Description
The ESDR Series offers independent time adjustment of both
delay periods. Adjustment options include fixed, onboard or
external adjust. The ESDR is recommended for air drying,
automatic oiling, life testing, chemical metering and automatic
duty cycling. This series is designed for general purpose
commercial and industrial applications where a small, cost
effective, reliable, solid-state timer is required. The factory
calibration for fixed time delays is <±5%. The repeat accuracy,
under stable conditions, is 0.1% of the selected time delay.
This series is designed for input voltages of 12VDC to 230VAC
in five ranges. Time delays of 0.1 seconds to 1000 minutes are
available in six ranges. The output is rated 1A steady and 10A
inrush. The modules are totally solid state and encapsulated to
protect the electronic circuitry.
Operation (Recycling - ON Time First)
Upon application of input voltage, the output energizes and
the T1, ON time begins. At the end of the ON time, the output
de-energizes and the T2, OFF time begins. At the end of the
OFF time, the output 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 T2 OFF time begins. At the
end of the OFF time, the output energizes and the T1 ON time
begins. At the end of the ON time, the output de-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.

FEATURES BENEFITS
Microcontroller based Repeat Accuracy + / -0.1%,
Factory calibration + / - 5%
1A steady, 10A inrush
solid-state output Provides 100 million operations in typical conditions.
Totally solid state
and encapsulated
No moving parts to arc and wear out over time and
encapsulated to protect against shock, vibration,
and humidity
ON/OFF recycling with
independent adjustment
of both time periods
Separate on and off timing settings are knob
adjustable for added flexibility
Compact, low cost
design measuring 2 in.
(50.8mm) square
Allows flexiblility for OEM applications