Not sure that this exact unit has been shown here. This timer will take the place of the SSR and will run the motor for a preset time so that your not starting and stopping the motor every cycle of the press. I set it to feed about 4 or 5 bullets at a time. You have to use a normally closed proximity switch.
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I put the control box, front panel and buttons on thingiverse.
https://www.thingiverse.com/thing:6491582
Timer normal mode:
buttons left to right- 1. STOP 2. SET 3.UP 4.DOWN
button 1 in normal mode will stop the unit, press once for OFF and again for ON. NOTE if unit will not run press the
button because the unit maybe in the off mode. nothing tells you its in the off state.
button 2 short press will display current settings. button 3 & 4 do nothing in normal mode.
Timer how to Program:
press button 2 for two seconds
press button 3 till display reads P-4
press button 2 display will show OP and blink 3 times, then will display digits 000
press button 3 to adjust seconds. exp: 035
press button 1 will cycle the decimal 0.3.5./03.5/035. 03.5 seconds is what I set.
press button 2 for 2 seconds to save settings. DONE.