Precision-digital PD6830 Manual do Utilizador descarregar pdf (Página 15)

PD6830 Pulse Input Rate/Totalizer Instruction Manual

15

Input Signal Connections

Signal connections are made to a barrier terminal mounted in the base of the

enclosure. Input level and type are configured using two slide switches on the bottom

of the display module as shown in the lower right of the following figures.

ISO+ ISO- S+ S- COM

Flowmeter

(Pulse Output)

Power

Supply

V mV

INPUT LEVEL

PNP NPN

INPUT TYPE

Figure 2. Flowmeter Powered by External Supply

ISO+ ISO- S+ S- COM

Flowmeter

(Pulse Output)

Power

Supply

V mV

INPUT LEVEL

PNP NPN

INPUT TYPE

Figure 3. Opto-Isolated Flowmeter Powered by External Supply

V mV

INPUT LEVEL

ISO+

ISO- S+ S- COM

Flowmeter

(Magnetic Pickup Coil)

PNP NPN

INPUT TYPE

Figure 4. Self-Powered Magnetic Pickup Coil Flowmeter

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 59 60

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