Microcontroller-based Timers/Counters/Stop Watch

Libratherm Instruments Pvt Ltd (Manufacturer)
Microcontroller-based Timers/Counters/Stop Watch

Model ID

  • DTR-721/ DCT-721/LSW-72

Product Categories

Product Profile

Libratherm offers Microcontroller-based Timers, Counters and Stop Watch, models DTR-721, DCT-721 and LSW-72. Timers are available in the range of 0 – 9999 time count. These timers have 4-digit 0.5” 7-segment red LED upper display for actual time value and 4 digit 0.3” 7-segment red LED lower d...

Technical Specifications

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  • Specification for DCT-721:
  • New Page 1

    Input

    Proximity switch / Photo sensor, encoder, potential free contact etc.

    Sensor Supply

    5 to 24 VDC.

    Set Point

    Single or Dual Adjustable using soft touch keyboard.

    Output

    Two relays with single change over potential free contact (5A@230VAC) at the end of the set count.

    Remote Start/Stop

    Can be provided using potential free contacts.

    Memory Back Up

    Retention of last count value in the event of power failure.

    Supply

    SMPS - 100 to 240VAC, 50/60 Hz.

    Size

    72 x72 x 65 mm.

    Enclosure

    ABS plastic with polycarbonate front.

  • Specification for DTR-721:
  • New Page 1

    Time Resolution

    0.01Sec (10mS), 0.1Sec (100mS), 1 Sec / Min / Hour – user programmable.

    Time Base

    Using high frequency quartz crystal.

    Time Count

    UP or DOWN – programmable.

    Reset

    Using front panel switch

    Function/Mode – Programmable

    ON delayed (Relay to turn ON after the end of the set time)

    or OFF delayed (Relay to remain ON till the end of the set time)

    or CYCLIC – (Relay will remain On and Off  as per the programmed time)

    Set Point

    Single (On/Off delay) or Dual (Cyclic) - adjustable using soft touch keyboard.

    Output

    Two relays with single change over potential free contact (5A@230VAC) at the end of the set time.

    RemoteStart/Stop

    Can be provided using potential free contacts.

    Memory Back Up

    Retention of last count value in the event of power failure.

    Supply

    SMPS - 100 to 240VAC, 50/60 Hz.

    Size

    72 x72 x 65 mm.

    Enclosure

    ABS plastic with polycarbonate front.

  • Specification for LSW-72:
  • New Page 1

    Time Resolution

    0.01Sec (10mS), 0.1Sec (100mS), 1 Sec / Min / Hour – user programmable.

    Time Base

    Using high frequency quartz crystal.

    Time Count

    UP counting from 0 time.

    Function/Mode – Programmable

    Stop Watch function to Start the timer, Stop the timer or Reset the Timer using front panel or remote contact switches.

    Set Point

    Single - Adjustable using soft touch keyboard.

    Remote Start/Stop

    Can be provided using potential free contacts.

    Output

    Single relay with single change over potential free contact (5A@230VAC) at the end of the set time.

    Supply

    SMPS - 100 to 240VAC, 50/60 Hz.

    Size

    72 x72 x 65 mm.

    Enclosure

    ABS plastic with polycarbonate front.



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