SCPC: Determination of the Cathodic Protection
SCPC provides in situ the value of current density necessary to protect an immerged metallic structure.
It allows to determine the characteristics of the cathodic protection needed : size, number of sacrificial anodes, power supply.
Current density depends on the environmental parameters (dissolved oxygen, marine currents, temperature) which influence electrochemical reactions on the surface of the structure to protect.
The originality of SCPC lays in the fact that the instrument housing is made of tested alloy. The system is compact and has no external wire, with built-in miniature data logger and batteries.
Datasheet
Features and benefits
SCPC provides in situ the value of current density necessary to protect an immerged metallic structure.
It allows to determine the characteristics of the cathodic protection needed: size, number of sacrificial anodes, power supply.
Current density depends on the environmental parameters (dissolved oxygen, marine currents, temperature) which influence electrochemical reactions on the surface of the structure to protect.
The originality of SCPC lies in the fact that the instrument housing is made of the tested alloy.
Easy to deploy:
Light and ccompact, no external wire
Fast wireless configuration and data collection thanks to a communication interface (Inductive Data Pencil) connected to the USB port of a PC using Winmemo software.
The system consists of:
a zinc reference elctrode
a sacrificial anode
a cathode (the metal to be protected)
SCPC is available with 2 different standard housings: steel and stainless steel.
Examples of use
In situ assessment of marine structures cathodic protection need in deep sea or habour
Sensors
Voltage
Current
Technical data
Voltage:
Range: ± 1V
Resolution: <1mV
Accuracy (linearity, hysteresis, repeatability): <10mV
Input impedance of the measurement stage: >10E11Ω
Current:
Range: 30 µA to 10 mA
Resolution: < 3 µA
Accuracy (linearity, hysteresis, repeatability): < 50µA
Input impedance of the measurement stage: > 10E11Ω
Electronic board: equipped with a microprocessor and a quartz clock
Sampling rate: programmable from 0.01 second to 99 hours
Autonomy:
Memory: > 3 years recording at 1 hour
Energy: 3 replaceable Lithium batteries
Mechanical features:
Max. operating rate: 300 bars
Operating temperature: 0 to +30°C
Dimensions: housing Ø40 x 274 mm
Weight in air: 950 gr
