9.17.093
4
4.5
Mounting position when using mini CORI-FLOW™ ML120 with external valve with purge connector
For the
mini CORI-FLOW™ ML 120
series instruments with external liquid valve with a purge connector, the
mounting position can be critical for a good quality of de-gassing.
i
www
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:
www.bronkhorst-cori-tech.com/en/
downloads/instruction_manuals/
Liquid purging
In order to remove gas bubbles during start-up, flushing with relatively high flow rate of liquid for a few seconds is
recommended.
Leak tightness
Verification of leaks is required prior starting up of the process.
5
Leak check
Check the system for leaks before applying (fluid) pressure. Especially if toxic, explosive or other dangerous fluids
are used!
Avoid condensation due to cold liquids/gases at high humidity environments.
Liquid tight is not the same as gas 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 external valves, which might lead to errors in measurement.
6
Electrical connection
Electrical connections must be made with a standard cable or according to
the
mini CORI-FLOW™ ML120
hook-up diagram.
mini CORI-FLOW™ ML120
instruments have a IP40 ingress protection rating.
7.1
Analog/Local operation
Connect the
mini CORI-FLOW™ ML120
to the power supply/readout unit with the D9 cable at the Sub D9
connector. The two examples below have the following electrical properties:
Power
Analog
output
Analog input
(controller)
: +15...+24 Vdc
: 0...5 Vdc / 0...10 Vdc
0...20 mA / 4...20 mA
: 0...5 Vdc / 0...10 Vdc
0...20 mA / 4...20 mA
Example 1
Example 2
