Current Loop pH Controllers

Microprocessor-based pH Controller -- PHCN-37
from OMEGA Engineering, Inc.

This new microprocessor-based family of pH, ORP and pH/ORP panel mounted controller is designed for a wide variety of environmental monitoring applications. The units features automatic or manual temperature compensation of pH, two 5 amp mechanical relays and a choice of a scalable 4 to 20 mA, or 0... [See More]

  • Control Signal: Analog Voltage Output; Current Loop Output; Switched Output
  • Control: Limit; Nonlinear
  • Controller Type: pH / ORP
  • Features: Rate Indication/ Control
Conductivity, pH/ORP & Disinfection -- W100P
from Iwaki America and Walchem, IWAKI America Inc

The W100P series provide an economical and reliable. way to keep your water treatment program under control. Key Features: Large display with icon based programming makes setup easy. Compact ¼ DIN panel mount enclosure. Universal sensor input provides extraordinary flexibility; the same... [See More]

  • Control Signal: Current Loop Output; Switched Output; Pulse / Frequency
  • Control: Limit; PID
  • Controller Type: pH / ORP
  • Features: Multi-Function
Flow Controller -- SC200
from Hach

The SC200 Universal Controller is the most versatile controller on the market. It allows the use of digital and analog sensors, either alone or in combination, to provide compatibility with the broadest range of sensors. It replaces the Hach SC100 digital and GLI53 analog controllers with advanced... [See More]

  • Control Signal: Current Loop Output; Serial / Digital (optional feature); Network / Fieldbus Output (optional feature)
  • Control: Linear; PID
  • Controller Type: Laboratory; pH / ORP (optional feature); Conductivity, pH/DO
  • Features: Multi-Function; Datalogger
High Accuracy Process Controller -- 900 Series
from Florite International, Inc.

The 900 Series is an economic one loop microcomputer-based instrument incorporating user selectable digital and analog inputs, as well as analog and relay outputs.  Other 900 Series features include .005% high accuracy PID, batch, and dose control functions. Additionally, the 900 Series encompasses... [See More]

  • Control Signal: Analog Voltage Output; Current Loop Output; Switched Output; Serial / Digital; Network / Fieldbus Output; Screw Terminal
  • Control: Limit; Linear; Feedforward; PID
  • Controller Type: Laboratory; pH / ORP
  • Features: PLC; Multi-Function; Datalogger; Is a Chart Recorder; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control
pH/ORP/Conductivity Controller -- PHUCN601
from OMEGA Engineering, Inc.

The PHUCN600 Series multi-parameter controller is a microprocessor-based controller capable of measuring one of the following parameters, pH, ORP, or conductivity. When shipped from the factory, the PHUCN600 Series is not set to measure any one parameter.When the PHUCN600 Series is powered up for... [See More]

  • Control Signal: Analog Voltage Output; Current Loop Output; Switched Output
  • Control: Limit
  • Controller Type: pH / ORP; Conductivity Controller
  • Features: Is a Chart Recorder; Rate Indication/ Control
pH & ORP Controller -- WPH420
from Iwaki America and Walchem, IWAKI America Inc

The WPH410/420 Series pH/ORP on-line process controllers are designed for a broad range of industrial, commercial, and municipal water treatment applications. WPH controllers are easily configured to accurately measure pH or mV (ORP) values from Walchem ’s WEL and WDS differential combination... [See More]

  • Control Signal: Current Loop Output; Switched Output; Pulse / Frequency
  • Control: Limit; PID
  • Controller Type: pH / ORP
  • Features: Multi-Function
Intelligent Integrated Instrument System -- Model 990
from Florite International, Inc.

The Florite Model 990X is an innovative, technically superior, high quality and reliable microcomputer-based controller suitable for any commercial or industrial application. The instruments user configurable screw-terminal channels enable any mix of up to eight inputs and or outputs regardless of... [See More]

  • Control Signal: Analog Voltage Output; Current Loop Output; Switched Output; Serial / Digital; Network / Fieldbus Output; Screw Terminal, DA15
  • Control: Limit; Linear; Feedforward; PID
  • Controller Type: Laboratory; pH / ORP
  • Features: PLC; Multi-Function; Datalogger; Is a Chart Recorder; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control