Model DIP-1 Corrosion Sensor by Tinker & Rasor is an Electrical Resistance (ER) corrosion sensor designed specifically for ductile iron installations. The probe is made of ductile iron with the annealing oxide layer intact for accurate MPY loss rates.

Model CSP-1 Corrosion Sensor by Tinker & Rasor is designed for carbon steel installations.

Both models measure cumulative corrosion and calculate the in-situ corrosion rates. The sensor has a very low 0.1875” (4.76 mm) profile ) and will lay below a polyethylene encasement without interference.

Features

• Model DIP-1: ductile Iron element with annealing oxide intact.
• Model CSP-1: carbon steel element (illustrated to right).
• Works with or without CP applied.
• Low-profile facilities under polyethylene encasement installation.
• Compatible with standard ER instruments.
• 25-foot (7.6 m) cable with weatherproof 6-pin connector.
• Pigtail-lead for connection to CP.

Construction

• Element made from ductile iron pipe or carbon steel for accurate corrosion loss readings.
• Built for harsh underground environments.
• Measurement span: Nominal 25 mils (0.63 mm)
• Measurement element area: 1 in² (6.5 cm²)
• Cable connections sealed from environment with only the measurement element exposed.
• Mil-spec, weatherproof 6-pin connector.
• 10-foot, low-profile ribbon cable (3 m) to end of PE wrap, then 15-foot (4.5 m) round leads to test station.
• Probe dimensions: 6.00” L x 1.00” W x 0.185” H (154 x 26.8 x 3.8 mm)
• Compatible with standard all ER probe instrumentation, i.e., Rohrback Cosasco Systems Checkmate™, Ck3 or Ck4, Metal Samples MS0500 and MS1500E, or others.
• The Tinker & Rasor Model T-3 CP Test Station (shown above) is recommended as the access point for Models DIP-1 or CSP-1.

Applications

• Use on any buried ductile iron or carbon steel installation with or without CP.
• Benchmark soil corrosivity and native soil corrosion.
• Install and measure under Polyethylene Encasement (PE: AWWA C105 Appendix A)