el-press
EL-PRESS
ELECTRONIC PRESSURE METERS
PRESSURE RANGES:
MIN.
0-100 MBAR; MAX. 0-400 BAR
HIGH ACCURACY AND REPEATABILITY
COMPACT ARRANGEMENT
FOR LIQUIDS AND GASES
THRU-FLOW DESIGN
AND
CONTROLLERS
INTRODUCTION
AND
CONTENTS
INTRODUCTION
This brochure describes the instruments of the EL-PRESS series. These Electronic Pressure Meters and Controllers for
gases and liquids are of modular construction. Absolute, relative and differential pressure sensors are available. All metal
sealed Pressure Meters/Controllers of the COMBI-FLOW series are described in a separate brochure. Furthermore your local
distributor will gladly advise you on ex-proof pressure measurement and control systems. For Bronkhorst Hi-Tec’s product
line of Mass Flow Meters/Controllers please refer to page 15 or our general brochure.
CONTENTS
PA G E
About Bronkhorst High-Tech
3
EL-PRESS Electronic Pressure Meters
4
EL-PRESS Electronic Pressure Controllers
5
EL-PRESS
6
Pressure Meters/Controllers
Technical specifications
Control Valves
2
7
8- 9
Model number identification
10
Applications
11
Readout Systems, digital
12 - 13
Readout Systems, analog
14
Other BRONKHORST HI-TEC products
15
A B O U T B R O N K H O R S T H I G H -T E C H
PRODUCT
SALES
RANGE
Bronkhorst High-Tech B.V. was established in 1981
and now offers a very wide range of thermal and coriolis
mass flow meters and controllers. Numerous styles of
both standard and customized instruments can be
offered for applications in laboratory, industrial and
hazardous areas. The full scale measuring range (with
50:1 turn-down) for these instruments can be selected
between 0…1 mln/min and 0…10000 m3n/h for gases
and 0…30 mg/h up to 0…600 kg/h for liquids.
Furthermore Bronkhorst High-Tech offers pressure
transducers and controllers with a minimum range of
0…100 mbar and a maximum range of 0…400 bar.
R E P R E S E N TAT I O N A N D S E R V I C E
In addition to the sales office
in Veenendaal of The Netherlands there are branch offices
in Great Britain, France,
Switzerland and northern
Germany whereby local
expertise and service is
offered. Bronkhorst HighTech has also built up an
extensive complimentary
network of distributors and
service stations across the
rest of Europe and, indeed,
yet further representation in
such countries as the USA,
Japan, Australia, New Zealand,
Canada, Israel, India, South
Africa, Brazil and Korea.
QUALITY
ROUND-THE-CLOCK
S U P P O RT
Bronkhorst High-Tech is a truly worldwide organisation with its Head Office being located in the town of
Ruurlo in The Netherlands. With a total head-count
now exceeding 230 employees, it is impressive
that 45 of these are involved with R&D,
100 in manufacture and 40 involved
with after-sales service and customer
care. In actual fact, the Customer Service
Department offers “round-the-clock”
support, seven days a week, to customers
in every corner of the world.
Customer satisfaction, innovation and quality of product
and service have been the
cornerstones of Bronkhorst
High-Tech's success. In 1987
the company obtained the
Koning Willem I Award for a
young successful enterprise
and in 1992 the company was
accredited to ISO
9001 with ISO
14001 (an International Standard for
environmental management) following
three years later. In January 2004 this
ongoing commitment was rewarded by
accreditation to the most recent Quality
Management System, ISO 9001:2000.
3
EL-PRESS E L E C T R O N I C P R E S S U R E M E T E R S
GENERAL
The EL-PRESS series P-500 Electronic Pressure Meters
have a well-proven compact thru-flow design, and are
available in pressure ranges from 100 mbar up to 400 bar,
both in absolute pressure and relative pressure. In the
range of 100 mbar up to 15 bar a differential pressure
transmitter can also be supplied. The instruments are of
modular construction with an electronic housing suitable
for common laboratory type ambient conditions. In order
to convert an electronic pressure transmitter to a controller, a control valve is used; normally the control valve
would be integrated (see next page), but it can also be
mounted separately.
C
CROSS SECTIONAL DRAWING OF A PRESSURE SENSOR
PRINCIPLE
H
L
A
B
K
PRESSURE METER
Dimensions (mm)
Model
A
B
C
P-502C/P-512C/P-522C/P-532C 47 97 47
H
123
Weight
(kg)
0,4
K
30
L
37
K
30
Weight
L (kg)
30 0,4
O F O P E R AT I O N
The Bronkhorst Hi-Tec EL-PRESS pressure sensor is a
piezo resistive bridge on the surface of a silicon chip.
This chip is drilled out on its reverse side, giving the
inside of the chip the form of a pressure diaphragm
whose thickness determines the pressure range. When a
pressure acts on this chip, the diaphragm flexes, and the
resistor values of the bridge alter in proportion to the
pressure. The measuring cell is separated from the
external pressure by a thin, sensitive stainless steel
diaphragm, and the sealed off cavity between diaphragm
and cell is filled with oil.
DIFFERENTIAL PRESSURE METER
Model
P-506C
Dimensions (mm)
A
B
C
55 105 47
EL-PRESS P-506C EPT
4
H
116
PRESSURE
R A N G E S ( I N T E R M E D I AT E R A N G E S A R E AVA I L A B L E )
Pressure Meters (absolute or relative)
Model P-502C
min. 2 .........100 mbar
Model P-512C
min. 1,28 ......64 bar
Model P-522C
min. 2 .........100 bar
Model P-532C
min. 4 .........200 bar
max.
max.
max.
max.
Differential Pressure Meters
Model P-506C
min. 2 .........100 mbar
max. 0,3 ........15 bar
1,28 ......64
2 .........100
4 .........200
8 .........400
bar
bar
bar
bar
EL-PRESS E L E C T R O N I C P R E S S U R E C O N T R O L L E R S
GENERAL
The EL-PRESS Electronic Pressure Controllers are compact devices, comprising an integrated pressure transducer and control valve for Kv-values up to 6,6 x 10-2. For
higher flows we recommend to use a separate P-500 pressure transducer, preferably to be mounted outside the
flow stream to eliminate frictional losses, and a special,
patented Bronkhorst Hi-Tec control valve for Kv-values up
to 6,0. To cope with high differential pressure a VARY-P
control valve can be offered; the maximum possible differential pressure across this device is 400 bar.
For pressure control applications with small pressure
differences, series F-004 bellows operated valves can be
offered. See pages 8 and 9 for a description of the various
control valves.
FIELDS
O F A P P L I C AT I O N
Chromatography
Programmable pressure profile in
• gas chromatography
• liquid chromatography
Biotechnology
• Fermenter pressure control
C
Semiconductor Industry
• Vapour pressure control MOCVD
• Chamber pressure control in CVD and sputtering
equipment
H
Surface treatment technology
• Source pressure control (TiCl4)
• Protective gas pressure control in aluminium
extrusion moulding processes
L
A
B
K
F O R WA R D P R E S S U R E C O N T R O L L E R
Model
P-602C/P-612C
Dimensions (mm)
A
B
C
77 127 47
H
123
Weight
(kg)
0,7
K
25
L
37
K
25
Weight
L (kg)
37 0,7
Research laboratories
• Pressure control in combustion studies
• Liquid level control in reactor vessels
BACK PRESSURE CONTROLLER
Model
P-702C/P-712C
Dimensions (mm)
A
B
C
77 127 47
H
123
PRESSURE
R A N G E S ( I N T E R M E D I AT E R A N G E S A R E AVA I L A B L E )
Forward Pressure Controllers (absolute or relative)
Model P-602C
min. 5 .........100 mbar
max. 3,2 ........64 bar
Model P-612C
min. 3,2 ........64 bar
max. 5 .........100 bar*
Back Pressure Controllers (absolute or relative)
Model P-702C
min. 20 .......100 mbar
max. 12,8 ......64 bar
Model P-712C
min. 12,8 ......64 bar
max. 20 .......100 bar*
* For pressures up to 400 bar select P-532C Pressure Meter with F-033C Control Valve
EL-PRESS P-702C EPC
5
EL-PRESS ® D IGITAL P RESSURE M ETER /C ONTROLLER
GENERAL
Pressure meters and controllers of the EL-PRESS
series are also available in a digital version. As is often
the case, pressure meters in their standard analog
construction are then furnished with AD/DA converters
and so made digital. Not so in our case.
EL-PRESS digital is based on a new digital PC-board
on which the sensor signal is sent direct to a micro
processor. By doing so an optimum signal stability
and accuracy is achieved. An integral alarm function
continuously checks the difference between the setpoint- and the measured value. If, for example, the
supply pressure of a pressure controller drops and
therefore the downstream pressure can no longer be
controlled, the instrument gives a warning. In addition
the instrument checks itself through an integral, self
diagnosis routine.
M U LT I -B U S
TECHNOLOGY
Bronkhorst High-Tech B.V. developed their latest digital instruments according to the ‘multi-bus’ principle.
The basic 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 RS-232
connection as a standard feature. In addition to this
there is the possibility of integrating an interface board
with DeviceNet™, Profibus-DP®, Modbus or FLOW-BUS
protocol. The latter is a fieldbus based RS485, specifically designed by Bronkhorst High-Tech B.V. for their
mass flow and pressure metering and control solutions,
and through which the company already has fifteen
years of experience with digital communication.
To support PC/PLC controlled process control
Bronkhorst High-Tech has devised various software
programmes, for instance a DDE-server for parameter
exchange with MS WINDOWS application programmes.
Furthermore Bronkhorst High-Tech offers free software tools for fieldbus connection and for monitoring,
optimizing and operation of digital instruments.
S P E C I F I C AT I O N S
Digital Pressure Meter/Controller
• Digital input/output (DeviceNet™, Profibus-DP®,
Modbus or FLOW-BUS operation) or analog
(0...5 (10) V, 0 (4)...20 mA).
• Interchangeable with analog instruments.
• Accuracy: ±0,5% of full scale.
• In-situ self-diagnosis.
• Alarm functions.
• Fast (adjustable) response controller.
• Single rail power supply +15...+24 Vdc.
S O F T WA R E
S U P P O RT
Bronkhorst Hi-Tec offers free software support for
personal computer or PLC.
• FlowDDE: Software tool to interface between
digital instruments and windows software.
• FlowPlot: Software tool for monitoring and
optimizing digital instruments parameters.
• FlowView: Software tool to operate Bronkhorst
digital instruments.
• FlowFix: Software tool for fieldbus connection of
digital instruments.
EL-PRESS P-702C
6
PRESSURE CONTROLLER
T E C H N I C A L S P E C I F I C AT I O N S EL-PRESS
MEASUREMENT
C A L I B R AT I O N
SYSTEM
ACCURACY (INCL. LINEARITY)
±0,5% of full scale
REPEATABILITY
<0,1% of full scale
RESPONSE TIME SENSOR
<0,1 s.
CONTROL STABILITY
< ±0,1% full scale (typical for 1 ln/min N2 at specified
process volume)
ATTITUDE SENSITIVITY
max. error 0.015% at 1 bar N2 and 90° change
TEMPERATURE SENSITIVITY
0,1% of full scale/°C
SUPPLY VOLTAGE SENSITIVITY
zero at correct supply voltages (acc. to electr. data)
LEAK INTEGRITY
tested < 2 x 10-9 mbar l/s He
(SEE SEMI E 18-91)
Additional pressure test at 1,5 times the max. stated
The calibration is done with equipment certified by the Netherlands
Measurement Institute (NMi) and is
in accordance with European and
most important other countries'
regulations.
C O N F I G U R AT I O N S
operating pressure
RFI
CE approved design
MECHANICAL
P
P1
P2
PA RT S
PROCESS CONNECTIONS
see model number code; other on application
MATERIALS OF CONSTRUCTION
stainless steel AISI 316L or comparable
SEALS
Viton, EPDM, elast. PTFE, other on application
SURFACE QUALITY
Ra 0,2...0,6 µm
PRESSURE MEASUREMENT
P1
O P E R AT I N G
LIMITS
PRESSURE RANGEABILITY
Measurement 1 : 50
∆P
P2
Control (with flow range 1 : 50)
P-602C/P-612C 1 : 20
P-702C/P-712C 1 : 5
∆P-MEASUREMENT
P-500 series with separate control valve up to 1 : 50
(depending on application)
TYPES OF GASES OR LIQUIDS
all fluids compatible with AISI 316L
TEMPERATURE
-10 °C up to +70 °C
WARMING-UP TIME
30 min for optimum accuracy,
P-600
P
P1
P2
2 min for accuracy ±2% of full scale
ELECTRICAL
FORWARD PRESSURE CONTROL
P R O P E RT I E S
SUPPLY VOLTAGE
analog EPT: +15 V, 45 mA -15 V, 20 mA
or +15 V, 45 mA or +24 V, 45 mA
P-700
EPC: +15 V, 225...300 mA -15 V, 20 mA
or +15 V, 300 mA or +24 V, 230 mA
digital EPT: +15 V, 95...115 mA or +24 V, 70...90 mA
P
P1
P2
EPC: +15 V, 235...385 mA or +24 V, 150...240 mA
OUTPUT SIGNAL
analog: 0...5 V, 0...10 V, min. load impedance > 2 kOhm
0 (4)...20 mA, max. load impedance < 375 Ohm
(SHORT CIRCUIT PROTECTED)
BACK PRESSURE CONTROL
digital: RS-232, FLOW-BUS, Profibus-DP or Devicenet
SETPOINT SIGNAL
analog: 0 (1)...5 V, 0...10 V, input resistance min. 1 MOhm
P1
0(4)...20 mA, input resistance 250 Ohm
digital: RS-232, FLOW-BUS, Profibus-DP or Devicenet
REFERENCE SIGNAL
analog: 5 V (10 V), min. load impedance > 2 kOhm
ELECTRICAL CONNECTION
analog/RS-232: male, 9-pin sub-D connector
digital:
P-600
∆P
P2
female, RJ45, 9-pin sub-D or M12
(depending on fieldbus)
∆P-CONTROL
7
C O N T R O L V A LV E S
The control valve can be supplied as an integral part of an
EL-PRESS pressure controller, or as a separate
component. It is a proportional, electro magnetic control
valve with extremely fast and smooth flow control
characteristics.
With reference to the specific fields of application there
are different series of Bronkhorst Hi-Tec control valves.
The optimum choice is made together with your
distributor after having studied the operating conditions
and requirements. But for those of you that want detailed
information, the most important features of the various
models are summarised here (see also the graph printed
below).
GRAPHIC
D I S P L AY O F
KV
AND MAX. PRESSURE
10
F-003
F-00
1
F-0
04A
F-00
4BC
F-00
C
3AC
2AC
0,1
B C /0
/013
/012
13BC
AC
AC
F-03
1
0,0
F-0
01A
C/0
11A
3C
C
10
100
PN
400
PRINCIPLE
O F O P E R AT I O N
In the neutral position (no valve voltage supply), the control mechanism, a plunger/
orifice system, is closed by means of a spring and the differential pressure. As soon as
the controller supplies sufficient voltage, the magnetic force caused by the coil lifts
the plunger, until the forces are in balance and the desired gas flow rate is maintained.
The valve is normally closed. In the normally opened version the plunger/orifice
control mechanism is closed by the ∆P and the magnetic force.
S U M M A RY
OF TYPES AND MODELS
Type
Direct acting
Vary-P
Pilot-operated
Bellows
Model
F-001AC, F-011AC
F-033C
F-002AC, F-012AC
F-003AC, F-013AC
F-003BC, F-013BC
F-004AC
F-004BC
* depending on Kv-value.
8
Kv max.
6,6 x 10-2
5,1 x 10-2
0,4
1,5
6,0
0,3
1,0
∆P min.
6 bar
1,3 bar
1,6 bar
1,6 bar
-
∆P max.
3,6...50 bar*
400 bar
20 bar
20 bar
20 bar
5 bar
5 bar
PN
100
400
100
100
100
10
10
A D VA N TA G E S
•
•
•
•
•
Modular
Compact
Simple
Electro-chemically polished
User replaceable
D I R E C T A C T I N G V A LV E F-001AC
The valve consists of a valve module (see picture)
that is mounted onto a base block. The base block
may constitute a separate control valve F-001AC, or
an EPC (P-602C, P-702C). The valve module is also
used as pilot valve in bigger valves and controllers.
P1
P2
V A RY-P V A LV E F-033C
This is a patented 2-phase control valve. The flow
control section is the valve module as described
above. The other section is a pressure compensation
valve; the latter maintains a constant ∆P across the
first section (P1-P'1) of 4 bar. By doing so both the
inlet pressure P1 and the outlet pressure P2 may
change without having any impact on the Vary-P
Valve function.
P1
P'1
P2
P ILOT -O PERATED V ALVES F-002AC, F-003AC, F-003BC
Are patented indirect acting control valves and use a
complete Vary-P Valve as described above, as pilot
valve. Hence they are also pressure compensated.
The pilot controls the pressure on the back side of a
spring loaded cylinder, of which the front side is
subject to the inlet pressure of the main valve.
This cylinder furnishes the power for the main valve.
As soon as the ∆P becomes bigger than the spring
force, the main valve, will open.
P2
P1
P R E S S U R E C O M P E N S AT E D B E L L O W V A LV E S
F-004AC/F-004BC
Are direct acting control valves as the abovementioned F-001AC series. They are also closed by
spring force. A bellows compensates the closing force
acting on the plunger to such a degree that only a
very small magnetic force is required and in this way
large orifices can be opened, which is impossible in
the F-001AC design as it would cause oscillation.
The bellows pressure compensated design, however,
enables us to smoothly control large flows at
extremely low pressures.
P1
P2
9
MODEL
P
5
6
7
N
N U M B E R I D E N T I F I C AT I O N
N
NA
A
BASE
PRESSURE
Sensor only
Valve + Sensor (regulates
downstream pressure)
Sensor + valve (regulates
upstream pressure)
R AT I N G
0
1
2
3
64 bar
100 bar
200 bar
400 bar
A
A
S U P P LY
A
B
C
SENSOR
2C
6C
Absolute/Relative pressure
Differential pressure
A
B
D
E
F
G
M
N
P
Q
R
S
Digital controller, analog output, N/C
Digital controller, analog output, N/O
Digital controller, DeviceNet, N/C
Digital controller, DeviceNet, N/O
Analog controller, N/C
Analog controller, N/O
Digital controller, Modbus N/C
Digital controller, Modbus N/O
Digital controller, Profibus, N/C
Digital controller, Profibus, N/O
Digital controller, FLOW-BUS, N/C
Digital controller, FLOW-BUS, N/O
P.C. B O A R D
The model number code serves primarily to identify
instruments. When making enquiries or placing orders we
determine the correct model number in accordance with
the following
A
B
F
G
Z
E N Q U I RY
10
NNNA
V O LTA G E
SIGNAL
INLET
CONNECTION
OUTLET
1
2
3
4
5
8
9
⁄8" compression type
1
⁄4" compression type
6 mm compression type
12 mm compression type
1
⁄2" compression type
1
⁄4" face seal
other
E
P
V
Z
EPDM
Elastomeric PTFE
Viton (factory standard)
Other
1
1
2
3
4
5
8
9
SEALS
SENSOR
00A1
002A
005A
020A
100A
400A
Absolute pressure
100…200 mbara
0,2…1,2 bara
1,2…4 bara
4…15 bara
15…100 bara
100…400 bara
00D1
002D
005D
020D
Differential pressure
100…200 mbard
0,2…1 bard
1…4 bard
4…15 bard
A N D O R D E R I N G I N F O R M AT I O N
Based on this information we perform the following
actions/calculations:
• Determination of the pressure range to be measured
or controlled.
• Only for controllers, check if the pressure differential
across the valve (∆P) is within the limits.
• Only for controllers, check if the FLUIDAT calculated
Kv-value is within the specifications allowed.
A
0...5 V
0...10 V
0...20 mA sourcing
4...20 mA sourcing
other
RANGE
In order to furnish the optimum instrument for your
application we request you to state: operating pressure
(for controllers upstream and downstream pressure and
also the process volume), type of gas or liquid, flow and
operating temperature, electrical connection, desired output signal, type of process connection and seals.
N
+15 Vdc
+24 Vdc
±15 Vdc
OUTPUT
STYLE
N
00R1
002R
004R
020R
Relative pressure**
100…200 mbarg
0,2…1 barg
1…4 barg
4…15 barg
** for relative pressure
ranges higher than 15 barg
an absolute sensor is used
EXAMPLES
O F S O M E A P P L I C AT I O N S
It is of course impossible to picture the possible number
of applications. Here is a limited quantity of basic examples, which are often seen with some variations. However,
identical or similar configurations are used in totally different applications. Therefore please consider the ones pictured here as examples for solving common applications.
BACK
PRESSURE CONTROL INDEPENDENT OF GAS MIX AND
T O TA L F L O W
Gas 1
Gas 2
F-201C
PRESSURE
Burner
Gas
F-111C
P-602C
Flow Meter
Electronic
Forward Pressure
Controller
This arrangement of an EL-FLOW Mass Flow Meter with,
in series, an EL-PRESS Forward Pressure Controller is
used in burner test applications, or tests to check the
inlet pressure dependence of the capacity of mechanical
pressure regulators, or the tolerance on the bore of
orifices, etc.
F ORWARD P RESSURE C ONTROL
Process
Chamber
(reactor)
Flow Controllers
Gas
A gas mixture is formed by EL-FLOW Mass Flow Controllers. In a process chamber the effect of the catalyst on
certain reactions is tested. The pressure in the process
chamber is controlled to the desired level by means of an
EL-PRESS Back Pressure Controller, independent of the
total flow and/or the composition of the mixture.
G.C. ( GAS
CHROMATOGRAPHY )
C O N T R O L W I T H A D J U S TA B L E F L O W
P-602C
Electronic
Forward Pressure
Controller
F-201C
Gas Chromatograph
In Gas-Chromatography there is an increasing need to
automate all required parameters. The EL-PRESS Forward
Pressure Controller enables the user to select a desired
pressure profile for the analyses, whereby the pressure is
kept constant to a very precise value, even at very low
flow rates.
C O M P E N S AT I O N
Gas
IN
P-702C
Electronic
Back Pressure
Controller
F-201C
PRESSURE
CONTROL COMBINED WITH FLOW MEASUREMENT
O F AT M O S P H E R I C P R E S S U R E C H A N G E S
P-502C
Flow Controller
Reactor
Electronic
Pressure
Meter
P-702C
Liquid
helium
The control valve of the EL-FLOW F-201C Mass Flow
Controller (MFC) forms a closed loop pressure control
system with the EL-PRESS P-502C Pressure Transducer:
the Mass Flow Meter of the MFC measures the required
flow rate to maintain the set pressure level. The setpoint
voltage divider enables the user to adjust the maximum
flow to build up desired pressure levels. Restriction of the
maximum flow may for safety reasons be important in
certain processes.
Electronic
Back Pressure
Controller
Superconducting coils, which are used to generate magnetic fields, are cooled by liquid helium. Depending on
the temperature exchange gaseous helium should be vented. With a manually controlled outlet the variation of the
atmospheric pressure disturbs the magnetic field. By
using an EL-PRESS P-702C Back Pressure Controller the
pressure for the superconducting coils is kept constant,
thus eliminating the negative effects of atmospheric pressure variations.
11
READOUT SYSTEMS
THE
W I T H I N T E G R AT E D
WIDE SELECTION IN READOUT SYSTEMS
Bronkhorst High-Tech offers a wide range of single- and
multi-channel systems, using both digital and analog
operation
P O W E R S U P P LY
In addition there is the feature to program up to eight
polynomial functions of calibration curves to achieve an
accuracy of ± 0,5% of the measured value plus ± 0,1% of
full scale.
The readout systems make much more possible than providing command signals to a number of controllers, for
instance for making defined gas mixtures. The parameter
to be controlled by the flowrate can also be temperature,
process pressure, pH-value, and the command signals for
these can be directly provided to the flow control loop. In
combination with computers or PLCs ramp functions or
other programmable process phases can be realised .
This brochure does not lend itself to show all the possibilities how to build control systems; your local distributor
will gladly discuss your particular application with you in
detail.
FLOW-BUS
SINGLE-CHANNEL MODULE
Series E-7000
The digital single-channel control module was developed
by Bronkhorst High-Tech B.V. for mass flow and pressure
measurement and control systems. Its application is not
limited to operation in combination with Bronkhorst HiTec mass flow controllers and pressure controllers, but it
can also be used with other transmitters or transducers,
or in master/slave control systems.
The Bronkhorst Hi-Tec FLOW-BUS Series E-7000 offers
the user a menu driven device with the possibility to define and control mass flow meters/controllers, pressure
transducers/controllers or other instruments.
The µ-processor based single-channel module offers the
possibility to show tag numbers, measurement identifications, fluid names and totalizing units on top of the measurement and command signals in percent of max. flow or
direct reading units.
12
E-7000 SINGLE CHANNEL MODULE
F E AT U R E S
A user-friendly Indication/Control/Alarm/Totalization
module, menu driven with 5 push buttons for:
• Use with digital or analog instruments,
• Indication of measured value on a 2-line, 16-figure
display in percent or direct indication, combined with
totalized quantity or preset quantity,
• Internal/external command,
• Master/Slave control,
• Totalization or batch functions,
• Programmable alarm functions,
• NO/NC relays for status outputs,
• Programming of max. 8 polynomial functions.
FLOW-BUS
M U LT I - C H A N N E L C O N F I G U R AT I O N S
Based on the single-channel module it is easy to form
multi-channel units. Three channels fit in a 1⁄2 19" housing
and six channels can be housed in a 19" table top or rack
mounting unit.
FLOW-BUS D I G I TA L R E A D O U T S Y S T E M
Series E-7002
This series comprises modular readout systems built up
from E-5700 and E-7000 modules.
Tailer-made systems with non-standard functions are also
included in this series.
Specifications
Housing:
• Cassette for panel mounting (1 channel) 96 x 144 mm.
• Table top housing (1 channel) 76 x 134 x 260 mm.
• Table top or rack housing (max. 3 channels)
3 HE 1⁄2 19"
• Table top or rack housing (max. 6 channels)
3 HE 19"
Electrical data
• Power supply 100...240 Vac, 50...60 Hz or 24 Vac/Vdc.,
• Output signals/command signals 0...5 (10) Vdc,
0 (4)...20 mA,
• Sub-D Connector for instrument connection,
• Sub-D Connector for analog I/O functions,
• RJ 45 Connector for connection to FLOW-BUS,
• Max. power output +15 Vdc 1,5 A,
-15 Vdc 150 mA.
E-7100 3-CHANNEL EXECUTION
13
READOUT SYSTEMS
ANALOG
WITH INTEGRAL
S TA N D A R D R E A D O U T S
Series E-5700
This series comprises standardised models for use with
analog Mass Flow and Pressure Meters/Controllers for
common basic requirements.
It is a simple, low cost unit for users who do not require
the advanced features of the FLOW-BUS Series.
•
•
•
•
•
P O W E R S U P P LY
Functions
• 1 Indicator per 2 channels, with selector switch,
• 1 Command potentiometer per channel,
• 1 Internal/external command signal switch,
• 100...240 Vdc power supply.
E-5752: 2-channel system,
table top model
E-5762: 2-channel system,
panel mount (96 x 144 mm)
E-5712: 2-channel system,
1
⁄2 19" table top model
E-5732: 2-channel system,
1
⁄2 19" for rack mounting
E-5714: 4-channel system,
⁄2 19" table top model
E-5734: 4-channel system,
1
⁄2 19" for rack mounting
1
•
•
E-5716: 6-channel system,
⁄2 19" table top model
E-5736: 6-channel system,
1
⁄2 19" for rack mounting
1
•
E-5752 2-CHANNEL PS/READOUT
Electrical data
• Power supply 100…240 Vac
• Suitable for connection of instruments with output
signal 0..5 (10) Vdc.
• Ext. output and/or setpoint signals: 0…5 (10) Vdc;
0 (4) …20 mA (to be advised).
• Sub-D socket for instrument connection.
• Sub-D socket for analog I/O function.
• Max. power output +15 Vdc, 2 A / -15 Vdc, 300 mA.
E-5736 6-CHANNEL PS/READOUT
14
O T H E R B R O N K H O R S T H I -T E C P R O D U C T S
In addition to the instruments of the EL-PRESS series described in this catalogue we would like to show
some other product groups within our range of instruments. Separate brochures for these are available
on request from your distributor.
EL-FLOW ®
Mass flow meters and controllers for
gases with an electronic housing suitable
for laboratory conditions.
Instruments of the EL-FLOW®
series are the only ones on the
market that can control flow
ranges between 0...1 mln/min
and 0...1250 ln/min between
vacuum and 400 bar in one
range of instruments. The particular versatility in flow
ranges and in operating conditions have made
EL-FLOW® the best sold and proven instrument series.
IN-FLOW
Mass Flow Meters and Controllers
for gases suitable for applications in
industrial environments, due to their
IP 65 protection. Not only can the
EL-FLOW® and LOW-∆P-FLOW
series be supplied in this way,
but moreover instruments can
be supplied suitable up to
11.000 m3n/h as described in
the IN-FLOW brochure.
EX-FLOW
Mass flow meters and controllers for
gases in rugged construction
with approval for use in
hazardous areas.
The measuring ranges are
from 0,15...7,5 mln/min up to
220...11.000 m3n/h. The mass
flow meter has ATEX approval
according to II 2 G EEx ib II C T4.
The electronic housing is IP65. The control valves
have Kv-values between 5,7 x 10-5 and 6,0 and approvals to ATEX II 2 G/D IP6X T 130°C EEx me II T4 and
II 1 G/D EEx ia IIC T6
LIQUI-FLOW ®
Mass Flow Meters and Controllers for
liquids in ranges between
0,1...5 g/h and 0,4...20 kg/h
(water equivalent). LIQUIFLOW® flow meters only require
a small differential pressure.
In spite of measurement without
a by-pass the rise in temperature
of the fluid is minimal; only approx.
1...5 °C. This greatly limits the danger of evaporation
or degradation of the fluid. For even smaller ranges
Bronkhorst High-Tech offers the µ-FLOW series;
smallest range: 1,5...30 mg/h (water equivalent).
If one or more instruments described here are of interest to you, then please do not hesitate to contact
your distributor.
15
Distr.:
Nijverheidsstraat 1a, 7261 AK Ruurlo, The Netherlands
Tel.: +31 573 458800, telefax: +31 573 458808
Internet: www.bronkhorst.com, E-mail: [email protected]
E.EPB.0205.F
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