Etatron eSelect B2 - Eselect B2;B3 PROBES CONNECTION

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3.5. eSelect B2/B3 PROBES CONNECTION
A BNC connector for connecting pH or Redox probes, plus a 4-pin connector for connecting a Chlorine
probe, are provided in the bottom of the instrument. The connection diagram is as follows:
Power supply 4 pins connector:
Pin 1 : White (+5V)
Pin 2 : Not connected
Pin 3 : Not connected
Pin 4 : Brown (-5V)