Bronkhorst®
Instruction Manual MI Series Industrial mini CORI-FLOW™
9.17.120A
8
Measuring principle
mini CORI-FLOW™
instruments contain a uniquely shaped, single loop sensor tube, forming part of an oscillating system.
When a fluid flows through the tube, Coriolis forces cause a variable phase shift, which is detected by sensors and fed into
the integrally mounted printed circuit board. The resulting output signal is strictly proportional to the real mass flow rate,
independent of fluid density, temperature, viscosity, pressure, heat capacity or conductivity. Coriolis mass flow
measurement is fast, accurate and inherently bi-directional. The
mini CORI-FLOW™
features density and temperature of the
fluid as secondary outputs.
Multi-range
The
MI Series Industrial mini CORI-FLOW™
offers multi-range functionality: factory calibrated ranges can be re-ranged to a
different full scale range. The analog output and the digital measured value are scaled accordingly. Switching between
ranges can be done via the RS232 interface or the fieldbus interface (if applicable), or with a Bronkhorst® readout and
control unit (E-8000, BRIGHT).
The instrument comes with a calibration certificate for all supported full scale ranges. The actual full scale of the instrument
is set to a value as ordered and can be found on the serial number label.
Custom I/O options
The Main connection and the Actuator connection (see
) each can provide additional input/output
functionality, selectable from a wide range of options (see
). In addition to the various analog signal
options and the standard RS232 communication, there are such options as RS485 communication, digital frequency/pulse
output, alarm output/reset, valve purge/close and analog valve output.
1.4
Product overview
Left side
1. Fluid inlet
2.
3. Fieldbus connection 1 (optional)
4. Fieldbus connection 2 (optional)
5. Cover
Right side
6. Additional actuator/remote display connection (optional)
7. Main connection
8. Bronkhorst® valve connection (optional)
9. Fluid outlet
Depending on the ordering details, fittings and/or connectors on your instrument might differ from the images above.
1.5
Calibration
The mini CORI-FLOW™ is factory calibrated. Periodical inspection, recalibration or verification of the accuracy may be subject
to individual requirements of the end user.
Bronkhorst certifies that the instrument meets the rated accuracy. Calibration has been performed using measurement
standards traceable to the Dutch Metrology Institute (VSL).
