I seek a timing relay with some/all of the following:
a) LV operation, 12-24VDC or AC
b) Input triggers a one-shot output
c) Intervals in hours, 1-14 or so.
d) Reset that will terminate the one-shot, and await the next trigger.
e) Two selectable one-shot times; this one I can handle with 2 relays with the outputs in parallel.
I am looking at Crouzet, TE Connectivity, Omron, etc. Don't yet find any with reset inputs.
Any suggestions?
Ebay has a bunch of multifunction timer modules, like this one (watch out for line wrap) that might work for you:
Ed
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Have a look on 'programmable relays', i.e. small PLCs that are available from multiple vendors. Smallest ones typically have something like 4 output relays and 4-8 inputs.
wire ~reset to "+12 in"
In other words to reset turn off the power to the relay.
This probably requires that the reset pulses are several milliseconds long for reliable operaton.
I'm looking at the 175MD I'll have to open the power to reset, but Mode Q offers resetting the timeout that would be useful in this appliaction.
They also have the brick TSE that is about the same price.
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