Aqueous Resistive Load

The Aqueous Resistive Load that is used in the Pulser is a water-copper sulfate solution which is contained in a polycarbonate tube that is capped on each end with copper end caps. The Resistive Load is designed to produce a 380 ohm resistance.

If you need to clean or change the solution in the Aqueous resistive load:

• Disassemble the Aqueous Resistive Load.
• Scrub the parts with a brush in a mild soap solution.
• Use hot water to remove any chemical deposits.
• Hot nitric acid may be used for cleaning the Copper Caps if necessary.
• Rinse all of the parts in water then rinse them twice in distilled water. (Don't use Alcohol.)
• Let the parts dry.
• Assemble the Load Resistor. Do Not touch the inside parts or the Copper End Caps.
• Check the Load Resistor for leaks:
  • Apply 2-3 pounds compressed air pressure at the fill plug hole.
  • submerge it in water
• Fill the Load Resistor with Electrolytic Solution:
  • Prepare the copper sulfate solution and let it stabilize to the estimated Pulser ambient temperature.
  • Fill the Load Resistor with distilled water and copper sulfate.
  • Shake well.
  • Check to see if the copper sulfate crystals are dissolved.
• Measure the resistance using the circuit below:
• Adjust the resistance:
  • If the Resistance is low; add water.
  • If the Resistance is high; add copper sulfate.
• Seal the Resistive load, leaving a 1/4 inch air bubble in the chamber.

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