Chapter 4. WIRING

4-7 Connecting Inputs (analog inputs)

Connecting input 1

Multiple input 1 supports various sensor inputs. Connect as follows according to the sensor being used.

• Thermocouple input

• RTD input

31

31

32

32

33

33

34

34

C

B

A

• dc voltage input

31

32

33

34

• dc current input

31

32

33

V, mV

34

mA

Handling Precautions

Applying voltage across dc current input terminals (31) and (33) may cause faulty operation.

Take care of polarities (+,-) when wiring inputs.

Use only shielded cable for wiring inputs.

When using a thermocouple input, prevent air blasts from coming into contact with the terminal. Doing so might cause a reading error.

4-8

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Sonic Alert DCP301 user manual Connecting Inputs analog inputs, Connecting input