Ametek 241CE II User manual

241CE II Hydrocarbon Dewpoint Analyzer
USER MANUAL
PN 903-8797, Rev A
PROCESS INSTRUMENTS
REFERENCE: CERTIFICATION NO:
CSA CERTIFICATE: 1108925 (LR 48179-30)
KEMA 02ATEX2121 X

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PN 903-8797, Rev A
Contents
Safety Notes................................................................................................................................................vii
Electrical Safety .........................................................................................................................................vii
Grounding...................................................................................................................................................vii
Personnel and Equipment Safety Information............................................................................. viii
Environmental Information – WEEE ............................................................................................xi
Special Warnings and Information.....................................................................................................xii
Equipment Used in Hazardous Locations................................................................................xii
Electromagnetic Compatibility (EMC)............................................................................................. xiii
OVERVIEW .............................................................................................................................1-1
Application................................................................................................................................................1-2
About the Analyzer Sample System and Electronics.................................................................1-3
Sample Path......................................................................................................................................1-4
Working in This Manual........................................................................................................................1-9
Supplemental Information – Where Can I Find It?......................................................................1-9
INSTALLATION AND START-UP............................................................................................2-1
Safety Considerations ...........................................................................................................................2-1
Pre-Installation Requirements ...........................................................................................................2-2
Storage Prior to Installation ........................................................................................................2-2
Uncrating and Inspecting the Analyzer..................................................................................2-3
General Installation Information...............................................................................................2-4
Tools, Equipment, and Supplies Required.............................................................................2-4
Installing the Mechanical Components..........................................................................................2-6
Installing the Analyzer ..................................................................................................................2-6
Location and Environment.................................................................................................. 2-6
Installing the Heatsink/Measuring Cell Assembly.......................................................... 2-9
Installing the Sample System............................................................................................2-11
Sample System Prerequisites.....................................................................................2-12
Installing the Sample Probe.......................................................................................2-13
Installing the Sample and Vent Lines......................................................................2-14
Installing and Connecting the Purge Gas Line..............................................................2-16
Checking the Fuses............................................................................................................................. 2-17
Connecting I/O Signals, Alarm Relay Contacts, and AC Power ........................................... 2-18
Analog Input Terminals..............................................................................................................2-19
Analog Output Terminals.......................................................................................................... 2-20
Alarm Relay Terminals................................................................................................................2-22
Conguring the Hardware for Digital Communication ................................................. 2-23
Digital Communication Protocol.....................................................................................2-25
Contents | iii

PN 903-8797, Rev A
AC Power Connections ..............................................................................................................2-26
North American Installation .............................................................................................2-27
European Installation .........................................................................................................2-27
Start-Up and Verication................................................................................................................... 2-28
Powering Up the 241CE II Analyzer....................................................................................... 2-28
Displayed Signals (RUN Menu Scroll Sequence – Quick Reference).........................2-29
About the Measuring Cycle................................................................................................2-30
Purging/Hold Stage .....................................................................................................2-31
Cooling Stage................................................................................................................2-32
Warming Stage.............................................................................................................2-34
Sample System Leak Check...................................................................................................... 2-35
Adjusting the Sample Gas Flow Rate.................................................................................... 2-37
Sample System Volume and Flow Rates...................................................................................... 2-39
Normal Operation................................................................................................................................2-40
Analyzer Conguration......................................................................................................................2-41
USER INTERFACE...................................................................................................................3-1
Introduction to the User Interface....................................................................................................3-1
Navigating From the User Interface.........................................................................................3-4
About ApplicCFG and MonitorCFG Passwords...............................................................3-5
Working in the Dierent Menus........................................................................................................3-6
Working in the RUN Menu...........................................................................................................3-6
RUN Menu Parameters Dened..........................................................................................3-7
Interpreting the Parameter Results and Symbols Displayed on the
User Interface..........................................................................................................................3-9
Validating the Current Results ..................................................................................3-10
Viewing Previous Results ............................................................................................3-10
Working in the Status\History Menu .................................................................................... 3-11
Working in the Application Conguration Menu.............................................................3-14
Working in the Conguration Menu..................................................................................... 3-17
Current Output Zero/Span Calibration...........................................................................3-22
Operating in Standby Mode............................................................................................................ 3-22
MAINTENANCE AND TROUBLESHOOTING.........................................................................4-1
Safety Considerations ...........................................................................................................................4-1
Aftermarket Excellence and Long-Term Commitment to Safety and Quality ..................4-2
Requesting Technical Support...................................................................................................4-3
Requesting Authorization to Return Equipment ................................................................4-3
Requesting Analyzer Training.....................................................................................................4-3
Spare Parts Lists.......................................................................................................................................4-4
241CE II Analyzer (120 / 240 VAC) Spare Parts......................................................................4-4
Spare Analyzer Fuses.....................................................................................................................4-5
Replacement Boards......................................................................................................................4-5
Diagnostic Flowcharts ..........................................................................................................................4-6
Checking Flamepaths and Gaps................................................................................................4-7
Checking and Recording Operating Temperatures............................................................4-7
iv | 241CE II Hydrocarbon Dewpoint Analyzer

PN 903-8797, Rev A
Checking and Recording the Baseline Settings...................................................................4-8
Fault or Warning Status Conditions..........................................................................................4-8
Incorrect Information is Displayed on the User Interface................................................4-9
Sheltered Systems .......................................................................................................................4-10
Maintenance.......................................................................................................................................... 4-11
Cleaning or Replacing the Sample and Vent Lines.......................................................... 4-11
Measuring Cell Maintenance...................................................................................................4-14
Filterblock Maintenance............................................................................................................ 4-22
Examining and Caring for the Flamepaths.........................................................................4-29
Electronics Enclosure Flamepaths (Joining Surfaces).................................................4-30
Push-Button and Window Housing Flamepaths..........................................................4-31
Window (User Interface)............................................................................................................ 4-35
Troubleshooting and Diagnostics ................................................................................................. 4-36
About Alarms and Status Codes............................................................................................. 4-36
Types of Alarms.....................................................................................................................4-37
Warning Alarms............................................................................................................4-37
Fault Alarms ..................................................................................................................4-38
O-Spec Alarms............................................................................................................4-38
Alarm LED Status .................................................................................................................4-39
Operating in Standby Mode (Fault Alarm) ....................................................................4-40
Clearing (Resetting) Alarms...............................................................................................4-41
Enabling/Disabling the O-Spec Alarm.........................................................................4-41
Types of Status Codes..........................................................................................................4-42
Interpreting Status Codes and Extended Status Codes.......................................4-42
Suggested Corrective Actions....................................................................................4-44
Viewing Current Alarm Messages ............................................................................4-45
Viewing Historical Alarm Messages.........................................................................4-46
Status Code (SCode), Alarm Conditions, and Corrective Action...............................4-47
Extended Status Code (XSCode), Alarm Conditions, and Corrective Action..........4-51
Resetting the 241CE II Analyzer...................................................................................................... 4-56
SPECIFICATIONS....................................................................................................................5-1
241CE II Analyzer Approvals and Certications...........................................................................5-4
241CE II Analyzer ATEX/IECEx Marking ...................................................................................5-5
241CE II Analyzer CSA-Certied Marking...............................................................................5-5
FUNCTIONAL VERIFICATION ...............................................................................................6-1
Propane Vapor Pressure .......................................................................................................................6-4
References.................................................................................................................................................6-6
Contents | v

PN 903-8797, Rev A
APPENDIX A – SYSTEM OPTIONS........................................................................................ A-1
External Water Dewpoint/Content Option................................................................................... A-2
Equipment Installation ................................................................................................................ A-2
Electrical Connections ................................................................................................................. A-3
Calibrating the Voltage Input.................................................................................................... A-3
Remote Start Option ............................................................................................................................ A-6
APPENDIX B – DRAWINGS................................................................................................... B-1
Analyzer Block Diagram (WX-241CE II-1)...................................................................................... B-2
Digital Communications Wiring Diagram (WX-241CE II-5)..................................................... B-3
Interconnection Diagram (100-2091-13) ...................................................................................... B-4
Electrical Block Diagram (100-2091-15)......................................................................................... B-5
Optional I/O Wiring (100-2091-14).................................................................................................. B-6
Probe Mounting (WX-241CE II-6)..................................................................................................... B-7
vi | 241CE II Hydrocarbon Dewpoint Analyzer

PN 903-8797, Rev A
Safety Notes
WARNINGS, CAUTIONS, and NOTES contained in this manual emphasize critical
instructions as follows:
Important information that should not be overlooked.
An operating procedure which, if not strictly observed, may result in personal
injury or environmental contamination. Essential Health and Safety Re-
quirements are also included in – but are not limited to – Warnings.
An operating procedure which, if not strictly observed, may result in damage
to the equipment.
Burn hazard. Hot surface. Do not touch, allow to cool before servicing.
Electrical Safety
High voltages are present in the analyzer housings. Always shut down power source(s)
before performing maintenance or troubleshooting. Only a qualied electrician should
make electrical connections and ground checks.
Any use of the equipment in a manner not specied by the manufacturer may impair
the safety protection originally provided by the equipment.
Grounding
Instrument grounding is mandatory. Performance specications and safety protection
are void if instrument is operated from an improperly grounded power source.
Verify ground continuity of all equipment before applying power.
Contents | vii

PN 903-8797, Rev A
Personnel and Equipment Safety Information
This section describes important safety information to avoid personal injury and
damage to the equipment while installing, operating, maintaining, or servicing the
equipment. All safety regulations, standards, and procedures at the installation
location must be followed.
All personnel involved with the installation, start-up, operation, maintenance,
service, or troubleshooting of must review and follow these Warnings and Cautions.
Before working on the 241CE II Hydrocarbon Dewpoint Analyzer, read and understand
the following Warnings and Cautions, regarding safety and other required information.
Additional Notes, Warnings, and Cautions included in individual procedures in this
manual indicate special conditions to consider during installation, before opening the
241CE II Hydrocarbon Dewpoint Analyzer and while working on it.
All covers must be tightly fastened with all screws and the Measuring Cell As-
sembly must remain in place while the circuits are live.
Always disconnect main AC power and/or external power sources (example,
for relay contacts) to the analyzer before removing any sample system assem-
blies and components from the analyzer, or before opening any covers on the
analyzer.
If it is necessary to open the Ex d Electronics Enclosure while the circuits are
live, test the area for explosive gases and proceed only when the area is safe.
When the Electronics Enclosure door is open, take appropriate precautions to
avoid electrical shock. Hazardous voltages are present inside.
All electrical connections, adjustments, or servicing of the analyzer should be
performed only by properly trained and qualied personnel.
All electrical connections, materials, and methods (plus all safety policies and
procedures) must be made in compliance with local wiring regulations and
electrical codes for the hazardous location, and be approved by the Owner
Company, local electrical-inspection authority, and National/EU regulations.
viii | 241CE II Hydrocarbon Dewpoint Analyzer

PN 903-8797, Rev A
Do not apply power to the analyzer if there is damage (scratches, indentations,
or wear) to any amepath (on the Electronics Enclosure or Cell assembly).
Applying power to an analyzer with a damaged amepath is dangerous and
could result in serious injury or death, or serious damage to equipment. See
“Examining and Caring for the Flamepaths” in Chapter 4.
Replace parts immediately if damage or wear is apparent. Contact AMETEK if
there is any doubt about the integrity of any amepath.
The 241CE II Analyzer is designed for applications of sweet (H2S <50 PPM)
natural gas. The composition of the gas must be above the upper explosive
limit.
The electronic circuit boards and other static-sensitive components should be
stored and transported in static-shielding carriers or packages.
For electrical-shock protection, the analyzer must be operated from a
grounded power source that has a securely connected protective-ground
contact.
If it becomes necessary to handle any of the electronic circuit boards, do not
subject the boards to static discharge. The ideal solution is a static-safe work
area. Since such areas typically are not available at eld installation sites, the
use of a wrist strap connected directly to a ground is recommended. If a wrist
strap is not available, you should at the very least touch the metal chassis (to
ground yourself) before handling or touching the boards.
Do not exceed the maximum working pressure rating of the sample system –
13.8 MPa (2000 PSIG) – under any circumstances.
Do not exceed a Vent Line pressure of 344 KPAG (50 PSIG).
Contents | ix

PN 903-8797, Rev A
Special Conditions for Safe Use
During use, the Cooler Housing section of the Measuring Cell Assembly can
functionally be purged with a dry gas such as air or nitrogen. The pressure of
this gas at the upstream end of the breathing and draining device is maximum
7 kPag (1 PSIG).
The sample gas must be above the upper explosion limit and may have a
maximum pressure of 138 BAR, at a temperature of +40 °C (+104 °F).
Ex d certied conduit or cable seals that comply with the ameproof enclosure
cable entry sealing requirements of the local authority must be installed at
the entries to the Electronics Enclosure. All unused cable entry ports must be
plugged with a certied Ex d plug.
x | 241CE II Hydrocarbon Dewpoint Analyzer

PN 903-8797, Rev A
Warning Labels
These symbols may appear on the instrument to alert you of existing conditions.
Protective Conductor Terminal
(BORNIER DE L’ECRAN DE PROTECTION)
Schutzerde
Caution – Risk of electric shock
(ATTENTION – RISQUE DE DÉCHARGE ÉLECTRIQUE)
Achtung – Hochspannung Lebensgefahr
Caution – Refer to accompanying documents
(ATTENTION – SE RÉFERER AUX DOCUMENTS JOINTS)
Achtung – Beachten Sie beiliegende Dokumente
CAUTION – Hot Surface
(ATTENTION – SURFACE CHAUDE)
Achtung – Heiße Oberäche
Environmental Information – WEEE
This AMETEK product contains materials that can be reclaimed and recycled. In some
cases, the product may contain materials known to be hazardous to the environ-
ment or human health. In order to prevent the release of harmful substances into the
environment and to conserve our natural resources, AMETEK recommends that you
arrange to recycle this product when it reaches its“end of life.”
Waste Electrical and Electronic Equipment (WEEE) should never be disposed of in a
municipal waste system (residential trash). The Wheelie Bin marking on this product is
a reminder to dispose of the product properly after it has completed its useful life and
been removed from service. Metals, plastics, and other components are recyclable and
you can do your part by doing one of the following steps:
• When the equipment is ready to be disposed of, take it to your
local or regional waste collection administration for recycling.
• If you need further assistance in recycling your AMETEK product,
contact us through our Customer Support page at https://www.
AMETEKpi.com/customersupport/requestsupport.
Contents | xi

PN 903-8797, Rev A
Special Warnings and Information
Equipment Used in Hazardous Locations
See Chapter 5 – Specications for details about the suitability of this equipment in haz-
ardous locations. This analyzer must not be commissioned until a person trained in the
area of evaluating equipment for use in hazardous classied locations has conrmed
that this equipment and its installation are in compliance with the requirements for
the area.
Explosion Hazard – Do Not Disconnect Equipment Unless Power Has Been
Switched O or the Area is Known to be Non-Hazardous.
Risque d’explosion – Avant de déconnecter l’équipement, coupez le courant où
vous assurez que l’emplacement est designé non dangereux.
All input and output wiring must be in accordance with wiring methods authorized
for the area classication by the authority having jurisdiction. Ex d glands or stopping
boxes (seals) must be installed on ameproof enclosures.
xii | 241CE II Hydrocarbon Dewpoint Analyzer

PN 903-8797, Rev A
Electromagnetic Compatibility (EMC)
Read and follow the recommendations in this section to avoid performance
variations or damage to the internal circuits of this equipment when installed
in harsh electrical environments.
The various congurations of the 241CE II Analyzer should not produce, or fall victim to, electromagnetic
disturbances as specied in the European Union’s EMC Directive. Strict compliance to the EMC Directive
requires that certain installation techniques and wiring practices are used to prevent or minimize erratic
behavior of the Analyzer or its electronic neighbors. Below are examples of the techniques and wiring
practices to be followed.
In meeting the EMC requirements, the various Analyzer congurations described in this manual rely
heavily on the use of metallic shielded cables used to connect to the customer’s equipment and power.
Foil and braid shielded I/O and DC power cables are recommended for use in otherwise unprotected
situations. In addition, hard conduit, exible conduit, and armor around non-shielded wiring also pro-
vides excellent control of radio frequency disturbances. However, use of these shielding techniques is
eective only when the shielding element is connected to the equipment chassis/earth ground at both
ends of the cable run. This may cause ground loop problems in some cases. These should be treated on
a case-by-case basis. Disconnecting one shield ground may not provide sucient protection depending
on the electronic environment. Connecting one shield ground via a 0.1 microfarad ceramic capacitor is a
technique allowing high frequency shield bonding while avoiding the AC-ground metal connection. In
the case of shielded cables, the drain wire or braid connection must be kept short. A two-inch connec-
tion distance between the shield’s end and the nearest grounded chassis point, ground bar or terminal is
highly recommended. An even greater degree of shield performance can be achieved by using metallic
glands for shielded cable entry into metal enclosures. Expose enough of the braid/foil/drain where it
passes through the gland so that the shield materials can be wrapped backwards onto the cable jacket
and captured inside the gland, and tightened up against the metal interior.
Inductive loads connected to the low voltage “Alarm Contacts” are not recommended. However, if this
becomes a necessity, adhere to proper techniques and wiring practices. Install an appropriate transient
voltage suppression device (low voltage MOV, “Transzorb,” or R/C) as close as possible to the inductive
device to reduce the generation of transients. Do not run this type of signal wiring along with other I/O
or DC in the same shielded cable. Inductive load wiring must be separated from other circuits in conduit
by using an additional cable shield on the oending cable.
In general, for optimum protection against high frequency transients and other disturbances, do not
allow installation of this Analyzer where its unshielded I/O and DC circuits are physically mixed with AC
mains or any other circuit that could induce transients into the Analyzer or the overall system. Examples
of electrical events and devices known for the generation of harmful electromagnetic disturbances
include motors, capacitor bank switching, storm related transients, RF welding equipment, static, and
walkie-talkies.
Contents | xiii

PN 903-8797, Rev A
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xiv | 241CE II Hydrocarbon Dewpoint Analyzer

PN 903-8797, Rev A
Overview
The 241CE II Analyzer, which is well-suited for unattended operation at remote
locations, has been designed to comply with electrical classication require-
ments for general purpose and hazardous locations specic to this analyzer’s
intended application.
The 241CE II Analyzer is based upon a patented technique (chilled-mirror tech-
nique) for detecting and dierentiating between hydrocarbon and water con-
densates. The dierences in wetting properties are used to determine whether
the condensate on a chilled surface is a hydrocarbon or water. Water conden-
sate forms and remains as droplets, but hydrocarbon condensate spreads into
a thin lm because of the lower surface tension.
Overview |1-1

PN 903-8797, Rev A
Application
The 241CE II Analyzer is intended for applications that require hydrocarbon
dewpoint (HCDP) temperature measurements of natural gas. The analyzer
can also be congured to accept an optional, external water signal to provide
external water dewpoint (WDP) or external water content (WCT) measure-
ment outputs. The measurements for the HCDP and the external WDP/WCT are
displayed on the User Interface. The external signal does not aect the internal
operations of the analyzer, nor does it trigger alarms from the analyzer.
The 241CE II Analyzer is able to measure, internally, a water dewpoint tempera-
ture, but this measurement is used primarily for compensation in the calcula-
tion of HCDP measurements (to dierentiate between hydrocarbon and water
condensate); therefore, it is intended for diagnostic purposes only.
IMPORTANT
If your application requires WDP and WCT measurements, these
output signals must originate from an external source, such as the
AMETEK 3050-OLV Moisture Analyzer.
During normal operation, the analyzer continuously executes the measuring
cycle which consists of three stages performed in the following order:
• Purging/Hold Stage
• Cooling Stage
• Warming Stage
For details about each measuring cycle stage see“About the Measuring Cycle”
in Chapter 2.
1-2 | 241CE II Hydrocarbon Dewpoint Analyzer

PN 903-8797, Rev A
About the Analyzer Sample System and Electronics
The temperature of the analyzer and its sample system must be at
least 15 °C (27 °F) above the highest expected HCDP temperature of
the sample gas stream. The ambient temperature around the analyzer
and the gas owing into the Measuring Cell should not exceed 40 °C
(104 °F).
The sample ltering, ow control, and connection points for the Sample and
Vent Lines are all provided on the backpan (Figure 1-1). The remaining com-
ponents of the sample system – Sample Line, Sample Probe, Vent Line to a low
pressure are header (or vent to atmosphere) – can be supplied by AMETEK or
by the customer.
Figure 1-1.
Sample system component
layout.
Overview |1-3

PN 903-8797, Rev A
Sample Path
Sample gas is extracted from the process line via a 1/4" tube on the Sample
Probe. In the Sample Probe (Figure 1-2), the sample gas passes through an
isolation valve and into the Sample Line which carries it to the Filterblock As-
sembly.
Figure 1-2.
Gas ow schematic.
PROCESS INSTRUMENTS
FILTERBLOCK ASSEMBLY SCHEMATIC
KEMA 02ATEX2121 X
CSA CERTIFICATE: 1108925 (LR 48179-30)
REFERENCE: CERTIFICATION NO:
1-4 | 241CE II Hydrocarbon Dewpoint Analyzer

PN 903-8797, Rev A
Figure 1-3.
Measuring Cell Assembly,
cutaway view.
Overview |1-5

PN 903-8797, Rev A
Figure 1-4.
Logic diagram.
ANALOG
OUTPUTS
SAMPLING
VALVE
LEDS PHOTO-
TRANSISTOR
RTD
MIRROR
TEC
ASSEMBLY
TEC
POWER
SUPPLY
LOGIC
POWER
SUPPLY
MICROCONTROLLER
DISPLAY & PUSH-BUTTONS
ELECTRONICS ENCLOSURE
MEASURING CELL ASSEMBLY
1-6 | 241CE II Hydrocarbon Dewpoint Analyzer