CYCLIC 608 - Senze-Instruments

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Process & Quality Control

CYCLIC 608

Coatings & Industry > Corrosion + Ageing > Cyclic & Multifunction Cabinet
Corrosion Testing Apparatus, Model 608-1

Cyclic Tests - Varying Climatic - Conditions - Automotive Standards

The Corrosion Testing Apparatus, Model 608-1 consists of a control cabinet and one test chamber (optional order)

The control cabinet is equipped with SIEMENS Touch Screen for setting the test parameters and preset of the test sequenzes in accordance with VDA and VW specifications as well as in accordance with DIN EN ISO 6270-2 AHT (further test sequences upon request).
An additional channel is available for the individual programming of a cyclic corrosion test. The control and adjustment of the test cycles are realised using a SIEMENS S7-200 PLC.


Standards
•P-VW 1210
•VDA 621-415
•DIN EN ISO 6270-2
•DIN EN ISO 9227
•ASTM B 117

The Corrosion Testing Apparatus, Model 608-1 is equipped with:
  • pneumatic dome opening,
  • one dosing pump for optimum setting for the salt solution to be sprayed,
  • an integrated 200 l solution reservoir and
  • one circulation pump.
Further scope of supply:
  • 3 specimen holders
  • 2 condensate receptacles
ERICHSEN Corrosion Test Instrument for
varying climatic conditions, Model 608

Designed like the manually operated Model 606, the Corrosion Test Apparatus, Model 608, however, is equipped with a PLC (programme logic control) SIEMENS D7 200.
The test cycles as well as the test parameters are entered using the SIMATIC touch screen.
Cyclic corrosion tests executed e.g. in accordance with the specification of VDA, VW or SWAAT, can be started in a user-friendly manner.
There is the possibility available for the input of a customised test cycle. Upon request, special tests can be considered for the selection of the test cycles.
After placing the specimens and the condensation receptacles in the test chamber and programming the desired number of test cycles the test takes place fully automatically.

A circulation pump for mixing the salt solution in the storage tank is permanently installed in the lower part of the control unit.
The Models 608/400 l and 608/1000 l are available either in rotational symmetric or rectangular shape, whereas the version 608/2000 l can only be supplied as a rectangular apparatus.
Purpose and application
Ferrous and non-ferrous metals are attacked continuously by humidity, acids, solutions, gases etc.
It is therefore vitally important to choose the correct surface protection. There are many materials and qualities on the market and their properties must be properly assessed. Materials intended to prevent corrosion must be tested if failures are to be avoided.
Furthermore the comparative quality control during production is of increasing importance.
The best known processes employ spray vapour tests using various salt solutions as well as condensation water climates.

Test principle
Aggressive solutions are turned into a vapour mist in accordance with the tests that are listed below.
These vapours surround the specimens in the test chamber either continuously or in a cyclic manner.
The corrosion resistance of the individual specimens is established on the basis of the difference in time before the first corrosive effects become apparent.
Design

The ERICHSEN Corrosion Testing Instruments, Models 606 and 608, take full advantage of our wide experience in the construction of all kinds of testing equipment as well as of the information and world wide feedback received from users.
Made of impact resistant, eco-friendly polypropylene material each instrument forms a closed unit.
It consists of a test chamber, available either of 400 l, 1000 l or 2000 l capacity, and a control unit.
The control unit is equipped with a storage tank for the spray solution, the necessary control instruments for the temperature sensor, air humidifier, spray pressure and the test duration .
The test chambers of the standard version (400 l or 1000 l capacity) are designed with rotational symmetry.
This layout provides even distribution of the salt solution vapour over the entire test zone. The top of the test chamber dome is pneumatically opened and closed so that both hands can be used to lodge the specimens.

A dosing pump serves for an infinitely variable adjustment to achieve optimum consumption of spray solution.
The large storage tank for approx. 200 l salt solution allows continuous testing without attention over a period of up to a week.
All instruments may be equipped with a second test chamber.
The scope of supply of each test chamber includes three specimen holders for weathering panels.
When tests are required on larger working parts, it is often not possible to employ a test chamber of rotational symmetry. For this reason, as an alternative, rectangular test chambers with a capacity of up to 2000 l (special dimensions upon request) can be supplied.
Corrosion testing instrument for varying climatic conditions Model 608/2000 International Standards
Technical Data
Corrosion Test Instruments, Models 608          400 l                  1000 l                 2000 l
Capacity of the test chamber / test panels      approx. 100       approx. 180    approx. 400
(depending on the shape)
Specimen holders for weathering panels                  3                      3                       3
(18 panels / holder)
Floor load of the test chamber            up to approx. 300 kg (special versions on request)
Test temperature range                                 from ambient temperature up to +50 °C

Following connections have to be provided by the user::
Power supply (AC)                                230 V / 400 V, 50 Hz (other voltages on request)
Consumption                                    approx. 2000VA  approx. 3000VA  approx 4000VA
Compressed air connection / pressure                                    4 - 10 bar
Air consumption                                                                    6 Nm³ /h
Water connection / pressure                                                  2 - 8 bar
Different chambers are available :
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