Agilent Technologies 6890 Series Operating instructions

Site Preparation and Installation Manual
Agilent 6890 Series Gas
Chromatograph

Agilent Technologies, Inc
2850 Centerville Road
Wilmington, DE 19808-1610
Agilent Technologies 2000
All Rights Reserved
Reproduction, adaptation, or
translation without permission
is prohibited, except as allowed
under the copyright laws
Part No G1530-90307
First edition, Jan 2000
Printed in USA
Replaces Part No G1530-90305
Site Preparation and
Installation Manual
HP® is a registered trademark
of Hewlett-Packard Co
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Safety information
The 6890 Gas Chromatograph
meets the following IEC
(International Electrotechnical
Commission) classifications:
Safety Class 1, Transient
Overvoltage Category II, and
Pollution Degree 2
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 Whenever the
safety protection of the 6890
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 Disconnect the
AC power cord before removing
covers The customer should
not attempt to replace the
battery or fuses in this
instrument The battery
contained in this instrument is
recyclable
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
A warning calls attention to a
condition or possible situation
that could cause injury to the
user
CAUTION
A caution calls attention to a
condition or possible situation
that could damage or destroy
the product or the user's work
See accompanying
instructions for more
information
Indicates a hot
surface
Indicates hazardous
voltages
Indicates earth
(ground) terminal
Indicates radio-active
hazard
Indicates explosion
hazard
Electromagnetic
compatibility
This device complies with the
requirements of CISPR 11
Operation is subject to the
following two conditions:
1 This device may not cause
harmful interference
2 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 user’s authority to
operate the equipment
Soun Emission
Certification for Fe eral
Republic of Germany
Sound pressure Lp < 65 dB(A)
During normal operation
At the operator position
According to ISO 7779 (Type
Test)
When operating the 6890 with
cryo valve option, the sound
pressure 74 6 dB(A) during cryo
valve operation for short burst
pulses
Schallemission
Schalldruckpegel LP < 65 dB(A)
Am Arbeitsplatz
Normaler Betrieb
Nach DIN 45635 T 19
(Typprüfung)
Bei Betrieb des 6890 mit Cryo
Ventil Option treten beim
Oeffnen des Ventils
impulsfoermig Schalldrucke Lp
bis ca 74 6 dB(A) auf

Contents
i
Chapter 1. Site Preparation
Temperature and humidity ranges 3
Ventilation requirements 3
Venting oven exhaust 4
Venting toxic or noxious gases 4
Benchtop space requirements 4
Electrical requirements 8
Grounding 8
Line voltage 8
USA fast heating oven 10
Canadian installation 11
Configuring the GC for an MSD 11
Gas requirements 11
Gases for packed columns 11
Gases for capillary columns 12
Gas purity 13
The gas plumbing 14
Supply tubing for carrier and detector gases 16
Two-stage pressure regulators 16
Pressure regulator-gas supply tubing connections 17
Traps 17
Cryogenic cooling requirements 18
Choosing a coolant 19
Using carbon dioxide 19
Using liquid nitrogen 21
Supplying valve actuator air 22

ii
Contents
Chapter 2. Installation
Step 1 Unpacking the GC 28
Step 2 Placing the GC system on the benchtop 29
Step 3 Turning the power on 30
Step 4 Connecting tubing to the gas supply tank 31
Step 5 Attaching traps to the gas supply tubing 32
Step 6 Attaching a SWAGELOK™ Tee to tubing 33
Step 7 Attaching tubing to the inlet manifold 34
Step 8 Attaching tubing to detector manifolds 35
6890 with Electronic Pressure Control 35
6890 with Manual Pressure Control 36
Step 9 Checking for leaks 38
Step 10 Attaching cryogenic liquid supplies 39
Attaching liquid carbon dioxide 39
Attaching liquid nitrogen 40
Step 11 Attaching valve actuator air 42
Step 12 Setting source pressures 44
Step 13 Connecting cables 45
Cable diagrams 52
Analog cable, general use 52
Remote start/stop cable 53
Binary-coded decimal cable 54
External event cable 55
Step 14 Setting the 7673 Automatic Liquid Sampler switches 56
Step 15 Configuring the GC 57
Configuring for the Agilent GPIB ChemStation 57
Configuring for the INET integrator 58
Using the GC with a LAN 58
Appendix Making SWAGELOK Connections....................................................... 59
Index............................................................................................................................ 63

1
Site Preparation
How to prepare your laboratory for
installation and use of the GC
Temperature and humidity ranges 3
Ventilation requirements 3
Venting oven exhaust 4
Venting toxic or noxious gases 4
Benchtop space requirements 4
Electrical requirements 8
Grounding 8
Line voltage 8
USA fast heating oven 10
Canadian installation 10
Configuring the GC for an MSD 11
Gas requirements 11
Gases for packed columns 11
Gases for capillary columns 12
Gas purity 13
The gas plumbing 14
Supply tubing for carrier and detector gases 16
Two-stage pressure regulators 16
Pressure regulator-gas supply tubing connections 17
Traps 17
Cryogenic cooling requirements 18
Choosing a coolant 19
Using carbon dioxide 19
Using liquid nitrogen 21
Supplying valve actuator air 22

2
Site preparation at a glance
Site Preparation Checklist
❐The site is well ventilated and free of corrosive materials and overhanging obstacles.
❐Site temperature is within the recommended range of 20 to 27°C.
❐Site humidity is within the recommended range of 50 to 60 .
❐Bench space is adequate for the GC with EPC: 50 cm x 58.5 cm x 50 cm (21 inch x 23 inch x 21 inch).
Bench space is adequate for the GC without EPC: 50 cm x 68 cm x 50 cm (21 inch x 26.7 inch x 21 inch).
❐Bench can support the weight of the 6890 system. See page 7.
❐Power receptacle is earth grounded. See page 8.
❐Electrical supply meets all GC’s power requirements. See page 8.
❐Voltage supply is adequate for oven type. Regular oven: 2,250 VA. Fast-heating oven: 2,950 VA.
❐Gas supplies meet the requirements of your columns and detectors. See page 11.
❐Gases meet purity requirements. All should be chromatographic-grade—99.9995 pure or better. Air should be zero-
grade or better. Detector air is not shared with valve actuators.
❐Precleaned, 1/8-inch (or 1/4-inch) copper tubing is available for connecting inlet and detector gas supplies. See page 16.
❐Inlet and detector gas supplies have two-stage pressure regulators installed.
Optional supplies:
❐High quality traps for inlet and detector gas supplies—molecular sieve trap, hydrocarbon trap, and/or oxygen trap.
❐Liquid N2 or liquid CO2 (depending on requirements) available for cryogenic cooling.
❐Supply of 1/4-inch, insulated copper tubing is available for liquid N2 supplies, OR
1/8-inch, heavy-walled, stainless steel tubing is available for liquid CO2 supplies.
❐Insulation for liquid N2 tubing is available.
❐Pressurized clean air is available for value actuators. See page 22.
Before the GC arrives, make sure your
laboratory meets the following
environmental, weight, power, and gas
requirements You should also refer to this
checklist for supplies that you need to
operate your GC, such as traps and tubing
You can find more site preparation
information in this chapter

3
Site Preparation
Site preparation involves two general steps: insuring that your laboratory is
capable of supporting the operation of the GC and obtaining supplies and tools
you will need to install the instrument A list of the necessary tools and supplies
appears at the beginning of the “Installation” chapter Most supplies are available
from Agilent Technologies See the Agilent catalog for consumables and supplies
for descriptions and ordering information You can obtain a copy of the catalog
from your local sales office
Temperature an humi ity ranges
Operating the GC within the recommended ranges insures optimum instrument
performance and lifetime
After exposing the GC to extremes of temperature or humidity, allow 15 minutes
for it to return to the recommended ranges
Ventilation requirements
The GC is cooled by convection: air enters vents in the side panels and
underneath the instrument Warmed air exits through slots in the top, rear, and
side panels Do not obstruct air flow around the instrument
Caution For proper cooling and general safety, always operate the instrument with cover
panels properly installed
Recommended temperature range Temperature range
20 to 27°C5 to 40°C
Recommended humidity range Humidity range
50 to 60 Up to 31°C, 5 to 80
At 40°C, 5 to 50
Recommended altitude range
Up to 2000 m

Site Preparation
Benchtop space requirements
4
Venting oven exhaust
Hot air (up to 450°C) from the oven exits through a vent in the rear Allow at
least 20 cm (10 inch) clearance behind the instrument to dissipate this air
WAR I G Do not place temperature-sensitive items (for example, gas cylinders, chemicals,
regulators, and plastic tubing) in the path of the heated exhaust These items will
be damaged and plastic tubing will melt Be careful when working behind the
instrument during cool-down cycles to avoid burns from the hot exhaust
If space is limited, the Oven Exhaust Deflector (part no 19247-60510) may
improve oven cooling It diverts exhaust air up and away from the instrument
You can connect it to a 10 2-cm (4-inch) exhaust-duct system, route the exhaust
to a fume hood, or vent the exhaust outside the building with 10 2-cm diameter
(4-inch diameter) furnace duct
Venting toxic or noxious gases
During normal operation of the GC with many detectors and inlets, some of the
carrier gas and sample vents outside the instrument If any sample components
are toxic or noxious, or if hydrogen is used as the carrier gas, the exhaust 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
To further prevent contamination from noxious gases, you can attach a chemical
trap (part no G1544-60610) to the split vent
Benchtop space requirements
The GC with electronic pneumatics control (EPC) is 59 cm (23 inch) wide The
nonEPC model is 68 cm (26 7 inch) wide Both are 50 cm (21 inch) high and
50 cm (21 inch) deep
The area above the GC should be clear, with no shelves or overhanging
obstructions that limit access to the top of the instrument and interfere with
cooling You may need additional space for other instruments used with your
GC Figure 1 shows some common system configurations

5
Site Preparation
Benchtop space requirements
Table 1 presents the dimensions, power requirements, heat production, and
weight of the GC and other Agilent instruments often used with it Use this table
to insure that you have adequate space and power for the entire system Allow
at least 10 2 cm (4 inch) space between instruments for ventilation See Table 2
and Table 3 for GC voltage requirements

Site Preparation
Benchtop space requirements
6
Figure 1. Common GC system configurations—top views
59* cm
50 cm
50 cm
47 cm
54 cm 44 cm
40 cm
28 cm
23 cm
65 cm
17 cm
GC
59* cm
50 cm
10 cm
31 cm
GC with Agilent Automatic Liquid Sampler
GC with Agilent ChemStation
GC with 5972A Mass Selective Detector
*68 cm for non-EPC version.
Tray—30.3 cm
left of GC
ALS Controller
Injector—44 cm
above GC
Computer
Keyboard
GC
Mouse
pad
Printer
GC
7673
59* cm