Combination Switch

The SCTSD-L combination switch was designed to meet the requirements of hydraulic facility construction. It combines the functions of a fixed mechanical level switch with an adjustable temperature switch with display.

Level
The tank level is measured using a highly dynamic, fully encapsulated magnetic float which switches the bi-stable reed contacts. The M12 pin assignments are compatible with conventional existing systems. The level contacts are pre determined according to the normal tank sizes. There are two standard switch output versions available:
• Warning minimum level and shutdown minimum level
• Shutdown maximum and minimum levels

The switching positions were chosen according to the proven experiences of plant constructors and the DIN. For safety reasons (fail-safe / closed circuit), the switching behaviour of the standard switch is an NC contact.

Optionally the contacts can be changed at the factory and pre set in line with the customer’s requirements.

Temperature
The temperature is detected using a sensor; it is then evaluated and constantly displayed using the SCTSD TemperatureController. Thanks to the easy switching functions (e.g. switching windows), intelligent switching settings can be achieved that are not possible using a mechanical temperature switch. Normally the outputs for the normal temperature functions cooling on/off and shutdown are pre-installed as standard. The temperature thresholds were designed for standard oils (HLP). It is possible to adjust the temperature monitoring temperature limits (e.g. cooling and shutdown) for each output individually using the keys:
• On/off switching temperature limits
• NO/NC contact
• Hysteresis / window function
• Time delay and attenuation

Optional (see: SCTSD-L-….-KIT5 ) 3 different versions of temperature switching outputs are available:
• 2 switching outputs
• 1 switching and 1 analogue output
• 2 switching outputs and one analogue output

Features / Advantages:
• Compact design
• Temperature display
• Individually adjustable temperature switching outputs
• Small switching hysteresis
• Preset
• For standard oils
• For cooling
• For switching off (Tmax)
• Fixed level contacts
• Only one float
• Preset level Warning and shutdown min.
• Shut-down min./max.
• Up to one meter probe length

Markets:
• Industrial

Applications:
• Hydraulic facility construction