instrument, the RS-232 cable, or the Auto Sampler. If you determine the problem is in the ASX-260 , check the power system, the communications interface, or the sample probe assembly to find the cause of the problem and resolve it.

This chapter explains how to troubleshoot ASX-260 Auto Sampler problems. If you cannot solve a problem using the steps given in this chapter, contact CETAC Technologies Customer Service and Support.

Power System Problems

A possible cause of ASX -260 Auto Sampler malfu nction is a pr oblem in the power system. If the Auto Sampler is not func tional, ther e may be no power getting to it. If this is the case, the green LED power indicator will be off. To troubleshoot this problem, complete the following steps:

1 Check the wall outlet and see if the external power supply is

plugged in.

2 Check that the power switch of the external power supply is

turned on.

ASX-260 Auto Sampler Operator’s Manual

Troubleshooting the Auto Sampler

Interface Problems

Operation of the ASX-260 Auto Sampler is directed by the host computer. A malfunction of the Auto Sampler can in dicate a problem with the RS-232 cable or with the c onfiguration of the software o n the host computer. The following sections explain how to troubleshoot these problems.

RS-232 Cable Problems

The first step in troubleshooting interface problems is to check the RS-232 cable. To do so, complete the following steps:

1 Check the Auto Sampler power switch to ensure it is on.

2 Check the RS-232 cable to ensure it is plugged in to the COM1

port on the Auto Sampler.

If the cable is plugged in, ensure that it is tightened properly.

3 Check the host computer to ensure that the RS-232 cable is

connected to the appropriate COM port.

If the cable is plugged in, ensure that it is tightened properly. For more information about connecting the RS-232 cable, see Chapter 3, “Installing the Auto Sampler.”

Software Configuration P roblems

If the RS-232 cable is connec ted properly and the Auto Sampler is still not communicating with the host computer, ensure that the host software is configured correctly. To do so, complete the following steps:

1 Run the host software and ensure that the instrument is

functioni ng properly.

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ASX-260 Auto Sampler Operator’s Manual

Troubleshooting the Auto Sampler

2 Check the software configuration for the correct COM port

sel ection and bau d rate (9600, N, 8, 1).

If the wrong port or baud rate is selected, change the configuration. For information about changing the software configuration, see Chapter 4, “Verifyin g Installation.”

Z-Drive Assembly Problems

A ASX-260 Auto Sampler malfunction may be c aused by a problem in the z-drive assembly . You can easily deter mine that a malfunction is related to the z-drive assembly if you hear a loud chattering noise when the ASX-260 pow er switch is on or if the sample probe is not mov ing. To troubleshoot z-drive assembly problems, complete the following steps:

1 Ensure that the Y-axis slider block and z-drive assembly are

installed.

If the z-drive assembly is not installed, fo llow the instr uctions pro vided in Chapter 3, “Installing the Auto Sampler ,” to install it. If the z-driv e assembly is already installed, co ntinue with step 2.

2 Check the Y-axis block home position flag for damage.

The home position flag is shown in Figure 7–1. If the flag is damaged, you must r eplace the en tire y-axis slider bloc k. For inf ormation abo ut mounting the y-axis slider block on the Auto Sampler arm, see Chapter 3, “Installing th e Auto Sampler.”

If the home position flag is undamaged, continue with step 3.

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ASX-260 Auto Sampler Operator’s Manual

Troubleshooting the Auto Sampler

Figure 7–1.

Z-Drive Assembly with Y-Axis Block Home Position Flag.

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Troubleshooting the Auto Sampler

3 Check t hat th e sample probe i s moving.

If the sample probe is binding, free the sample probe assembly.

Note:

If you cannot free the z-drive assembly, you will need to replace it. See Chapter 3, “Installing the Auto Sampler,” for inf or m ati on about m ounti ng a new z-driv e assembly. You can order a new z-dri ve assembl y from CETAC Technologies.

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Glossary

This glossary defines the terms used in the ASX-260 Auto Sampler Operator’s Manual.

analytical instrument

instrument, typically an ICP-AES or ICP-MS, to which the Auto Sampler is connected.

Auto Sampler arm

that extends from the front of the ASX-260 cabinet. It governs the left / right and forward / backward travel of the z-drive assembly.

I/O ports

for establishing communication between the ASX-260 and the host computer or other external devices.

perista lti c pump

pump controlling the movement of the rinse solution to the rinse station.

rinse solution

typically deionized water, used to clean the sample probe.

The connections used

The on-board

The solution,

The

The arm

Y-axis slider block

componen t that fits over the Auto Sampler arm and executes the forward/backward movement of the z-drive assembly along the Auto Sampler arm.

Z-axis rotor

that contr ols the mov emen t of th e Z-axis slider.

Z-axis slider

assembly component th at gov erns the up-and-down travel of the sample probe.

The component

The z-drive

The

rinse station

component used to clean the sample probe with a rinse solution.

sample probe

moves the analyte from the sample vial to the sample transfer tubing.

The Au to Sampler

The tube that

CETAC ASX-260 Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual