General Chat Thread, Anyone know anything about electronics and want to help me out :) in General; Over the break we had a power cut which in turn left the server room air-con switched off, the first ...
11th June 2012, 09:48 AM #1
Anyone know anything about electronics and want to help me out :)
Over the break we had a power cut which in turn left the server room air-con switched off, the first I knew was when I popped in 4 days later to do something and nearly passed out in the 50+ degree heat in the server room.
I want to create an early warning system but know nothing about electronics ( I am adept at following instructions though)
Is anyone able to help me out by designing a plan to build from parts a temp sensor with a theshold level with alarm and flashing light that I can get from say maplins?
I know it's a big ask, but would appreciate any help.
IDG Tech News
11th June 2012, 09:51 AM #2
Starter for 10 - arduino ( / freeduino) plus a DS18B20 one wire calibrated temp sensor, driving a mains relay (via a transistor) which drives a flasher / siren / whatever.
11th June 2012, 09:52 AM #3
Not something to build buy maybe a possible future investment? AVTECH - Room Alert 4ER Monitors Real-Time Temperature, Humidity, Power, Flood, Smoke, Room Entry, Air Flow, Heat Index, Motion, Sound, Light, IP Network Cameras, Panic Buttons & More with Logging, Graphing, Alerting, Signal Lights (optional) & Autom
can set threshold and warning levels, with a web UI and can set it up to email you when the various limits are reached.
11th June 2012, 09:58 AM #4
this: Temperature sensor tutorial - Using the TMP36 / LM35 outputs the temp readings to the serial console, but it should be a simple bit of coding to add a trigger for an attached light, etc
11th June 2012, 10:03 AM #5
Or if you want an off the shelf system you could look at things like the APC NetBotz environmental monitoring system.
NetBotz 200 - Product Information
11th June 2012, 10:09 AM #6
How good are your servers, depending on their managment ability many can be told to send an email when internal temperature reaches a certain level. Not as accurate as an external thermometer but will still give you some warnings.
11th June 2012, 10:12 AM #7
One of those can be configured to latch it's relay and thus activate a strobe/alarm etc... at a certain temp.
11th June 2012, 10:40 AM #8
Much simpler would be a standard room stat, a battery, and a bell/buzzer. All you need to do is check that the stat doesn't have a heater in it (some do). However, the more complex solutions are better in that they could warn you when you were away from the site.
11th June 2012, 10:51 AM #9
Thanks all a lot to look at, I was hoping to get some sort of battery powered unit, as when the power is off none of the network monitoring units will work. I want a visual, audible alarm that would indicate to caretakers walking past that there is a problem and to contact IT.
Thanks for all the suggestions, I did find this as well, IRPS1363 GSM Remote Power Socket - control mains devices by text messages - www.audon.co.uk
or this http://www.audon.co.uk/home_sms/gd04.html
Last edited by Disease; 11th June 2012 at 10:55 AM.
11th June 2012, 11:00 AM #10
Really simple. Like it. Mains charger (eg motorbike charger) to 12v leisure battery to 12v siren / beacon. 12v stats must be available. No mains isolation issues.
Originally Posted by Andrew_C
11th June 2012, 11:14 AM #11
We got one of these;
CM-2, The Original Climate Monitor*::*Climate Monitors*::*The Climate
Sends Text messages via a e-mail if a condition is met (so you need to ensure your network/gateway is powered in the event of a power failure) - various bits and bobs can be added to monitor other things link power.
11th June 2012, 11:23 AM #12
Our server room air-con used to do this - we got the engineers in to change the settings on the unit so it now autostarts. Can you do that for a start?
11th June 2012, 11:27 AM #13
11th June 2012, 11:34 AM #14
I've got a UPS on the aircon... but it's just a small domestic unit as the server count isn't huge
(Rural location => Lumpy electricity)
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