TECHNICAL FEATURES AND REGULATIONS SP1 (triggering set point) The set point 1 is regulated by the multiturn trimmer SP1 on the front and it is displayed by turning the switch CO in position SP1. SP2 (reset set point) The set point 2 is regulated by the trimmer SP2 on the front and it is displayed by turning the switch CO in position SP2. SP2 must be lower than SP1. If by mistake SP2 is set at a value higher than SP1, the led E starts blinking. CO When CO is in position T, the actual temperature value is displayed. In the positions SP1 and SP2, the correspondent set points are displayed. VISUALIZATIONS Display with red leds for the tempera- ture (T) and the set points. LED A: it lights on when T overcomes SP1 and it lights off when T returns below SP2. LED E: it blinks when SP2 is higher than SP1 (wrong condition). OVERFLOW (or broken sensor): Display : OFF, Led A and B are ON. DISPLAY: 3 digits, 7 segments height 12,5 mm “high efficiency” THERMAL DRIFT: 50 ppM/°C ACCURACY: ±1% (fs), ± digit MODE OF OPERATION See fig. 1. SETTING See explanations under TECHNICAL FEATURES AND REGULATIONS. INSTALLATION AND WIRING DIAGRAMS Wirings according to fig. 2. (Wiring to an electrical board with a differential relay and a sectionalizing switch). The length of every wiring must be less than 30m. CONNECTIONS screw terminals for cables up to 1,5 mm2 SUPPLY: 3VA - 50-60Hz - Tolerance: ±10% pin 4-5: 230 Vac or 115 Vac or 24 Vac INSULATION The galvanic separation is given by the supply transformer. CASE: self-extinguishing ABS. INSTALLATION: flush mounted. SIZE: 72x72x100 mm (DIN 43700) on request M 13B Transparent cover fitted for tight closure TEMPLATE: 67x67 mm WORKING TEMPERATURE: 0÷70°C INITIAL WARM UP: 2 minutes WEIGHT: kg 0,300 COLOUR: black

FUNCTION The device is an ON-OFF thermoregulator with two separate set points (Fig.1). USE The device, with an external Pt 100 sensor, controls the temperature, operating the relay.

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