The APX1-C1/C1Z Online pH/ORP Controller is designed for the continuous monitoring of pH or ORP in aqueous solutions, which makes it an exceptionally versatile instrument. Because water quality is critical in so many sectors, the same rugged controller can be found performing reliably in an impressive range of applications worldwide.
In each of these environments, the APX1-C1/C1Z proves its value through flexible control. Its two SPST relay outputs can be assigned to main value control, temperature control, or a timed wash cycle, while high-alarm and low-alarm logic configures automatically depending on the relationship between the on-value and off-value setpoints. A dedicated wash relay can drive automatic sensor cleaning, and a hold function freezes the displayed reading during cleaning to avoid false alarms.
For data logging and SCADA integration, the controller provides one active current output configurable as 4~20 mA or 0~20 mA with a maximum load of 1000 Ω, plus optional RS485 MODBUS-RTU communication. Operators can therefore bring pH, ORP, and temperature values directly into their central control systems.
Whatever the industry, the APX1-C1/C1Z delivers consistent, accurate, and actionable water quality data that keeps processes efficient and compliant.
The controller's versatility comes from a combination of wide measurement ranges, selectable probe types, and configurable control logic. Because it accepts both pH glass and antimony probes, as well as standard ORP probes, the same hardware can be commissioned for very different chemistries. The temperature input supports NTC10K and PT1000 sensors, and the two relay channels can be repurposed between main-value, temperature, and wash duties according to the process. This adaptability means a single spare part can serve an entire site, simplifying inventory and maintenance planning.
Regulators increasingly require facilities to demonstrate continuous, documented control of water quality. By providing reliable pH, ORP, and temperature data, with analog and digital outputs for logging, the APX1-C1/C1Z helps operators build the audit trail that compliance demands, while also supporting the sustainability goals of reduced chemical consumption and lower waste volumes.
Kontak Person: Ms. Yuki Fu
Tel: +8615716217387