490 Micro Gas Chromatograph User Manual

Agilent 490



Micro Gas

Chromatograph

User Manual

Notices

© Agilent Technologies, Inc. 2014

No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from



Agilent Technologies, Inc. as governed by

United States and international copyright laws.

Manual Part Number

G3581-90001

Edition

Third edition, February 2014

Printed in The Netherlands

Agilent Technologies, Inc.



P.O. Box 8033



4330 EA Middelburg



The Netherlands

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.

(June 1987) or DFAR 252.227-7015 (b)(2)

(November 1995), as applicable in any technical data.

Safety Notices

C A U T I O N

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.

Technology Licenses

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

WA R N I N G

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.

Restricted Rights Legend

If software is for use in the performance of a U.S. Government prime contract or subcontract, 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 software” as defined in FAR

52.227-19 (June 1987) or any equivalent agency regulation or contract clause. Use, duplication or disclosure of Software is subject to Agilent Technologies’ 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

Contents

1 Introduction

Safety Information

8

Important safety warnings

8

Hydrogen safety

8

Safety symbols

9

Safety and regulatory information

9

General safety precautions

10

Shipping Instructions

13

Cleaning 13

Instrument Disposal

13

2 Instrument Overview

Front View 16

Back View 17

Inside View

18

Carrier Gas Connection

21

Sample Gas 23

Handling a sample

23

Using the external filter unit 23

Heated sample lines

24

Connecting to a heated sample line 25

Power 26

Power source

26

Power Requirements

26

Disposal

26

Specifications 27

Ambient Pressure 27

Ambient Temperature

27

Maximum Operation Altitude

27

28

490 Micro GC User Manual 3

4

3 Installation and Use

Pre-Installation Requirements

30

Inspect the Shipping Packages 30

Unpack the Micro GC 31

Review the Packing List 32

Install the 490 Micro GC 33

Step 1: Install gas regulators and set pressures

33

Step 2: Connect carrier gas

33

Step 3: Connect to the checkout sample 33

Step 4: Connect to power

33

Step 5: Connect to the data system computer (or LAN) 34

Step 6a: Assign an IP address - for a Micro GC with main board

CP740010

34

Step 6b: Assign an IP address - for a Micro GC with main board

G3581-65000

37

Step 7: Note the Micro GC startup cycle

40

Step 8: Complete Micro GC configuration in the data system 40

Create the Test Method 41

Perform a Series of Runs 42

Shut Down Procedure

43

Long Storage Recovery Procedure 43

4 GC Channels

Carrier Gas

46

Micro Electronic Gas Control (EGC)

47

Injector 47

Column 48

Molsieve 5Å columns

49

CP-Sil 5 CB columns

50

CP-Sil CB columns

51

PoraPlot 10m column

52

Hayesep A 40 cm heated column 53

COX and AL203/KCI columns 54

MES (NGA) and CP-WAX 52 CB columns 55

Column conditioning

56

Backflush Option

57

Tuning 59

To disable backflush

59

TCD Detector 60

490 Micro GC User Manual

5 Communications

Access the Connection Ports 62

490 Chromatography Data Systems 63

Ethernet Networks 64

IP Addresses 65

Example network configurations 66

To restore the factory default IP address

69

To change the Micro GC network settings 70

Frequently Asked Questions (FAQ) 71

Glossary of network terms 71

External Digital I/O

73

External Analog I/O

74

Micro GC Cycle with Constant Pressure

75

Micro GC Cycle with Ramped Pressure 76

6 Errors

Error Handling 78

Error List 79


6 490 Micro GC User Manual

Agilent 490 Micro Gas Chromatograph

User Manual

1

Introduction

Safety Information 8

Shipping Instructions 13

Cleaning 13

Instrument Disposal 13

This chapter provides important information about using the

Agilent 490 Micro Gas Chromatograph (Micro GC) safely. To prevent any injury to you or any damage to the instrument it is essential that you read the information in this chapter.

7

8

1

Introduction

Safety Information

Important safety warnings

There are several important safety notices that you should always keep in mind when using the Micro GC.

WA R N I N G

When

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

Hydrogen safety

Hydrogen is a commonly used GC carrier gas. When mixed with air, hydrogen can form explosive mixtures and has other dangerous characteristics.

WA R N I N G

When using hydrogen (H

2

) as the carrier gas, be aware that hydrogen gas can create a fire or explosion hazard. Be sure that the supply is turned off until all connections are made.

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 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.

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


Introduction

1

Safety symbols

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 customer’s failure to comply with these requirements.



WARNING:



Shock hazard

WARNING:



Burn hazard

Instruction







Manual

Protective





Conductor terminal



Skin puncture

Static discharge

Warning





Do not touch

Indicates dangerous voltage. (Terminals fed from the interior by voltage exceeding

1000 V must be so marked.)



Indicates parts that may cause burns when

 touched.

Indicates that the user should refer to the manual before operating the equipment.

For protection against electrical shock in case of a fault. Used with field wiring terminals to indicate the terminal, which must be connected to the ground before operating equipment.

Indicates sharp or suddenly moving parts such as injection needles that may cause injury.

Indicates instrument contains parts that can be damaged by electrostatic discharge. Take care for proper grounding before handling.



Touching this item may result in damage to the instrument or personal injury.

Safety and regulatory information

This instrument and its accompanying documentation comply with the CE specifications and the safety requirements for electrical equipment for measurement, control, and laboratory use (CEI/IEC 1010-1)

C

CSA

US

and FCC-b.

This device has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment


1

Introduction

generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

NOTICE

This instrument has been tested per applicable requirements of EMC Directive as required to carry the

European Union CE Mark. As such, this equipment may be susceptible to radiation/interference levels or frequencies, which are not within the tested limits.

General safety precautions

Follow the following safety practices to ensure safe equipment operation:

• Perform periodic leak checks on all supply lines and pneumatic plumbing.

• Do not allow gas lines to become kinked or punctured. Place lines away from foot traffic and extreme heat or cold.

• Store organic solvents in fireproof, vented and clearly labeled cabinets so they are easily identified as either toxic, or flammable, or both types of materials.

• Do not accumulate waste solvents. Dispose of such materials through a regulated disposal program and not through municipal sewage lines.

WA R N I N G

This instrument is designed for chromatographic analysis of appropriately prepared samples. It must be operated using appropriate gases or solvents and within specified maximum ranges for pressure, flows, and temperatures as described in this manual. If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.


Introduction

1

WA R N I N G

It is the responsibility of the customer to inform Agilent customer support representatives if the instrument has been used for the analysis of hazardous samples, prior to any instrument service being performed or when an instrument is being returned for repair.

• Avoid exposure to potentially dangerous voltages.

Disconnect the instrument from all power sources before removing protective panels.

• When it is necessary to use a non-original power cord and plug, make sure the replacement cord adheres to the color coding and polarity described in the manual and all local building safety codes.

• Replace faulty or frayed power cords immediately with the same type and rating.

• Place this instrument in a location with sufficient ventilation to remove gases and vapors. Make sure there is enough space around the instrument for it to cool off sufficiently.

• Before plugging the instrument in or turning the power on, always make sure that the voltage and fuses are set appropriately for your local power source.

• Do not turn on the instrument if there is a possibility of any kind of electrical damage. Instead, disconnect the power cord and contact your local Agilent sales office.

• The supplied power cord must be inserted into a power outlet with a protective ground connection. When using an extension cord, make sure that the cord is also properly grounded.

• Do not change any external or internal grounding connections, as this could endanger you or damage the instrument.

• The instrument is properly grounded when shipped. You do not need to make any changes to the electrical connections or to the instrument chassis to ensure safe operation.

• When working with this instrument, follow the regulations for Good Laboratory Practices (GLP). Take care to wear safety glasses and appropriate clothing.

• Do not place containers with flammable liquids on this instrument. Spilling liquid over hot parts may cause fire.


1

Introduction

• This instrument may use flammable or explosive gases, such as hydrogen gas under pressure. Before operating the instrument be sure to be familiar with and to follow accurately the operation procedures prescribed for those gases.

• Never try to repair or replace any component that is not described in this manual without the assistance of an Agilent service engineer. Unauthorized repairs or modifications will result in rejection of warranty claims.

• Always disconnect the AC power cord before attempting any type of maintenance.

• Use proper tools when working on the instrument to prevent danger to you or damage to the instrument.

• Do not attempt to replace any battery or fuse in this instrument other than as specified in the manual.

• Damage can result if the instrument is stored under unfavorable conditions for prolonged periods. (For example, damage will occur if stored while subject to heat, water, or other conditions exceeding the allowable operating conditions).

• Do not shut off column flow when the oven temperature is high, since this may damage the column.

• This unit has been designed and tested in accordance with recognized safety standards and designed for use indoors.

• If the instrument is used in a manner not specified by the manufacturer, the protection provided by the instrument may be impaired.

• Substituting parts or performing any unauthorized modification to the instrument may result in a safety hazard.

• Changes or modifications not expressly approved by the responsible party for compliance could void the user's authority to operate the equipment.


Introduction

1

Shipping Instructions

If your Micro GC must be shipped for any reason, it is very important to follow these additional shipping preparation instructions:

• Place all the vent caps on the back of the Micro GC (see

Figure 2 on page 17).

• Always include the power supply.

• Include, if used, the inlet filter(s).

Cleaning

To clean the surface of the Micro GC:

1

Switch the Micro GC off.

2

3

Remove the power cable.

Put protection plugs on the sample and carrier gas inlets.

4

5

6

Put protection plugs on the column vents.

Use a soft brush (not hard or abrasive) to carefully brush away all dust and dirt.

Use a soft, clean cloth dampened with mild detergent to clean the outside of the instrument.

•

Never clean the inside of the instrument.

•

Never use alcohol or thinners to clean the instrument; these chemicals can damage the case.

•

Be careful not to get water on the electronic components.

•

Do not use compressed air to clean the instrument.

Instrument Disposal

When the Micro GC or its parts have reached the end of their useful life, dispose of them in accordance with the environmental regulations that are applicable in your country.


1

Introduction



User Manual

2

Instrument Overview

Front View 16

Back View 17

Inside View 18

Carrier Gas Connection 21

Sample Gas 23

Power 26

Ambient Pressure 27

Ambient Temperature 27

Maximum Operation Altitude 27

There are several versions of the Agilent 490 Micro GC. All of them use GC channels, each of which consists of an Electronic

Gas Control (EGC) injector, column, and detector.

The Micro GC is a self-contained package with all of the normal

GC components. It is available as a dual channel cabinet version

(one or two GC channels) or a quad channel cabinet version (up to four GC channels). A computer with a chromatography data system (CDS) is needed to complete the system.

This chapter provides a brief overview of the 490 Micro GC.

Agilent Technologies

15

2


Front View

Figure 1

Front view of the 490 Micro GC

16

Ready LED

LED OFF: System not ready

LED ON: System is ready

Run LED

LED OFF: No run



LED blinking: Run in progress

Error LED

LED OFF: No error



LED blinking: Error present

See “Error List” on page 79

Power LED

LED OFF: No power



LED ON: Power OK



LED blinking: Voltage < 10 Volt

Sample 1 and Sample 2

Sample gas inlet connector (for unheated front inlets)

See “Sample Gas” on page 23

Power On/Off Switch

Switch the Micro GC ON or OFF


Back View

Vents

It is possible to connect long vent lines to these fittings in order to safely guide hazardous fumes to a fume hood or other appropriate vent.

Carrier gas input

Carrier gas input connector

See “Carrier Gas Connection” on page 21

Power connector

Power connector (male)

See “Power” on page 26

Figure 2

Back view of the 490 Micro GC (shown with shipping caps in place)


2


2


Inside View

Assign IP address button

Hold down this button during power up to assign an IP address.

See

“Ethernet Networks” on page 64.

Open the right side cover and the cable connectors will be visible. See Figure 3

and Figure 4 .

COM 2

RS-232 (2-wire) communication interface.

See

“490 Chromatography

Data Systems” on page 63.

COM 3


See Table 1 on page 20.

LAN indicators

Red LED: Transmit data



Green LED: Receive data

Ethernet (LAN) connector

Ethernet RJ45 connector.

See “Ethernet Networks” on page 64.

COM 1

RS-232 communication interface

Analog I/O

External analog I/O signals.

See

“External Analog

I/O” on page 75.

Digital I/O

Digital input and output signals, such as start_stop, ready_out, and start_in.

See “External Digital

I/O” on page 74.

Figure 3

Cable connectors (original main board CP740010 shown)


Assign IP address switch

See

“Ethernet Networks” on page 64.

COM 2


See “490 Chromatography

Data Systems” on page 63.

COM 3 and COM 4


See Table 1 on page 20.

Analog I/O

External analog I/O signals.

See “External Analog

I/O” on page 75.


2

LAN indicators

Red LED: Transmit data



Green LED: Receive data

Ethernet (LAN) connector

Ethernet RJ45 connector.

See “Ethernet Networks” on page 64.

COM 1

RS-232 communication interface

Digital I/O

Digital input and output signals, such as start_stop, ready_out, and start_in.

See “External Digital

I/O” on page 74.

Figure 4

Cable connectors (main board G3581-65000 shown)


2


The Micro GC provides communications ports as shown in

Table 1 , depending on the model.

Table 1

Micro GC communication ports

Port

LAN

COM 1

COM 2

COM 3

COM 4

Analog I/O

Digital I/O

Connection 490 Micro GC

(with CP740010)

Ethernet

RS232

RS232

RS485

RS232

RS422

RS485

RS232

RS422

Interface with PC

Not available

Valco stream selector

Not available

Not available

Not available

Not available

Not available

Not available

490 Micro GC

(with G3581-65000)

Interface with PC

Not available

Valco stream selector

Not available

Not available

Not available

Not available

Not available

Not available

490-PRO Micro GC

Interface with PC

Valco stream selector;



Serial MODBUS

*

Valco stream selector;



Serial MODBUS

*

;



LCD display

†

Serial MODBUS

*

Not available

Not available

Serial MODBUS

*

Not available

Not available

Analog I/O

Digital I/O;

 ready in - ready out;

 start in - start out;

 extension boards

‡

Analog I/O

Digital I/O;




**

Analog I/O

Digital I/O;




**

Not available Not available Not available USB

* Optional PRO license required

† LCD display not included

‡ Extension boards not included

**Extension boards not included



2

Carrier Gas Connection

C A U T I O N

The carrier gas line is connected to the Micro GC at the back panel Carrier 1 or Carrier 2 port.

Do not use any kind of plastic tubing since air will diffuse through the tubing, which may cause noisy baselines and decreased sensitivity. The metal tubing must be clean for GC use. Buy either flamed or chromatographically clean tubing.

Specifications for the carrier gas:

Pressure:

Purity:

550 kPa ± 10% (80 psi ± 10%)

99.995% minimum

Dry and free of particles: Gas Clean filters recommended

Gas Clean filters are recommended to remove any traces of moisture and oxygen. For low-level analysis, consider using a better grade of carrier gas.

Gas Clean filters are filled with nitrogen. If you are not using nitrogen as the carrier gas, flush filters and gas lines after installation of a new filter.

The type of analysis you want to perform dictates the type of carrier gas to use. The difference between the relative thermal conductivity of the carrier gas and the sample components should be as high as possible. See

Table 2 for several relative

thermal conductivities.

Table 2

Relative thermal conductivities

Carrier gas

Hydrogen

Helium

Relative thermal conductivities

Methane

Oxygen

Nitrogen 6.6

Carbon monoxide 6.4

47.1

37.6

8.9

6.8

Carrier gas

Ethane

Propane

Relative thermal conductivities

5.8

4.8

Argon 4.6

Carbon dioxide 4.4

Butane 4.3


2


WA R N I N G

Your Micro GC is configured for a specific carrier gas, either



He and H

2

or N

2

and Ar. Make certain that any carrier gas selection in your Agilent data system corresponds to the carrier gas physically connected to your Micro GC. Use only the carrier gas corresponding to this configuration. If you change the carrier gas type plumbed to the Micro GC, you must change the corresponding carrier gas type in the data system.

WA R N I N G

Hydrogen is flammable. If you are using hydrogen as a carrier gas, pay particular attention to possible leaks at connections inside and outside of the Micro GC (use an electronic leak tester).



2

Sample Gas

C A U T I O N

The Micro GC is built for the analysis of gases and vapors only.

You are advised to prepare a noncondensing gaseous standard sample for routine checkup of the instrument. Sample pressure should be between 0 and 100 kPa (0 to 15 psi), the temperature between 0 and 110 °C ± 5 °C of the analyzer ambient temperature, and it must be filtered, preferably through a 5-mm filter. Agilent always recommends the use of the external filter kit (CP736729).

For more details, see “Using the external filter unit” on page 23.

Liquids will seriously damage the instrument and should be avoided!

Handling a sample

If possible, filter and dry the sample before introducing it to the

Micro GC. Agilent advises using an external sample filter unit between the injector and the sampling device.

Using the external filter unit

The male part of the filter must be hand-tightened into the female part, followed by a 1/8 turn with a 7/16-inch wrench. See

Figure 5

as shown below and

Figure 6 on page 24. Orient the

arrow on the female half of the filter towards the fingertight fitting.

Replace the external filter unit at regular intervals. See

“Review the Packing List” on page 32 for part numbers.


2


To “Sample In”



Micro GC

Finger tight fitting



(CP23050)

1/16-inch nut

Filter female



(CP736736)

Filter male



(CP736737)

Filter element 5 microns



(CP736467, 5 pieces)

1/16-inch nut

From



sample line

Figure 5

Unheated injector connection

To ”Sample In”



Micro GC

1/16 inch nut and



front and back ferrule

1/16-inch nut

Filter female



(CP736736)

Filter male



(CP736737)

From



sample line

Filter element 5 microns



(CP736467, 5 pieces)

1/16-inch nut

Figure 6

Heated injector connection

Whenever possible, remove moisture from samples introduced to the Micro GC.

Heated sample lines

A heated sample line is always combined with a heated injector.

A heated injector and sample line is an option for a channel unit, and is used to prevent sample from condensing in the sample lines when analyzing condensable samples.

The heated sample and injector can be controlled between 30 °C and 110 °C.



2

Connecting to a heated sample line

WA R N I N G

Before connecting a heated sample line, allow the sample line heater to cool down to ambient temperature. The metal surfaces of the sample line heater are very hot and could burn your skin.

1

2

Open the side panel to expose the heater.

Remove the insulation ( Figure 7 on page 25). The sample line connector will be visible ( Figure 8 on page 25).

Figure 7

Removing the insulation

C A U T I O N

Figure 8

Sample line connector

3

Connect the sample line

Insulate the sample line coming into the Micro GC to prevent damage to any communications cables.


2


Power

Power source

• 90 to 264 Vac, frequency between 47 to 63 Hz.

• The room power outlet circuit must be exclusively reserved for the instrument(s).

• The network should be properly grounded.

• Installation Category (overvoltage category): II

Power Requirements

The Micro GC requires 12 V Vdc, 150 W.

The Gasifier requires 12 V Vdc, 150 W.

C A U T I O N

Only use the power supply provided with your Micro GC.

This Power Supply, see Figure 9 , is tailored to meet the power needs of your Micro GC. See

Table 3 on page 27 for

specifications.

26

Disposal

Figure 9

Model FRA180-S120-4 (P/N CP742999)

Disposal of the Power Supply must be carried out in accordance with all environmental regulations applicable in your country.



2

Specifications

Table 3

Power supply specifications

Input voltage

Input frequency

Inrush current

Output voltage

90 Vac to 264 Vac

47-63 Hz

50 A/100 V, 100 A/240 V

12.0 Vdc

Voltage adjust

Output power

± 5 %

150 W

Over voltage protection 110 %-150 % rated output voltage

Ripple and noise ± 0.5 % (1 % p-p max)

Operating temperature 0 °C to +50 °C

Storage temperature -20 °C to +85 °C

Humidity

Safety standard

20 % to 90 % non condensing

UL60950-1, TUV EN60950-1, BSMI CNS14336

Approved

RFI/EMC standard

Dimensions

In compliance with CISPR22 (EN55022) Class B and

FCC class B, CNS13438 class B, EN61000-3-2,

EN61000-3-3, EN61000-4-2, EN61000-4-3,

EN61000-4-4, EN61000-4-5, EN61000-4-6,

EN61000-4-8, EN61000-4-11 (light industry level, criteria A)

170 × 85 × 44 mm (L×W×H)

Ambient Pressure

The Micro GC automatically shuts down if the ambient pressure is greater than 120 kPa.

Ambient Temperature

The Micro GC automatically shuts down if the ambient temperature exceeds 65 °C.

Maximum Operation Altitude

The maximum operation altitude is 2000 meters.


2




User Manual

3

Installation and Use

Pre-Installation Requirements 30

Inspect the Shipping Packages 30

Unpack the Micro GC 31

Review the Packing List 32

Install the 490 Micro GC 33

Create the Test Method 41

Perform a Series of Runs 42

Shut Down Procedure 43

Long Storage Recovery Procedure 43

This chapter describes how to install and use the instrument.

For an initial installation, an example of a typical packing list is also included. The actual packing list and included parts depend on the options ordered.


29

3


Pre-Installation Requirements

Prepare the installation site as described in the Site Preparation

Guide (G3581-90002), including the recommended Gas Clean filters.

Inspect the Shipping Packages

The Micro GC will arrive in one large box and one or more smaller cartons. Inspect the cartons carefully for damage or signs of rough handling. Report damage to the carrier and to your local Agilent office.



3

Unpack the Micro GC

WA R N I N G

Unpack the Micro GC and accessories carefully and transfer them to the work area using proper handling techniques.

Inspect the instrument and accessories carefully for damage or signs of rough handling. Report damage to the carrier and to your local Agilent office.

Avoid back strain or injury by following all safety precautions when lifting heavy objects.

C A U T I O N

The instrument has been protected during shipment by protective caps.

See Figure 10 . Before use, remove these caps, including those on the back

panel.

Protective shipping caps


Figure 10 Protective shipping caps

31

3


Review the Packing List

Table 4

shows a typical packing list. The actual packing list and included parts depend on the options ordered.

Table 4

Typical Micro GC packing list

Item

Installation Kit Micro GC

CD-ROM - Micro GC - User Information

Ethernet crossover cable 2.8m

Locking nut

Male luer

Fittings 1/8 inch Brass 20/pk

Tee, 1/8 inch Brass Union 2/PK

1/8 in x .96in Copper Tubing, 50 Ft, coil

External Sample Filter kit

Front and Back ferrule 1/16

1/16inch Ferrule set SST

Stainless Nut 1/16 in

Manual User Ext. Sample Filter

Capil. Ext. Filter

Tubing,SS,pre-tsd,1/16in.



ODx1.0mmID,1/p

0100-0053

CP505260

CP736879

CP4008

Tubing, SS,1/16in. ODx1.0mmID,1 mL,1/p CP4009

Fingertight Fitting PEEK CP23050

5 FILTERS for EXT. FILTER Assembly

External Filter Male

CP736467

CP736737

External Filter FeMale

Micro GC power supply, 12V, 150W

CP736736

CP742999

Part number Quantity Units of measure

CP740388 1

G3581-90010 1

EA

EA

CP740292

CP420200

CP420100

5080-8750

1

4

4

1

EA

EA

EA

EA

5180-4160

5180-4196

CP736729

CP471201

0100-1490

3

1

1

80

1

3

3

1

1.5

0.080

1

1

1

1

1

PK

M

EA

EA

EA

EA

EA

EA

MM

M

EA

EA

EA

EA

EA



3

Install the 490 Micro GC

If you are installing the 490 Micro GC for the first time, follow the steps as described below.

If you are performing a re-installation, see

“Long Storage

Recovery Procedure” on page 43.

Step 1: Install gas regulators and set pressures

Carrier gas cylinders should have a two-stage pressure regulator to adjust the carrier gas pressure to 550 kPa ± 10% (80 psi ± 10%). Set cylinder regulator pressure to match the gas inlet pressure.

Step 2: Connect carrier gas

The Micro GC supports the use of helium, nitrogen, argon and hydrogen. The recommended purity for carrier gas is 99.995% minimum. Connect the carrier gas to the Micro GC Carrier 1 fitting (and

Carrier 2 fitting, if available) and turn on the gas flow. See

“Carrier Gas Connection” on page 21.

Step 3: Connect to the checkout sample

Install the external filter unit as described in

“Using the external filter unit” on page 23.

For an unheated GC channel: Connect the sample to the Micro

GC using the sample-in connector situated at the front of the instrument (see

“Front View” on page 16).

For a heated GC channel: Connect the sample to the heated sample as described in

“Connecting to a heated sample line” on page 25.

Step 4: Connect to power

Connect the power connector to the Micro GC, and then plug the power cord into an appropriate power source. See

“Power” on page 26. Be sure the power supply is placed in such

a way that the mains appliance inlet or adapter is easy to reach for the operator, as it functions as a power disconnect switch.


3


Step 5: Connect to the data system computer (or LAN)

The Micro GC must be connected to a external workstation for setting up the method and acquiring data. The Agilent data system requires an Ethernet (LAN) connection.

• Connect the Micro GC to the data system computer.

•

For Micro GC’s with main board CP740010 installed a crossover cable (CP740292) is required as described in

“Peer-to-peer” on page 66.

•

For Micro GC’s with main board G3581-6500 installed either a crossover cable (CP740292) can be used or a regular (non-crossed) patch cable can be used as

described in “Peer-to-peer” on page 66

.

• If the Agilent data system is not installed, install it now.

Step 6a: Assign an IP address - for a Micro GC with main board CP740010

The procedure for assigning an IP address depends on which main board your Micro GC has installed. Below is the procedure to follow if your Micro GC has main board CP740010.

• For Micro GCs with main board G3581-6500, follow the procedures described in

“Step 6b: Assign an IP address - for a

Micro GC with main board G3581-65000” on page 37.

1

2

Make sure the Micro GC is switched off.

Be sure the Micro GC is connected directly to a PC using a crossover cable.

3

Start up the Micro GC Service tool. The Micro-GC

Communication Setup screen opens.



3

Figure 11 Micro GC Communication Setup screen

4

In the Micro-GC Communication Setup screen, click

Setup IP

Address to open the Setup Ethernet Connection window.


Figure 12 Network webpage

35

3


5

6

Type the IP address, hostname, subnet mask and gateway you want to assign to the Micro GC in the corresponding fields.

•

The Domain is not required for correct operation of the

Micro GC. Consult the network administrator if required.

•

The Hostname should only contain numeric or alphanumeric characters, minus sign (“-“) or underscore

(“_”) and should not be longer than 19 characters.

Start up the Micro GC with the IP button pressed until the

Power LED and Ready LED starts blinking (see

Figure 13

).

IP button

36

Figure 13 IP button

7

In the Setup Ethernet Connection window, click

Assign IP

address.

After receiving the IP address, the Micro GC will continue its startup sequence by blinking all LEDs in sequence. The

Service Tool responds with a Confirmation message that the

IP address was assigned (see

Figure 14

).



3

Figure 14 IP address assigned confirmation message

8

After the LED blinking sequence has stopped, the Power

LED will remain lit. When only the power LED is on, the

Micro GC ready for use.

Step 6b: Assign an IP address - for a Micro GC with main board

G3581-65000

The procedure for assigning an IP address depends on which main board your Micro GC has installed. This procedure is for

Micro GC’s with main board G3581-6500.

• For Micro GC’s with main board CP740010, follow the procedures described in

“Step 6a: Assign an IP address - for a

Micro GC with main board CP740010” on page 34.

Upon arrival from the factory, the Micro GC has a default static

IP address configured. The active IP address is specified on the sticker together with the MAC address and the main board serial number (see

Table 5 ).

Table 5

Factory default IP address settings

Default IP address

Subnet mask

Host name

Default Gateway

192.168.100.100

255.255.255.0

microgc

N/A (not used)


3


1

To complete this procedure, the Micro GC must be in static

IP address Mode. To verify this, be sure the DHCP switch, is in the left position. The DHCP switch is located on the back of the main board. (See Figure 15 ).

DHCP Switch

Figure 15 DHCP Switch

3

4

5

6

2

Change the IP address of your laptop or PC to an address in the same range as the current IP address as the Micro GC.

Start up your web browser.

Connect to the Micro GC’s website. Type the IP address of the Micro GC in the address field of the web browser.

On the web page, click

Network.

Log in as administrator. Use the factory default login and password:

•

Login name: admin

•

Password: agilent



3

Figure 16 Web server authentication

7

In the network webpage, the upper section shows the current IP configuration. Type the IP Address, Subnet mask, and

Gateway you want to assign to the Micro GC in the corresponding fields.


Figure 17 Micro GC website

39

3


8

9

Click Save to save the applied IP configuration.

This IP address is now the active IP address.

Communication with the Micro GC will be lost, since the active IP address has changed.

10

To reestablish communication, type the new saved IP address in the web browser address bar, and click

Activate

Communication.

Step 7: Note the Micro GC startup cycle

The

Ready LED should light (after two minutes) when ready. (See

“Front View” on page 16.)

Your Micro GC is shipped from the factory with default settings.

The following is relevant information on the factory default states and settings:

• When the Micro GC is turned on, the power LED lights up and the system begins the flush cycle procedure. The flush cycle is a 2-minute cycle in which the various valves are activated and deactivated in order to flush entrapped air from the manifold, valves, and tubing.

• After the flush cycle is finished, the method (the default method in this case), which was last active before the instrument was shutdown, is activated.

• All heated zones are set at 30 °C.

• The detector filaments are set to OFF.

Step 8: Complete Micro GC configuration in the data system

1

2

3

If not already configured, complete any additional configuration for the Micro GC in the data system.

Especially make sure the carrier gas types match the gas actually supplied to the Micro GC.

Start the Micro GC’s online instrument session.

Refer to the data system online Help and User Manuals for more details if necessary.



3

Create the Test Method

C A U T I O N

At first startup, perform a checkout to make sure the Micro GC is functioning properly.

A test method for each standard column type has been provided

in the sections listed in Table 6

.

If you ordered a Molsieve column, make sure it is conditioned before use.

See

Table 8 on page 49 for parameters.

Table 6

Test method listings

Column type

Molsieve 5 Å

CP Sil 5 CB

CP Sil CB

PoraPlot 10 m

Hayesep A 40 cm

CO x

1 m and AL

2

O

3

/KCI

MES(NGA) and CP-WAX 52 CB

Table

Table 8 on page 49

Table 9 on page 50

Table 10 on page 51

Table 11 on page 52

Table 12 on page 53

Table 13 on page 54

Table 14 on page 55

Use the data system to set up the checkout parameters for each

GC channel. Apply the checkout method settings to the Micro

GC and allow the instrument to stabilize at the initial operating conditions. Monitor the instrument status using the data system’s status display (refer to the data system help for details).

Each test method has been designed to determine if the instrument channel is functioning properly and includes an example test chromatogram.


3


Perform a Series of Runs

2

3

1

Create a short sequence of at least three runs using the test sample and method.

Run the sequence.

After the first run, the results for each channel should become similar to the example chromatograms.



3

Shut Down Procedure

C A U T I O N

The detector can be damaged by improper shut down. If shutting down the instrument for more than a few days, carry out the procedure below.

2

3

1

4

Create a method for all channels with these settings:

•

Filaments switched OFF.

•

Column temperature set at 30 °C.

•

Injector temperature set at 30 °C.

•

Pressure set at 50 kPa.

Apply the method to the Micro GC.

Wait until the temperature of the columns and injectors are

< 40 °C (to protect the column), then switch off the Micro

GC.

Remove the carrier gas tubing and plug all the vents and carrier gas connections with 1/8-inch brass nuts or plastic caps.

Before using the instrument again, perform the “Long Storage

Recovery Procedure” described below.

Long Storage Recovery Procedure

Follow this recovery procedure if your Micro GC has been stored for a long period of time.

1

Remove the 1/8-inch brass nuts and plastic caps from all of the vents and carrier gas connections.

2

3

4

Connect the carrier gas tubing and apply pressure to the

Micro GC. Refer to the Site Preparation Guide for supply pressures and other gas requirements.

Wait at least 10 minutes before switching ON the Micro GC.

Immediately check if the detector filaments are switched

OFF. Switch OFF if necessary.


3


5

6

Set the column(s) temperature(s) to the maximum allowed temperature (160 °C or 180 °C depending on the column limit).

Condition the GC column, preferably overnight. This will ensure that all the water has been removed from the column module and no damage will occur to the TCD filaments.



User Manual

4

GC Channels

Carrier Gas 46

Micro Electronic Gas Control (EGC) 47

Injector 47

Column 48

Backflush Option 57

TCD Detector 60

The instrument contains up to 2 channels in a dual channel cabinet, or up to 4 channels for a quad channel cabinet. A GC channel contains a gas regulator, an injector, a column, and a

TCD detector. See Figure 18 on page 46.

This chapter provides a brief discussion on the major components in the Micro GC and the backflush option.


45

4

GC Channels

Carrier Gas

C A U T I O N

The Micro GC is configured for use with either He and H

2 or



N

2

and Ar.

Agilent recommends you use gases with a minimum purity of

99.995%. Since the injection valve is operated pneumatically, there is a limit of 550 kPa ± 10% (80 psi ± 10%) to the main gas supply.

Your Micro GC is configured either for carrier gas He and H

2 or N

2

and Ar.

Use the carrier gas type for which your instrument is configured, otherwise the detector filaments can be damaged.

Gas Clean unit

(optional)

Microelectronic gas control

(EGC)

Injector

Columns

(analytical and reference)

µTCD

Reference vent

Column vent

Sample Out

Carrier gas

Figure 18 Gas flow diagram

Sample in


GC Channels

4

Micro Electronic Gas Control (EGC)

The Micro GCs have built-in regulators that can be adjusted to get a constant or programmed pressure control, which, once constant or programmed pressure control is obtained, results in a constant or programmed flow through the injector, column and detector. The pressure range is from 50 to 350 kPa (7 to

49 psi). This pressure sets a continuous flow of carrier gas of about 0.2 to 4.0 mL/min (depending on column length and type).

A typical pressure rise is 200 kPa/min, which will give a significant pressure increase during the run without excessive baseline disturbance. In most cases baseline subtraction may improve the quality of chromatograms that suffer from baseline drift.

Injector

The injector has a built-in 10-µL sample loop that is filled with the gaseous sample. The pressure of the sample should be between 0 and 100 kPa (0 to 15 psi) and the sample temperature within 5 to 110 °C ± 5 °C of the analyzer.

When the chromatographic data system sends a START command, the vacuum pump draws the gas sample through the loop and the injector injects the gas sample from the sample loop into the gas stream. A typical injection time is 40 milliseconds (ms). This equals an average injection volume of

200 nL. Injection time will be rounded to a multiple of 5 ms. A practical minimum value is 40 ms. A value of 0 to 20 milliseconds might result in no injection.


4

GC Channels

Column

A variety of column configurations are possible on the Micro

GC. The columns you require for your specific analyses have been installed at the factory. Other configurations are, of course, possible, but altering the GC channels is a delicate matter that can only be handled by an Agilent service engineer.

Table 7

shows several standard columns as supplied in the

Micro GCs and selected applications. Other columns are available by contacting Agilent Technologies.

Table 7

Agilent Micro GC columns and applications

Column/Phase type

Molsieve 5Å

Hayesep A

CP-Sil 5 CB

CP-Sil 19 CB

CP-WAX 52 CB

PLOT Al

2

O

3

/KCl

PoraPLOT U

PoraPLOT Q

CP-CO

X

CP-Sil 19CB for THT

CP-Sil 13CB for TBM

MES NGA

Target components

Permanent gases (N

2

/O

2

separation), methane, CO, NO, and so forth. 20 m required for O

2

-Ar baseline separation). Natural gas and biogas analysis. Optional Retention

Time Stability (RTS) configuration.

Hydrocarbons C

1

–C

3

, N

2

, CO

2

, air, volatile solvents, natural gas analysis.

Hydrocarbons C

3

–C

10

, aromatics, organic solvents, natural gas analysis.

Hydrocarbons C

4

–C

10

, high boiling solvents, BTX.

Polar volatile solvents, BTX.

Light hydrocarbons C

1

–C

5

saturated and unsaturated. Refinery gas analysis.

Hydrocarbons C

1

–C

6

, halocarbons/freons, anesthetics, H

2

S, CO solvents. Separation of ethane, ethylene, and acetylene.

2

, SO

2

, volatile

Hydrocarbons C

1

–C

6

, halocarbons/freons, anesthetics, H

2

S, CO

2

, SO

2

, volatile solvents. Separation of propylene and propane, coelution of ethylene and acetylene.

and O

2

), CH

4

.

THT and C

3

–C

6

+

in Natural Gas Matrix.

TBM and C

3

–C

6

+

in Natural Gas Matrix.

Unique column specially tested for MES in natural gas (1 ppm)..

C A U T I O N

All columns except the HayeSep A (160 °C) and MES (110 °C) columns can be used up to 180 °C, the maximum temperature of the column oven.

Exceeding this temperature will cause the column to lose efficiency instantly and the column module will need replacement. All channels have a built-in protection that prevents a setpoint above the maximum temperature.


GC Channels

4

Molsieve 5Å columns

The Molsieve 5Å column is designed to separate: hydrogen, carbon monoxide, methane, nitrogen, oxygen, and some noble gases. Higher molecular weight components have much higher retention times on this column.

Table 8

Molsieve 5Å instrument parameters

Parameter

Column temperature

Injector temperature

Column pressure

Sample time

Injection time

Run time

Detector sensitivity

Peak 1

Peak 2

Peak 3

Peak 4

Peak 5

4m Heated

110°C

110°C

100 kPa (15 psi)

30 s

40 ms

25 s

Auto

Hydrogen 1.0%

Argon/Oxygen 0.4%

Nitrogen 0.2%

_________

_________

10m Unheated

40°C

NA

150 kPa (21 psi)

30 s

40 ms

140 s

Auto

Neon 18 ppm

Hydrogen 1.0%

Argon 0.2%

Oxygen 0.2%

Nitrogen 0.2%

20m Unheated

40 °C

NA

200 kPa (28 psi)

30 s

40 ms

210 s

Auto

Neon 18 ppm

Hydrogen 1.0%

Argon 0.2%

Oxygen 0.2%

Nitrogen 0.2%

6

4

2

0 mV

14

Molsieve 5Å 4 m heated

2

12

10

8

3

1

0 5 10 15 20 25

Seconds mV

4.5

4

3.5

Molsieve 5Å 10 m unheated

3

4

mV

450

400

350

3

2.5

2

1.5

5

1

0.5

12

0

0 20 40 60 80 100 120 140 160 seconds

300

250

200

150

100

50

0

0

Molsieve 5Å 20 m unheated

1

50

2

3

4

100 150

5

200 250

Seconds


4

GC Channels

CP-Sil 5 CB columns

The natural gas components, mostly hydrocarbons, separate in the same order on the non-polar and medium-polar CP-Sil CB columns. Nitrogen, methane, carbon dioxide, and ethane are not separated on these columns. They produce a composite peak.

For separation of these components, consider a HayeSep A column.

Table 9

CP-Sil 5 CB instrument parameters

Parameters

Column temperature


Column pressure

Sample time

Injection time

Run time


Peak 1

Peak 2

Peak 3

Peak 4

Peak 5

4m Heated

50 °C

110 °C

150 kPa (21 psi)

30 s

40 ms

30 s

Auto

Composite Balance

Ethane 8.1%

Propane 1.0% i-Butane 0.14% n-Butane 0.2%

6m Unheated

50 °C

NA

150 kPa (21 psi)

30 s

40 ms

30 s

Auto

Composite Balance

Ethane 8.1%


25

15

5

-5

0 mV

55

CP Sil 5 CB 4 m heated

1 2

45

3

35

5

4 5

10 15 20 25 30 35

Seconds

24

19

14

9 mV

34

CP Sil 5 CB 6 m unheated

1 2 3

29

4

5

4

-1

0 10 20 30 40 50 60 70

Se conds


GC Channels

4

CP-Sil CB columns

Table 10

CP-Sil CB instrument parameters

Parameter

Column temperature


Column pressure

Sample time

Injection time

Run time


Peak 1

Peak 2

Peak 3

CP-Sil 13 CB 12m Heated (TBM) CP-Sil 19 CB 6m Heated (THT)

40°C 85 °C

50°C

250 kPa (38 psi)

85 °C

200 kPa (25 psi)

30 s

255 ms

80 s

Auto

30 s

255 ms

35 s

Auto

Methane balance

TBM 6.5 ppm

________

Helium balance

THT 4.6 ppm

Noane 4.5 ppm mV

0.6

0.4

0.2

0

-0.2

-0.4

-0.6

-0.8

0

CP Sil 13 CB

12 m heated (TBM)

10 20

1

30 40 50

2

60 70 80 90

Se conds

-0.5

-1

-1.5

mV

0.5

CP Sil 19 CB

6 m unheated (THT)

1

0

-2

0 10 20 30

2

3

40 50 60

Seconds


4

GC Channels

PoraPlot 10m column

Table 11

PoraPlot 10m instrument parameters

Parameter

Column temperature


Column pressure

Sample time

Injection time

Run time


Peak 1

Peak 2

Peak 3

Peak 4

Peak 5

4

5

2

3

Auto

1

PoraPlot u 10m Heated PoraPlot Q 10m Heated

150°C

110°C

150 °C

110 °C

150 kPa (21 psi)

30 s

40 ms

100s

150 kPa (21 psi)

30 s

40 ms

50 s

Auto

Composite Balance

Ethane 8.1%

Propane 1.0% i-Butane 0.14% n-Butane 0.2% mV PoraPlot U 10 m heated

30

25

20

15

50

45

40

35

10

5

0

2 6

1 2

3

4

5

10 14 18 22 26 30 34 38 42 46 50

Seconds mV

680

580

480

380

280

180

80

-20

0

PoraPlot Q 10 m heated

10 20

1 2

30

3

40

4

5

50 60

Seconds


GC Channels

4

Hayesep A 40 cm heated column

WA R N I N G

The HayeSep A column separates oxygen, methane, carbon dioxide, ethane, acetylene, ethylene, and selected sulfur gases.

Nitrogen coelutes with oxygen. Components with a higher molecular weight than propane have long retention times on this column.

Maximum allowable column temperature is 160 °C.

Table 12

Hayesep instrument parameters

Parameter

Column temperature


Column pressure

Sample time

Injection time

Run time


Peak 1

Peak 2

Peak 3

Hayesep A 40 cm Heated

50 °C

110 °C

150 kPa (21 psi)

30 s

40 ms

60 s

Auto

Nitrogen 0.77%

Methane Balance

Ethane 8.1%

245

195

145

95 mV

345

Hayesep A 40 cm heated

2

295

45

-5

0

1

10 20 30

3

40 50 60 70

Seconds


4

GC Channels

CO

X

and AL

2

0

3

/KCI columns

Table 13

CO

X

and AL

2

0

3

/KCI instrument parameters

Parameter

Column temperature


Column pressure

Sample time

Injection time

Run time


Peak 1

Peak 2

Peak 3

Peak 4

Peak 5

CO

X

1m Unheated

80 °C

NA

200 kPa (28 psi)

30 s

40 ms

204 s

Auto

Hydrogen 1.0%

Nitrogen 1.0%

CO 1.0%

Methane 1.0%

CO

2

1.0%

Helium Balance

AL

2

0

3

/KCI 10m Heated

100

°C

110

°C

150 kPa (21 psi)

30 s

40 ms

60 s

Auto

Composite Balance

Ethane 8.1%


2.5

2

1.5

1 mV

3.5

3

CO

X

2

1 m unheated

3

4

0.5

0

1

-0.5

0 50 100

5

150 mV

115

Al

2

O

3

/KCl 10 m heated

1 2

95

75

3

55

35

200

15

250

Seconds

-5

0 10 20

4 5

30 40 50 60 70

Seconds


GC Channels

4

MES (NGA) and CP-WAX 52 CB columns

Table 14

MES (NGA) and CP-WAX 52 CB instrument parameters

Parameter

Column temperature


Column pressure

Sample time

Injection time

Run time


Peak 1

Peak 2

Peak 3

Peak 4

MES 10m Heated (NGA) CP-WAX 52 CB 4m Heated

90 °C

110 °C

60 °C

110 °C

70 kPa (10 psi)

30 s

500 ms

120 s

150 kPa (21 psi)

30 s

40 ms

35 s

Auto

Nitrogen Balance

Noane 11.2 ppm

MES 14. 2 ppm

________

Auto

Nitrogen 0.75%

Acetone 750 ppm

Methanol 0.15%

Ethanol 0.30%

Helium Balance mV

4000

3500

3000

2500

2000

1500

1000

500

0

-500

0

MES 10 m heated (NGA)

20 40 60

1

0.9

0.5

2

3

0.1

- 0.3

80 90 100 110 120 130 mV CP-WAX 52 CB 4 m heated

1

13

8

2

3

4

3

80 100 120 140

Seconds

-2

1 6 11 16 21 26 31 36

Seconds


4

GC Channels

Column conditioning

Follow this procedure to make sure that any water that might be present inside the analytical column is removed before the TCD is switched on.

Also follow this procedure if the Micro GC module has been stored for a long period.

C A U T I O N

The detector filaments may be damaged by improper conditioning. Follow this procedure to avoid damaging the detector filaments.

Column conditioning procedure

1

2

3

4

Switch off the TCD filaments in the method.

Set the column temperature of the module to the maximum temperature (160 °C or 180 °C depending on the column limit). Leave the filaments off.

Download this method to the Micro GC.

Run the downloaded method to condition the column, preferably overnight.

This will assure you that all the water has been removed from the column and no damage will occur to the TCD filaments.

Nitrogen and oxygen merging in Molsieve columns

On a properly activated column, nitrogen and oxygen will be well separated. However, in time you will find that these two peaks begin to merge together. This is caused by water and carbon dioxide present in the sample or carrier gas, adsorbing to the stationary phase.

To restore the column efficiency, condition the column, Z described above, for about an hour. After reconditioning, you can test the column performance by injecting plain air. If you have a proper separation between nitrogen and oxygen again, the column separation power has been restored. If the Micro GC frequency of use is very high, you might consider routinely leaving the oven temperature at 180 °C overnight. The longer the reconditioning period, the better the column performance.


GC Channels

4

Backflush Option

Backflush to vent is an advanced technique used to prevent later-eluting compounds from reaching the analytical column and detector. The main reason for applying this technique is to keep the analytical column clean and reduce analysis time.

The Micro GC is optionally available with GC modules that incorporate backflush capabilities.

1 2 3 4 5

6

8

Natural gas analysis, straight

Figure 19 Natural gas analysis

7

50 s

1 = Methane

2 = Ethane

3 = Propane

4 = iso-Butane

5 = Butane

6 = iso-Pentane

7 = Pentane

1 2

3

4

5

8 50 s

Natural gas analysis, with backflush at 8 seconds

A backflush system always consists of a pre-column and an analytical column. The two columns are coupled at a pressure

point, which makes it possible to invert the carrier gas flow direction through the pre-column at a preset time, called the

backflush time. See Figure 21 on page 58.

The injector, two columns, and detector are in series.

The sample is injected onto the pre-column where a pre-separation takes place; injection takes place in normal mode. See Figure 20 on page 58.


4

GC Channels

Restriction

System pressure

Pressure regulator

Pre-column

Analytical column

Pressure point

Detector

Injector Backflush vent

Figure 20 Backflush system normal flows

When all compounds to be quantified are transferred to the analytical column, the backflush valve switches (at the backflush time). On the pre-column, the flow inverts and all compounds left on the pre-column now backflush to the vent. On the analytical column the separation continues because there the flow is not inverted. See Figure 21 .

Restriction

System pressure

Pressure regulator

Pre-column

Analytical column

Pressure point

Detector

Figure 21 Backflush flows

Injector

Backflush vent

58

The standby mode is the backflush configuration (if the instrument is equipped with the optional backflush valve).

Backflushing saves the time required to elute high boiling components that are not of interest and ensures that the pre-column will be in good condition for the next run.


GC Channels

4

Tuning

Use trial and error to tune the backflush time. Reduce the backflush time to transfer fewer compounds to the analytical column.

1

2

3

Obtain a chromatogram in normal mode. Check out the retention times of the compounds you have to quantify.

Set the backflush time at the retention time of the last peak of interest.

Obtain a second chromatogram.

4

Adjust the backflush time (increments of 0.1 seconds are possible) until all components of interest are transferred to the analytical column and all unwanted peaks are backflushed.

Because a small pre-column is used, it is not always possible to cut between two adjacent peaks.

The

Backflush Time range is from 0.5 seconds until the maximum run time.

To disable backflush

To disable backflushing, set the

Backflush Time to 0. This puts the system in normal mode during the entire run.


4

GC Channels

TCD Detector

Each GC channel is equipped with a thermal conductivity detector (TCD). This detector responds to the difference in thermal conductivity between a reference cell (carrier gas only) and a measurement cell (carrier gas containing sample components). The construction of a TCD is such that the changing thermal conductivity of the carrier gas stream, due to components present, is compared to the thermal conductivity of a constant reference gas stream.



User Manual

5

Communications

Access the Connection Ports 62

490 Chromatography Data Systems 63

Ethernet Networks 64

External Digital I/O 74

External Analog I/O 75

Micro GC Cycle with Constant Pressure 76

Micro GC Cycle with Ramped Pressure 77

This chapter describes the input and output ports accessible inside the Micro GC for interfacing with external devices. Also included is an overview of the constant pressure cycle and the ramped (programmed) pressure cycle of the Micro GC.


61

5

Communications

Access the Connection Ports

1

Open the cover ( Figure 22 ).

Figure 22 Instrument cover

2

At the front of the instrument, the external device

connectors are visible ( Figure 23 ).

62

Figure 23 External device connectors (Main board CP740010 shown)

3

Close the cover after connecting the cables.


Communications

5

490 Chromatography Data Systems

The 490 Micro GC requires an Agilent chromatography data system (CDS) for control, peak identification, integration, data analysis, reporting, and so forth. See

Table 15

. The CDS requires a LAN (Ethernet) connection. Multiple Micro GCs can be controlled using an Agilent data system such as EZChrom,

OpenLAB EZChrom Edition, or OpenLAB Chemstation Edition.

The maximum number of Micro GCs controlled is limited by your software license. For detailed information on setting method parameters, see the help files in the data system.

Table 15

Chromatography data system control for the Micro GC

Communication

IP Setting via

COM 1

COM 2

COM 3

COM 4

Analog I/O

Digital I/O

External start in: Yes

External ready in: Yes

External start out: Yes

External ready out: Yes

EZChrom Elite



(version 3.3.2)

Ethernet

BootP

OpenLAB CDS EZChrom

Edition

Ethernet

BootP

OpenLAB CDS Chemstation

Edition

Ethernet

BootP

Not available Not available Not available

For Valco stream selector valve

(maximum 2)


(maximum 3)


(maximum 3)

Not available

Not available

Capturing (UserDataStore)

Not available

Not available

Status only

Yes

Yes

Yes

Yes

Not available

Not available

Status only

Yes

Yes

Yes

Yes

Relay Control

Timed Relay:

Alarm Relay:

Solenoids:

USB

Yes

Yes

Yes

Not available

Yes

Yes

Yes

Not available

Yes

Yes

Yes

Not available

See

“External Digital I/O” on page 74.


5

Communications

N O T E

Ethernet Networks

COM 2

Pin

1

2

3

RXD

TXD

received data transmitted data

4

5

GND

ground

6

7

RTS

request to send

8

CTS

5 V/500 mA output

9

RS -232

Figure 24 Communication ports

COM 1 (standard RS232) and COM 2 (special RS232) not pin compatible.

64

About the internet

protocol

:

• Developed to allow cooperating computers to share resources across a network.

• TCP and IP are the two best-known protocols in the Internet

Protocol Suite.

• Other protocols/services are FTP, Remote Login (Telnet),

Mail, and SMTP.

The Agilent data systems require an Ethernet network for data communications with the Micro GC. This network can be a local area network (LAN) or wide area network (WAN).

General requirements:

• Micro GC with main board CP740010 installed (10 Mbps connection)

•

Cat5 or Cat3 UTP/STP cabling.

•

The network should comply with Standard Ethernet

(IEEE 802.3).


Communications

5

•

The network must use 10BASE-T, 10/100BASE-TX or

10/100/100BASE-TX compatible hubs or switches.

• Micro GC with main board G3581-65000 installed (100 Mbps connection)

•

Cat 6, Cat5e, or Cat 5 UTP/STP cabling.

•

The network should comply with Standard Ethernet

(IEEE 802.3).

•

The network must be 100BASE-T, 10/100BASE-TX, or

10/100/100BASE compatible hubs or switches.

• TCP/IP should be used on the network.

The Micro GC ships with an Ethernet crossover cable (RJ-45 connector, 2.8 meter) for direct connection between the

Micro GC and a PC with a chromatography data system (CDS).

IP Addresses

• An IP address uniquely identifies a computer or device on the network or internet.

• IP addresses are made up of four 8-bit numbers, and each of these numbers is separated by a decimal point.

• Each of the 8-bit numbers can represent a decimal value of

0-255.

• Each part of an IP address can only be in that range (for example, 198.12.253.98).

A network can be public (addressable from the internet) or

private (not addressable from the internet). A private network can also be isolated, that is, physically not connected to the internet or other networks. In many cases, you can set up an isolated LAN for instruments. For example, an isolated, private

LAN may consist of a workstation computer, four Micro GCs, a printer, a LAN switch, and cabling. Isolated LANs must use IP addresses in the “private” ranges shown in

Table 16

.

Table 16

Private (isolated) LAN IP address ranges

Starting IP

0.0.0.0

10.0.0.0

172.16.0.0

192.168.0.0

Ending IP Subnet mask

255.255.255.255

N/A

10.255.255.255

172.31.255.255

255.0.0.0

255.255.0.0

192.168.255.255

255.255.0.0

Type

Public

Private

Private

Private


5

Communications

Example network configurations

Peer-to-peer

A peer-to-peer network (

See Figure 25 )

is required to assign or change the IP address of a Micro GC. It can also be used when no network is required or available. The cable(s) used for peer-to-peer connections depend on the installed main board.

•

For a Micro GC with main board CP740010 installed, a crossover cable

(CP740292)

is required.

•

For a Micro GC with main board G3581-6500 installed,

either a crossover cable (CP740292) or a regular

(non-crossed) patch cable can be used.

66

Crossover cable

Data system PC

Any IP address allowed

Micro GC with main board CP740010

Single 490 connected to a local workstation. IP address in the same subnet range as the computer subnet range.

Crossover cable or regular patch cable

Data system PC


Micro GC with main board G3581-6500

Single 490 connected to a local workstation. IP address in the same subnet range as the computer subnet range.

Figure 25 Peer-to-peer (single instrument)


Communications

5

Peer-to-peer communication requires IP addresses in the same subnet range for the computer and the Micro GC.

After assigning or changing the IP address of a Micro GC, you can remove the connection cable and connect the computer and

Micro GC to a local network using normal cabling.

See

“Inside View” on page 18.

Local Area Network (LAN)

An example of a LAN configuration is shown in Figure 26 .

Switch

Patch cable

Data system PC


Multiple 490 Micro GCs connected to a local workstation. IP address in the same subnet range as the workstation subnet range.

Figure 26 Local network (multiple instruments)

OpenLAB CDS maximum connections are limited by the computer speed, license, and network performance.


5

Communications

Global network (WAN)

An example of a Global network is shown in

Figure 27 .

Subnet 1

Patch cable

Data system PC

IP address in subnet range of Subnet 1

Can also control Micro GC in Subnet 2.

Internet

Router

Subnet 2

Switch

Multiple 490 Micro GCs connected t company network. IP address in the same subnet range as Subnet 1.

Switch

Data system PC

IP address in subnet range of Subnet 2.

Can also control Micro GC in Subnet 1.

Figure 27 Global network with multiple instruments

68

IP address in the same subnet range as Subnet 2


Communications

5

To restore the factory default IP address

Upon arrival from the factory, the Micro GC with main board

G3581-65000 has a default static IP address configured. (see

Table 5

). Sometimes it is necessary to restore this IP address if communication with the Micro GC is lost.

The 490 Micro GC with main board G3581-6500 has a reset button that can be accessed at the back of the instrument. See

Figure 28 . To perform a soft reset of the instrument, press the button briefly (less than 3 seconds). Holding the button down for a longer period of time while the instrument is powering up will restore the IP address of the Micro GC to its factory installed default settings. To restore the factory default IP address to the Micro GC:

1

2

Make sure the Micro GC is powered OFF.

Press and hold the reset button.

3

4

While holding down the reset button, power on the Micro

GC.

Shortly (approximately 3 seconds) after powering on the

GC, release the reset button.

5

Please note that releasing the reset button too quickly (less than 1 second) may result in not reverting the network configuration to factory defaults. Also note that holding down the reset button for too long (more than 10 seconds), can cause the Micro GC to reboot.

The default IP address is restored.


5

Communications

70

Figure 28 Reset button

To change the Micro GC network settings

1

2

3

4

5

Start up your web browser.

Connect to the Micro GC’s website. Type the IP address of the Micro GC in the address field of the web browser.

On the web page, click Names.

Log in as administrator. Use the factory default login and password:

•

Login name:

admin

•

Password:

Agilent

Click the items you would like to change.


Communications

5


Figure 29 Configuring network settings in static IP address mode

8

9

6

7

If you are changing the host or domain name, type the host name or domain name in the required field

.

•

The

host name should only contain numeric or alphanumeric characters, minus sign (“-“) or underscore

(“_”) and should not be longer than 19 characters.

•

The

domain name is not required for correct operation of the Micro GC.

If one or more DNS servers and/or search domain are required, type in the DNS IP addresses (space separated) and search domain. These settings are not required for correct operation of the Micro GC.

Click

Save to save settings.

Power cycle the Micro GC.

71

5

Communications

Frequently Asked Questions (FAQ)

Q: Can I connect the Micro GC to my site network?

A: Yes, if the network is standard Ethernet and uses TCP/IP with UTP cabling.

Q: I'm using a DHCP server; can I use this to assign an IP address to the Micro GC?

A: If you have a Micro GC with main board G3581-65000 installed, yes. If you have a Micro GC with main board

CP740010 installed, yes and no. The Micro GC and Agilent data systems work with static IP addresses only, so an IP address will have to be reserved on the DHCP server and marked as static.

Q: How do I assign an IP address to the Micro GC?

A: See

“Step 6a: Assign an IP address - for a Micro GC with main board CP740010” on page 34 or

“Step 6b: Assign an IP address - for a Micro GC with main board G3581-65000” on page 37.

Q: Are the network settings saved if the Micro GC is restarted, or after loss of power?

A: Yes, the network settings of the Micro GC are stored in flash memory, and will not be erased at loss of power.

Q: Can I control my Micro GC from anywhere in the world via the Internet?

A: Yes, if your network is designed for this, and has internet access or remote access facilities (the ports 4900, 4901 and 4902 must be open).

Glossary of network terms

Crossover cable

A cable used to connect two, and only two,

Ethernet devices directly without the use of a hub or switch.

Domain

One of several settings within the TCP/IP configuration that identifies paths used to communicate with

Ethernet devices. The Domain is an IP address.

Ethernet address (MAC address)

This is a unique identifier that every Ethernet communication device has assigned to it.



Communications

5

Typically, the Ethernet address cannot be changed and is the permanent way of identifying a particular hardware device. The

Ethernet address consists of 6 pairs of hexadecimal digits.

Gateway

This is one of several settings within the TCP/IP configuration that identifies paths used to connect with

Ethernet devices on a different subnet. The Gateway is assigned an IP Address.

Host name

The host name is an alternate way of identifying a device that is friendlier to people. Frequently the host name and the IP address may be used interchangeable.

IP address

This is a unique number for each Ethernet device within the set of connected devices. Two PCs may have identical

IP addresses so long as they are not interconnected to each other through the Internet. The IP Address consists of a series of four sets of decimal numbers (between 1 and 255) that provide routing information used by the TCP/IP protocol to establish a reliable connection. Without the IP Address, communications would be bogged down trying to establish connections to Ethernet addresses at unknown locations.

Patch cable

A cable that is used to connect Ethernet devices to hubs, switches, or your company network.

Protocol

A set of rules that govern how computers send and receive information.

RJ45 connector

A telephone jack style connector used for a

Universal Twisted Pair (UTP) hardware connection for

10/100Base-T Ethernet connections. RJ45-style connectors are used by the Micro GC.

TCP/IP

An international standard protocol used by the

Internet. We use this protocol for communication to the Micro

GC. You may find several network protocols, such as IPX/SPX and NetBEUI, installed on your computer.

73

5

Communications

External Digital I/O

Connections between Micro GCs and external devices are made with the appropriate cable to the External Digital I/O port.

Ready/Not Ready signal

490 Micro GC

*

Pin

1

2

3

6

7

8

4

5

9

10

11

12

13

*

*

*

14

15

16

17

18

23

24

25

19

20

21

22

OUT

OUT

OUT

Not used

Not used

Digital IN 1 (not de

Ànied )

Digital IN 2 (not de

Ànied )

Digital OUT 1 (not de

Ànied )

Digital OUT 2 (not de Ànied )

Start -IN

Micro -GC will only start in external ready mode when

External Ready -IN

Start -IN detects a contact closure pulse

External system reset

Relay 1

Relay 2

Start

500 ms contact closure when injection will take place

OUT

Ready / not ready

Reserved

+5 VDC out (electronic fused max 500 mA )

GND

External Digital I/O

*

Relay contacts maximum 24 Volt 1 Ampere

Figure 30 External digital connections


Communications

5

External Analog I/O

490 Micro GC

GND

Pin

1

2

3

9

10

11

12

13

14

15

6

7

8

4

5

Analog GND

Figure 31 External analog connections

The external analog I/O port can handle six (6) analog inputs

(input 0 to 10 Volt).

The user interface receives this analog information and translates it into actions to be taken by the local user interface, events, or data to be shown or stored in the remote user interface. In OpenLAB EZChrom and OpenLAB ChemStation only status is visible.

EXT -Analog IN 1

EXT -Analog IN 2

EXT -Analog IN 3

EXT -Analog IN 4

EXT -Analog IN 5

EXT -Analog IN 6


-15 VDC out (electronic fused max 100 mA )



External analog I/O


5

Communications

Micro GC Cycle with Constant Pressure

After the run sampling is begun. This means that the sample is (mostly) sucked into the sample loop.

The timing diagram below provides an overview of the constant pressure cycle of the Micro GC.

This description is only for one channel. In most cases a dual-channel system is used. When a dual-channel system is used, the sequence is the same, but the timing settings can differ. If the sample time on channel A and channel B are different, the longest time is used for both channels. Also the run time can be specified per channel; the data acquisition stops per channel as soon as the run time has elapsed. The total analysis time depends on the longest run time.

Pressurization delay

(120 mS), used to pressurize the sample to the same pressure as the column head pressure.

During injection time the sample is transported to the column by the carrier gas.

Initial pressure

76

Run ﬁnished

Time

Download method

Sample time

Pressurization time

Equilibration time

Run started Inject

Inject time

Start data acquuisition

Run time

Before a run is started all used method parameters must be downloaded via the data system.

The run can be started when the Micro GC is ready (Ready LED is lit).

The data system will wait until data is received from the Micro GC.

Fixed equilibration delay of 40 ms.

This time allows the sample to settle in the sample loop.

The real analysis

(run) and data acquisition starts.

After the specified run time has elapsed, the run is finished.


Communications

5

Micro GC Cycle with Ramped Pressure

The timing diagram below provides an overview of the ramped

(programmed) pressure cycle of the Micro GC. The timing before the injection is identical to the constant pressure cycle.

The pressure rise is started, the duration is depending on two (2) parameters:

• Pressure rise

• Final pressure

The remaining final time depends on the total run time, the duration of the initial time and the pressure rise. This means that it is possible that the final time is zero. Another situation is that the final pressure is limited because of these settings. The software will check all parameter values and change them into realistic values.

Note: During the run time, there can be only one pressure ramp to a higher pressure.

Not ready

Final pressure

Pressure release

Pressure rise

Initial pressure

Ready

Ready

Download method

Sample time

Run started

Pressurization time

Equilibration time

Inject time

Inject Start data acquuisition

During initial time the column head pressure remains the same.

Rise time Final time

Time

Initial time

Run time

Relieve time

Stabilization time

Run ﬁnished

As soon as the final pressure is reached, the rise stops and the final time begins. The pressure remains the same.

Relieve time, the time needed to decrease the column head pressure from the final pressure to the initial pressure.

Stabilization time for the pressure after it has been returned to the initial pressure.

Fixed at 500 mS.


5

Communications



User Manual

6

Errors

Error Handling 78

Error List 79


77

6

Errors

Error Handling

During operation a series of events and error messages are generated indicating start or finishing of certain actions and procedures as well as smaller and fatal errors somewhere in the instrument. This section describes how the Micro GC reacts to these events or messages.

The following error classes as well as the subsequent actions are available:

Class 0 Internal event.

These are events indicating a certain procedure has started or finished. In no way do they influence the proper functioning of the instrument.

Class 1 Advisory fault; the instrument continues.

These are the less critical advisory errors not requiring immediate action by the user. The ongoing run may be minimally effected by it and thus need not be stopped. Class 1 error messages indicate certain malfunctions of the instrument. Some errors of this type keep the instrument from becoming ready.

Class 2 Critical errors for logging; error LED ON.

These are critical errors for which the user needs immediate warning (a popup or warning may appear in the data system and the Error

LED lights). The run in progress is stopped since its results will definitely be wrong. Corrective action by the user or instrument service may be required.

Class 3 Fatal errors for logging; instrument shutdown, error LED and buzzer ON.

These are fatal errors for which the user needs immediate warning. The Error LED lights. An instrument shutdown occurs. Corrective action by the user or service is required.

All errors, regardless of class, are available to the data system under instrument status (for troubleshooting). All Class 1 and higher errors are also logged in the instrument’s flash memory.

Individual numbers identify all errors; these numbers are built using the error class and a number. Events are not numbered.


Errors

6

Error List

6

7

Table 17

Error list

1

2

3

4

5

Error number

0

0

0

0

0

Error class

Event/error code

Init passed (event)

Pressure restored

Start flush cycle

Flush cycle passed

TCD calibrating

1

1

Too low pressure

Pressure fault

The General Error State as stored in UserDataStore (only valid for EZChrom 3.3.2) address 1219 is composed of the following items.

The error must be handled as CLNNN in which:



C = error class (severity)



L = location



NNN = error number or event number.

The Error class can be one of the following values:

•

0=diagnostic error.

•

1=advisory error.

•

2=critical error.

•

3=fatal error.

There are five locations:

•

0=main board.

•

1=channel 1.

•

2=channel 2.

•

3=channel 3.

•

4=channel 4.

Table 17 lists the possible errors.

Description

End of initialization phase

Pressure restored after Too Low Pressure

Is a part of the initialization cycle

Is a part of the initialization cycle

Automatic generation after method activation or download.

Pressure drops below 35 kPa

Pressure state not ready after 5 minutes

Action needed

TCD off and temp. control to default

Check gas supply

Check gas supply or replace manifold


6

Errors

Table 17

Error list (continued)

12

13

14

15

16

17

18

19

20

25

26

27

28

29

21

22

23

24

Error number

8

9

10

11

2

2

1

1

Error class

30

31

2

2

1

3

3

3

0

0

2

2

3

3

0

1

2

2

2

2

0

0


Low battery 1

Low battery 2

Description Action needed

Battery 1 low power (portable Micro GC only) Recharge battery

Battery 2 low power (portable Micro GC only) Recharge battery

Sample line sensor fault Sample line temperature sensor error Heater turned off

Sample line temperature fault Temperature not reached within 35 min (heater error)

Replace sample line heater

Injector temperature fault

Column temperature fault

Temperature not reached within 35 min (heater error)

Replace module

Temperature not reached within 35 min (heater error)

Replace module

TCD Temperature limit activated

EDS logging error

Low power supply

Injector sensor fault

Hardware protection activated

Unable to update EDS log

Voltage < 10 Volt

Injector temperature sensor error

Column temperature sensor error

Call service

Recharge battery

Replace module

Replace module Column temperature sensor fault

TCD control error

TCD calibration failed

TCD voltage not or incorrectly set

Any error during TCD calibration

Call service

Replace module

 or TCD controller board

Hardware reset

Pressure too high

Initialization error

Instrument reset request from WS

Pressure > 450 kPa for at least 2 minutes

During initialize

Internal communication error During/after initialization, between MPU and

IOC/IOE

Instrument EDS incorrect Instrument Electronic Data sheet incorrect

EDS incorrect

Internal power failure

Flush cycle aborted

GC module changed

Electronic Data sheet incorrect

During/after initialization, internal supplies

Flush cycle stopped before completion

Changing a channel (controller or module) and restarting the instrument

Replace manifold

Call service

Call service

Call service

Call service

Call service

TCD Gain calibrated

TCD Offset calibrated

End TCD Gain calibration

End of Offset calibration


Errors

6

Table 17


Error number

32

33

34

0

0

0

Error class

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0


Null String

ADC reading out of range

EDS Analytical Module incorrect

EDS Config checksum incorrect

EDS Logbook checksum incorrect

EDS Protected checksum incorrect

Description

Not used

Analog Digital Control out of range

Electronic Data Sheet Analytical Module incorrect

Electronic Data Sheet Configuration checksum incorrect

Electronic Data Sheet Logbook checksum incorrect

Electronic Data Sheet Protected checksum incorrect.

EDS C.C. Config checksum incorrect

EDS C.C. Logbook checksum incorrect

Electronic Data Sheet Channel Control checksum incorrect.

Electronic Data Sheet Channel Control Logbook checksum incorrect

EDS C.C. Protected checksum incorrect

Electronic Data Sheet Channel Control

Protected checksum incorrect

EDS A.M. Config. checksum incorrect

Electronic Data Sheet Analytical Module

Configuration checksum incorrect

EDS A.M. Logbook checksum incorrect


Logbook checksum incorrect

EDS A.M. Protected checksum incorrect


Protected checksum incorrect

Action needed

EDS Config SVER incorrect Electronic Data Sheet Configuration Structure

Version incorrect

EDS Protected SVER incorrect Electronic Data Sheet Protected Structure

Version incorrect

EDS C.C. Config SVER incorrect

EDS C.C. Protected SVER incorrect


Structure Version incorrect


Protected Structure Version incorrect

EDS A.M. Config SVER incorrect

EDS A.M. Protected SVER incorrect

Pressure Offset calibration complete


Configuration incorrect


Protected Structure Version incorrect

Notification Pressure Offset calibration is completed


6

Errors

Table 17


52

53

54

54

55

56

57

76

77

78

Error number

51

Error class

0

79

990

991

992

993

994

995

996

3

3

3

0

2

1

1

1

1

1

3

3

3

3

3

3

3

3

Event/error code Description

Pressure Offset calibration

Failed

Calibration offset out of range

Unable to store pressure offset Pressure off set is out of valid range

Action needed

Temperature sensor not connect to instrument Call Service Temperature sensor disconnected

Not ready to start run Check method Issued by Safety Control Object in Hardware domain. Bridge Call to GC domain (Reporting

Not Ready To Start Run Error)

Stream selection failed

Ambient pressure or temperature alarm

Column cleaning

Equilibrating temperature zones

IOC Communication error

Read main board EDS error

Stream selector (VICI) failed switching

Issued by Safety Control Object in Hardware domain whenever ambient temperature has passed a certain value.

Instrument in column cleaning state

Instrument stabilizing after column cleaning

MPU is not able to communicate with IOC

Not able to read Main board EDS

Unable to read EDS controller

Check valve

NA

Wait until Ready

Call service

Call service

Call service Read channel controller EDS error

Read channel analytical module EDS error

Watchdog Error: Store

Application report on flash error

Watchdog Error: Store

ErrorLog report on flash error

Not able to read analytical module EDS

Internal Software Error, can’t store application report on flash memory.

Internal Software Error, can’t store ErrorLog report on flash memory.

Internal Software Error, software hanging

Call service

Auto reboot

Auto reboot

Auto reboot Watchdog Error: Instrument frozen (hazardous error)

Watchdog Error: OOA Timer error

Watchdog Error: ACE reactor stopped

Watchdog Error: Event pump stopped for 20 s

Watchdog Error: IOC Fatal error 0

Internal Software Error, OOA Timer could not be created.

Internal Software Error, ACE reactor stopped.

Internal Software Error, Event pump stopped.

Internal Software Error, IOC fatal error 0

Auto reboot

Auto reboot

Auto reboot

Auto reboot


Errors

6

Table 17


Error number

997

Error class

3

998

999

3

3





Description




Action needed

Auto reboot

Auto reboot

Auto reboot


6

Errors


INGENIERIA ANALITICA S.L.

Tel: (+34) 902.45.6677

Fax: (+34) 902.46.6677

www.ingenieria-analitica.com [email protected]

© Agilent Technologies, Inc.

Printed in USA, February 2014

G3581-90001

No results