STAPERM™ Model CU-4-PT (Pointed Plug)

The STAPERM™ CU-4-PT is a portable, gel-filled copper/copper sulfate reference electrode with a choice of round or pointed ceramic plug. The pre-calibrated gel eliminates the need to mix copper sulfate crystals before use.

Technology and construction

A porous ceramic contact plug couples the reference electrolyte to the test surface. The portable housing and threaded connection stud provide a convenient arrangement for moving between measurement locations with a field meter.

Key advantages

• Pre-calibrated gel: The supplied gel eliminates mixing copper sulfate crystals before initial use.
• Choice of contact tip: Select a round or pointed ceramic plug to suit your field setup.
• Serviceable construction: The portable series uses a rechargeable design for continued field use.
• Ceramic contact plug: Provides the contact interface for repeatable positioning at measurement locations.
• Field-ready housing: High-impact ABS protects the assembly during routine handling, with color coding to identify the chemistry.
• Chloride-ion trap: Helps protect the reference electrolyte from chloride contamination.

Applications

Routine cathodic protection field checks, structure-to-electrolyte potential measurements and survey work where the selected reference chemistry is appropriate.

Technical specifications

• Refillable high-impact ABS housing.
• Dimensions: 1 in. diameter × 8 in. long.
• Connection stud: 1/4 in.-20 copper.
• Contact plug: round or pointed ceramic, selected above.
• Stability: ±5 mV with a 3.0 µA load.
• Operating temperature: 32°F to 135°F (0°C to 57.2°C).

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