9.17.098 C
2
SCOPE OF THIS GUIDE
This Quick Installation Guide covers the
EL-FLOW®
Select
(including Metal Sealed) series Digital Mass Flow Meters and
Controllers for gases. These instruments are designed for laboratory and clean processing conditions and are suited to measure
and control flow ranges between 0,014…0,7 mln/min and 8…1670 ln/min, at pressures between vacuum and 400 bar.
EL-FLOW®
Select
instruments are equipped with a digital printed circuit board, featuring diagnostics, alarm and counter
functions, digital communication (RS232) and a PID controller. Thanks to the 'multibus' concept, instruments can be equipped
with an onboard fieldbus interface as an option. The Multi Fluid / Multi Range option (to be specified at the moment of ordering)
allows the user to select flow ranges and gas types, maintaining high accuracy and turndown ratio for measurement and control.
This Quick Installation Guide will help you start up your
EL-FLOW®
Select
instrument in 10 steps, covering the following subjects:
1.
Checking functional properties
2.
Checking test pressure
3.
Checking piping
4.
Mounting/installing instrument
5.
Leak check
6
. Electrical connection
7.
Analog/digital operation
8.
Multifunctional switch operation
9.
Purging
10.
Adjusting zero point
Other applicable documents:
- Manual
EL-FLOW®
Select
series (document no. 9.17.099)
Interfaces
Manual
Hook-up diagram
- Analog/RS232 interface
9.17.027
9.16.119
- EtherNet/IP interface
9.17.132
9.16.215
- CANopen interface
9.17.131
9.16.217
- DeviceNet™ interface
9.17.026
9.16.122
- EtherCAT® interface
9.17.063
9.16.124
- FLOW-BUS interface
9.17.024
9.16.120
- Modbus ASCII / RTU interface
9.17.035
9.16.123
- PROFIBUS DP interface
9.17.025
9.16.121
- PROFINET interface
9.17.095
9.16.148
- Modbus TCP interface
9.17.035
9.16.234
- Custom bus & I/O configurations
n/a
9.16.118
The instrument manual and hook-up diagrams can be downloaded from the
EL-FLOW® Select
product pages on the
Bronkhorst website:
www.bronkhorst.com/products
Other documents can be found on our general download page (
www.bronkhorst.com/downloads
)
Starting up
1
Check functional properties
Before installing the instrument, check if the properties stated on the
instrument label match your requirements:
Flow and/or pressure rate
Media to be used in the instrument
Upstream and downstream pressure(s)
Operating temperature
Valve type (N.C. - Normally Closed / N.O. - Normally Open)
Input and output signal
2
a. Check pressure rating
Before installation, make sure that the pressure rating is in accordance with
the safety factor of your application.
The tested pressure is stated on the instrument with a red label. If this label
is missing, or if the tested pressure is insufficient, the instrument must
not
be mounted in the process line and should be returned to the factory.
© 2020 Bronkhorst High-Tech B.V.
3
b. Check operating conditions
EL-FLOW®
instruments are suitable for use at temperatures between -10 and +70 °C. The instrument housing has
ingress protection rating IP40, implying that the equipment is suited for general purpose indoor (dry) applications,
like laboratories and machine enclosures.
3
Check if system piping is clean
For reliable operation, always make sure the fluid stream is clean.
Use filters to ensure a moisture, oil and particle free gas stream
(recommended pore-size: 5 µm).
If back flow can occur, the use of a downstream filter and a check valve is
also recommended. Select a suitable filter size, to avoid a too high pressure
drop.
4
Install fluid connections
Mount the instrument in the line in accordance with the flow arrow on the
instrument body. Tighten the fluid connections according to the
instructions of the supplier of the fittings. The use of Swagelok® RS-type
stainless steel adapters is recommended.
Mounting the instrument in the upright position is preferred, especially if the operating pressure will be higher than
10 bar. When mounting the instrument in a position with upward or downward flow, adjusting the zero point is
advised (see step 10).
Avoid installation in close proximity of mechanic vibration and/or heat sources.
5
Leak check
Check the fluid system for leaks before applying pressure, especially if toxic, explosive or other dangerous fluids
are used.
6
Electrical connection
Electrical connections must be made with standard cables or according to the applicable hook-up diagram (see
page 2): EL-FLOW® Select instruments are powered with +15…24 Vdc.
A. Analog connection
B. Digital RS232 connection powered by plug in
power supply
C. Fieldbus (e.g. DeviceNet™)
