Fig. 17.20 Inductive contact pressure gauges

Applications and features

• metrology-wise as type series Fig. 17
• For direct pressure indication at the measuring point and simultaneous switching of circuits for system control
• The switching point can be adjusted in the centre of the viewing glass across the entire measuring range (280°C). If the pressure reaches the set limit, the contacts switch.
• Energy supply required
• Precise switching point, 0.5% of end scale value
• The breaking capacity depends on the circuit amplifier used. The non-contact proximity switches in the measuring decive switch the circuit amplifier using the auxiliary energy of the power supply.
• Can be used with glycerine filling or other damping fluids
• Up to 4 switch contacts with NS 100 or NS 160, up to 2 switch contacts with NS 63
• 3 switching functions selectable: clockwise, closing with increasing pressure (closing contact), opening (opening contact), switching (alternation).
• A solid front between measurement system and scale range prevents measuring media from escaping through the viewing glass e.g. following overload and has it escape through a pressure relief opening at the back instead
• Available options are triangular front ring with bracket attachment, 3-hole front flange or attachment rim at the back
• If Ex-certified buffer stages are used, suitable for potentially explosive atmospheres