- By implementing magnetic switches a Visual Level Indicator can also be used as level switch. The requested switch point is adjustable depending on changing process conditions by simply moving the switch in to the corresponding position. Change-over or On/Off configurations are available for standard-, EEx i- or EEx d-environments. Switch ratings are 230V/1A/60VA/60W respectively 250V/1.3A/80VA/80W. Media temperature up to 350°C.
- Weka VLI level indicators are available with magnetic switches installed at the rear of the float chamber, actuated by the rear field of the bar magnet in the float. These switches add level detection functions to VLI indicators.
- The switches may be connected directly to inputs of PLCs or computer-based systems, or through contactors for control of valves or pumps.
- The magnetic switches are bi-stable: each is latched in one state (open or closed) on the first pass of the float’s bar magnet, and re-set to the original state on the second pass.
- The magnetic switches are available as on-off (SPST) or changeover (SPDT) types.
- Their stainless steel housings allow them to be used in practically any type of environment, and with media temperatures up to +350°C.
- The number of switching points is limited only by the availability of space.
- Magnetic switch modules are available for use in highly combustible atmospheres: either as intrinsically safe (EEx i) versions or with pressure-tight explosion-proof (EEx d) housings that conform to the European Directive 94/9/EG (ATEX).
All you need to run your factory !
