PERCENTAGE TIMER PTA SERIES | WITH MEMORY
The PTA Series is a microprocessor-based Percentage Timer that delivers reliable
and accurate timing for critical applications where the ON time (t1), as a percentage
of the total cycle time, must be adjustable. The fi xed overall length (t2) of the
repeating ON/OFF cycle is selected as the time range with multiple ranges offered
in seconds, minutes, and hours. Typical applications include controls for irrigation,
chemical feeding, electric heating & cooling, motors and lubrication systems.
FUNCTION: PERCENTAGE
Upon initial application of input voltage, the output is energized and time delay (t1)
begins. Time Delay (t1) is adjustable as a percentage of the overall cycle time (t2).
At the end of time delay (t1), the output is de-energized for the remainder of overall
cycle (t2-t1). The sequence then repeats until input voltage is removed. If input
voltage is removed and reapplied, the timing cycle will continue from where it left
off when the input voltage was removed. A setting of 100% energizes the output
continuously while a setting of 0% de-energizes the output continuously.
Features
- Industry-standard panel cutout and mounting pattern
- Retains timing sequence in the event of power loss
- Onboard potentiometer for easy time delay adjustment
- LED indicates relay status
- 10A SPNO output
- Terminal block makes wiring easier from top or bottom
- Secure termination with bare wire or crimp terminals
- Touch-safe terminal cover available - Macromatic P/N 70600
- Mounting hardware included
PERCENTAGE TIMER PTA SERIES | NO MEMORY
The PTA Series without memory is a microprocessor-based Percentage Timer
that delivers reliable and accurate timing for critical applications where the ON
time (t1), as a percentage of the total cycle time, must be adjustable. The fi xed
overall length (t2) of the repeating ON/OFF cycle is selected as the time range
with multiple ranges offered in seconds, minutes, and hours. Typical applications
include controls for irrigation, chemical feeding, electric heating & cooling, motors
and lubrication systems.
FUNCTION: PERCENTAGE (NO MEMORY)
Upon initial application of input voltage, the output is energized and time delay (t1)
begins. Time Delay (t1) is adjustable as a percentage if the overall cycle time (t2).
At the end of time delay (t1), the output is de-energized for the remainder of overall
cycle (t2-t1). The sequence then repeats until input voltage is removed. If input
voltage is removed and reapplied, the timing cycle will be reset. A setting of 100%
energizes the output continuously while a setting of 0% de-energizes the output
continuously.
Features
- Industry-standard panel cutout and mounting pattern
- No memory
- Onboard potentiometer for easy time delay adjustment
- LED indicates relay status
- 10A SPNO output
- Terminal block makes wiring easier from top or bottom
- Secure termination with bare wire or crimp terminals
- Touch-safe terminal cover available - Macromatic P/N 70600
- Mounting hardware included
