The Macromatic TR-606 True Off Time Delay is designed to replace the functionality of pneumatic time delay relays which are very large, expensive and not very accurate. Unlike standard electronic Off Delay time delay relays (see page 29), a True Off Delay does not require a trigger switch or the continuous application of input voltage. Instead, these products keep the logic circuit and relay energized during the Off Delay (Delay on De-energization) period with an onboard power source.
The Macromatic TR-606 Series is a perfect product to use when a trigger switch is not available in the circuit or when the application is to replace the functionality of a pneumatic time delay relay. These products come with 8 separate timing ranges covering 0.5 seconds – 30 minutes which are easy to select & setup with one rotary switch & potentiometer.
Off Delay Timer Operation: Upon application of input voltage, the output is energized. When the input voltage is removed, the time delay (t) begins. At the end of the time delay (t), the output is de-energized. Input voltage must be applied for a minimum of 0.5 seconds to assure proper operation. Any application of the input voltage during the time delay (t) will reset the time delay. No external trigger is required.