Safety Immersion Heaters ROTKAPPE® with Anti-Burn System ROTKAPPE safety immersion heaters with Anti-Burn System minimise possible thermal damage to plants and tanks in the event of partial or complete loss of the liquid being heated. The following „critical“ situations in liquid solutions up to 100°C can be avoided by using a safety immersion heater with Anti-Burn System: • Continuous operation of the heater with low fluid levels (due, for example, to evaporation of the fluid) • Continuous operation of the heater when the transfer of heat from the heated immersion tube to the fluid is restricted (by, for example, heavy incrustation on the immersion tube) ROTKAPPE safety immersion heaters with Anti-Burn System can be installed either vertically or horizontally in tanks and other plants. This flexibility simplifies the planning and installation of electrical immersion heaters to meet a wide range of requirements for such applications. Please note that it is still necessary to install the normal overheating and dry-running protection devices in plants and tanks with electrical heating systems, even when using ROTKAPPE immersion heaters with Anti-Burn System. The optimum solution to this can be found in our product range of float switches, conductive level probes and the related electronic controllers. We will gladly advise you in the solution of your safety problems. The integrated Anti-Burn System reacts to unpermissibly high immer-sion tube temperatures and switches off the heater. The heater remains off until the safety circuit is reset manually. This can be done only if the other safety devices are operating correctly and the tank and the heater are in good condition. The integrated Anti-Burn System is tripped if the immersion tube temperature becomes too high and switches off the heater with the aid of our differential current monitor DSW 3/2 and a power relay. The heater then remains switched off until the safety circuits in the immersion heater and on the differential current monitor are reset manually. A prerequisite for this is that all other safety devices are functioning correctly and that the tank and the heater are in good condition. The Anti-Burn System can be installed in all threephase immersion heaters with rated voltages of up to 400 V and a current consumption of 1,8 to 16 A. • Continuous operation of the heater with no fluid (due, for example, to a sudden, unexpected loss

Safety Immersion Heaters ROTKAPPE® with Anti-Burn System The differential current monitor DSW 3/2 monitors the currents in the individual phases (L1, L2, L3) of a three-phase mains supply. When the limit value set for power consumption imbalance is exceeded, the power contactor is switched off via the relay contact. The limit value recommended for power consumption imbalance is 5.0 %. Power relay The effective process parameters (e.g. Phase current) are indicated on the display. If values exceed or fall below the set limits, the contact switches and the display shows the respective error message....