Emerson Rosemount 3410 Series User manual

Installation manual
00825-0600-3104, Rev AC
October2023
Rosemount™ 3410 Series Gas Ultrasonic
Flow Meters
3414, 3412, and 3411

Safety and approval information
This Rosemount product complies with all applicable European directives when properly installed in accordance with
the instructions in this manual. Refer to the EU Declaration of Conformity for directives that apply to this product. The
EU Declaration of Conformity, with all applicable European directives, and the complete ATEX installation drawings
and instructions are available on the Internet at Emerson.com or through your local Emerson support center.
Information affixed to equipment that complies with the Pressure Equipment Directive can be found on the Internet
at Emerson.com.
For hazardous installations in Europe, refer to standard EN 60079-14 if national standards do not apply.
Other information
Full product specifications can be found in the product data sheet. Troubleshooting information can be found in the
maintenance and troubleshooting manual.
Product data sheets and manuals are available on the Emerson website at Emerson.com.
Return policy
Follow Emerson procedures when returning equipment.
These procedures ensure legal compliance with government transportation agencies and help provide a safe working
environment for Emerson employees. Emerson will not accept your returned equipment if you fail to follow Emerson
procedures. Return procedures and forms are available on our website at Emerson.com or by phoning the Emerson
Customer Service department.
Emerson Flow customer service
•Worldwide: [email protected]
•Asia-Pacific: [email protected]
2

Contents
Chapter 1 Introduction...............................................................................................................................5
1.1 Typical applications of this product.......................................................................................... 5
1.2 Features and benefits of the 3411, 3412, and 3414 meter.................................................... 5
1.3 Acronyms, abbreviations, and definitions................................................................................6
1.4 MeterLink™ software................................................................................................................... 8
1.5 Design of Rosemount 3410 series meter................................................................................. 9
1.6 Meter specifications for 3411, 3412, and 3414......................................................................11
1.7 Pre-installation considerations................................................................................................17
1.8 Safety considerations................................................................................................................18
1.9 Certifications and approvals for the Rosemount 3410 series............................................. 18
1.10 FCC compliance....................................................................................................................... 19
1.11 References................................................................................................................................19
Chapter 2 Mechanical installation.......................................................................................................... 21
2.1 Meter piping, lifting and mounting.........................................................................................21
2.2 Meter components....................................................................................................................23
2.3 Pipe recommendations............................................................................................................ 27
2.4 Pre-installation inspection........................................................................................................29
2.5 Mounting requirements in heated or cooled pipelines........................................................37
Chapter 3 Electrical installation..............................................................................................................39
3.1 Cable length TTL mode.............................................................................................................39
3.2 Cable length Open Collector mode.........................................................................................39
3.3 Grounding meter electronics housing................................................................................... 40
3.4 Conduit seals..............................................................................................................................41
3.5 Wiring and inputs/outputs.......................................................................................................48
3.6 Security seal installation...........................................................................................................66
3.7 Sealing the unit..........................................................................................................................70
Chapter 4 Configuration.......................................................................................................................... 71
4.1 Set up the MeterLink™...............................................................................................................71
4.2 Field Setup Wizard.....................................................................................................................71
4.3 Using AMS Device Manager to configure the meter............................................................ 78
4.4 Using a Field Communicator to configure the meter...........................................................90
4.5 Security seals for the meter (optional)................................................................................... 92
4.6 Configure users and network security................................................................................... 92
Appendix A Engineering drawings.............................................................................................................93
A.1 3410 Series engineering drawings......................................................................................... 93
Appendix B Open source licenses.............................................................................................................. 97
B.1 List of source codes for executable files................................................................................ 97
B.2 GNU General Public License.................................................................................................... 97
B.3 GNU Lesser General Public License......................................................................................102
B.4 BSD Open Source License......................................................................................................104
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B.5 M.I.T License............................................................................................................................ 105
B.6 Zlib License.............................................................................................................................. 105
Contents Installation manual
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4 Gas Ultrasonic Flow Meters

1 Introduction
1.1 Typical applications of this product
Rosemount 3410 Series Ultrasonic Gas Flow Meters have various configurations that
meet a broad range of customer requirements. Each meter comes fully assembled from
Emerson. The technology can be applied to custody transfer, allocation measurement, and
check metering applications such as:
•Custody transfer
•Power plants
•Large industrial users
•Production
•Underground storage sites
•Offshore
•Allocation measurement
1.2 Features and benefits of the 3411, 3412, and
3414 meter
•Secondary backup measurement
•Configurable read-only serial ports
•GERG-2008 and Detail AGA Methods
•Custody meter verification
•Proven long term stability
•Field proven reliability
•No line obstruction
•No pressure loss
•Low maintenance
•Bi-directional measurement
•Extensive self-diagnostics
•Immediate alarm reporting
•Continuous flow analysis
—Abnormal profile
—Blockage
—Internal bore buildup
—Liquids present in the gas meter
—Reverse flow
—Speed of sound comparison error
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•Auto-detected ASCII/RTU Modbus® communications protocol
•Low power consumption
•Sophisticated noise reduction
•Internet-ready communications
•Ethernet access
•On-board LED status indicators
•Analog pressure and temperature inputs
•Communication via Emerson’s AMS™ Device Manager and Field Communicator
•API Chapter 21 compliant event and data logging (gas meters)
•MeterLink™ (a Windows®- based interface software)
•Local display (optional)
•Smart meter verification (4-Path and 8-Path meters)
For other features and benefits, refer to the Emerson Ultrasonic flow meter product data
sheets.
1.3 Acronyms, abbreviations, and definitions
Acronym or abbreviation Definition
° Degree (angle)
°C Degrees Celsius (temperature unit)
°F Degrees Fahrenheit (temperature unit)
ADC Analog-to-digital converter
AI Analog input
AO Analog output
ASCII MODBUS A Modbus® protocol message framing format in which
ASCII characters are used to delineate the beginning and
end of the frame. ASCII stands for American Standard Code
for Information Interchange.
boolean A type of data point that can only take on values of TRUE or
FALSE (generally TRUE is represented by a value of 1, FALSE
is represented by a value of 0).
bps Bits per second (baud rate)
cPoise Centipoise (viscosity unit)
CPU Central processing unit
CTS Clear-to-send; the RS-232C hand shaking signal input to
a transmitter indicating that it is okay to transmit data,
meaning that the corresponding receiver is ready to receive
data. Generally, the request-to-send (RTS) output from
a receiver is input to the clear-to-send (CTS) input of a
transmitter.
DAC Digital-to-analog converter
MeterLink™Ultrasonic meter interface software
DI Digital input
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Acronym or abbreviation Definition
DO Digital output
DHCP Dynamic host configuration protocol
dm Decimeter (10-1 meters, length unit)
ECC Error correction code
EEPROM Electrically-erasable, programmable read-only memory
Flash Non-volatile, programmable read-only memory
FODO Output that is user configurable as either a frequency or
digital output
HART® Communication Protocol Highway addressable remote transducer communications
protocol
hr Hour (time unit)
Hz Hertz (cycles per second, frequency unit)
I/O Input/output
IS Intrinsically safe
K Kelvin (temperature unit)
kHz kilohertz (103 cycles per second, frequency unit)
LAN Local area network
LED Light-emitting diode
m Meter (length unit)
m3/d Cubic meters per day (volumetric flow rate)
m3/h Cubic meters per hour (volumetric flow rate)
m3/s Cubic meters per second (volumetric flow rate)
mA Milliamp (current unit)
MAC address Media access control (Ethernet hardware address - EHA)
microinch (m inch) Microinch (10-6 in)
micron Micrometer (10-6 m)
MMU Memory management unit
MPa Megapascal (equivalent to 106 Pascal) (pressure unit)
N/A Not applicable
Nm3/h Normal cubic meters per hour
NVRAM Non-volatile random access memory
Pa Pascal, equivalent to 1 newton per square meter (pressure
unit)
Pa × s Pascal second (viscosity unit)
PC Personal computer
PFC Peripheral field connection (board)
P/N Part number
PS Power supply (board)
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Acronym or abbreviation Definition
psi Pounds per square inch (pressure unit)
psia Pounds per square inch absolute (pressure unit)
psig Pounds per square inch gauge (pressure unit)
R Radius of meter
rad Radian (angle)
RAM Random access memory
RTS Request-to-send; the RS-232C hand shaking signal output
by a receiver when it is ready to receive data
RTU MODBUS A Modbus® protocol framing format in which elapsed time
between received characters is used to separate messages.
RTU stands for remote terminal unit.
s Second (time unit, metric)
SDRAM Synchronous dynamic random access memory
sec Second (time unit, US customary)
TCP/IP Transmission control protocol/Internet protocol
time_t Seconds since Epoch (00:00:00 UTC Jan.1,1970) (time unit)
UDP User datagram protocol
U.L. Underwriters Laboratories, Inc. - product safety test in gand
certification organization
V Volts (electric potential unit)
W Watts (power unit)
1.4 MeterLink™ software
MeterLink software has robust features for setting communications parameters,
configuring your meter, collecting logs and reports and monitoring the meter health and
alarm statuses. MeterLink may be downloaded at no charge from: Emerson.com/meterlink.
Figure 1-1: MeterLink download and registration
Refer to MeterLink Software for Gas and Liquid Ultrasonic Meters Quick Start Manual
for installation instructions and setup for initial communications. You may download the
manual from the MeterLink web page: Emerson.com/meterlink.
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8 Gas Ultrasonic Flow Meters

1.5 Design of Rosemount 3410 series meter
Rosemount 3410 Series Gas Ultrasonic Flow Meters are designed to accurately measure
products in applications where reliable performance is critical, by measuring the difference
in signal transit time with and against the flow across one or more measurement path(s). A
signal transmitted in the flow direction travels faster than one transmitted against the flow
direction. Each measurement path is defined by a transducer pair in which each transducer
alternately acts as transmitter and receiver. The meter uses transit time measurements
and transducer location information to calculate the mean velocity.
Computer simulations of various velocity profiles demonstrate that multiple measurement
paths provide an optimum solution for measuring asymmetric flow.
Rosemount 3414 Gas Ultrasonic Flow meters utilize four cross-bore, parallel-plane
measurement paths that offer a high degree of accuracy, repeatability, bi-directional
measurement and superior low-flow capabilities without the compromises associated with
conventional technologies. These features make the Rosemount 3414 the best choice for
custody transfer applications.
Figure 1-2: Rosemount 3414 Gas Ultrasonic Flow Meter design
A. Transmitter electronics enclosure (explosion-proof) Optional - Local Display with glass
endcap. (See Figure 1-5.)
B. Base electronics enclosure (intrinsically safe)
C. Meter body with transducer assemblies (T-11, T-12, T-21, T-22 or T-200) (intrinsically safe)
Rosemount 3412 Gas Ultrasonic Flow meters utilize two-path in-line (four transducers)
measurement paths and are designed to measure the difference in signal transit time
with and against the flow across one or more measurement path(s). The two paths are
configured at right angles to one another in a “bulls-eye” arrangement.
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Figure 1-3: Rosemount 3412 Gas Ultrasonic Flow Meter design
A. Transmitter electronics enclosure (explosion-proof) Optional - Local Display with glass
endcap. (See Figure 1-5.)
B. Base electronics enclosure (intrinsically safe)
C. Meter body with transducer assemblies (T-11, T-12, T-21 and T-22) (intrinsically safe)
Rosemount 3411 Gas Ultrasonic Flow meters are single-path (two transducer) Gas
Ultrasonic Flow Meter and is referred to as a bounce-path (as the signal is bounced off
the meter body) or a centerline path (as it goes through the centerline of the meter body)
meter. The bounce-path method simplifies construction of the meter and makes the meter
less susceptible to interference from pipeline liquids.
Figure 1-4: Rosemount 3411 Gas Ultrasonic Flow Meter design
A. Transmitter electronics enclosure (explosion-proof) Optional - Local Display with glass
endcap. (See Figure 1-5.)
B. Base electronics enclosure (intrinsically safe)
C. Meter body with transducer assemblies (T-11, T-12, T-21 or T-22) (intrinsically safe)
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10 Gas Ultrasonic Flow Meters

The Rosemount Gas Ultrasonic Flow Meter design is available with an optional glass
endcap and a local display.
Figure 1-5: Transmitter electronics enclosure with local display and glass endcap
All Rosemount ultrasonic flow meter’s U.L. safety listing is accomplished through the
combination of an explosion-proof transmitter electronics enclosure that houses the CPU
module, Power Supply board, I.S. Barrier board, Backplane board and optional LCD Display
board.
Note
The optional LCD Display requires firmware v1.04 or later and Uboot version, April 25,
2022.
The Base Electronics Enclosure that houses the Acquisition Module. Intrinsically safe
transducers and cable assemblies are designed for Class 1, Division 1, Groups C and D
areas without need of further protection when installed in accordance with the field wiring
diagram (refer to Rosemount drawing DMC-005324 in Engineering drawings).
1.6 Meter specifications for 3411, 3412, and 3414
WARNING
Contents may be under pressure.
When the meter is under pressure, DO NOT attempt to remove or adjust the transducer
holder.
Attempting to do so could release pressurized gases, resulting in serious injury or
equipment damage.
WARNING
Contents may be hazardous.
The meter must be fully depressurized and drained before attempting to remove the T-200
transducer assembly. If gas or fluid begins to leak from the T-200 transducer stalk
assembly, stop immediately and reinstall T-200 stalk assembly.
Failure to comply could cause serious injury or equipment damage.
A. Transducer holder
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CAUTION
Escaping gases or fluids hazard
The purchaser of the meter is responsible for the selection of Rosemount components/
seals and materials compatible with the chemical properties of gas flow measurement.
Failure to select the suitable meter component/seals may cause escaping gases or liquids,
resulting in injury or equipment damage.
Consult your Rosemount Sales and Service representative to ensure you purchase the
correct components and seals for your application. Specifications for Rosemount Gas
Ultrasonic Flow Meters 3411, 3412 and 3414 are below:
Table 1-1: Rosemount 3411, 3412 and 3414 meter specifications (part 1)
Rosemount 3411, 3412 and 3414 meter specifications
Meter type Number of paths
•3411 Rosemount single path (two transducer)
or center-line (bounce) design
•3412 Rosemount two-path (four transducer)
center-line (bounce) design
•3414 Rosemount four-path (eight transducer)
chordal design
Ultrasonic type
•Transit-time based measurement
•Spool piece with integral mount transducers
Enclosure materials •ASTM B26 Gr A356.0 T6 Aluminum
—100% conversion coated and exterior
coated with a polyurethane enamel
•ASTM A351 Gr CF8M Stainless Steel
—Passivated
Optional Local Display with a glass endcap on
transmitter enclosure
Meter performance
Linearity •3414 Four-path meter chordal design
—± 0.3% of measured value over a 100:1
turndown 3-100 ft./s; 0.3 to 30 m/s
including lab uncertainty
—Flow calibrated accuracy is ± 0.1% of
reading relative to lab over entire flow
calibration range (Qmin - Qmax)
•3411 single-path or 3412 two-path
—Flow calibrated accuracy is ± 0.5% of
reading relative to lab1
—Accuracy is typically ±1.5% of actual
volume flow1 (without flow calibration)
1Does not take into consideration changes in wall roughness and installation effects.
Repeatability ±0.05% of reading in the specified velocity range
from 5% to 100% (Qmax)
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12 Gas Ultrasonic Flow Meters

Table 1-1: Rosemount 3411, 3412 and 3414 meter specifications (part 1) (continued)
Rosemount 3411, 3412 and 3414 meter specifications
Velocity range •100 ft./s (30 m/s) with over-range)
•125 fps (38 m/s) on some line sizes
•Meter meets or exceeds AGA9 (2007)
performance specifications
Table 1-2: Performance specifications
Meter size 4” to 24” 30” 36”
Qmin(ft./s) 2 2 2
Qt (ft./s) 10 8.5 7.5
Qmax (ft./s) 100 85 75
Table 1-3: Rosemount 3411, 3412 and 3414 meter specifications (part 2)
Body and Flange Sizes and Pressure rating range U.S. Customary Units - Meter sizes 4, 6, 8, 10, 12,
16, 18, 20, 24, 30, and 36 (in.)
•ANSI pressure classes 300, 600, 900 and 1500
(per ANSI B16.5)
•Carbon Steel
•316 Stainless Steel
Metric Units - Meter sizes DN - 100, 150, 200, 250,
300, 400, 450, 500, 600, 700, 750, 900
•PN 50, 100, 150, 200
•Carbon Steel
•316 Stainless Steel
Maximum Pressures
•Dependent on operating temperature
Meter bore
•Schedule 20, 30, 40, 60, 80, 100, 120, 140,
160, STD, XS, LW
Flange types ANSI classes - 300, 600, 900 and 1500 (per ANSI
B16.5)
Specific Gravity 0.35 to 1.50
Accuracy Limits 3414 accuracy limits (AGA 9 compliant) are:
•± 1% without a flow calibration (10” and
smaller line sizes)
•± 0.7% without a flow calibration (for 12” and
larger line sizes)
•±0.1% with a flow calibration
3411 and 3412 accuracy limits are:
•± 1.5% without a flow calibration
Minimum operating pressure 100 psig (7 bar)
Electronic specifications
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Table 1-3: Rosemount 3411, 3412 and 3414 meter specifications (part 2) (continued)
Power Meter
•10.4 Vdc to 36 Vdc
•11 W power consumption (15 W maximum)
Serial cable
•Belden #9940 or equivalent (22 gauge)
—Capacitance (pF/m) 121.397 (conductor to
conductor)
—Capacitance (pF/m) 219.827 (conductor to
other conductor and shield)
—Resistance (Dc) DCR @ 20° C
(recommended)
Ethernet cable
•Cat-5 Standard 100 Mbps
Frequency (see Table 1-2)
•22 AWG wire characteristics areas follows:
—Capacitance = 20 pF/ft. or 20 nF/1000 ft.
(between two wires)
—Resistance = 0.0168 Ohms/ft. or 16.8
Ohms/1000 ft.
—Pull-up voltages 24 Vdc
Table 1-4: Transducer specifications
Transducer type Temperature range Mount and holder type
T-11 -20 °C to +100 °C (-4 °F to 212 °F) Standard mounts/Holders, NBR
O-ring
Inconel mounts/316L Holders,
NBR O-ring
Inconel Mounts/Inconel
Holders/FKM O-ring
T-12 -20 °C to +100 °C (-4 °F to 212 °F) Standard mounts/Holders, NBR
O-ring
Inconel mounts/316L Holders,
NBR O-ring
Inconel Mounts/Inconel
Holders/FKM O-ring
T-211-20 °C to +100 °C (-4 °F to 212 °F) Standard mounts/Holders, NBR
O-ring
Inconel mounts/316L Holders,
NBR O-ring
Inconel Mounts/Inconel
Holders/FKM O-ring
T-222-50 °C to +100 °C (-58°F to 212
°F)
Standard mounts/Holders, NBR
O-ring
Inconel mounts/316L Holders,
NBR O-ring
Inconel Mounts/Inconel
Holders/FKM O-ring
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14 Gas Ultrasonic Flow Meters

Table 1-4: Transducer specifications (continued)
Transducer type Temperature range Mount and holder type
T-200 -50 °C to +125 °C (-58°F to 257
°F)
Standard Stalk Assemblies
Inconel Stalk Assemblies
1T-21 transducers use W-01 transformers.
2T-22 transducers use W-02 transformers.
Note
The process temperature must not exceed the operating temperature range of the transducers.
Note
T-11 and T-21 transducers are designed for 14 inch and larger meters. T-12, T-22 and T-200
transducers are designed for 4" through 12" meters.
Note
T-11 and T-21 transducers are used for all meter sizes for 3411 and 3412.
Note
The ultrasonic transducers are not intended for use across boundary walls of different hazardous
area classifications. The transmitter electronics cannot be remote mounted from Division 1
classification to a Division 2 area to meet an area classification.
Table 1-5: Rosemount 3411, 3412 and 3414 meter specifications (part 3)
Communications specifications
Connectivity protocols One serial RS-232/RS-485 port (115 kbps baud
rate) (Modbus RTU/ASCII)
•(1) Serial Port A
•(RS-232/RS-485 Full Duplex/RS-485 Half
Duplex)
One Ethernet Port (TCP/IP) 100 BaseT
•Up to 10 Mbps (internal connection) 100Mbps
(external connection)
•Modbus TCP
Device compatibility Rosemount Ultrasonic flow meters are
compatible with nearly every commercially
available flow computer.
Examples: FloBoss 103, FloBoss S600 flow
computer, ROC 107
Digital, analog, and frequency inputs
Digital Input(s) (Selectable) (1) Single polarity
•Four pulse configurations available
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Table 1-5: Rosemount 3411, 3412 and 3414 meter specifications (part 3) (continued)
Analog Input(s) (2) 4-20 mA
•AI-1 Temperature
•AI-2 Pressure
Note
The analog-to-digital conversion accuracy is
within ±0.05% of full scale over the operating
temperature range.
Note
AI-1 and AI-2 are electronically isolated and
operate in sink mode. The input contains a
series resistance so HART® Communicators can
be connected to configure sensors.
A 24 Volt Dc power output is available to provide
power to the sensors.
Frequency/Digital Output(s) The meter has user-configurable selections for
either a Frequency Output or Digital Output
(FODO) status. (Also see Frequency/Digital
outputs).
Frequency/Digital Outputs
•FODO1 (eight possible output configurations)
•FODO2 (eight possible output configurations)
•FODO3 (eight possible output configurations)
•FODO4 (eight possible output configurations)
•FODO5 (eight possible output configurations)
•FODO6 (eight possible output configurations)
Note
Use of FODO6 requires DI1Mode set to
Frequency/Digital Output 6. Digital Input will not
be available.
Frequency or Digital Output parameter pairs (see
Frequency/Digital outputs)
Frequency or Digital Outputs (FODO1, FODO2,
FODO3, FODO4, FODO5, FODO6) source
selections
•(FO1A, DO1A, FO1B, DO1B, FO2A, DO2A,
FO2B, DO2B)
Mode options:
•Open Collector (requires external excitation
supply voltage and pull-up resistor)
•TTL (internally powered by the meter 0-5 Vdc
signal)
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Table 1-5: Rosemount 3411, 3412 and 3414 meter specifications (part 3) (continued)
Channel B Phase options:
•Lag forward, Lead reverse (Phase B lags
Phase A while reporting forward flow, leads
Phase A while reporting reverse flow)
•Lead forward, Lag reverse (Phase B leads
Phase A while reporting forward flow, lags
Phase A while reporting reverse flow)
Phase A and Phase B output (based on flow
direction)
•Reverse flow - output only reports flow in
the reverse direction. For frequency outputs,
Phase B of the output is 90 degrees out of
phase with Phase A.
•Forward flow - output only reports flow in
the forward direction. For frequency outputs,
Phase B of the output is 90 degrees out of
phase with Phase A.
•Absolute - output reports flow in both
directions. For frequency outputs, Phase B of
the output is 90 degrees out of phase with
Phase A.
•Bidirectional - output reports flow on Phase A
only in the forward direction and on Phase B
only in the reverse direction.
Maximum frequency for the frequency outputs
•1000Hz
•5000Hz
Analog Output(s) •(1) 4-20 mA independently configurable
analog output (HART®)
•(1) 4-20 mA independently configurable
analog output (conventional) - Type 2 CPU
ONLY The analog output zero scale offset
error is within ±0.1% of full scale and gain
error is within ±0.2% of full scale.
The total output drift is within ±50 ppm of full
scale per °C.
1.7 Pre-installation considerations
•Pipeline equipment code compliance, ANSI, ASME, etc.
•Proper Inlet/outlet meter tube piping for reasonable stable flow to the settling chamber
(first meter tube spool upstream of the meter).
•Electrical safety compliance: UL, CSA, ATEX, IECEx etc.
•Civil and structural good practices compliance
•Contractual agreements and/or governmental compliance
•In-situ performance test procedures
•Field tested meter health check and flow dynamics diagnostics
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•Data collection and retention procedures
1.8 Safety considerations
The Rosemount 3410 Series Gas Ultrasonic Flow Meter is suitable for use in U.L. Class 1,
Division 1, Group C and D hazardous locations.
NOTICE
An “X” signifies the user should contact Emerson for information on the dimensions of the
flameproof joints.
Refer to the 3410 Series Systems Wiring Diagram, Sheet 3 (DMC-005324) for the
certification tag (see 3410 Series engineering drawings).
3410 Series Gas Ultrasonic Meters are INMETRO certified. Refer to the 3410 Series Gas
Ultrasonic Flow Meter Tag, INMETRO Certification drawing DMC-006224.
Certificate number: UL-BR 16.0144X
Marking: Ex db ia IIB T4...T3 Gb
Electrical parameters: Refer to Meter specifications for 3411, 3412, and 3414 and 3410
Series engineering drawings.
Special conditions for safe use
•Explosion proof joint dimensions are compliant with the Brazilian Association of
technical standard: ABNT NBR IEC 60079-1, Table 3.
•The enclosure for the explosion proof transmitter and intrinsically safe barrier must be
remote mounted Table 1-3) if the operating temperature exceeds 140 °F (60 °C) (refer to
Table 1-3).
•Cable length (refer to Table 1-3).
WARNING
Explosion or fire hazard
Conduit runs must have a sealing fitting within 18 in. (457 mm) of the enclosure to reduce
the risk of an explosion or a fire.
•During operation, keep covers tight.
•During equipment maintenance, disconnect power before opening transmitter or base
electronics. Clean cover joints before replacing.
•DO NOT substitute meter components. Component substituting may compromise the
intrinsic safety.
Failure to comply could result in severe injury to personnel or cause damage to the
equipment.
1.9 Certifications and approvals for the Rosemount
3410 series
3410 Series Gas Ultrasonic Flow Meters have electrical, metrology, intrinsic safety and
Pressure Equipment Directive certifications and approvals by the agencies listed below.
Refer to the nameplate tag on the meter body, the wiring diagram (DMC-005324) in 3410
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18 Gas Ultrasonic Flow Meters

Series engineering drawings and observe all safety precautions. 3410 Series Gas Ultrasonic
Flow Meters operate within the pressure and temperature range of the device (also see
Design of Rosemount 3410 series meter). 3410 Series Gas Ultrasonic Flow Meters are
approved to the ATEX Directive 94/9/EC.
Standards
•US
•Canada
•Europe
—Explosive Atmospheres (ATEX)
—International Electrotechnical Commission (IECEx)
—Pressure Equipment Directive (PED via BSI)
—Electromagnetic Compatibility (EMC)
—International Organization of Legal Metrology (OIML)
Approval agencies
•UL
•c-UL
•DEMKO
•INMETRO
•NEPSI
•GOSTR
Important
Please consult Emerson Flow services for Rosemount products for the complete metrology
approvals list.
1.10 FCC compliance
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area
is likely to cause harmful interference. In such a case, the user will be required to correct
the interference at their own expense.
NOTICE
Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
1.11 References
1. Gould Modbus Protocol Reference Guide, Rev. B, PI-MBUS-300
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2. Measurement of Fuel Gas By Turbine Meters, American Gas Association,
Transmission Measurement Committee Report No. 7, Second Revision, April 1996
(also referred to as AGA7)
3. Compressibility Factors of Natural Gas and Other Related Hydrocarbon Gases,
American Gas Association, Transmission Measurement Committee Report No. 8,
Second Edition, Second Printing, July 1994 (also referred to as AGA8)
4. Speed of Sound in Natural Gas and Other Related Hydrocarbon Gases, Report 10,
First Edition, May 2003 (also referred to as AGA10)
5. Manual of Petroleum Measurement Standards, Chapter 21 — Flow Measurement
Using Electronic Metering Systems, Section 1 — Electronic Gas Measurement,
American Gas Association and American Petroleum Institute, First Edition,
September 1993
6. AGA Report No. 9, Measurement of Gas by Multipath Ultrasonic Meters, Second
Edition (April 2007)
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20 Gas Ultrasonic Flow Meters