Microlink 3800 - Four pH Inputs
The Microlink 3000 system comprises a frame of modules each dedicated to a specific task: voltage input, counting, output control, etc. The 3800 module is dedicated to pH measurement.
pH electrodes have a very high input impedance and so you cannot connect them directly to the Microlink 3050 analogue input module. Instead connect them to the BNC sockets on the Microlink 3800, which are input protected. The 4 amplifiers on the 3800 convert the pH signals to a level acceptable by the Microlink 3050 analogue input module, so you can simply connect the 3800 to the 3050 by a ribbon cable. You can thus take pH measurements alongside, for example, temperature measurements.