Hydrotech MP Series PULSAtron Manual do Utilizador descarregar pdf (Página 21)

The pump responds to a straight (non-ratio) 4-20 mA signal as follows: (Figure N below shows straight

response and response ratioed by 25, 50 and 75%):

The pump responds to a 20-4 mA signal as follows. (Figure O below shows straight response and response

ratioed by 25, 50 and 75%):

The signal cord is provided with the pump and has the following polarity:

White = Positive (+)

Black = Common

Signal input impedance is 187 ohms.

OUTPUT RELAY

Each pump has the option of being provided with one of two separate normally open output relay options as

described below. Relays close according to the option selected, and remain closed during the condition specified

for the selected option except for the Repeat Strokes option.

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Hydrotech MP Series PULSAtron Manual do Utilizador Página 21