Timers!
- Thread starter dazedel8
- Start date
preferably a <2 second timer!
Im ready to buy this http://multiponics.com/shop/accessories/worlds-best-high-pressure-aeroponics-timer-by-multiponics/
can someone at least explain to me why its worth 300$?
Im ready to buy this http://multiponics.com/shop/accessories/worlds-best-high-pressure-aeroponics-timer-by-multiponics/
can someone at least explain to me why its worth 300$?
dont buy that unless you hate money!
buy an atc 422ar timer
super versatillity will go down to 0.1 seconds
from 12-240volts dc and 20-240volts ac
around $55 before shipping
http://www.rammeter.com/atc-automat...r-100-s0-x-multi-range-repeat-cycle-timer.php
you need an octal base as well
http://www.rammeter.com/atc-automat...83a-8-pin-din-rail-surface-mounted-socket.php
Nutes and Nugs
Well-Known Member
What do you want to run for <15s and 1m off?
indrhrvest
New Member
No sense spending $300 on a 0.1sec timer for a pumped system that takes at least 3 seconds to get to full pressure.
The 422 is not only much cheaper, it has a proven track record for reliablility in hpa.
I've got three of them with the backing plates if you want to buy one. We picked up some for product development. Later I found out from a proffesional in the industry that they don't have a long cycle life compared to the more expensive ones. He pointed me to a few, one of which Multiponics is using. I priced out what it would cost to buy the timer, panel, fittings, plates etc.. In the end I just decided to source from Multiponics.
However, the 422 is a good timer, nothing wrong at all with it, lots of people are using them to satisfaction. If you've got the money to spend, might as well get the longer life timer in a nice water proof enclosure. If you don't want to spend a lot of money, the 422 is a good timer too.
Keep in mind, the multiponics unit does come with a water proof enclosure, strain fittings etc.. Those do add a little $$ to the price.
They should throw the enclosure in for free considering the profit margin.
The RTE timers they use are dirt cheap, high quality for under $40 ? i think not. The professional who pointed you to the multiponics timer was probably on commission
www.ecdcontrols.com/electrical-components.1380/rte-analog-timers.aspx
Any timer with a relay output will have a finite life because the contacts ultimately wear out. My homebrew 12v cycle timers use mosfets which dont have mechanical contacts.
The RTE timers they use are dirt cheap, high quality for under $40 ? i think not. The professional who pointed you to the multiponics timer was probably on commission
www.ecdcontrols.com/electrical-components.1380/rte-analog-timers.aspx
Any timer with a relay output will have a finite life because the contacts ultimately wear out. My homebrew 12v cycle timers use mosfets which dont have mechanical contacts.
indrhrvest
New Member
The professional who pointed you to the multiponics timer was probably on commission
Actually no, it was a guy from the Company we've hired to design our facilities automation. We're developing an 8 channel solid state wireless control system. So for every 8 trays, you'll be able to link to a single device which will be accisible via local server or web based. The idea is to be able to automate everything from a single location.
Wait till you see what our R&D has turned up regarding rotary vane pumps
indrhrvest
New Member
You spend cash like its going out of fashion
Patents my friend.. patents.. It's about intellectual property, it's not about doing it the cheapest way possible. The hardware is OEM and already available. It's the software application that's key.
A vane pump works a little differently. You wouldn't be able to use one effectively with timers or pressure switches. But if you have a software application...
Little video we did..
http://www.youtube.com/watch?v=4iRRUgYJf2s
indrhrvest
New Member
im liking this one better myself.
syder. what kind of battery do you intend to use. and how will you keep the battery charged. i think i heard a deep cycle marine battery works best, and you need some sort of special charger that charges your battery the correct way, im sure atomizer will explain.
You can use discharge a marine battery to 50% of its capacity without affecting the lifespan. A deep cycle battery can be discharged to 80% of its capacity.
A tiny 7 Ah deep cycle battery running a timer and solenoid on a constant 1sec/3minute cycle would take around 8 weeks to drop it to the 20% charge level, a 70Ah could run it for a well over a year. If you hook a solar charger to it you wont need to worry.
A tiny 7 Ah deep cycle battery running a timer and solenoid on a constant 1sec/3minute cycle would take around 8 weeks to drop it to the 20% charge level, a 70Ah could run it for a well over a year. If you hook a solar charger to it you wont need to worry.
sounds like thats the way to go. now knowing what deepcycle stands for if there is a significant difference in price im going to run a standard marine battery.
