โOct-24-2021 10:12 AM
โOct-25-2021 12:36 PM
โOct-25-2021 09:44 AM
Gdetrailer wrote:
Otherwise, what would be the point of a timer that looses not only the time but the programming..
You can also opt for the simpler and cheaper "mechanical" versions that use a adjustable "pin" to trip on/off, those typically give you 30 minute increments and are "24hr" type which means the program repeats every 24 hrs.
Found HERE for about $8
Granted, the time will stop when you lose power, no big deal when it comes to charging a battery and you can leave it pickup anytime the power comes back on or adjust it.
Dirt cheap, simple and reliable.
My local Ham radio clubs used the simple timer method for 20 some yrs to maintain backup power (old car battery) for the clubs emergency communications shack.. Now days they use newer tech but idea is still the same.
As a note, you want one that is rated for appliances which uses relays or mechanical switches. Ones not rated for appliances can and often use solid state Triac devices to do the switching which may not work well with your converter or power supply.
โOct-25-2021 07:00 AM
MEXICOWANDERER wrote:
Screwup Proofing is why I use a timer.
Infallible reliability is why I chose the Intermatic mechanical windup timer.
Saving a few dollars which destroys a few thousand fails the wisdom test utterly.
For example when I did battery cycle testing, I chose a 12-volt powered OMRON timer that over-rode the voltage limit switches. Destroying a pallet of L16s was not an option.
The fact that the wind up timers work in commercial restrooms is a testament of their reliability and ruggedness.
Are they accurate? Down to the minute? Hell no. Did I need resolution down to the minute? Hell no.
I just needed an absolutely reliable cutoff without being forced to learn c++ programming language.
โOct-25-2021 06:37 AM
pianotuna wrote:
Gdetrailer,
Does it retain it's "memory" if the power goes off?
โOct-25-2021 05:14 AM
pianotuna wrote:
Gdetrailer,
Does it retain it's "memory" if the power goes off?
โOct-24-2021 08:27 PM
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โOct-24-2021 07:39 PM
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โOct-24-2021 03:49 PM
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โOct-24-2021 01:58 PM