TECHNICAL FEATURES AND REGULATIONS CAL - Reading multi-turn regulation By the multi-turn trimmer CAL on the back side, it is possible to modify the reading for displaying the required value proportional to the input pulses frequency. DIP-SWITCH 1÷6: (on the back) The device is programmable by pulling downwards the dip switches 1÷6 for the ranges listed in TAB A. The 100% of the input frequency corresponds to the full scale of the range. Example: the range fixed by the dipswitch n. 2 has the full scale 48000 PULSES/min. The range fixed by the dip-switches n°1 + n°2 has the full scale 36000 Pulses/min etc. DECIMAL POINT For the three most significant digits, the decimal point is set by pulling upwards the front dip switch on the left side. The front panel is removed by a small screwdriver (fig.1). DUMMY ZERO They are selected by pulling upwards the dip switch on the front, right side. MODE OF OPERATION The device counts the number of pulses, and not the number of the shaft revolutions REMARK: PULSES/MIN = RPM x NUMBER OF PULSES/REVOLUTION. The number of the pulses per revolution depends on the number of the holes on a disk or a wheel applied to the shaft. The frequency of the pulses is measured in Hz (pulses per sec) and the PULSES per min are = Hz x 60. Ex.: 100 Hz correspond to 6000 PULSES/MIN. REMARK 1 In presence of low speeds, and specially when the pulses/min are not many (less than 300 pulses/min), the reading is not constant. SETTING Select one of the ranges of TAB A by the dip-switch 1÷6 and turn the machine up to the requested speed. For modifying the reading, operate the regulation CAL. The device displays 000(00) as long as the input frequency is not higher than 1/50 of the selected full scale. The out of range of the display is indicated with 3 zeros flashing. REMARK 2 By cal it is possible to display the maximum value 999 when the application goes from 50% to 100% of each range (fig.4). If the application is lower than 50% of the selected range, it is necessary to activate the lower range and check that the application goes above 50%, or in alternative it is necessary to increase the number of the pulses. INSTALLATION and WIRING DIAGRAMS Screw connections on the front to be made as per 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: by screw terminals WORKING TEMPERATURE: 0÷60°C INITIAL WARM UP: 2 minutes STORAGE TEMPERATURE: -20÷+ 80°C CASE: in self-extinguishing ABS DIMENSIONS: 48x96x101 mm (DIN 43700) Flush mounting - on request M 13A Plexiglas protection for tight closure (for flush mounting). TEMPLATE: 45x92 mm SUPPLY 2VA 50-60 Hz Tolerance: ± 10% 1-2 24 Vac, 115 Vac or 230 Vac WEIGHT: kg 0,300 COLOUR: black

The T 11 replaces the E 419N and it is compatible pin to pin with E 419N. FUNCTION The device receives a train of pulses from a sensor (mechanic, optical, inductive, amplified, not amplified, NPN, PNP, NAMUR, etc) and converts it into a voltage, proportional to the frequency of the pulses, which is displayed by the device. USE T 11 displays the speed of a shaft or another value proportional to the actual speed.

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