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HE 5842 HIMOD analogue input module pH-value / temperature


The analogue input module (pH-value / temperature) HE 5842 acquires up to two analogue measured values from thermocouples (lambda probes) as well as up to two measured values from high-resistance voltage sources. In the event of service, the module can be exchanged quickly and without complications in running operation (Hot Swap). The temperature compensation takes place directly in the module. In addition a cold junction compensation with a constant value or with measured cold junction can be connected. The signal status of the inputs is indicated via status-LEDs. The areas of power supply voltage, field bus, logics and inputs are isolated galvanically from each other. In the event of error the modules operate with previously predefined error values, in order to ensure safe process control (Fail Safe).

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HE 5842 HIMOD analogue input module pH-value / temperature
HE 5842 HIMOD analogue input module pH-value / temperature
Block diagram
Block diagram