Model 122 Alkaline Etchant Control 

Model 122 Etchant Control - dimensions
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CAT. # 122CMP
 PRICE $995

Advanced Features:

  1. Etchant Control can control etchant density to ±0.1 degrees Baume or ±0.001g/ml. Precision replenishment keeps the density constant and permits the etching process to be optimized, increasing speed, reducing undercut, and eliminating rework. Excellent for fine line etching.
  2. The Model 122 provides digital TTL level information about the etching process to the user's process PLC via 11-conductor cable. Available signals include: replenisher pumps(s) on/off, high and low limit, and solution density as read by the hydrometer float in 0.1 degrees Baume (0.001g/ml) steps up to ±1.9 degrees Baume (±0.019g/ml) from the set point. This set point is determined by a mechanical balance beam system and therefore is not subject to software glitches that could cause loss of calibration.
  3. Depending on the PLC available, various types of data display modes can be generated by writing the appropriate code. Listed below are three suggested data display modes.

    Minimal Display Mode Standard Display Mode Advanced Display Mode
      • Pump On/Off Indicator 
      • High Density Indicator
      • Low Density Indicator
      • Auto/Manual Mode Indicator
      • Alarm
      • Alarm Cancel 
      • All features of Minimal Display, plus: 
      • Digital Density Display
      • Over-range/Under-range Indicator
      • All features of Standard Display, plus: 
      • Deviation from set point
      • Diagnostic statements
      • Process Data Collection 

    For complete information on installation requirements and system operation, please read the Application Notes.
    (Adobe Acrobat Reader is required to view the Application Notes document.)

Materials Compatibility

    AVAILABLE SPARE PARTS FOR MODEL 122:

    Cat. # Description Price
    122-C Mod. 122 Etchant Controller (w/o electronics)  $560
    122FLT Mod. 122 Replacement Float Kit  $75
    122EOC Encoder Optical Card for 120-11 $25
    120-11 Encoder Circuit Board (with cable) $410
    Length (feet)



    NOTE:
    • When ordering 120-11 circuit, specify cable length in feet.


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