we're back on site at a commercial three-phase installation of our CTEK EV charger and you can
see behind us it's nearly completed if you haven't checked out the previous videos i'll leave a link
for those in the description below this time i'm joined by Steve from TIS and you seem to have a
mystery box there what's inside our mystery box yes Gary we've brought our TIS MFT Pro
today with our TIS EV test 100 to fully test this CTEK EV charging station okay that sounds
really complicated i'd love to step in and start obviously using the tester but it's your ear Steve
i'm going to put you to work and for the keen eyed amongst us you will have seen Ross in the
background someone we like to call the Bez of the electrical industry no doubt it'll be out with
maracas at some point and as it's rather cold Steve i'm going to join you with a woolly hat
let's do a bit of testing shall we yep well it's not often you get walked through by somebody who
really understands the tester Ross is it so we're in a great position here Steve gone and
start us off what we're going to do first so we're going to turn the instrument on this is our TIS
MFT Pro it's the Pro Plus would it be the same on the Pro the Pro Plus won't do a three and a four
wired earth electrode test other than that the MFT Pro and Pro Plus are exactly the same Gary
and we don't need that test for this so it does exactly the same test so if you're watching this
and you've got the Pro and not the Pro Plus this will also help you then so what screen do we go to
first yeah so on the third page you can see we've got the evsc test icon okay so we click on the
evsc icon and basically what it's asking us to do now in this bottom left-hand corner is set up the
evsc charger that we're actually installed today right so we've got to select the ampere rating of
it as well as it's vented and invented that really means has got a fan built into it or has it not is
that great correct yeah okay so what we set to at the minute yeah so we've got it set to three phase
we've got it set to non-ventilated and this is a 32 amp installation so we've got it set to 32 amp
and we can tick that box to confirm that evse is all set up correctly when we press go on the MFT
Pro you'll see now it's brought up a screen to actually set up the first testing procedure so
the first test being continuity test we're not talking about doing a continuity of the CPC test
correct which me and Ross did in a separate video this is proving the continuity of the
charging unit itself correct okay so the leads are set out there for me so i've got a bit of a
help desk which is what i like so are you going to put the leads in and just show us where we're
going yep so you'll see this is the tester on here and it's saying put my black lead into B1
on the tester yeah and on B4 of the tester which we've done there okay and it's asking for the B4
lead to go to the pe in the EV adapter okay yeah i can see that and you'll see that the B1 lead is
referencing to earth okay so we've got an earth reference so it's slightly different on our EV
this time is because we're going to just have to open it up for a reference earth
correct so if i step into here and unlock it and i just drop down my CTEK charging unit
now some things for you people there's already a barrier here to stop me touching any live parts
the reason we can drop it down when in use not necessary for doing this test is the fact that
we've got our two energy meters as well as our 2 x 32 amp breakers and it might be a case of
somebody of lesser skill than electrician needs to come along and obviously read the meter or reset a
breaker i know we can pick a reference to earth up off this bolt here for this first continuity
test so Steve if you want to pass me the lead yep just want to say as well Gary on the actual dials
on here as well you see this is flashing so it's asking us to make sure that the PP is set to NC
the CP state is set to A and there's no fault status on the adapter as well and we've done the
lead configuration and so when it is flashing it means i must do or check something is that
correct exactly okay so we've checked those so i'm ready just to probe on to my reference earth yep
like so so we tick the box and then we press go and hold for half a second okay continuity
test is good 0.08 okay i'll just reiterate that for everyone that is not the continuity of the
protective conductor from the charger all the way back to the installation it's a continuity test
of the actual EV charger itself so i can put the cover back up now can i yes you can get it yep
covers back on then Steve so i shouldn't have to go back in there again now we've done the
continuity test what's the next test yeah so we saved that result okay and now we're on to
the insulation test um which is the next in the sequence we can see this is flashing again so the
dials remain the same PP NC CP A and fault status okay the only change is that we now introduce
a new lead so we've got three leads and this is the only time Gary that we change the leads from a
continuity once we've done this lead configuration we never touch them again okay so that was
flashing red indicates to me as the user i must change something you're saying it's add another
lead yeah so once we've added that lead in the rest of the tests same leads same configuration
yep so you can see here now that the actual leads in the tester is asking us to introduce the green
lead into B3 okay yeah and it's asking for that to go into the PE on the adapter okay so moving the
lead across the blue lead which is in B4 into the neutral lead of the adapter which i can see there
B4 now goes into neutral yeah and the B1 lead that went for reference for earth is asking for that to
go into L1 Gary okay so that was the one that i was just probing onto the unit itself correct
we've got all those leads in the correct place okay and now we can move on is that right no just
again insulation test it's the insulation test of the CTEK EV charger itself and not an insulation
resistance test which me and Ross performed in a different video yep so we tick the box you
can see now that i actually set up the tester to perform 100 volt test Gary we would normally
test an insulation at 500 volts or 250 volts okay but from my uh experience of going around the UK
um with the CTEK it can be quite quite sensitive and so we reduce the voltage to 100 volts okay
so it's set to 100 can you show me how i would change that setting yep so we click on there okay
so there's the 250 and 500 and i've set it to 100 volts once you've set it 100 volts tick the box
and it's ready to do the 100 volt test so i would probably check with the manufacturer i could be
testing this at maybe 500 i could do 250 but you know through experience this one is tested at 100
volts correct that's a great piece of information for us so next yep so it's ready to do the test
it'll do the first phase all right so as i look at that that's between the line L1 on here and
protective earth and that's give me the green thumbs up yep okay so we save the result you'll
now see that it's asking me to move the Blead that was attached to L1 it's asking me to move it to L2
and again a little cross reference for me the section down here is flashing so i must have
to do something yep correct just simply move the lead yep so we tick the box the test is automatic
okay so that's good same result
okay so again save the result you'll see now it's asking me to move it over to L3
tick the box and we test this one will it continue on and do the next test as well
it will do that automatically okay so we've got the full set of tests
and this will be the final one and there we go so is that passed yes ah we've got a green thumbs up
again i like that nice little visual indicator yeah so we save that result so Steve's in full
flow i just want to interject at this stage and think about that continuity and insulation test
it's really really important say for a tethered unit we know those leads lay along the floor they
get run over and all the rest of it and that test from the tethered lead to the actual unit itself
would prove continuity and installation of that test so i would suggest maybe if it's an
untethered unit then you actually ask the customer for their lead and perform the test on the end
and then you make sure you have that continuity of that lead and the insulation is good as well
and it moves on to the next sequence which is a status check you'll see that that's solid
blue gallery which means that there's nothing to change on the dials okay so as i look at it here
i'm gonna do nothing here i'm just gonna press another button button and to get that status
power just Gary that wants to be an elbow okay so we're off to L1 so there was a small change
even though that was blue we needed to move that lead across correct okay so we're across now to
L1 and status show just just describe to me what we mean by doing a status check yeah so this
status check at the minute everything in this uh evs charge should be dead so it shouldn't be
delivering a voltage and it shouldn't be living a current um because the car is not asking for
anything so there's nothing plugged in at all okay when you say nothing's plugged in we're
plugged in here yeah what do you mean by not plugged in uh the car's not plugged in so the
car's not plugged actually plugged into the car so the car's not asking for a charge it's not ready
to charge or anything like that everything should be dead okay so effectively nothing
coming out of those terminals that are in here correct okay i like that one so we tick the box
a small voltage of pilot voltage no current being delivered and no voltage being delivered
so the pod at this minute is completely so if i was to lift this flap up and somehow be able to
ram my fingers into here yep i wouldn't receive an electric shock would i correct because it is
not doing anything yeah okay next test so we saved the result you'll see now Gary that's
the only thing that's flashing is the CPB and PP to 32 amp so we move the PP state to 32 amps
and we move the CP state to B so just to confirm to everyone the 32 amps is because the size of the
over current protection device feeding here was one of the 32s hence we're under 32 amps correct
the tester also confirms that the pin should have dropped
in the evse charger at this point i shouldn't be able to pull the plug out and i can okay yeah
tick the box okay it shouldn't be showing any voltage but if the car so the car now
is plugged in but not asking for a charge and it will deliver 31 amps of current so so let's think
of this logically i've plugged in maybe overnight i'm waiting for a low tariff to kick in or
my app to suggest that i needed to charge at any point so i'm waiting for that to happen
i'm plugged in i'm locked into position and i'm ready to draw the current but i'm not ready
yet because it isn't on the cheap tariff correct okay that's good so save the result you'll see
now that the only thing flashing on the screen is uh to move it to CPC so we'll leave the 32
we'll leave the 32 just doing this one here yep so move that to c and now the car is actually
asking for a charge you'll see that the EV adapter all the three lights have illuminated
and the tester will confirm that it's delivering voltage and current okay and as i look at the
CTEK EV charger that's pulsing blue so that is suggesting it's charging correct okay so
we've mimicked the charging process and that is underway yes okay so we saved the result
now it moves on to the fault status so it's flashing fault PE so it's asking us to put
an earth fault onto the system to see what the charger does so that means we have to change one
of the buttons okay so we move the fault status at the bottom to fault PE we can see that the lights
have gone out okay but the tester would also confirm that it's not delivering a voltage at
all so that's tripped out yep it's taken the evse charger out so it's killed the voltage that we saw
on the previous test so it's not delivering no voltage okay so the earth fault as well so it's
disconnected yep that's that's good is there one more to go yep so we serve the result it's
now asking to put an electrical fault so there could be an electrical fault with the car and we
don't want to send a charge and again the lights haven't illuminated but the tester will confirm
that there's no voltage and no current being delivered to the car we need to move the dial
back to A to reset the pods from the fault status that was currently on before and we see it's got a
fault status on the CTEK EV charge we've got this red cross so we're looking for that to be removed
so we're now back we've lost our red cross which was for the fault states that we had
in the previous two tests correct we've got a is that pulsating so we're suggesting we're charging
is that correct that's correct okay and we're illuminated back on the EV adapter as well okay
so now it's a the next status is a loop impedance test loop impedance so yeah
so this is full circuit a fault loop impedance correct unlike the other test that we described
that weren't this is going to do that full test and we're going to need to compare it
for disconnection etc of the overcurrent protection device yep press and hold go
we get PSC PFC live to neutral and live to earth on the push of one button just takes a moment for
those results to come through so we're saying the circuit impedance there is 0.15 ohms that's right
okay so we'd need to check that against the overcurrent protection device correct and then
work out whether it's acceptable or not see the result we now move on to a 30 milliamp type A
ramp test as you can see Gary that was stirred solid blue so there's nothing to change from
the previous test so this one stays exactly as we are we're just going to do that ramp just
so the A type ramp test just describe to me what it's going to do now
there's is an A type device with inside the evsa charging station there is so hopefully we're not
going to trip anything behind it we're going to trip what's inside the evc charger so we're
going to get the time as it brings up that current okay that ramp test so we've got voltage present
so it's not like any an ordinary RCD it's gone out at 7.5 milliamps but it's gone out
113 milliseconds and we've heard the evse charging station it's tripped with inside there not what's
behind it so we've disconnected the RCD element within the CTEK EV charger correct okay save
the result a warning message comes on the MFT Pro and to reset the RCD in the evse charging station
and we do that by going back on our CP state to here so we've gone back to A here and we
can see on here we've lost the fault status yes okay and we're ready to go again and we need to
move it back to C so it's back charging again and again we've got that pulsating
battery symbol saying it's charging our EV adapter is now saying it's live correct you'll see on the
tester at the bottom here Gary that it says DD six milliamp okay so most evse charging stations
don't put a type B RCD inside one's because it'd be too expensive yes and also twice the size
so i'm also using RDCDD yes which is a residual direct current detecting device
and you'll see on the MFT Pro if you have got the type B you've got the option but also we've
got it set to the DD setting and this is now going to suggest when he's putting up to six
milliamps of DC into it is it going to get it to disconnect isn't it because we don't
want to put more than six milliamps of dc onto the A type RCD that's within our unit correct
press and hold to go so we're gonna put some DC into it you'll see with a DD test it's very
different from a normal ramp test and it goes a lot slower okay so this is pulsing DC into
our device and at some point we expect below six milliamps for it to actually disconnect
the circuit so we're watching for this to be disconnected yeah slowly comes up ah there we go
okay so we've gone in default mode this means we've disconnected it we put 4.5 milliamps of
DC correct to it and then we've got it to trip out yeah really good say the result and Gary
that's the end of the evse test sequence using the MFT Pro it's now brought up a menu so we can
actually go in and we could call this um wherever we're working and you can serve that to the MFT
Pro and then download them results that we've just done earlier today that was incredibly easy Steve
we ticked the box and there is number 30 stored in the MFT Pro ready to download
on behalf of me everyone at the team at eFIXX and hopefully the viewers Steve you made that
incredibly simple process for everyone to follow thank you however let's say we're on site and
we do get stuck and we've watched the video and we're still unsure of how to carry out the test
what other help can you provide us with yeah we've got our technical team on one two seven
four seven five two four zero seven should just give us a ring and we'll help you out
okay we're also going to leave a link in the description for the tester
so if you've enjoyed this video and you want to nip out and get yourself one of these it'll be
in that description in order that you can do so but until next time Steve thank you ever so much