Multiple Redox or PH probes Switch / Selector

  High impedance inputs 
  Automated / Manual
  Ready for Data Logger
  Make Probes readable by standard voltmeters / equipment
  Low Power Consumption
  Make negative voltages readable by any instrument.

• The multiplexer MPX400 has been designed in order to make PH probes or Redox probes readable by standard voltmeters, dataloggers, and data acquisition boards.
• PH probes and Redox probes output negative or positive voltages at very high impedance that cannot be read by standard instrumentation.
• MPX400  lowers the output impedance and at the same time converts negative voltages into the positive range by adding a programmable fixed offset.  
• The device allows the automated or manual selection of the probe to be read.
• It can be used as simple manual probe selector or the selection can be controlled by a digital signal (voltage on/off) by a datalogger or other   data acquisition system.
• An important feature is that when a probe is selected the others are completely disconnected ad always there is complete galvanic insulation between the probes.

• Operating temperature: -40°C + 85°C
• Protection index: IP54
• 4 inputs:+-2.5V
• output 0-5V or 0-2V +-2.5V Programmable by bridge on rear connector.
• Input impedance > 1000 Mohm
• Battery powered 6 X 1.5V Alkaline
• Auto Off function
• Flexible simple digital interface (each pulse or switch closure shifts sequentially on the next Redox Probe or PH probe.
• Complete galvanic insulation between the inputs.