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?
-- A host is a host from coast to coast.................wb8foz@nrk.com & no one will talk to a host that's close.......................... Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433
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.
-- mikko
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.
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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.
-- A host is a host from coast to snipped-for-privacy@nrk.com & no one will talk to a host that's close.......................... Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433
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