Gestra NRG16-42

Gestra

产品编号: NRG16-42
生产厂家: Gestra
Confirmed Rating: ☆☆☆☆☆ ☆ (3.1)
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Datasheets for Gestra NRG16-42

Description for 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.

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