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Coin Operated Timers |
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HRD Series Single Shot Timers
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Features
Simple single shot operation Solid state digital time Inexpensive Durable Water resistant potted construction Compact (2" x 3" x 1-5/8" over relay) One impulse to start Wide selection of time ranges Wide selection of voltages
Simple One-Shot Timer
OPERATION: Input voltage must be applied to terminals 1 and 3 and maintained prior to and during operation. Breaking power while operating will reset timer to zero when power is restored. The HRD unit will accept one closure from the initiate switch and activate the load for the set time. On completion of the time setting the load is de-energized. The Initiation Switch MUST break before a new cycle may be initiated. Timing is adjustable by means of the small knob with a repeatability of .5%.APPLICATIONS: For control of pumps, showers, lighting, small motors, and other electrical devices where a coin operated timed function is desired.
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Simple wiring and easy installation: two input
leads into the timer, two leads to the load, and
two leads to the initiate switch, make for simple
trouble free service. Electro-mechanical relay
allows loads up to 20 amp, with little or no heat
dissipation problems.
AVAILABLE IN: 20-HRDS123 12VDC .1 to 10 minutes 20-HRDS223 24VAC .1 to 10 minutes 20-HRDS224 24VAC 1-100 minutes 20-HRDS423 110VAC .1 to 10 minutes 20-HRDS424 110VAC 1-100 minutes |
Timers operate equally well at 50 or 60 hz, using their own internal oscillators, but they are voltage sensitive. Built of all solid state circuitry (except for the relay), deeply potted to protect the components from humidity and dirt, the rugged unit is appropriate for a wide range of applications, indoors or out.