Agilent 7820A Chromatograph Safety Manual PDF

Agilent 7820A Gas Chromatograph

Safety Manual

Agilent Technologies

2 7820A GC Safety Manual

Notices Agilent Technologies, Inc. 20092015

No part of this manual may be reproduced in any form or by any means (including elec- tronic storage and retrieval or translation into a foreign language) without prior agree- ment and written consent from Agilent Technologies, Inc. as governed by United States and international copyright laws.

Manual Part Number G4350-90010

Edition Fifth edition, August 2016 Fourth edition, June 2015 Third edition, June 2011 Second edition, June 2009 First edition, March 2009

Printed in USA and China

Agilent Technologies, Inc. 412 Ying Lun Road Waigoaqiao Freed Trade Zone Shanghai 200131 P.R.China

412

800820 3278

Warranty

The material contained in this document is provided as is, and is subject to being changed, without notice, in future editions. Further, to the maximum extent permitted by applicable law, Agilent disclaims all warranties, either express or implied, with regard to this manual and any information contained herein, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. Agilent shall not be liable for errors or for incidental or consequential damages in connection with the furnishing, use, or performance of this document or of any information contained herein. Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms, the warranty terms in the separate agreement shall control.

Technology Licenses The hardware and/or software described in this document are furnished under a license and may be used or copied only in accor- dance with the terms of such license.

Restricted Rights If software is for use in the performance of a U.S. Government prime contract or subcon- tract, Software is delivered and licensed as Commercial computer software as defined in DFAR 252.227-7014 (June 1995), or as a commercial item as defined in FAR 2.101(a) or as Restricted computer soft- ware as defined in FAR 52.227-19 (June 1987) or any equivalent agency regulation or

contract clause. Use, duplication or disclo- sure of Software is subject to Agilent Tech- nologies standard commercial license terms, and non-DOD Departments and Agencies of the U.S. Government will receive no greater than Restricted Rights as defined in FAR 52.227-19(c)(1-2) (June 1987). U.S. Government users will receive no greater than Limited Rights as defined in FAR 52.227-14 (June 1987) or DFAR 252.227-7015 (b)(2) (November 1995), as applicable in any technical data.

Safety Notices

CAUTION

A CAUTION notice denotes a hazard. It calls attention to an operating procedure, practice, or the like that, if not correctly performed or adhered to, could result in damage to the product or loss of important data. Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met.

WARNING

A WARNING notice denotes a hazard. It calls attention to an operating procedure, practice, or the like that, if not correctly performed or adhered to, could result in personal injury or death. Do not proceed beyond a WARNING notice until the indicated conditions are fully understood and met.

Agilent 7820A Gas Chromatograph Safety Manual

Introduction

Important Safety Warnings 4

Hydrogen Safety 7

Uncombusted Hazardous Gases 9

Micro-Electron Capture Detector (ECD) 10

Fuses and Batteries 12

Safety and Regulatory Certifications 13

Intended Use 17

Cleaning 17

Recycling the Product 17

3Agilent Technologies

Introduction

Important Safety Warnings

4

Before moving on, there are several important safety notices that you should always keep in mind when using the Agilent 7820A GC.

Many internal parts of the GC carry dangerous voltages

WARNING When handling/using chemicals for preparation or use within the GC, all applicable local and national laboratory safety practices must be followed. This would include, but is not limited to, correct use of Personal Protective Equipment (PPE), correct use of storage vials, and correct handling of chemicals, as defined in the laboratorys internal safety analysis and standard operating procedures. Failure to adhere to laboratory safety practices could lead to injury or death.

If the GC is connected to a power source, even if the power switch is off, potentially dangerous voltages exist on:

The wiring between the GC power cord and the AC power supply, the AC power supply itself, and the wiring from the AC power supply to the power switch.

With the power switch on, potentially dangerous voltages also exist on:

All electronics boards in the instrument.

The internal wires and cables connected to these boards.

The wires for any heater (oven, detector, inlet, or valve box).

All these parts are shielded by covers. With the covers in place, it should be difficult

WARNING to accidentally make contact with dangerous voltages. Unless specifically instructed to, never remove a cover unless the detector, inlet, or oven are turned off.

If the power cord insulation is frayed or worn, the cord must be replaced. Contact

WARNING your Agilent service representative.

7820A GC Safety Manual

Introduction

Do not use an Uninterruptable Power Supply (UPS) with a GC

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If the area where the GC is located suddenly loses power, an unsafe condition can result if the GC remains powered on. Do not use the GC with a UPS.

Electrostatic discharge is a threat to GC electronics

The printed circuit (PC) boards in the GC can be damaged by electrostatic discharge. Do not touch any of the boards unless it is absolutely necessary. If you must handle them, wear a grounded wrist strap and take other antistatic precautions. Wear a grounded wrist strap any time you must remove the GC right side cover.

Many parts are dangerously hot

Many parts of the GC operate at temperatures high enough to cause serious burns. These parts include but are not limited to:

The inlets

The oven and its contents

The detectors

The column nuts attaching the column to an inlet or detector

The valve box

You should always cool these areas of the GC to room temperature before working on them. They will cool faster if you first set the temperature of the heated zone to room temperature. Turn the zone off after it has reached the setpoint. If you must perform maintenance on hot parts, use a wrench and wear thermally protective gloves. Whenever possible, cool the part of the instrument that you will be maintaining before you begin working on it.

WARNING Be careful when working behind the instrument. During cool-down cycles, the GC emits hot exhaust which can cause burns.

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Introduction

Oven thermal leaks

WARNING The insulation around the inlets, detectors, valve box, and the insulation cups is made of refractory ceramic fibers. To avoid inhaling fiber particles, we recommend the following safety procedures: ventilate your work area; wear long sleeves, gloves, safety glasses, and a disposable dust/mist respirator; dispose of insulation in a sealed plastic bag; wash your hands with mild soap and cold water after handling the insulation.

Objects passing through the oven door seal can cause thermal leaks which create

WARNING hazardous hot spots which cause burns and melt equipment.

Do not allow wiring or temperature probes to pass through the oven door jam. Agilent recommends using one of the access holes.

7820A GC Safety Manual

Introduction

Hydrogen Safety

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Hydrogen gas may be used as carrier gas, and/or as fuel for the FID and NPD. When mixed with air, hydrogen can form explosive mixtures.

WARNING When using hydrogen (H2) as the carrier gas or fuel gas, be aware that hydrogen gas can flow into the GC oven and create an explosion hazard. Therefore, be sure that the supply is turned off until all connections are made and ensure that the inlet and detector column fittings are either connected to a column or capped at all times when hydrogen gas is supplied to the instrument.

Hydrogen is flammable. Leaks, when confined in an enclosed space, may create a fire or explosion hazard. In any application using hydrogen, leak test all connections, lines, and valves before operating the instrument. Always turn off the hydrogen supply at its source before working on the instrument.

Hydrogen is a commonly used GC carrier gas. Hydrogen is potentially explosive and has other dangerous characteristics.

Hydrogen is combustible over a wide range of concentrations. At atmospheric pressure, hydrogen is combustible at concentrations from 4% to 74.2% by volume.

Hydrogen has the highest burning velocity of any gas.

Hydrogen has a very low ignition energy.

Hydrogen that is allowed to expand rapidly from high pressure into the atmosphere can self-ignite due to an electrostatic spark.

Hydrogen burns with a nonluminous flame which can be invisible under bright light.

Hydrogen shutdown

Hydrogen gas may be used as a carrier or as fuel for some detectors. When mixed with air, hydrogen can form explosive mixtures.

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Introduction

The GC monitors inlet and auxiliary gas streams. If a stream shuts down because it is unable to reach its flow or pressure setpoint and if that stream is configured to use hydrogen, the GC assumes that a leak has occurred and declares a hydrogen safety shutdown. The effects are:

The offending channel and any associated channels (such as septum purge) are set off.

The split valves in the split/splitless inlets open.

The oven (heater and fan) turns off.

The small heated zones are turned off.

An alarm tone sounds.

To recover from this state, fix the cause of the shutdown (tank valve closed, serious leak, others). Turn the instrument off, then back on.

Measuring hydrogen gas flows

WARNING The GC cannot always detect leaks in inlet and/or detector gas streams. For this reason, it is vital that column fittings should always be either connected to a column, or have a cap or plug installed. The H2 streams must be configured for hydrogen so that the GC is aware of hydrogen use.

Do not measure hydrogen together with air or oxygen. This can create explosive

WARNING mixtures that may be ignited by the automatic ignitor.

To avoid this hazard: Turn the automatic ignitor off before you begin. Always measure gases separately.

When measuring gas flows on a detector using hydrogen for the detector flame or carrier gas, measure the hydrogen flow separately. Never allow an air stream to enter when hydrogen is present in the flow meter.

7820A GC Safety Manual

Introduction

Uncombusted Hazardous Gases

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During normal operation of the GC with many detectors and inlets, some of the carrier gas and sample vents outside the instrument through the split vent, septum purge vent, and detector exhaust. If any sample components are toxic or noxious, or if hydrogen is used as the carrier gas, these exhausts must be vented to a fume hood. Place the GC in the hood or attach a large diameter venting tube to the outlet for proper ventilation.

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Introduction

Micro-Electron Capture Detector (ECD)

10

The ECD contains a cell plated with 63Ni, a radioactive isotope. The beta particles released at the energy level in the detector have little penetrating powerthe surface layer of the skin or a few sheets of paper will stop most of thembut they may be hazardous if the isotope is ingested or inhaled. For this reason, handle the cell with care. Cap the detector inlet and outlet fittings when the detector is not in use. Never introduce corrosive chemicals into the detector. Vent detector exhaust outside the laboratory environment.

Refer to the safety documentation provided with the detector for important details about safety, maintenance, and compliance with local government regulation.

Materials that may react with the 63Ni source, either to form volatile products or to

WARNING cause physical degradation of the plated film, must be avoided. These materials include oxidizing compounds, acids, wet halogens, wet nitric acid, ammonium hydroxide, hydrogen sulfide, PCPs, and carbon monoxide. This list is not exhaustive but indicates the kinds of compounds that may cause damage to 63Ni detectors.

In the extremely unlikely event that the oven or the detector-heated zone should go

WARNING into thermal runaway (maximum, uncontrolled heating in excess of 400 C) and the detector remains exposed to this condition for more than 12 hours, take the following steps:

1 After turning off the main power and allowing the instrument to cool to room temperature, cap the detector inlet and exhaust vent openings. Wear disposable plastic gloves and observe normal laboratory safety precautions.

2 Contact your local Agilent Technologies sales office or distributor for ECD disposal instructions

3 Include a letter stating the condition of abuse.

It is unlikely, even in this very unusual situation, that radioactive material will escape the cell. However, permanent damage to the 63Ni plating within the cell is possible; therefore, the cell must be returned for exchange.

7820A GC Safety Manual

Introduction

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Do not use solvents to clean the ECD.

WARNING

You may not open the ECD cell unless authorized to do so by your local nuclear

WARNING regulatory agency. Do not disturb the four socket-head bolts. These hold the cell halves together. United States customers removing or disturbing them is a violation of the terms of the exemption and could create a safety hazard.

When handling ECDs:

Never eat, drink, or smoke.

Always wear safety glasses when working with or near open ECDs.

Wear protective clothing such as laboratory jackets, safety glasses, and gloves, and follow good laboratory practices. Wash hands thoroughly with a mild nonabrasive cleaner after handling ECDs.

Cap the inlet and outlet fittings when the ECD is not in use.

Connect the ECD exhaust vent to a fume hood or vent it to the outside. See the latest revision of 10 CFR Part 20 (including Appendix B), or the applicable state regulation. For other countries, consult with the appropriate agency for equivalent requirements.

Agilent Technologies recommends a vent line internal diameter of 6 mm (1/4-inch) or greater. With a line of this diameter, the length is not critical.

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Introduction

Fuses and Batteries

12

The GC requires fuses and batteries for proper operation. These must only be accessed by Agilent trained service personnel.

Table 1 AC board fuses

Fuse designation Line voltage Fuse rating and type

100/120 V GC

F1, F2 All 8 A, 250 VAC, IEC 127 type f (non-time delay), glass body

F3, F4 All 20 A, 250 VAC, IEC 127 type f (non-time delay), ceramic body

200/220/230/240 V GC

F1, F2 All 6 A, 250 VAC, IEC 127 type f (non-time delay), glass body

F3, F4 All 20 A, 250 VAC, IEC 127 type f (non-time delay), ceramic body

Table 2 Logic board battery

Battery designation Battery rating and type

BT1 3-volt lithium-poly carbon battery, .048A-HR, Panasonic model BR 1225

7820A GC Safety Manual

Introduction

Safety and Regulatory Certifications

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The Agilent 7820A GC conforms to the following safety standards:

Canadian Standards Association (CSA): C22.2 No. 61010-1

CSA/Nationally Recognized Test Laboratory (NRTL): ANSI/UL 61010-1

International Electrotechnical Commission (IEC): 610101, 60101-2-010, 60101-2-081

EuroNorm (EN): 610101

The Agilent 7820A GC conforms to the following regulations on Electromagnetic Compatibility (EMC) and Radio Frequency Interference (RFI):

CISPR 11/EN 55011: Group 1, Class A

IEC/EN 61326

AUS/NZ N10149

The 7820A GC complies with the following company standard:

Q/YXFG27

This ISM device complies with Canadian ICES-001. Cet appareil ISM est conforme a la norme NMB001 du Canada.

The Agilent 7820A GC is designed and manufactured under a quality system registered to ISO 9001. Declaration of Conformity available.

Instructions for Disposal of Waste Equipment by Users in the European Union. This symbol on the product or its packaging indicates that this product must not be disposed of with other waste. Instead, it is your responsibility to dispose of your waste equipment by handing it over to a designated collection point for the recycling of waste electrical and electronic equipment. The separate collection and recycling of your waste equipment at the time of disposal will help conserve natural resources and ensure that it is recycled in

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14

Introduction

a manner that protects human health and the environment. For more information about where you can drop off your waste equipment for recycling, please contact your local city recycling office or the dealer from whom you originally purchased the product.

South Korean Class A EMC Declaration

This equipment is Class A suitable for professional use and is for use in electromagnetic environments outside of the home.

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Information

The Agilent Technologies 7820A Gas Chromatograph meets the following IEC (International Electro-technical Commission) classifications: Safety Class I, Transient Overvoltage Category II, Pollution Degree 2.

This unit has been designed and tested in accordance with recognized safety standards and is designed for use indoors in non-classified locations. If the instrument is used in a manner not specified by the manufacturer, the protection provided by the instrument may be impaired. Whenever the safety protection of the Agilent 7820A Gas Chromatograph has been compromised, disconnect the unit from all power sources and secure the unit against unintended operation.

Refer servicing to qualified service personnel. Substituting parts or performing any unauthorized modification to the instrument may result in a safety hazard.

7820A GC Safety Manual

Introduction

Symbols

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Warnings in the manual or on the instrument must be observed during all phases of operation, service, and repair of this instrument. Failure to comply with these precautions violates safety standards of design and the intended use of the instrument. Agilent Technologies assumes no liability for the customers failure to comply with these requirements.

See accompanying instructions for more information.

Indicates a hot surface.

Indicates hazardous voltages.

Indicates earth (ground) terminal.

Indicates potential explosion hazard.

Indicates radioactivity hazard.

Indicates electrostatic discharge hazard.

Indicates a hazard. See the Agilent 7820A GC user documentation for the item labeled.

Indicates that you must not discard this electrical/electronic product in domestic household waste

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Introduction

Electromagnetic compatibility

16

This device complies with the requirements of CISPR 11. Operation is subject to the following two conditions:

This device may not cause harmful interference.

This device must accept any interference received, including interference that may cause undesired operation.

If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try one or more of the following measures:

1 Relocate the radio or antenna.

2 Move the device away from the radio or television.

3 Plug the device into a different electrical outlet, so that the device and the radio or television are on separate electrical circuits.

4 Make sure that all peripheral devices are also certified.

5 Make sure that appropriate cables are used to connect the device to peripheral equipment.

6 Consult your equipment dealer, Agilent Technologies, or an experienced technician for assistance.

7 Changes or modifications not expressly approved by Agilent Technologies could void the users authority to operate the equipment.

Sound Emission Certification for Federal Republic of Germany

Sound pressure

Sound pressure Lp < 70 dB(A) according to DIN-EN 27779.

Schalldruckpegel

Schalldruckpegel LP < 70 dB(A) nach DIN-EN 27779.

7820A GC Safety Manual

Introduction

Intended Use

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Agilent products must only be used in the manner described in the Agilent product user guides. Any other use may result in damage to the product or personal injury. Agilent is not responsible for any damages caused, in whole or in part, by improper use of the products, unauthorized alterations, adjustments or modifications to the products, failure to comply with procedures in Agilent product user guides, or use of the products in violation of applicable laws, rules or regulations.

Cleaning

To clean the unit, disconnect the power and wipe down with a damp, lint-free cloth.

Recycling the Product

For recycling, contact your local Agilent sales office.

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