Caltech Engineering Services India is a leading manufacturer
for cathodic disbonding tester. CD Tester or cathodic
disbonding tester is designed to test and accurately determine the characteristics of insulating coating systems
applied over steel material.
Purpose of coating
system is to prevent corrosion that could occur in the
underground pipeline services. Importance of coating
inspection is therefore highly important. Underground pipes
are coated and cathodically protected. Applied cathodic protection potentials may cause loosening of the coating, beginning at holiday edges. Spontaneous holidays may also be caused by such potentials.
Test method provides accelerated conditions for cathodic disbondment to occur and provides a measure of resistance of coatings to this type of action.
Cathodic disbondment tester is used in civil engineering for
evaluation of epoxy coated rebars to evaluate effect of
cathodic protection on epoxy-coated rebar.
CD Tester -
Cathodic Disbonding tester is one of the useful instrument
to test and determine accelerated corrosion testing. Cathodic disbondment
tester is manufactured with latest microprocessor
based technology with multi channel based on potentiostat operations. The instrument is highly user friendly and
can be operated by technicians without any factory training.
Cathodic Disbondment instrument has connections made easy with plug and play devices. Full
details of installation and operations are given in user
manual.
In electrochemical process, A potentiostat is a controlled and measured device in an electrolytic cell, keeps the potential of the working electrode at a constant level with respect to the reference electrode. It consists of an electric circuit which controls the potential across the cell by sensing changes in its resistance, varying accordingly the current supplied to the system: a higher resistance will result in a decreased current, while a lower resistance will result in an increased current, in order to keep the voltage constant.
CD Tester meets or
exceeds the requirement of ASTM G8- Test methods for
cathodic disbonding of pipeline coatings, ASTM G42- Standard
test method for cathodic disbonding of pipeline coatings
subjected to elevated temperatures, ASTM G95- Test method
for cathodic disbondment test of pipeline coatings using
cell method, DIN 30671 and
EN 12068 standard, ISO 15711- Determination of resistance to
cathodic disbonding of coatings exposed to sea water.
Few
highlights
- User can select potentiostat channel by using soft press key pad to see display of voltage, current and elapsed test time..
- User has two options to choose model CD-205 and CD-2055
- User has option of adjustable knob for precision control of voltage.
- CD tester with 0-2500mV ±0.2% with current range of 2.5mA or 25mA
- CD Tester with 0-4000mV ± 0.2% with current range of 25mA or 250mA is also available
- Complete instrument is provided is required accessories.
- 2 acrylic glass test cups
- 2 set of reference electrodes
- 1 set connection cable
- Power supply 230 V/50 Hz
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