changeover timer socket?

[stinkwheel]

Is there such a thing? I've looked but not found.

It's for a reptile vivarium. The wee beastie needs it to be cooler at night than during the day but still needs heat.

The solution is currently two heat bulbs, one for day, and a lower wattage one for night. I'd like to have them on a timer.

The simple way would be two socket timers however, they are never perfectly in synch and both on at once would be bad. Current solution is to have a gap in the timing with neither on but I'd like to find a timer that instead of being on or off, switches between two sockets. Then one or the other is always on, never both.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[stinkwheel]

The beastie in question. Drax, a baby panther chameleon. He will be a lot more colourful in a couple of months.
https://lh3.googleusercontent.com/pw/AP1GczOe5lhHkAw8-nahrqpKeZN2tjqDNImYrXwBiKcBptYHCXR2SplBbwxiAQrc9rLoDKhE-ZuqQFbuZivI69xgjCANmV3c45APqPzMLHW-uU22CZngU2pKRxu9NE-dqHbkCvFRkKX086x6a74TjNtOJc5P=w650-h876-s-no
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Nobby the Bastard]

Or the night bulb on permanently and a supplementary one on a timer for daytime.

Don't overcomplicate the problem.
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050

[stinkwheel]

[panrider_uk]

Tapo smart plugs
Time is always accurate and each one can have it own schedule(s).
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Current bikes: Hondas - Forza 750, ST1100A

[ZebraDriver]

Use the timer switch to power a changeover relay (or a small contactor) as one set of contacts switch off another set will switch on.

[stinkwheel]

I know what'll work if I can't find anything simpler. A central heating controller. Has hot water and central heating outputs and a selectable timer switch
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Easy-X]

I have one of these:

https://www.tp-link.com/uk/home-networking/smart-plug/kp303/

WiFi enabled power strip that according to the blurb you can set schedules for each socket although I've not tried said feature personally. If it looks like something you could use I'll dig it out of the cupboard and test the functionality for you.
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Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter

[to v or not to v]

just get a bloody cat. far less complicated.
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current bike Yamaha Thunderace.
its old and fat, but its a damned good ride. the bikes not bad either.

[stinkwheel]

I'll be honest, I'm trying to stay electromechanical with this setup. I have an immense distrust of all things microdigital and especially internet of things related.

The failure mode of an electromechanical setup is always safe. It'll either be day, night or off with time to notice a failure. We do not want a repeat of the aquarium full of hot fish soup incident.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Easy-X]

Something like this to "electronic" ?

https://www.electrical4less.co.uk/product/live-electrical-double-module-digital-timer/
____________________
Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter

[P.]

Can you not get an internal heater that has hardware timer and heat level settings? When I had my sugar gliders, I had a ceramic heater inside which was 28 degrees in the day and 22 at night, it was hardcoded though so I had to get in the viv to change it should DST kick in.

Found it nicer than the bulb style, 2 heat probes meant it found a nice average when the viv was 7ft tall

HabiStat do a range.

[stinkwheel]

[ZebraDriver]

Its easy to do but remember that you need a power supply onto the relay thats live when the timer switches out. It makes it slightly difficult (but not impossible) when using a plug in timer. It may be easier to build it all into an enclosure and use a din rail mounted timer inside the box

[stinkwheel]

That timer is a panel mount, thought I could mount it on the face of an enclosure box and take the power into the box through a gland and have two IEC sockets for the day/night outputs. Then I can just take a cable into the enclosure and branch one wire to the timer supply one one to the base terminals of the relay.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[WD Forte]

A box with two cheap, easily sourced CH timers in parallel would be simplest.
Same power in but one for high temp times one for low.
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bikers smell of wee

[Robby]

The ideal thing for your application doesn't seem to exist, which would be a traditional timer plug but using grid ac power frequency for time, like old fashioned plug-in clocks. Purely electromechanical, but decent accuracy.

The next best thing would be to source a pair of decent timer plugs from a shop you can trust, and check them every few days for drift.

The right place to ask would be a reptile forum, but it would make BCF look neurotypical.

[stinkwheel]

[Easy-X]

Is this not sufficient?

https://www.reptiles.swelluk.com/media/catalog/product/h/a/habistat_digital_temp_thermostat_t001001.png
https://www.reptiles.swelluk.com/habistat-digital-temperature-thermostat-day-night-timer#digital-temperature-thermostat-day-night-timer
____________________
Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter

[Robby]

[stinkwheel]

[stinkwheel]

Rigged this for just now. The timer does the UV lighting. The RCD switch does night/day heat. Pending me thinking about and implementing a timer changeover circuit. All the hard-wiring is done now so it'll just be a case of hooking it into the automated system when I get it sorted out.

Old-school dymo labels because they work, stay stuck and don't fade.

https://lh3.googleusercontent.com/pw/AP1GczOHJ_wCgGFvUxnkhvrcNGHaprKhpcoqXN_DtGh_rKBhzGJWd5SkNQ4flByO4lna9wsmgJk5wG7m0REfyQIeM3iIqJazqeRiG8RDFI_2bHP1PEAZRx7KeKSRGdHeJbDrdy2IBN05pUe3ANombWZ_WTvs=w1557-h876-s-no
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[sickpup]

An SPDT Contactor relay would do the job.
It will require two sockets, one for power and one for the timer and normally has two trailing leads. One lead for each live

It will normally have one switched live for the small light and a switched live for the big light that when operating disconnects the small light.
In a failure state it would normally keep the small light operating.