Burkert 8745 MFC Ethernet, Руководство по эксплуатации

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Setting and Operation
Type 8745 Ethernet, 8745 Analogue
WARNING
risk of injury that is due to improper operation.
Improper operation can lead to injuries and damage to the
product and its environment.
▶
The operating personnel must have read and understood the
content of the Operating Instructions.
▶
Observe the safety information and the intended use.
▶
Only properly trained personnel may operate the installation
and the product.
▶
Only properly trained personnel may do the settings with the
help of the Bürkert Communicator software.
10.2 Functions
10.2.1 Zero-point shut-off (MFC)
A zero-point shut-off ensures the sealing function of the control
valve. The zero-point shut-off is activated if the following conditions
occur simultaneously:
1.
Set-point value < 2 % of nominal flow rate Q
nominal
(with
measuring range 1:50)
2. Measured value < 2 % of nominal flow rate Q
nominal
(with
measuring range 1:50)
If the zero-point shut-off is active, then the PWM signal is set
to 0% so that the control valve is completely closed.
10.2.2 Flush mode (MFC Ethernet)
NOTICE
If the control valve is fully open, then the internal product temper -
ature increases. And if the internal product temperature increases,
then the product can be damaged.
•
Do not let the control valve fully open for more than
10 minutes.
To open the control valve completely, send one of the following
commands to the product:
•
an acyclic command
•
a cyclic command with the double nominal flow rate
10.3 Tools for doing settings
The MassFlowCommunicator is another PC software
that is not compatible with the product. You cannot use
the MassFlowCommunicator software to configure or
operate the product.
10.3.1 Product variant Analogue
Settings can be done with the Type 8920 Bürkert Communicator
software.
→ To connect the product to the Bürkert Communicator
software, refer to chpt. 10.4 .
→ For general information about the Bürkert Communicator
software, refer to the Type 8920 Operating Instructions.
English