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I have a Chubb Extinguishant Control Panel for a small server room, and have been tasked with finding the manual/off/disable key. Does any one know what key these use? I've done some research and found that it is a K4.01 Series panel. 4 zone single area, K9704103...

Slightly off topic, but im wondering if anyone can help. I have a PSU which has 24VDC input then out puts -12VDC 0VDC and +12VDC. This has failed and is giving out aprox -3.8VDC and +4VDC. This supplies a specific (anicent) serial line driver which we cannot replace at this time (trust me ive...

I'm just wondering if any alarm technicians use "Battery Replaced" stickers when replacing battery's? The kind with "By" & "Date" spaces. At work I use "Calibrated" stickers when I have calibrated a piece of kit, but when replacing batteries in PLC etc I have to use the same "Calibrated"...

Not exactly a DIY electrician type question, but i wonder if anyone has any experience of making engraved labels. I'm looking for a machine to produce labels such as in the image below. I think that one is on 6mm acrylic. All i can find on Google are eBay special build at home laser engravers...

Maybe this is the wrong place but, i'm looking for the correct name for the kind of back board that contractors usually install instruments or control panels on. Usually grey and about 10mm thick. I've attached a couple of stock images for the kind of thing I'm after. The grey/black board that...

Not really DIY or domestic related this one; Whilst out on another site today, i found this strange set up in the corner of the room. What starts out looking like a DNO lead sheathed supply cable.... which comes from under ground, then terminates in an old (60s??) metal cutout...

Whilst out on a remote site today (siphon priming station) i noticed that the mains supply cut out has black stuff leaking out of the bottom. Obviously this isn't ideal, but is it worth reporting to the DNO? Also how does it work when its not a domestic property? I'll just report it to the...

Hi, I wonder if it would be possible to calculate the approximate length of a cable from a few know values? I work at a water treatment plant as a controls and instrumentation engineer (not an electrician) and have a panel that i cant for the life of me find out where it is fed from. The...