IN-FLOW CTA Industrial Mass Flow Meters and Controllers for Gases > Introduction

IN-FLOW CTA Industrial Mass Flow Meters and Controllers for Gases > Introduction
­
IN-FLOW
CTA
Industrial Mass Flow Meters and Controllers for Gases
> Introduction
Bronkhorst High-Tech B.V., the European market leader in thermal
Mass Flow Meters/Controllers and Electronic Pressure Controllers,
has many years of experience in designing and manufacturing
precise and reliable measurement and control devices. With a wide
range of instruments and offering innovative solutions for many
­different applications in a variety of different markets, Bronkhorst
High-Tech is dedicated to customer satisfaction, quality and
sustainability.
> IN-FLOWCTA series for industrial a
­ pplications
The Mass Flow Meters and Controllers of the IN-FLOWCTA series
are of rugged design (IP65) for use in pilot and production plants
in indus­trial environments. The instruments operate on the principle
of direct thermal mass flow measurement (no by-pass) and have no
moving parts and no obstructions to the flow path. These features
make IN-FLOWCTA Mass Flow Meters ideal for low pressure drop
applications and for the use on wet or dirty gases. Another advantage
of using this type of sensor is that the instruments measure direct
mass flow, without the need of temperature and pressure correction.
Mass Flow Meters can be ­supplied in ranges starting from 10…200
mln/min up to 50…5000 ln/min Air-equivalent. Mass Flow Control
loops can be ­offered, up to 4…200 ln/min Air-equivalent as flow meter
with i­ntegrated control valve and up to 5000 ln/min with separate
control valve.
> State of the art digital design
The IN-FLOWCTA Mass Flow Meters and Controllers are equipped with
a digital pc-board, offering excellent performance and many features,
at an affordable price. The main digital pc-board on the instrument
contains all of the ­general functions needed for measurement and
control. It has ­analog I/O-signals and also an RS232 connection
as a standard feature. In addition to this there is the possibility
of i­ntegrating an interface board with DeviceNet™, Profibus-DP®,
Modbus-RTU or FLOW-BUS protocol.
> General IN-FLOWCTA features
uVirtually pressure and temperature independent
uLow pressure drop
uWeatherproof IP65 housing
uOptional: A
TEX approval Cat.3, Zone 2
uVirtually insensitive to moisture or particulates
uOutstanding price/performance ratio
uCompliant with RoHS directives
> Digital features
uPROFIBUS-DP®, DeviceNetTM, Modbus-RTU or
FLOW-BUS slave
uRS232 interface
uAlarm and counter functions
uControl characteristics user configurable
> Technical specifications
Performance
> Models and flow ranges (based on Air)
Mass Flow Meters(MFM)
:± 1% FS plus ± 1% RD
Model MinimumMaximum
T10
0,01…0,2 ln/min
0,02…2 ln/min
Repeatability
:< 0,2% FS typical
T11
0,02…1 ln/min
0,05…5 ln/min
Turndown
:1 : 50 or 1 : 100 (see flow range table)
T12
0,1…5 ln/min
0,5…50 ln/min
Operating pressure
:0…10 bar(g)
T13
0,4…20 ln/min
2…200 ln/min
Pressure sensitivity
:0.3% RD/bar typical at Air
T14
2…100 ln/min
10…1000 ln/min
Operating temperature
:0…50°C;
T15
10…500 ln/min
50…5000 ln/min
Temperature sensitivity
:zero: < 0,1% FS/°C;
Accuracy (incl. linearity)
(based on actual calibration)
span: < 0,2% RD/°C
Mass Flow Controllers (MFC)
Leak integrity (outboard)
:tested < 2 x 10-9 mbar l/s He
Model MinimumMaximum
Attitude sensitivity
:max. error at 90° off horizontal 0,2%
T20
1)
0,01…0,2 ln/min
0,04…2 ln/min
at 1 bar, typical N2
T21
1)
0,02…1 ln/min
0,1…5 ln/min
Sensitivity to upstream piping
T22
1)
0,1…5 ln/min
1…50 ln/min
T23
2)
0,4…20 ln/min
4…200 ln/min
:virtually insensitive
configuration
Response time (sensor, t63%)
:T10/T11: 0,3 seconds;
other models: 0,9 seconds
Settling time (controller)
:approx. 2 seconds
Warm-up time
:3 0 min. for optimum accuracy
2 min for accuracy ± 2% FS
Mechanical parts
Material (wetted parts)
:S S316; other on request
Process connections
:B SPP female thread:
T10/T20/T11/T21: 1/8”
T12/T22: 1/4”
T13/T23/T14: 1/2”
T15: 1”
Seals
:standard: Viton®;
1)
Kv-max = 6,6 x 10-2
2)
Kv-max = 0,35
The MFCs listed above are equipped with integrated control
­valves. For higher flowrates Bronkhorst High-Tech offers
­combinations of Mass Flow Meters with separate control valves.
Typical combinations:
T13
T13
T14
T14
T15
+
+
+
+
+
F-002AI, Kv-max = 0,4
F-004AI, Kv-max = 0,3
F-003AI, Kv-max = 1,5
F-004BI, Kv-max = 1
F-003BI, Kv-max = 6
options: EPDM, FFKM (Kalrez)®
Ingress protection (housing)
:IP65
Electrical properties
Power supply
:+ 15…24 Vdc
Power consumption
:meter: max. 125 mA;
> Conversion factor table
For conversion to Air at 1013 mbar and 0°C you may use the
­following table for model selection:
controller: max. 375 mA;
Gas
Cf
CfGas
Cf
Cf
add 50 mA for PROFIBUS, if applicable
(T10, T11, (other (T10, T11, (other
T20, T21)
models)
Analog output/command
:0...5 (10) Vdc or 0 (4)…20 mA
(sourcing output)
Digital communication
:standard: RS-232
T20, T21)
models)
Air
1,00
1,00CO2 0,861,13
Ar
1,50
2,02HCl
options: PROFIBUS-DP®, DeviceNetTM,
CH4
0,77
0,61N2 1,001,00
Modbus-RTU, FLOW-BUS
C 2H 2
0,66
0,68NH30,820,74
Electrical connection
C 2H 4
0,70
0,75NO
C 2H 6
0,58
0,62N2O0,831,08
C 3H 8
0,43
0,51O2 0,990,97
Analog/RS232
:8-pin DIN male
PROFIBUS-DP®
:bus: 5-pin M12 female;
power: 8-DIN male
C4H10 0,32
0,41Xe
DeviceNetTM
:5-pin M12 male
CO
1,04
Modbus-RTU/FLOW-BUS
:5-pin M12 male
Technical specifications subject to change without notice
> Warranty
All instruments and accessories are warranted for a period of
3 years from order date.
1,01
1,12
1,00
1,96
1,53
1,01
6,09
Other gases on request
Best accuracy is achieved by calibrating IN-FLOWCTA
instruments under actual process conditions. The conversion ­
factor introduces an additional error in absolute accuracy
in the order of:
Cf ≥ 1 : 2xCf in % FS
Cf ≤ 1 : 2/Cf in % FS
> Dimensions (mm)
C
> Accessories
For the IN-FLOWCTA Mass Flow Meters and Controllers we offer the
following accessories:
L
Adapter sets (in- and outlet, OD compression type)
H
A
K
Mass Flow Meter
Model
For models
Inch sizes
Metric sizes
T10/T20
1/8” / 1/4”
6 mm
T11/T21
1/4” 6 mm
T12/T22
1/4” / 1/2” 6 mm / 12 mm
T13/T23
1/2” 12 mm
T14
1/2” / 3/4”
12 mm / 20 mm
T15
1”
25 mm
A C HK L
Power supply and
electrical connection
T10/T11
4774129
2536
uPlug-in Power T12
90 74 12530 36
T13
90 74 13530 36
Supply 110-240 Vac, c/w cable 2 m
uSplit cable Power/Signal, 30 cm
uInterconnecting cable, RJ-45 – Loose end, 3 m
uR S-232 cable, RJ-45 – 9-pin Sub-D, 3 m
T14
115 74 15040 36
T15
155 74 18075 36
C
L
BRIGHT Series, IP65 Local
Readout/Control Module
H
Mounted directly on
MFM/MFC or on wall,
panel or pipework
A
BRIGHT module
K
Mass Flow Controller
Model
A C HK L
T20/T21
100 74 12925 36
T22
120 74 12530 36
T23
135 74 13534 36
H
A
K
Control Valves
Model A
F-002AI
78 11659
H
K
F-004AI
64 12245
F-003AI
97 13074
F-004BI
85 17465
F-003BI
114147 89
IN-FLOWCTA model T15 Mass Flow Meter for high flow rates
> Fields of application
> Bronkhorst FlowWare, free software tools
The IN-FLOWCTA series find application in a wide variety of
­applications in the following markets (typically):
uGas consumption monitoring for internal accounting
uProcess gas measurement or control in food, pharmaceutical
and (petro-) chemical industries, in fermentation installations
and in fuel cell technology
uEnvironmental technology (air sampling)
uMethane production in anaerobic digestors
uSurface treatment (coating, hardening)
uTest benches
Bronkhorst High-Tech offers the following software support for
installation and operation by personal computer:
- FlowDDE: S
oftware tool to interface between digital ­instruments
and windows software.
- FlowPlot: S
oftware tool for monitoring and optimizing digital
instruments parameters.
Some typical examples of applications are:
> Burner Control
Burner control using Mass Flow Controllers brings many
­advantages compared to conventional systems, where flow is
adjusted through needle valves. When burner orifices get clogged
or when gas supply pressure varies, an MFC will automatically
adapt to the changed conditions. For the control of relatively large
flows with low differential pressure, which is typical for natural
gas or CH4, Bronkhorst High-Tech offers mass flow meters with
­separate pressure compensated bellows valves.
> Measurement of leak or throughput
Mass Flow Meters are often installed in quality control test
­benches to determine, for example, the leak through valves or
engine blocks. In similar systems the gas througput is measured
of filter, membranes, catalists, etc. The results of the measurement
can be indicated on a display as a readout value or as a minimum
or maximum alarm.
- FlowView: S
oftware tool to operate Bronkhorst digital
­instruments.
> Gas consumption measurement
When mass flow meters are installed at locations with different
cost centres (laboratories, hospitals, etc.) it will be clear which
users are responsible for the gas consumption. This enables a fair
internal accounting and will often lead to a reduced expenditure
for the organisation.
> Air supply in food processing
In many systems in the food industry you will find Bronkhorst’s
mass flow meters and controllers being used for air supply
in ratio to a bulk mass stream of half-finished product.
Some typical examples are: icecream and other dairy products,
dough for bakery products and candy or chocolate foam.
> Compressed air flow measurement
IN-FLOW Mass Flow Meters are ideally suited for the ­monitoring
of compressed air systems. Due to their ­construction, the
­instruments are insensitive to any moisture, oil or p
­ articulates that
may be carried through the compressed air network. Furthermore,
the mass flow meters are virtually independent from variations in
both pressure and temperature. Typical ­applications would include
performance testing, leak detection, ­maintenance management
and the measurement of compressed air ­consumption. For point
of use measurement we recommend our BRIGHT display module,
which can indicate both actual and totalized air flow.
CTA
These software tools are freeware for users of our IN-FLOWCTA
series and other digital Bronkhorst i­nstruments.
Thru-flow measurement using CTA flow sensor
CTA Mass Flow Sensor
Seals
Mesh screens
Heater
Flow
Sensor
Basically the IN-FLOWCTA Mass Flow Meter consists of a straight
tube. Two stainless steel probes ­protrude inside the flow channel;
a heater probe and a ­temperature sensor probe. A constant temperature (ΔT) is created between the two ­probes and the energy
required to maintain this ΔT is propor­tional to the mass flow rate.
Based on this concept, mass flow can be measured with low pressure drop, mainly caused by the gas fittings and the mesh screens
which are incorporated for flow ­conditioning. Compared to traditional thermal MFMs and MFCs with bypass, the direct measuring
IN-FLOWCTA is less sensitive to humidity and ­contamination.
> Pressure drop for Mass Flow Meters
[for Air at 20°C / 1013 mbar(a)]
1000
1000
Pressuredrop
drop [mbar(d)]
Pressure
[mbar(d)]
> CTA* Measuring principle
T10
T11
T12
T13
T14
T15
100
100
* CTA means Constant Temperature Anemometry
10
10
0,1
0,1
11
10
100
100
Mass
Massflow
flow [l[ln/min]
n/min]
1000
1000
10000
10000
> Model number identification T
N N
-
N N N
-
NN
-
A
Base
Analog output
1 Meter
2 Controller
Capacity (based on air)
0…5 Vdc
B
0…10 Vdc
V
F
0…20 mA sourcing
E EPDM
G
4…20 mA sourcing
K
0
ultra low flow (UF)
up to 2 ln/min
1
small flow (SF)
up to 5 ln/min
2
low flow (LF)
up to 50 ln/min
Supply voltage
3
medium flow (MF)
up to 200 ln/min
D+15…24 Vdc
4
high flow (HF)
up to 1000 ln/min
5
very high flow (VF)
up to 5000 ln/min
Connections (in/out)
Communication (I/O)
0
None
(factory standard)
RS232 + analog (n/c)
1
1/8”
OD compression type
Viton (factory standard)
Kalrez (FFKM)
UF
SF
LF
MF
HF
VF
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
B
RS232 + analog (n/o)
2
1/4”
OD compression type
D
RS232 + DeviceNetTM (n/c)
3
6 mm
OD compression type
E
RS232 + DeviceNetTM (n/o)
4
12 mm OD compression type
M
RS232 + Modbus-RTU (n/c)
5
1/2”
20 mm OD compression type
OD compression type
N
RS232 + Modbus-RTU (n/o)
6
P
RS232 + PROFIBUS-DP® (n/c)
8
1/4”
Q
RS232 + PROFIBUS-DP® (n/o)
9
Other: 3/4” OD compr. type
R
RS232 + FLOW-BUS (n/c control)
S
RS232 + FLOW-BUS (n/o control)
•
•
•
1” OD compr. type
•
•
25 mm OD compr. type
•
•
Face seal male
•
•
­
IN-FLOWCTA model T13 Mass Flow Meter with close coupled Control Valve F-002BI
IN-FLOWCTA model T21 Mass Flow Controller for small flow rates
Nijverheidsstraat 1a, NL-7261 AK Ruurlo The Netherlands
T +31(0)573 45 88 00 F +31(0)573 45 88 08 I www.bronkhorst.com E [email protected]
E.CTA.0513.E
©BHT2013-025
A
Internal seals
A
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