PanaFlow LZ System

Panametrics ultrasonic liquid flow meter
Applications
The PanaFlow LZ is a complete ultrasonic ﬂow meter system
for liquid applications, leveraging the state-of-the-art
XMT1000 electronics platform. It can be used in applications
such as:• Hydrocarbon liquids• Crude oils
• Internal allocation metering

Features and benefits
No drifting, no periodic
calibration required

No loss of process control, optimizationof assets and efficiency, no downtime
or expense from calibration

No pressure drop

No wasted energy from running apump or purchase of a larger sizepump

No restriction in the pipe

Contamination will not affect meter’smeasurement (drifting) or any
damage to meter• Loading/unloading

No ﬁlters or strainers• Pipeline metering

Bi-directional
measurement• Fuel oils
• Water/cooling water/wastewater• Chemicals• Blending• Solvents• Weak acid solutions

No maintenance cost
No additional meters required

No moving parts

No loss of process control, optimizationof assets and efficiency, no downtime
or expense from calibration

Field replaceable
transducers

No risk in measurement, no shutdown
costs for transducer maintenanceAll-welded design

No risk of leaks through o-rings notseated correctly or risk of material
corrosion

Explosion-prooftransducer design

More power to transducer at higher
voltages, less risk of attenuation in ﬂuid

Full ultrasonic product line

Meet more needs with full productportfolio; one source for all ultrasonicliquid ﬂow meters

SIL Certification

Optional SIL certified configuration forsafety criticall applications

Reliable flow measurement is easy
on your budget
The PanaFlow LZ is offered as a one- or two-path wetted,
ultrasonic ﬂow meter that brings all of the advantages ofultrasonic technology at a very affordable value.

Unlike other ﬂow measurement technologies, the PanaFlow
LZ does not require maintenance because it does not haveany obstruction in the ﬂow path that could clog the line
nor does it have any moving parts that could be damagedby the ﬂowing ﬂuid. Also, due to the inherent nature ofultrasonic ﬂow measurement, PanaFlow LZ measurements
are not affected by changing process conditions, suchas temperature, pressure and conductivity variations. Inaddition, because the measurements do not drift over time,
no periodic calibration is required. Thus, the PanaFlow LZ
is a very attractive ﬂow meter, providing a lower overall
total cost of ownership along with the superb reliability andperformance expected from a Panametrics ultrasonic ﬂow
meter.

Local or remote electronics

Panametrics offers several electronics packages that can bemated with the PanaFlow meter system. For local electronics
that are factory installed on the meter body, select thePanaFlow XMT1000 for liquid applications. Local electronics
are not recommended on applications above 149°F (65°C).
Electronics platforms other than PanaFlow XMT1000 arealso available for remote locations. (Please see ﬂow meterelectronics datasheets for instrument specifications andordering information.)
All electronics packages ordered with PanaFlow LZ metersystems are programmed with setup information based onyour application, so the system is ready to use as soon as
the meter body is installed. When remote electronics areused, transducer cabling must be run between the PanaFlow
meter system and the ﬂow meter electronics. When local
electronics are integrated with the system the transducer
wiring is already complete, further simplifying the ﬁeldinstallation.

Reliable field-provenultrasonic technology

PanaFlow LZ leverages Panametrics’ long heritage ofultrasonic transducer technology, which is proven inthousands of successful installations in liquid, gas, steam,and ﬂare applications. In addition to standard wetted
transducers, the PanaFlow LZ offers the option of Bundle
Waveguide Technology to expand the range of possible

applications. The BWT system consists of buffer assemblies
and transducers. The buffer assemblies use waveguidebundles to efficiently concentrate a greater amount of thetransducer ultrasonic signal into the process, providing better
signal integrity. At the same time, the bundles act as buffers
to protect the transducers from extreme temperatures tomaximize the transducer life cycle and to allow transducer
replacement under operating conditions.

Transit time flow measurement

In this method, two transducers serve as both ultrasonicsignal generators and receivers. They are in acoustic
communication with each other, meaning the second
transducer can receive ultrasonic signals transmitted by theﬁrst transducer and vice versa.
In operation, each transducer functions as a transmitter,
generating a certain number of acoustic pulses, and then asa receiver for an identical number of pulses. The time interval
between transmission and reception of the ultrasonic signals
is measured in both directions. When the liquid in the pipe is
not ﬂowing, the transit time downstream equals the transit
time upstream. When the liquid is ﬂowing, the transit time
downstream is less than the transit time upstream.
The difference between the downstream and upstream
transit times is proportional to the velocity of the ﬂowingliquid, and its sign indicates the direction of ﬂow.
Downstream wetted
transducer

Upstream wetted
transducer

Fast and easy installation

The integrated PanaFlow meter system is fast and easy toinstall because components are already installed in themeter body. A PanaFlow meter body is composed of a lengthof carbon steel or stainless steel pipe with ﬂanged ends
and transducer ports rated to the application’s pressure
requirements, and either one or two pairs of pre-installed
ultrasonic transducers. The system is factory assembled andtested to ensure that it meets strict quality control standards.

PanaFlow LZ part number
LZ-B-

C-

DEFGHI-

J-KL

M-

Z(Description)
Model:
PanaFlow LZ liquid ultrasonic ﬂow meter system
Paths:
Single path meter body
Dual path meter body

1
2

Meter body size:
2 in. (50 mm) meter body
3 in. (80 mm) meter body
4 in. (100 mm) meter body
6 in. (150 mm) meter body
8 in. (200 mm) meter body
10 in. (250 mm) meter body
12 in. (300 mm) meter body
14 in. (350 mm) meter body
16 in. (400 mm) meter body
18 in. (450 mm) meter body
20 in. (500 mm) meter body
24 in. (600 mm) meter body002003004006008010012014016018020024

Pipe schedule:
STD Schedule meter body (CS system)XS Schedule meter body (CS system)
40S Schedule meter body (SS system)
80S Schedule meter body (SS system)

A
B
C
D

Process flange rating:
ANSI 150# RF (SO) process ﬂange
ANSI 300# RF (SO) process ﬂange
ANSI 600# RF (SO) process ﬂange

A
B
C

Meter body material:
Carbon steel (ASTM A106 Gr. B/A105) meter bodymaterial
Stainless steel (A312 Gr. 316/316L or A358 316/316L Cl.2EFW) meter body material

12System design:
System designed ASME B31.3 & NACE MR0175/MR0103
System designed ASME B31.3, CRN & NACE MR0175/MR0103
System designed PED & NACE MR0175/MR0103

AC
P

Meter body paint:
No paint (SS systems only)
System B high-temperature primer (400°C/750°F)
System C epoxy paint (230°C/450°F)

A
B
C

Meter body testing:Standard NDE (hydrostatic testing, radiography (ifapplicable), and LPI)

1Electronic mounting:Local mount: XMT1000 (Max 65C)
Local mount: XMT868i (Max 65C)Remote mount: cable must be ordered separately

L1000
L868I
RM

Transducer/butter system:
Pair of WT wetted transducers (SS) with BNC
connector and 316SS Panadapta buffers (-40 to 175°C
or -40 to 347°F operating temperature)
Pair of WT wetted transducers (SS) with submersible
connector and 316SS Panadapta buffers (-40 to 175°C
or -40 to 347°F operating temperature), no junction
box option and remote cable required.
Pair of BWT1 wetted transducers (SS) with BNC
connector and 316SS FWPA buffers (-40 to 100°C or-40 to 212°F operating temperature)Pair of BWT1 wetted transducers (SS) with BNC
connector and 316SS FWPA buffers (-40 to 250°C or-40 to 482° F operating temperature)

1234Transducer junction box/hazardous area rating:No junction box on the transducer
USA/CAN for Div 1, Class 1 areas (WT: Groups C&D,BWT1: Group B)
ATEX II 2 G (KEMA 01ATEX2045 X) Ex d IIc T6
IECEx (IECEx KEM09.0009X) Ex d IIc T600
AXEX
UX

Calibration:
3 points as found, 2 points as left
3 points as found, 2 points as left (ISO 17025)
3 points as found, 2 points as left (SIL - requires
XMT1000 with SIL configuration)
3 points as found, 2 points as left (ISO 17025;
SIL - requires XMT1000 with SIL configuration)
Special calibration

12
SL1SL2S

Specials:
None
SPecial0S
LZ-

2-

008-

A

A

2CA

1-

LM-

1

AX

1-0(example part number string)Specifications
Operation and performance

Temperature range

Fluid types

WT Transducers:

Liquids: acoustically conductive ﬂuids, including most cleanliquids, and many liquids with small amounts of entrainedsolids or gas bubbles

BWT Transducers:-40 to 100°C (-40 to 212°F)			
-40 to 250°C (-40 to 482°F)
Temperature rating of -20°C if used with carbon steel meterbody.

Flow measurement
Correlation transit time modelPaths
1 Path: 2 in. to 24 in. (50 mm to 600 mm) pipe
2 Path: 3 in. to 24 in. (80 mm to 600 mm) pipe
Pipe sizes
2 in. to 24 in. (50 mm to 600 mm)
Pipe material
Carbon steel
Stainless steel (316/316L)
Accuracy±0.5% of reading for velocity above 2 ft/s (0.6 m/s) up to40 ft/s (12.2 m/s) with a resolution of ± 2 mm/sAccuracy statement assumes measurement of asingle phase homogenous liquid with a fully developed
symmetrical ﬂow proﬁle passing through the meter.
Applications with piping arrangements that create an
asymmetrical ﬂow proﬁle may require extended piping
straight runs and/or ﬂow conditioning for the meter toperform to this speciﬁcation.
Repeatability±0.3% of reading typicalRange (bidirectional)±0.1 to 40 ft/s (0.03 to 12.19 m/s)
Measurement parameters
Dependent upon meter electronics used. Please refer toindividual ﬂow meter electronics product data sheet.

-40 to 175°C (-40 to 347°F)

Transducer material
316L Stainless steel (buffers)
Meter body materials
Carbon steel
Stainless steel (316/316L)
Certiﬁcation
Electronics/Transducers:
Explosionproof Class I, Division 1, Groups B,C&D
ATEX Flameproof II 2 G Ex d IIC T6
IECEx Flameproof II 2 G Ex d IIC T6
Other certifications available upon request based on
BWT transducer.
Flowcell:
NACE MR0175 and MR0103
PED 2014/68/EU

Transducer cables
Integral cables• Mineral insulated cables with potted cable glands (forNorth America and Canada hazardous locations)• Armored ﬂame retardant coaxial cables with ATEX/IECEx
certified cable glands (for European hazardous locations)Remote cables
ATEX/IECEx: Armored RG62 for ATEX/IECEx
US/CAN: Non-armored RG62, conduit not included
Remote cables are not included and must be orderedseparately. Maximum cable length is 1000 ft (300 m).
Weights and dimensions

Electronics/transmitter(Refer to drawings 712-2122 to 712-2125)

See electronics for specifications.

Drawing

Drawing description

712-2122

General arrangement drawing, PanaFlow LZ, 2 in. and 3 in., 1 path,
2 traverse, tilted diameter712-2123General arrangement drawing, PanaFlow LZ, 4 in. to 24 in., 1 path,
1 traverse, tilted diameter712-2124

General arrangement drawing, PanaFlow LZ, 3 in. and 4 in., 2path, 1 traverse, tilted diameter712-2125

General arrangement drawing, PanaFlow LZ, 6 in. to 24 in., 2 path,
1 traverse, mid-radius

Note: For SIL application, SIL flow meter must be ordered withproper configuration.

Meter body and transducer
Pressure rating
Up to maximum allowable ﬂange operating pressure attemperature, per ASME B16.5

Panametrics, a Baker Hughes Business, provides solutions in
the toughest applications and environments for moisture,oxygen, liquid and gas flow measurement. Experts in flaremanagement, Panametrics technology also reduces flareemissions and optimizes performance.
With a reach that extends across the globe, Panametrics’
critical measurement solutions and flare emissions
management are enabling customers to drive efficiency
and achieve carbon reduction targets across criticalindustries including: Oil & Gas; Energy; Healthcare; Water andWastewater; Chemical Processing; Food & Beverage andmany others.
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