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  • 314B Timer

    The ATC 314B is an economical multi-range solid-state TDR with two models; one for off-delay (delay-on-break) and one for interval-on-delay operation. With three dial-selected adjustable ranges, it provides any timing period between 0.035 and 100 SEC with excellent repeat accuracy even with wide changes in voltage, temperature and reset time.

    Off-Delay Model: Presuming the AC line is energizing the unit continuously, when the start switch is closed the relay energizes, the pilot light goes on and the unit resets. Opening the start switch begins the timing cycle. A relaxation oscillator runs at a rate determined by the set pot. When the oscillator count is equal to the level set by the range switch, a digital count circuit is satisfied and the unit times out.
    At time out, the timing circuit and relay are de-energized and the pilot light goes off. Closing the start switch resets the unit. After a power failure (or on first startup) the unit will go to the timed out condition (relay de-energized) until the unit is reset by closing the start switch to begin a new cycle.

    Interval-On-Delay Model: Timing begins when the start switch is closed; simultaneously the relay is energized and the pilot light goes on. Either a momentary/sustained start or a sustained start input can be used (see wiring). Reset is accomplished by de-energizing the unit. At time-out, the timing circuit and relay are de-energized and the pilot light goes off.

    Features:

    • Dial selected adjustable ranges: 0.035 – 1.0 sec,
      0.18 – 10 sec., 1.8 – 100 sec
    • Dust, moisture and impact-resistant molded plastic case

  • 319 Timer

    An economical solid-state TDR with octal plug-in base, the ATC 319 maintains excellent repeat accuracy despite wide voltage and temperature variations, even after long periods of down-time. One model has five dial-selected adjustable ranges and provides any timing period between 0.02 SEC and 30 MIN; Lower-cost models incorporate three dials elected ranges or a single adjustable range.

    Wide Choice of Ranges: In addition to the short ranges expected of an electronic TDR, the 319E is also available with ranges as long as 100 minutes, for AC or DC operation. An unusually versatile model, the 319E five ranger has five dial-selected ranges—from 0.3 sec to 30 min—and provides any dial-adjustable timing period between 0.02 seconds and 30 minutes; (1, 10 and 100 sec and 10 and 100 min). A single 319E model thus accommodates the needs of a wide range of applications, allowing the user to select–easily and precisely–an appropriate range to permit optimum setting accuracy. The dial face automatically displays the selected range. The 319 offers a choice of five dial-adjustable fixed ranges between 1 sec. and 30 sec.

    Cycle Progress Indication—Model 319E: All options incorporate a light-emitting diode (LED) which is on during the time cycle, off at the end of timing. The 5-range option also includes a second LED which separately indicates the status of the output relay: on when energized, off when de-energized.

    High Accuracy: The 319’s timing circuit is not subject to the large plus error that plagues many electronic TDRs after long periods of down-time: it maintains rated accuracy regardless of reset time variations, provided that there is at least 0.1 sec between cycles for Model 319E. All models hold unusually high repeat accuracy in the face of wide voltage and temperature swings.

    Features:

    • 2 ranges available:
      .3 Sec., 3 Sec., 30 Sec., 3 Min., 30 Min.
      1 Sec., 10 Sec., 100 Sec., 10 Min. or 100 Min.
    • High Accuracy
    • Universal Input Power Supply
    • Output Relay DPDT 7A @ 120VAC
    • Indicating LED turns on during timing
    • 8-pin octal plug-in base
    • Ranges change by pulling and twisting setting knob until it clicks

  • 329A Timer

    The most economical Solid-State TDR offered from ATC, the 329A on-delay TDR with plug-in base maintains excellent repeat accuracy despite wide voltage and temperature variations. A choice of eight fixed ranges are available from 0.3 seconds to 3 minutes.
    Price/Performance Value: The economical 329A is the lowest cost TDR ever offered by ATC. Ruggedly designed into a 36 x 36 mm housing, the 329A On-Delay TDR combines both highly accurate and repeatable timing with industrial quality that is usually found in only the more expensive timers.

    Choice of Ranges: The 329A is offered in a choice of eight different fixed ranges between 0.3 seconds to 3.0 minutes to permit optimum setting accuracy. The dial face clearly displays the range.
    Designed for Industrial Service: The 329A incorporates features designed to ensure a long trouble-free life expectancy, even in difficult industrial environments: high impact resistant housing with octal plug-in base that is easily surface/DIN or panel mounted; a DPDT 5 amp relay rated for 10 million operations at no load; and an oscillator-based timing circuit for high accuracy even with changes in temperature and voltage.

    High Accuracy: The 329A’s timing circuit is not a simple RC circuit, but it utilizes the sophistication of a proprietary integrated circuit that includes counting technology along with a stable oscillator to provide repeatable time delays.

    Features:

    • 36mm x 36mm housing
    • Eight (8) Fixed Ranges: 3 Secs., 1 Sec, 1 Min., 3 Mins.
    • Panel mounting or plug-in
    • 120VAC Operating Voltage
    • On-Delay Operation
    • 8-Pin Octal base
    • UL Listed

  • 339B Timer

    An economical solid-state TDR with octal plug-in base, the 339 maintains excellent repeat accuracy despite wide voltage and temperature variations. even after long periods of down-time. Two models are available. Each has six dial selected ranges from fractions of a second to as long as 10 hours. Each model has a selectable on-delay or interval timing mode.

    Wide Choice of Ranges: In addition to the short ranges expected of an electronic TDR, the 339 is also available with ranges as long as 10 hours. An unusually versatile timer, the 339 has six dial-selected ranges—from 0.3 sec to 3 hours or 1 sec to 10 hours—and provides dial-adjustable timing periods between 0.075 seconds and 10 hours. A single 339 model thus accommodates the needs of a wide range of applications, allowing the user to select easily and precisely—an appropriate range to permit optimum setting accuracy. The dial face automatically displays the selected range.

    Cycle Progress Indication: The 339’s LED annunciator provides a unique and effective method of cycle progress indication. Off before timing, the LED blinks at an ever-increasing rate as the cycle progresses; once every 3 1/2 seconds during the first 10% of the cycle, twice during the second 10%, and so on. At time-out, the LED stays on constantly, pulsing at a high rate. (In the 1 and 10-second ranges, the LED is off before timing, steady on during timing, and pulsing on after time-out.)

    High Accuracy: The 339’s timing circuit is not a simple RC circuit, but utilizes the sophistication of a proprietary integrated circuit that includes counting technology along with a stable oscillator to provide repeatable time delays.

    Multiple Timing Modes: Every 339 can be used for either on-delay or interval timing operation. The timing mode is selectable by a switch on the 339A housing.

    Features:

    • Wide choice of ranges
    • Cycle Progress Indication
    • High Accuracy
    • Multiple Timing Modes

  • MTA-91H Timer

    A powerful timer in a small package, the new ATC model MTA-91H Multi-function Time Delay Relay delivers unsurpassed performance in a plug-in package. Select from 10 configurable timing modes and a timing range from 0.1 sec to 10 days to meet your specific needs. Universally powered from 12-240 VAC/VDC, the MTA-91H allows users to stock one timer for many timing applications.

    Features:

    • 10 Timing Modes
    • Time Ranges from 1 sec to 10 days
    • 16A Rated Output Contacts
    • Inexpensive

  • 328E Timer

    Multi-Range / Multi-Function Timer, the 328E versatile dial-adjusted time delay relay provides a choice of On-Delay, Off-Delay or interval operation for any timing period between 50 milliseconds and 10 hours. Based on a unique digital circuit, it features cycle progress annunciation and is suitable for the most demanding industrial service.