Weidmuller PTX800A - Configurable counter and totalizer Manual do Utilizador descarregar pdf (Página 44)

Calibrate the output:

7. Calibrate the outputs to the new output range and type.

Input Type Selection

Input type selection is similar to output type selection except that the

input type is determined by the values of components on the main

board. You can either return the unit to the factory for modification or

change the components on the main PCB:

To change the input type:

ange the values of R1, R2, R3:

1. Gently remove the backplate (it is held in place by four lugs).

2. Sl

ide the electronics from the housing.

3. Change the components to the required values:

Input range R1 R2 R3

-24 to +24 mA 22 Ω 68 kΩ O mit

-11 to +11 V O mit 1 MΩ 47 k

Ω

(see diagram below for location).

Look inside the housing and note that there are connectors that

mate with the display board.

Slide the electronics gently back into the case. Carefully moving the

board until the keypad connectors engage with the display board.

6. Replace the backplate.

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Weidmuller PTX800A - Configurable counter and totalizer Manual do Utilizador Página 44