Description
The TDR Series of time-delay relays are comprised of digital
circuitry and an isolated, 10A relay output. The ON and OFF delays
are selected by means of two, ten position binary switches, which
allow the setting of the desired delay to be precise every time.
Operation (Recycling - ON Time First)
Upon application of input voltage, the green LED glows, the
output relay is energized, the red LED glows, and the T1 ON
time begins. At the end of the ON time, the output
de-energizes, the red LED turns OFF and the T2, OFF time
begins. At the end of the OFF time, the output relay energizes
and the cycle repeats as long as input voltage is applied.
Reset: Removing input voltage resets the output and time
delays, and returns the sequence to the first delay.
Operation (Recycling - OFF Time First)
Upon application of input voltage, the green LED glows, the T1
OFF time begins, the load is OFF. At the end of the OFF time,
the T2 ON time begins, the load energizes, and the red LED
glows. At the end of the ON time the load de-energizes and
the red LED turns OFF. The cycle repeats until input voltage
is removed.
Reset: Removing input voltage resets the output and the
sequence to the OFF time.

FEATURES BENEFITS
ON & OFF time delay
settings Independent adjustment allows for greater flexibility
3 Time Ranges Available
0.1s to 2.8h) Makes it versatile for use in many applications
Microcontroller based
Repeat Accuracy + / - 0.1% or 20 ms, whichever
greater; Setting Accuracy + / - 2% or 50 ms,
whichever is greater
DIP switch adjustment Provides first time setting accuracy
Isolated output contacts Allows control of loads for AC or DC voltages
LED indication
select models) Provides visual indication of relay status