Siemens SIMATIC ET 200S Manual - Halaman 12

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Properties

1.1 2AI RTD HF analog electronic module (6ES7134-4NB51-0AB0)

Use of Cu10 sensors

● Select "Three-wire thermal resistor" and "Cu10" at parameter assignment.

● Wire the Cu10 sensor in accordance with the three-wire connection method.

● Automatic, internal compensation of line resistance for the missing measuring line occurs

Note

Please note the following to ensure optimum line compensation in the case of Cu10:

• The sum of the cable resistance and measurement resistance must not exceed 31 Ω.

• The cable must have a resistance of no more than 8 Ω if you want to use the

during operation.

temperature range up to and above 312 °C.

Example: A 200 m Cu cable with a 0.5 mm

approximately 7 Ω. A smaller cross-section shortens the permissible cable length

accordingly.

conductor cross-section has

2AI RTD HF analog electronic module (6ES7134-4NB51-0AB0)

Manual, 05/2007, A5E01076876-02