84 Operating Instructions | SICK
Operating Instructions PAC50
8017612/ZAB1/2017-02-14 | PAC50
Subject to change without notice
10 Device maintenance and cleaning
Figure 1: Minimum permissible period T with maximum pressure uctuations Δp ............................................................ Page 51
Figure 2: Hysteresis function in the event of excess pressure ............................................................................................. Page 53
Figure 3: Hysteresis function in the event of underpressure ................................................................................................ Page 54
Figure 4: Window function ....................................................................................................................................................... Page 54
Figure 5: Delay times ............................................................................................................................................................... Page 55
Figure 6: Display areas ............................................................................................................................................................ Page 57
Figure 7: Installation on the mounting rail ............................................................................................................................. Page 59
12Listofguresandtables
10 Device maintenance and cleaning
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The device is maintenance-free
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Before cleaning, separate the pressure switch from the pressure supply and the voltage supply in the
normal way
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Use only a slightly damp cloth for cleaning (water and soap solution)
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Do not allow electrical connections to come into contact with liquids
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Do not use any aggressive cleaning agents such as industrial alcohol, benzine, diluting agents, etc.
11 Returns
When returning the device, it is crucial to note the following:
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All devices delivered to SICK must be free from hazardous substances (acids, lyes, solutions, etc.)
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The device must be returned in its original packaging or packaging that is suitable for transport purposes
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A signed and completed non-risk declaration form must be included with the device
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The non-risk declaration form can be found at www.sick.de