Emerson Process Management (Rosemount Analytical) designs, manufactures and
tests its products to meet many national and international standards. Because these
instruments are sophisticated technical products, you MUST properly install, use, and maintain them to ensure they continue to operate within their normal specications.
The following instructions MUST be adhered to and integrated into your safety program
when installing, using and maintaining Emerson Process Management (Rosemount
Analytical) products. Failure to follow the proper instructions may cause any one of the
following situations to occur: Loss of life; personal injury; property damage; damage to
this instrument; and warranty invalidation.
• Read all instructions prior to installing, operating, and servicing the product.
• If you do not understand any of the instructions, contact your Emerson Process
Management (Rosemount Analytical) representative for clarication.
• Follow all warnings, cautions, and instructions marked on and supplied with the
product.
• Inform and educate your personnel in the proper installation, operation, and
maintenance of the product.
• Install your equipment as specied in the Installation Instructions of the
appropriate Instruction Manual and per applicable local and national codes.
Connect all products to the proper electrical and pressure sources.
• To ensure proper performance, use qualied personnel to install, operate, update,
program, and maintain the product.
• When replacement parts are required, ensure that qualied people use replacement
parts specied by Emerson Process Management (Rosemount Analytical).
Unauthorized parts and procedures can affect the product’s performance, place the
safe operation of your process at risk, and VOID YOUR WARRANTY. Look-alike
substitutions may result in re, electrical hazards, or improper operation.
• Ensure that all equipment doors are closed and protective covers are in place,
except when maintenance is being performed by qualied persons, to prevent
electrical shock and personal injury.
The information contained in this document is subject to change without notice.
X-STREAM and IntrinzX are marks of one of the Emerson group of companies.
All other marks are property of their respective owners.
2nd edition, 2010-10
Rosemount Analytical
Process Gas Analyzer Center of Excellence
Emerson Process Management GmbH & Co. OHG
Industriestrasse 1
63594 Hasselroth
Germany
T +49 6055 884 0
F +49 6055 884 209
Fig. 8-4: X-STREAM eld housings - Interior views(shown without front doors) ................8-25
Fig. 8-5: XSP - Allocation of signal connectors ...................................................................8-26
Emerson Process Management GmbH & Co. OHGTOC-10
Instruction Manual
HASXEE-IM-HS
04/2010
X-STREAM XE
INTRODUCTION
The instruction manual contains information about the component assembly, function,
installation, operation and maintenance of the X-STREAM® series gas analyzers.
The manual covers several X-STREAM analyzer models and so may contain information
about congurations and/or options not applicable to your analyzer.
The installation and operation of units for use in explosive (hazardous) environments is
not covered in this manual.
Analyzers intended to be used in such environments are supplied with further instruction
manuals, which should be consulted in addition to this.
DEFINITIONS
The following denitions apply to the terms WARNING, CAUTION and NOTE, and the symbol , as used in this manual.
Indicates an operational or maintenance procedure, a process, a condition,
an instruction, etc.
Failure to comply may result in injury, death or permanent health risk.
Safety Instructions
S
Indicates an operational or maintenance procedure, a process, a condition,
an instruction, etc.
Failure to comply may result in damage to or destruction of the instrument,
or impaired performance.
NOTE!
Indicates an imperative operational procedure, an important condition or instruction.
The symbol
refers to more information, provided on the indicated page or chapter.
Emerson Process Management GmbH & Co. OHG S-1
, together with a page number ( 6-5 ) or chapter headline ( Startup )
X-STREAM XE
TERMS USED IN THIS INSTRUCTION MANUAL
Instruction Manual
HASXEE-IM-HS
04/2010
Explosive Gas(es)
Flammable Gases and gas mixtures in a mixture with air within the explosive limits.
Flammable Gas(es)
Gases and gas mixtures are assigned to be
ammable if they might become ignitable
when in a mixture with air.
Infallible Containment
This term is derived from the standards of
explosion protection especially from the requirements for pressurized housings: thus an
infallible containment can be characterized
by no intended leakage out of the gas paths
enabling gas to enter the inner compartment
of the analyzer housing.
Intrinsically Safe Cell (IS Cell)
Cells supplied with an intrinsically safe power
signal, approved by a Test Institute, to operate
with explosive gases.
The design ensures the IS cells remains safe
even in case of failure and explosive gases
are not ignited.
Protection Class IP66 / NEMA 4X
Both terms are used to specify conditions for
equipment to be installed outdoor.
IP stands for Ingress Protection, the rst number species protection against solid objects
(6. = dust tight) while the second number
species the degree of protection against
liquids (.6 = heavy seas).
NEMA stands for National Electrical Manufacturers Association. 4X species a degree
of protection to personnel against incidental
contact with the enclosed equipment; to provide a degree of protection against falling dirt,
rain, sleet, snow, windblown dust, splashing
water, and hose-directed water; and that will
be undamaged by the external formation of
ice on the enclosure
Upper Explosion Limit (UEL)
Volume ratio of ammable gas in air above
which an explosive gas atmosphere will not
be formed: the mixture of gas and air is too
rich in fuel (decient in oxygen) to burn.
Lower Explosion Limit (LEL)
Volume ratio of ammable gas in air below
which an explosive gas atmosphere will not
be formed: the mixture of gas and air lacks
sufcient fuel (gas) to burn.
NAMUR
NAMUR is an international user association of
automation technology in process industries.
This organisation has issued experience reports and working documents, called recommendations (NE) and worksheets (NA).
Emerson Process Management GmbH & Co. OHGS-2
Instruction Manual
HASXEE-IM-HS
04/2010
SYMBOLS USED ON AND INSIDE THE UNIT
This symbol attached to the unit ...... means
dangerous voltages may be exposed. Covers
may only be removed when power to the unit is
disconnected, and only be trained personnel.
hot surfaces may be exposed. Covers may
only be removed by trained personnel and when
power is disconnected. Certain surfaces may
remain hot.
further information and instructions are required: read the instruction manual.
X-STREAM XE
Safety Instructions
S
Emerson Process Management GmbH & Co. OHG S-3
Instruction Manual
X-STREAM XE
HASXEE-IM-HS
04/2010
SYMBOLS USED IN THIS MANUAL
Wherever one or more of the following symbols are used in this instruction manual, read the
accompanying information and instructions carefully.
Follow these warnings and notes carefully
to minimize risk.
This symbol used in the manual ...... means
dangerous voltages may be exposed
hot surfaces may be exposed
possible danger of explosion
toxic substances may be present
substances harmful to health may be present
indicates notes relating to heavy instruments
electrical components may be destroyed by
electrostatic discharges
units must be disconnected from the power
source
indicates basic conditions or procedures are
being described.
This symbol may also indicate information important for achieving accurate measurements.
Emerson Process Management GmbH & Co. OHGS-4
Instruction Manual
HASXEE-IM-HS
04/2010
X-STREAM XE
SAFETY INSTRUCTIONS
INTENDED USE STATEMENT
X-STREAM series gas analyzers are intended to be used as analyzers for industrial purposes. They must not be used in medical, diagnostic or life support applications nor as
safety devices.
Using X-STREAM XE analyzers as safety devices, requiring redundant design or SIL classication, is also not permitted.
No independent agency certications or approvals are to be implied as covering such
applications!
GENERAL SAFETY NOTICE / RESIDUAL RISK
If this equipment is used in a manner not specied in these instructions, protective systems may be impaired.
Despite of incoming goods inspections, production control, routine tests and application
of state-of-the-art measuring and test methods, an element of risk remains when operating
a gas analyzer!
Even when operated as intended and observing all applicable safety instructions some
residual risks remain, including, but not limited to, the following:
Safety Instructions
S
• An interruption of the protective earth line, e.g. in an extension cable, may result in
risk to the user.
• Live parts are accessible when operating the instrument with doors open or covers
removed.
• The emission of gases hazardous to health may even be possible when all gas connections have been correctly made.
Avoid exposure to the dangers of these residual risks by taking particular care when installing, operating, maintaining and servicing the analyzer.
Emerson Process Management GmbH & Co. OHG S-5
Instruction Manual
X-STREAM XE
Safety Instructions
HASXEE-IM-HS
04/2010
AUTHORIZED PERSONNEL
In-depth specialist knowledge is an absolutely necessary condition for working with and
on the analyzer.
Authorized personnel for installing, operating, servicing and maintaining the analyzer are
instructed and trained qualied personnel of the operating company and the manufacturer.
It is the responsibility of the operating company to
• train staff,
• observe safety regulations,
• follow the instruction manual.
Operators must
• have been trained,
• have read and understood all relevant sections of the instruction manual before
commencing work,
• know the safety mechanisms and regulations.
To avoid personal injury and loss of property, do not install, operate, maintain or service
this instrument before reading and understanding this instruction manual and receiving
appropriate training.
DISPOSAL OF BATTERIES
• This instrument contains a Li battery (button cell) of type CR 2032.
• The battery is soldered and usually does not need to be replaced during the
instrument´s lifetime.
• At the end of lifetime, the instrument must be disposed in compliance with the wast
regulations. The disposal specialist then has to disassemble the instrument and
dispose the battery in compliance with the regulations.
Emerson Process Management GmbH & Co. OHGS-6
Instruction Manual
HASXEE-IM-HS
04/2010
Safety Instructions
X-STREAM XE
INSTALLING AND CONNECTING THE UNIT
The following notices should be carefollowed to ensure compliance with the low voltage directive
(Europe) and other applicable regulations.
1.
Suitable grounding connections should be made at all connectors provided for this purpose.
2. All safety covers and grounding connections must be properly reinstated after maintenance
work or troubleshooting.
3. A fuse should be provided at the installation site which will completely disconnect the unit
in case of failure. Installing an isolating switch may also be benecial. In either case, these
components must be constructed to conform to recognised norms.
Safety Instructions
S
OPERATING AND MAINTAINING THIS UNIT
On leaving our factory, this instrument conformed to all applicable safety directives.
In order to preserve this state of affairs, the
operator must take care to follow all the instructions and notes given in this manual and
on the unit.
Before switching on the unit, ensure that the
local nominal mains voltage corresponds to
the factory-set operational voltage of this
unit.
Any interruption of the protective earth connections, whether inside or outside of the unit,
may result in exposure to the risk of electricity.
Deliberately disconnected the protective earth
is therefore strictly forbidden.
Removing covers may expose components
conducting electric current. Connectors may
also be energised. The unit should therefore
be disconnected from the power supply before
any kind of maintenance, repair or calibration
work requiring access to the inside of the
unit.
Only trained personnel who are aware of
the risk involved may work on an open and
energized unit.
Fuses may only be replaced by fuses of an
identical type and with identical ratings. It is
forbidden to use repair fuses or to bypass
fuses.
Take note of all applicable regulations when
using this unit with an autotransformer or a
variable transformer.
Substances hazardous to health may escape
from the unit’s gas outlet. This may require
additional steps to be taken to guarantee the
safety of operating staff.
Emerson Process Management GmbH & Co. OHG S-7
X-STREAM XE
The units described in this manual may not be used in explosive atmospheres
without additional safety measures.
Instruction Manual
HASXEE-IM-HS
04/2010
Safety Instructions
EXPLOSION HAZARD
ELECTRICAL SHOCK HAZARD
Do not operate without covers secure. Do not open while energized.
Installation requires access to live parts which can cause death or serious
injury.
For safety and proper performace this instrument must be connected to a
properly grounded three-wire source of power.
TOXIC GASES
This unit’s exhaust may contain toxic gases such as (but not limited to)
e.g. sulfur dioxide. These gases can cause serious injuries.
Avoid inhaling exhaust gases.
Connect the exhaust pipe to a suitable ue and inspect the pipes regularly
for leaks.
All connections must be airtight to avoid leaks;
7-4 for instructions on
performing a leak test.
Emerson Process Management GmbH & Co. OHGS-8
Instruction Manual
HASXEE-IM-HS
04/2010
The models intended for outside and wall mounted use (X-STREAM XEF,
XDF and XEFD) weigh between 26 kg (57 lb) and 63 kg (139 lb) depending
on options installed.
X-STREAM XE
Safety Instructions
HEAVY INSTRUMENT
Safety Instructions
Two people and/or lifting equipment is required to lift and carry these
units.
Take care to use anchors and bolts specied to be used for the weight of
the units!
Take care the wall or stand the unit is intended to be installed at is solid
and stable to support the weight!
CRUSHING HAZARD
Take care of crushing hazard when closing the front door of analyzer eld
housings!
Keep out of the closing area between enclosure cover and base!
OPERATION AT LOW TEMPERATURES
When operating an instrument at temperatures below 0 °C (32 °F), do
NOT apply gas nor operate the internal pump before the warmup time has
elapsed!
S
Violation may result in condensation inside the gas paths or damaged
pump diaphragm!
HIGH TEMPERATURES
Hot parts may be exposed when working on photometers and/or
heated components in the unit.
Emerson Process Management GmbH & Co. OHG S-9
X-STREAM XE
Safety Instructions
GASES AND PREPARATION OF GASES
GASES HAZARDOUS TO HEALTH
Follow the safety precautions for all gases (sample and span gases) and
gas cylinders.
Before opening the gas lines, they must be purged with air or neutral gas
(N2) to avoid danger from escaping toxic, ammable, exposive or hazardous
gases.
Instruction Manual
HASXEE-IM-HS
04/2010
FLAMMABLE OR EXPLOSIVE GASES
When supplying explosive gases or ammable gases with concentrations of
more than 25 % of the lower explosion limit, we RECOMMEND implementing
one or more additional safety measures:
• purging the unit with inert gas
• stainless steel internal pipes
• ame arrestors on gas inlets and outlets
• infallible measuring cells.
Emerson Process Management GmbH & Co. OHGS-10
Instruction Manual
HASXEE-IM-HS
04/2010
POWER SUPPLY
Only qualied personnel following all applicable and legal regulations may
install the unit and connect it to power and signal cables. Failure to comply
may invalidate the unit’s warranty and cause exposure to the risk of damage,
injury or death.
This unit may only be installed by qualied personnel familiar with the
possible risks.
Working on units equipped with screw-type terminals for electrical
connections may require the exposure of energized components.
X-STREAM XE
Safety Instructions
CONNECTING UNITS FOR PERMANENT INSTALLATION
Safety Instructions
S
Wall-mounted units have no power switch and are operational when
connected to a power supply. The operating company is therefore required
to have a power switch or circuit breaker (as per IEC 60947-1/-3) available
on the premises. This must be installed near the unit, easily accessible to
operators and labelled as a power cut-off for the analyzer.
HAZARD FROM WRONG SUPPLY VOLTAGE
Ensure that the local power voltage where the unit is to be installed,
corresponds to the unit’s nominal voltage as given on the name plate
label.
ADDITIONAL NOTES FOR UNITS WITH SCREW-TYPE TERMINALS
Cables for external data processing must be double-insulated against mains
power.
If this is not possible, cables must be laid in such a way as to guarantee
a clearance of at least 5 mm from power cables. This clearance must be
permanently secured (e.g. with cable ties).
Emerson Process Management GmbH & Co. OHG S-11
Instruction Manual
X-STREAM XE
HASXEE-IM-HS
04/2010
General Operational Notes
GENERAL OPERATING NOTES
EXPLOSION HAZARD
Exhaust gases may contain hydrocarbons and other toxic gases such as
carbon monoxide. Carbon monoxide is toxic.
Faulty gas connections may lead to explosion and death.
Ensure that all gas connections are connected as labelled and airtight.
• The unit must be installed in a clean and dry area protected from strong vibrations and
frost
.
• The unit must not be exposed to direct sunlight and sources of heat. Admissable ambient
temperatures (see technical details) must be adhered to.
• Gas inlets and outlets must not be interchanged.All gases must be supplied to the unit already
processed. When using this unit with corrosive sample gases, ensure that these gases do
not contain components harmful to the gas lines.
• Admissable gas pressure for sample and test gases is 1,500 hPa.
• Exhaust lines must be laid inclined downwards, depressurized, protected from frost and
according to applicable regulations.
• If it is necessary to disconnect the gas lines, the unit’s gas connectors must be sealed with
PVC caps to avoid polluting the internal gas lines with condensate, dust, etc.
• To ensure electromagnetic compatibility (EMC), only shielded cables (supplied by us on request, or of equivalent standard) may be used. The customer must ensure that the shielding
is correctly tted. Shielding and terminal housing must be electrically connected; submin-D
plugs and sockets must be screwed to the unit.
• When using optional external adapters (submin-D to screw-type terminal), protection from
electromagnetic interference can no longer be guaranteed (CE compliance pursuant to EMC
guidelines). In this case the customer or operating company functions as a system builder
and must therefore ensure and declare compliance with EMC guidelines.
Emerson Process Management GmbH & Co. OHGS-12
Instruction Manual
HASXEE-IM-HS
04/2010
X-STREAM XE
Chapter 1
Technical Description
The following are the main features of the new
Emerson Process Management X-STREAM
gas analyzers in brief:
• compact design with easily accessible
internal components
• customizable for a wide range of applications: different housings are available
while internal construction remains largely
identical
• a highly integrated mainboard contains
all interfaces and basic functions for the
operation of the unit
• multilingual microprocessor-controlled
user interface with liquid crystal (LCD) to
indicate measurement value and status
messages
• units for outdoor use are optionally supplied with an impact tested front panel
• widerange power supply unit for worldwide
use without modication (1⁄2 19in units with
external PSUs)
The new X-STREAM gas analyzers can
measure up to ve different gas components using any combination of the following
analyzing techniques (restrictions apply to
1
⁄2 19in units):
IR = non-dispersive infrared analysis
Modied resistant measuring cells are available for use with corrosive gases and/or
gases containing solvents.
Special congurations (e.g. intrinsically safe
or infallible measuring cells) for the analysis
of combustible gases are also available.
Chapter 3 gives a detailed description of
the various measuring techniques.
Standard applications
Different housings allow X-STREAM analyzers to be tailored to the many different
applications:
• Tabletop units in 1⁄2 19in modular design,
with IP 20 protection class
• Tabletop and rack mountable units in 19in
modular design, with IP 20 protection
class
• Stainless steel wall mountable field
housing with IP 66 / NEMA 4X protection
class for outdoor use (operating temperature -20°C to +50°C).
• Cast aluminium wall mountable field
housing with IP 66 / NEMA 4X protection
class for outdoor use (operating temperature -20 °C to +50 °C).
The various analyzer types are described in
more detail beginning with 1-13.
X-STREAM analyzers in eld housings, when
tted with various protective devices, can also
be installed and operated in hazardous areas.
Available options are:
• Pressurized enclosure conforming to
ATEX directive 94/9/EC, for installation
in Zone 2.
X-STREAM XE
1 Technical Description
• Non-incendive assembly for installation in
Zone 2 and Div 2 for the measurement of
non-ammable gases.
• Simplified purge system (Z-purge) for
installation in North American Div 2 environments.
The cast aluminium eld housing is designed
to withstand an explosion and intended to be
used in hazardous areas of Zone 1.
More information about EXanalyzers can be obtained from
your Emerson Process Management sales ofce.
Instruction Manual
HASXEE-IM-HS
04/2010
Note!
These instructions do not detail the installati-
on nor operation of X-STREAM analyzers in
hazardous areas. If you intend to use your
analyzer for such purposes, pay attention to the separate instruction manuals
supplied with analyzers to be used in hazardous areas.
Emerson Process Management GmbH & Co. OHG1-2
Instruction Manual
HASXEE-IM-HS
04/2010
1.1 Overview
X-STREAM XE
1.1 Overview
All X-STREAM gas analyzers feature an
easy-to-use graphical user interface, which
displays measurement values, status and
error messages, and menus for the input of
parameters.
For ease of use, the operator can select one
of three languages for the display: By default
any analyzer is congured with English and
1.1.1 The Front Panel
The graphic LCD shows measurement and
status information with plain text and symbols.
The symbols are designed to indicate the different status 'Failure', 'Function check', 'Out
of specication' and 'Maintenance request' as
specied by the NE 107 standard. For further
information,
chapter 8.
German language sets, while a third can
optionally be added. Currently available:
French, Italian, Portuguese and Spanish..
Technical Description
1
The analyzer software is operated by means
of only six keys.
Depending on the analyzer model, the display
is protected with an impact tested glass panel,
to withstand even harsher conditions and to
provide a higher IP protection class of up to
IP66 / NEMA Type 4X.
1342
1 Graphic display
2 “Measure“ key
3 “Enter” key
4 4 keys for settings and menu navigation
Fig. 1-1: X-STREAM Front Panel (here the X-STREAM XEGP)
Emerson Process Management GmbH & Co. OHG 1-3
X-STREAM XE
Instruction Manual
HASXEE-IM-HS
04/2010
1.1 Overview
Further analyzer features include (some of
them optional):
• Congurable measurement display:
• gas measurements results and/or se-
condary results (e.g. ow)
• one or two independently congurable
pages
• Congurable measurement units
• user congurable units and conversion
factors from ppm to user unit
• 3 software access levels with individual
password protection, and administrator
selectable activation
• protection against unauthorized con-
guration changes
• Unattended zero and span calibrations
• enables operation without user inter-
action
• Communication via serial interface and
Ethernet
• enables remote operation
• Web browser interface
• for remote operation with full analyzer
control
• Realtime clock (supports time server synchronization)
• enables time controlled operation
• Data logger with configurable logging
periods
• for legislative and quality documenta-
tion
• Event logger with configurable events
list
• keep monitoring the analyzer, even
when not present
• Log les sizes only limited by free memory
on an internal SD card
• up to 2 GB for up to 1 year logging wi-
thout storage problems
• replaceable (not by operator, as the
card is also used for storage of analyzer
operating software les)
• Export of log les via USB, ethernet and
webbrowser
• export to text les
• enables external data analysis
• Save and load analyzer conguration to/
from an internal protected memory area
and USB stick
• save a functional conguration to protect
it against changes or for reference
• restore a functional setup in case of
misconguration or crashes
• Calculator for 'virtual' channels or measurement calculations
• setup a virtual measurement channel
by calculating results of existing real
channels (e.g. summarize NO and NO2
to show NOx)
• PLC (programmable logic controller) for
enhanced functionality
• no need to add an external PLC to con-
trol external valves, pumpes, etc.
• supports uploading externally written
PLC text les into the analyzer
See the related sections in this manual for
more detailled information on these features.
Emerson Process Management GmbH & Co. OHG1-4
Instruction Manual
HASXEE-IM-HS
04/2010
1.2 Conguration of Gas Lines
1.2 Conguration of Gas Lines
X-STREAM XE
Various materials are available to allow the
analyzer to be customized to your needs.
The materials used are selected based on
the characteristics of the sample gas, e.g.
diffusion rate, corrosiveness, temperature
and pressure.
1.2.1 Materials Used
The physical and chemical properties of the
sample gas as well as the conditions under
which measurement takes place inuence the
choice of materials. Among those available
are Viton
®
, PFA and stainless steel.
1.2.2 Safety Filter
The analyzers are generally tted with an
internal stainless-steel lter. This lter is not
a replacement for any dust lter in the preparation of the gas, but represents a last line of
defence.
1.2.3
Gas Inlets and Outlets
Rackmounted and tabletop devices are tted
with PVDF inlets and outlets (ø 6/4 mm) as
standard. Alternatively, Swagelok™ or stainless steel ttings (ø 6/4 mm or
1
⁄4 in).
Wall-mounted eld housings are supplied
with Swagelok™ or stainless steel ttings (ø
6/4 mm or 1⁄4 in).
Other materials available on request.
X-STREAM XEFD units are always supplied
with ame arrestors and stainless steel ttings
(ø 6/4 mm or
1
⁄4 in).
1.2.5 Infallible Containments
Infallible containments are gas lines which,
due to their design, can be regarded as permanently technically tight. This is achieved
by, for example, welded joints, or metallically
sealing joints (e.g. tap connectors and binders), providing they are seldom disconnected. Gas lines congured in this manner can
be used for measuring noxious, ammable
and explosive gases. At the time of going to
press, infallible containments are available
for thermal conductivity analysis (TC) only.
Further information about infallible containments can be found in the separate instruction
manual supplied with these units.
Infallible containments do not
render it unnecessary to test for
leaks regularly, e.g. following
lengthy breaks in service, substantial alterations, repairs and
modications.
Read the separate instruction
manual giving detailed instructions on the conguration, operation and maintenance of units
fitted with infallible containments.
Technical Description
1
1.2.4 Tubing
Unless otherwise specied, the analyzers
are supplied with Viton
®
or PVDF piping
(ø 6/4 mm or 1⁄4 in). Other materials (e.g.
stainless steel) can be used, depending on
the application.
Emerson Process Management GmbH & Co. OHG 1-5
X-STREAM XE
1.2 Conguration of Gas Lines
1.2.6 Optional Components for Gas Lines
Instruction Manual
HASXEE-IM-HS
04/2010
The analyzers can, as an option, be tted with
further components. Not all components are
available for all analyzer types:
• internal sample gas pump
• internal valve block
• internal ow sensors
• internal ow monitor switch
• internal barometric pressure sensor
• internal temperature sensors.
1.2.6.1 Internal Sample Gas Pump
An internal sample gas pump is used when
the sample gas is under insufcient pressure.
It ensures a constant ow of sample gas (max.
2.5 l/min through the analyzer).
When in internal pump is tted, the relevant
parameter in the software setup dialog is set
to Yes ( 6-88). The pump can be controlled either manually through a software
menu or optionally by a digital input.
Note!
Gas pressure is limited to atmospheric, if an
internal pump is used!
1.2.6.2 Internal Valve Block
An internal valve block allows all necessary
gas lines (zero gas, span gas, sample gas)
to remain permanently connected to the
analyzer. Valves are then activated automatically when required (e.g. during automatic
calibration).
When an internal valve block is tted, this
is shown in the relevant software setup
dialog as either Internal or Int+Ext (
6-88). The valves are controlled by either
a software menu, optionally by digital input, or automatically during autocalibration.
Depending on the model, up to two valve
bocks can be tted.
1.2.6.3 Internal Flow Sensor
Up to two internal ow sensors can measure
the ow of gas and, compared to the ow
monitor switch can provide a ow reading.
They also can activate an alarm signal in the
event of a failure.
The alarm level for ow sensors is operator
adjustable to up to 2000 ml/min. Depending
on the model, up to two sensors can be tted
and evaluated separately.
When a sensor is tted, the relevant parameter in the software setup dialog is set to Yes
(
6-90).
If the current ow rate is too low, a status
message is displayed and the parameter
under CHECK REQUESTS.. is set to Yes
(
Chapter 8 'Troubleshooting').
1.2.6.4 Internal Flow Monitor Switch
An internal ow switch monitors the gas ow
and activates an alarm signal in case it is
not sufcient. Compared to the ow sensore
it does not provide a ow reading, but only
indicates if the ow is sufcient, or not.
The alarm level for the internal ow switch is
xed and not operator adjustable. Additional
external switches may be used and connected
via digital inputs. All tted ow switches are
evaluated to share a common alarm.
When an internal ow switch is tted, the relevant parameter in the software setup dialog
is set to Yes (
If the current ow rate is too low, a status
6-85).
message is displayed and the parameter
under CHECK REQUESTS.. is set to Yes
(
Chapter 8 'Troubleshooting').
Emerson Process Management GmbH & Co. OHG1-6
Loading...
+ 472 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.