- [Instructor] Today we're gonna take a look at the TIS
Multifunction ECO tester.
And yes, eco does mean it is reasonably priced
but that doesn't mean you don't get some fantastic features
and a couple of standout ones
that we're gonna highlight in this video.
And in order to do that
I'm gonna carry out the insulation resistance tester
on a circuit that Rick's installed here.
But before we do that
I need to get him to remove all those loads.
Rick, sorry, did you manage to remove all the loads
on that line circuit for me?
- [Rick] I did, yeah.
Removed the lamps, I've turned the light switch on.
However, I've been flicking through (indistinct) three
and it's saying here, if I link together
line and neutral and test to earth should be all right.
- [Instructor] Yeah, but that means we haven't tested
between our live conductors and I trust you Rick
that you've removed all those loads.
But wouldn't it be nice
if your multifunction tester has got your back
in case you've let me down Rick?
- [Rick] Well let's not get into that too much.
What's the biscuit today we've got an Oreo double cream.
- [Instructor] Let's pair up the T.I.S eco.
So press and hold the button.
We've powered it up
and then we can see the test that we can carry out
with the instrument.
They're listed here, which we can scroll
through to the appropriate one, one on that one.
Then we press again, we're back to our original first page
and we're looking at doing that insulation resistance test.
Press the button or enter.
And there it is.
There is our test page.
Now I've got it set already at the bottom here onto auto.
I could have it on this one here, which is a manual test.
So you can do 'em individually
and you've got one there where you can actually
have the time of which you want to carry
out that insulation resistance test for.
So I've got it on auto.
I've also set it here to 500 volts.
That's the test voltage in dc.
I could've been at 250
could've been at a thousand and anywhere in between.
So we can come down
and see the differing values we could have.
We can test it at 500 volts.
And then I've got it here set to what I want it to be
its past value and I've got that as one mega ohm.
Okay, I could have changed that as I scroll through as well.
So if I've got lower than one mega ohm
it will come up as a fail.
But what's really good on this auto test
when I've connected all three leads, it will actually first
of all apply a voltage that starts to climb
between my line and neutral conductors.
And if it detects something's there
it will throttle back that voltage so it doesn't
pass too high a voltage from him and damage it.
In other words, it's a little Rick check.
So if Rick hasn't removed all the loads
it will actually spot that for me
before carrying out the test between line
and protective earth and neutral and protective earth.
So we're gonna see how well Rick's done
about removing those loads.
So I've connected my lead into my MFT eco
and I'm ready to carry out the test.
I've chosen the tip commander lead
cause I can press and start my test
by using this button here
meaning I don't have to take my hands
off in order to press the go button on the machine.
If I want any help, just press this button here
and it shows you my lead are connected
in positions four, three and one.
So when I tip it forward, you can see I'm in four
three and one.
One's the position of that tip commander lead.
I could have used a standard lead like the one just here
but it would've meant I had to press the go button
on the machine in order to carry out the test.
You need to be careful
you need to come out of this screen
press the help button again in order to carry
out the insulation resistance test on the auto mode.
So I'm gonna connect onto my earth bar.
I'm gonna connect onto my neutral connection
and then I'm gonna use the tip commander
in order to start the testing process.
I'm in there on a press and hold this.
You'll hear the machine click.
So press and hold.
The machine is clicked, the test is underway
and we can see at the top we're testing between
our line and neutral first.
Once it's completed the test on that one
it'll come down and do our line protective earth.
And then finally our neutral and protective earth.
So currently testing between line and neutral.
So it's looking to see if Rick's left anything in circuit.
I can see a little light out the corner of my eye flashing.
I'm a little bit worried.
So it's done that first one.
It's dropped down now between line and protective earth
it's brought my voltage straight up now
to my 500 volt test voltage
and it's doing its insulation resistance test.
So it's trying to achieve a reading in mega ohms
and then it'll drop down and do my neutral
and protective earth when it's happy with that one.
So now we're onto the final one.
So it brings up the voltage straight away.
So we're happy with the voltage.
We're testing the correct voltage and we're looking
for the insulation resistance test on the other one.
So we're slightly higher than before.
So there on my, oh not okay.
So we've left summing in circuit.
I'm sure Rick's standing around with a cup
of tea and one hand in a biscuit in the other.
But he hasn't removed all our loads.
But what's really nice is it's actually throttled
back that voltage not to damage that equipment.
But now we can search out the piece of equipment
that's been left in circuit and repeat the test.
- [Rick] What's that over there guys?
- [Instructor] Let's repeat the test again.
Press and hold the button.
We should hear a click and we're underway.
But what's really nice about that first test
about the MFT eco, it held back that voyage
meaning that we didn't damage the LED strip
that Rick forgot to turn off
and the (indistinct) you will have noticed the switches
in the wrong way round.
So up is on and down is off.
Okay, so I'll be having a word
with Rick in the future about that one.
And we can see now with that load being removed
we're cycling through first of all our line and neutral.
Just again checking
that Rick hasn't left anything else in circuit.
Once it's happy with the line and neutral
it will drop down and do line
and protective earth and then neutral and protective earth.
So we've done the first one now.
So it's actually tested over 500 volts
and it has an insulation resistance test reading
of 550 mega ohms.
And now we're onto the second one and we're cycling through.
So I've got my hands in the consumer unit
I'm looking at the screen here.
I'm not had to press any test buttons
on the machine and it's automatically carrying
out the insulation resistance test.
But it's there saving you from making a mistake, isn't it?
From actually leaving a loading circuit.
And here we go.
So we should be able to get our final reading
between our neutral and protective earth.
And hopefully this time he'll say that we've,
oh we're okay this time.
If you also work with the right Rick
maybe it's time to go out and buy a T.I.S MFT ECO tester.
However, if you want to know how to carry
out a two lead earth fault loop impedance using true RMS
check out the video on screen just there.
Rick's left me one.