Agilent GC, GC/MS, and ALS Site Preparation Guide

Agilent GC, GC/MS, and ALS Site Preparation Guide
Agilent GC, GC/MS, and
ALS
Site Preparation Guide
Agilent Technologies
Notices
© Agilent Technologies, Inc. 2009
Warranty
No part of this manual may be reproduced
in any form or by any means (including
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agreement and written consent from Agilent Technologies, Inc. as governed by
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laws.
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
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liable for errors or for incidental or
consequential damages in connection
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terms covering the material in this
document that conflict with these
terms, the warranty terms in the separate agreement shall control.
Manual Part Number
G3430-90038
Edition
First edition, April 2009
Printed in USA or China
Agilent Technologies, Inc.
2850 Centerville Road
Wilmington, DE 19808 USA
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Acknowledgments
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Safety Notices
CAUTION
A CAUTION notice denotes a hazard. It calls attention to an operating procedure, practice, or the like
that, if not correctly performed or
adhered to, could result in damage
to the product or loss of important
data. Do not proceed beyond a
CAUTION notice until the indicated
conditions are fully understood and
met.
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.
Contents
1
7890A GC Site Preparation
Customer Responsibilities
Dimensions and weight
8
9
Power Consumption 12
USA fast heating oven, 240 V
Canadian installation 14
Heat Dissipation
15
Exhaust Venting
16
Environmental conditions
Gas Selection
Gas Supply
14
17
18
21
Gas Plumbing 25
Supply tubing for carrier and detector gases 26
Two-stage pressure regulators 27
Pressure regulator-gas supply tubing connections
Traps 28
Cryogenic Cooling Requirements
Using carbon dioxide 29
Using liquid nitrogen 30
Maximum Length of Cables
Site LAN Network
Basic Tools
2
27
29
32
33
34
6890 Series GC Site Preparation
Customer Responsibilities
Dimensions and weight
Power Consumption
Heat Dissipation
43
Exhaust Venting
44
39
41
Environmental conditions
Gas Selection
Gas Supply
Gas Plumbing
GC, GC/MS, and ALS Site Preparation Guide
38
45
46
49
52
3
Supply tubing for carrier and detector gases 53
Two-stage pressure regulators 54
Pressure regulator-gas supply tubing connections
Traps 55
Cryogenic Cooling Requirements
Using carbon dioxide 56
Using liquid nitrogen 57
Maximum Length of Cables
Site LAN Network
Basic Tools
3
54
56
59
60
61
6850 Series GC Site Preparation
Customer Responsibilities
Dimensions and weight
66
67
Power Consumption 69
Canadian installation 70
Heat Dissipation
72
Exhaust Venting
73
Environmental conditions
Gas Selection
Gas Supply
74
75
78
Gas Plumbing 81
Supply tubing for carrier and detector gases 82
Two-stage pressure regulators 83
Pressure regulator-gas supply tubing connections
Traps 84
Cryogenic Cooling Requirements
Using carbon dioxide 85
Maximum Length of Cables
Site LAN Network
Basic Tools
4
85
87
88
89
7693A Automatic Liquid Sampler Site Preparation
Customer Responsibilities
Dimensions and Weight
Power Consumption
4
83
94
94
95
GC, GC/MS, and ALS Site Preparation Guide
Environmental Conditions
Chiller Supplies
Basic Tools
GC, GC/MS, and ALS Site Preparation Guide
95
96
97
5
6
GC, GC/MS, and ALS Site Preparation Guide
GC, GC/MS, and ALS
Site Preparation Guide
7890A GC Site Preparation
Customer Responsibilities 8
Dimensions and weight 9
Power Consumption 12
Heat Dissipation 15
Exhaust Venting 16
Environmental conditions 17
Gas Selection 18
Gas Supply 21
Gas Plumbing 25
Cryogenic Cooling Requirements 29
Maximum Length of Cables 32
Site LAN Network 33
Basic Tools 34
This section outlines the space and resource requirements
for GC, GC/MS, and automatic liquid sampler (ALS)
installation. For a successful and timely installation of the
instrument, the site must meet these requirements before
beginning installation. Necessary supplies (gases, tubing,
operating supplies, consumables, and other usage- dependent
items such as columns, vials, syringes, and solvents) must
also be available. Note that performance verification requires
the use of helium carrier gas, and for 5975 MSD systems
using chemical ionization, methane reagent gas. Refer to the
Agilent Web site at www.agilent.com/chem for the most
up- to- date listing of GC, GC/MS, and ALS supplies and
consumables.
Agilent Technologies
7
1
7890A GC Site Preparation
Customer Responsibilities
The specifications in this manual outline the necessary
space, electrical outlets, gases, tubing, operating supplies,
consumables, and other usage- dependent items such as
columns, vials, syringes, and solvents required for the
successful installation of instruments and systems.
If Agilent is delivering installation and familiarization
services, users of the instrument should be present
throughout these services; otherwise, they will miss
important operational, maintenance, and safety information.
If Agilent is delivering installation and familiarization
services, delays due to inadequate site preparation could
cause loss of instrument use during the warranty period. In
extreme cases, Agilent Technologies may ask to be
reimbursed for the additional time required to complete the
installation. Agilent Technologies provides service during the
warranty period and under maintenance agreements only if
the specified site requirements are met.
8
GC, GC/MS, and ALS Site Preparation Guide
7890A GC Site Preparation
1
Dimensions and weight
Select the laboratory bench space before the system arrives.
Pay special attention to the total height requirements. Avoid
bench space with overhanging shelves. See Table 1.
The instrument needs space for proper convection of heat
and ventilation. Allow at least 25 cm (10 in) clearance
between back of the instrument and wall to dissipate hot air.
Table 1
Required height, width, depth, and weight
Product
Height
Width
Depth
Weight
7890A Series GCs
With third detector
50 cm (19 in)
50 cm (19 in)
59 cm (23 in)
68 cm (27 in)
54 cm (21 in)
54 cm (21 in)
50 kg (112 lb)
57 kg (125.4 lb)
• Diffusion pump
41 cm (16 in)
30 cm (12 in)
54 cm (22 in)
39 kg (85 lb)
• Standard turbo pump
41 cm (16 in)
30 cm (12 in)
54 cm (22 in)
39 kg (85 lb)
• Performance turbo pump
41 cm (16 in)
30 cm (12 in)
54 cm (22 in)
41 kg (90 lb)
• Performance CI/EI turbo pump
41 cm (16 in)
30 cm (12 in)
54 cm (22 in)
46 kg (100 lb)
Foreline pump
Standard
Oil-free
21 cm (8 in)
19 cm (7.5 in)
13 cm (5 in)
32 cm (13 in)
31 cm (12 in)
28 cm (11 in)
11 kg (23.1 lb)
16 kg (35.2 lb)
• Performance turbo pump
47 cm (18.5 in)
35 cm (14 in)
86 cm (34 in)
49 kg (180 lb)
Foreline pump
Standard
21 cm (8 in)
13 cm (5 in)
31 cm (12 in)
11 kg (23.1 lb)
G1888 Headspace sampler
56 cm (22 in)
46 cm (18.1 in)
64 cm (25 in)
46.3 kg (102 lb)
5975 Series MSDs
7000A Series GC/MS
Additional space requirements
• GC/MS operational and maintenance access
Requires 30 cm (1 ft) to its left
• Typical laser printer
Requires 41 cm (16 in)
• GC operational oven access
Requires ≥ 30 cm (12 in) open space above GC
• GC with 7693A ALS injector
Requires 50 cm (19.5 in) above the GC
3.9 kg (8,6 lb)
each
• GC with 7693A ALS tray
Requires 45 cm (17.5 in) left of the GC
Requires 2 cm (1 inch) in front of GC
6.8 kg (15 lb)
each
• GC with 7683B ALS injector
Requires 42 cm (16.5 in) above the GC
3.1 kg (7 lb) each
GC, GC/MS, and ALS Site Preparation Guide
9
1
7890A GC Site Preparation
Table 1
Required height, width, depth, and weight (continued)
Product
Height
Width
Depth
• GC with 7683B ALS tray
Requires 30 cm (12 in) left of the GC
• GC with CTC PAL Autosampler
Requires 66 cm (26 in) above the GC and 4 to
20 cm (1.5 to 8 in) to the left or right,
depending on configuration
Weight
3.0 kg (7 lb)
98 cm (3.2 ft)
168 cm (5.5 ft)
Depth: 92 cm (3 ft)
Figure 1
Top view of typical installation (7890A GC/MS system with 7693A ALS)
A simple 7890A system that includes a GC, an ALS, and a
computer would require about 168 cm (5.5 ft) of bench
space. Allowi7ng for operational access and a printer, a total
of 260 cm (8.5 ft) of bench space should be available for a
full GC/MS system. Some repairs to the GC/MS or to the GC
will also require access to the back of the instrument(s).
10
GC, GC/MS, and ALS Site Preparation Guide
7890A GC Site Preparation
1
Note that the length of the GC/MS vacuum hose is 130 cm
(4 ft 3 in) from the high vacuum pump to the foreline pump,
and the length of the foreline pump power cord is 2 m (6 ft
6 in).
GC, GC/MS, and ALS Site Preparation Guide
11
1
7890A GC Site Preparation
Power Consumption
Table 2 lists site power requirements.
• The number and type of electrical outlets depend on the
size and complexity of the system.
• Power consumption and requirements depend on the
country to which the unit ships. Find the instrument type
and your line voltage to find your instrument’s power
requirements.
• The electrical outlet for the unit should have a dedicated
ground. Voltage between ground and neutral should be
less than 2.5 VAC.
• The voltage requirements for your instrument are printed
near the power cord attachment.
Table 2
Power requirements
Product
Agilent
7890A
Standard
oven
Fast oven
5975 Series MSD
12
Line voltage (VAC)
Frequency
(Hz)
Current rating Maximum
(amps)
continuous power
consumption (VA)
Outlets
required
Americas: 120* single
phase (–10% / +10%)
48–63
18.8
2250
1
220/230/240
single/split phase
(–10% / +10%)
48–63
10.2/9.8/9.4
2250
1
Japan: 200 split phase
(–10% / +10%)
48–63
14.8
2950
1
220/230/240 † ‡
single/split phase
(–10% / +10%)
48–63
13.4 / 12.8 /
12.3
2950
1
120 (–10% / +5%)
50/60 ± 5%
8
1100 (400 for foreline
pump only)
1
220–240 (–10% / +5%) 50/60 ± 5%
8
1100 (400 for foreline
pump only)
1
200 (–10% / +5%)
8
1100 (400 for foreline
pump only)
1
50/60 ± 5%
GC, GC/MS, and ALS Site Preparation Guide
1
7890A GC Site Preparation
Table 2
Power requirements (continued)
Product
Line voltage (VAC)
Frequency
(Hz)
Current rating Maximum
(amps)
continuous power
consumption (VA)
Outlets
required
7000A Series GC/MS
120 (–10% / +5%)
50/60 ± 5%
8
1100 (400 for foreline
pump only)
1
220–240 (–10% / +5%) 50/60 ± 5%
8
1100 (400 for foreline
pump only)
1
200 (–10% / +5%)
50/60 ± 5%
8
1100 (400 for foreline
pump only)
1
100 (–10% / +5%)
50/60 ± 5%
15
1000
3–5
120 (–10% / +5%)
50/60 ± 5%
15
1000
3–5
200–240 (–10% / +5%) 50/60 ± 5%
15
1000
3–5
Data system PC system
(monitor, CPU, printer)
* Americas 120 VAC requires 20 amp dedicated line. Americas 240 VAC requires 15 amp dedicated line.
† Option 003, 208 VAC fast oven, uses a 220 VAC unit with operating range of 198 to 242 VAC. Most labs have 4-wire service resulting in
208 VAC at the wall receptacle. It is important to measure the line voltage at the receptacle for the GC.
‡ Power line conditioners should not be used with the GC.
WA R N I N G
Do not use extension cords with Agilent instruments. Extension cords
normally are not rated to carry enough power and can be a safety hazard.
Although your GC should arrive ready for operation in your
country, compare its voltage requirements with those listed
in Table 2. If the voltage option you ordered is not suitable
for your installation, contact Agilent Technologies.
CAUTION
A proper earth ground is required for GC operations. Any
interruption of the grounding conductor or disconnection of the
power cord could cause a shock that could result in personal injury.
To protect users, the metal instrument panels and cabinet
are grounded through the three- conductor power line cord
in accordance with International Electrotechnical
Commission (IEC) requirements.
GC, GC/MS, and ALS Site Preparation Guide
13
1
7890A GC Site Preparation
The three- conductor power line cord, when plugged into a
properly grounded receptacle, grounds the instrument and
minimizes shock hazard. A properly grounded receptacle is
one that is connected to a suitable earth ground. Be sure to
verify proper receptacle grounding.
Connect the GC to a dedicated receptacle. Use of a
dedicated receptacle reduces interference.
USA fast heating oven, 240 V
The 240 V fast heating oven requires 240 V/15A power. Do
not use 208 V power. Lower voltage causes slow oven ramps
and prevents proper temperature control. The power cord
supplied with your GC is rated for 250 V/15A, and is a
two- pole, three- wire cord with grounding (type
L6- 15R/L6- 15P). See the figure below.
Receptacle
L6-15R
Plug
L6-15P
Canadian installation
When installing a GC in Canada, make sure your GC’s power
supply circuit meets the following additional requirements:
• The circuit breaker for the branch circuit, which is
dedicated to the instrument, is rated for continuous
operation.
• The service box branch circuit is marked as a “Dedicated
Circuit.”
14
GC, GC/MS, and ALS Site Preparation Guide
7890A GC Site Preparation
1
Heat Dissipation
Use Table 3 to estimate the additional BTUs of heat
dissipated from this equipment. Maximums represent the
heat given off when heated zones are set for maximum
temperatures.
Table 3
Heat dissipation
Oven type
Standard oven ramp
Fast oven ramp (options 002 and 003)
Agilent 7890A
7681 BTU/hour maximum
10,071 BTU/hour maximum
Agilent 5975 Series
3000 BTU/hour including GC/MS interface
Agilent 7000A Series
3000 BTU/hour including GC/MS interface
GC, GC/MS, and ALS Site Preparation Guide
15
1
7890A GC Site Preparation
Exhaust Venting
Hot air (up to 450 °C) from the oven exits through a vent in
the rear. Allow at least 25 cm (10 in) clearance behind the
instrument to dissipate this air.
WA R N I N 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.
An optional oven exhaust deflector (G1530- 80650) is
available and may improve oven cooling by deflecting the
exhaust air up and away from the instrument. For GCs with
the exhaust deflector option installed, the exhaust is about
65 ft3/min (1.840 m3/min). Without the deflector, the
exhaust rate is about 99 ft3/min (2.8 m3/min). The deflector
outlet diameter is 10 cm (4 in).
During normal operation of the GC with many detectors and
inlets, some of the carrier gas and sample vents outside the
instrument through the split vent, septum purge vent, and
detector exhaust. If any sample components are toxic or
noxious, or if hydrogen is used as the carrier gas, 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, attach
a chemical trap to the vent(s).
Vent the GC/MS system externally to the building via an
ambient- pressure vent system, within 460 cm (15 ft) of both
the GC split vent and GC/MS foreline pump, or vent to a
fume hood. Note that an exhaust vent system is not part of
the building environmental control system, which
recirculates air. Exhaust venting must comply with all local
environmental and safety codes. Contact your Environmental
Health & Safety (EHS) specialist.
16
GC, GC/MS, and ALS Site Preparation Guide
7890A GC Site Preparation
1
Environmental conditions
Operating the instrument within the recommended ranges
optimizes instrument performance and lifetime. Performance
can be affected by sources of heat and cold from heating, air
conditioning systems, or drafts. See Table 4. The conditions
assume a noncondensing, noncorrosive atmosphere.
Table 4
Environmental conditions for operation and storage
Product
Conditions
Operating temp
range
Operating
humidity range
Maximum
altitude
Agilent 7890A Series
Standard oven ramp
0 to 55 °C
5 to 95%
4,615 m
Fast oven ramp (options 002 and
003)
0 to 55 °C
5 to 95%
4,615 m
Storage
-20 to 70 °C
5 to 95%
Operation
15 to 35 °C*
(59 to 95 °F)
40 to 80%
Storage
–20 to 70 °C
(–4 to 158 °F)
0 to 95%
Operation
15 to 35 °C*
(59 to 95 °F)
40 to 80%
Storage
–20 to 70 °C
(–4 to 158 °F)
0 to 95%
7000A Series
5975 Series
4,615 m†
4,615 m†
* Operation requires constant temperature (variations < 2 oC/hour)
† 5975B VL MSD: 2,300 m
GC, GC/MS, and ALS Site Preparation Guide
17
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7890A GC Site Preparation
Gas Selection
Table 5 lists gases usable with Agilent GCs and capillary
columns. When used with capillary columns, GC detectors
require a separate makeup gas for optimum sensitivity.
Table 5
Gases usable with Agilent GCs and capillary columns
Detector type
Carrier
Preferred makeup
Alternate choice
Detector, anode
purge, or reference
Electron capture (ECD)
Hydrogen
Helium
Nitrogen*
Argon/Methane*
Argon/Methane
Argon/Methane
Nitrogen
Argon/Methane
Nitrogen
Nitrogen
Argon/Methane
Nitrogen
Anode purge must
be same as makeup
Flame ionization (FID)
Hydrogen
Helium
Nitrogen*
Nitrogen
Nitrogen
Nitrogen
Helium
Helium
Helium
Hydrogen and air for
detector
Flame photometric (FPD)
Hydrogen
Helium
Nitrogen*
Argon*
Nitrogen
Nitrogen
Nitrogen
Nitrogen
Nitrogen-Phosphorus (NPD)
Helium
Nitrogen*
Nitrogen
Nitrogen
Helium†
Helium
Hydrogen and air for
detector
Thermal conductivity (TCD)
Hydrogen
Helium
Nitrogen*
Must be same as
carrier and
reference
Must be same as
carrier and
reference
Reference must be
same as carrier and
makeup
Hydrogen and air for
detector
* Not generally suitable for GC/MS carrier gas.
† Depending on bead type, higher makeup gas flow rates (> 5 mL/min) may introduce cooling effects or shorten bead life.
Table 6 lists gas recommendations for packed column use. In
general, makeup gases are not required with packed
columns.
Table 6
Gases usable with Agilent GCs and packed columns
Detector type
Carrier gas
Comments
Detector, anode purge, or
reference
Electron capture (ECD)
Nitrogen
Maximum sensitivity
Nitrogen
Argon/methane
Maximum dynamic range
Argon/Methane
Nitrogen
Maximum sensitivity
Hydrogen and air for
detector.
Helium
Acceptable alternative
Flame ionization (FID)
18
GC, GC/MS, and ALS Site Preparation Guide
1
7890A GC Site Preparation
Table 6
Gases usable with Agilent GCs and packed columns (continued)
Detector type
Carrier gas
Flame photometric (FPD)
Hydrogen
Helium
Nitrogen
Argon
Nitrogen-Phosphorus (NPD)
Helium
Optimum performance
Nitrogen
Acceptable alternative
Helium
General use
Hydrogen
Nitrogen
Argon
Maximum sensitivity*
Hydrogen detection†
Maximum hydrogen
sensitivity1
Thermal conductivity (TCD)
Comments
Detector, anode purge, or
reference
Hydrogen and air for
detector.
Hydrogen and air for
detector.
Reference must be same
as carrier and makeup.
* Slightly greater sensitivity than helium. Incompatible with some compounds.
† For analysis of hydrogen or helium. Greatly reduces sensitivity for other compounds.
Agilent recommends that carrier and detector gases be
99.9995% pure. See Table 7. Air needs to be zero grade or
better. Agilent also recommends using high quality traps to
remove hydrocarbons, water, and oxygen.
Table 7
Carrier and reagent gas purity
Carrier and reagent gas
requirements
Purity
Notes
Helium (carrier)
99.9995%
Hydrocarbon free
Hydrogen (carrier)
99.9995%
SFC grade
Methane reagent gas*
99.999%
Research or SFC
grade
Isobutane reagent gas†
99.99%
Instrument grade
Ammonia reagent gas*
99.9995%
Research or SFC
grade
Carbon dioxide reagent gas†
99.995%
SFC grade
* Required reagent gas for installation and performance verification, CI MSDs only.
† Optional reagent gases, CI MSDs only
For installation checkout, Agilent requires the gas types
shown in Table 8.
GC, GC/MS, and ALS Site Preparation Guide
19
1
20
7890A GC Site Preparation
Table 8
Gases required for checkout
Detector
Gases required
FID
Carrier: helium
Makeup: nitrogen
Fuel: hydrogen
Aux gas: Air
TCD
Carrier and reference: helium
NPD
Carrier: helium
Makeup: nitrogen
Fuel: hydrogen
Aux gas: Air
uECD
Carrier: helium
Anode purge and makeup: nitrogen
FPD
Carrier: helium
Makeup: nitrogen
Fuel: hydrogen
Aux gas: Air
GC, GC/MS, and ALS Site Preparation Guide
7890A GC Site Preparation
1
Gas Supply
Supply instrument gases using tanks, an internal distribution
system, or gas generators. If used, tanks require two- stage
pressure regulators with packless, stainless steel diaphragms.
The instrument requires 1/8- inch Swagelok connections to
its gas supplies. See Figure 2. Plumb the gas supply
tubing/regulators so that one 1/8- inch Swagelok female
connector is available for each gas needed at the GC.
Swagelok nut and ferrules
Female Swagelok fitting on GC
Figure 2
Example Swagelok connector and hardware
Table 9 lists minimum and maximum delivery pressures for
inlets and detectors, measured at the bulkhead fittings on
the back of the instrument.
Table 9
Delivery pressures required at the GC/MS, in kPa (psig)
Detector type
FID
NPD
Inlet type
TCD
ECD
FPD
Hydrogen 240–690 240–690
(35–100) (35–100)
310–690
(45–100)
Air
380–690 380–690
(55–100) (55–100)
690–827
(100–120)
Makeup
380–690 380–690 380–690 380–690 380–690
(55–100) (55–100) (55–100) (55–100) (55–100)
Reference
Split/Splitless Split/Splitless On-column Purged PTV
150 psi
100 psi
packed
380–690
(55–100)
GC, GC/MS, and ALS Site Preparation Guide
21
1
7890A GC Site Preparation
Table 9
Delivery pressures required at the GC/MS, in kPa (psig) (continued)
Detector type
FID
NPD
Inlet type
TCD
ECD
FPD
Split/Splitless Split/Splitless On-column Purged PTV
150 psi
100 psi
packed
Carrier
(max)
1,172 (170)
827 (120)
827 (120)
Carrier
(min)
(20 psi) above pressure used in method
827
(120)
827
(120)
Conversions: 1 psi = 6.8947 kPa = 0.068947 Bar = 0.068 ATM
Notes:
• If you have not requested option 305, you must supply
pre- cleaned, 1/8- inch copper tubing and a variety of
1/8- inch Swagelok fittings to connect the GC to inlet and
detector gas supplies.
• Cryogenic cooling with Liquid N2 requires 1/4- inch
insulated copper tubing.
• Cryogenic cooling with Liquid CO2 requires 1/8- inch
heavy- walled, stainless steel tubing.
• If you purchased automated valving, the valve actuation
requires a separate pressurized, dry air supply at
380 kPa (55 psig). This air supply must end in a male
fitting compatible with a 1/4- inch id plastic tube at the
GC.
• Never use liquid thread sealer to connect fittings. Never
use chlorinated solvents to clean tubing or fittings.
Table 10 lists the limits on total gas flow into the 7000A
Series MSD.
Table 10 7000A Series total gas flow limitations
22
Feature
G3172A
G3174A
High vacuum pump
Performance
turbo
Performance
turbo,
EI/PCI/NCI
Optimal gas flow mL/min*
1.0 to 2.0
1.0 to 2.0
Maximum recommended gas flow, mL/min
4.0
4.0
Maximum gas flow, mL/min†
6.5
4.0
Max column id
0.53 mm (30 m) 0.53 mm (30 m)
GC, GC/MS, and ALS Site Preparation Guide
1
7890A GC Site Preparation
* Total gas flow into the GC/MS: column flow plus reagent gas flow (if applicable).
† Expect degradation of spectral performance and sensitivity.
Table 11 lists typical flows resulting from selected carrier
and reagent gas source pressures.
Table 11 7000A Series carrier and reagent gases
Carrier and reagent gas
requirements
Typical pressure
range
Typical flow
(mL/min)
Helium (required)
(column and split flow)
345 to 552 kPa
(50 to 80 psi)
20 to 50
Hydrogen (optional)*
(column and split flow)
345 to 552 kPa
(50 to 80 psi)
20 to 50
Methane reagent gas
(required for CI operation)
103 to 172 kPa
(15 to 25 psi)
1 to 2
Isobutane reagent gas (optional)
103 to 172 kPa
(15 to 25 psi)
1 to 2
Ammonia reagent gas (optional)
34 to 55 kPa
(5 to 8 psi)
1 to 2
Carbon dioxide reagent gas (optional) 103 to 138 kPa
(15 to 20 psi)
1 to 2
* Hydrogen gas can be used for the carrier gas but specifications are based on helium as the
carrier gas. Please observe all hydrogen gas safety cautions.
Table 12 lists the limits on total gas flow into the 5975
Series MSD.
Table 12 5975 Series total gas flow limitations
Feature
G3170A
G3171A
G3172A
High vacuum
pump
Diffusion
Standard
turbo
Performance Performance
turbo
turbo,
EI/PCI/NCI
Optimal gas flow
mL/min*
1.0
1.0
1.0 to 2.0
1.0 to 2.0
Maximum
recommended gas
flow, mL/min
1.5
2.0
4.0
4.0
GC, GC/MS, and ALS Site Preparation Guide
G3174A
23
1
7890A GC Site Preparation
Table 12 5975 Series total gas flow limitations
Feature
G3170A
G3171A
G3172A
G3174A
Maximum gas
flow, mL/min†
2.0
2.4
6.5
4.0
Max column id
0.25 mm
(30 m)
0.32 mm
(30 m)
0.53 mm
(30 m)
0.53 mm
(30 m)
* Total gas flow into the GC/MS: column flow plus reagent gas flow (if applicable).
† Expect degradation of spectral performance and sensitivity.
Table 12 lists typical flows resulting from selected carrier
and reagent gas source pressures.
Table 13 5975 Series carrier and reagent gases
Carrier and reagent gas
requirements
Typical pressure
range
Typical flow
(mL/min)
Helium (required)
(column and split flow)
345 to 552 kPa
(50 to 80 psi)
20 to 50
Hydrogen (optional)*
(column and split flow)
345 to 552 kPa
(50 to 80 psi)
20 to 50
Methane reagent gas
(required for CI operation)
103 to 172 kPa
(15 to 25 psi)
1 to 2
Isobutane reagent gas (optional)
103 to 172 kPa
(15 to 25 psi)
1 to 2
Ammonia reagent gas (optional)
34 to 55 kPa
(5 to 8 psi)
1 to 2
Carbon dioxide reagent gas (optional) 103 to 138 kPa
(15 to 20 psi)
1 to 2
* Hydrogen gas can be used for the carrier gas but specifications are based on helium as the
carrier gas. Please observe all hydrogen gas safety cautions.
24
GC, GC/MS, and ALS Site Preparation Guide
7890A GC Site Preparation
1
Gas Plumbing
WA R N I N G
All compressed gas cylinders should be securely fastened to an
immovable structure or permanent wall. Compressed gases
should be stored and handled in accordance with the relevant
safety codes.
Gas cylinders should not be located in the path of heated oven
exhaust.
To avoid possible eye injury, wear eye protection when using
compressed gas.
Two-stage regulation
On/off valve
Shutoff valve
Main supply
on/off valve
Indicating oxygen trap
Main gas supply
Big universal trap
(combination trap for moisture,
hydrocarbons, and oxygen)
Trap size and shape will vary by manufacturer.
Figure 3
Recommended traps and plumbing configuration from a carrier gas cylinder
• Agilent strongly recommends two- stage regulators to
eliminate pressure surges. High- quality, stainless- steel
diaphragm- type regulators are especially recommended.
• On/off valves mounted on the outlet fitting of the
two- stage regulator are not essential but are very useful.
Be sure the valves have stainless- steel, packless
diaphragms.
GC, GC/MS, and ALS Site Preparation Guide
25
1
7890A GC Site Preparation
• FID, FPD, and NPD detectors require a dedicated air
supply. Operation may be affected by pressure pulses in
air lines shared with other devices.
• Flow- and pressure- controlling devices require at least
10 psi (138 kPa) pressure differential across them to
operate properly. Set source pressures and capacities high
enough to ensure this.
• Situate auxiliary pressure regulators close to the GC inlet
fittings. This ensures that the supply pressure is
measured at the instrument (rather than at the source);
pressure at the source may be different if the gas supply
lines are long or narrow.
Supply tubing for carrier and detector gases
Use only preconditioned copper tubing (part number
5180- 4196) to supply gases to the instrument. Do not use
ordinary copper tubing—it contains oils and contaminants.
CAUTION
Do not use methylene chloride or other halogenated solvent to clean
tubing that will be used with an electron capture detector. They will
cause elevated baselines and detector noise until they are
completely flushed out of the system.
CAUTION
Do not use plastic tubing for suppling detector and inlet gases to the
GC. It is permeable to oxygen and other contaminants that can
damage columns and detectors.
Plastic tubing can melt if near hot exhaust or components.
The tubing diameter depends on the distance between the
supply gas and the GC and the total flow rate for the
particular gas. Tubing of 1/8- in diameter is adequate when
the supply line is less than 15 feet (4.6 m) long.
Use larger diameter tubing (1/4- in) for distances greater
then 15 feet (4.6 m) or when multiple instruments are
connected to the same source. Use larger diameter tubing if
high demand is anticipated (for example, air for an FID).
Be generous when cutting tubing for local supply lines—a coil
of flexible tubing between the supply and the instrument lets
you move the GC without moving the gas supply. Take this
extra length into account when choosing the tubing diameter.
26
GC, GC/MS, and ALS Site Preparation Guide
7890A GC Site Preparation
1
Two-stage pressure regulators
To eliminate pressure surges, use a two- stage regulator with
each gas tank. Stainless steel, diaphragm- type regulators are
recommended.
2 stage regulator
Adapter to 1/8-inch female
Swagelok fitting
The type of regulator you use depends on the gas type and
supplier. The Agilent catalog for consumables and supplies
contains information to help you identify the correct
regulator, as determined by the Compressed Gas Association
(CGA). Agilent Technologies offers pressure- regulator kits
that contain all the materials needed to install regulators
properly.
Pressure regulator-gas supply tubing connections
Use Teflon® tape to seal the pipe- thread connection between
the pressure regulator outlet and the fitting to which you
connect the gas tubing. Instrument grade Teflon tape (part
number 0460- 1266), from which volatiles have been removed,
is recommended for all fittings. Do not use pipe dope to seal
the threads; it contains volatile materials that will
contaminate the tubing.
GC, GC/MS, and ALS Site Preparation Guide
27
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7890A GC Site Preparation
Traps
Using chromatographic- grade gases ensures that the gas in
your system is pure. However, for optimum sensitivity, install
high- quality traps to remove traces of water or other
contaminants. After installing a trap, check the gas supply
lines for leaks.
Table 14 lists the recommended traps. See the Agilent online
store for the complete listing of traps and trap accessories.
As shown in Figure 3, install the indicating trap last so that
it warns when the combination begins to fail.
Table 14 Recommended traps
Description
Part number
Big universal trap. Removes oxygen, moisture, hydrocarbons,
carbon dioxide and carbon monoxide from helium gas
streams.
RMS
Indicating oxygen trap (for carrier and ECD gases).
IOT-2-HP
Moisture in carrier gas damages columns. Agilent
recommends installing a moisture trap after the source
regulator and before any other traps.
A hydrocarbon trap removes organics from gases. Place it
after a molecular sieve trap and before an oxygen trap, if
they are present.
An oxygen trap removes 99% of the oxygen from a gas plus
traces of water. Place it last in a series of traps. Because
trace amounts of oxygen can damage columns and degrade
uECD performance, use an oxygen trap with carrier and
uECD gases. Do not use it with FID, FPD, or NPD fuel gases.
28
GC, GC/MS, and ALS Site Preparation Guide
1
7890A GC Site Preparation
Cryogenic Cooling Requirements
Cryogenic cooling allows you to cool the oven below ambient
temperature. A solenoid valve introduces liquid coolant,
either carbon dioxide (CO2) or nitrogen (N2), to cool the
oven to the desired temperature.
CO2 and N2 require different hardware on the GC.
Using carbon dioxide
WA R N I N G
Pressurized liquid CO2 is a hazardous material. Take precautions
to protect personnel from high pressures and low temperatures.
CO2 in high concentrations is toxic to humans; take precautions to
prevent hazardous concentrations. Consult your local supplier for
recommended safety precautions and delivery system design.
CAUTION
Liquid CO2 should not be used as a coolant for temperatures below
–40°C because the expanding liquid may form solid CO2—dry
ice—in the GC oven. If dry ice builds up in the oven, it can seriously
damage the GC.
Liquid CO2 is available in high- pressure tanks containing
liquid. The CO2 should be free of particulate material, oil,
and other contaminants. These contaminants could clog the
expansion orifice or affect the proper operation of the GC.
WA R N I N G
Do not use copper tubing or thin-wall stainless steel tubing with
liquid CO2. Both harden at stress points and may explode.
Additional requirements for the liquid CO2 system include:
• The tank must have an internal dip tube or eductor tube
to deliver liquid CO2 instead of gas (see the figure below).
• Set the liquid CO2 pressure to the GC at 4830 to
6900 kPa (700 to 1,000 psi) at a temperature of 25 °C.
• Use 1/8- inch diameter heavy- wall stainless steel tubing
for supply tubing. The tubing should be between 1.5 and
15 m (5 and 50 feet) long.
• Coil and fasten the ends of the tubing to prevent it from
“whipping” if it breaks.
GC, GC/MS, and ALS Site Preparation Guide
29
1
7890A GC Site Preparation
• Do not install a pressure regulator on the CO2 tank, as
vaporization and cooling would occur in the regulator
instead of the oven.
• Do not use a padded tank (one to which another gas is
added to increase the pressure).
Dip tube
Correct configuration
Incorrect configuration
Using liquid nitrogen
WA R N I N G
Liquid nitrogen is a hazard because of the extremely low
temperatures and high pressures that may occur in improperly
designed supply systems.
Liquid nitrogen can present an asphyxiant hazard if vaporizing
nitrogen displaces oxygen in the air. Consult local suppliers for
safety precautions and design information.
Liquid nitrogen is supplied in insulated Dewar tanks. The
correct type for cooling purposes is a low- pressure Dewar
equipped with a dip tube—to deliver liquid rather than
gas—and a safety relief valve to prevent pressure build- up.
The relief valve is set by the supplier at 138 to 172 kPa (20
to 25 psi).
30
GC, GC/MS, and ALS Site Preparation Guide
7890A GC Site Preparation
WA R N I N G
1
If liquid nitrogen is trapped between a closed tank valve and the
cryo valve on the GC, tremendous pressure will develop and may
cause an explosion. For this reason, keep the delivery valve on the
tank open so that the entire system is protected by the pressure
relief valve.
To move or replace a tank, close the delivery valve and carefully
disconnect the line at either end to let residual nitrogen escape.
Additional requirements for the liquid N2 system include:
• Set the liquid N2 pressure to the GC at 138 to 207 kPa
(20 to 30 psi).
• Make sure the supply tubing for liquid N2 is insulated.
Foam tubing used for refrigeration and air- conditioning
lines is suitable for insulation. Since pressures are low,
insulated copper tubing is adequate.
• Situate the liquid nitrogen tank close (within 1.5 to 3 m,
or 5 to 10 feet) to the GC to ensure that liquid, not gas,
is supplied to the inlet.
GC, GC/MS, and ALS Site Preparation Guide
31
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7890A GC Site Preparation
Maximum Length of Cables
The distance between system modules may be limited by
some of the cabling and the vent or vacuum hoses.
• A GC/MS system foreline pump can be located on the
laboratory bench or on the floor. It must be close to the
MSD because it is connected by a 200- cm (79- inch) hose.
The hose is stiff and cannot be bent sharply. The length
of the vacuum hose is 130 cm (4.24 feet) from the high
vacuum pump to the foreline pump, while the length of
the foreline pump power cord is 2 meters (6.6 feet).
• The length of the Agilent- supplied remote cable is 2
meters (6.6 feet).
• The length of the Agilent- supplied LAN cable is 10 meters
(32.8 feet).
• The lengths of the power cords are 2 meters (6.6 feet).
• The length of a G1888 Headspace Sampler transfer line is
about 80 cm (31.5 inches).
32
GC, GC/MS, and ALS Site Preparation Guide
1
7890A GC Site Preparation
Site LAN Network
If you intend to connect your system to your site’s LAN
network, you must have an additional shielded twisted pair
network cable.
NOTE
Agilent Technologies is not responsible for connecting to or establishing
communication with your site LAN network. The representative will test
the system’s ability to communicate on a mini-hub or LAN switch only.
NOTE
The IP addresses assigned to the instrument(s) must be fixed
(permanently assigned) addresses. If you intend to connect your system to
your site’s network, each piece of equipment must have a unique, fixed
(static) IP address assigned to it.
GC, GC/MS, and ALS Site Preparation Guide
33
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7890A GC Site Preparation
Basic Tools
The GC/MS comes with a few basic tools and consumables
depending on the specific inlet and detector that you
ordered. Below is a general list of what comes with the
instrument.
Table 15 Basic tools
Tool or consumable
Used for
7890A GC
T10 and T20 Torx wrenches
Removing tray. Removing covers to
access gas control modules, traps, and
pneumatic connections.
1/4-inch nut driver
FID jet replacement.
FID flow measuring insert
FID troubleshooting.
Column cutter, ceramic or diamond
Column installation.
1/8-inch Tee, Swagelok, brass
Connect gas supplies.
1/8-inch nuts & ferrules, Swagelok,
brass
Connect gas supplies.
Inlet septa appropriate for type
Inlet seal.
Inlet insert or liner
Contains sample during vaporization in
inlet.
GC/MS
1.5-mm and 2.0-mm hex driver
Source maintenance (disassembly).
Tool bag
Holding GC and MS tools.
Q-Tips
Cleaning source parts.
Cloths
Keeping surfaces and parts clean.
Gloves
Reducing contamination on GC and
MSD parts.
Funnel
Changing oil.
Hex key, 5 mm
Removing oil plug and screws in safety
shield handle.
Table 16 lists other useful tools not included with the GC.
34
GC, GC/MS, and ALS Site Preparation Guide
7890A GC Site Preparation
1
Table 16 Useful tools not included with GC
Tool
Used for
Custom Tee, G3430-60009
Connecting the same gas to front and
back EPC module.
ECD/TCD Detector plug, 5060-9055
Inlet pressure decay test
1/8-inch Ball Valve, 0100-2144
Inlet pressure decay test (one per
inlet)
Digital flow meter, Flow tracker 1000
Verifying flows, checking for leaks and
plugs
Electronic gas leak detector
Locating gas leaks; safety checks
when using Hydrogen
Column cutters
Cutting columns
T-10 and T-20 Torx drivers
Removing tray; removing covers to
access EPC modules, traps, and
possible leaks
1/8-inch tubing cutter (wire cutter
type)
Cutting gas supply tubing
Assorted wrenches: 1/4-inch,
3/8-inch, 7/16-inch, 9/16-inch
Gas supply and plumbing fittings
Electronic vial crimper
Assuring consistently air-tight vial
closure, regardless of who does the
crimping
Table 17 lists consumables that you may wish to order. First
time GC users should consider purchasing the following
supplies in order to maintain their system and prevent
interruptions in the use of their system. Please refer to the
latest Agilent consumables and supplies catalog and to the
Agilent web site at www.aglent.com/chem for part numbers
and recommended maintenance periods.
Table 17 Additional consumables
Consumable category
Consumable
Inlet supplies
Septa, o-rings, liners, adapter, and
seals
Inlet preventative maintenance (PM)
kits
Kits with individual parts needed to
maintain an inlet
Pneumatic supplies
Gases, traps, o-rings, seals, Swagelok
fittings
GC, GC/MS, and ALS Site Preparation Guide
35
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7890A GC Site Preparation
Table 17 Additional consumables
36
Consumable category
Consumable
Column supplies
Nuts, ferrules, adapters, guard
columns, retention gaps
Detector supplies
Jets, beads, liners, adapters, cleaning
kits
Application supplies
Standards, columns, syringes
GC, GC/MS, and ALS Site Preparation Guide
GC, GC/MS, and ALS
Site Preparation Guide
6890 Series GC Site Preparation
Customer Responsibilities 38
Dimensions and weight 39
Power Consumption 41
Heat Dissipation 43
Exhaust Venting 44
Environmental conditions 45
Gas Selection 46
Gas Supply 49
Gas Plumbing 52
Cryogenic Cooling Requirements 56
Maximum Length of Cables 59
Site LAN Network 60
Basic Tools 61
This section outlines the space and resource requirements
for GC, GC/MS, and automatic liquid sampler (ALS)
installation. For a successful and timely installation of the
instrument, the site must meet these requirements before
beginning installation. Necessary supplies (gases, tubing,
operating supplies, consumables, and other usage- dependent
items such as columns, vials, syringes, and solvents) must
also be available. Note that performance verification requires
the use of helium carrier gas, and for 5975 MSD systems
using chemical ionization, methane reagent gas. Refer to the
Agilent Web site at www.agilent.com/chem for the most
up- to- date listing of GC, GC/MS, and ALS supplies and
consumables.
Agilent Technologies
37
2
6890 Series GC Site Preparation
Customer Responsibilities
The specifications in this manual outline the necessary
space, electrical outlets, gases, tubing, operating supplies,
consumables, and other usage- dependent items such as
columns, vials, syringes, and solvents required for the
successful installation of instruments and systems.
If Agilent is delivering installation and familiarization
services, users of the instrument should be present
throughout these services; otherwise, they will miss
important operational, maintenance, and safety information.
If Agilent is delivering installation and familiarization
services, delays due to inadequate site preparation could
cause loss of instrument use during the warranty period. In
extreme cases, Agilent Technologies may ask to be
reimbursed for the additional time required to complete the
installation. Agilent Technologies provides service during the
warranty period and under maintenance agreements only if
the specified site requirements are met.
38
GC, MSD, and ALS Site Preparation Guide
2
6890 Series GC Site Preparation
Dimensions and weight
Select the laboratory bench space before the system arrives.
Pay special attention to the total height requirements. Avoid
bench space with overhanging shelves. See Table 18.
The instrument needs space for proper convection of heat
and ventilation. Allow at least 25 cm (10 in) clearance
between back of the instrument and wall to dissipate hot air.
Table 18 Required height, width, depth, and weight
Product
Height
Width
Depth
Weight
6890 Series GCs
54 cm (22 in)
55 cm (22 in)
54 cm (21 in)
50 kg (112 lb)
• Diffusion pump
41 cm (16 in)
30 cm (12 in)
54 cm (22 in)
39 kg (85 lb)
• Standard turbo pump
41 cm (16 in)
30 cm (12 in)
54 cm (22 in)
39 kg (85 lb)
• Performance turbo pump
41 cm (16 in)
30 cm (12 in)
54 cm (22 in)
41 kg (90 lb)
• Performance CI/EI turbo pump
41 cm (16 in)
30 cm (12 in)
54 cm (22 in)
46 kg (100 lb)
Foreline pump
Standard
Oil-free
21 cm (8 in)
19 cm (7.5 in)
13 cm (5 in)
32 cm (13 in)
31 cm (12 in)
28 cm (11 in)
11 kg (23.1 lb)
16 kg (35.2 lb)
G1888 Headspace sampler
56 cm (22 in)
46 cm (18.1 in)
64 cm (25 in)
46.3 kg (102 lb)
5975 Series MSDs
Additional space requirements
• GC/MS operational and maintenance access
Requires 30 cm (1 ft) to its left
• Typical laser printer
Requires 41 cm (16 in)
• GC operational oven access
Requires ≥ 30 cm (12 in) open space above GC
• GC with 7693A ALS injector
Requires 50 cm (19.5 in) above the GC
3.9 kg (8,6 lb)
each
• GC with 7693A ALS tray
Requires 45 cm (17.5 in) left of the GC
Requires 2 cm (1 inch) in front of GC
6.8 kg (15 lb)
each
• GC with 7683B ALS injector
Requires 42 cm (16.5 in) above the GC
3.1 kg (7 lb) each
• GC with 7683B ALS tray
Requires 30 cm (12 in) left of the GC
3.0 kg (7 lb)
• GC with CTC PAL Autosampler
Requires 66 cm (26 in) above the GC and 4 to
20 cm (1.5 to 8 in) to the left or right,
depending on configuration
GC, MSD, and ALS Site Preparation Guide
39
2
6890 Series GC Site Preparation
Foreline
pump
GC/MS
GC
Computer with monitor
Printer
ALS tray
Figure 4
Top view of typical installation (6890 GC/MS system with ALS)
A simple 6890 system that includes a GC, an ALS, and a
computer would require about 164 cm (5 ft 4 in.) of bench
space. Allowing for operational access and a printer, a total
of 255 cm (8 ft 4 in.) of bench space should be available for
a full GC/MS system. Some repairs to the MSD or to the GC
will also require access to the back of the instrument(s).
Note that the length of the GC/MS vacuum hose is 130 cm
(4 ft 3 in) from the high vacuum pump to the foreline pump,
and the length of the foreline pump power cord is 2 m (6 ft
6 in).
40
GC, MSD, and ALS Site Preparation Guide
2
6890 Series GC Site Preparation
Power Consumption
Table 19 lists site power requirements.
• The number and type of electrical outlets depend on the
size and complexity of the system.
• Power consumption and requirements depend on the
country to which the unit ships. Find the instrument type
and your line voltage to find your instrument’s power
requirements.
• The electrical outlet for the unit should have a dedicated
ground. Voltage between ground and neutral should be
less than 2.5 VAC.
• The voltage requirements for your instrument are printed
near the power cord attachment.
Table 19 Power requirements
Product
Agilent
6890
Standard
oven
Fast oven
5975 Series MSD
Data system PC system
(monitor, CPU, printer)
Line voltage (VAC)
Frequency
(Hz)
Current rating Maximum
(amps)
continuous power
consumption (VA)
Outlets
required
Americas: 120* single
phase (–10% / +5%)
48–66
18.8
2250
1
220/230/240
single/split phase
(–10% / +5%)
48–66
10.2/9.8/9.4
2250
1
Japan: 200 split phase
(–10% / +5%)
48–66
14.
2950
1
220/230/240 † ‡
single/split phase
(–10% / +5%)
48–66
13.4 / 12.8 /
12.3
2950
1
120 (–10% / +5%)
50/60 ± 5%
8
1100 (400 for foreline
pump only)
1
220–240 (–10% / +5%) 50/60 ± 5%
8
1100 (400 for foreline
pump only)
1
200 (–10% / +5%)
50/60 ± 5%
8
1100 (400 for foreline
pump only)
1
100 (–10% / +5%)
50/60 ± 5%
15
1000
3–5
120 (–10% / +5%)
50/60 ± 5%
15
1000
3–5
200–240 (–10% / +5%) 50/60 ± 5%
15
1000
3–5
* Americas 120 VAC requires 20 amp dedicated line. Americas 240 VAC requires 15 amp dedicated line.
GC, MSD, and ALS Site Preparation Guide
41
2
6890 Series GC Site Preparation
† Option 003, 208 VAC fast oven, uses a 220 VAC unit with operating range of 198 to 242 VAC. Most labs have 4-wire service resulting in
208 VAC at the wall receptacle. It is important to measure the line voltage at the receptacle for the GC.
‡ Power line conditioners should not be used with 6890 or 7890A GCs.
WA R N I N G
Do not use extension cords with Agilent instruments. Extension cords
normally are not rated to carry enough power and can be a safety hazard.
Although your GC should arrive ready for operation in your
country, compare its voltage requirements with those listed
in Table 19. If the voltage option you ordered is not suitable
for your installation, contact Agilent Technologies.
42
GC, MSD, and ALS Site Preparation Guide
6890 Series GC Site Preparation
2
Heat Dissipation
Use Table 20 to estimate the additional BTUs of heat
dissipated from this equipment. Maximums represent the
heat given off when heated zones are set for maximum
temperatures.
Table 20 Heat dissipation
Oven type
Standard oven ramp
Fast oven ramp (options 002 and 003)
Agilent 6890 Series
7681 BTU/hour maximum
10,071 BTU/hour maximum
Agilent 5975 Series
3000 BTU/hour including GC/MS interface
GC, MSD, and ALS Site Preparation Guide
43
2
6890 Series GC Site Preparation
Exhaust Venting
Hot air (up to 450 °C) from the oven exits through a vent in
the rear. Allow at least 25 cm (10 in) clearance behind the
instrument to dissipate this air.
WA R N I N 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.
An optional oven exhaust deflector (G1530- 80650) is
available and may improve oven cooling by deflecting the
exhaust air up and away from the instrument. For GCs with
the exhaust deflector option installed, the exhaust is about
65 ft3/min (1.840 m3/min). Without the deflector, the
exhaust rate is about 99 ft3/min (2.8 m3/min). The deflector
outlet diameter is 10 cm (4 in).
During normal operation of the GC with many detectors and
inlets, some of the carrier gas and sample vents outside the
instrument through the split vent, septum purge vent, and
detector exhaust. If any sample components are toxic or
noxious, or if hydrogen is used as the carrier gas, 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, attach
a chemical trap to the vent(s).
Vent the GC/MS system externally to the building via an
ambient- pressure vent system, within 460 cm (15 ft) of both
the GC split vent and GC/MS foreline pump, or vent to a
fume hood. Note that an exhaust vent system is not part of
the building environmental control system, which
recirculates air. Exhaust venting must comply with all local
environmental and safety codes. Contact your Environmental
Health & Safety (EHS) specialist.
44
GC, MSD, and ALS Site Preparation Guide
6890 Series GC Site Preparation
2
Environmental conditions
Operating the instrument within the recommended ranges
optimizes instrument performance and lifetime. Performance
can be affected by sources of heat and cold from heating, air
conditioning systems, or drafts. See Table 21. The conditions
assume a noncondensing, noncorrosive atmosphere.
Table 21 Environmental conditions for operation and storage
Product
Conditions
Operating temp
range
Operating
humidity range
Maximum
altitude
Agilent 6890 Series
Standard oven ramp
20 to 27 °C
50 to 60%
4,615 m
Fast oven ramp (options 002 and
003)
20 to 27 °C
50 to 60%
4,615 m
Storage
5 to 40 °C
5 to 95%
Operation
15 to 35 °C*
(59 to 95 °F)
40 to 80%
Storage
–20 to 70 °C
(–4 to 158 °F)
0 to 95%
5975 Series
GC, MSD, and ALS Site Preparation Guide
4,615 m†
45
2
6890 Series GC Site Preparation
Gas Selection
Table 22 lists gases usable with Agilent GCs and capillary
columns. When used with capillary columns, GC detectors
require a separate makeup gas for optimum sensitivity.
Table 22 Gases usable with Agilent GCs and capillary columns
Detector type
Carrier
Preferred makeup
Alternate choice
Detector, anode
purge, or reference
Electron capture (ECD)
Hydrogen
Helium
Nitrogen*
Argon/Methane*
Argon/Methane
Argon/Methane
Nitrogen
Argon/Methane
Nitrogen
Nitrogen
Argon/Methane
Nitrogen
Anode purge must
be same as makeup
Flame ionization (FID)
Hydrogen
Helium
Nitrogen*
Nitrogen
Nitrogen
Nitrogen
Helium
Helium
Helium
Hydrogen and air for
detector
Flame photometric (FPD)
Hydrogen
Helium
Nitrogen*
Argon*
Nitrogen
Nitrogen
Nitrogen
Nitrogen
Nitrogen-Phosphorus (NPD)
Helium
Nitrogen*
Nitrogen
Nitrogen
Helium†
Helium
Hydrogen and air for
detector
Thermal conductivity (TCD)
Hydrogen
Helium
Nitrogen*
Must be same as
carrier and
reference
Must be same as
carrier and
reference
Reference must be
same as carrier and
makeup
Hydrogen and air for
detector
* Not generally suitable for GC/MS carrier gas.
† Depending on bead type, higher makeup gas flow rates (> 5 mL/min) may introduce cooling effects or shorten bead life.
Table 23 lists gas recommendations for packed column use.
In general, makeup gases are not required with packed
columns.
Table 23 Gases usable with Agilent GCs and packed columns
Detector type
Carrier gas
Comments
Detector, anode purge, or
reference
Electron capture (ECD)
Nitrogen
Maximum sensitivity
Nitrogen
Argon/methane
Maximum dynamic range
Argon/Methane
Nitrogen
Maximum sensitivity
Hydrogen and air for
detector.
Helium
Acceptable alternative
Flame ionization (FID)
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Table 23 Gases usable with Agilent GCs and packed columns (continued)
Detector type
Carrier gas
Flame photometric (FPD)
Hydrogen
Helium
Nitrogen
Argon
Nitrogen-Phosphorus (NPD)
Helium
Optimum performance
Nitrogen
Acceptable alternative
Helium
General use
Hydrogen
Nitrogen
Argon
Maximum sensitivity*
Hydrogen detection†
Maximum hydrogen
sensitivity1
Thermal conductivity (TCD)
Comments
Detector, anode purge, or
reference
Hydrogen and air for
detector.
Hydrogen and air for
detector.
Reference must be same
as carrier and makeup.
* Slightly greater sensitivity than helium. Incompatible with some compounds.
† For analysis of hydrogen or helium. Greatly reduces sensitivity for other compounds.
Agilent recommends that carrier and detector gases be
99.9995% pure. See Table 24. Air needs to be zero grade or
better. Agilent also recommends using high quality traps to
remove hydrocarbons, water, and oxygen.
Table 24 Carrier and reagent gas purity
Carrier and reagent gas
requirements
Purity
Notes
Helium (carrier)
99.9995%
Hydrocarbon free
Hydrogen (carrier)
99.9995%
SFC grade
Methane reagent gas*
99.999%
Research or SFC
grade
Isobutane reagent gas†
99.99%
Instrument grade
Ammonia reagent gas*
99.9995%
Research or SFC
grade
Carbon dioxide reagent gas†
99.995%
SFC grade
* Required reagent gas for installation and performance verification, CI MSDs only.
† Optional reagent gases, CI MSDs only
For installation checkout, Agilent requires the gas types
shown in Table 25.
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6890 Series GC Site Preparation
Table 25 Gases required for checkout
48
Detector
Gases required
FID
Carrier: helium
Makeup: nitrogen
Fuel: hydrogen
Aux gas: Air
TCD
Carrier and reference: helium
NPD
Carrier: helium
Makeup: nitrogen
Fuel: hydrogen
Aux gas: Air
uECD
Carrier: helium
Anode purge and makeup: nitrogen
FPD
Carrier: helium
Makeup: nitrogen
Fuel: hydrogen
Aux gas: Air
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Gas Supply
Supply instrument gases using tanks, an internal distribution
system, or gas generators. If used, tanks require two- stage
pressure regulators with packless, stainless steel diaphragms.
The instrument requires 1/8- inch Swagelok connections to
its gas supplies. See Figure 5. Plumb the gas supply
tubing/regulators so that one 1/8- inch Swagelok female
connector is available for each gas needed at the GC.
Swagelok nut and ferrules
Female Swagelok fitting on GC
Figure 5
Example Swagelok connector and hardware
Table 26 lists minimum and maximum delivery pressures for
inlets and detectors, measured at the bulkhead fittings on
the back of the instrument.
Table 26 Delivery pressures required at the GC/MS, in kPa (psig)
Detector type
FID
NPD
Inlet type
TCD
ECD
FPD
Hydrogen 240–690 240–690
(35–100) (35–100)
310–690
(45–100)
Air
380–690 380–690
(55–100) (55–100)
690–827
(100–120)
Makeup
380–690 380–690 380–690 380–690 380–690
(55–100) (55–100) (55–100) (55–100) (55–100)
Reference
Split/Splitless Split/Splitless On-column Purged PTV
150 psi
100 psi
packed
380–690
(55–100)
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6890 Series GC Site Preparation
Table 26 Delivery pressures required at the GC/MS, in kPa (psig) (continued)
Detector type
FID
NPD
Inlet type
TCD
ECD
FPD
Split/Splitless Split/Splitless On-column Purged PTV
150 psi
100 psi
packed
Carrier
(max)
1,172 (170)
827 (120)
827 (120)
Carrier
(min)
(20 psi) above pressure used in method
827
(120)
827
(120)
Conversions: 1 psi = 6.8947 kPa = 0.068947 Bar = 0.068 ATM
Notes:
• If you have not requested option 305, you must supply
pre- cleaned, 1/8- inch copper tubing and a variety of
1/8- inch Swagelok fittings to connect the GC to inlet and
detector gas supplies.
• Cryogenic cooling with Liquid N2 requires 1/4- inch
insulated copper tubing.
• Cryogenic cooling with Liquid CO2 requires 1/8- inch
heavy- walled, stainless steel tubing.
• If you purchased automated valving, the valve actuation
requires a separate pressurized, dry air supply at
380 kPa (55 psig). This air supply must end in a male
fitting compatible with a 1/4- inch id plastic tube at the
GC.
• Never use liquid thread sealer to connect fittings. Never
use chlorinated solvents to clean tubing or fittings.
Table 27 lists the limits on total gas flow into the 5975
Series MSD.
Table 27 5975 Series total gas flow limitations
50
Feature
G3170A
G3171A
G3172A
G3174A
High vacuum
pump
Diffusion
Standard
turbo
Performance Performance
turbo
turbo,
EI/PCI/NCI
Optimal gas flow
mL/min*
1.0
1.0
1.0 to 2.0
1.0 to 2.0
Maximum
recommended gas
flow, mL/min
1.5
2.0
4.0
4.0
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Table 27 5975 Series total gas flow limitations
Feature
G3170A
G3171A
G3172A
G3174A
Maximum gas
flow, mL/min†
2.0
2.4
6.5
4.0
Max column id
0.25 mm
(30 m)
0.32 mm
(30 m)
0.53 mm
(30 m)
0.53 mm
(30 m)
* Total gas flow into the GC/MS: column flow plus reagent gas flow (if applicable).
† Expect degradation of spectral performance and sensitivity.
Table 27 lists typical flows resulting from selected carrier
and reagent gas source pressures.
Table 28 5975 Series carrier and reagent gases
Carrier and reagent gas
requirements
Typical pressure
range
Typical flow
(mL/min)
Helium (required)
(column and split flow)
345 to 552 kPa
(50 to 80 psi)
20 to 50
Hydrogen (optional)*
(column and split flow)
345 to 552 kPa
(50 to 80 psi)
20 to 50
Methane reagent gas
(required for CI operation)
103 to 172 kPa
(15 to 25 psi)
1 to 2
Isobutane reagent gas (optional)
103 to 172 kPa
(15 to 25 psi)
1 to 2
Ammonia reagent gas (optional)
34 to 55 kPa
(5 to 8 psi)
1 to 2
Carbon dioxide reagent gas (optional) 103 to 138 kPa
(15 to 20 psi)
1 to 2
* Hydrogen gas can be used for the carrier gas but specifications are based on helium as the
carrier gas. Please observe all hydrogen gas safety cautions.
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6890 Series GC Site Preparation
Gas Plumbing
WA R N I N G
All compressed gas cylinders should be securely fastened to an
immovable structure or permanent wall. Compressed gases
should be stored and handled in accordance with the relevant
safety codes.
Gas cylinders should not be located in the path of heated oven
exhaust.
To avoid possible eye injury, wear eye protection when using
compressed gas.
Two-stage regulation
On/off valve
Shutoff valve
Main supply
on/off valve
Indicating oxygen trap
Main gas supply
Big universal trap
(combination trap for moisture,
hydrocarbons, and oxygen)
Trap size and shape will vary by manufacturer.
Figure 6
Recommended traps and plumbing configuration from a carrier gas cylinder
• Agilent strongly recommends two- stage regulators to
eliminate pressure surges. High- quality, stainless- steel
diaphragm- type regulators are especially recommended.
• On/off valves mounted on the outlet fitting of the
two- stage regulator are not essential but are very useful.
Be sure the valves have stainless- steel, packless
diaphragms.
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• FID, FPD, and NPD detectors require a dedicated air
supply. Operation may be affected by pressure pulses in
air lines shared with other devices.
• Flow- and pressure- controlling devices require at least
10 psi (138 kPa) pressure differential across them to
operate properly. Set source pressures and capacities high
enough to ensure this.
• Situate auxiliary pressure regulators close to the GC inlet
fittings. This ensures that the supply pressure is
measured at the instrument (rather than at the source);
pressure at the source may be different if the gas supply
lines are long or narrow.
Supply tubing for carrier and detector gases
Use only preconditioned copper tubing (part number
5180- 4196) to supply gases to the instrument. Do not use
ordinary copper tubing—it contains oils and contaminants.
CAUTION
Do not use methylene chloride or other halogenated solvent to clean
tubing that will be used with an electron capture detector. They will
cause elevated baselines and detector noise until they are
completely flushed out of the system.
CAUTION
Do not use plastic tubing for suppling detector and inlet gases to the
GC. It is permeable to oxygen and other contaminants that can
damage columns and detectors.
Plastic tubing can melt if near hot exhaust or components.
The tubing diameter depends on the distance between the
supply gas and the GC and the total flow rate for the
particular gas. Tubing of 1/8- in diameter is adequate when
the supply line is less than 15 feet (4.6 m) long.
Use larger diameter tubing (1/4- in) for distances greater
then 15 feet (4.6 m) or when multiple instruments are
connected to the same source. Use larger diameter tubing if
high demand is anticipated (for example, air for an FID).
Be generous when cutting tubing for local supply lines—a coil
of flexible tubing between the supply and the instrument lets
you move the GC without moving the gas supply. Take this
extra length into account when choosing the tubing diameter.
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6890 Series GC Site Preparation
Two-stage pressure regulators
To eliminate pressure surges, use a two- stage regulator with
each gas tank. Stainless steel, diaphragm- type regulators are
recommended.
2 stage regulator
Adapter to 1/8-inch female
Swagelok fitting
The type of regulator you use depends on the gas type and
supplier. The Agilent catalog for consumables and supplies
contains information to help you identify the correct
regulator, as determined by the Compressed Gas Association
(CGA). Agilent Technologies offers pressure- regulator kits
that contain all the materials needed to install regulators
properly.
Pressure regulator-gas supply tubing connections
Use Teflon® tape to seal the pipe- thread connection between
the pressure regulator outlet and the fitting to which you
connect the gas tubing. Instrument grade Teflon tape (part
number 0460- 1266), from which volatiles have been removed,
is recommended for all fittings. Do not use pipe dope to seal
the threads; it contains volatile materials that will
contaminate the tubing.
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Traps
Using chromatographic- grade gases ensures that the gas in
your system is pure. However, for optimum sensitivity, install
high- quality traps to remove traces of water or other
contaminants. After installing a trap, check the gas supply
lines for leaks.
Table 29 lists the recommended traps. See the Agilent online
store for the complete listing of traps and trap accessories.
As shown in Figure 6, install the indicating trap last so that
it warns when the combination begins to fail.
Table 29 Recommended traps
Description
Part number
Big universal trap. Removes oxygen, moisture, hydrocarbons,
carbon dioxide and carbon monoxide from helium gas
streams.
RMS
Indicating oxygen trap (for carrier and ECD gases).
IOT-2-HP
Moisture in carrier gas damages columns. Agilent
recommends installing a moisture trap after the source
regulator and before any other traps.
A hydrocarbon trap removes organics from gases. Place it
after a molecular sieve trap and before an oxygen trap, if
they are present.
An oxygen trap removes 99% of the oxygen from a gas plus
traces of water. Place it last in a series of traps. Because
trace amounts of oxygen can damage columns and degrade
uECD performance, use an oxygen trap with carrier and
uECD gases. Do not use it with FID, FPD, or NPD fuel gases.
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6890 Series GC Site Preparation
Cryogenic Cooling Requirements
Cryogenic cooling allows you to cool the oven below ambient
temperature. A solenoid valve introduces liquid coolant,
either carbon dioxide (CO2) or nitrogen (N2), to cool the
oven to the desired temperature.
CO2 and N2 require different hardware on the GC.
Using carbon dioxide
WA R N I N G
Pressurized liquid CO2 is a hazardous material. Take precautions
to protect personnel from high pressures and low temperatures.
CO2 in high concentrations is toxic to humans; take precautions to
prevent hazardous concentrations. Consult your local supplier for
recommended safety precautions and delivery system design.
CAUTION
Liquid CO2 should not be used as a coolant for temperatures below
–40°C because the expanding liquid may form solid CO2—dry
ice—in the GC oven. If dry ice builds up in the oven, it can seriously
damage the GC.
Liquid CO2 is available in high- pressure tanks containing
liquid. The CO2 should be free of particulate material, oil,
and other contaminants. These contaminants could clog the
expansion orifice or affect the proper operation of the GC.
WA R N I N G
Do not use copper tubing or thin-wall stainless steel tubing with
liquid CO2. Both harden at stress points and may explode.
Additional requirements for the liquid CO2 system include:
• The tank must have an internal dip tube or eductor tube
to deliver liquid CO2 instead of gas (see the figure below).
• Set the liquid CO2 pressure to the GC at 4830 to
6900 kPa (700 to 1,000 psi) at a temperature of 25 °C.
• Use 1/8- inch diameter heavy- wall stainless steel tubing
for supply tubing. The tubing should be between 1.5 and
15 m (5 and 50 feet) long.
• Coil and fasten the ends of the tubing to prevent it from
“whipping” if it breaks.
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• Do not install a pressure regulator on the CO2 tank, as
vaporization and cooling would occur in the regulator
instead of the oven.
• Do not use a padded tank (one to which another gas is
added to increase the pressure).
Dip tube
Correct configuration
Incorrect configuration
Using liquid nitrogen
WA R N I N G
Liquid nitrogen is a hazard because of the extremely low
temperatures and high pressures that may occur in improperly
designed supply systems.
Liquid nitrogen can present an asphyxiant hazard if vaporizing
nitrogen displaces oxygen in the air. Consult local suppliers for
safety precautions and design information.
Liquid nitrogen is supplied in insulated Dewar tanks. The
correct type for cooling purposes is a low- pressure Dewar
equipped with a dip tube—to deliver liquid rather than
gas—and a safety relief valve to prevent pressure build- up.
The relief valve is set by the supplier at 138 to 172 kPa (20
to 25 psi).
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6890 Series GC Site Preparation
WA R N I N G
If liquid nitrogen is trapped between a closed tank valve and the
cryo valve on the GC, tremendous pressure will develop and may
cause an explosion. For this reason, keep the delivery valve on the
tank open so that the entire system is protected by the pressure
relief valve.
To move or replace a tank, close the delivery valve and carefully
disconnect the line at either end to let residual nitrogen escape.
Additional requirements for the liquid N2 system include:
• Set the liquid N2 pressure to the GC at 138 to 207 kPa
(20 to 30 psi).
• Make sure the supply tubing for liquid N2 is insulated.
Foam tubing used for refrigeration and air- conditioning
lines is suitable for insulation. Since pressures are low,
insulated copper tubing is adequate.
• Situate the liquid nitrogen tank close (within 1.5 to 3 m,
or 5 to 10 feet) to the GC to ensure that liquid, not gas,
is supplied to the inlet.
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Maximum Length of Cables
The distance between system modules may be limited by
some of the cabling and the vent or vacuum hoses.
• A GC/MS system foreline pump can be located on the
laboratory bench or on the floor. It must be close to the
MSD because it is connected by a 200- cm (79- inch) hose.
The hose is stiff and cannot be bent sharply. The length
of the vacuum hose is 130 cm (4.24 feet) from the high
vacuum pump to the foreline pump, while the length of
the foreline pump power cord is 2 meters (6.6 feet).
• The length of the Agilent- supplied remote cable is 2
meters (6.6 feet).
• The length of the Agilent- supplied LAN cable is 10 meters
(32.8 feet).
• The lengths of the power cords are 2 meters (6.6 feet).
• The length of a G1888 Headspace Sampler transfer line is
about 80 cm (31.5 inches).
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Site LAN Network
If you intend to connect your system to your site’s LAN
network, you must have an additional shielded twisted pair
network cable.
60
NOTE
Agilent Technologies is not responsible for connecting to or establishing
communication with your site LAN network. The representative will test
the system’s ability to communicate on a mini-hub or LAN switch only.
NOTE
The IP addresses assigned to the instrument(s) must be fixed
(permanently assigned) addresses. If you intend to connect your system to
your site’s network, each piece of equipment must have a unique, fixed
(static) IP address assigned to it.
GC, MSD, and ALS Site Preparation Guide
6890 Series GC Site Preparation
2
Basic Tools
The GC/MS comes with a few basic tools and consumables
depending on the specific inlet and detector that you
ordered. Below is a general list of what comes with the
instrument.
Table 30 Basic tools
Tool or consumable
Used for
6890N GC
T10 and T20 Torx wrenches
Removing tray. Removing covers to
access gas control modules, traps, and
pneumatic connections.
1/4-inch nut driver
FID jet replacement.
FID flow measuring insert
FID troubleshooting.
Column cutter, ceramic or diamond
Column installation.
1/8-inch Tee, Swagelok, brass
Connect gas supplies.
1/8-inch nuts & ferrules, Swagelok,
brass
Connect gas supplies.
Inlet septa appropriate for type
Inlet seal.
Inlet insert or liner
Contains sample during vaporization in
inlet.
GC/MS
1.5-mm and 2.0-mm hex driver
Source maintenance (disassembly).
Tool bag
Holding GC and MS tools.
Q-Tips
Cleaning source parts.
Cloths
Keeping surfaces and parts clean.
Gloves
Reducing contamination on GC and
MSD parts.
Funnel
Changing oil.
Hex key, 5 mm
Removing oil plug and screws in safety
shield handle.
Table 31 lists other useful tools not included with the GC.
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Table 31 Useful tools not included with GC
Tool
Used for
Custom Tee, G3430-60009
Connecting the same gas to front and
back EPC module.
ECD/TCD Detector plug, 5060-9055
Inlet pressure decay test
1/8-inch Ball Valve, 0100-2144
Inlet pressure decay test (one per
inlet)
Digital flow meter, Flow tracker 1000
Verifying flows, checking for leaks and
plugs
Electronic gas leak detector
Locating gas leaks; safety checks
when using Hydrogen
Column cutters
Cutting columns
T-10 and T-20 Torx drivers
Removing tray; removing covers to
access EPC modules, traps, and
possible leaks
1/8-inch tubing cutter (wire cutter
type)
Cutting gas supply tubing
Assorted wrenches: 1/4-inch,
3/8-inch, 7/16-inch, 9/16-inch
Gas supply and plumbing fittings
Electronic vial crimper
Assuring consistently air-tight vial
closure, regardless of who does the
crimping
Table 32 lists consumables that you may wish to order. First
time GC users should consider purchasing the following
supplies in order to maintain their system and prevent
interruptions in the use of their system. Please refer to the
latest Agilent consumables and supplies catalog and to the
Agilent web site at www.aglent.com/chem for part numbers
and recommended maintenance periods.
Table 32 Additional consumables
62
Consumable category
Consumable
Inlet supplies
Septa, o-rings, liners, adapter, and
seals
Inlet preventative maintenance (PM)
kits
Kits with individual parts needed to
maintain an inlet
Pneumatic supplies
Gases, traps, o-rings, seals, Swagelok
fittings
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6890 Series GC Site Preparation
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Table 32 Additional consumables (continued)
Consumable category
Consumable
Column supplies
Nuts, ferrules, adapters, guard
columns, retention gaps
Detector supplies
Jets, beads, liners, adapters, cleaning
kits
Application supplies
Standards, columns, syringes
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GC, MSD, and ALS Site Preparation Guide
GC, GC/MS, and ALS
Site Preparation Guide
6850 Series GC Site Preparation
Customer Responsibilities 66
Dimensions and weight 67
Power Consumption 69
Heat Dissipation 72
Exhaust Venting 73
Environmental conditions 74
Gas Selection 75
Gas Supply 78
Gas Plumbing 81
Cryogenic Cooling Requirements 85
Maximum Length of Cables 87
Site LAN Network 88
Basic Tools 89
This section outlines the space and resource requirements
for GC, GC/MS, and automatic liquid sampler (ALS)
installation. For a successful and timely installation of the
instrument, the site must meet these requirements before
beginning installation. Necessary supplies (gases, tubing,
operating supplies, consumables, and other usage- dependent
items such as columns, vials, syringes, and solvents) must
also be available. Note that performance verification requires
the use of helium carrier gas, and for 5975 MSD systems
using chemical ionization, methane reagent gas. Refer to the
Agilent Web site at www.agilent.com/chem for the most
up- to- date listing of GC, GC/MS, and ALS supplies and
consumables.
Agilent Technologies
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6850 Series GC Site Preparation
Customer Responsibilities
The specifications in this manual outline the necessary
space, electrical outlets, gases, tubing, operating supplies,
consumables, and other usage- dependent items such as
columns, vials, syringes, and solvents required for the
successful installation of instruments and systems.
If Agilent is delivering installation and familiarization
services, users of the instrument should be present
throughout these services; otherwise, they will miss
important operational, maintenance, and safety information.
If Agilent is delivering installation and familiarization
services, delays due to inadequate site preparation could
cause loss of instrument use during the warranty period. In
extreme cases, Agilent Technologies may ask to be
reimbursed for the additional time required to complete the
installation. Agilent Technologies provides service during the
warranty period and under maintenance agreements only if
the specified site requirements are met.
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Dimensions and weight
Select the laboratory bench space before the system arrives.
Pay special attention to the total height requirements. Avoid
bench space with overhanging shelves. See Table 33.
The instrument needs space for proper convection of heat
and ventilation. Allow at least 25 cm (10 in) clearance
between back of the instrument and wall to dissipate hot air.
Table 33 Required height, width, depth, and weight
Product
Height
Width
Depth
Weight
6850 Series GCs
51 cm (20 in)
29 cm (12 in)
34 cm (14 in) CO2
37 cm (15 in) 6850 ALS
57 cm (23 in)
< 23 kg (51 lb)
• Diffusion pump
41 cm (16 in)
30 cm (12 in)
54 cm (22 in)
39 kg (85 lb)
• Standard turbo pump
41 cm (16 in)
30 cm (12 in)
54 cm (22 in)
39 kg (85 lb)
• Performance turbo pump
41 cm (16 in)
30 cm (12 in)
54 cm (22 in)
41 kg (90 lb)
• Performance CI/EI turbo pump
41 cm (16 in)
30 cm (12 in)
54 cm (22 in)
46 kg (100 lb)
Foreline pump
Standard
Oil-free
21 cm (8 in)
19 cm (7.5 in)
13 cm (5 in)
32 cm (13 in)
31 cm (12 in)
28 cm (11 in)
11 kg (23.1 lb)
16 kg (35.2 lb)
G1888 Headspace sampler
56 cm (22 in)
46 cm (18.1 in)
64 cm (25 in)
46.3 kg (102 lb)
5975 Series MSDs
Additional space requirements
• GC/MS operational and maintenance access
Requires 30 cm (1 ft) to its left
• Typical laser printer
Requires 41 cm (16 in)
• GC operational oven access
Requires ≥ 30 cm (12 in) open space above GC
• GC with 7693A ALS injector
Requires 50 cm (19.5 in) above the GC
3.9 kg (8,6 lb)
each
• GC with 7683B ALS injector
Requires 42 cm (16.5 in) above the GC
3.1 kg (7 lb) each
• GC with CTC PAL Autosampler
Requires 66 cm (26 in) above the GC and 4 to
20 cm (1.5 to 8 in) to the left or right,
depending on configuration
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6850 Series GC Site Preparation
Foreline
pump
Figure 7
GC/MS
GC
Computer with monitor
Printer
Top view of typical installation (6850 GC/MS system with ALS)
A simple 6850 system that includes a GC, an ALS injector,
and a computer would require about 138 cm (4 ft 6 in) of
bench space. Allowing for operational access and a printer, a
total of 229 cm (7.5 ft) of bench space should be available
for a full GC/MS system. Some repairs to the MSD or to the
GC will also require access to the back of the instrument(s).
Note that the length of the GC/MS vacuum hose is 130 cm
(4 ft 3 in) from the high vacuum pump to the foreline pump,
and the length of the foreline pump power cord is 2 m (6 ft
6 in).
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Power Consumption
Table 34 lists site power requirements.
• The number and type of electrical outlets depend on the
size and complexity of the system.
• Power consumption and requirements depend on the
country to which the unit ships. Find the instrument type
and your line voltage to find your instrument’s power
requirements.
• The electrical outlet for the unit should have a dedicated
ground. Voltage between ground and neutral should be
less than 2.5 VAC.
• The voltage requirements for your instrument are printed
near the power cord attachment.
Table 34 Power requirements
Product
6850
Standard
oven
Fast oven
5975 Series MSD
Line voltage (VAC)
Frequency
(Hz)
Current rating Maximum
(amps)
continuous power
consumption (VA)
Outlets
required
Japan: 100 single
phase (–10% / +10%)*
48–63
15
1440
1
Americas: 120 single
phase (–10% / +10%)*
48–63
12
1440
1
230 single/split phase
(–10% / +10%)*
48–63
9
2000
1
120 single phase
(–10% / +10%)*
48–63
20
2400
1
220/230/240
single/split phase
(–10% / +10%)*
48–63
11
2400
1
200/208 single/split
phase (–10% / +10%)*
48–63
12
2400
1
120 (–10% / +5%)
50/60 ± 5%
8
1100 (400 for foreline
pump only)
1
220–240 (–10% / +5%) 50/60 ± 5%
8
1100 (400 for foreline
pump only)
1
200 (–10% / +5%)
8
1100 (400 for foreline
pump only)
1
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50/60 ± 5%
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6850 Series GC Site Preparation
Table 34 Power requirements (continued)
Product
Line voltage (VAC)
Frequency
(Hz)
Current rating Maximum
(amps)
continuous power
consumption (VA)
Outlets
required
Data system PC system
(monitor, CPU, printer)
100 (–10% / +5%)
50/60 ± 5%
15
1000
3–5
120 (–10% / +5%)
50/60 ± 5%
15
1000
3–5
200–240 (–10% / +5%) 50/60 ± 5%
15
1000
3–5
* Requires an isolated ground and dedicated outlet.
WA R N I N G
Do not use extension cords with Agilent instruments. Extension cords
normally are not rated to carry enough power and can be a safety hazard.
Although your GC should arrive ready for operation in your
country, compare its voltage requirements with those listed
in Table 34. If the voltage option you ordered is not suitable
for your installation, contact Agilent Technologies.
CAUTION
A proper earth ground is required for GC operations. Any
interruption of the grounding conductor or disconnection of the
power cord could cause a shock that could result in personal injury.
To protect users, the metal instrument panels and cabinet
are grounded through the three- conductor power line cord
in accordance with International Electrotechnical
Commission (IEC) requirements.
The three- conductor power line cord, when plugged into a
properly grounded receptacle, grounds the instrument and
minimizes shock hazard. A properly grounded receptacle is
one that is connected to a suitable earth ground. Be sure to
verify proper receptacle grounding.
Connect the GC to a dedicated receptacle. Use of a
dedicated receptacle reduces interference.
Canadian installation
When installing a GC in Canada, make sure your GC’s power
supply circuit meets the following additional requirements:
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• The circuit breaker for the branch circuit, which is
dedicated to the instrument, is rated for continuous
operation.
• The service box branch circuit is marked as a “Dedicated
Circuit.”
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Heat Dissipation
Use Table 35 to estimate the additional BTUs of heat
dissipated from this equipment. Maximums represent the
heat given off when heated zones are set for maximum
temperatures.
Table 35 Heat dissipation
Oven type
Standard oven ramp
Fast oven ramp (option 002)
Agilent 6850 Series
< 4800 BTU/hour maximum
< 4800 BTU/hour maximum
Agilent 5975 Series
3000 BTU/hour including GC/MS interface
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Exhaust Venting
Hot air (up to 350 °C) from the oven exits through a vent in
the rear. Allow at least 25 cm (10 in) clearance behind the
instrument to dissipate this air.
WA R N I N 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.
An optional oven exhaust deflector (G2630- 60710) is
available and may improve oven cooling by deflecting the
exhaust air up and away from the instrument.
During normal operation of the GC with many detectors and
inlets, some of the carrier gas and sample vents outside the
instrument through the split vent, septum purge vent, and
detector exhaust. If any sample components are toxic or
noxious, or if hydrogen is used as the carrier gas, 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, attach
a chemical trap to the vent(s).
Vent the GC/MS system externally to the building via an
ambient- pressure vent system, within 460 cm (15 ft) of both
the GC split vent and GC/MS foreline pump, or vent to a
fume hood. Note that an exhaust vent system is not part of
the building environmental control system, which
recirculates air. Exhaust venting must comply with all local
environmental and safety codes. Contact your Environmental
Health & Safety (EHS) specialist.
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Environmental conditions
Operating the instrument within the recommended ranges
optimizes instrument performance and lifetime. Performance
can be affected by sources of heat and cold from heating, air
conditioning systems, or drafts. See Table 36. The conditions
assume a noncondensing, noncorrosive atmosphere.
Table 36 Environmental conditions for operation and storage
Product
Conditions
Operating temp
range
Operating
humidity range
Maximum
altitude
6850 Series
Standard oven ramp
15 to 35 °C
5 to 95%
4,615 m
Fast oven ramp (options 002 and
003)
15 to 35 °C
5 to 95%
4,615 m
Storage
-5 to 40 °C
5 to 95%
Operation
15 to 35 °C*
(59 to 95 °F)
40 to 80%
Storage
–20 to 70 °C
(–4 to 158 °F)
0 to 95%
5975 Series
74
4,615 m†
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Gas Selection
Table 37 lists gases usable with Agilent GCs and capillary
columns. When used with capillary columns, GC detectors
require a separate makeup gas for optimum sensitivity.
Table 37 Gases usable with Agilent GCs and capillary columns
Detector type
Carrier
Preferred makeup
Alternate choice
Detector, anode
purge, or reference
Electron capture (ECD)
Hydrogen
Helium
Nitrogen*
Argon/Methane*
Argon/Methane
Argon/Methane
Nitrogen
Argon/Methane
Nitrogen
Nitrogen
Argon/Methane
Nitrogen
Anode purge must
be same as makeup
Flame ionization (FID)
Hydrogen
Helium
Nitrogen*
Nitrogen
Nitrogen
Nitrogen
Helium
Helium
Helium
Hydrogen and air for
detector
Flame photometric (FPD)
Hydrogen
Helium
Nitrogen*
Argon*
Nitrogen
Nitrogen
Nitrogen
Nitrogen
Thermal conductivity (TCD)
Hydrogen
Helium
Nitrogen*
Must be same as
carrier and
reference
Hydrogen and air for
detector
Must be same as
carrier and
reference
Reference must be
same as carrier and
makeup
* Not generally suitable for GC/MS carrier gas.
Table 38 lists gas recommendations for packed column use.
In general, makeup gases are not required with packed
columns.
Table 38 Gases usable with Agilent GCs and packed columns
Detector type
Carrier gas
Comments
Detector, anode purge, or
reference
Electron capture (ECD)
Nitrogen
Maximum sensitivity
Nitrogen
Argon/methane
Maximum dynamic range
Argon/Methane
Nitrogen
Maximum sensitivity
Hydrogen and air for
detector.
Helium
Acceptable alternative
Flame ionization (FID)
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Table 38 Gases usable with Agilent GCs and packed columns (continued)
Detector type
Carrier gas
Comments
Detector, anode purge, or
reference
Flame photometric (FPD)
Hydrogen
Helium
Nitrogen
Argon
Thermal conductivity (TCD)
Helium
General use
Hydrogen
Nitrogen
Argon
Maximum sensitivity*
Hydrogen detection†
Maximum hydrogen
sensitivity1
Hydrogen and air for
detector.
Reference must be same
as carrier and makeup.
* Slightly greater sensitivity than helium. Incompatible with some compounds.
† For analysis of hydrogen or helium. Greatly reduces sensitivity for other compounds.
Agilent recommends that carrier and detector gases be
99.9995% pure. See Table 39. Air needs to be zero grade or
better. Agilent also recommends using high quality traps to
remove hydrocarbons, water, and oxygen.
Table 39 Carrier and reagent gas purity
Carrier and reagent gas
requirements
Purity
Notes
Helium (carrier)
99.9995%
Hydrocarbon free
Hydrogen (carrier)
99.9995%
SFC grade
Methane reagent gas*
99.999%
Research or SFC
grade
Isobutane reagent gas†
99.99%
Instrument grade
Ammonia reagent gas*
99.9995%
Research or SFC
grade
Carbon dioxide reagent gas†
99.995%
SFC grade
* Required reagent gas for installation and performance verification, CI MSDs only.
† Optional reagent gases, CI MSDs only
For installation checkout, Agilent requires the gas types
shown in Table 40.
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Table 40 Gases required for checkout
Detector
Gases required
FID
Carrier: helium
Makeup: nitrogen
Fuel: hydrogen
Aux gas: Air
TCD
Carrier and reference: helium
uECD
Carrier: helium
Anode purge and makeup: nitrogen
FPD
Carrier: helium
Makeup: nitrogen
Fuel: hydrogen
Aux gas: Air
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Gas Supply
Supply instrument gases using tanks, an internal distribution
system, or gas generators. If used, tanks require two- stage
pressure regulators with packless, stainless steel diaphragms.
The instrument requires 1/8- inch Swagelok connections to
its gas supplies. See Figure 8. Plumb the gas supply
tubing/regulators so that one 1/8- inch Swagelok female
connector is available for each gas needed at the GC.
Swagelok nut and ferrules
Female Swagelok fitting on GC
Figure 8
Example Swagelok connector and hardware
Table 41 lists minimum and maximum delivery pressures for
inlets and detectors, measured at the bulkhead fittings on
the back of the instrument.
Table 41 Delivery pressures required at the GC/MS, in kPa (psig)
Detector type
FID
TCD
Inlet type
ECD
FPD
Hydrogen
240–690
(35–100)
310–690
(45–100)
Air
380–690
(55–100)
690–827
(100–120)
Makeup
380–690 380–690
(55–100) (55–100)
Reference
78
380–690
(55–100)
Split/Splitless
150 psi
Split/Splitless On-column Purged
100 psi
packed
PTV
380–690
(55–100)
380–690
(55–100)
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Table 41 Delivery pressures required at the GC/MS, in kPa (psig) (continued)
Detector type
FID
TCD
Inlet type
ECD
FPD
Split/Splitless
150 psi
Split/Splitless On-column Purged
100 psi
packed
Carrier
(max)
1,172 (170)
827 (120)
Carrier (min)
(20 psi) above pressure used in method
827 (120)
PTV
827 (120) 827
(120)
Conversions: 1 psi = 6.8947 kPa = 0.068947 Bar = 0.068 ATM
Notes:
• If you have not requested option 305, you must supply
pre- cleaned, 1/8- inch copper tubing and a variety of
1/8- inch Swagelok fittings to connect the GC to inlet and
detector gas supplies.
• Cryogenic cooling with Liquid CO2 requires 1/8- inch
heavy- walled, stainless steel tubing.
• If you purchased automated valving, the valve actuation
requires a separate pressurized, dry air supply at
380 kPa (55 psig). This air supply must end in a male
fitting compatible with a 1/4- inch id plastic tube at the
GC.
• Never use liquid thread sealer to connect fittings. Never
use chlorinated solvents to clean tubing or fittings.
Table 42 lists the limits on total gas flow into the 5975
Series MSD.
Table 42 5975 Series total gas flow limitations
Feature
G3170A
G3171A
G3172A
High vacuum
pump
Diffusion
Standard
turbo
Performance Performance
turbo
turbo,
EI/PCI/NCI
Optimal gas flow
mL/min*
1.0
1.0
1.0 to 2.0
1.0 to 2.0
Maximum
recommended gas
flow, mL/min
1.5
2.0
4.0
4.0
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Table 42 5975 Series total gas flow limitations
Feature
G3170A
G3171A
G3172A
G3174A
Maximum gas
flow, mL/min†
2.0
2.4
6.5
4.0
Max column id
0.25 mm
(30 m)
0.32 mm
(30 m)
0.53 mm
(30 m)
0.53 mm
(30 m)
* Total gas flow into the GC/MS: column flow plus reagent gas flow (if applicable).
† Expect degradation of spectral performance and sensitivity.
Table 42 lists typical flows resulting from selected carrier
and reagent gas source pressures.
Table 43 5975 Series carrier and reagent gases
Carrier and reagent gas
requirements
Typical pressure
range
Typical flow
(mL/min)
Helium (required)
(column and split flow)
345 to 552 kPa
(50 to 80 psi)
20 to 50
Hydrogen (optional)*
(column and split flow)
345 to 552 kPa
(50 to 80 psi)
20 to 50
Methane reagent gas
(required for CI operation)
103 to 172 kPa
(15 to 25 psi)
1 to 2
Isobutane reagent gas (optional)
103 to 172 kPa
(15 to 25 psi)
1 to 2
Ammonia reagent gas (optional)
34 to 55 kPa
(5 to 8 psi)
1 to 2
Carbon dioxide reagent gas (optional) 103 to 138 kPa
(15 to 20 psi)
1 to 2
* Hydrogen gas can be used for the carrier gas but specifications are based on helium as the
carrier gas. Please observe all hydrogen gas safety cautions.
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Gas Plumbing
WA R N I N G
All compressed gas cylinders should be securely fastened to an
immovable structure or permanent wall. Compressed gases
should be stored and handled in accordance with the relevant
safety codes.
Gas cylinders should not be located in the path of heated oven
exhaust.
To avoid possible eye injury, wear eye protection when using
compressed gas.
Two-stage regulation
On/off valve
Shutoff valve
Main supply
on/off valve
Indicating oxygen trap
Main gas supply
Big universal trap
(combination trap for moisture,
hydrocarbons, and oxygen)
Trap size and shape will vary by manufacturer.
Figure 9
Recommended traps and plumbing configuration from a carrier gas cylinder
• Agilent strongly recommends two- stage regulators to
eliminate pressure surges. High- quality, stainless- steel
diaphragm- type regulators are especially recommended.
• On/off valves mounted on the outlet fitting of the
two- stage regulator are not essential but are very useful.
Be sure the valves have stainless- steel, packless
diaphragms.
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• FID and FPD detectors require a dedicated air supply.
Operation may be affected by pressure pulses in air lines
shared with other devices.
• Flow- and pressure- controlling devices require at least
10 psi (138 kPa) pressure differential across them to
operate properly. Set source pressures and capacities high
enough to ensure this.
• Situate auxiliary pressure regulators close to the GC inlet
fittings. This ensures that the supply pressure is
measured at the instrument (rather than at the source);
pressure at the source may be different if the gas supply
lines are long or narrow.
Supply tubing for carrier and detector gases
Use only preconditioned copper tubing (part number
5180- 4196) to supply gases to the instrument. Do not use
ordinary copper tubing—it contains oils and contaminants.
CAUTION
Do not use methylene chloride or other halogenated solvent to clean
tubing that will be used with an electron capture detector. They will
cause elevated baselines and detector noise until they are
completely flushed out of the system.
CAUTION
Do not use plastic tubing for suppling detector and inlet gases to the
GC. It is permeable to oxygen and other contaminants that can
damage columns and detectors.
Plastic tubing can melt if near hot exhaust or components.
The tubing diameter depends on the distance between the
supply gas and the GC and the total flow rate for the
particular gas. Tubing of 1/8- in diameter is adequate when
the supply line is less than 15 feet (4.6 m) long.
Use larger diameter tubing (1/4- in) for distances greater
then 15 feet (4.6 m) or when multiple instruments are
connected to the same source. Use larger diameter tubing if
high demand is anticipated (for example, air for an FID).
Be generous when cutting tubing for local supply lines—a coil
of flexible tubing between the supply and the instrument lets
you move the GC without moving the gas supply. Take this
extra length into account when choosing the tubing diameter.
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Two-stage pressure regulators
To eliminate pressure surges, use a two- stage regulator with
each gas tank. Stainless steel, diaphragm- type regulators are
recommended.
2 stage regulator
Adapter to 1/8-inch female
Swagelok fitting
The type of regulator you use depends on the gas type and
supplier. The Agilent catalog for consumables and supplies
contains information to help you identify the correct
regulator, as determined by the Compressed Gas Association
(CGA). Agilent Technologies offers pressure- regulator kits
that contain all the materials needed to install regulators
properly.
Pressure regulator-gas supply tubing connections
Use Teflon® tape to seal the pipe- thread connection between
the pressure regulator outlet and the fitting to which you
connect the gas tubing. Instrument grade Teflon tape (part
number 0460- 1266), from which volatiles have been removed,
is recommended for all fittings. Do not use pipe dope to seal
the threads; it contains volatile materials that will
contaminate the tubing.
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Traps
Using chromatographic- grade gases ensures that the gas in
your system is pure. However, for optimum sensitivity, install
high- quality traps to remove traces of water or other
contaminants. After installing a trap, check the gas supply
lines for leaks.
Table 44 lists the recommended traps. See the Agilent online
store for the complete listing of traps and trap accessories.
As shown in Figure 9, install the indicating trap last so that
it warns when the combination begins to fail.
Table 44 Recommended traps
Description
Part number
Big universal trap. Removes oxygen, moisture, hydrocarbons,
carbon dioxide and carbon monoxide from helium gas
streams.
RMS
Indicating oxygen trap (for carrier and ECD gases).
IOT-2-HP
Moisture in carrier gas damages columns. Agilent
recommends installing a moisture trap after the source
regulator and before any other traps.
A hydrocarbon trap removes organics from gases. Place it
after a molecular sieve trap and before an oxygen trap, if
they are present.
An oxygen trap removes 99% of the oxygen from a gas plus
traces of water. Place it last in a series of traps. Because
trace amounts of oxygen can damage columns and degrade
uECD performance, use an oxygen trap with carrier and
uECD gases. Do not use it with FID or FPD fuel gases.
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Cryogenic Cooling Requirements
Cryogenic cooling allows you to cool the oven below ambient
temperature. A solenoid valve introduces liquid coolant to
cool the oven to the desired temperature.
Using carbon dioxide
WA R N I N G
Pressurized liquid CO2 is a hazardous material. Take precautions
to protect personnel from high pressures and low temperatures.
CO2 in high concentrations is toxic to humans; take precautions to
prevent hazardous concentrations. Consult your local supplier for
recommended safety precautions and delivery system design.
CAUTION
Liquid CO2 should not be used as a coolant for temperatures below
–40°C because the expanding liquid may form solid CO2—dry
ice—in the GC oven. If dry ice builds up in the oven, it can seriously
damage the GC.
Liquid CO2 is available in high- pressure tanks containing
liquid. The CO2 should be free of particulate material, oil,
and other contaminants. These contaminants could clog the
expansion orifice or affect the proper operation of the GC.
WA R N I N G
Do not use copper tubing or thin-wall stainless steel tubing with
liquid CO2. Both harden at stress points and may explode.
Additional requirements for the liquid CO2 system include:
• The tank must have an internal dip tube or eductor tube
to deliver liquid CO2 instead of gas (see the figure below).
• Set the liquid CO2 pressure to the GC at 4830 to
6900 kPa (700 to 1,000 psi) at a temperature of 25 °C.
• Use 1/8- inch diameter heavy- wall stainless steel tubing
for supply tubing. The tubing should be between 1.5 and
15 m (5 and 50 feet) long.
• Coil and fasten the ends of the tubing to prevent it from
“whipping” if it breaks.
• Do not install a pressure regulator on the CO2 tank, as
vaporization and cooling would occur in the regulator
instead of the oven.
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• Do not use a padded tank (one to which another gas is
added to increase the pressure).
Dip tube
Correct configuration
86
Incorrect configuration
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3
Maximum Length of Cables
The distance between system modules may be limited by
some of the cabling and the vent or vacuum hoses.
• A GC/MS system foreline pump can be located on the
laboratory bench or on the floor. It must be close to the
MSD because it is connected by a 200- cm (79- inch) hose.
The hose is stiff and cannot be bent sharply. The length
of the vacuum hose is 130 cm (4.24 feet) from the high
vacuum pump to the foreline pump, while the length of
the foreline pump power cord is 2 meters (6.6 feet).
• The length of the Agilent- supplied remote cable is 2
meters (6.6 feet).
• The length of the Agilent- supplied LAN cable is 10 meters
(32.8 feet).
• The lengths of the power cords are 2 meters (6.6 feet).
• The length of a G1888 Headspace Sampler transfer line is
about 80 cm (31.5 inches).
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Site LAN Network
If you intend to connect your system to your site’s LAN
network, you must have an additional shielded twisted pair
network cable.
88
NOTE
Agilent Technologies is not responsible for connecting to or establishing
communication with your site LAN network. The representative will test
the system’s ability to communicate on a mini-hub or LAN switch only.
NOTE
The IP addresses assigned to the instrument(s) must be fixed
(permanently assigned) addresses. If you intend to connect your system to
your site’s network, each piece of equipment must have a unique, fixed
(static) IP address assigned to it.
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6850 Series GC Site Preparation
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Basic Tools
The GC/MS comes with a few basic tools and consumables
depending on the specific inlet and detector that you
ordered. Below is a general list of what comes with the
instrument.
Table 45 Basic tools
Tool or consumable
Used for
6850 Series GC
T10 and T20 Torx wrenches
Removing tray. Removing covers to
access gas control modules, traps, and
pneumatic connections.
1/4-inch nut driver
FID jet replacement.
FID flow measuring insert
FID troubleshooting.
Column cutter, ceramic or diamond
Column installation.
1/8-inch Tee, Swagelok, brass
Connect gas supplies.
1/8-inch nuts & ferrules, Swagelok,
brass
Connect gas supplies.
Inlet septa appropriate for type
Inlet seal.
Inlet insert or liner
Contains sample during vaporization in
inlet.
GC/MS
1.5-mm and 2.0-mm hex driver
Source maintenance (disassembly).
Tool bag
Holding GC and MS tools.
Q-Tips
Cleaning source parts.
Cloths
Keeping surfaces and parts clean.
Gloves
Reducing contamination on GC and
MSD parts.
Funnel
Changing oil.
Hex key, 5 mm
Removing oil plug and screws in safety
shield handle.
Table 46 lists other useful tools not included with the GC.
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Table 46 Useful tools not included with GC
Tool
Used for
Custom Tee, G3430-60009
Connecting the same gas to front and
back EPC module.
ECD/TCD Detector plug, 5060-9055
Inlet pressure decay test
1/8-inch Ball Valve, 0100-2144
Inlet pressure decay test (one per
inlet)
Digital flow meter, Flow tracker 1000
Verifying flows, checking for leaks and
plugs
Electronic gas leak detector
Locating gas leaks; safety checks
when using Hydrogen
Column cutters
Cutting columns
T-10 and T-20 Torx drivers
Removing tray; removing covers to
access EPC modules, traps, and
possible leaks
1/8-inch tubing cutter (wire cutter
type)
Cutting gas supply tubing
Assorted wrenches: 1/4-inch,
3/8-inch, 7/16-inch, 9/16-inch
Gas supply and plumbing fittings
Electronic vial crimper
Assuring consistently air-tight vial
closure, regardless of who does the
crimping
Table 47 lists consumables that you may wish to order. First
time GC users should consider purchasing the following
supplies in order to maintain their system and prevent
interruptions in the use of their system. Please refer to the
latest Agilent consumables and supplies catalog and to the
Agilent web site at www.aglent.com/chem for part numbers
and recommended maintenance periods.
Table 47 Additional consumables
90
Consumable category
Consumable
Inlet supplies
Septa, o-rings, liners, adapter, and
seals
Inlet preventative maintenance (PM)
kits
Kits with individual parts needed to
maintain an inlet
Pneumatic supplies
Gases, traps, o-rings, seals, Swagelok
fittings
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6850 Series GC Site Preparation
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Table 47 Additional consumables
Consumable category
Consumable
Column supplies
Nuts, ferrules, adapters, guard
columns, retention gaps
Detector supplies
Jets, beads, liners, adapters, cleaning
kits
Application supplies
Standards, columns, syringes
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GC, GC/MS, and ALS
Site Preparation Guide
7693A Automatic Liquid Sampler Site
Preparation
Customer Responsibilities 94
Dimensions and Weight 94
Power Consumption 95
Environmental Conditions 95
Chiller Supplies 96
Basic Tools 97
This section outlines the space and resource requirements
for a 7693A automatic liquid sampler (ALS). For a successful
and timely installation of the ALS, the site must meet these
requirements before beginning installation. Necessary
supplies (operating supplies, consumables, and other
usage- dependent items such as vials, syringes, and solvents)
must also be available. Refer to the Agilent Web site at
www.agilent.com/chem for the most up- to- date listing of GC,
GC/MS, and ALS supplies and consumables.
Agilent Technologies
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7693A Automatic Liquid Sampler Site Preparation
Customer Responsibilities
The specifications in this manual outline the necessary
space, electrical outlets, tubing, operating supplies,
consumables, and other usage- dependent items such as vials,
syringes, and solvents required for the successful installation
of instruments and systems.
If Agilent is delivering installation and familiarization
services, users of the instrument should be present
throughout these services; otherwise, they will miss
important operational, maintenance, and safety information.
If Agilent is delivering installation and familiarization
services, delays due to inadequate site preparation could
cause loss of instrument use during the warranty period. In
extreme cases, Agilent Technologies may ask to be
reimbursed for the additional time required to complete the
installation. Agilent Technologies provides service during the
warranty period and under maintenance agreements only if
the specified site requirements are met.
Dimensions and Weight
Select the laboratory bench space before the system arrives.
Pay special attention to the total height requirements. Avoid
bench space with overhanging shelves. See Table 1.
Table 1
Required height, width, depth, and weight
Product
Height (cm)
Width (cm)
Depth (cm)
Weight (kg)
G4513A Injector
51
16.5
16.5
3.9
G4514A Tray
29
44
43
6.8
G4515A Bar Code Reader
not applicable
not applicable
not applicable
0.3
G4522A Cooling Accessory
not applicable
not applicable
not applicable
2.2
(plus water
weight)
Additional space requirements
• GC with 7693A ALS injector
Requires 50 cm (19.5 in) above the GC
• GC with 7693A ALS tray
Requires 45 cm (17.5 in) left of the GC
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Power Consumption
The 7693A injectors, tray, and bar code reader/heater/mixer
draw power from the GC. No other power source is required.
Environmental Conditions
Operating the instrument within the recommended ranges
optimizes instrument performance and lifetime. The sampler
system operates in the same environment as its parent GC.
See:
7820A GC
Table 4
The conditions assume a noncondensing, noncorrosive
atmosphere.
Table 2
Environmental conditions for operation and storage
Product
Conditions
Operating temp
range
Operating humidity range
Maximum
altitude
G4513A Injector,
G4514A Tray,
G4515A Bar Code
Reader
Operation
–5 to 45 °C
5–95%
4,300 m
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7693A Automatic Liquid Sampler Site Preparation
Chiller Supplies
If using the optional G4522A Cooling Accessory, you will
need to supply:
• A water chiller
• Tubing and 1/8- inch Swagelok fittings to connect the
chilled water and return water to the chiller
• A container or drain to dispose of condensate from the
tray
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7693A Automatic Liquid Sampler Site Preparation
Basic Tools
The 7693A ALS comes with a few basic tools and
consumables depending on the hardware that you ordered.
Below is a general list of what comes with the instrument.
Table 3
Basic tools and consumables
Tool or consumable
Used for
T10 Torx wrench
Replacing turret. Replacing syringe
carriage.
T35 Torx wrench
Removing tray.
Sample vial starter pack
Syringe, 10 uL
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7693A Automatic Liquid Sampler Site Preparation
GC, MSD, and ALS Site Preparation Guide
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