9900 Modbus Module

 

Modbus communication to control systems has many advantages over 4 to 20 mA current loops such as multiple readings, multiple devices on a single pair of wires, and measurement error messages to indicate the quality of data. The 9900 modbus module will communicate is there is a missing sensor, missing probe, or wrong sensor, and confirm whether a reading is good.

 

The modbus module is compatible with the relay module, direct conductivity module, and the current loop module. The batch module can be installed with the modbus module, but no readings will be sent when the 9900 is set to the batch instrument.

 

Typical applications include wastewater treatment, reverse osmosis, deionization (ultrapure water, two bed and mixed bed system), chemical manufacturing and addition, metal and plastic finishing, fume scrubber, cooling towers, media filtration, and aquatic life support.