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Temposonics
®
MH Series
Installation Manual
5. Cylinder handling after sensor installation
5.1 Washing and drying cylinders with installed sensors
Frequently, hydraulic cylinders are washed or degreased before painting. For this purpose, various chemical and/or thermal methods are used,
whereby cleaning agents are sprayed onto the components under high pressure up to 50 bar. During this procedure, the following measures relat-
ing to polyurethane (PUR) connecting cables and plug-in connections must be taken.
5.1.1 Sensors with Temposonics
®
M12 connector system
• When washing at low pressures up to approx. 5 bar, the plastic cap supplied with sensor and connector system is sufficient to
protect the M12 connector system (MTS material number GZ0605).
• When washing at higher pressures, an M12x1 metal protective device should be used to protect the connector system against
the effect of chemicals.
• The actual MTS connector system won‘t be damaged due to its high protection class, however, mating plugs which are con
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nected subsequently might corrode due to the effect of chemicals.
• If temperatures higher than 105° C are used for drying after washing, the connector systems should not be exposed to this
temperature during more than about 5 minutes.
5.1.2 Sensors with connecting cable
• Protect the connecting cables using suitable enclosures (e.g. bags) against the effect of moisture, high pressures and tempera
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tures.
• Normally, cable entry glands meet the requirements of IP 67, however, they are not pressure-tight. For this reason, they must
be protected against moisture as well, in order to prevent moisture from accumulating in the connecting compartment of the
cylinder.
• MTS connecting cables are made of PUR and relatively resistant against a large variety of chemicals and oils. However, excep
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tions are e.g. carbon tetrachloride, trichloroethylene, perchloroethylene, which can be ingredients of fat solvents and cleaning
agents.
• Therefore, make sure that cables are protected adequately, if cleaning agents that can attack PUR are used.
• If temperatures higher than 105° C are used for drying after washing, the connecting cables shouldn‘t be exposed to this tem
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perature during more than 5 minutes.
5.1.3 Sensors provided with third-party connectors
• If third-party connectors are used, a sealed screw cap must be fitted when washing, since third-party connectors normally have
only protection class IP67.
• Moreover, check if the housing of the third-party connector is sufficiently tight to resist high pressures when washing. If neces
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sary, measures for protection of the housing should be taken.
• These connectors must be protected against the ingress of moisture as well to prevent moisture from accumulating in the con
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necting compartment of the cylinder.
• If temperatures higher than 105˚C are used for drying after washing, third-party connectors shouldn‘t be exposed to this tem
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perature during more than 5 minutes either.
IP69 K
IP67
IP67
Содержание Temposonics MH Series
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