Atec G601 User Manual
Technical Specification
G601
0.3 to 63 in
-40 to +392 °F
FLUXUS® G601
Portable Ultrasonic Flow Measurement of Gas
Portable instrument for non-intrusive, quick ultrasonic flow measurement with clamp-on technology for all
types of piping
Features
• Precise bi-directional and highly dynamic flow measurement with the non-intrusive clamp-on technology
• High precision at fast and slow flow rates, high temperature and zero point stability
• Portable, easy-to-use flow transmitter with 2 flow channels, multiple inputs/outputs, an integrated data logger
with a serial interface
• Water and dust-tight (NEMA 4); resistant against oil,
many liquids and dirt
• Li-Ion battery provides up to 14 hours of measurement
operation
• Automatic loading of calibration data and transducer
detection for a fast and easy set-up (less than 5 min),
providing precise and long-term stable results
• User-friendly design
• Transducers available for a wide range of inner pipe
diameters ( ) and fluid temperatures
()
• Probe for wall thickness measurement available
• Robust, water-tight (NEMA 4) transport case with comprehensive accessories
• QuickFix for fast mounting of the flow transmitter in difficult conditions
Applications
FLUXUS supported by handle
Measurement with transducers mounted by the portable
Variofix VP
Designed for industrial use in harsh environments, in gas
processing and natural gas extraction, chemical industry
and in the petroleum industry. Practical applications:
• Measurement on natural gas pipelines and in natural
gas storage installations
• Measurement of synthesized gas and injection gas
• Measurement for the gas supply industry
• Supervision of permanently installed meters, service
and maintenance
Measurement equipment in transport case
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FLUXUS® G601 Technical Specification
Table of Contents
Function ........................................................................................................................................................... 3
Measurement Principle ..................................................................................................................................... 3
Calculation of Volumetric Flow Rate ................................................................................................................. 3
Number of Sound Paths.................................................................................................................................... 4
Typical Measurement Setup ............................................................................................................................. 5
Standard Volumetric Flow Rate ........................................................................................................................ 5
Flow Transmitter ............................................................................................................................................. 6
Technical Data .................................................................................................................................................. 6
Dimensions ....................................................................................................................................................... 8
Standard Scope of Supply ................................................................................................................................ 9
Connection of Adapters................................................................................................................................... 10
Example for the Equipment of a Transport Case ............................................................................................ 11
Transducers................................................................................................................................................... 12
Transducer Selection ...................................................................................................................................... 12
Transducer Order Code .................................................................................................................................. 15
Technical Data ................................................................................................................................................ 16
Transducer Mounting Fixture ...................................................................................................................... 21
Coupling Materials for Transducers............................................................................................................ 23
Damping Mats (optional) .............................................................................................................................. 24
Connection Systems..................................................................................................................................... 25
Transducer Cable............................................................................................................................................ 25
Clamp-on Temperature Probe (optional) .................................................................................................... 26
Wall Thickness Measurement (optional)..................................................................................................... 27
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Technical Specification FLUXUS® G601
t
0
t1t
2
V
·
V
·
Function
Measurement Principle
In order to measure the flow of a medium in a pipe, ultrasonic signals are used, employing the transit time difference principle. Ultrasonic signals are emitted by a transducer installed on the pipe and received by a second transducer. These signals are emitted alternately in the flow direction and against it.
As the medium in which the signals propagate is flowing, the transit time of the ultrasonic signals in the flow
direction is shorter than against the flow direction.
The transit time difference, ∆t, is measured and allows the flowmeter to determine the average flow velocity
along the propagation path of the ultrasonic signals. A flow profile correction is then performed in order to obtain the area averaged flow velocity, which is proportional to the volumetric flow rate.
Two integrated microprocessors control the entire measuring process. This allows the flowmeter to remove
disturbance signals, and to check each received ultrasonic wave for its validity which reduces noise.
Path of the ultrasonic signal Transit time difference ∆t
Calculation of Volumetric Flow Rate
= kRe . A . ka . ∆t/(2 . tfl)
where
= volumetric flow rate
k
= fluid mechanics calibration factor
Re
A = cross-sectional pipe area
k
= acoustical calibration factor
a
∆t = transit time difference
t
= transit time in the medium
fl
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FLUXUS® G601 Technical Specification
a
a
a > 0
a < 0
Number of Sound Paths
The number of sound paths is the number of transits of the ultrasonic signal through the medium in the pipe.
Depending on the number of sound paths, the following methods of installation exist:
• reflect arrangement
The number of sound paths is even. Both of the transducers are mounted on the same side of the pipe.
Correct positioning of the transducers is easier.
• diagonal arrangement
The number of sound paths is odd. Both of the transducers are mounted on opposite sides of the pipe.
• direct mode
Diagonal mode with 1 sound path. This should be used in the case of a high signal attenuation by the medium, pipe or coatings.
The preferred method of installation depends on the application. While increasing the number of sound paths
increases the accuracy of the measurement, signal attenuation increases as well. The optimum number of
sound paths for the parameters of the application will be determined automatically by the transmitter.
As the transducers can be mounted with the transducer mounting fixture in reflect arrangement or diagonal arrangement, the number of sound paths can be adjusted optimally for the application.
.
a = transducer distance
Reflect arrangement, number of sound paths: 2
Diagonal arrangement, number of sound paths: 3
Direct mode, number of sound paths: 1 Direct mode, number of sound paths: 1,
negative transducer distance
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Technical Specification FLUXUS® G601
U L T R A S O N I C F L O W M E T E R
1 3
2
0
4 65
7
8
N E X T
Q
O N
Q -
Q +
M U X
D IS P
Q
O FF
L IG H T
E N T E R
C
O N
C H A N N E L A
C H A N N E L B
9
D IS P
E N T E R
3 x O F F
M O D E
B R K
B A TT E R Y
PT
transducers
damping mat
transmitter
RS232
outputs
inputs
power supply unit/battery charging unit
temperature probee.g. external pressure sensor
V·V·V·V
·
Typical Measurement Setup
to an external process pressure and process temperature measurement for standard volumetric flow rate calculation
Example of a measurement setup in reflect arrangement with connection of the inputs
Standard Volumetric Flow Rate
The standard volumetric flow rate can be selected as physical quantity to be measured. It will be calculated internally by:
= . p/pN . TN/T . 1/K
N
where
= standard volumetric flow rate
N
= operating volumetric flow rate
p
= standard pressure (absolute value)
N
p = operating pressure (absolute value)
T
= standard temperature in K
N
T = operating temperature in K
K = compressibility coefficient of the gas
conditions and at standard conditions Z/Z
The operational pressure p and the operational temperature T of the medium will be entered directly as fixed
values into the transmitter.
: ratio of the compressibility factors of the gas at operating
N
or:
If inputs are installed (optional), pressure and temperature can be measured by the customer and fed in the
transmitter.
The gas compressibility coefficient K of the gas is entered in the transmitter:
• as fixed value or
• as approximation according to e.g. AGA8 or GERG
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FLUXUS® G601 Technical Specification
Flow Transmitter
Technical Data
FLUXUS G601
design portable
measurement
measurement principle transit time difference correlation principle
flow velocity 0.03 to 115 ft/s, depending on pipe diameter
repeatability 0.15 % of reading ±0.03 ft/s
medium all acoustically conductive gases,
temperature compensation corresponding to the recommendations in ANSI/ASME MFC-5.1-2011
accuracy
volumetric flow rate ± 1 to 3 % of reading ±0.03 ft/s depending on application
flow transmitter
power supply 100 to 240 V/50 to 60 Hz (power supply unit),
battery Li-Ion, 7.2 V/4.5 Ah
power consumption < 6 W
number of flow measuring
channels
signal attenuation 0 to 100 s, adjustable
measuring cycle (1 channel) 100 to 1000 Hz
response time 1 s (1 channel), option: 70 ms
housing material PA, TPE, AutoTex, stainless steel
degree of protection NEMA 4
dimensions see dimensional drawing
weight 4.2 lb
fixation QuickFix pipe mounting fixture
ambient temperature 14 to 140 °F
display 2 x 16 characters, dot matrix, backlight
menu language English, German, French, Dutch, Spanish
measuring functions
physical quantities operating volumetric flow rate, standard volumetric flow rate, mass flow rate, flow velocity
totalizer volume, mass
calculation functions average, difference, sum
diagnostic functions sound speed, signal amplitude, SNR, SCNR, standard deviation of amplitudes and transit times
data logger
loggable values all physical quantities, totalized values and diagnostic values
capacity > 100 000 measured values
e.g. nitrogen, air, oxygen, hydrogen, argon, helium, ethylene, propane
± 0.5 % of reading ±0.03 ft/s with field calibration
10.5 to 15 V DC (socket at transmitter),
integrated battery
operating time (without outputs, inputs and backlight): > 14 h
2
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Technical Specification FLUXUS® G601
FLUXUS G601
communication
interface RS232/USB
serial data kit
software (all Windows™
versions)
- FluxData: download of measurement data, graphical presentation,
conversion to other formats (e.g. for Excel™)
- FluxKoef: creating medium data sets
- FluxSubstanceLoader: upload of medium data sets
сable RS232
adapter RS232 - USB
transport case
dimensions 19.7 x 15.7 x 7.5 in
outputs
The outputs are galvanically isolated from the transmitter.
number see standard scope of supply on page 9, max. on request
accessories output adapter (if number of outputs > 4)
current output
range 0/4 to 20 mA
accuracy 0.1 % of reading ±15 μA
active output R
passive output U
< 200 Ω
ext
= 4 to 16 V, depending on R
ext
R
< 500 Ω
ext
ext
frequency output
range 0 to 5 kHz
open collector 24 V/4 mA
binary output
optorelay 26 V/100 mA
binary output as alarm output
- functions limit, change of flow direction or error
binary output as pulse output
- pulse value 0.01 to 1000 units
- pulse width 1 to 1 000 ms
inputs
The inputs are galvanically isolated from the transmitter.
number see standard scope of supply on page 9, max. 4
accessories input adapter (if number of inputs > 2)
temperature input
type Pt100/Pt1000
connection 4-wire
range -238 to +1040 °F
resolution 0.01 K
accuracy ±0.01 % of reading ±0.03 K
current input
accuracy 0.1 % of reading ±10 μA
passive input R
- range -20 to +20 mA
= 50 Ω, Pi < 0.3 W
i
voltage input
range 0 to 1 V
accuracy 0.1 % of reading ±1 mV
internal resistance R
= 1 MΩ
i
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FLUXUS® G601 Technical Specification
G601
U L T R A S O N I C F L O W M E T E R
1 3
2
0
4 65
7
8
N E X T
Q
O N
Q -
Q +
M U X
D IS P
Q
O F F
L I G H T
E N T E R
C
O N
C H A N N E L A
C H A N N E L B
9
D IS P
E N T E R
3 x O F F
M O D E
B R K
B A T T E R Y
8.9
2.32
8.39
Dimensions
FLUXUS
in inch
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Technical Specification FLUXUS® G601
C H A C H B
C O M M
P 4 P 3 P 2 P 1
O u t p u t
+
-
D C - I N
C H A C H B
C O M M
P 4 P 3 P 2 P 1
O u t p u t
+
-
In p u t
T 1 /T 3 T 2 / T 4
D C - I N
C H A C H B
C O M M
P 2 P 1
O u t p u t
+
-
In p u t
T 1 /T 3 T 2 / T 4
D C - I N
P 3 .. . P 8
C H A C H B
C O M M
P 4 P 3 P 2 P 1
O u t p u t
+
-
In p u t
T 1 /T 3 T 2 / T 4
D C - I N
Standard Scope of Supply
G601 Standard G601
Extended Standard
application flow measurement on gas flow measurement on
2 independent measuring channels
calculation of standard
volumetric flow rate
calculation of standard volumetric flow rate, with optional use of current measured
pressure and temperature values
including energy calculator
for BTU and heat
simultaneous monitoring of
2 energy flows
measurements
outputs
passive current output 2 2 2 2
binary output 2 1 2 2
frequency output - 1 1 -
inputs
temperature input - - 1 2
passive current input - 2 2 2
voltage input - - 1 -
accessories
transport case x x x x
power supply unit,
xxxx
mains cable
batteryxxxx
output adapter - - x input adapter - 2 2 2
adapter for voltage and
--32
current inputs
QuickFix pipe
xxxx
mounting fixture for
transmitter
serial data kit x x x x
measuring tape x x x x
wall thickness probe - - x x
user manual,
xxxx
Quick Start Guide
connector board at the
upper side of the
transmitter
G601
Multifunctional
G601 CA-Energy
compressed air, industrial
gases and liquids
liquids: integrated heat
flow computer for
monitoring of energy flows
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