Input/Output External Connections (For External Accessory) - Etatron DLX-DLXB pH/M Notice D'installation, Emploi Et Entretien

6.7 INPUT/OUTPUT EXTERNAL CONNECTIONS (FOR EXTERNAL ACCESSORY)

As shows on paragraph 3.2 the two connectors are used for connecting the level control switch and the mA
output signal.
It is very important to disconnect the power from the pump when connecting the accessories. It is also very
important to protect the unutilized connectors with male connectors supplied with the pump.
Such operation will protect the internal circuitry from unwanted shorts and/or the power surge either from the
operator or from different sources. There will be no accessible contacts after installation is completed.
It is imperative that the accessories will be supplied by the factory to avoid unwanted mismatched situations
and/or furthed possible damage (wich in this this case will be no covered by the warranty).
Further more cables and accessories must be idoneus and rated for the proper voltage and type of insulation.
SUMMARY OF TYPE OF CONNECTIONS
1. INPUT LEVEL SWITCH: as shown on paragraph 3.2 the pins #3-4 from position 2 are dedicated to the
operation of the level sensor. Such operation is activated by a float containing one magnet if the liquid is below
the position or completely absent the flow will slide down activating a reed switch.
2. OUTPUT mA SIGNAL: an mA signal that can be used to connect a pH or Rx recorder is available on pins 3 (+)
and 4 (-) of the connector in position 3 (see paragraph 3.2).
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