Digital temperature controller HT 55

programmableIP40configurable

Thanks to its free configurability, the HT 55 is a universal controller in machine, system and apparatus applications. In the design of this device, particular attention was paid to making its handling simple and comprehensible. Mounting on standard rails and the removable terminals (plug-in blocks) guarantee use even under difficult installation conditions in the switchgear cabinet. Voltage supply - 230 Volt AC / 50 Hz or 24 Volt DC 115 Volt AC / 50 – 60 Hz optional Sensor types - Fe-CuNi (J), NiCr-Ni (K) PT100 NI-120, sensor breakage protection, sensor polarity control, short-circuit monitoring Tolerance - 1 % of the relative temperature Actual/target value display - 3-digit LED display (13 mm) scan operation between channel 1 and 2 Controller output A - via 2 internal triacs max. power 1200 W for both channels together Controller output B - via two mechan. changeover relays, switching power 2 x 1500 W at 230 V AC Controller output C - 2 x 12 V DC to control a solid state relay to switch higher powers Configuration - as dual controller, each channel is configured as a controller / limiter each channel monitors the other Optional - two independent 4 – 20 mA inputs for external setting of setpoint Protection type - IP40 (EN 60529), protection class I Controller dimensions - 72 x 70 x 90 mm (H x W x D) Connections - pluggable connection terminals Operation - parameter assignment and configuration using keypad