Jumo 00564208 Temperature limiter
The configurable safety temperature limiter/monitor according to DIN EN 14597 with 1oo2D architecture and SIL and PL approval is equipped with two universal analog inputs and two relay outputs (pre and limit alarm) as well as a universal analog output. The breaking capacity of the relay contacts is 250 V AC, 3 A, 50 Hz (ohmic load). The pre-alarm can be set absolutely or as a distance from the limit value. The front side impresses through the brilliant LC-display with background lighting and clear text display. The use of the Safety Temperature Limiter (STB) and Safety Temperature Monitor (STW) enables the early and safe detection and control of hazards that can lead to injury to people, damage to the environment or the destruction of production equipment and production equipment. The primary task is to reliably monitor heat-related processes and to put the equipment in a safe state in the event of a fault. The measured value at the analogue input can be recorded by different sensors or unit signals. If a limit value is exceeded, the integrated LEDs signal for each channel and the relay output ALARM switches the system to an operationally safe state (alarm range). The high requirements of the DIN EN 61508 or DIN EN 13849 are fulfilled by a device concept whose 1oo2D structure ensures the safe detection of errors and can therefore also be used in applications subject to the new machine directive 2006/42/EG. When used as safety temperature monitor STW (protection-temperature-monitor) the device works with automatic reset (e.g. for heat-generating systems). This takes place after the sensor temperature has fallen by the amount of the switching difference below the set limit value (setting: Max alarm). The automatic resetting is done when setting the min.-alarm, after the sensor temperature has increased by the amount of the switching difference over the set limit value. When used as safety temperature limiter STB (protection temperature limiter for heat-generating equipment), the reset is performed manually or with a tool. The voltage supply range extends from AC/DC 20 to 30 V, 48 to 63 Hz.This text is machine translated.
