9.17.100 B
2
SCOPE OF THIS GUIDE
This Quick Installation Guide covers the
EL-PRESS
series Digital Pressure Meters and Controllers. These instruments are equipped
with a diaphragm type piezoelectric resistive pressure sensor and offer high accuracy, stability and reliability. These instruments
are designed for laboratory and clean processing conditions and are suited to measure and control pressure ranges between 0…
100 mbar and 0…400 bar.
EL-PRESS
instruments are equipped with a digital printed circuit board, featuring diagnostics 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.
This Quick Installation Guide will help you start up your
EL-PRESS
in 9 steps, covering the following subjects:
1.
Checking functional properties
2.
Checking pressure
3.
Checking piping
4.
Mounting/installing instrument
5.
Leak check
6
. Electrical connection
7.
Analog/digital operation
8.
Multifunctional switch operation
9.
Purging
Other applicable documents:
- Manual
EL-PRESS
series (document no. 9.17.101)
Interfaces
Manual
Hook-up diagram
- Analog/RS232 interface
9.17.027
9.16.119
- 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 interface
9.17.035
9.16.123
- PROFIBUS DP interface
9.17.025
9.16.121
- PROFINET interface
9.17.095
9.16.148
- Custom bus & I/O configurations
n/a
9.16.118
The instrument manual and hook-up diagrams can be downloaded from the
EL-PRESS
product pages on the
Bronkhorst website:
www.bronkhorst.com/products/pressure
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 Opened)
Input and output signal
2
a. Check tested pressure
Before installation, make sure that the test pressure is in accordance with
the safety factor of your application.
The test pressure is stated on the instrument with a red label. If this label is
missing, or if the test pressure is insufficient, the instrument must
not
be
mounted in the process line and should be returned to the factory.
b. Check operating conditions
EL-PRESS
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.
© 2018 Bronkhorst High-Tech B.V.
3
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
Mounting/installing
P-500/600/700 instruments
: install the instrument in the line in accordance with the flow arrow on the
instrument body.
P-800 instruments
: install the fluidic connections in accordance with the inscriptions on the instrument body
(IN, OUT, RELIEF)
Forward pressure control (P-600)
Back pressure control (P-700)
Process Pressure Controller (P-800)
For high flow rates, installing the pressure meter in a separate branch is
strongly recommended (using a T-piece fitting).
Tighten the fluidic connections according to the instructions of the supplier of the fittings. The use of Swagelok
RS-type stainless steel adapters and Bronkhorst® elastomer O-rings is recommended.
Avoid installation in close proximity of mechanic vibration and/or heat sources.
5
Leak check
Check the system for leaks before applying (fluid) 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-PRESS
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™)
Never
power the instrument simultaneously from
two different power sources
(e.g. fieldbus connection and
Plug-in Power Supply). Doing so will damage the printed circuit board irreparably.
