pH transmitters with RS-485 and Modbus RTU
Transfer pH readings digitally to your PLC or control system. This category includes pH transmitters with RS-485 and Modbus RTU for connection to a pH electrode, as well as measurement units for the TA40 immersion fitting.
pH-RS485-32: 5 V or 24 V
Select the version that matches your power supply:
- 0021.0240.5: 5 V DC, 50 mA – supply via pin 1 (brown), pin 2 not connected.
- 0021.0240.24: 24 V DC, 20 mA – supply via pin 2 (white), pin 1 not connected.
Both versions have a 5-pin M12 connector. Data sheets with connector drawings, the Modbus manual and the PC monitor are available on the product pages.
pH measurement with the TA40 immersion fitting
The TA40 measurement unit 0022.5000.24 combines pH measurement, temperature measurement and electronics in the fitting. The pH electrode can be replaced without opening the sealed electronics. TA40 tubes, heads and other accessories are also listed in this category; the scope of delivery is described on each product page.
