Versatile and reliable, timers and controls from Airotronics are putting power to work in transportation and industry, agriculture and appliances, manufacturing and services across North America and around the world. By managing the flow and form of power in a wide variety of specialized applications, our innovative products make things happen at the right time in your systems, environments, vehicles and inventions.
On Delay, Delay on Operate, Delay on Energization
Application of power to the timer input voltage terminals starts the time delay cycle. At the end of the preset delay, the output transfers until it is reset by interrupting the input voltage.
Off Delay, Delay on Release, Delay on De-Energization
Power is continuously applied to the input terminals of the timer. Upon closure of a Normally Open (N.O.) external initiate switch, the load transfers immediately and remains transferred as long as the external initiate switch is closed. Commencement of the time delay is deferred by maintaining closure of the external initiate switch. Opening the initiate switch starts the time delay. At the end of the delay period, the load de-energizes and the timer is ready for another cycle. Delay time may be reset to beginning, prior to the end of the delay period, by momentarily reclosing (pulsing) the initiate switch.
Recycle Timer, Recycling Timer, Flasher.
Application of power to the input voltage terminals starts the “Off” delay cycle. At the end of the “Off” delay period, the load is energized and the “On” delay starts. At the end of the “On” cycle, the load is de-energized, the timer returns to the “Off” cycle and the cycling is repeated as long as input voltage is applied. Removal of input voltage will reset the timer to its pre-power condition.
The term “Single Shot” signifies a single pulse output of some duration. Single Shot on Make: Power must be applied to the input voltage terminals continuously. Upon closure of a Normally Open (N.O.) external initiate switch, the load is instantaneously energized and the time delay cycle starts. Maintained closure or actuation of the external initiate switch during the delay cycle will not affect the time delay period. When the delay period expires, the timer will reset to its original position and is ready for another cycle. Single Shot on Break: Power must be applied to the input voltage terminals continuously. Upon closing and opening an external initiate switch, the load is instantaneously energized and the time delay cycle starts. When the delay period expires, the timer will reset to its original position and is ready for another cycle.
Interval, Interval Delay
When power is applied to the input voltage terminals, the load is energized immediately and the time delay cycle starts. At the end of the delay period, the timer transfers back to its pre-power position. Removal and re-application of input voltage resets the timer. Delayed Interval: Application of power to the input terminals starts the “Off” time. When this time is complete, the load energizes for the “On” time. At the end of the “On” time, the load de-energizes and remains in this state until the input power is removed and reapplied to start a new timing cycle. Both time periods can be individually adjusted.
True Off Delay
Application of the supply voltage energizes the output relay. The timing period begins upon removal of the supply voltage. At the conclusion of the timing period, the output relay is de-energized. Reapplication of input voltage before the delay expires resets the time period. Instantaneous Contact option: Application of supply voltage for a minimum of 100 milliseconds initiates time out. Instantaneous contact and timed contacts transfer. Upon removal of supply voltage, instantaneous contact drops out, and timed contacts remain closed for duration of selected time (off-delay) then drop out. Reapplication of power starts the cycle.
Anti-short-cycle timer prevents premature cycling of compressors in refrigeration, air conditioning and heat pumps, thereby reducing nuisance tripping of fuse or circuit breaker. When power is applied (i.e. thermostat closes), the load energizes. Removal of power begins the “lockout” and the time delay begins (i.e. locking out the compressor). The load is energized after the time delay expires. S1 option provides a 1-second delay before the load is energized. Delay On Make option delays the initial load output for up to 5 minutes.
Unprecedented convenience in a single timing control. Set timing mode and time range to suit various needs.
CURRENT SENSORS: RELAY AND SOLID STATE SERIES
CS RELAY: Over-current and under-current sensing • Go-No Go sensing • Toroidal sensing provides complete isolation between sensed current and control circuit • Easy setting of trip point with unique combination of LED indicator, current adjustment and percentage potentiometers • Can switch up to 20 amps (1.5 HP) • Range of input voltages • Variable and fixed time delay • No heat sinking required
HCS SOLID STATE: High range over-current sensing, up to 60 amps • Toroidal sensing provides complete isolation between sensed current and output circuit • Choose factory-fixed trip point or variable setpoint with onboard potentiometer • Self-powered • Direct connection to Programmable Logic Control input
CUSTOM PRODUCTS: YOU DREAM IT UP, WE'LL GET IT DONE
A multitude of options, plus in-house engineering, and direct communication throughout development and testing, ensures success for the most innovative or specialized controls. We can combine features, functions, parameters and options from across our extensive product lines. Or create a one-of-a kind solution that meets your needs perfectly and sets your product apart. Rigorous quality standards are in place at every step: development, prototype, approval and of course, 100% testing before shipping.