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          LED Timer

          RT series

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          AC type

          Operation method

          Addition, subtraction, addition and subtraction

          Operation mode

          On-delay 1, On-delay 2, Power-on delay, Off-delay, fl icker (repeat cycle), interval, and total

          Return method

          Power reset, external reset, manual reset, automatic reset (excluding on delay 1, power on delay, and integration modes)

          Display power

          7-segment LED (character height: 12 mm)

          Number of digits


          Time range

          0.001 s to 9.999 s, 0.01 s to 99.99 s, 0.1 s to 999.9 s, 1 s to 9999 s, 1 s to 99 m 59 s,
          0.1 m to 999.9 m, 1 m to 9999 m, 1 m to 99 h 59 m, 0.1 h to 999.9 h, 1 h to 9999 h

          Power off memory time

          Service life: approx. 10 years at 20°C

          Mounting method

          Flush (panel) mounting, DIN-rail mounting, surface mounting*1

          Timer accuracy

          ±0.01% of F.S., ±1 digit of preset time

          External calibration input signal

          Response time

          1 ms/20 ms (selectable)


          Non-voltage input (contact, solid-state) (count and reset input)

          Power supply reset

          Minimum power-off time: 500 ms

          One-shot time

          0.01 s to 1 s (trimmer variable)


          Contact: SPDT, 250 VAC, 3A (resistive load)
          Solid-state output: NPN open-collector 100 mA max. (40 V max.)

          DC output

          12 VDC ±10%, 50 mA max.


          Power voltage

          100 to 240 VAC ±10 %, 50/60 Hz

          Power consumption

          9VA or less

          Environmental resistance

          Insulation resistance

          100 MΩ min. with 500 VDC megger (across terminals and housing)

          Noise resistance

          Square-wave noise from noise simulator: 2 kV, 1 µs (across power terminals)

          Environmental resistance

          Ambient temperature

          -10 to +50 °C (No freezing)

          Relative humidity

          35 to 85 % RH (No condensation)

          Withstand voltage

          1,000 VAC, for 1 min. (across power terminals and contact)

          Vibration resistance

          10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions

          Shock resistance

          100 m/s2, 3 times in each of the X, Y, and Z directions


          Approx. 170 g

          *1 To mount the timer unit on a panel or DIN rail, use the optional mounting attachment (OP-91867).

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