Installation Recommendation; Electrical Connections; Start-Up Procedure - Bühler technologies BCM-WS, BCM-WD Guía Rápida

BCM
DANGER
Electric voltage
Risk of electric shock
When connecting devices, please note the maximum voltages
and currents (see technical data) and use the correct wire
cross-sections and circuit breakers.
When selecting the connection lines, also note the maximum
operating temperatures of the devices.
Installation in special areas of application:
If the device will be installed outdoors or in wet areas, the
maximum operating voltage is 35 V DC.
The flange-mounted display units can be swivelled vertically
by approx. 270° so they are easier to read. Please note the
built-in swivel stop. You will notice more resistance when
reaching the stop. Turning it beyond this stop may damage
the display unit.

4.1.1 Installation recommendation

Proper moisture sensor function requires the entire sensor
element to be inside the medium at all times. The sensor ver-
sion is suitable for installation at the side of the tank. Here the
installation position should be below the minimum liquid
level. When installing into a return pipe, be sure not to exceed
the maximum flow rate.
Installation example:
Assembly block dimensions:
BX150101 ◦ 03/2018
100
G3/4
80
4.1.2 Durability
Please note, the BCM must only be operated with approved
mediums:
• HLP hydraulic oils per DIN 51524 Part 2
• HVL hydraulic oils per DIN 51524 Part 3
• CL lubricants per DIN 51517 Part 2
• CLP lubricants per DIN 51517 Part 3
• Insulating oils per DIN 57370 or VDE 0370.12.78
• Turbine oils per DIN 51515 Part 1
• Heat transfer fluids per DIN 51522
• HF-A hydraulic fluid
• HF-C hydraulic fluid
• HF-D hydraulic fluid

4.2 Electrical connections

Electricity is supplied via plug connectors. Please refer to the
appendix for installation dimensions, nominal voltage and
plug configuration.
The switching outputs are PNP transistors (see illustration):
Supply voltage
Note: When measuring the switching output with high-load
measuring device inputs or when used as a frequency output,
the load must be set to 10 kΩ between the output and earth
(GND) to avoid faulty measurements.
5 Operation and Control
NOTICE
The device must not be operated beyond its specifications.
5.1 BCM-WD/BCM-WR
This explanation of operation refers to the versions with dis-
play unit.

5.1.1 Start-up procedure

The device will automatically switch on when connected to
power. It will first briefly display the software version, at
which time the device will also check the built-in components.
The display will then switch to displaying measurements.
The following describes the function of the display and control
unit:
LEDs
Control keys
Display
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