Copper/Nickel Sensors

Copper and Nickel Sensors

Optoelectronic devices that are used in conjunction with Walchem's on-line analyzers in a variety of applications including electroless copper or nickel baths, microetch baths and a number of other chemistries that contain more than 0.10 grams/liter (g/L) of copper or nickel ions. Flow-through sensors are available for out-of-tank monitoring of solutions, and immersible sensors (copper only) are available for direct in-tank monitoring.

Key Features

Monitoring & Control

• Concentration Read in Units
  • Selectable between grams per liter (g/L) or ounces per gallon (oz/gal)
  • Backlit digital display with bar graph visualization
  • Continuous measurement versus set point monitoring

Operator Controls

• Adjustable Parameters
  • Concentration set point
  • High and low alarm set points
  • Dead band settings
  • Pump operation timing
  • Interlock capability with external devices

Data Management

• Integrated Data Collection
  • USB data download capability
  • System performance validation
  • Data and event logging
  • Tracks copper/nickel values
  • Records chemical feed times
  • Monitors relay activation

Control Capabilities

Standard Features (WCU)

• Four separate control relays and outputs
• Chemistry addition options:
  • Copper
  • Caustic
  • Formaldehyde
  • Chelator/stabilizer
• Replenishment totalizer for each output
  • Time-based units
  • Volume-based units

Optional Features (WNI)

• pH Input Board
  • pH adjustment chemistry control
  • Replenishment totalizer functionality
  • Time/volume unit settings