Description: NRG16-42 ( Gestra
)
Gestra NRG16-42
Product Name: Gestra NRG16-42
Product Brand: Gestra
Product Code: NRG16-42
Product Artikel: Gestra NRG16-42
System Description
The level electrode operation is based on the conductive
measuring principle. The NRG 16-42 is designed for
signalling max. four liquid levels in electrically conductive
liquids:
■ 4 levels with one switchpoint each
■ High-level alarm, low-level alarm, pump ON,
pump OFF with one switchpoint each.
Use level electrode NRG 16-42 in conjunction with level
switch NRS 1-42 or other system components. The level data
are transferred from the the electrode to the level switch or
an additional system component via CAN data bus, using
the CANopen protocol. Function
The conductivity of the liquid is used to signal the liquid
level. Some liquids are conductive, which means that they
allow an electric current to flow through them. For the safe
functioning of this device a minimum conductivity of the liquid
to be measured is required.
The conductivity measurement method can detect two
conditions: electrode rod submerged or exposed, meaning
switchpoint reached (or exceeded) or not yet reached. Before
installation, the length of the electrode rod must be cut to
the required switching level, e. g. for limit alarms, valve/
pumps on/off etc.
At regular intervals the level electrode NRG 16-42 sends
a data telegram to the switching controller NRS 1-42. The
data are transferred via a CAN bus to DIN ISO 11898 using
the CANopen protocol.
