PanaFlow HT

Panametrics ultrasonic SIL flow meter for liquids
Applications

Features and benefits

PanaFlow HT is a SIL-rated flow meter used for flow
measurement of liquids in either nominal or extremely highor low process temperatures. It is the first ultrasonic flow
meter to receive SIL (Safety Integrity Level) certification. Asa safety flow meter, or coker flow meter, the PanaFlow HT SIL
flow meter is designed for use in safety-critical applications
where reliability ensures reduction in risk to personnel, toplant assets, to the environment and to corporate reputation.
It also brings advantages to any non-safety criticalapplication where reliable ultrasonic flow measurement isrequired.

• No drifting flow measurement• No periodic calibration required• No maintenance• No restriction in the pipe
• Reliable measurement by design—(IEC61508 certification)• Flow measurement in extremely high-process temperature(600°C/1112°F) applications• Coker crude distillation• Flow measurement in extremely low-process temperature(-200°C/-328°F) applications• Vacuum distillation• Bi-directional measurement• Crackers• Hydrotreaters• Visbreakers• Crude oil• Liquefied natural gas (LNG)

PanaFlow gives you confidence in your flow
measurement
PanaFlow HT is a wetted ultrasonic flow meter that is SIL
certified (IEC61508) by design to give you confidence inyour flow measurement and to provide reliable flow meter
operation for both safety and process control systems. It is
the first SIL-rated ultrasonic flow meter on the market.
In addition to the peace of mind that SIL certification brings,
PanaFlow HT also has all the advantages of ultrasonicflow measurement over other traditional technologies—nomeasurement drifting, no periodic calibration requirement,
no restriction in the pipe, minimal pressure drop, nomaintenance, and no moving parts.

Fast and easy installation
Wetted systems typically provide higher accuracy thanclamp-on systems, but installation can be complicatedand difficult. If these systems are not installed with precisionand close attention to detail, reliability and accuracy may
not meet the product specifications. With the PanaFlow
HT system, we do the assembly work at the factory. The
necessary components are already installed, so all you needto do is bolt the end flanges into place.

Transit-time flow measurement
In this measurement method, two transducers serve as
both ultrasonic signal generators and receivers. They are in
acoustic communication with each other, meaning that thesecond transducer can receive ultrasonic signals transmitted
by the first 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 transittime 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 flowing
liquid, and its sign indicates the direction of flow.

Tf = (time in fluid)
Tw = (“dead Time” in buffer)

Buffers
BWT transducer

Active temperature compensation
Ultrasonic flow meters use transit time to determine theliquid or gas flow in a pipeline. Measured transit time consists
not only of the time the ultrasonic signal spends in a fluid,
but also of a portion of “dead time,” which is the time thatthe electrical signal is converted into an acoustical signal
and the time the acoustic signal travels inside the buffer.
To allow for the utmost accuracy, PanaFlow HT uses pulse
echo technique to actively measure the dead time. By
sending a pulse and measuring its reflection, the dead timeis measured in real time rather than using a preset value.
As a result of this GE invention, PanaFlow HT maintains its
accuracy as process temperature conditions dynamicallychange.

What is the PanaFlow HT system?
The PanaFlow HT system consists of the new XMT1000
electronics, BWT transducer system, and meter body.
The Panametrics XMT1000 is our latest transmitter and it
combines state-of-the-art flow measurement capability
with rigorous IEC61508 software and hardware testing.
The Bundle Waveguide Transducer (BWT) system is fieldproven to give accurate, drift-free, obstruction-less flow
measurement in the most difficult liquid applications, whileallowing access to the transducers at any time. The system
consists of buffer assemblies and transducers.
The buffer assemblies use waveguide bundles to efficiently
concentrate a greater amount of the transducer ultrasonicsignal into the process. At the same time, the bundles
act as buffers to protect the transducers from extreme
temperatures to ensure their unlimited life. This innovative
design greatly expands the range of possible applications.
The ultrasonic signal transmitted through the buffer
assemblies is powerful enough to penetrate all liquids,
including high-viscosity, high–molecular weight liquids andliquids. The meter body comes in various configurations forpipe sizes up to 16 in (400 mm) standard and up to 72 in(1800 mm) upon request. Also, the meter body is available inseveral materials and finishes.

Safety terminology

Safety Instrumented System (SIS)

Overall safety is defined as the freedom from unacceptablerisk of physical injury or of damage to the health of people,
either directly, or indirectly as a result of damage to property
or to the environment.

A Safety Instrumented System (or Safety Related System
per IEC61508) is used to implement one or more Safety
Instrumented Functions (SIFs).

Functional safety is the dependency on a system or pieceof equipment under control to operate correctly and it is justone part of overall safety.
The goal of functional safety is to design, build, operate, andmaintain systems in such a way as to prevent dangerous
failures, or at the very least, to control them when they arise.
A risk-based approach must be used to determine therequired performance of safety systems.
Acceptablerisk

Total systemrisk

SIF refers to a specific single set of actions and thecorresponding equipment needed to identify a single hazard
and act to return a system to a safe state. In a typical SIF,
sensors identify a hazard, a logic solver determines theappropriate action, and final elements perform the actions.

Sensor

Logic solver

Final element

SIS automatically takes an industrial process to a safe state
when specified conditions are violated. It permits a process
to move forward ina safe manner when specified conditions
allow.

How does PanaFlow HT fit with functional safety?
SIS

Other risk reduction

IEC61508 standards
The common use of electronic control systems and theirimpact on equipment safety led to the development of
the IEC 61508 family of standards, which focuses on thefunctional safety of electrical/electronic/programmablesafety-related systems.
These international standards, introduced in 1998, led tothe development of further standards (IEC61511 for Process
Industry, as an example).
IEC61508

IEC61511
Process sector

IEC62016
Machinery sector

IEC61513
Nuclear sector

PanaFlow HT is a SIL2 ultrasonic flow meter (sensor) with thecapability of a SIL3 system achievable in a redundant design
configuration.
It is IEC61508 certified through a complete design validationfrom a third party organization. By achieving a third party
certification, we have proven the required design rigor
through the product safety lifecycle and functional safety
management. This rigor makes PanaFlow HT the optimal
ultrasonic flow meter for your safety or process control
system.

Overall operation and performance
Fluid types

Configurations

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

1P1R - one path, one electronics
2P1R - two path, one electronics
1P2R - one path, two redundant electronics
1P3R - one path, three redundant electronics
1P4R - one path, four redundant electronics
2P4R - two path, four redundant electronics
Other designs available upon request

Flow measurement
Patented Correlation Transit-Time™ mode
Meter sizes
3 in to 16 in (80 mm to 600 mm) standard
Optional: sizes up to 72 in (1800 mm) are available uponrequestAccuracy±0.5% of reading
3 in to 4 in (80 mm to 100 mm) meter sizes,
range: 7 to 40 ft/s (2.13 to 12.19 m/s)
6 in to 36 in (150 mm to 900 mm) meter sizes, range: 3 to 40
ft/s (0.91 to 12.19 m/s)
±0.9% of reading
3 in to 4 in (80 mm to 100 mm) meter sizes,
range: 3 to 7 ft/s (0.91 to 2.13 m/s)
Final installation assumes a fully developed flow profile(typically 10 diameters upstream and 5 diameters
downstream of straight pipe run) and single phase fluids.
Applications with piping arrangements that induce swirl (e.g.,
two out-of-plane elbows) may require additional straight run
or flow conditioning.
Larger meter sizes are available upon request.
Repeatability±0.25% of reading
3 in to 4 in (80 mm to 100 mm) meter sizes,
range: 7 to 40 ft/s (2.13 to 12.19 m/s)
6 in to 36 in (150 mm to 900 mm) meter sizes, range: 3 to 40
ft/s (0.91 to 12.19 m/s)
±0.5% of reading
3 in to 4 in (80 mm to 100 mm) meter sizes,
range: 3 to 7 ft/s (0.91 to 2.13 m/s)

Meter body/transducer
Meter body materials
Carbon steel (ASTM A106 Gr. B - ASTM A105)
Stainless steel (ASTM A312 Gr 316/316L - A182 Gr. 316/316L)
9Cr-1Mo (ASTM A335 Gr. P9 - ASTM A182 Gr. F9)
Optional: other materials available upon request
Transducer system and material
Bundle Waveguide Technology™ (BWT) System transducer
and holder
316L stainless steel
Optional: Other alternative buffer materials are available
upon request
Transducer temperature ranges
Normal temperatures: -310°F to 600°F (-190°C to 315°C)
Liquids, high temperatures: –310°F to 1112°F (–190°C to 600°C)
Pressure range
Up to ANSI 600 class pressure rating based onmaterial of construction
Optional: Up to ANSI 2500 class maximum allowable flange
operating pressure at temperature in either ANSI or DIN
designs
Transducer classifications
Explosion-proof Class I, Division 1, Groups B, C, & D ATEX:
Flameproof II 2 G Ex d IIC T6
IECEx: Flameproof Ex d IIC T6

Range (bidirectional)
0.1 to 40 ft/s (0.03 to 12.19 m/s)
Rangeability (overall)
400:1
SIL certification
IEC61508 certified
SIL2 certification with single design system
SIL3 certification with redundant design system
Bundle Waveguide Technology™ system, FTPA normal and hightemperature buffers

Electronics
Enclosures
Powder coated aluminum (copper free) or stainless steel(SS316), IP66/IP67)
Electronics certifications
Explosion-proof Class I, Division 1, Groups B, C, and D
ATEX - Flameproof II 2 G Ex d IIC T6 Gb
IECEx - Flameproof Ex d IIC T6 Gb
ROHS compliance(Category 9 exemption)
CE
WEEE compliance

Digital interfaces• Standard: RS485/Modbus®
• Optional: HART® 7.0 protocol, with four dynamic variables,
includes one additional 4 to 20 mA analog output NAMUR
NE43• Optional: Foundation Fieldbus® FISCO, LAS capable NAMUR
NE107 with five AI blocks and a PID block
Power supplies
Standard: 100-240 VAC (50/60 Hz)
Optional: 12-28 VDC
Wiring connection

Electronics mounting¾” NPT
M20

Remote mounting

Operating temperature

Channels
One or two (two channels for two-path averaging)
three path measurement available upon request-40°F to 149°F (-40°C to 65°C)**Maximum ambient temperature of 140°F (60°C) withfoundation fieldbus option selected.

Display languages

Storage temperature

English-40°F to 158°F (–40°C to 70°C)

KeypadData logging

Built-in magnetic, six-button keypad, for full functionality
operation

XMT1000 meter logging Vitality software logging

Inputs/outputs
Standard• One 4 to 20 mA isolated output, 600 Ohm maximum load,
NAMUR NE43
• One additional output, may be configured as either a pulse
or frequency output
Optional input/output• One 4 to 20 mA (SIL) isolated output, 600 Ohm maximum
load, NAMUR NE43 (required for SIL installation)• Two additional 4 to 20 mA isolated outputs, 600 Ohm
maximum load, NAMUR NE43
• One or two 4 to 20 mA isolated inputs, 24-VDC loop power,
NAMUR NE43
• One or two isolated, three-wire RTD (temperature) inputs,–148°F to 662°F (–100°C to 350°C), 100 Ohm or 1000 Ohm
platinum• One or two isolated, four-wire RTD (temperature) inputs,–148°F to 662°F (–100°C to 350°C), 100 Ohm or 1000 Ohm
platinum

Panametrics XMT1000 transmitter

Ordering information
A

-

B

C

D

E

F

G

-

H

-

I

J

K

L

-

M

-

Z
Model
PFHT meter body system (1P,1R)
PFHT meter body system (2P,1R)
PFHT meter body system (1P,2R)
PFHT meter body system (1P,3R)
PFHT meter body system (1P,4R)
PFHT meter body system (2P,4R)

PFHT1P1R
PFHT2P1R
PFHT1P2R
PFHT1P3R
PFHT1P4R
PFHT2P4R

Meter body size
3in (80mm)
4in (100mm)
6in (150mm)
8in (200mm)
10in (250mm)
12in (300mm)
14in (350mm)
16in (400mm)
Special size

03
04
06
08
10
12
14
16
S

Meter body flange
150# Flange
300# Flange
600# Flange
Special flange

15
30
60
S

Meter body material
Carbon steel
Stainless steel
9Cr-1Mo
Special material

CS
SS
9C
S

Meter body paintNo paint
Standard gray epoxy paint
Gray high temp Tmax=400°C
Custom paint

A
B
C
S

Meter body design
ASME B31.3 and NACE MR0103
PED compliant and NACE MR0103

A
P

Meter body NDE
NDE: MPI, X-ray, and hydroNDE: MPI, X-ray, hydro and PMI
NDE: LPI, X-ray, and hydroNDE: LPI, X-ray, hydro and PMI

1
2
3
4

Transducer cable (select seperately)
Remote cable (select separately)

R

Transducers and buffers
0.5 MHz HT (-200 to 600°C)
0.5 MHz NT (-200 to 315°C)
0.2 MHz HT (-200 to 600°C)
0.2 MHz NT (-200 to 315°C)

HT05
NT05
HT02
NT02

Junction boxes
Explosion proof AL enclosure
Explosion proof 316 SS enclosure

UX
UXSS

Certification
Div 1,Class 1, Group B,C,D
ATEX II 2 G hazardous location
IECEx hazardous locations

1
2
3

Certifications
3IN,2-pt cal
4IN,2-pt cal
6IN,2-pt cal
8IN,2-pt cal
10IN,2-pt cal
12IN,2-pt cal
14IN,2-pt cal
16IN,2-pt cal
3IN,2-pt cal (ISO17025)
4IN,2-pt cal (ISO17025)
6IN,2-pt cal (ISO17025)
8IN,2-pt cal (ISO17025)
10IN,2-pt cal (ISO17025)
12IN,2-pt cal (ISO17025)
14IN,2-pt cal (ISO17025)
16IN,2-pt cal (ISO17025)
Special calibration

03A
04A
06A
08A
10A
12A
14A
16A
03B
04B
06B
08B
10B
12B
14B
16B
S

System transmitters (select seperately)
XMT1000 (1) (select separately)
XMT1000 (2) (select separately)
XMT1000 (3) (select separately)
XMT1000 (4) (select separately)
XMT1000 SIL (1) (select separately)
XMT1000 SIL (2) (select separately)
XMT1000 SIL (3) (select separately)
XMT1000 SIL (4) (select separately)
XMT1000 (1), XMT1000 SIL (1) (select separately)
XMT1000 (1), XMT1000 SIL (2) (select separately)
XMT1000 (1), XMT1000 SIL (3) (select separately)Special configuration

A
B
C
D
E
F
G
H
I
J
K
S

PFHT1P1R

–

03

15

CS

A

A

1

–

R

–

HT05

UX

1

03A

–

A

–

0
S

SpecialNone
Special0(Example part number)

1P1R design“Nominal Pipe Sizein (mm)”“FTF lengthin (mm)”150#“Widthin (mm)”“Heightin (mm)”“FTF lengthin (mm)”300#“Widthin (mm)”“Heightin (mm)”“FTF lengthin (mm)”600#“Widthin (mm)”“Heightin (mm)”3 (80)

36 (914.4)

38 (965.2)

7.48 (190)

36 (914.4)

38 (965.2)

8.26 (210)36 (914.4)

38 (965.2)

8.25 (209.55)

4 (100)36 (914.4)

39 (990.6)

9.05 (230)

38 (965.2)

39 (990.6)

10.04 (255)

38 (965.2)

39 (990.6)

10.75 (273.05)

6 (150)40 (1016)

42 (1066.8)

11.02 (280)40 (1016)

42 (1066.8)

12.59 (320)40 (1016)

42 (1066.8)

14 (355.6)

8 (200)42 (1066.8)

43 (1092.2)

13.58 (345)

42 (1066.8)

43 (1092.2)

14.96 (380)44 (1117.6)

43 (1092.2)

16.5 (419.1)

10 (250)44 (1117.6)

45 (1143)

15.94 (405)

44 (1117.6)

45 (1143)

17.52 (445)

46 (1168.4)

45 (1143)

20 (508)12 (300)

46 (1168.4)

47 (1193.8)

19.09 (485)

48 (1219.2)

47 (1193.8)

20.47 (520)

48 (1219.2)

47 (1193.8)

22 (558.8)

14 (350)48 (1219.2)

48 (1219.2)

21.06 (535)

48 (1219.2)

48 (1219.2)

23.03 (585)

50 (1270)

48 (1219.2)

23.75(603.25)

16 (400)

50 (1270)

50 (1270)

23.42 (595)

50 (1270)

50 (1270)

25.59 (650)52 (1320.8)

50 (1270)

27 (685.8)“Nominal Pipe Sizein (mm)”“FTF lengthin (mm)”150#“Widthin (mm)”“Heightin (mm)”“FTF lengthin (mm)”300#“Widthin (mm)”“Heightin (mm)”“FTF lengthin (mm)”600#“Widthin (mm)”“Heightin (mm)”3 (80)

36 (914.4)

40 (1016)

7.48 (190)

36 (914.4)

40 (1016)

8.27 (210)36 (914.4)

40 (1016)

8.25 (209.55)
10.75 (273.05)

2P1R design

4 (100)36 (914.4)

42 (1066.8)

9.05 (230)

38 (965.2)

42 (1066.8)

10.04 (255)

38 (965.2)

42 (1066.8)

6 (150)40 (1016)

44 (1117.6)

11.02 (280)40 (1016)

44 (1117.6)

12.6 (320)40 (1016)

44 (1117.6)

14 (355.6)

8 (200)42 (1066.8)

45 (1143)

13.58 (345)

42 (1066.8)

45 (1143)

14.96 (380)44 (1117.6)

45 (1143)

16.5 (419.1)

10 (250)44 (1117.6)

47 (1193.8)

15.94 (405)

44 (1117.6)

47 (1193.8)

17.52 (445)

46 (1168.4)

47 (1193.8)

20 (508)12 (300)

44 (1117.6)

47 (1193.8)

19.09 (485)46 (1168.4)

47 (1193.8)

20.47 (520)

46 (1168.4)

47 (1193.8)

22 (558.8)

14 (350)

46 (1168.4)

42 (1066.8)

21.06 (535)

48 (1219.2)

42 (1066.8)

23.03 (585)

48 (1219.2)

42 (1066.8)

23.75 (603.25)

16 (400)

48 (1219.2)

42 (1066.8)

23.42 (595)

50 (1270)

42 (1066.8)

25.59 (650)50 (1270)

42 (1066.8)

27 (685.8)

1P2R design“Nominal Pipe Sizein (mm)”“FTF lengthin (mm)”150#“Widthin (mm)”“Heightin (mm)”“FTF lengthin (mm)”300#“Widthin (mm)”“Heightin (mm)”“FTF lengthin (mm)”600#“Widthin (mm)”“Heightin (mm)”3 (80)

50 (1270)

38 (965.2)

7.48 (190)

52 (1320.8)

38 (965.2)

8.27 (210)52 (1320.8)

38 (965.2)

8.25 (209.55)
10.75 (273.05)

4 (100)56 (1422.4)

39 (990.6)

9.05 (230)

58 (1473.2)

39 (990.6)

10.04 (255)

58 (1473.2)

39 (990.6)

6 (150)70 (1778)

42 (1066.8)

11.02 (280)70 (1778)

42 (1066.8)

12.6 (320)70 (1778)

42 (1066.8)

14 (355.6)

8 (200)82 (2082.8)

43 (1092.2)

13.58 (345)

82 (2082.8)

43 (1092.2)

14.96 (380)84 (2133.6)

43 (1092.2)

16.5 (419.1)“Nominal Pipe Sizein (mm)”“FTF lengthin (mm)”150#“Widthin (mm)”“Heightin (mm)”“FTF lengthin (mm)”300#“Widthin (mm)”“Heightin (mm)”“FTF lengthin (mm)”600#“Widthin (mm)”“Heightin (mm)”

1P3R design

3 (80)

66 (1676.4)

38 (965.2)

7.48 (190)

66 (1676.4)

38 (965.2)

8.27 (210)66 (1676.4)

38 (965.2)

8.25 (209.55)

4 (100)76 (1930.4)

39 (990.6)

9.05 (230)78 (1981.2)

39 (990.6)

10.04 (255)

78 (1981.2)

39 (990.6)

10.75 (273.05)

6 (150)100 (2540)

42 (1066.8)

11.02 (280)100 (2540)

42 (1066.8)

12.6 (320)100 (2540)

42 (1066.8)

14 (355.6)

8 (200)122 (3098.8)

43 (1092.2)

13.58 (345)122 (3098.8)

43 (1092.2)

14.96 (380)122 (3098.8)

43 (1092.2)

16.5 (419.1)“FTF lengthin (mm)”150#“Widthin (mm)”“Heightin (mm)”“FTF lengthin (mm)”300#“Widthin (mm)”“Heightin (mm)”“FTF lengthin (mm)”600#“Widthin (mm)”“Heightin (mm)”

1P4R design“Nominal Pipe Sizein (mm)”3 (80)

82 (2082.8)

38 (965.2)

7.48 (190)

82 (2082.8)

38 (965.2)

8.27 (210)82 (2082.8)

38 (965.2)

8.25 (209.55)

4 (100)98 (2489.2)

39 (990.6)

9.05 (230)

98 (2489.2)

39 (990.6)

10.04 (255)

98 (2489.2)

39 (990.6)

10.75 (273.05)

6 (150)129 (3276.6)

42 (1066.8)

11.02 (280)129 (3276.6)

42 (1066.8)

12.6 (320)129 (3276.6)

42 (1066.8)

14 (355.6)

8 (200)160 (4064)

43 (1092.2)

13.58 (345)

160 (4064)

43 (1092.2)

14.96 (380)160 (4064)

43 (1092.2)

16.5 (419.1)“Nominal Pipe Sizein (mm)”“FTF lengthin (mm)”150#“Widthin (mm)”“Heightin (mm)”“FTF lengthin (mm)”300#“Widthin (mm)”“Heightin (mm)”“FTF lengthin (mm)”600#“Widthin (mm)”“Heightin (mm)”

2P4R design

3 (80)

88 (2235.2)

38 (965.2)

7.48 (190)

88 (2235.2)

38 (965.2)

8.27 (210)

88 (2235.2)

38 (965.2)

8.25 (209.55)

4 (100)100 (2540)

39 (990.6)

9.05 (230)

100 (2540)

39 (990.6)

10.04 (255)

100 (2540)

39 (990.6)

10.75 (273.05)

6 (150)132 (3352.8)

42 (1066.8)

11.02 (280)132 (3352.8)

42 (1066.8)

12.6 (320)132 (3352.8)

42 (1066.8)

14 (355.6)

8 (200)164 (4165.6)

43 (1092.2)

13.58 (345)

164 (4165.6)

43 (1092.2)

14.96 (380)164 (4165.6)

43 (1092.2)

16.5 (419.1)

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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