Auto Reset Digital Timers
Reviewed by: Jon Lowy, consulting engineer
Description
Auto Reset Digital Timers are devices designed to automatically reset themselves after completing a timing cycle. They are used to control the duration of operations by starting and stopping processes based on preset time intervals. These timers are capable of being programmed to start, stop, set, reset, and check timing functions, providing flexibility in managing time-dependent operations.
Working Principle
Auto Reset Digital Timers operate on the principle of elapsed time, where they activate an output signal once a preset time is achieved. The timer starts counting when an operation begins and resets itself after the timing cycle is complete, ready to start the next cycle. This functionality is particularly useful in applications requiring repetitive timing cycles without manual intervention, ensuring consistent and reliable operation.
Applications
Auto Reset Digital Timers are widely used in industrial process control equipment to regulate operations. They are also employed in consumer electronics for household appliances, where they manage functions like cooking durations in microwaves or cycle times in washing machines. In industrial settings, they help in recording equipment usage and age, ensuring timely maintenance and operation efficiency.
Advantages over other Digital Timers
One significant advantage of Auto Reset Digital Timers is their ability to automatically reset after each cycle, reducing the need for manual resetting and minimizing human error. This feature is particularly beneficial in applications requiring continuous and repetitive operations, as it enhances efficiency and reliability compared to timers that require manual intervention.
Limitations
A limitation of Auto Reset Digital Timers is their dependency on a stable power supply. Any interruption in power can disrupt the timing cycle, potentially leading to operational inefficiencies. Additionally, these timers may have limitations in terms of the maximum time they can be set for, which might not be suitable for applications requiring extended timing durations.
Considerations
When selecting Auto Reset Digital Timers, it is important to consider initial costs, which can vary based on the complexity and features of the timer. Operating expenses are generally low, but factors such as power consumption and maintenance should be evaluated. Durability and accuracy are crucial, as these affect the timer's performance and longevity. Replacement and maintenance costs should also be considered, ensuring that the chosen timer meets the specific needs of the application while providing cost-effective operation over its lifespan.
from M.H. Rhodes/Cramer Company
Description: The MARKTIME ® 88 Series 7 Day Programmable Timers are very useful in situations where a programmed sequence of operation is desired. These timers are used. in applications in the home or business environment as a single point control for table lamps, torchaire lamps, coffee makers,... [See More]
- Reset: Auto
- Technology: Electronic
- Instrument Type: Timer
- Number of Functions: Multi
from Hoyt Electrical Instrument Works, Inc.
SHAFT ROTATION monitors, frequently called ZERO SPEED or TACHOMETER relays operate when the pulses (usually generated by a proximity switch) received fall below a user selected set point. This situation is sometimes caused by something jamming the machine. The motor(s) draws excessive current thus... [See More]
- Reset: Manual; Auto
- Technology: Electronic
- Instrument Type: Counter; Timer; Counter / Timer Combination
- Number of Functions: Multi
from Trumeter Company, Inc.
This versatile count up or count down predetermining counter/timer with prescaler has a wide range of innovative and attractive features. Designed with imagination and built to the highest standards it offers both counting and timing functions in one unit. Features. Simple programming via menu... [See More]
- Reset: Manual; Auto
- Technology: Electronic
- Instrument Type: Timer
- Number of Functions: Multi
from Specialty Product Technologies
The CX200 is a microprocessor based timer/counter housed in a standard 15 terminal CYCL-FLEX ® plug-in case. Time or count operation, time range, and standard or reverse start operation is selected by 7 miniature rocker switches located inside the unit housing. [See More]
- Reset: Auto
- Technology: Electronic
- Instrument Type: Timer
- Functions: Repeat Cycle
from Traceable® Products
Timer counts down from 99 minutes, 59 seconds in second increments with 3-button ease and big-digit visibility. Automatic memory resets the display to the last programmed time-ideal for repetitive tests. Quartz-crystal accuracy is 0.01%. To assure accuracy an individually serial-numbered Traceable®... [See More]
- Reset: Auto
- Technology: Electronic
- Instrument Type: Timer
- Number of Functions: Single
from Marsh Bellofram Group of Companies
Direct Replacement For Electromechanical Timers. Two Timing Modes. Data Retention with EEPROM Memory or Battery. Five Time Ranges. Simple Keypad Time Setting. Sealed Faceplate. Keypad Lockout of Time Setting. Easy Programming. Instantaneous Contacts Directly Track the Control Input [See More]
- Reset: Manual; Auto
- Technology: Electronic
- Instrument Type: Timer
- Number of Functions: Single
from Specialty Product Technologies
The SX300 Series Counter is a microprocessor based, 6 digit counter housed in a standard DIN style case (68 mm square cutout). The small case and front bezel require minimal panel space, yet provides large, easy to read 36 inch LED display. [See More]
- Reset: Auto
- Technology: Electronic
- Instrument Type: Timer
- Functions: Pulse Counter; Interval Delay Timer
from Traceable® Products
Input a time and the instant memory always returns the display to the programmed time. This is the ideal timer to dedicate to a routinely timed test. Bright, extra-large, 5/8-inch-high digits count down at any set time from 99 minutes 59 seconds to zero. At zero a loud 30-second alarm sounds. [See More]
- Reset: Auto
- Technology: Electronic
- Instrument Type: Timer
- Number of Functions: Single
from Specialty Product Technologies
A unique combination of versatility and simplicity make the Eagle Signal brand B866 the premiere low cost timing solution. Housed in a compact 1/16 DIN package, changing the set time is as simple as turning a dial. Selectable time ranges provide preset times ranging from 0.06 seconds to 10 hours. [See More]
- Reset: Auto
- Technology: Electronic
- Instrument Type: Timer
- Number of Functions: Multi
from Specialty Product Technologies
The B856 features a compact 1/16 DIN package, precise digital setting, versatile functionality, and a straightforward button-per-digit interface. It can be easily programmed to perform any standard timing operation: On-Delay, Off-Delay, Interval, or Repeat Cycle. A unique On-Delay/ Interval Mode... [See More]
- Reset: Auto
- Technology: Electronic
- Instrument Type: Timer
- Number of Functions: Multi
from Specialty Product Technologies
Designed as the "best" fit timer for most applications, the B506 family is divided into 3 separate base models. The standard unit offers a wide range of field selectable operating modes and time ranges as well as a host of other convenient features. The high performance model is a good choice when... [See More]
- Reset: Auto
- Technology: Electronic
- Instrument Type: Timer
- Number of Functions: Multi
from Specialty Product Technologies
The DA100 is a solid state ON/OFF repeat cycle timer housed in a 1/8 DIN case. The timer uses CMOS integrated circuits for the timing function. Sixteen time ranges are available in many combinations of ON and OFF periods. [See More]
- Reset: Auto
- Technology: Electronic
- Instrument Type: Timer
- Time Range: Multi
from Specialty Product Technologies
The BRE series reset timers are microprocessor driven. They provide an accurate adjustable time delay between the actuation of the control circuit and the operation of the load switches. [See More]
- Reset: Auto
- Technology: Electronic
- Instrument Type: Timer
- Time Range: Multi
from Specialty Product Technologies
The DG100 is a solid state timer housed in a 1/8 DIN, molded NORYL ® case. The timer uses CMOS integrated circuits for the timing function. The DG100 series timer is available in 16 time ranges from 3.5 seconds to 30 hours. The DG200 series timer is a microprocessor based, four digit reset timer... [See More]
- Reset: Auto
- Technology: Electronic
- Instrument Type: Timer
- Functions: Delay On Timer; Interval Delay Timer
from Specialty Product Technologies
The A103 Elapsed Time Indicators provide a range of capabilities unequaled in products of similar size and cost. A single model can be programmed to display in seconds, minutes, hours, or hours: minutes: seconds. The A103 series also includes matching indicators for count totalization and rate... [See More]
- Reset: Auto
- Technology: Electronic
- Instrument Type: Timer
- Direction: Up Count; Bi-directional Counter