BRONKHORST mini CORI-FLOW, Быстрое руководство по установке

Страница: 2 / 6

2 9.17.052
SCOPE OF THIS GUIDE
mini CORI-FLOW™ instruments are highly accurate instruments for measuring and controlling the mass flow rate of liquids and/or
gases, independent of fluid properties. These smart Coriolis instruments offer multiple process values as input- or output
parameters. Many parameters can be read and/or changed using analog or digital interfaces.
Output parameters are: mass flow, density, temperature, totalized mass flow, alarms.
Input parameters are: setpoint (desired mass flow rate for controllers), reset alarm/counter.
This manual will help you start-up your mini CORI-FLOW™ in only 10 steps and contains:
1.
Instrument functional properties
2. Check safety properties
3. Check piping
4.
Mount/install instrument
5. Leak check
6.
Electrical connection
7. Operation
8. Multi-functional switch
9.
Purging
10. Zeroing
mini CORI-FLOW™
instruments have modular instruction manuals consisting of:
- Instruction manual mini CORI-FLOW™ (document nr. 9.17.050)
Info about e.g. : sensors, valves, liquid dosing systems, maintenance, tooling, calibration, Kv-value calculation, troubleshooting.
- Operation instructions digital instruments (document nr. 9.17.023)
- Hookup diagram mini CORI-FLOW™ and CORI-FLOW™ (general) (document nr. 9.16.044)
- FlowPlot Manual (document nr. 9.17.030)
Depending on optional fieldbus interface:
Fieldbus/interface description Manual Hookup diagram
- RS232 Interface with FLOW-BUS protocol 9.17.027 9.16.044
- FLOW-BUS Interface 9.17.024 9.16.048
- PROFIBUS DP Interface 9.17.025 9.16.049
- DeviceNet™ Interface 9.17.026 9.16.050
- Modbus interface 9.17.035 9.16.066
i
www
These documents can be downloaded from the website:
http s ://www.bronkhorst.com/qrcoriolis or can be sent by e-mail on request.
Notes for temperature considerations
After having used the mini CORI-FLOW™ the first time at low temperature tighten the fluid adaptor screws again in order to
prevent any leakage! Please note: if you do not tighten, the leaking adaptor / fitting can cause damage!
After the first shrinking and tightening of the screws, no further precaution is necessary.
Note that the maximum temperature in the housing of the mini CORI-FLOW™ is 70 °C.
To check this, the internal temperature sensor can be used. Temperature can be readout digitally via FLOW-DDE/
E-8000 (FlowDDE par. 142) or BRIGHT (local readout/control module).
Make sure the temperature value readout here (=actual temperature in housing) will not exceed 70 °C.
STARTING-UP
1 Check mini CORI-FLOW™ functional properties
Before installing your Mass Flow Meter/Controller it is important to
read the attached label and check:
 Flow rate

Fluid to be measured
 Up- and downstream pressures
 Input/output signal

Temperature
 Valve type (if controller)
© Bronkhorst High-Tech B.V. 3
2 Check test-pressure
The tested pressure is stated on the instrument with a red-coloured sticker.
Before installation, make sure that the test pressure is in accordance with
normal safety factors for your application. If there is no Pressure Testing
Sticker on the device or if the test pressure is incorrect, the instrument
should
not be mounted in the process line and be returned to the factory.
3 Check if system piping is clean
For reliable measurement always make sure the fluid stream is clean.
Use filters to assure a particle free liquid stream or a moisture- and
oil-free gas stream. Recommended pore size: 10...40 µm. If back flow can
occur, a downstream filter and a check valve are recommended too.
For high flow rates select a suitable filter size, to avoid too high pressure
drop or cavitation.
Warning!
During the manufacturing process, the instruments have been tested with water. Despite the fact that the
instruments have been purged thoroughly afterwards, we cannot guarantee that the delivered instruments are
absolutely free from water droplets. Bronkhorst strongly recommends performing an additional, adequate drying
procedure for those applications where remaining water particles may cause undesired reactions such as corrosion.
4.1 Mount/install instrument properly
Install the mini CORI-FLOW™ Meter/Controller in the line and tighten the fittings according to the instructions of
the supplier of the fittings. Mount the
mini CORI-FLOW™
instrument, with screws in the body, to a rigid, stiff base
body or heavy mass, such as a wall, heavy rig or stable steel construction. This is essential to achieve optimal
accuracy with the
mini CORI-FLOW™
instrument.
4.2 Flow direction
Install the
mini CORI-FLOW™
in accordance with the direction of
the FLOW arrow. The arrow for flow direction is indicated on the
mini CORI-FLOW™ , between process fittings.
4.3 Base mounting
Mount the mini CORI-FLOW™ instrument, with screws in the body, to a rigid, stiff base body or heavy mass on a
vibration-free position, such as a wall, heavy rig or stable construction. This is essential to achieve optimal accuracy
with the
mini CORI-FLOW™
instrument.
By default the mini CORI-FLOW™ M12, M13 and M14 will be delivered on a special mounting block for achieving
optimal accuracy.This mounting block has a mass and stiffness precisely tuned for the specific model.
Removing the mounting block will cause inaccuracy unless the instrument is firmly mounted on a stiff and rugged
surface.
4.4 Mounting position general
For gas and liquid
mini CORI-FLOW™
meters can be mounted in any position for a proper measurement.