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
- 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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