Full product specifications can be found in the product data sheet. Troubleshooting information can be found in the configuration
manual. Product data sheets and manuals are available from the Micro Motion web site at www.micromotion.com/documentation.
Return policy
Follow Micro Motion procedures when returning equipment. These procedures ensure legal compliance with government
transportation agencies and help provide a safe working environment for Micro Motion employees. Micro Motion will not accept
your returned equipment if you fail to follow Micro Motion procedures.
Return procedures and forms are available on our web support site at www.micromotion.com, or by phoning the Micro Motion
Customer Service department.
Emerson Flow customer service
Email:
•Worldwide: flow.support@emerson.com
•Asia-Pacific: APflow.support@emerson.com
Telephone:
North and South AmericaEurope and Middle EastAsia Pacific
United States800-522-6277U.K.0870 240 1978Australia800 158 727
A.Dual core processor
B.9-wire cable
C.Model LNGM10 for filling measurement
D.Model LNGS06 for returning measurement
1.2
Quick Start Guide1
Installation checklist
□
Make sure that the hazardous area specified on the approval tag is suitable for the
environment in which the LNG meters will be installed.
Planning
□
Verify that the local ambient and process temperatures are within the limits of the
LNG meters.
□
Verify that you are using low-voltage DC power for the core processor. Excess
voltage can damage the core processor.
□
For I.S. applications, refer to Micro Motion ATEX, UL, or CSA installation instructions.
□
Mount the LNG electronics in any orientation as long as the conduit openings do not
point upward.
CAUTION!
Upward-facing conduit openings risk condensation entering the housing that can
damage the electronics.
□
Install the sensors so that the flow direction arrow on the case matches the actual
forward flow of the process. (Flow direction is also software-selectable.)
LNGS06
Gas return sensor
LNGM10
Filling sensor
1.3Power requirements
•
18 to 30 VDC, 3 watts typical, 5 watts maximum
•Minimum 28 VDC with 300 meters of 1 mm2 power-supply cable
•At startup, power source must provide a minimum of 0.5 amperes of short term
current at a minimum of 18 volts at the electrical parts power input terminals
•The maximum steady state current is 0.2A
•Complies with Installation (Overvoltage) Category II, Pollution Degree 2
Note
•Power requirements assume a single core processor per cable.
•Length and conductor diameter of the power cable must be sized to provide 18 VDC
minimum at the power terminals, at a load current of 0.2 amps.
2Micro Motion Liquified Natural Gas Meter
Cable sizing formula
M = 18V + (R x L x 0.2A)
•M: minimum supply voltage
•R: cable resistance
•L: cable length
Typical power cable resistance at 68 °F (20 °C)Table 1-1:
Wire gaugeResistance
14 AWG0.0050 Ω/ft
16 AWG0.0080 Ω/ft
18 AWG0.0128 Ω/ft
20 AWG0.0204 Ω/ft
2.5 mm
1.5 mm
1.0 mm
0.75 mm
0.50 mm
2
2
2
2
2
0.0136 Ω/m
0.0228 Ω/m
0.0340 Ω/m
0.0460 Ω/m
0.0680 Ω/m
Planning
Quick Start Guide3
Mounting
2Mounting
Topics covered in this chapter:
Mount the sensors
•
Mount the dual core processor (option 1)
•
Mount the enhanced core processor with MVD Direct Connect I.S. Barrier
•
(option 2)
2.1Mount the sensors
1.Mount the LNGS06.
2.2
2.Mount the LNGM10.
Mount the dual core processor (option 1)
Mount the dual core processor on either a pipe or a wall.
4Micro Motion Liquified Natural Gas Meter
Mounting
Dual core processor: pipe mountFigure 2-1:
Dual core processor: wall mountFigure 2-2:
2.3Mount the enhanced core processor with MVD
Direct Connect I.S. Barrier (option 2)
1.Mount the enhanced core processor on either a pipe or a wall.
Quick Start Guide5
Mounting
Enhanced core processor: pipe mountFigure 2-3:
Enhanced core processor: wall mountFigure 2-4:
2.Mount the barrier on a DIN rail.
6Micro Motion Liquified Natural Gas Meter
Mounting
Barrier mount on DIN railFigure 2-5:
Quick Start Guide7
Wiring
3Wiring
Topics covered in this chapter:
Wire the core processor to the sensor
•
Wire the dual core processor (option 1)
•
Wire the enhanced core processor (option 2)
•
3.1Wire the core processor to the sensor
3.1.1Wire the core processor to the sensor using jacketed
cable
Prerequisites
For hazardous area installations, install the jacketed cable inside a user-supplied sealed
metallic conduit that provides 360° termination shielding for the enclosed cable.
CAUTION!
•Sensor wiring is intrinsically safe. To keep sensor wiring intrinsically safe, keep the
sensor wiring separated from power supply wiring and output wiring.
•Keep cable away from devices such as transformers, motors, and power lines, which
produce large magnetic fields. Improper installation of cable, cable gland, or conduit
could cause inaccurate measurements or flow meter failure.
•Improperly-sealed housings can expose electronics to moisture, which can cause
measurement error or flowmeter failure. Install drip legs in conduit and cable, if
necessary. Inspect and grease all gaskets and O-rings. Fully close and tighten all housing
covers and conduit openings.
Procedure
1.Run the cable through the conduit.
2.At the core processor, insert the stripped end of each wire into the corresponding
terminal at the core processor ends, matching by color. No bare wires should remain
exposed. See the following table.
A. Brown
B. Violet
C. Yellow
D. Orange
E. Gray
F. Blue
G. White
H. Green
I. Red
J. Ground screw (black)
3.1.2
Wire the core processor to the sensor using shielded
cable
Prerequisites
For hazardous area installations, shielded cable must be installed with cable glands at the
core processor end. Cable glands that meet hazardous area requirements can be
purchased from Micro Motion. Cable glands from other vendors can be used.
CAUTION!
•Sensor wiring is intrinsically safe. To keep sensor wiring intrinsically safe, keep the
sensor wiring separated from power supply wiring and output wiring.
•Keep cable away from devices such as transformers, motors, and power lines, which
produce large magnetic fields. Improper installation of cable, cable gland, or conduit
could cause inaccurate measurements or flow meter failure.
•Improperly-sealed housings can expose electronics to moisture, which can cause
measurement error or flowmeter failure. Install drip legs in conduit and cable, if
necessary. Inspect and grease all gaskets and O-rings. Fully close and tighten all housing
covers and conduit openings.
Procedure
1.Identify the components of the cable gland and cable.
10Micro Motion Liquified Natural Gas Meter
Cable gland and cable (exploded view)Figure 3-3:
ABCDEF
GHI
A. Cable
B. Sealing nut
C. Compression nut
D. Brass compression ring
E. Braided shield
F. Cable
G. Tape or heat-shrink tubing
H. Clamp seat (shown as integral to nipple)
I. Nipple
Wiring
2.Unscrew the nipple from the compression nut.
3.Screw the nipple into the conduit opening for the 9-wire cable. Tighten it to one turn
past hand-tight.
4.Slide the compression ring, compression nut, and sealing nut onto the cable. Make
sure the compression ring is oriented so the taper will mate properly with the
tapered end of the nipple.
5.Pass the cable end through the nipple so the braided shield slides over the tapered
end of the nipple.
6.Slide the compression ring over the braided shield.
7.Screw the compression nut onto the nipple. Tighten the sealing nut and
compression nut by hand to ensure that the compression ring traps the braided
shield.
8.Use a 25-mm (1-inch) wrench to tighten the sealing nut and compression nut to
20–25 foot-pounds (27–34 N-m) of torque.
Quick Start Guide11
A
B
C
E
D
F
GA
Wiring
Cross-section of assembled cable gland with cableFigure 3-4:
A. Cable
B. Sealing nut
C. Seal
D. Compression nut
E. Braided shield
F. Brass compression ring
G. Nipple
9.Remove the core processor cover.
10.At the core processor, connect the cable according to the following procedure:
a. Insert the stripped end of each wire into the corresponding terminal at the core
processor ends, matching by color. No bare wires should remain exposed. See
the following table.
Core processor terminal designationsTable 3-2:
Wire colorFunction
BlackDrain wires
BrownDrive +
RedDrive –
OrangeTemperature –
YellowTemperature return
GreenLeft pickoff +
BlueRight pickoff +
VioletTemperature +
GrayRight pickoff –
WhiteLeft pickoff –
12Micro Motion Liquified Natural Gas Meter
A
B
I
H
G
F
E
D
C
J
Wiring
Dual core processor terminalsFigure 3-5:
A. Sensor 1
B. Sensor 2
Enhanced core processor terminalsFigure 3-6:
A. Brown
B. Violet
C. Yellow
D. Orange
E. Gray
F. Blue
G. White
H. Green
I. Red
J. Ground screw (black)
Quick Start Guide13
Wiring
b. Tighten the screws to hold the wires in place.
c. Ensure integrity of gaskets, grease all O-rings, then replace the core processor
housing cover and tighten all screws, as required.
3.2Wire the dual core processor (option 1)
Use this section for a dual core processor installation.
3.2.1Connect the 9-wire cable on a dual core processor
Prerequisites
Prepare and install the cable according to the instructions in the Micro Motion Liquified
Natural Gas Meter Installation Guide.
Procedure
1.Remove the dual processor housing cover.
2.Insert the stripped ends of the individual wires into the terminal blocks. Ensure that
no bare wires remain exposed.
3.Match the wires color for color.
A. Sensor 1
B. Sensor 2
4.If the wire length is not 3m, use ProLink III to register a different length. For more
information, see the Micro Motion LNG Series Meters Configuration and Use Manual.
14Micro Motion Liquified Natural Gas Meter
3.2.2Wire the dual core processor power supply
Prerequisites
Prepare and install the cable according to the instructions in the Micro Motion Liquified
Natural Gas Meter Installation Guide.
Procedure
Connect the power supply wires to the positive (+) and negative (–) terminals.
Terminate the positive (line) wire on the positive (+) red terminal and the return (neutral)
wire on the negative (–) black terminal.
Wiring
A. Power supply
3.2.3
Quick Start Guide15
Wire the dual core processor outputs
Prerequisites
Prepare and install the cable according to the instructions in the Micro Motion Liquified
Natural Gas Meter Installation Guide.
Procedure
Connect the RS-485 wires to the white RS485A and green RS485B connectors.
Wiring
A. RS-485
B. Service port
3.3Wire the enhanced core processor (option 2)
Use this section for an enhanced core processor installation.
3.3.1
3.3.2
Connect the 9-wire cable on an enhanced core processor
Prerequisites
Prepare and install the cable according to the instructions in the Micro Motion Liquified
Natural Gas Meter Installation Guide.
Procedure
1.Insert the stripped ends of the individual wires into the terminal blocks. Ensure that
no bare wires remain exposed.
2.Match the wires color for color.
3.Tighten the screws to hold the wires in place.
4.Ensure integrity of gaskets, then tightly close and seal all housing covers.
Wire the MVD Direct Connect I.S. barrier
Prerequisites
Prepare and install the cable according to the instructions in the Micro Motion Liquified
Natural Gas Meter Installation Guide.
16Micro Motion Liquified Natural Gas Meter
Wiring
Procedure
Connect the enhanced core processor to the barrier:
a. Connect the RS-485 wires from the enhanced core processor to the I.S. RS-485
terminals at the barrier (terminals 43 and 44), matching A and B. See the following
table and figure.
b. Connect the power supply wires from the core processor to the I.S. VDC terminals at
the barrier (terminals 42 and 41), matching positive and negative (+ and –). Do not
terminate the shields at the barrier. See the following table and figure.
Enhanced core processor and barrier I.S. terminalsTable 3-3:
c. Connect the RS-485 wires to the non-I.S. RS-485 terminals at the barrier (terminals 13
and 14). These wires will be used in the next step to connect the barrier to the remote
host. Do not terminate the shields at the barrier.
d. Connect the power supply wires to the non-I.S. VDC terminals at the barrier (terminals
11 and 12). These wires will be used in the next step to connect the barrier to the power
supply.
Barrier terminalsFigure 3-7:
A. I. S. terminals for connection to enhanced core processor
B. Non I.S. terminals for connection to remote host and power supply
Quick Start Guide17
Wiring
3.3.3Wire the power supply to the MVD Direct Connect I.S.
barrier
•You can connect multiple MVD Direct Connect installations to a single power
supply, as long as each installation receives sufficient power.
•For power supply to I.S. barrier connections, the power supply can be used to power
other equipment.
Procedure
Connect the power supply wires from the barrier, matching positive and negative (+
and –).
Barrier terminalsFigure 3-8:
3.3.4
A. I.S. terminals for connection to enhanced core processor
B. Non I.S. terminals for connection to remote host and power supply
Wire the remote host to the MVD Direct Connect I.S.
Barrier
1.Connect the RS-485 wire from the barrier to the RS-485 terminals at the remote
host.
18Micro Motion Liquified Natural Gas Meter
Barrier terminalsFigure 3-9:
A. I.S. terminals for connection to enhanced core processor
B. Non I.S. terminals for connection to remote host and power supply
2.Terminate the shields at the remote host.
Do not add external resistors. The barrier contains internal pull-up/pull-down and
termination resistors.
Wiring
Quick Start Guide19
Grounding
4Grounding
Topics covered in this chapter:
Ground a dual core processor
•
Ground the enhanced core processor
•
The meter must be grounded according to the standards that are applicable at the site.
The customer is responsible for knowing and complying with all applicable standards.
Micro Motion suggests the following guides for grounding practices:
•Use copper wire, 2,0 mm2 or larger wire size.
•Keep all ground leads as short as possible, less than 1 Ω impedance.
•Connect ground leads directly to earth, or follow plant standards.
4.1Ground a dual core processor
Use this procedure if your installation contains a dual core processor.
Note
Ground the processor to earth, or follow ground network requirements for the facility. Improper
grounding can cause measurement error.
Procedure
If the joints in the pipeline are not grounded, connect a ground wire to the internal or
external grounding screw located on the dual core processor.
20Micro Motion Liquified Natural Gas Meter
Grounding
Dual core processor grounding screwsFigure 4-1:
4.2
A. Internal grounding screws
B. External grounding screw
Ground the enhanced core processor
Use this procedure if your installation contains an enhanced core processor.
Note
Ground the processor to earth, or follow ground network requirements for the facility. Improper
grounding can cause measurement error.
Procedure
If the joints in the pipeline are not grounded, connect a ground wire to the internal or
external grounding screw located on the enhanced core processor.
A. Internal ground screw
B. External ground screw
C. Internal ground screw
22Micro Motion Liquified Natural Gas Meter
5Basic configuration
Topics covered in this chapter:
Power on
•
Sensor start up checklist
•
Specifications
•
5.1Power on
1.Before you apply power to the sensors, close and tighten all housing covers.
WARNING!
Operating the sensor without covers in place creates electrical hazards that can cause
death, injury, or property damage. Make sure safety barrier partition and covers for the
field-wiring, circuit board compartments, electronics module, and housing are all in
place before applying power to the processor.
Basic configuration
5.2
WARNING!
Using the service port to communicate in a hazardous area can cause an explosion.
Before using the service port to communicate with the core processor in a hazardous
area, make sure the atmosphere is free from explosive gases.
2.Turn on the electrical power at the power supply. The sensors will automatically
perform diagnostic routines. When the sensors have completed their power-up
sequence, the core processor should work in custody transfer secure mode without
alarms.
Note
The sensor is ready to receive process fluid approximately one minute after power-up (time
varies with models). However, approximately ten minutes are required for the electronics to
warm up to equilibrium. During this ten-minute period, the processor may exhibit minor
instability or inaccuracy.
Sensor start up checklist
Mounting checklist
□
Flange and gasket are securely installed on both sides of meter
□
Piping is supported upstream and downstream of the meter
□
Flow arrow same as the process flow direction
□
Upstream and downstream valves correctly opened or closed
Quick Start Guide23
Basic configuration
□
Cable connection is sealed and secure
Power wiring checklist
□
Terminals positive (+) and negative (–)
□
Ground terminal
□
DC
□
Power
□
18 to 30 VDC
5.3Specifications
Physical
Sensor housing304L stainless steel
Electronics housingPolyurethane-painted aluminum
Wetted materials316L stainless steel
LNGS06 weight4.6 kg
LNGM10 weight7.9 kg
Cable gland entrancesInlets: Two 3/4” NPT female conduit ports for 9-
With EN1092-1 PN40 F316/316L weld neck
flanges
wire connection to LNG sensors
Outlets: Two 1/2” — 14 NPT or M20 x 1.5 female
conduit ports for outputs and power supply
Electrical
Output connections
Power connectionsOne pair of wiring terminals accepts 24V DC
Digital communicationsModbus / RS-485 accepts data rates 4800,
24Micro Motion Liquified Natural Gas Meter
Not intrinsically safe type:
One pair of wiring terminals for RS-485 signal
cable connection for dual core processor and
enhanced core processor with MVD Direct Connect I.S. barrier
power for dual core processor and enhanced
core processor with MVD Direct Connect I.S.
barrier
9600, 19200, and 38400 baud for dual core processor and enhanced core processor with MVD
Direct Connect I.S. barrier
Output signals
Measurement variables• Mass flow
• Temperature
Accuracy and flow rate
Accuracy and flow rateLNGS06LNGM10
Batch accuracy±1.0% of batch±0.5% of batch
Temperature accuracy±1.0 °C ±0.5% of reading (proc-
ess temperature: -100 to 60 °C)
±1.0 °C ±1.0% of reading (process temperature: -196 to
-100 °C)
Maximum flow rates for liquids 1800 kg/hr18000 kg/hr
±1.0 °C ±0.5% of reading (process temperature: -100 to 60 °C)
±1.0 °C ±1.0% of reading (process temperature: -196 to
-100 °C)
Basic configuration
Note
For determining the performance capabilities of our meters, the typical batch/dispensing flow rates
are defined as follows:
•Batch time is no less than 3 minutes.
•The LNGM10 flow rate is no less than 20 kg/min and the LNGS06 flow rate is no less than 2 kg/
min.
•Fluid is liquid nitrogen or LNG.
Quick Start Guide25
Micro Motion Inc. USA
Worldwide Headquarters
7070 Winchester Circle
Boulder, Colorado 80301
T +1 303-527-5200
T +1 800-522-6277
F +1 303-530-8459
www.micromotion.com
Micro Motion Europe
Emerson Automation Solutions
Neonstraat 1
6718 WX Ede
The Netherlands
T +31 (0) 70 413 6666
F +31 (0) 318 495 556
www.micromotion.nl
*MMI-20032808*
MMI-20032808
Rev AB
2016
Micro Motion Asia
Emerson Automation Solutions
1 Pandan Crescent
Singapore 128461
Republic of Singapore
T +65 6777-8211
F +65 6770-8003
Micro Motion United Kingdom
Emerson Automation Solutions
Emerson Process Management Limited
Horsfield Way
Bredbury Industrial Estate
Stockport SK6 2SU U.K.
T +44 0870 240 1978
F +44 0800 966 181
Micro Motion Japan
Emerson Automation Solutions
1-2-5, Higashi Shinagawa
Shinagawa-ku
Tokyo 140-0002 Japan
T +81 3 5769-6803
F +81 3 5769-6844
The Emerson logo is a trademark and service mark of Emerson
Electric Co. Micro Motion, ELITE, ProLink, MVD and MVD Direct
Connect marks are marks of one of the Emerson Automation
Solutions family of companies. All other marks are property of their
respective owners.
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