5
WE2107
A2087-1.3 en/de
HBM
Safety instructions
The device must not be modified from the design or safety engineering point
of view except with our express agreement. Any modification shall exclude all
liability on our part for any damage resulting therefrom.
Repair is specifically forbidden. Repairs must only be carried out by HBM.
All the factory defaults are stored at the factory so that they are safe from
power failure and cannot be deleted or overwritten. They can be reset at any
time by using the command
TDD0
.
The transducer connection must always be assigned. It is essential for a
transducer or a bridge model to be connected up for operation.
When replacing the battery for the real‐time clock, the device must be discon
nected from the power supply.
The production number set at the factory must not be changed.
D
There are not normally any hazards associated with the product, provided
the notes and instructions for project planning, installation, appropriate
operation and maintenance are observed.
D
It is essential to comply with the safety and accident prevention regulations
specific to the particular application.
D
Installation and start‐up must only be carried out by suitably qualified per
sonnel.
D
Do not allow damp and dirt to get inside the device when connecting
the cables.
D
When connecting the cables, take action to prevent electrostatic discharge
as this may damage the electronics.
D
The required power supply for the device is an extra‐low voltage (12...30 V)
with safe disconnection from the mains.
D
When connecting additional devices, comply with the safety requirements.
D
Do not exceed maximum voltage levels when connecting external controls
to the process inputs and process outputs of the WE2107.
D
The ground connections of the supply, of the process inputs and process
outputs, of the interface and of the load cell cable shield, must be intercon
nected in the device. If the potentials of the devices to be connected are
different, suitable steps must be taken to isolate the signals (such as using
an optocoupler).
