Quick Installation Guide
Doc nr.: 9.17.052H Date: 10-12-2015
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
6. Electrical connection
2. Check safety properties
7. Operation
3. Check piping
8. Multi-functional switch
4. Mount/install instrument
9. Purging
5. Leak check
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)
(document nr. 9.16.044)
- Hookup diagram mini CORI-FLOW™ and CORI-FLOW™ (general)
- FlowPlot Manual
(document nr. 9.17.030)
Depending on optional fieldbus interface:
Fieldbus/interface description
- RS232 Interface with FLOW-BUS protocol
- FLOW-BUS Interface
- PROFIBUS DP Interface
- DeviceNet™ Interface
- Modbus interface
Hookup diagram
These documents can be downloaded from the website:
http://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.
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)
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.
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.
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.
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.
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.
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
Mounting position general
For gas and liquid mini CORI-FLOW™ meters can be mounted in any position for a proper measurement.
© Bronkhorst High-Tech B.V.
Mounting position (integrated) valve with purge connector
Only for mini CORI-FLOW™ instruments with (integrated) liquid valve with purge adaptor, mounting position
can be critical for a good quality of de-gassing.
Please consult the Instruction Manual for additional information on mounting the mini CORI-FLOW instruments. This
document can be found in the download section of our website: coriolis.bronkhorst.com/en/downloads/
Liquid purging
In order to remove gas bubbles during start-up, flushing with relatively high flow rate of liquid for some minutes is
Gas purging
In order to remove condensation drops during start-up, flushing with dry gas for some minutes with high flow rate is
Leak tightness
Verification of leaks is required prior starting up of the process.
Leak check
Check the system for leaks before applying (fluid) pressure. Especially if toxic, explosive or other dangerous fluids
are used!
Gas tight is not the same as liquid tight
Please note that connections which are tight for liquid, could still be untight for gas. This can result in Air enclosure
in the liquid, e.g. when using pumps, which might lead to errors in measurement.
Electrical connection
Electrical connections must be made with a standard cable or according to
the mini CORI-FLOW™ hook-up diagram.
mini CORI-FLOW™ instruments have a IP65 ingress protection rating.
Optional mini CORI-FLOW™ instruments can be ATEX Zone 2 protected. For ATEX Zone 2 applications, all
(optional) connectors and the impact protection cover must be mounted on the instrument.
Analog/Local operation
Connect the mini CORI-FLOW™ to the power supply/readout unit with the 8-pin cable at the circular connector.
The two examples below have the following electrical properties:
: +15...+24 Vdc
: 0...5 Vdc / 0...10 Vdc
0...20 mA / 4...20 mA
Example 1
Example 2
Analog input : 0...5 Vdc / 0...10 Vdc
0...20 mA / 4...20 mA
BUS/digital operation
For this procedure see description
for RS232 operation or specific
(optional) fieldbus.
RS232 connection cable 7.03.444
enables to use (free downloadable)
tooling programs for Windows.
Example 3
Example 4
Multi-functional switch operation
Using the 2 colored LEDs and the switch on the mini CORI-FLOW™, several
actions can be monitored and started. The green LED is used for status
indication. The red LED is used for errors/warnings. The switch can be used to
start several actions, such as auto-zero, restore factory settings and businitialization actions. See specific zero-procedure part in this manual or see
‘General instructions for mini CORI-FLOW™’ for more details.
Important warning! When red LED blinks shortly: measuring signal is unstably or noisy: instrument is possibly
exposed to vibrations or pulsating flow.
In systems for use with corrosive or reactive fluids, purging with an inert gas is absolutely necessary before use. After
use with corrosive or reactive fluids, complete purging is also required before exposing the system to air. Purge the
mini CORI-FLOW™ with actual fluid to get rid of all the Air/gas in the tubes (for liquids) or to remove all possible
condensation drops (for gases).
Special control mode for purging
In case of a mini CORI-FLOW™ controller give setpoint = 100 % to control the valve or the pump. It is also possible
to use special control mode = 8 to fully open the valve or set the pump at max. rpm, using a digital interface. This
will bypass the PID-controller and might be usefull when having the mini CORI-FLOW™ set to a low capacity. It will
ensure you to get the highest possible flow for purging.
Warm-up time
Let the mini CORI-FLOW™ warm-up for at least 30 minutes for best accuracy.
Before first use, when process conditions change significantly (especially temperature) or when the instrument has
been re-mounted (e.g. after servicing) it is recommended to perform an automatic zero action with the mini CORIFLOW™. This action can be started manually (as described below) or via a digital interface (see document Operation
instructions digital instruments: 9.17.023). Under normal (constant) conditions it will not be necessary to zero before
each application start-up.
Set process conditionsAfter warming-up, pressuring and purging the system, including the mini CORI-FLOW™,
prepare the mini CORI-FLOW™ for actual process conditions.
Stop flow
© Bronkhorst High-Tech B.V.
Make sure there is no flow through the mini CORIFLOW™ by closing a shut-off valve (in front of and)
after the instrument. At least one (shut-off) valve
after the mini CORI-FLOW™ is required. High
quality up- and downstream shut-off valves are
recommended for proper zero point calibration.
Start Auto-Zero
With no flow, use the push-button switch (#) on the
mini CORI-FLOW™ to start the zero adjustment
procedure (LEDs first will go off). (1), (2) and (3):
Press the push-button (#) and hold it for 8..12
seconds (each 4 seconds the LED-indication will
change). (4): Release the push-button (#) when the
green LED is on.
Zeroing procedure
The zeroing procedure will start now and the green
LED will blink fast. The procedure will take at least
45 sec. When the signal is not stable the procedure
will take longer (max. 6 retries will be performed).
The red LED will blink when signal is unstable/noisy.
Make sure that there is no flow through the mini
CORI-FLOW™ when performing the zeroing
procedure and avoid vibrations !
When indication is showing 0% signal and the
green indication LED is continuously on, then zero
has been performed well. Instrument is in normal
operation mode now and ready for use.
Measurement check
For a controller: send a setpoint to the mini CORI-FLOW™ and check the measured value.
Make sure the mini CORI-FLOW™ indicates 0% at zero flow.
Your mini CORI-FLOW™ is now ready for operation.
Bronkhorst High-Tech B.V., Nijverheidsstraat 1a, NL-7261AK Ruurlo The Netherlands
T +31(0)573 45 88 00 F +31(0)573 45 88 08 I www.bronkhorst.com E [email protected]
45 sec.
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