Hanna-instruments PCA 300 Series Manual do Utilizador descarregar pdf (Página 20)

Recorder Output

Recorder output connections are made as indicated on the

picture aside. The control panel must be opened.

A wiring access hole is located on the left side of the instru-

ment case. Use two wire shielded cable with the shield

connected at the analyzer end only. This wire access hole

should be used only for recorder or serial I/O cables (low

voltage).

The recommended recorder hookup uses a

shielded, twisted-pair cable. The shield

should be connected to Earth terminal at

the instrument end and left open at the re-

corder end. Refer to the drawing here for

proper wire connections.

To operate with this hookup, the following conditions are re-

quired at the recorder end:

• The input to the recorder must be isolated from the chassis

ground (earth) of the recorder;

• If the recorder has more than one input, they must be dif-

ferential inputs.

A choice of outputs, 0-10mV, 0-100mV, 0-1V or 4-20 mA

may be made by selecting the appropriate DIP switch con-

figuration. The DIP switch is located in the upper right corner

of the main board on the back of the control panel.

Earth

Ground

Out

Recorder

Output

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Hanna-instruments PCA 300 Series Manual do Utilizador Página 20