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All posts by Enrico Bossart

How does one specify the switch point of a float switch?

02/02/2018 | Enrico Bossart | Level
Switch points of a float switch

In the specification of the switch points of a float switch, misunderstandings always lead to unsuitable product designs. How one correctly specifies the switch point of a float switch will be explained here. The basic prerequisite for the correct specification …

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Float switch: What is it and how does it actually work?

11/15/2017 | Enrico Bossart | Level
Schwimmerschalter

Float switches are simple, universally applicable and exceptionally reliable. It is not a coincidence that, today, float switches still represent the most frequently used principle for level monitoring. But how does a float switch actually work? Float switches, in …

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What is meant by the “change-over” switching function with pressure switches?

08/16/2016 | Enrico Bossart | Know-how
Change-over switching function

A pressure switch with the “change-over” switching function represents a special version of a pressure switch with two switching outputs acting oppositely to switch two circuits. A “change-over” closes one circuit and simultaneously opens a second circuit. Thus …

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What is meant by the “normally open” switching function with pressure switches?

05/24/2015 | Enrico Bossart | Know-how

Pressure switches (for example, a “normally open contact”), are often used for the monitoring and control of safety functions in order to signal any over or underpressure, and thus to prevent any damage to the machinery or the system. Switches with the “normally …

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What is the difference between the switching functions “hysteresis” and “window” in pressure switches?

05/12/2015 | Enrico Bossart | Know-how
switching-function-hysteresis-window

Electronic and mechanical switches are used for monitoring critical limit values and therefore usually fulfil a safety function. To meet this safety function, switches offer two alternative switching functions, the “hysteresis” and the “window” functions. In …

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Welcome to the WIKA blog

In our English-language blog you can expect many interesting articles on pressure, temperature, level and flow measurement, and also on the subject of calibration technology. Furthermore, there are various insights into the world of the WIKA group of companies – seen from different angles.

Most-read articles
  • Float switch: What is it and how does it actually work?
  • How does one specify the switch point of a float switch?
Accuracy Electrical connection Ex protection Hydrostatic Hydrostatic level measurement International Measuring principles Measuring range Pressure gauge Pressure sensor Pressure switch Standards / approvals Switching function Temperature Type of pressure
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