ABB MT series User manual

Safety Manual SM/MT5000-EN Rev. C 07.2021
MT5000
Guided Wave Radar Level Transmitter
Introduction
This safety manual provides the following information:
Overview
Electrical installationand ratings
Explosive atmosphere markings
Special conditions of use
Routine & maintenance tests
Installation drawings
EU declaration of conformity
Certification forSIL 3 Capable
State-of-the-art loop
powered, 4-20 mA output
guided wave radar
transmitter for liquid level
applications
K-TEK Products

2
Table of Contents
1 General......................................................................................3
1.1 Introducon............................................................................3
1.2 Product descripon.................................................................3
1.3 General safety informaon.....................................................3
1.4 Informaon on WEEE Direcve 2002/96/EC
(WasteElectrical andElectronic Equipment)..........................3
1.5 Pressure Equipment Direcve (PED) (97/23/CE).....................3
1.6 Use of instrucon....................................................................3
2 Installaon in Hazardous Locaons............................................3
2.1 Explosives atmospheres installaon........................................3
2.2 Safety informaon for electrical installaon...........................4
2.3 Safety informaon for inspecon and maintenance...............4
2.4 Operatorlability.......................................................................4
2.5 Qualified personnel..................................................................4
2.6 Mounng.................................................................................4
2.7 Cerficaon nameplates..........................................................4
2.8 IP Protecon and designaon..................................................5
2.9 Cable connecon.....................................................................5
2.10 Grounding................................................................................5
2.11 Protecve grounding...............................................................5
2.12 General guidelines...................................................................5
2.13 Flame-proof / explosion-proof installaons............................5
2.13.1 Installaon requirements........................................................5
3 Explosive Atmosphere markings................................................6
3.1 IECEx IS markings......................................................... 6
3.2 IECEx Flameproof markings......................................... 6
3.3 FM/ USHazLocmarkings........................................................7
3.4 CSA / CanadaHazLoc markings...............................................7
4 Safety informaon for inspecon and maintenance .................8
4.1 Personnel qualificaons..........................................................8
4.2 MT5X00AlarmLevels and Dangerous Undetected Failure
Rates Calculaon…………………………………………….………………..….8
4.3 Alarm Levels tobe Programmed in Logic Solver.……….………....8
4.4 Use of Crically Restricted (CR) Mode for Safety
Instrumented Systems Applicaons..…………………………………...8
4.5 Required tools..........................................................................8
4.6 Suggested proof tesng...........................................................9
4.7 Safety inspecon and test........................................................9
4.7.1 Sensor inspecon.....................................................................9
4.7.2 Transmier tesng...................................................................9
4.7.3 Output check............................................................................9
4.7.3.1Analog 4-20mA output.............................................................9
4.7.3.2HART output.............................................................................9
4.7.3.3Analog 4-20mA loop check.....................................................10
4.8 Verifyproper power-up of the transmier .............................10
4.9 Module replacement orupgrade............................................10
4.10 Rerement Date for MT5X00 as a Funconal Safety Device..10
6Cerficate for SIL 3 capability…………………………………...………….11
7Typicalwiring drawing……………………………………………...………….12
8Installaon drawings for intrinsic safe and typical wiring……..13

3
1 General
1.1 Introduction
This MT5000 series is comprised of the MT5000, MT5100 and
MT5200 models. This manual provides an overview of the safety
aspects that must be observed for the installation and operation of
the device.
1.2 Product description
The MT-series of level transmitters is a modular range of field
mounted, microprocessor-based electronic transmitters, utilizing
guided wave radar technology. Accurate and reliable measurement
of liquid, solids and slurry level is provided in even the most difficult
and hazardous industrial environments. The MT-series can be con-
figured to provide specific industrial output signals, according to
4–20 mA with HART digital communication as well as FOUNDATION
Fieldbus protocol. The MT-series consists ofthree models: MT5000
(total level measurement), MT5100(total level and interface measure-
ment) and MT5200 (total level measurement with ULD mode for low
dielectric applications).
1.3 General safety information
The device is constructed in accordance with international and local
regulations and is deemed to be operationally safe. Additionally, the
device is tested and shipped from the factory in perfect working
condition. The information contained within this safety manual, as
well as all applicable documentation and certification, must be ob-
served and adhered to in order to maintain the factory-deployed
condition throughout the MT-series period of operation.
Full compliance with the general safety requirements must be ob-
served during handling, installation, maintenance or operation of the
device. In addition to providing general information, the individual
sections within this manual contain descriptions, processes and/or
procedural instructions with specific safety information for that
corresponding action.
Only by observing all of the safety information can the user minimize
the risk of hazards to personnel and/or the environment. The provid-
ed instructions are intended as an overview only and do not contain
detailed information on all available models or every conceivable
scenario that may arise during setup, operation and/or maintenance
work. This document shall be used in conjunction with the opera-
tion/instructions manuals.
For additional information, or in the event of specific issues not cov-
ered within these operating instructions, please contact the manu-
facturer. ABB declares the contents of this manual are not part of
any prior or existing agreements, commitments or legal relation-
ships and are not intended to amend those that are already in place.
In addition, the user must observe all relevant safety regulations
regarding the installation and operation of electrical systems and
the relevant standards, regulations and guidelines concerning explo-
sion protection.
1.4 Information on WEEE Directive 2002/96/EC (Waste Electrical
and Electronic Equipment)
This product/solution is not subject to the WEEE Directive 2002/96/
EC or corresponding national laws (e.g., the ElektroG-Electrical and
Electronic Equipment Act-Germany). Dispose of the product/
solution at a specialized recycling facility. Municipal garbage collec-
tion points should not be used for this purpose.
According to WEEE Directive 2002/96/EC, only products that are
used in private applications may be disposed of at municipal
garbage facilities. Proper disposal prevents negative effects on
both individuals and the environment and also supports the re-
use of valuable raw materials. ABB can accept and dispose of
returns for a fee.
1.5 Pressure Equipment Directive (PED) (97/23/CE)
This product conforms to the EC directives listed in the device-
specific EC declaration of conformity. It is designed in accord-
ance with safe engineering practices to meet state of the art
safety requirements, has been tested and left the factory in a
condition in which they are safe to operate.
1.6 Use of instruction
2 Installation in Hazardous Locations
2.1 Explosives atmospheres installation
For installation requirements in Explosives Atmospheres applica-
tions refer to IEC 60079-14 and any local Safety or Electric Code
regulations mandatory in your area.
For specific conditions for safe use refer to section 3.0 of this
manual.
WARNING - Bodily injury. The device can be operated
at high levels of pressure and with aggressive media.
As a result, serious injury or significant property
damage may occur if this device is operated incor-
rectly.
DANGER - Serious damage to health / risk to life
This symbol in conjunction with the signal word
“DANGER” indicates an imminent electrical hazard.
Failure to observe this safety information will re-
sult in death or severe injury.
WARNING - Bodily injury This symbol in conjunc-
tion with the signal word “WARNING” indicates a
potentially dangerous situation. Failure to observe
this safety information may result in death or se-
vere injury.
CAUTION - Minor Injuries This symbol in conjunc-
tion with the signal word “CAUTION” indicates a
potentially dangerous situation. Failure to observe
this safety information may result in minor or
moderate injury. This symbol may also be used for
property damage warnings.
NOTICE - Property Damage This symbol indicates
a potentially damaging situation. Failure to ob-
serve this safety information may result in damage
to or destruction of the product and / or other
system components.
IMPORTANT (NOTE) This symbol indicates opera-
tor tips, useful information or important infor-
mation about the product or its further uses. The
signal word “IMPORTANT (NOTE)” does not indi-
cate a dangerous or harmful situation.

4
CAUTION -Minor injuries
Only qualified and authorized personnel are to be tasked
with the installation, electrical connection, commissioning and
maintenance of the transmitter. Qualified personnel are those
individuals who have experience in the installation, electrical con-
nection, commissioning and operation of the transmitter or simi-
lar devices and hold the necessary qualifications. These qualifica-
tions include:
— Training or instruction – authorization to operate and maintain
devices or systems according to safety engineering standards for
electrical circuits, high pressures and aggressive media
— Training or instruction in accordance with safety engineering
standards regarding maintenance and use of adequate safety
systems.
For reasons of safety, ABB recommends that only sufficiently
insulated tools, conforming to IEC EN 60900, be used.
Since the transmitter may form a link within a safety chain, it is
recommended that the device be replaced immediately if defects
are detected. In the event of use in a hazardous area, only non-
sparking tools shall be used.
2.2 Safety information for electrical installation
WARNING –Bodily Injury.
Electrical connections may only be established by
authorized personnel in accordance with the electri-
cal circuit diagrams. The electrical connection information in
the manual must be observed; otherwise, the application
protection type may be affected. Ground the measurement
system according to requirements.
2.3 Safety information for inspection and maintenance
Corrective maintenance work may be performed only by trained
personnel.
Before removing the device, depressurize the vessel and any
adjacent lines or containers.
Check whether hazardous materials have been used as measured
materials before opening the device. Residual amounts of haz-
ardous substances may still be present in the device and could
escape when the device is removed from the vessel
Within the scope of operator responsibility, check the following
as part of a regular inspection:
Pressure-bearing walls/lining of the level device
Measurement-related function
Leak-tightness
Wear (corrosion)
2.4 Operator liability
In instances where corrosive and / or abrasive materials are be-
ing measured, the user must check the level of resistance of all
parts that are coming into contact with these materials. ABB
offers guidance in the selection of material but does not accept
liability in performing this service. The user must strictly observe
the applicable national regulations with regards to installing,
functional testing, repairing and maintaining electrical devices.
2.5 Qualified personnel
Installing, commissioning and maintaining the device may be per-
formed only by trained personnel who are authorized by the plant
operator. These trained personnel must have read and understood
this manual and must comply with its instructions
2.6 Mounting
Read the following installation instructions carefully before pro-
ceeding. Failure to observe the warnings and instructions may
cause a malfunction or personal hazard. Before installing the trans-
mitter, ensure the device design meets the requirements of the
measurement point from both a measure technology and safety
point of view.
This applies in respect to:
Explosion-protection certification
Measuring range
Pressure
Temperature
Operating voltage
Check the suitability of the materials in regards to their resistance
to the media. This applies to the:
Gasket
Process connection and seals
Probe
End connection
In addition, the relevant directives, regulations, standards and acci-
dent prevention regulations must be observed. Measurement ac-
curacy is largely dependent on the correct installation of the level
transmitter and, if applicable, mounting arrangement. In instances
where it is possible, the measuring setup should be free from criti-
cal ambient conditions such as large variations in temperature,
vibrations or shocks.
2.7 Certification nameplates
Please refer to the 3.0 of this manual for details.
IMPORTANT
Read this manual thoroughly before using this equip-
ment. If you do not understand the content of this manual, con-
tact ABB service personnel.

5
2.8 IP Protection and designation
The housing for the MT-series transmitters is certified as con-
forming to protection type IP67 (according to IEC 60529) or Type
4X (according to NEMA 250).
2.9 Cable connection
The electrical connection is established via a cable entry, ½-4
NPT thread, or by M20 adapter.
2.11 Protective grounding
All transmitters are supplied with an external ground connection for
protective grounding. Wire this ground connection to a suitable earth
ground. For a transmitter measuring loop, an earth ground should
maintain a resistance of 5 ohms or less. Use a heavy-duty conductor, at
least 15 AWG / 1.6mm2 Ø.
IMPORTANT NOTE
With Category 3 transmitters for use in “Zone 2”, a
qualified cable gland for this type of protection must be in-
stalled by the customer (see the Hazardous Area Consideration
section). For transmitters with a flame-proof enclosure (Ex d)
type of protection, the housing cover must be secured using
the locking screw. The screw plug that may have been supplied
with the transmitter must be sealed at the plant using Molykote
DX. The installer assumes responsibility for any other type of
sealing medium used. Increased force is required to unscrew
the housing cover after an interval of several weeks. This is not
caused by the threads but is due to the type of gasket.
CAUTION
• The cable entry device shall comply with the require-
ments of EN 60079-0 and maintain IP 54 or better as required by
the installation conditions.
• Field wiring should be rated at least 10°C above the maximum
ambient temperature
2.10 Grounding
A terminal is available on both the outside of the housing and in
the plug for grounding (PE) the transmitter. Both terminals are
electrically connected to one another (see Figure 2-12).
Figure 2-12 — Ground connection on transmitter housing
Ground
Screw
WARNING – General Risks.
A protective grounding connection is absolutely
necessary to ensure personnel protection, to protect
against surge (in case of installation of this option) and to pre-
vent explosions in potentially explosive environments.
2.12 General guidelines
WARNING
Make sure all circuits are de-energized prior to
installation.
The MT-series has been evaluated as an Installation (Over-
voltage) Category 1/Pollution Degree 2 apparatus, per IEC
61010
The maximum altitude of operation is 6560 feet (2000 me-
ters).
The MT-series is designed with both internal and external
protective earth (ground) terminals.
All field wiring connected to the MT-series transmitters must
comply with National Electric Code or any other applicable
regional electric codes.
2.13 Flame-proof/explosion-proof installations
2.13.1 Installation requirements
The MT-series of level transmitters is designed for use in Division 1
or at the boundary of a Zone 0 and Zone 1 hazardous area.
CAUTION
The flameproof joints of the equipment are not intend-
ed to be repaired. Consult the manufacturer if repair of the
flameproof joints is necessary.
CAUTION
• The cable entry device shall comply with the requirements of
EN 60079-0 and maintain IP 54 or better as required by the
installation conditions.
• Field wiring should be rated at least 10°C above the maximum ambi-
ent temperature
Cable or conduit entries must be fitted with a suitably certified cable
entry device, with or without the use of a suitably approved thread
adaptor. Where conduit is used in the installation, a conduit seal is
not required immediately after the end-user field wiring entrance.
Installation and use of apparatus in hazardous locations shall be in
accordance with an IEC 60079-14 or applicable regional standards.
CAUTION
The housing cover can only be removed when the unit
is installed in a non-hazardous area, when installed with intrinsic
safety barrier, or when power is removed from the transmitter.
WARNING –Bodily Injury.
General risks. Cable, cable gland and unused port
plug must be in accordance with the intended
type of protection (for example, intrinsically safe and explo-
sion-proof) and the degree of protection (for example, IP6x
according to IEC EN 60529 or NEMA 4x). See also the adden-
dum for Ex Safety Aspects and IP Protection. In particular, for
explosion-proof installation, remove the red, temporary plas-
tic cap and plug the unused opening with a plug certified for
explosion containment.

6
IECEx IS markings :
Ex ia IIB/IIC T4 Ga
Ex ia III C T80°C Da
Ex ic/ia IIB/IIC T4 Gc/Ga
Ex ic/ia III C T80°C Dc/Da
Ex ic IIB/IIC T4 Gc
Ex ic III C T80°C Dc
-40°C ≤Ta ≤66°C
IECEx ETL 17.0016X/00
3 Explosive atmosphere markings
3.1 IECEx IS ratings
IECEx XP markings :
Ex ia/db IIC T6 Ga/Gb
Ex ia ta IIIC T80°C Da
-40°C ≤Ta ≤66°C
IECEx ETL 17.0017X/00
3.2 IECEx Flameproof ratings
Conditions of Certification
(a) Special Conditions for safe use
When EPL Ga or Da is required (for example in Zone 0 or
Zone 20 hazardous areas), parts of the equipment contain-
ing light metals (Aluminum, Magnesium, Titanium and Zir-
conium) shall be protected from impact so that impact or
friction sparks cannot occur, taking into account rare mal-
function.
Where EPL Da is required, the equipment housing shall not
be subjected to uncontrolled dust layers.
For Group IIC models equipped with Fieldbus communica-
tion, for connection to a FISCO trunk, an additional current
limiting assembly, ABB part number 010-1000-2, shall be
fitted to the input terminals. Refer to ABB Instruction docu-
ment.
The cable entry device shall comply with the requirements of
IEC 60079-0 and maintain IP 54 or better.
(b). Conditions of Manufacture
Equipment with "ic / ia" intrinsic safety shall be fitted with
the MT Series Hermetic Seal Adapter.
Conditions of Certification
(a). Special Conditions for safe use
When EPL Ga or Da is required (for example in Zone 0 or
Zone 20 hazardous areas), parts of the equipment contain-
ing light metals (Aluminum, Titanium and Zirconium) shall
be protected from impact so that impact or friction sparks
cannot occur, taking into account rare malfunction.
Where EPL Da is required, the equipment housing shall not
be subjected to uncontrolled dust layers.
The cable entry device shall be appropriately lECEx certified
and maintain the appropriate level of ingress protection in
order to maintain the required ingress protection rating
according to the installation conditions.
Flamepath joints are not intended to be repaired.
(b). Conditions of Manufacture
The probe coupler shall be pressure tested at a pressure of
at least 328 psi for at least 10 seconds. There shall be no
leakage or permanent deformation.

7
Factory Mutual Research Corporation
MT50xx, MT51xx and MT52xx f/b abcdefghiFMjk :
XP-IS / I / 1 / ABCD / T6 Ta = 77°C;
DIP / II,III / 1 / EFG / T6 Ta = 77°C; Type 4X
IS / I / 1 / CD / T4 Ta = 77°C – ELE9020; Entity;
Type 4X
NI / I / 2 / ABCD / T4 Ta = 77°C;
S / II,III / 2 / FG / T4 Ta = 77°C; Type 4X
ANI / I / 2 / ABCD / T4 – ELE9020; Entity; Type 4X
MT51xx and MT52xx f/b abcdefghiFMjk :
XP-IS / I / 1 / ABCD / T6 Ta = 77ºC
DIP / II, III / 1 / EFG / T6 Ta = 77ºC
IS / I / 1 / ABCD / T4 Ta = 77ºC - ELE1034
NI / I / 2 / ABCD / T4 Ta = 77ºC
S / II,III / 2 / FG / T4 Ta = 77ºC
ANI / I / 2 / ABCD / T4 - ELE1034 Type 4X
3.3 FM / US HazLoc ratings 3.4 CSA / Canadian HazLoc ratings
Conditions of Certification
(a) Special Conditions for safe use
For guidance on Intrinsically Safe U.S. installations, see AN-
SI/ISA-RP12.06.01, Installation of Intrinsically Safe Systems
for Hazardous (Classified)Locations.
Installations shall comply with the manufacturer’s instruc-
tions, according to drawing ELE1034 or ELE9020 as applica-
ble.
Tampering and replacement with non-factory components
may adversely affect the safe use of the system.
Installations in the US shall comply with the relevant require-
ments of the National Electrical Code® (ANSI/NFPA-70
(NEC®).
(b). Conditions of Manufacture
The manufacturer shall supply copies of Control Drawing
ELE1034 & ELE9020 with each transmitter. The manufactur-
er shall make additional copies available upon request.
The manufacturer shall make any Special Conditions of Use
available to the user of the Product.
The manufacturer shall carry out verifications or tests nec-
essary to ensure that the electrical equipment produced
complies with the documentation.
Conditions of Certification
(a) Special Conditions for safe use
For explosion-proof and Division 2 models with the symbol
"[Ex ia]" and the words "Associated Equipment", always
open circuit before removing covers.
For Intrinsically Safe models with the symbol "[Ex ia]" and
the words "INTRINSICALLY SAFE", installations shall comply
with the installation instructions, according to drawing
ELE1034.
Caution: substitution of components may impair suitability
for use as I.S. or Div. 2.
Caution: do not disconnect equipment unless power has
been switched off or the area is known to be non-hazardous
Installations in Canada shall comply with the relevant re-
quirements of the Canadian Electrical Code® (CEC).
(b). Conditions of Manufacture
The manufacturer shall supply copies of Control Drawing
ELE1034 with each transmitter. The manufacturer shall
make additional copies available upon request.
The manufacturer shall make any Special Conditions of Use
available to the user of the Product.
The manufacturer shall carry out verifications or tests nec-
essary to ensure that the electrical equipment produced
complies with the documentation.
Canadian Standards Association
Model MT5000/5100/5200 Radar Level Transmitter
"[Ex ia] Associated Equipment"
« Explosion-proof with intrinsically safe antenna rod »
XP CL I, DIV 1, GP ABCD;
CL II,DIV 1, GP EFG; CL 3 - T6
CL I, DIV 2, GP ABCD;
CL II, DIV 2, GP EFG - T5
Maximum ambient = 77ºC.
MWP = 5000 psi max.
Enclosure Type 4X. Single Seal.
"[Ex ia] INTRINSICALLY SAFE"
«Intrinsically Safe Entity, when installed per ELE1034 »
IS CL I, DIV 1, GP CD;
CL II, DIV 1, GP EFG -T4
Maximum ambient = 77ºC.
MWP = 5000 psi max.
Enclosure Type 4X. Single Seal.

8
4 Safety information for inspection and
maintenance
Corrective maintenance work may be performed only by trained
personnel.
The MT5000 will operate normally without the need for periodic
maintenance or inspection. If the transmitter meets or exceeds
the requirements of the application, the transmitter can be ex-
pected to provide reliable level indication for a minimum of 10
years.
If the MT5000 transmitter is being used as part of a Safety Im-
plemented System (SIS), periodic testing will be required to
proof the transmitter and detect any potential failure which is
defined as Dangerous Undetectable in nor-mal operation. Proof
testing must be performed at regular intervals (2 years) and the
results of this testing must be documented. Should the trans-
mitter exhibit a fault during normal operation, it will be neces-
sary to perform the proof testing regardless of schedule. As part
of the testing documentation, all parameters included in the
menu structure of the transmitter (see page 10) as well as the
configuration of the module jumpers (see page 9) must be rec-
orded. The transmitter is capable of supplying (1) 4-20mA out-
put. If a transmitter is equipped with more than one indication,
only the process variable selected by the PV= menu option will be
considered as a safety function as this selected variable will be
the basis for the 4-20mA output. The MT5000 transmitter may
only be used in a safety-related system when the mode of that
system is low demand. As a device, the MT5000 transmitter will
be used to provide a level measurement to prevent overfill and
dry run of a vessel.
If a transmitter fails an inspection or assistance is required for
inspection or troubleshooting, contact the Service Department
at ABB via e-mail at servic[email protected]om. The Service Depart-
ment will answer questions, provide additional assistance, and
issue Return Authorization Numbers for equipment in need of
repair.
CAUTION: In the event a guided wave radar transmitter has suf-
fered a failure in any component which is exposed to the pro-
cess, any other guided wave radar transmitter installed in the
same or similar process should be inspected for the same failure
regardless of its maintenance schedule. These Common Cause
Failures include: 1) Damage to the high frequency coupler, 2)
damage to the electronics module, 3) deformation of the sensor
probe due to process agitation.
Notes on usage in Safety Instrumented Systems:
1) The MT5000 performs internal diagnostics at a maximum
interval of 15 minutes.
2) The MT5000 will provide annunciation of a diagnostic failure in
less than 15 minutes of the occurrence.
3) The failure ofany internal diagnostics will result in noti-
fication of the faultby setting of diagnostic bits in HART
protocol output.
4) All MT5000 FMEDA analysis is based on using a safety
accuracy of 2%.
5) The internal diagnostics aredesigned toachieve a Safe
Failure Fraction of 90%minimum.
6) The target average probability of failure on demand is less
than 1.5 x 10-3.
7) MT5000 transmitters are qualified for use in a SIS only when
the output used for the safety function is the 4–20 mA output.
8) If MT5000 transmitters equipped with HART are used in a SIS,
they must be fitted with a 4–20 mA output HART Protocol/M7A
or M7B and running software version 090414.00.001 Electronic
Module or higher.
4.1 Personnel Qualifications
Safety Inspection, Maintenance and Troubleshooting should only
be performed by qualified personnel. These qualifications in-
clude a knowledge of the information in this instruction manual,
knowledge of the product and its operating principles,
knowledge of the application in which the transmitter is being
applied, and general experience as an Instrument Technician.
Before, during and after performing Safety Inspection, Mainte-
nance or Troubleshooting it will be necessary to observe and
adhere to any safety standards, practices or requirements de-
fined in the policies of the end user.
4.2 MT5X00 Alarm Levels and Dangerous Undetected Failure
Rates Calculation
The MT5X00 Dangerous Undetected (DU) failure rates calcula-
tion are based on the choice of either 3.61 mA or 21 mA alarm
current levels, depending on the user’s preference. The value
should be selected on the basis of which reflects the direction
the output signal would tend toward when a trip is required.
4.3 Alarm Levels to be Programmed in Logic Solver
It is strongly recommended to the user that the Safety PLC soft-
ware should be configured to detect fail-low (e.g. ≤4 mA) and fail
-high (e.g. ≥20 mA) inputs as an alarm value and possibly as re-
quiring a trip, in addition to the explicit use of 3.61 mA or 21 mA
(the selected output value when the diagnostics detect a failure).
This precaution allows the user’s PLC to detect failures such as
open and short circuits that cannot be detected by the MT5000
diagnostics. The corresponding failure rates this detects are 68
FITs and 73 FITs respectively.
4.4 Use of Critically Restricted (CR) Mode for Safety
Instrumented Systems Applications
The HART version of the MT5100 has an operation mode for level
and interface measurements which is named the Critically Re-
stricted mode. This mode is only accessible through a HART
command on the MT5100 in the “Extended Setup/Advanced
Setup/CR Read Mode” menu.
The Critically Restricted (CR) mode shall not be used in a Safety
Instrumented System.
4.5 Required Tools
The following tools may be required to perform inspection,
maintenance or troubleshooting of the MT5000 transmitter.
-Crescent Wrenches or box end wrenches
- Screwdrivers
-Hex Key Wrenches
-Calibrated Digital Multi-meter
-Tape Measure

9
In instances where corrosive and / or abrasive materials are be-
ing measured, the user must check the level of resistance of all
parts that are coming into contact with these materials. ABB
offers guidance in the selection of material but does not accept
liability in performing this service. The user must strictly observe
the applicable national regulations with regards to installing,
functional testing, repairing and maintaining electrical devices.
4.6 Suggested Proof Test
The suggested proof test consists of minimum and maximum
current capability test followed by a two-point calibration of the
transmitter, see the suggested proof test Table. This test will
detect > 99% of possible DU failures in the device.
4.7 Safety Inspection & Test
An MT5000 transmitter can be divided into three major compo-
nents, the sensor, the transmitter, and the output. All of these
components and their subcomponents should be evaluated dur-
ing each periodic inspection. This inspection (and possible re-
pair) should take less than 4 hours if the proper tools are made
available. Prior to inspection, the transmitter should be removed
from service following end user specified procedures regarding
lockout, tag out, wiring and cleaning. Once removed from ser-
vice, the MT5000 transmitter should be laid on a flat even sur-
face.
4.7.1 Sensor Inspection
The rod or cable assembly should not be damaged or corroded in any
way. Additionally, it should not be touching any of the surrounding
tank or chamber surfaces in the measurement range.
4.7.2 Transmitter Testing
The transmitter of the MT5000 is designed to return a level indica-
tion and an output based on a dielectric constant change between
the upper fluid or vapor and the lower fluid. If the transmitter is
equipped with an LCD the level and output will be displayed on the
front of the electronics module.
1) Apply power to the transmitter using the typical power setup for
the particular option.
2) Move a high dielectric object such as a metal target plate up and
down the sensor.
3) Monitor the indication of the level on the LCD to make sure the
indication corresponds to the target position.
4) Make sure the transmitter responds with an Alarm Indication
(based on the jumper position) and a corresponding level indication
based on your setup (HIGH = 21.00 mA, LOW = 3.61 mA)
Note: It is possible for the MT5000 to continue providing a 4-20mA
output if the LCD display is not functioning properly. If the LCD indi-
cator on an electronics module fails to operate, it is recommended
that the electronics module be replaced at the earliest convenience. It
will not be necessary however to shut down a transmitter or remove
it from service based on an LCD failure.
4.7.3 Output Checkout
The MT5000 can be equipped to provide level indication through the
4-20mA output, HART communications and Foundation Fieldbus.
Only transmitters that are specified to output 4-20mA may be used
in a Safety Implemented System. The HART communication capabil-
ity of the 4-20mA transmitter will only be used for configuration and
proof testing.
4.7.3.1 Analog 4-20mA Output
The current output of the MT5000 transmitter update at least every
110 milliseconds and be filtered through the user adjusted Damping.
The maximum response time to a process change will be less than
110 milliseconds or the value of the Damping, whichever is greater.
1. Apply power to the transmitter using the typical loop wiring diagram.
2. Connect a multi-meter (set to read milliamps) to the transmitter
using the Meter  connections on the terminal strip.
3. Move a high dielectric object such as a target plate along the
length of the probe and monitor the milliamp output on multi-meter .
4. The output should indicate the target position based on the cali-
bration range of the transmitter.
4.7.3.2 HART Output
1. Apply power to the transmitter using the typical loop wiring diagram.
2. Connect a HART handheld device across a 250 ohm resistor in se-
ries with the loop.
3. Move the target along the length of the probe and monitor the PV
indication on the handheld device.
4. The output should indicate the target position based on the cali-
bration range of the transmitter.
Note: A HART handheld device will communicate with the MT trans-
mitter. The Device Descriptors are available on the ABB website. If
the output of the transmitter becomes latched, the HART handheld
will respond with a warning that the Process Variable is out of range.
To overcome the error, press OK when prompted to ignore the next
50 occurrences.
MT5000Suggested Proof Test Table
1. Bypass the safety function in the control system and take
appropriate action to avoid a false trip.
2. Use HART communications to retrieve any diagnostics and
take appropriate action.
3. Send a HART command to the transmitter to go to the high
alarm current output and verify that the analog current
reaches that value.*
4. Send a HART command to the transmitter to go to the low
alarm current output and verify that the analog current
reaches that value. **
5. Perform a two-point calibration*** of the transmitter over
the full working range.
6. Remove the bypass and otherwise restore normal opera-
tion.
Notes:
This tests for compliance voltage problems such as a low
loop power supply voltage or increased wiring resistance.
This also tests for other possible features.
** This tests for possible low current related failures.
*** If the two-point calibration is performed with electrical
instrumentation, this proof test will not detect any failures
of the sensor.

10
4.7.3.3 4–20mA Loop Check
Without HART
LOOP TEST is a function designed to simulate transmitter out-
put at various levels and confirm readings from a separate loca-
tion. The LOOP TEST may be performed at any mA OUTPUT be-
tween 3.61 and 21.00. To perform a LOOP TEST: 1. Press and hold
the SELECT button for 2 seconds. 2. Scroll UP or DOWN to select
each digit for the desired mA OUTPUT. 3. Press the SELECT but-
ton to set the digit and move to the next digit in sequence. 4.
After the last digit is set the mA OUTPUT will change to the de-
sired level. (Another mA OUTPUT may be selected by repeating
steps 1 through 4.) 5. Scroll DOWN to END MENU. (The mA OUT-
PUT will return to normal operation after pushing the DOWN
arrow) 6. Pressing the SELECT button now will return you to the
main screen.
With HART communications
With the transmitter installed, wired and powered in its field
location and power supplied to the loop, connect a HART
handheld device to the loop across a 250 ohm resistor. Using the
Loop Test feature of the HART handheld, drive the output of the
transmitter to 4mA and 20mA. Confirm the proper reading at the
indication or control side of the loop.
Minor adjustments to the output of the transmitter may be
made using the DAC Trim (Digital/Analog Convertor) feature.
During normal operation, it is not necessary to perform mainte-
nance on the MT5000 transmitter. Routine calibration of the
transmitter is not necessary. The MT5000 contains an EPROM
which will store calibration in case of an out-age or electronics
replacement.
4.8 Verify Proper Power-up of the Transmitter
Use a mA meter to measure the output current. When power is
applied, the output should go to 4.00 mA for at least 1 second,
and then to either the measured level or an alarm condition out-
put. If this does not happen, the transmitter may not be receiv-
ing enough power, or the main electronic is defective. Excessive
current above 21 mA is also an indication of improper power-up
or defective electronics.
4.9 Module Replacement or Upgrade
The MT5000 transmitter is equipped with modular electronics
which may be removed from the housing. An EPROM located in
the transmitter housing will maintain the settings of the trans-
mitter if the electronics are removed. This al-lows the replace-
ment of failed electronic modules and upgrading of electronics
or transmitter software without loosing calibration and setup
configuration.
Before removing the electronics module for replacement or up-
grade, the MT5000 transmitter should be taken out of service. To
remove the electronics module, simply loosen the 2 mounting
screws, unplugging the module from the housing and replace it
with the new module.
The software revision of a transmitter can be identified by a tag
on the back of the electronics module. The date code of the soft-
ware revision will appear as a series of numbers such as MT
090414.00.001. The type of module will be identified on the same
tag with a code such as M7A-MT5 or M7B-MT5.
4.10 Retirement Date for MT5X00 as a Functional Safety Device
MT5X00 instruments shall not be used in a Safety Instrumented
Function (SIF) after December 31st, 2022. After this date, MT5X00
instruments can only be used in applications where IEC 61508
functional safety rating is not required.

11
6 Certificate for SIL 3 Capable
The latest version of this certificate can be found on the web site at https://library.abb.com/ and searching for certificate Exida (SIL) ABB
16-12-C118 C001 MT5000 Series
IMPORTANT NOTE
The user is responsible of verifying that current failure rates shown on the certificate meet the Safety Instrumented Function (SIF).

12
7 Typical Wiring Drawing

13
8 Installation Drawings for Intrinsic Safety & Standard Wiring
Reference ABBdrawingELE9021MT5000Series, Intrinsically Safe Electrical Interconnection Diagram.

14
8 Installation Drawings for Intrinsic Safety & Standard Wiring
Reference ABBdrawingELE1034MT5000Series, FM & CSA Intrinsically Safe Electrical Interconnection Diagram.

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© ABB Inc., 2021
SM/MT5000-EN Rev. C 07.2021