Emerson MSP422 User manual

Emerson MSP422 User manual
Reference Manual
IP2013, Rev BA
February 2012
Mobrey MSP422
Ultrasonic Liquid Level Transmitter
www.mobrey.com
Mobrey MSP422
Reference Manual
Rev BA , Rev BA
February 2012
Mobrey MSP422
Mobrey MSP422 Ultrasonic
Liquid Level Transmitter
NOTICE
Read this manual before working with the product. For personal and system safety, and for
optimum product performance, make sure you thoroughly understand the contents before
installing, using, or maintaining this product.
The products described in this document are NOT designed for nuclear-qualified
applications.
This device complies with part 15 of the FCC rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired
operation.
www.mobrey.com
Reference Manual
Rev BA , Rev BA
February 2012
Mobrey MSP422
Table of Contents
SECTION 1
Introduction
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Manual Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Product Recycling/Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
SECTION 2
Transmitter Overview
Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Components of the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
SECTION 3
Installation
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Before You Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Mounting Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Liquid Surface Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
In-tank Effects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Mounting the Transmitter Above the Liquid Surface . . . . . . . . . . . 3-5
Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Cabling the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
After Completing the Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Lightning / Surge Protection and Other Loop Devices . . . . . . . . . . 3-8
SECTION 4
Starting up
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Before Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
MSP422 Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Programming The MSP422 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Display Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
First Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Setting the Bottom Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Setting 4 mA and 20 mA Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Setting the Output Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Selecting the Action on Alarm Condition . . . . . . . . . . . . . . . . . . . . 4-8
Setting 4 mA and 20 mA Levels Using Ranging. . . . . . . . . . . . . . . 4-9
Learn About Echoes From False Targets. . . . . . . . . . . . . . . . . . . 4-10
Final Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Power Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
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Reference Manual
Mobrey MSP422
IP2013, Rev BA
February 2012
SECTION 5
Service and
Troubleshooting
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Diagnostics for The MSP422 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
General Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
APPENDIX A
Reference Data
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Temperature and Pressure Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Load Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Dimension Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
APPENDIX B
Product Certifications
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Manufacturing Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
European Union Directive Information. . . . . . . . . . . . . . . . . . . . . . . . . B-2
Non-hazardous Location Certifications . . . . . . . . . . . . . . . . . . . . . . . . B-2
American and Canadian Certifications . . . . . . . . . . . . . . . . . . . . . . B-2
TOC--2
Reference Manual
IP2013, Rev BA
February 2012
Section 1
Mobrey MSP422
Introduction
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1
Manual Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-2
Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-2
SAFETY MESSAGES
Procedures and instructions in this manual may require special precautions to
ensure the safety of the personnel performing the operations. Information that
raises potential safety issues is indicated by a warning symbol ( ). Refer to
the safety messages listed at the beginning of each section before performing
an operation preceded by this symbol.
Failure to follow these installation guidelines could result in death or serious
injury.
•
Make sure only qualified personnel perform the installation.
•
Use the equipment only as specified in this manual. Failure to do so may
impair the protection provided by the equipment.
Explosions could result in death or serious injury.
•
The Mobrey MSP422 is only for use in a non-hazardous location
Electrical shock could cause death or serious injury.
•
Use extreme caution when making contact with the leads and terminals.
Any substitution of non-recognized parts may jeopardize safety. Repair, e.g. substitution
of components etc., may also jeopardize safety and is under no circumstances allowed.
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Reference Manual
IP2013, Rev BA
February 2012
Mobrey MSP422
MANUAL OVERVIEW
This manual provides installation, configuration, and maintenance information
for the Mobrey MSP422 ultrasonic level transmitter.
Section 2: Transmitter Overview
Section 3: Installation
Section 4: Starting up
Section 5: Service and Troubleshooting
Appendix A: Reference Data
Appendix B: Product Certifications
CUSTOMER SUPPORT
For the latest customer support information, visit www.mobrey.com, and then
click on the quick links Mobrey Service or Product Support.
Individuals who handle products exposed to a hazardous substance can avoid injury if they
are informed of, and understand, the hazard. If the product being returned was exposed to a
hazardous substance as defined by OSHA, a copy of the required Material Safety Data
Sheet (MSDS) for each hazardous substance identified must be included with the returned
goods.
PRODUCT
RECYCLING/DISPOSAL
1-2
Recycling of equipment and packaging should be taken into consideration.
The product and packaging should be disposed of in accordance with local
and national legislation.
Reference Manual
IP2013, Rev BA
February 2012
Section 2
Mobrey MSP422
Transmitter Overview
Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1
Components of the Transmitter . . . . . . . . . . . . . . . . . . . . page 2-2
THEORY OF OPERATION
The Mobrey MSP422 ultrasonic level transmitter is designed to be mounted
above a liquid and uses ultrasonic pulses to continuously measure the
distance to the liquid surface. The microprocessor-controlled electronics
measures the time delay between the transmitting and the receiving of the
reflected signals to calculate the distance (Figure 2-1).
When programmed with the bottom reference of the application – usually the
bottom of a tank – the MSP422 computes the liquid depth (level) and outputs
a 4–20 mA signal proportional to that level.
An LCD screen inside the enclosure displays the selected measurement.
Programming of the MSP422 is achieved using the integral push-buttons
inside the enclosure and the menu system shown on the LCD screen.
The MSP422 may be mounted in a non-hazardous areas only.
Level
Bottom Reference
Distance
Figure 2-1. Typical Application
Using a Mobrey MSP422
Transmitter
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Reference Manual
IP2013, Rev BA
February 2012
Mobrey MSP422
COMPONENTS OF THE
TRANSMITTER
The Mobrey MSP422 has a housing containing advanced electronics for
signal processing, and terminals for connecting the external power supply.
The electronics produces an ultrasonic signal from the transmitter face.
It is a two-wire, loop-powered transmitter; the two wires are used for both
24 Vdc power supply connections and the 4–20 mA analog output signal.
A two-core, shielded/screened cable is required (not supplied).
A comprehensive specification for the Mobrey MSP422 is in the section
“Specifications” on page A-1.
Figure 2-2. The Mobrey MSP
Series Transmitters
MSP422 FEATURES
Electronics
Housing
M20
Conduit
Thread
Supplied With:
1 x Cable Gland and Dust Cap
2-in. Mounting
Thread
Transmitter Face
2-2
Reference Manual
IP2013, Rev BA
February 2012
Section 3
Mobrey MSP422
Installation
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1
Before You Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-2
Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-3
Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-7
SAFETY MESSAGES
Procedures and instructions in this section may require special precautions to
ensure the safety of the personnel performing the operations. Information that
raises potential safety issues is indicated by a warning symbol ( ). Please
refer to the following safety messages before performing an operation
preceded by this symbol.
Explosions could result in death or serious injury:
•
The Mobrey MSP422 is only for use in a non-hazardous location
Failure to follow safe installation and servicing guidelines could result in death or
serious injury:
Make sure only qualified personnel perform the installation.
Use the equipment only as specified in this manual. Failure to do so may impair the
protection provided by the equipment.
Do not perform any service other than those contained in this manual unless you are
qualified.
Process leaks could result in death or serious injury.
Make sure that the transmitter is handled carefully.
High voltage that may be present on leads could cause electrical shock:
Avoid contact with leads and terminals.
Make sure the main power to the Mobrey MSP422 transmitter is off and the lines to any
other external power source are disconnected or not powered while wiring.
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Reference Manual
IP2013, Rev BA
February 2012
Mobrey MSP422
BEFORE YOU INSTALL
The MSP422 is used for level measurement.
The transmitter must be installed in a location where it is protected from
ultraviolet radiation to prevent long term degradation of the plastics used
e.g. shrouded from direct sunlight.
It is important to correctly position the transmitter for reliable ultrasonic level
measurement. For maximum accuracy and stability of the level measurement
reading, the transmitter should always be shrouded from direct sunlight and
radiated heat.
The transmitter may be site-tuned to deal with most application conditions, but
it is recommended that the following guidelines be adopted where relevant.
NOTE:
The Mobrey MSP422 is designed to be mounted in a non-metallic fitting or
flange. The use of metallic fittings/flanges is not recommended.
General Considerations
Guidelines:
a) Installation must be carried out by suitably trained personnel in
accordance with the applicable code of practice.
b) If the equipment is likely to come into contact with aggressive substances,
it is the responsibility of the user to take suitable precautions that prevent
it from being adversely affected, thus ensuring that the type of protection
is not compromised.
Aggressive Substances are acidic liquids or gases that may attack metals
or solvents that may affect polymeric materials.
Suitable Precautions are regular checks as part of routine inspections, or
establishing, from the material's datasheet, that it is resistant to specific
chemicals.
c) The equipment must only be cleaned with a damp cloth.
d) The equipment is not intended to be repaired by the user and is to be
replaced by an equivalent unit. Repairs should only be carried out by the
manufacturer or approved repairer.
e) The transmitter is Double Insulated, and therefore Protective Earthing is
not required.
f)
To maintain protection against the possible spread of fire, the supply to
the equipment must be limited to 3.75 Amps by a fuse or other means
g) Note that if the equipment is used in a manner not specified by the
manufacturer, the protection afforded by the equipment may be impaired.
h) The transmitter complies with the European Directive for Electro Magnetic
Compatibility (EMC) Class B. To ensure electro-magnetic compatibility in
any member state, it should not be installed in a residential area.
NOTE:
It is not advisable to mount the transmitter in close proximity to a source of
electrical noise such as a variable-speed drive, or other high-powered
electrical device.
3-2
Reference Manual
IP2013, Rev BA
February 2012
Mobrey MSP422
MECHANICAL
INSTALLATION
Mounting
Considerations
Guidelines:
a) The transmitter should be mounted above the liquid surface using the
2-inch thread provided, but not closer than 12 in. (0,3 m) to the surface.
The transmitter does not detect any liquid surface closer than
12 in. (0,3 m) to the transmitter face. (See "Mounting the Transmitter
Above the Liquid Surface" on page 3-5).
Optional flanges and bracket kits are available to help mounting.
b) The transmitter should be mounted vertically to ensure a good echo from
the liquid surface. The beam half angle of the transmitter is 6 degrees.
(See Figure 3-1 on page 3-4).
c) Obstructions in the tank, or well, may generate echoes which can be
confused with the real liquid surface echo. Obstructions within the beam
angle generate strong false echoes. Wherever possible, the transmitter
should be positioned to avoid false echoes.
d) To avoid detecting unwanted objects in the tank or well, it is advisable to
maintain a distance of at least 1.3 in. from the center line of the transmitter
for every foot (11 cm per meter) range to the obstruction.
e) No false echoes are generated if the transmitter is located near the side of
the tank or well, and the wall is smooth and free of protrusions. However,
there will still be a reduction in the echo size. It is recommended that the
transmitter be mounted no closer than 12 in. (0,3 m) to the wall to avoid a
large reduction in the echo size.
f)
If the transmitter is mounted in an enclosed tank with a domed top, avoid
mounting the transmitter in the center of the tank roof because this could
act as a parabolic reflector and create unwanted echoes.
g) Avoid applications where heavy condensation could form on the
transmitter face.
h) If the transmitter is mounted in a stand-off or nozzle, the transmitter face
should protrude at least 0.2 in. (5 mm) into the tank. If this is not possible,
see "Mounting the Transmitter Above the Liquid Surface" on page 3-5).
i)
If the transmitter is used in environments where direct sunlight can cause
high surface temperatures on exposed instruments, a sun-shade is
recommended.
3-3
Reference Manual
IP2013, Rev BA
February 2012
Mobrey MSP422
Figure 3-1. Min And Max
Distances From Tank Wall
Max. 3°
Use Non-metallic
Fitting / Flange
C
6° Beam
Half Angle
C =1.3 in./ft. (11 cm/m)
C Min. = 12 in. (0,3 m)
Liquid Surface
Conditions
Guidelines:
a) Foaming liquids can reduce the size of the returned echo because foam is
a poor ultrasonic reflector. Mount an ultrasonic transmitter over an area of
clear liquid, such as near the inlet to a tank or well. In extreme conditions,
or where this is not possible, the transmitter may be mounted in a vented
stilling tube provided that the inside measurement of the stilling tube is at
least 4 in. (100 mm) and is smooth and free from joints or protrusions. It is
important that the bottom of the stilling tube stays covered to prevent the
ingress of foams.
b) Avoid mounting the transmitter directly over any inlet stream.
In-tank Effects
Guidelines:
a) Stirrers or agitators can cause a vortex. Mount the transmitter off-center of
any vortex to maximize the return echo.
b) If stirrer blades become uncovered, they create echoes as they pass
through the ultrasonic beam. The transmitter can learn to ignore these
false echoes (see "Learn About Echoes From False Targets" on
page 4-10).
c) In tanks with rounded or conical bottoms, mount the transmitter off-center.
If needed, a perforated reflector plate can be installed on the tank bottom
directly under the transmitter center line to ensure a satisfactory return
echo.
d) Avoid detecting pump casings, as the liquid falls away, by not mounting
the transmitter directly above pumps. If this is not possible, fine-tuning of
the transmitter on-site may be required.
3-4
Reference Manual
IP2013, Rev BA
February 2012
Mounting the Transmitter
Above the Liquid Surface
Mobrey MSP422
A 2-in. thread is provided to mount the transmitter. The thread form is either
2-in. BSPT or 2-in. NPT, and is clearly marked on the hexagon of the
transmitter body.
NOTE:
The Mobrey MSP422 is designed to be mounted in a non-metallic fitting or
flange. The use of metallic fittings/flanges is not recommended.
To help installation, flange accessories and bracket kits are available from
Mobrey.
Procedure:
1. Ensure that the transmitter is perpendicular to the liquid surface to
maximize the return echo size.
2. Check that the maximum liquid level will not enter the 12-in. (0,3 m)
blanking zone of the transmitter.
3. When installing in a tank with a nozzle or stand-off
(Figure 3-2 on page 3-6):
a) Use PTFE tape on the screw thread (Figure 3-2 on page 3-6).
b) Lower transmitter into the tank through the process connection.
c) Turn the transmitter until it is properly secured in the process
connection (Figure 3-2 on page 3-6).
d) Tighten to a torque of 1.5 lbf.ft (2 Nm) using the hexagon. Do not use
the transmitter housing to tighten.
NOTE:
If the transmitter face does not protrude into the vessel, note the dimensions
in Table 3-1 for Figure 3-2, and ensure that the nozzle/vessel weld is smooth
and free from internal weld beads or other projections.
4. When installing using a bracket kit (Figure 3-3 on page 3-6):
a) Attach bracket to the disc using the 3 screws provided.
b) Attach bracket and disc to a support. The combined weight of bracket
and disc is 16 oz (0,5 kg). For transmitter weight, see "Specifications"
on page A-1.
c) Use PTFE tape on the screw thread of the transmitter
(Figure 3-2 on page 3-6).
d) Insert the transmitter into the disc.
e) Tighten to a torque of 1.5 lbf.ft (2 Nm) using the hexagon. Do not use
the transmitter housing to tighten.
NOTE:
The bracket kit contains a stainless steel angle bracket and PVC threaded
disc, which may be used to mount the transmitter on a support over the liquid
surface. The bracket and disc dimensions are in Figure A-4 on page A-4.
3-5
Reference Manual
IP2013, Rev BA
February 2012
Mobrey MSP422
Figure 3-2.
Mounting The Mobrey MSP422
Using A Nozzle/Stand-off
Use Non-metallic
Fitting / Flange
Tighten To A Torque Of 1.5 lbf.ft (2 Nm)
Using The Hexagon. Do Not Use The
Housing To Tighten
PTFE
L
D
NOTE:
If the transmitter face does not protrude into the vessel, note the dimensions
in Table 3-1 for Figure 3-2, and always ensure that the nozzle/vessel weld is
smooth and free from internal weld beads or other projections.
Table 3-1. Nozzle Diameter
Size (D) and Max Length (L)
Nozzle Diameter Size (D)
Maximum Nozzle Length (L)
DN50 (2 in.)
DN80 (3 in.)
DN100 (4 in.)
DN125 (5 in.)
4 in. (100 mm)
6.3 in. (160 mm)
6.3 in. (160 mm)
11.8 in. (300 mm)
Figure 3-3.
Mounting the Mobrey MSP422
Using a Bracket Kit
Stainless Steel Bracket
PVC Disc
No. 4X 13 Long Self Tap
Screw (3 Positions)
Carbon Steel (Zinc Plated)
Note: Combined weight of bracket
and disc is 16 oz (0,5 kg)
3-6
Reference Manual
IP2013, Rev BA
February 2012
Mobrey MSP422
ELECTRICAL
INSTALLATION
NOTE!
The MSP422 is not intrinsically safe certified, and is therefore for use in
non-hazardous (Ordinary Location) installations only.
Cabling the Transmitter
The Mobrey MSP422 is a two-wire, loop-powered transmitter requiring an
external 24 Vdc power supply. There is one M20x1.5 cable entry. A suitable
conduit system or cable gland must be used to keep the weather-proof rating.
To cable the transmitter:
1. Make sure that the power supply is switched off.
2. Remove the cover of the transmitter housing.
3. Pull the cable through the cable gland/conduit.
4. Wire the transmitter as shown in Figure 3-4.
5. Connect the cable screen (shield) to ground at one end only.
6. Replace the cover, tighten the cable gland.
Figure 3-4. MSP422 Wiring
0.15 to 0.31 in.
(Ø4 to 8 mm)
Twisted-pair, Screened
Min. 0.22 mm2 (24 SWG / 23 AWG)
Max. 1.5 mm2 (16 SWG / 18 AWG)
+12 to 30 Vdc
0 Vdc
Min. 12 Vdc
T1: 24 Vdc
T2: 0 Vdc
Max. 3000 m (9750 ft.)
After Completing the
Wiring
To maintain the weather-proof rating and hazardous area protection of the
transmitter, ensure all cable glands, blanking plugs, and seals are in good
condition.
Check that the cover seal is in good condition, and not twisted or misaligned
in the seal location groove. When replacing the cover, tighten the three cover
screws evenly to exert uniform pressure on the cover seal.
3-7
Reference Manual
Mobrey MSP422
Lightning / Surge
Protection and Other
Loop Devices
3-8
IP2013, Rev BA
February 2012
If the area is prone to lightning strikes or voltage surges, a suppressor device
may be installed between the transmitter and the control unit.
If an additional loop-powered device or separately powered device is included
in the two-wire loop, the transmitter must receive a minimum voltage of
12 Vdc at 21 mA loop current. (See "Load Limitations" on page A-2).
Reference Manual
IP2013, Rev BA
February 2012
Section 4
Mobrey MSP422
Starting up
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-2
Programming The MSP422 . . . . . . . . . . . . . . . . . . . . . . . . page 4-4
Final Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-11
Power Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-11
SAFETY MESSAGES
Procedures and instructions in this section may require special precautions to
ensure the safety of the personnel performing the operations. Information that
raises potential safety issues is indicated by a warning symbol ( ). Refer to
the safety messages listed at the beginning of each section before performing
an operation preceded by this symbol.
Explosions could result in death or serious injury:
•
The Mobrey MSP422 is only for use in a non-hazardous location
Failure to follow safe installation and servicing guidelines could result in death or
serious injury:
Make sure only qualified personnel perform the installation.
Use the equipment only as specified in this manual. Failure to do so may impair the
protection provided by the equipment.
Do not perform any service other than those contained in this manual unless you are
qualified.
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Reference Manual
Mobrey MSP422
OVERVIEW
IP2013, Rev BA
February 2012
The Mobrey MSP422 ultrasonic level transmitter is operated from a menu of
parameters, each held in a specific memory location within the transmitter.
The memory locations may be pictured as a matrix, and navigated for
programming the instrument using  and  steps.
The Integral Display Menu structure is shown in Figure 4-1 on page 4-3.
The transmitter is pre-programmed at the factory with a value in each
parameter location so that when the power is first applied, the transmitter
gives a sensible reading.
This section details the local programming using the push-buttons provided
inside the transmitter.
Power Up
When the power is turned on, the transmitter takes several seconds to
initialize. The display will run a set-up routine, first illuminating all display
characters, and then showing the software revision number. Finally, a full set
of zeros is displayed while the microprocessor identifies the correct return
echo. After these checks are complete, the display indicates the live
measurement based upon the factory default values in memory.
On a new instrument aimed at a good target, the transmitter calculates a level
reading based upon the default value for the bottom reference.
The transmitter is now ready to be set-up with details of the application.
The transmitter may be programmed prior to, or after, installation. All
programmed data is retained in the transmitter memory after the power is
turned off.
Before Programming
Important notes to help you program the transmitter:
a) Do not allow rain, or water, to enter the transmitter during programming or
the circuit boards may be damaged.
b) See the instructions below on how to use the push-buttons to navigate
through the programming menu and select or enter application data.
c) Push the buttons firmly, but not too hard, to avoid damaging the circuit
boards. Also, to avoid entering incorrect data, do not push the buttons too
fast.
d) Holding down the green button  scrolls through any option list.
e) Pressing the red button  at certain locations in the menu returns you to
the previous level in the menu (see Figure 4-1 on page 4-3).
Note, however, if the red button  is pressed after a menu option selection
has been made or new data has been entered (i.e. stopped flashing), this
option selection / new data will automatically be saved (see Figure 4-1).
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MSP422 Menu Map
Figure 4-1. MSP422 Menu Map
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PROGRAMMING
THE MSP422
Refer the Integral Display menu on a card tucked between the housing and
body, and in Figure 4-1 on page 4-3.
Display Units
The display units are indicated by the position of the decimal point in the
displayed PV value:
Units
Display
m
8.000
ft.
26.24
in.
314.9
Default values are as follows:
MSP422-B28: m
MSP422-N28: ft.
NOTE:
See Figure 4-1 on page 4-3 for a map of the programming menu structure
showing how to access all the menu options and return to the PV display.
To change the display units:
a) Start from the PV display (see the note above.)
b) Hold down the blue button  for 10 seconds, but do not release it yet.
c) The display units will then change according to the following sequence:
MSP422-B28: Metres to Feet, Feet to Inches, and Inches to Metres.
MSP422-N28: Feet to Inches, Inches to Metres, and Metres to Feet.
d) Continue to hold down the blue button  to change to the next display
unit in the above sequence after every three seconds.
e) Confirm the display units by releasing the blue button .
The same units must be used when programming in the bottom reference and
the 4 and 20 mA points.
The 4–20 mA output may be set to operate over all or just a part of the total
measuring range. There is no limit on the minimum span of the current output,
although a span below 4 in. (100 mm) is not recommended.
The 4 mA level may be set above or below the 20 mA level to suit the
monitoring or control equipment.
NOTE:
The MSP422 measures and calculates in metres. The display units are
derived as a last operation using a pre-programmed conversion factor.
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First Measurements
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With the transmitter installed and display units selected, the display will show
what the instrument calculates as the liquid depth (level). This value is
calculated by the microprocessor as being the difference between the
distance-to-target being measured and the default value for the datum or
bottom reference (b.rEF).
Figure 4-2. Bottom Reference
Distance-to-target
Bottom Reference
Depth (Level)
Before changing any of the default values, press the blue button  to change
the PV display to indicate distance-to-target, as measured by the transmitter
from the transmitter face. This value is shown alternately with the text “diSt”
to indicate the display is in distance mode. The calculation can be checked
against a manual measurement if required.
NOTE:
A useful feature at this stage is that the transmitter can be used as an
electronic tape measure. With an empty tank or vessel, the transmitter will
read the distance to the bottom of the tank. This distance can be noted and
later used when setting b.rEF.
Press the blue button  again to get to the echo size. This is a scale of 0 to
100. (It is possible to record a value greater than 100). With the display in this
mode, the central “:” cursor will flash once for every echo received, which
under normal circumstances will be once per second.
NOTE:
It is useful at this point to check that the maximum echo size available is being
received. Adjust the position of the instrument until the highest echo size is
continually shown. In most applications, the signal strength will vary over a
wide range: 20 to 80.
Press the blue button  again to return to the original level reading and start
the calibration routine.
NOTE:
The output of the transmitter will vary during programming, as the various
default values are changed. The display will automatically revert to the level
or distance reading from any other display after a period of four minutes.
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Setting the Bottom
Reference
Screen display:
Defaults:
b.rEF
8.000 (m), 26.24 (ft.), 314.9 (in.)
NOTE:
See Figure 4-1 on page 4-3 for a map of the programming menu structure and
how to access all the menu options.
To change the bottom reference (b.rEF) setting:
a) If entering the menu system from the PV display, press the green button 
to indicate the “b.rEF” menu option (see above note.)
b) Press the blue button  to enter the menu for b.rEF. The display
indicates the present b.rEF value.
c) If this value is correct, press the red button , and then press the green
button  to get to the next menu option.
d) Press the blue button  to start editing. The first digit flashes to indicate it
can be edited.
e) Press the green button  repeatedly to edit the flashing digit.
f) Press the blue button  to move to the next digit. The digit flashes to
indicate it can be edited.
g) Repeat steps (e) and (f) until the last digit is flashing, and edited as
required.
h) Press the blue button  to confirm the new b.rEF value. None of the
digits should now be flashing.
i) If the new value is correct, press the red button  to save. The display
changes to the next menu option.
j) If the new value is incorrect, press the blue button  to exit to the menu.
The “b.rEF” re-appears; re-start at step (b) or press  for the next menu.
Setting 4 mA and 20 mA
Levels
Screen display:
4mA level defaults:
20mA level defaults:
4 and 20
0.000 (m), 00.00 (ft.), 000.0 (in.)
7.500 (m), 24.60 (ft.), 295.2 (in.)
The 4 mA level may be set above, or below, the 20 mA level to suit the
monitoring or control equipment.
NOTE:
To set the 4 and 20 mA levels by ranging the transmitter to a fixed target, such
as the level in the tank at any particular time, skip these menu options by
pressing the green button  twice to get to the next menu option.
NOTE:
See Figure 4-1 on page 4-3 for a map of the programming menu structure and
how to access all the menu options.
To change the 4 mA value:
a) If entering the menu system from the PV display, press the green button 
repeatedly until the “4” menu option is indicated (see above note.)
b) Press the blue button  to enter the menu for the 4 mA level. The display
indicates the present value of the 4 mA level.
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c) If this value is correct, press the red button , and then press the green
button  to get to the next menu option.
d) Press the blue button  to start editing. The first digit will flash to indicate
it can be edited.
e) Press the green button  repeatedly to edit the flashing digit.
f) Press the blue button  to move to the next digit. The digit flashes to
indicate it can be edited.
g) Repeat steps (e) and (f) until the last digit is flashing, and edited as
required.
h) Press the blue button  to confirm the new 4 mA level. None of the digits
should now be flashing.
i) If the new value is correct, press the red button  to save. The display
changes to the next menu option.
j) If the new value is incorrect, press the blue button  to exit to the menu.
The “4” re-appears; re-start at step (b) or press  for the next menu.
NOTE:
See Figure 4-1 on page 4-3 for a map of the programming menu structure and
how to access all the menu options.
To change the 20 mA value:
a) If entering the menu system from the PV display, press the green button 
repeatedly until the “20” menu option is indicated (see above note.)
b) Press the blue button  to enter the menu for the 20 mA level. The
display indicates the present value of the 20 mA level.
c) If this value is correct, press the red button , and then press the green
button  to get to the next menu option.
d) Press the blue button  to start editing. The first digit flashes to indicate it
can be edited.
e) Press the green button  repeatedly to edit the flashing digit.
f) Press the blue button  to move to the next digit. The digit flashes to
indicate it can be edited.
g) Repeat steps (e) and (f) until the last digit is flashing, and edited as
required.
h) Press the blue button  to confirm the new 20 mA level. None of the digits
should now be flashing.
i) If the new value is correct, press the red button  to save. The display
changes to the next menu option.
j) If the new value is incorrect, press the blue button  to exit to the menu.
The “20” re-appears; re-start at step (b) or press  for the next menu.
Setting the Output
Damping
Screen display:
Default:
d
10
The damping value is a time constant in seconds, and is applied as smoothing
to the level reading and the output current. A new value may be entered up to
999 seconds. A larger value will have the effect of smoothing out rapid
changes of level, and smooth out the effects of turbulence and ripples on the
liquid surface. (It would be unusual to select a value greater than 30 seconds).
A value of zero may be edited, in which case no smoothing is applied to the
Current Output and transmitter readings immediately change the output.
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NOTE:
The MSP422 transmits nominally at once per second. Therefore, a damping
time of zero will not necessarily give an immediate response.
NOTE:
See Figure 4-1 on page 4-3 for a map of the programming menu structure and
how to access all the menu options.
To change the output damping:
a) If entering the menu system from the PV display, press the green button 
repeatedly until the “d” menu option is indicated (see above note.)
b) Press the blue button  to enter the menu “d”. The display indicates the
present damping value.
c) If this value is correct, press the red button  and then the green button to
get to the next menu option.
d) Press the blue button  to start editing. The first digit flashes to indicate it
can be edited.
e) Press the green button  repeatedly to edit the flashing digit.
f) Press the blue button  to select the next digit. The digit flashes to
indicate it can be edited.
g) Repeat steps (e) and (f) until the last digit is flashing, and edited as
required.
h) Press the blue button  to confirm the new damping value. None of the
digits should now be flashing.
i) If the new value is correct, press the red button  to save. The display
changes to the next menu option.
j) If the new value is incorrect, press the blue button  to exit to the menu.
The “d” re-appears; re-start at step (b) or press  for the next menu.
Selecting the Action on
Alarm Condition
Screen display:
Default:
AL
Hold
The transmitter signals an alarm condition if the target echo is lost for more
than 10 seconds.
There are three options for an alarm condition:
Hi
The current on the two-wire loop will increase to 21 mA and remain
there until a correct target echo is recovered. The display flashes
alternately “LE” and the alarm action.
Hold
The current will freeze at the value it was last reading and remain
there until a correct target echo is recovered. The display flashes
alternately “LE” and the last valid reading.
Lo
The current on the two wire loop will decrease to 3.6 mA and remain
there until a correct target echo is recovered. The display flashes
alternately “LE” and the alarm action.
NOTE:
See Figure 4-1 on page 4-3 for a map of the programming menu structure and
how to access all the menu options.
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To change from the default action of Hold:
a) If entering the menu system from the PV display, press the green button 
repeatedly until the “AL” menu option is indicated (see above note.)
b) Press the blue button  to enter the menu “AL”. The display indicates the
present action setting.
c) If this action is correct, press the red button  and then the green button to
get to the next menu option.
d) Press the blue button  to start editing. The action flashes to indicate it
can be edited.
e) Press the green button repeatedly to scroll through the actions.
f) Press the blue button  to confirm an action. The flashing then stops.
g) If the new action is correct, press the red button  to save. The display
changes to the next menu option.
h) If the new action is incorrect, press the blue button  to exit to the menu.
The “AL” re-appears; re-start at step (b) or press  for the next menu.
Setting 4 mA and 20 mA
Levels Using Ranging
Screen display:
S--4 and S-20
NOTE:
If the 4 and 20 mA levels are programmed as described above, this menu can
be skipped; it overwrites previously entered data for them. Press the
green button  to get to the final menu option, “Lrn”.
This is for setting the 4 mA or 20 mA levels by ranging the instrument to a
known target, e.g. the present level in a vessel.
NOTE:
See Figure 4-1 on page 4-3 for a map of the programming menu structure and
how to access all the menu options.
To change the 4 mA level:
a) If entering the menu system from the PV display, press the green button 
repeatedly until the “S--4” menu option is indicated (see above note.)
b) Ensure the target is the 4 mA level and, with the display indicating that
level, press the blue button .
c) The display indicates the present 4 mA level setting, not the new level
reading. If this setting is correct, press the red button  and then the green
button to get to the next menu option.
d) Press the blue button  to start editing. The display flashes alternately “4”
and the new level reading.
e) Press the blue button  to confirm the new level reading is the new 4 mA
level.
f) If the new 4 mA level is correct, press the red button  to save. The
display changes to the next menu option.
g) If the new 4 mA level is incorrect, press the blue button  to exit to the
menu. The menu option “S--4” re-appears; re-start at step (b) or press 
for the next menu option.
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NOTE:
See Figure 4-1 on page 4-3 for a map of the programming menu structure and
how to access all the menu options.
To change the 20 mA level:
a) If entering the menu system from the PV display, press the green button 
repeatedly until the “S-20” menu option is indicated (see above note.)
b) Ensure the target is the 20 mA level and, with the display indicating that
level, press the blue button .
c) The display indicates the present 20 mA level setting, not the new level
reading. If this value is correct, press the red button  and then the green
button to get to the next menu option.
d) Press the blue button  to start editing. The display flashes alternately
“20” and the new level reading.
e) Press the blue button  to confirm the new level reading is the new
20 mA level.
f) If the new 20 mA level is correct, press the red button  to save. The
display changes to the next menu option.
g) If the new 20 mA level is incorrect, press the blue button  to exit to the
menu. The menu option “S-20” re-appears; re-start at step (b) or press 
for the next menu option.
Learn About Echoes
From False Targets
The MSP422 has an easy-to-use “Lrn” (Learn) routine that allows the
instrument to learn up to two false echoes, which can then be ignored in
future operations.
If the application is simple and there are no false echoes, press the green
button  to exit the integral display menu and return the instrument to
indicating the level reading on the display.
If an echo other than the true liquid surface echo is detected and an incorrect
level reading is indicated, the instrument can learn to ignore this false echo.
The “Lrn” routine may be used at any time, either during or after setting-up or
if a problem occurs later.
NOTE:
See Figure 4-1 on page 4-3 for a map of the programming menu structure and
how to access all the menu options.
To store a false target echo:
a) If entering the menu system from the PV display, press the green button 
repeatedly until the “Lrn” menu option is indicated (see above note.)
b) Press the blue button  to enter the “Lrn” menu. The display indicates
“LrnX” where “X” (0, 1 or 2) is the number of stored false target echoes.
c) To exit to the menu at this stage, press the red button  and then the
green button to get to the next menu option.
d) To store a new false echo, hold the blue button down  for five seconds.
e) The display now alternately flashes “Lrn” and the false target position.
After four seconds, the false echo target position is stored and the display
re-indicates “LrnX” alternating with the distance to the stored echo.
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f)
Press the red button  to save this false echo and exit to the menu.
However, if this false echo shouldn't be saved, press the blue button to
exit to the menu.
g) To store another false target echo, re-start from step (b).
h) Press the green button to exit the menu and return to the PV display.
NOTE:
If there are two false echoes stored (“Lrn2”), the transmitter will not allow
another echo to be stored until the memory is cleared (see next procedure.)
NOTE:
When a false echo is stored, the transmitter sets up a 'window' around the
false target and ignores any echo from that window, unless the echo received
from the liquid surface is larger than the stored false echo. There may be no
change in the transmitter output current while the liquid level moves through
this window, which is equivalent to a distance of 8 in. (20 cm).
NOTE:
See Figure 4-1 on page 4-3 for a map of the programming menu structure and
how to access all the menu options.
To clear all the stored false echoes:
a) If entering the menu system from the PV display, press the green button 
repeatedly until the “Lrn” menu option is indicated (see above note.)
b) Press the blue button  to enter the “Lrn” menu.
c) With the display indicating “LrnX”, press and hold the green button  for
ten seconds to clear the memory. The display then indicates “Lrn0”.
d) Press the red button to exit to the menu.
e) Press the green button to exit the menu system and change to the
PV display.
FINAL CHECKS
Final checks:
a) Check the display is reading correctly.
b) You may wish to check echo size again before re-fitting the enclosure lid.
c) Check that the cover seal is in place in the cover, and is good condition. It
should not be twisted or kinked in any way.
d) Carefully set the cover on the transmitter, and tighten the three cover
screws equally to seal the instrument.
e) Check that the cable gland is securely tightened and check sealing on the
cable sheath.
POWER FAILURE
All parameters are held in EPROM memory. In the event of a power failure, or
disconnection from the power supply, the transmitter will remember all of it's
last parameter values and will resume correct operation once power is
restored.
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Section 5
Mobrey MSP422
Service and Troubleshooting
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-1
Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-2
Diagnostics for The MSP422 . . . . . . . . . . . . . . . . . . . . . . . page 5-2
SAFETY MESSAGES
Procedures and instructions in this section may require special precautions to
ensure the safety of the personnel performing the operations. Information that
raises potential safety issues is indicated by a warning symbol ( ). Please
refer to the following safety messages before performing an operation
preceded by this symbol.
.
Explosions could result in death or serious injury.
•
The Mobrey MSP422 is only for use in a non-hazardous location
Failure to follow safe installation and servicing guidelines could result in death or
serious injury.
Make sure only qualified personnel perform the installation.
Use the equipment only as specified in this manual. Failure to do so may impair the
protection provided by the equipment.
Do not perform any service other than those contained in this manual unless you are
qualified.
High voltage that may be present on leads could cause electrical shock.
Avoid contact with leads and terminals.
Make sure the main power to the Mobrey MSP422 transmitter is off, and the lines to any
other external power source are disconnected or not powered while wiring
the transmitter.
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SERVICING
The only maintenance required is to occasionally check the transmitter face to
ensure it remains clean and check that the cover seal, wiring, and cable
glands are in good condition.
There are no spare parts for the Mobrey MSP422. If a problem persists,
contact Mobrey Measurement for advice.
DIAGNOSTICS FOR
THE MSP422
General
Troubleshooting
No Display
Check the power supply. Ensure there is a minimum of 12 Vdc at the
instrument terminals. Check that the cable insulation is not preventing contact
at the terminal block.
No Level Reading
Check that the instrument is ticking about once per second. If there is no
ticking, the instrument should be replaced.
Error Messages
Flashing “LE” With “0000”
The transmitter is not receiving a return echo, which could mean the liquid
surface is poor or that it is beyond the range of 26 ft. (8 m) of the instrument.
Change the position of the transmitter or contact Mobrey Measurement for
information on longer range instruments
This means that the transmitter is not receiving a return echo, possibly
because the liquid surface is poor or beyond the range (26 ft./8 m) of the
instrument. Re-locate the instrument or contact Mobrey Measurement for
details of longer range instruments.
Flashing “LE” With Level Reading
This means that the transmitter is no longer receiving satisfactory echoes
from the liquid surface. This may be because of one of a variety of reasons,
for example, excessive foaming, turbulence, or ullage vapors.
First, check that the transmitter face is free from contamination and
condensation. The transmitter will operate with some condensation on the
face, but excessive condensation may cause operational problems. If the
vessel cannot be adequately vented to prevent condensation forming, contact
Mobrey Measurement for alternative solutions.
Second, check that the instrument is still vertically aligned above the liquid
surface and check the echo received size. If the echo size is small (<3),
re-position the transmitter or modify the vessel for the transmitter to operate
above a more acceptable area of the liquid surface.
Lost echo (LE) is signalled when there has been no return echo for 10
seconds. Within the 10 seconds, the output will remain fixed. If, after the 10
seconds, no satisfactory has been received, the output will increase to the
current selected level and the display flashes alternately “LE” and the last
valid level reading.
If a satisfactory echo is received within the 10 seconds, a new output is
established and the LE timer is re-set.
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Appendix A
Reference Data
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-1
Temperature and Pressure Ratings . . . . . . . . . . . . . . . . . page A-2
Load Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-2
Dimension Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-3
SPECIFICATIONS
General
Product
Mobrey MSP Series Ultrasonic Level Transmitters:
Level and Distance measurement
Measurement Principle
Ultrasonic, time-of-flight
Measuring Performance
Measurement Range
1 to 26 ft. (0,3 to 8 m)
Level Resolution
Better than 0.06 in. (1 mm)
Level Accuracy
Under Reference Conditions(1)
± 0.2 in. (5 mm) for < 3.3 ft. (1 m),
± 0.5% of measured distance for > 3.3 ft. (1 m)
Blanking Distance (Dead Zone)
12 in. (0,3 m)
Display: 500 ms; Current Output: 200 ms
Update Interval
Display / Configuration
Integral Display
4 digit display for live measurement and for configuration purposes
Display Units
m, ft, or in,
Output
Level
Output Units
Set by Display Units selection
Configuration Tools
Standard integral push-buttons with LCD
Electrical
External Power Supply
12 to 30 Vdc Loop-powered (two-wire)
Earthing
None required
Current Output
Signal On Alarm
Analog 4–20 mA
Low = 3.6 mA. High = 21 mA
Saturation Levels
Low = 3.8 mA. High = 20.5 mA
Cable Entry
M20 x 1.5 conduit entry for a cable gland
Output Cabling
Single twisted-pair and shielded, min. 0,22 mm2 (24 AWG), max. 1,5 mm2 (15 AWG)
Materials of Construction
Wet-side Material
PVDF
Body And Cover Material
Glass-filled Nylon
Cover Seal
Silicone rubber
Cover Screws
316 Stainless Steel
Transducer Body Seal
EPDM
Mechanical
Mounting Thread Size
Weight of Transmitter
2-in. NPT, or 2-in. BSP. Optional flange accessories available
2.0 lb (0,9 kg)
Measuring
Temperature Compensation
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Automatic Integral temperature compensation
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Environment
Ambient Temperature(2)
–4 to 158 °F (–20 to 70 °C)
Process Temperature
–4 to 158 °F (–20 to 70 °C)
Process Pressure
–4 to 44 psi (–0,25 to 3,0 bar)
Ingress Protection
IP 66
Electromagnetic Compatibility
EN61326 (Class B)
Certifications
CE-mark
(1) Temperature: 68 °F (20 °C), Pressure: 1013 mbar (atmospheric pressure), and Relative Humidity: 50%.
(2) See page A-2 onwards for approval temperature ranges.
TEMPERATURE AND
PRESSURE RATINGS
The process temperature/pressure rating depends on the design of the
transmitter in combination with the flange materials.
Figure A-1.
Process Temperature and
Pressure Diagram
Pressure
psi (bar)
44 psi
(3 bar)
OPERATING RANGE
The final rating may be limited by
flange selection
Temperature
-4 psi
(-0,25 bar)
°F (°C)
-4 °F (-20 °C)
LOAD LIMITATIONS
158 °F
(70 °C)
The maximum load resistance can be determined from Figure A-2.
Figure A-2. Load Limitations
R (Ohms)
1244
NOTE
R = Maximum Load Resistance
U = External Power Supply Voltage
533
800
400
0
U (V)
24
0
A-2
12
20
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DIMENSION DRAWINGS
Figure A-3. Transmitter Dimensions (Nylon-filled Glass Housing)
Note: Dimensions are in inches (mm)
Ø5.7 (Ø144)
M20 x 1.5
Cable Entry
5.3
(135)
MSP422
2.36 (60) A/F Hexagon
2-in. Thread
2.6
(65)
A-3
Reference Manual
IP2013, Rev BA
February 2012
Mobrey MSP422
Figure A-4. The 2-in. NPT/BSPT mounting bracket
Note: Dimensions are in inches (mm)
Note: The combined weight of
bracket and disc is 16 oz. (0,5 kg)
2-in. NPT/BSPT
Threaded PVC Disc
0.51
(13)
Stainless Steel Bracket
SIDE VIEW
4.33
(110)
0.35
(9)
2.26
(57)
Ø
(Ø 1.0
26 2
)
2.95
(75)
)
,5
(6 .
26 P
0 . TY
END VIEW
1.5
(38)
2.24
(57)
No. 4X 13 Long Self Tap
Screw (3 Positions)
Carbon Steel (Zinc Plated)
4.02
(102)
ACTUAL VIEW WITH
TRANSMITTER MOUNTED
A-4
Reference Manual
IP2013, Rev BA
February 2012
Appendix B
Mobrey MSP422
Product Certifications
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page B-1
Manufacturing Location . . . . . . . . . . . . . . . . . . . . . . . . . . . page B-2
European Union Directive Information . . . . . . . . . . . . . . . page B-2
Non-hazardous Location Certifications . . . . . . . . . . . . . . page B-2
SAFETY MESSAGES
Procedures and instructions in this section may require special precautions to
ensure the safety of the personnel performing the operations. Information that
raises potential safety issues is indicated by a warning symbol ( ). Please
refer to the following safety messages before performing an operation
preceded by this symbol.
Explosions could result in death or serious injury:
The Mobrey MSP422 is only for use in a non-hazardous location
Failure to follow safe installation and servicing guidelines could result in death or
serious injury:
Make sure the transmitter is installed by qualified personnel and in accordance with
applicable code of practice.
Use the equipment only as specified in this manual. Failure to do so may impair the
protection provided by the equipment.
Do not perform any service other than those contained in this manual unless you are
qualified.
High voltage that may be present on leads could cause electrical shock:
Avoid contact with leads and terminals.
Make sure the main power to the transmitter is off and the lines to any other external
power source are disconnected or not powered while wiring the transmitter.
www.mobrey.com
Reference Manual
IP2013, Rev BA
February 2012
Mobrey MSP422
MANUFACTURING
LOCATION
Mobrey Limited – Slough, Berkshire, United Kingdom
EUROPEAN UNION
DIRECTIVE
INFORMATION
NOTE:
Refer to the housing label to identify the approvals for your transmitter. The
EC declaration of conformity for all applicable European directives for this
product can be obtained by contacting our local sales representative.
Pressure Equipment Directive (PED) (97/23/EC)
•
The MSP422 is outside the scope of the PED Directive
Electro Magnetic Compatibility (EMC) (2004/108/EC)
•
EN 61326-1:2006
NON-HAZARDOUS
LOCATION
CERTIFICATIONS
NOTE:
Refer to the housing label to identify the approvals for your transmitter.
American and Canadian
Certifications
Factory Mutual (FM) Ordinary Location Certification
The transmitter has been examined and tested to determine that the design
meets basic electrical, mechanical, and fire protection requirements by FM, a
nationally recognized testing laboratory (NRTL) as accredited by the Federal
Occupational Safety and Health Administration (OSHA).
Canadian Standards Association (CSA) Ordinary Location Certification
The transmitter has been examined and tested to determine that the design
meets basic electrical, mechanical, and fire protection requirements by CSA,
a nationally recognized testing laboratory as accredited by the Standards
Council of Canada (SCC).
B-2
Reference Manual
IP2013, Rev BA
February 2012
Mobrey MSP422
The Emerson logo is a trade mark and service mark of Emerson Electric Co.
Rosemount is a registered trademark of Rosemount Inc.
Mobrey is a registered trademark of Mobrey Ltd.
All other marks are the property of their respective owners.
We reserve the right to modify or improve the designs or specifications of product and services at any time without notice.
© 2012 Mobrey Ltd. All rights reserved.
International:
Emerson Process Management
Mobrey Ltd.
158 Edinburgh Avenue
Slough, Berks, SL1 4UE, UK
T +44 (0)1753 756600
F +44 (0)1753 823589
www.mobrey.com
IP2013 Rev BA 02/12
Americas:
Emerson Process Management
Rosemount Measurement
8200 Market Boulevard
Chanhassen MN 55317 USA
Tel (USA) 1 800 999 9307
Tel (International) +1 952 906 8888
Fax +1 952 906 8889
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