PDU–4xx–W
©
Dinel, s.r.o.
4
The PDU-4x0-W meter is equipped with one current input 0-20 / 4-20mA and one voltage input
0-5 / 1-5 / 0-10 / 2-10V. Current input has additionally overcurrent protection circuit, which pro-
tects standard resistor. The selection of active input is realised by software, and selected input
can be changed at any time. Additionally the PDU-4x0-W allows user to select a conversion
characteristic of several kinds: linear, square, square root, user defined (max.20 points length)
and volume characteristics of a cylindrical tank in the vertical and horizontal position. Result is
showed on 4-digit LED display. Displayed values range can be selected by user, from -999 to
9999, plus decimal point.
Depending on version the device can be equipped with: two relay outputs, two OC type outputs,
one relay and one passive isolated current output or one OC type and one passive isolated cur-
rent output. Device PDU-4x0-W is equipped with RS-485 / Modbus RTU communication interface
and sensor supply output. The meter can be ordered in two power supply versions.
The device has 4 buttons being used for main presets programming. To get high protection level,
the keyboard is mounted under transparent cover. To allow user to change presets without open-
ing the cover, an IR sensor is mounted. Remote controller keyboard is equivalent to the device
keyboard (Note, that remote controller is not a part of the PDU-4x0-W set – it is an additional
equipment).
1 . Basic description
All operations described in this instruction manual have to be carried out by trained personnel
or by an accredited person only. Warranty and post warranty service must be exclusively
carried out by the manufacturer.
Improper use, installation or set-up of the sensor can lead to crashes in the application.
The manufacturer is not responsible for improper use, loss of work caused by either direct
or indirect damage, and for expenses incurred at the time of installation or during the period
of use of the level sensors.
To ensure maximum safety of control processes, we have defined the following safety instructions and
information. Each instruction is labelled with the appropriate pictogram.
Alert, warning, danger
This symbol informs you about particularly important instructions for installation and opera-
tion of equipment or dangerous situations that may occur during the installation and op-
eration. Not observing these instructions may cause disturbance, damage or destruction of
equipment or may cause injury.
Information
This symbol indicates particularly important characteristics of the device.
Note
This symbol indicates helpful additional information.
Used symbols
Safety
