hi I'm Steve from the techni webstore today I'm going to talk about changing motion sensors and give me some tips on how to to improve the way your security system I'll be right by putting new motion sensors in if your security system is five years or older you may consider now changing the motion sensors the motion sensor is important very important part of your security systems operation by detecting motion as detectives get old a number of things to happen the detectors can be prone to false lining or the detector may be prone to insensitivity which means it

actually doesn't detect correctly it's a simple job that most DIYs can undertake themselves at the technolog store we have a full range of motion sensors and we can assist you if you need to change your major and center to replace your motion sensors first you'll have to remove the old sensor from the wall and disconnect the wiring most tech does have a clip arrangement which unclips the cover you may take a little time to actually find out exactly how to unclip the cover on your old detector remove

the cover from the detector to get inside the detector which will expose the internal wiring and the mounting screws which connect the detector to the wall it's also a good idea to actually turn off the power to the control panel and disconnect the backup battery if you know where that's located some systems have a fuse on the system and but shorting the wires getting the detector may cause that fuse to blow work out now how to actually remove the circuit board most circuit boards are removable so you can either access the wiring

start by disconnecting the screws from the circuit board but taking a note of where the wires are connected and the color combination if need to be take a pen and paper and write down this combination and symbols on the actual terminal strips on the oil detector now the older tetra is removed you can now prepare the new detector installation let's have a look some of the detail actually on the wiring on the actual detector on this particular Tector we have a black wire which is the

negative terminal we have the red wire which is the positive terminal these supply the tile volts low voltage to power the detector and put video new detector we must make sure that we put the the plus and my wires are back in the terminals correctly over the detector will not function we also have a terminal here might normally closed and I'm turning the marked common or see so you'll see the blue wire is actually into the normally closed socket and there's also here a device underlined

device or a resistor which sits across between the common and the tamper on this particular detector the white wire is actually connect the tamper so this is a four wire arrangement so we have a pair of wires bring the power into the detector and we have a pair of wires taking the signal away from the detector your detector may actually have six wires going to it may have three different pairs in a six wire device you'll have one pair of wires the red and black typically for the 12 volts low-voltage maybe the blue and white pair will be doing the alarm signal back

to the alarm panel and then the third pair which could be in this case here it's actually a green and yellow pair where it could be an orange orange and green different combinations of different cables this would typically be the tamper circuit that's what's important to actually know down the actual terminals and what wires are connected the terminals before totally disconnecting so when you reconnect your detector you actually put the wires back in the right terminals the new detector we're installing to replace a roll detector we're using a Bosch a blue line

quad detector now the terminal strip is a different design the terminal strip is actually removable from the detector to make installation much easier also the terminal marking may be different from the detector that you removed but we'll just try and go for and explain the some of the terminals and what their purpose are why this one up on the bench just to make it easier to see how it actually goes but together also removing the

end-of-line device other end-of-line resistor because that will be needed to be reused in the new detector placing the wires through the hole that we've made in the back of the case to accept the cable in the new detector now look at this particular terminal block here we have it starts with T for tamper the negative power the positive power the normally closed alarm loop the second leg of the normally closed alarm loop has a data terminal here for other

devices which we're not interested in today it has the the final tamper one on the end so how we're going to connect this up is we're going to connect their end line device is going to sit between the tamper on the end here and the first normally the first normally closed because this why for this one was a four-wire design so we've now fitted our underline device that's in between the tamper and the normally closed

first of all we'll put in is the negative one negative power followed by a red or positive wire if the ends of the wires are actually a bit dog head or sticking out twist them together so they go in the last thing we want is small pieces of copper wire causing a problem on the terminal strip the next wire will

go into the terminal marked normally-closed which is the other side of the alarm contacts and our final wire will go into the tamper or tt at the end here which will complete the circuit so there's a raised over here replaces what we had on the old detector well so what we've done here now with this new wiring it's mimicking exactly how the old detector was connected and will give us

the same operation really fit the detector in situation we will do that we showed you the wiring on the bench just made easy now we're actually going to do it actually out on the wall where the detects is actually mounted remember we've pre-drill the hole the back of the detector to accept the coding by Detective because the terminal block is actually removable it actually makes quite easy for us to reconnect the wiring we've already pre

fitted the and align the resistor into the appropriate tunnels on block again just remembering vendor lies a bit dull here to give a bit of a twister to get rid of any DAGs or anything that may be on the code sometimes it's necessary to back the screws off on the terminal blocks otherwise actually sliding nice and hot nice in home we go without connector wires back after you attacker on this particular one we can snap the snap a tunnel block back

into place into the mounting position fitting the excess cabling back into the wall cavity you see then you screw the detector the place of the mounting screws the manuscript may actually end up in a different position from the original detector that's not problem just makes a new hardware as necessary showing amount to detect a nice and firm you don't want the detective water on the in the corner there that will cause

false alarms I don't know now you riff refit the in front of the detector case moving in the right position you'll notice once the detective found in detectable power up and it'll start actually doing it so start doing it walk test my toe to fight off a little tactical sit in that mode for a minute of the side install it's important to walk test it and actually make sure it works properly to means you move around the room walk around each corner rooms

make sure the detector is detecting it's also important to go to the keypad and check to make sure that zone is actually behaving normally keep that as well now you can see that your rear detector has actually sealed and it's going into edit alarm on the keypad this is normal operation after you've taken the time to research and pick the correct sensors for your home they'll give you many many years reliable operation for more information about alarm systems and other things from techno works visit our

website techni works.com au thank you