Roxar FSM-IT Owner's manual

Brand
Roxar
Model
FSM-IT
Category
Measuring, testing & control
Type
Owner's manual
Client:
Product title:
FSM-IT
Package title:
Document title:
FSM-IT INSTRUMENT USER MANUAL
Author(s):
Inge Hagedal
Prod No. Orig. Disc. Type Seq. no.
Roxar doc. No.: 641 - 16959 - I - MU - 0020
Page: 1 of 31
Client doc. No.: Client rev. No.: Attachment: NA
Tag No.:
P.O. No. (Contract No.):
Roxar Ref. No.:
System code:
SDRL code:
Area/Location:
Clients approval:
¨ Not for client approval
q Accepted
q Accepted with comments
q Not accepted, revise and resubmit
q Issued for information
q Accepted with comments. Interface frozen.
Sign:
Date:
Roxar
approval:
Rev.:
03
Date:
2008-12-03
Made by:
Pål Skjervold
Checked by:
Erling Holten Wiken
Approved by:
Inge Hagedal
Reason for issue:
Roxar ASA
Teglgården
N-7485 Trondheim, Norway
Tel: +47 73 82 50 00
Fax: +47 73 82 50 50
E-mail: trondheim@roxar.com
www.roxar.com
Roxar ASA
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Table of contents:
1 INTRODUCTION..................................................................................................................................3
1.1 HOW TO USE THIS MANUAL ...............................................................................................................3
1.2 NORMATIVE REFERENCES .................................................................................................................4
1.3 ASSISTANCE.....................................................................................................................................4
2 MAIN DATA..........................................................................................................................................5
2.1 DEFINITIONS.....................................................................................................................................5
2.2 SYMBOLS .........................................................................................................................................5
2.3 GUARANTEE RESTRICTIONS...............................................................................................................6
2.4 ENVIRONMENT .................................................................................................................................6
2.5 EQUIPMENT DATA.............................................................................................................................7
2.6 EQUIPMENT ......................................................................................................................................8
3 TECHNICAL DESCRIPTION............................................................................................................10
3.1 GENERAL INFORMATION .................................................................................................................10
3.2 MEASUREMENT PRINCIPLE..............................................................................................................10
4 PREPARATION..................................................................................................................................12
4.1 MULTITREND PREPARATION ...........................................................................................................12
4.2 INSTRUMENT UNIT ..........................................................................................................................12
4.2.1 Preparation...............................................................................................................................12
4.3 OPERATION ON NEW MEASUREMENT LOCATIONS..............................................................................12
4.3.1 Tools/Equipment........................................................................................................................12
4.3.2 Measurement acquisition at new locations..................................................................................13
5 OPERATING INSTRUCTIONS.........................................................................................................15
5.1 OPERATION INSTRUCTIONS OF FSM-IT PORTABLE INSTRUMENT.......................................................15
5.1.1 Connection to a measurement location.......................................................................................15
5.1.2 Operation at established measurement locations........................................................................15
5.2 REPORTING / OPERATIONAL HAZARDS ............................................................................................16
5.3 QUALIFICATION REQUIREMENTS AND TRAINING PROGRAM FOR OPERATORS ....................................16
5.3.1 Operator qualifications..............................................................................................................16
5.4 INSTRUMENT UNIT MENUS – SCREEN PANELS .................................................................................16
5.4.1 Measurement panel....................................................................................................................18
5.4.2 Presentation panel.....................................................................................................................22
5.4.3 Status panel...............................................................................................................................22
5.4.4 Off.............................................................................................................................................23
5.5 ERROR AND WARNINGS...................................................................................................................24
5.5.1 Operational Error Conditions....................................................................................................24
5.5.2 Error report...............................................................................................................................27
6 MAINTENANCE.................................................................................................................................28
6.1 MAINTENANCE INSTRUCTIONS ........................................................................................................28
6.1.1 Routine inspection.....................................................................................................................28
6.1.2 Periodic maintenance................................................................................................................28
6.1.3 Calibration................................................................................................................................29
6.1.4 Charging the batteries...............................................................................................................29
6.1.5 Storing, preservation and maintenance of preservation...............................................................29
7 SPARE PARTS LIST...........................................................................................................................30
7.1 INSTRUMENT UNIT AND ACCESSORIES .............................................................................................30
8 REFERENCE FIGURES TABLE.......................................................................................................31
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1 INTRODUCTION
This section is an introduction to the Roxar ASA User Manual for the below mentioned
products, with description of how the manual is structured and how it shall be used. This
section also contains assistance contact information to the user.
This user manual covers the following FSM corrosion monitoring equipment:
n FSM-IT Portable Instrument including Cables, Battery Pack and Charger.
The use of the FSM-IT instrument towards MultiTrend software is described in document:
470-16959-I-MU-0003 MultiTrend User Manual. Available inside the MultiTrend program
itself.
1.1 How to use this manual
This user manual has been prepared to provide our customer with all necessary technical
assembly, installation, operational and maintenance information of the following equipment:
n FSM-IT Portable Instrument including Cables, Battery Pack and Charger.
The manual contains eight sections:
1. INTRODUCTION
2. MAIN DATA
3. TECHNICAL DESCRIPTION
4. PREPARATIONS AND INSTALLATION
5. OPERATING INSTRUCTIONS
6. MAINTENANCE
7. SPARE PARTS LIST
8. REFERENCED FIGURES TABLE
NOTE! Each section contains detailed descriptions made to separately fulfill the needs for
various personnel and interests.
INTRODUCTION: is a description of the user manual for the above-mentioned products. It
describes how the manual is structured and how it shall be used. This section also contains
assistance contact information to the user.
MAIN DATA: such as weight, outline dimensions, including restrictions and information about
how to order the products are covered herein.
TECHNICAL DESCRIPTION: gives a more specific description of the various items of the
various products. This section is the 'textbook' of the manual, where the various measuring
techniques are fully described, together with recommendations for use of the various types of
equipment.
PREPARATION AND INSTALLATION: describes all necessary preparations to be carried
out before installation of the various parts of this equipment, including checklists and
observations.
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OPERATING INSTRUCTION: describes all steps - if applicable, in sequence, of the
installation of the products, including checklists, precautions, consequences, hazards,
observations, operator qualifications and reporting.
ERRORS AND WARNINGS sub-section: contains a description of conditions, which might
cause problems, typically shown on the instrument screen, and how to handle these
conditions.
MAINTENANCE: describes all necessary precautions and maintenance operations, which
normally can be done by the user, including those which are recommended to be carried out
by Roxar, in order to ensure safe, reliable and economical operation. This section contains
detailed procedures for routine inspection, periodic maintenance, corrections and minor
repair with recommended spare parts, consumables, reporting requirements, relevant
document references and, if applicable, requirements for special skills and minimum crew.
SPARE PARTS LIST: gives all necessary spare parts for the various equipments, which is
required for operation.
REFERENCE TABLE: contains a list of all referenced information and figures used in the
manual.
1.2 Normative references
This document has been issued in compliance with the most common international standards
for user manual documentation, including the NORSOK Z-CR-001 and NS 5820.
The NORSOK Z-CR-001 and NS 5820 standards are jointly developed by The Norwegian Oil
Industry Association (OLF) and Federation of Norwegian Engineering Industries (TBL) and
administrated by Norwegian Technology Standards Institution (NTS).
1.3 Assistance
Roxar is an international group of companies with worldwide distribution of our products. We
are one of the major suppliers of corrosion monitoring technology. In case of repair service or
further assistance, please contact the authorized Roxar service center in your area.
Authorized agents are present in other areas than given below. For information about Roxar
agents, please contact your nearest Roxar service center.
Roxar Global Service Centre
Phone: +47 81 55 22 33
E-mail: gsc@roxar.com
Roxar ASA
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2 MAIN DATA
This section gives equipment information regarding any restrictions in guarantee and use
including weight and outlines dimensions. This section gives necessary information on how
to order the various equipments, based on information from typical data sheets.
2.1 Definitions
Term Explanation
FC FSM coefficient: New pin-pair measurement / Signature measurement * 1000
FSM The electric field signature method (also called The electrical fingerprint)
FSM-IT Field Signature Method Inspection Tool
MultiTrend
A computer program for retrieval, processing and display of data from an FSM based
instrument
CPU-board Central Processing Unit board.
GUI Graphical User Interface. Here: User operational interface on IU screen.
IU FSM IT - Portable Instrument Unit
HW Hardware
LCD Liquid Crystal Display. Type of screen used in the FSM-IT IU
NDT
Non-destructive Testing. Method of measurement, in this case of metal wall thickness
and integrity, whereby the measurement object is left undamaged
Ppt Part per thousand: 0,1%
Process
Area (PA)
Here used in the sense of a plant or platform which has measurement locations for the
FSM-IT, and where all data is typically collected and displayed.
RS-232 Serial communication standard. Here used between IU and PC
RS-485 Serial communication standard. Here used between IU and SMI
Signature Baseline measurement used as initial reference for later readings
Site A process area with FSM-IT installations
SM Sensor matrix (sensing points)
SMI Sensor Matrix Interface
SW Software
Tag
Unique identification of a location of measurement within a PA.
Note that the notion ‘Tag’ is also used as a short for ‘measurement location’
UI User Interface. In this document mainly for instrument operation
WT Wall Thickness
Table 2.1: Table of definitions
2.2 Symbols
Warning: Be sure to read the User Manual before use.
It contains information vital for the use of the instrument.
The product meets all the essential requirements of the relevant European Directive(s)
Product has been tested and meets applicable standards for safety and/or performance,
including the applicable standards written or administered by the American National
Standards
Institute (ANSI), Underwriters Laboratories (UL), Canadian Standards Association
(CSA), National Sanitation Foundation (NSF), and others.
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2.3 Guarantee restrictions
Visually inspect all components for shipping damage. If shipping damage is found, notify
carrier at once. Shipping damage is not covered by warranty. The carrier is responsible for all
repair and replacement costs resulting from damage in shipment.
Read and follow all instructions, warnings, and cautions to avoid personal injury or property
damage during system operation. Roxar ASA cannot be responsible for damage or injury
resulting from unsafe use of or unsafe system operation. Contact Roxar ASA when in doubt
about applications and safety precautions.
2.4 Environment
Environment Range Comment
Operation temperature
-20 to + 60°C
Instrument Unit
Storage temperature
-20 to + 85°C
Instrument Unit
Certification - hazardous area
No certificate
available
Instrument Unit / Complete system
I.e: 'Hot work permit' is required
Certification - EMI Restricted Complete system; According to ref.- 1
Table 2.2: Specifications for FSM-IT equipment
Measurement Object
Range if
relevant
Comment
Straight pipe 4”–16”OD No comment
Bend 4”–16”OD No comment
T-joint weld 4”–16”OD
NOTE! Mixing of fluids with different temperature
might cause problems for FSM measurements.
Special care should be exercised.
Containers Sections
Special care should be exercised. E.g: Poss. inner
structures may reduce measurement accuracy
Carbon Steel Accepted No comment
Stainless Steel Accepted No comment
Temperature
-20 to 140°C
'Normal temperature' system
Extended Temperature
-20 to 500°C
'High temperature' system (Hi-temp)
Lagging; Thermal insulation Needed Incomplete lagging may produce erratic data
Process temperature gradients Not relevant
Temperature gradients in the inherent fluids may
cause problems for FSM measurement. Special
care should be exercised.
WT 4–20mm
If poorer accuracy is accepted, this range may be
exceeded.
Table 2.3: Specifications for FSM-IT measurement objects
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2.5 Equipment data
The FSM-IT is a technology for inspection of metallic pipes, pipelines and containers.
Based on the patented FSM (Field Signature Method) technique, FSM-IT detects metal loss,
pitting or grooving due to corrosion by detection of small changes in the way current flows
trough the metallic structure.
FSM-IT consists of an appropriate sensing matrix, a portable instrument and MultiTrend PC
software for administration of the measurement points, analysis of data and presenting and
printing of the corrosion measurement results.
The portable instrument unit is connected to the sensing matrices to make an FSM
measurement and to buffer data in IU memory. Measurement data is later transferred to a
PC running MultiTrend software.
A special charger is used to charge the instrument unit battery pack. The battery pack is the
power supply for the instrument in a normal measurement situation. The battery pack is
easily replaceable to ensure additional power for the IU.
The Li-Ion part of battery pack provides power for the instrumentation part of the instrument.
The Lead batteries are used to provide power for the actual measurement on the pipe.
It set a high excitation current on the pipe, up to 200A. The measurements are in the 0.15
mV area. Lead batteries are 2V 12.5 Ah, and Li-Ion are 7.2V 1.35Ah
Inspection points monitored by the FSM-IT system can be upgraded to on-line measurement
positions at additional costs. Contact Roxar assistance as shown in §3.1.
Performance data of the FSM-IT measurement system:
Measurement Defect Typical accuracy Comment
General corrosion +/– 0.5 % of actual WT
E.g: 20 mm WT gives a resolution of 0.1mm
Weld corrosion +/– 5 % of actual WT Trained MultiTrend user is needed.
Pitting (pit width > 1.5 WT) +/– 10 % of actual WT Analysis at Roxar is needed.
1
Erosion +/– 2.5 % of actual WT
Analysis at Roxar is needed.
Table 2.4: Typical accuracy of FSM-IT measurement system
1
To achieve the specified accuracy for pit quantification, the pin matrix must be customized for pit
detection. At present, pit analysis is not part of the standard MultiTrend program and such analysis
consequently has to be performed by a CorrOcean assistance group.
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2.6 Equipment
Figure 2.1: FSM-IT instrument in measurement configuration.
Figure 2.2: Charger / Battery pack connection
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Instrument Unit
FSM-IT PARTS LIST Part No.
Material
Qty. for
Installation /
commissioning
Qty. for
operation
FSM-IT Operator KIT
(Includes all parts listed below)
18200KIT
N/A 1 1
FSM-IT Instrument 18200 N/A 1 1
FSM-IT Battery Charger 18210 N/A 1 1
FSM-IT Instrument/Measurement
Cable
18221 N/A 1 1
FSM-IT Battery Charging Cable 18222 N/A 1 1
FSM-IT Communication cable 18223 N/A 1 1
FSM-IT Carrying case 18239 N/A 1 1
Table 2.5: FSM-IT parts list
Restrictions in use:
A 'hot work permit' is needed to measure in EX graded zones.
The supplied IU protection bag should be used for field work.
Read and follow all instructions, warnings and cautions to avoid personal injury or property
damage during use of the charger. Roxar ASA is not responsible for damage or injury
resulting from unsafe use of product, lack of maintenance. Contact Roxar ASA when in doubt
about any application and safety precautions described herein.
HOW TO ORDER:
The FSM-IT kit can be ordered as Roxar PN: 18200KIT
2
.
Cf: Spare parts list in § 7.1.
2
This kit does not include the FSM-IT sensor matrix.
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3 TECHNICAL DESCRIPTION
This section gives more specific description of the various items of the various products and
is the 'textbook' of the manual, where the various measuring techniques are fully described,
together with recommendations for users of the various types of equipment.
3.1 General information
FSM-IT has its force applied in the following applications:
• Carbon steel structures where corrosion / erosion may be a problem.
• Stainless steel structures where erosion may be a problem.
• Given accuracy, as specified in §2.4, is adequate.
• Intrusive inspection methods and systems are not acceptable.
• Off-line inspection system is acceptable.
• Operator independence is important.
• On-line inspection system may be a future request.
FSM-IT may not be the right choice in the following applications:
• Stainless steel structures where narrow pitting is expected.
• Short response times are required. E.g: inhibitor tuning. In such applications an on-
line traditional FSM system will be a better choice.
3.2 Measurement Principle
The FSM measurement principle is a non-intrusive monitoring technique designed to detect
small changes in wall thickness. The technique involves passing a controlled excitation
current through the structure to establish a unique electric field signature. Any subsequent
changes that appear in the electric field, as a result of corrosion / erosion, will be detected as
a ‘potential change’ across sensor pins attached to the outside of the structure.
General Corrosion:
In this situation, corrosion is uniformly distributed inside the structure and the response is
straightforward. The current distribution is uniform, and the loss of metal is linear related to
the increase in resistance and the measured pin pair voltages. An increase in pin pair
voltage can be directly related to general corrosion.
Weld Corrosion:
Typical weld corrosion is narrow compared to the pin pair distance, i.e.: only a part of the
target suffers from a reduction in wall thickness. The raw measurements have to be
compensated by an empirical model. The actual depth of weld groove corrosion has to be
calculated by special algorithms. If such model compensation is not employed, the wall
thickness measurements will be strongly underestimated.
Pitting:
Pitting introduces an even more complex situation than weld corrosion. At a pit, the
increased resistance will cause the current to flow around the pit. In unprocessed data, a pit
will typically look wider than its actual size, and the depth value is strongly underestimated.
The adjacent pairs along the current direction contribute negative values due to the current
decrease at these locations. If pitting analysis is not activated, the wall thickness
measurements will be strongly underestimated.
NOTE! At present, manual analysis by Roxar is needed.
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Interference with temperature variations:
The electrical resistance in steel is a function of temperature. If the temperature in the
measurement object increases by 10°C, the resistance will typically increase by 3% to 5%
varying with the steel parameters. FSM-IT handles this problem in the following manner:
A measuring reference, made of the same steel material is used for a direct compensation of
temperature variations. The reference is thermally connected but electrically isolated from
the measuring object. The temperatures of both the measuring object and of the steel-
reference are measured with high accuracy. These temperature readings are used by the
MultiTrend temperature compensation algorithms.
In high temperature systems, the temperature difference of the steel-reference and the object
may be several degrees. If no temperature compensation is performed on such
measurements, the data will look like results from general corrosion. It may even look like
the wall thickness is increasing!
MultiTrend contains temperature compensation algorithms to minimize such thermal effects.
Figure 3.1: Pipe with current excitation. Current distribution and voltage potential show a
regular pattern.
Figure 3.2: Pipe with current excitation and a local defect. Current distribution and voltage
potentials will change around the defect.
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4 PREPARATION
This section describes all necessary preparations to be carried out before installation of the
various parts of this equipment, including checklists and observations.
All preparations and installation guidelines to implement before normal operation may start are
described in this chapter for the following equipment:
n FSM-IT Portable Instrument
NOTE! For installation of sensor matrix — see separate manual.
4.1 MultiTrend preparation
The declaration and definition of all necessary FSM-IT instruments, sites and tags are
normally performed by Roxar service personnel as a part of the installation of new FSM-IT
measurement locations.
How to setup the MultiTrend are described in document:
4174-16595-I-MU-0003 MultiTrend User Manual.
This manual is available in the MultiTrend software, just press F1. Opens as a PDF file.
4.2 Instrument unit
4.2.1 Preparation
Before the FSM-IT instrument is capable of handling a new measurement location the
following actions should be performed:
n Define the new measurement location in MultiTrend.
n Transfer the set-up file from MultiTrend to the instrument.
n Ensure correct time and date setting by using MultiTrend.
n Check available instrument memory by using MultiTrend.
4.3 Operation on new measurement locations
4.3.1 Tools/Equipment
The following tools / equipment are needed:
Description Size / type
Quantity
(units)
Comments
IU with charged battery pack
N/A 1 No comment
Protection bag N/A 1 No comment
IU measurement cable N/A 1 No comment
Table 4.1: FSM-IT operational equipment
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4.3.2 Measurement acquisition at new locations
Proper handling of a new measurement tag presupposes the following steps:
ON SITE:
Connecting to the tag:
• The FSM-IT instrument must be switched OFF
• Connect the IU to the tag by using the FSM-IT measurement cable
• Switch the IU ON by pressing anywhere on the screen for minimum 3 seconds.
• After booting, the IU will check internal status, check if a tag is connected, and identify the
tag based on SMI SW serial numbers and tag configuration file. When a tag is identified,
the specific tag set-up parameters are used to configure the measurement system, i.e.:
excitation current setting, measurement matrix configuration, etc...
The instrument acknowledges an identified tag by issuing several messages on the screen:
• The tag is identified by configuration file <filename>, (a valid file name is displayed).
• The instrument proceeds with current calculations — and reports the estimated current. If
an excitation current value not equal to zero is set, the automatic current calculation
routine is skipped and the set current value is substituted.
NOTE! Initially the identification messages are shown for only ~10 seconds on the IU
screen. The messages may, however, be reviewed by accessing page 2 of the
instrument STATUS panel, cf § 5.4.3.
NOTE! If any error or warning message is displayed, Confer § 5.5 for proposed actions.
Excitation current checking:
• Wait until IU initialization and current setting routines are finished and the MAIN panel is
displayed.
• Press the <MEASURE> button on the MAIN panel, (the MAIN panel is substituted by the
MEASUREMENT panel).
• Press <MEASURE> button once more, (to take a single measurement). The
measurement summary has no significance at this stage, as no signature is yet present.
• Press <RETURN> button, (to re-enter the MAIN panel).
• Press <STATUS> button, and check the values named
Pin voltage status:
I = xxx A (value of excitation current)
Pair1 = yyy µV (value of obtained pin pair voltage)
The pin pair voltage should read ~150 µV (positive or negative). Proceed to manual
current adjustment if deviation > 10%, (cf. § 5.4.1.7).
• Press <RETURN> button to re-enter the MAIN panel.
Manual excitation current adjustment:
(From instrument MAIN panel)
• Press the <MEASURE> button on the MAIN panel, (the MAIN panel is substituted by the
MEASUREMENT panel).
• Press the <ADVANCED> button, (a new button line is displayed)
• Press the <E CURRENT> button, (a new button line with numerical keys is displayed)
A default excitation current value is shown. The value may be changed in steps by
pressing one of the buttons: <–10 A>, <–1 A>, <+1 A>, or <+10 A>.
• When the desired value is reached, press the <RETURN> button to save the new value
and re-enter the previous panel.
• Press the <RETURN> button once more to return to the MEASUREMENT panel.
• (Eventually press the <RETURN> button once more to return to the MAIN panel.)
NOTE! The latest current value setting is not effective as a new default value for the tag
until a 'signature' is taken!
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Signature generation:
(From instrument MAIN panel)
• Press the <MEASURE> button on the MAIN panel, (the MAIN panel is substituted by the
MEASUREMENT panel).
• Press the <ADVANCED> button, (a new button line is displayed)
• Press the <SIGNATURE> button to make a 'signature' measurement.
• Press the <RETURN> button once more to return to the MEASUREMENT panel.
• (Eventually press the <RETURN> button once more to return to the MAIN panel.)
NOTE! A signature should only be generated when the excitation current value seems
reasonable.
NOTE! The signature measurement will be obtained using the most recent excitation
current value. Any old instrument signatures will be overwritten.
Old 'signatures' cannot be recovered in the field, but this may be done by MultiTrend.
The instrument 'signature' does not affect the data transferred to the MultiTrend database, it
is solely used for data presentation on the instrument screen.
Sequence measurements:
(From instrument MAIN panel)
• Press the <MEASURE> button on the MAIN panel, (the MAIN panel is substituted by the
MEASUREMENT panel). The instrument is now ready to take a sequence of 1, 3, 5 or
9 measurements. The default value for the connected tag is displayed.
• Press <MEASURE> button once more, (to take the desired sequence of measurements).
• Check the measurement summary. Expected values are of the following magnitude:
MeanFC: ~ +/– 0.3
MaxFC: ~ 0.99 (for any SMI / pin pair number)
MinFC: ~ –0.99
• If the measurement summary reveals values where:
MaxFC – MinFC > 4,
The following items should be checked:
Excitation current value and pin pair voltage status (~ 150 μV).
Is the temperature stable — i.e.: measurement object thermally insulated?
Good cable connections; e.g.: current excitation cable.
• Re-enter the MAIN panel and press the <PRESENT> button. Check the pin pair readings
of SMI #1. 90% of the values should read FC-values less than 2‰ (ppt). If this is not the
case, remove the potential causes for poor readings (cf: above check points)
• Press <MEASURE> button once more, (to take the desired sequence of measurements.
Possibly, the length of the measurement sequence may be extended to further avoid
noise and spurious results).
• Re-check the measurement summary, eventually all the presented pin pair readings of
SMI #1.
Check IU and Tag status:
(From instrument MAIN panel)
• Press the <STATUS> button, (the MAIN panel is substituted by the STATUS panel,
page1).
• Verify that the temperature readings read reasonable values.
NOTE! The <UPDATE> button of the STATUS panel will only update the date, time and
battery voltage values until a regular measurement (or 'signature') is made. Once a
measurement is finished, the temperature and pin voltage status values are also
updated.
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5 OPERATING INSTRUCTIONS
This section describes all steps - if applicable, in sequence, of the installation of the products,
including checklists, precautions, consequences, hazards, observations, operator
qualifications and reporting.
Operating instructions in this user manual are limited to the following:
n FSM-IT Instrument
n Battery charger
n Battery
5.1 Operation instructions of FSM-IT portable instrument
The FSM-IT inspection system is based on the following elements: A measurement matrix
with a connection point for the portable instrument, a portable instrument used to take and
buffer FSM measurements from various locations, and a PC based software to administrate
the data, analyze the data and present corrosion / erosion results.
A typical inspection sequence is as follows:
The instrument is prepared for measurements as shown in § 5.1.2. In the field, the operator
connects the instrument to selected measurement tags and performs measurements. Back in
the office, the instrument is connected to a PC running MultiTrend, measurement data is
downloaded to the PC, analyzed and presented by MultiTrend.
5.1.1 Connection to a measurement location
NOTE! The instrument must be switched OFF. (By pressing the <OFF> button in the MAIN
panel).
Use the FSM-IT measurement cable to connect the instrument to a tag / measurement
location.
Switch ON the instrument (by pressing the touch screen anywhere for minimum 3 seconds)
after connection is established.
NOTE! Switch OFF the instrument before disconnection.
5.1.2 Operation at established measurement locations
Before measurement:
• Switch on the instrument
• Check battery condition plus time and date. (The batteries should be fully charged. I.e:
instrument battery > 8.0V, excitation battery ~ 2.2V.)
• Instrument time and date may be synchronized with MultiTrend if necessary.
• The spare battery pack should be charged.
The instrument should contain tag set-up information.
A 'hot work permit' is needed when measuring in EX graded zones.
Measurement sequence:
• Instrument is OFF. (If not, switch instrument OFF)
• Connect instrument to the selected tag.
• Switch ON the instrument by pressing the LCD screen anywhere for minimum 3 seconds.
• Press the <MEASURE> button. (New MEASURE panel appears)
• Press the <AVG NUM> button to select an appropriate number of readings to average
over.
• Press any numeric button, e.g.: 5 readings. (A default value is suggested.)
• Press the <RETURN> button to return to the MEASURE panel
• Press the <MEASURE> button once more. (The selected number of readings are taken)
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NOTE! A valid tag name should be shown in the TAG field of the second top line of the panel.
No ERROR or WARNING sign should be shown in the STATUS field of the first top
line of the panel. (For errors / warnings: See § 5.5.1.)
Check the MeanFC, MaxFC and MinFC values for each measurement. These values should
remain stable from measurement to measurement, I.e: their variation should stay < 5.
A complete list of measurement values from all pin pairs is offered in the PRESENT panel of
the instrument. Use the <PRESENT> button in the MAIN or PRESENT panel to view this
information!
5.2 Reporting / Operational Hazards
The FSM-IT measurement system does not affect the integrity of the measurement object.
No penetration of the structures is performed.
In EX-zones, a hot work permit is needed to take measurements.
5.3 Qualification Requirements and Training Program for Operators
5.3.1 Operator qualifications
There are two levels of operator qualifications:
Level Description
1 Operation at already operative measurement locations. Battery charging.
Battery replacement.
2 Operation at new (non-operative) measurement locations.
At level 1, any mechanic strictly following the instructions given in this user manual, can
perform installation of equipment and take measurements.
At level 2, only specially trained personnel certified by Roxar can perform installation of
equipment
5.4 Instrument Unit Menus – Screen Panels
General information:
The instrument unit contains an LCD screen, capable of showing several graphical panels.
On top of the LCD there is a touch panel capable of sensing the position of a pressed
fingertip. In order to activate a function, a press must be directed to the area inside of the
respective button. E.g: press inside the <STATUS> button when you want to display
instrument status information. The detection of a button press is shown by a momentary
color inversion of the button area.
NOTE! Do not move your finger while a button is selected (inverted), as this will corrupt
recognition of your button press!
Buttons displayed with a small triangular icon (4) below their label always cause a transition
to a sub-panel. Buttons without this triangular icon immediately perform the action described
by their label.
The present instrument SW (ver. 2.01) is equipped with 10 different panels. One panel
always covers the top two lines of the LCD screen.
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Figure 5.1: Top Panel
The TOP panel displays four parameters of interest:
• Site field: Displays the name of the connected SITE.
• Tag field: Displays the name of the connected TAG.
• Status field: Displays one status word, e.g.: OK or WARNING.
When WARNING or ERROR is displayed, it is advisable to check the
instrument STATUS, to determine the cause of the message.
• Date field: Displays the current instrument date. As all measurements are time-
stamped, it is imperative for data interpretation that this date corresponds
to the actual real date. Any change of instrument date is described in
Switch ON the instrument by performing one of three actions:
1. Press the touch panel anywhere for minimum 3 seconds. Or…
2. Connect to a PC running MultiTrend. Any communications will power up the instrument.
Or…
3. Disconnect the battery pack - wait 10 seconds – then reconnect the battery pack. I.e: the
instrument will be switched ON at battery changes.
After a short initialization period, the following MAIN panel is displayed on the instrument
screen. During the initialization period several status messages are displayed on screen.
These messages are blanked by the MAIN panel, but they are retained in page 2 of the
STATUS panel for possible later review.
Figure 5.2: Main Panel
The MAIN panel contains four buttons. By pressing one of these the following actions are
initiated:
1. <MEASURE>: The measurement sub-panel is activated and displayed.
2. <PRESENT>: The data presentation sub-panel is activated and displayed.
3. <STATUS>: The instrument & SMI status sub-panel is activated and displayed
4. <OFF>: Switches off the instrument.
NOTE! The instrument will switch off automatically after a non-activity
period of 10 minutes.
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Sub-Panels:
The following chapters describe the various sub-panels and button actions:
5.4.1 Measurement panel
Figure 5.3: Measurement Panel
The measurement panel contains five buttons. The actions obtained by pressing any one of
them are described below.
5.4.1.1 MEASURE
All FSM-IT measurements are taken at the tag and site that are identified in the TOP panel.
The measurements are performed according to defined tag set-up parameters.
While a measurement is taken, the text: 'Measurement in progress, please wait' is displayed
on screen. When more than one reading pr measurement is selected, information on the
number of remaining readings is updated and displayed. The touch panel is disabled during
this period.
After a measurement is finished, the data is appended to a dedicated measurement data file.
There is one dedicated data file (*.dat) pr tag.
A measurement summary containing three parameters is shown on screen:
Mean ppt value: A statistical mean value of all the pair readings (compared to signature). No
corrosion (change) will be shown as 0 (zero).
Max ppt value: A statistical maximum value of all the pair readings (compared to signature)
including information on the localization of the maximum value.
E.g: 1.05 (1.5) à maximum ppt value 1.05 is found at SMI # 1, pair # 5
Min ppt value: A statistical minimum value of all the pair readings (compared to signature).
A normal situation example:
After a signature measurement plus one ordinary measurement is taken on a new tag, the
summary may be as below:
MeanFC: 0.13
MaxFC: 0.87 (1.7)
MinFC: -1.05
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An example of a summary that calls for further analysis by MultiTrend:
This result may be caused by corrosion or uncompensated temperature effects. I.e: Data
needs a further check by MultiTrend!
MeanFC: 20.23
MaxFC: 21.40 (1.7)
MinFC: 19.70
A non-signature example:
If no signature reading has been taken, the following measurement summary may be
expected:
MeanFC: -1000.00
MaxFC: -1000.00 (1.1)
MinFC: -1000.00
A complete list of all pin pair values may be obtained by pressing the <PRESENT> button, cf:
§ 5.4.1.2
5.4.1.2 PRESENT
The data presentation sub-panel is activated and displayed.
Figure 5.4: Presentation Panel
A complete list of all pin pair values from the most recent measurement is displayed. The
pairs defined for the measurement SMI display both their 'raw-value' and FC-value. The 'raw-
value' is the actual pin pair voltage expressed in µV (micro volts). The reference SMI
displays, naturally, just the 'raw' µV-values. An FC-value is a relative figure; i.e. a change in
pin pair voltage compared to the signature reading. This change is presented as a ‰ (ppt)
value.
When the measurement consists of a series of several readings (cf: <AVG NUM> button, §
5.4.1.3), a 'quality factor' value for each pair is included.
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Example: pair raw_value FC_value
01 +158.36 +0.22
02 –158.23 +0.19
03 +157.97 +0.01
04 –158.40 –0.15
. . .
. . .
. . .
ref01 +158.02
ref02 –158.03
ref03 +158.02
ref04 –158.03
. .
. .
. .
As the number of pin pairs varies between matrices (tags), the presentation panel is
equipped with a <NEXT> and a <PREVIOUS> button to allow a means of scrolling through
all measurement data. The total data list may easily contain more data than can be fitted
onto a single page. In such cases, the first page will contain data from the first 16 pin pairs.
To view data from subsequent pairs, the <NEXT> button must be pressed. In cases with
large matrices (many pairs), it will be necessary to press the <NEXT> button several times to
obtain a complete data list. At the end of the pairs list, the reference pair values are always
displayed. The <PREVIOUS> button is obviously present to allow the user to scroll back
through pin pairs.
The presentation panel is equipped with a <RETURN> button. By pressing this button, the
user is transferred back to the previous panel, (here: the measurement panel)
5.4.1.3 AVG NUM
The measurement averaging sub-panel is activated and displayed.
Figure 5.5: Measurement Averaging Panel
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Roxar FSM-IT Owner's manual

Brand
Roxar
Model
FSM-IT
Category
Measuring, testing & control
Type
Owner's manual
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