Installation And Connection; Installation Site Requirements; Hydraulic Connection - Bühler technologies BPM Guía Rápida

BPM
CAUTION
Danger due to improper use
Property damage
The particle monitor may only be used as specified in chapter
"Intended Use".
Hydraulic oil leaks or spills
Environmental pollution and contamination of the ground-
water.
Use oil binder to soak up leaked hydraulic oil.
Contamination due to liquids and foreign objects
Premature wear - malfunctions - risk of damage - property
damage.
Ensure cleanliness during installation to prevent foreign ob-
jects, e.g. welding beads or metal shavings from entering the
hydraulic lines and causing wear and malfunctions in the
product.
Ensure the connections, hydraulic lines and add-on parts (e.g.
gauges) are clean and free from shavings.
Before initial use, verify all hydraulic and mechanical connec-
tions are connected and tight and that all seals and fasteners
on plug connections are properly installed and undamaged.
Use residue-free industrial wipes to remove lubricants and
other contamination.
Ensure the connections, hydraulic lines and add-on parts are
clean.
Ensure contaminants cannot enter when closing the connec-
tions.
Ensure cleaners do not enter the hydraulic system.
Do not use polishing wool or cleaning cloths giving up fluff.
Do not seal with hemp.
NOTICE
Functional limit
Damage to the pressure equalisation membranes. Impair-
ment of protection class IP67.
At the back of the device is a pressure equalisation mem-
brane which must never be damaged. Take the appropriate
care when working on the back of the device.
At the back of the device is a decal indicating the laser beam
between a Minimess connector and the connection for the
sensor cable.
3 Transport and storage
Only transport the product inside the original packaging or a
suitable alternative.
The equipment must be protected from moisture and heat
when not in use. It must be stored in a covered, dry, dust-free
room at room temperature.
12 Bühler Technologies GmbH

4 Installation and connection

4.1 Installation site requirements

Please observe this information when determining the install-
ation site:
• Connect the particle monitor in the bypass to a pressure
line.
• Any direction of flow is permitted.
• The pressures should as constant as possible.
• The pressure may vary, however pressure peaks or strong
fluctuations are not permitted.
• The volume flow must be constant, between 50 ... 400 ml/
min.
• The flow control or pressure reduction must always be in-
stalled downstream from the particle monitor in the re-
turn, as these can produce turbulences or air bubbles
which can result in faulty measurements.
• If a pump is required to generate the necessary flow rate,
it should be low pulsation and installed upstream from
the particle monitor.
• Otherwise bubbles may occur when installed on the suc-
tion side, which will cause faulty measurements.
• If air bubbles in the system are suspected, a settling sec-
tion in form of an approx. 2 m hose will be required in
front of the device.

4.2 Hydraulic Connection

The sensor has two 1/4" screw connections and comes with
factory installed Minimess connectors. The system pressure
generates the necessary flow rate and may need to be
throttled downstream from the device.
Any direction of flow is permitted.
The device should be installed in an accessible location to be
able to read the display and operate the console. The risk of
larger particles settling increases with the length of the line.
Furthermore, particularly when using higher viscosities and
Minimess lines the pressure should be sufficiently high to set
the volume flow between 50 and 400 ml/min.
The Minimess connections can be replaced with any other
screw connection. In this case, please note the maximum
tightening torque of 25 Nm.
Dirt, shavings or other contaminants must not enter the
device when replacing the couplers.
Fig. 1: Hydraulic connection, avoid blind holes in the supply
line
Installation should be in the hydraulic circuit in a location rel-
evant to the measuring task with constant pressure condi-
tions.
The pressure may vary, but must not have peaks or strong
fluctuations.
BX150102 ◦ 03/2021