Insulation resistance test

[simbin]

Hi. Has anyone had a problem with a Megger MFT1552 with regards to insulation resistance testing? All if a sudden mine won't work & displays 500mA. I've tried a couple of new fuses but still nothing. Everything else works fine....

 

[trev]

Is it due a calibration?

Should probably add that I'm not familiar with the tester

 

[Kate]

What setting are you on? Mine refuses to test at 1000v.

 

[Octopus]

what happens when you try and use it on an "odd" piece of cable rather than an installation?

 

[simbin]

It's been calibrated a month ago. It won't work on any of the settings (250,500 or 1000). Tried it on cable ends, also just pressing the button with no leads in.

 

[Hawkmoon]

I vaguely remember fuse rating (meter or test leads) being 500mA - could this be a fault code indicating a blown fuse, perhaps in leads? Though as Trev, I don't know this MFT

 

[SPARTYKUS]

Got that one, never skipped a beat, but as said would put a tenner on it being a fuse

 

[Kate]

Ive blown a few fuses (one today :/ ) symbol is square with line through. U sure you have bought correct fuses? Does manual say? I know where mine is if you have lost yours

 

[Kate]

Dont 'like' it lol.

Fuses are expensive pmsl.

 

[SPARTYKUS]

Lol. I thought you meant an MFT fuse Kate

 

[Englishman]

Hi. Has anyone had a problem with a Megger MFT1552 with regards to insulation resistance testing? All if a sudden mine won't work & displays 500mA. I've tried a couple of new fuses but still nothing. Everything else works fine....

Mine was calibrated a month or so back and kept doing it for a couple of days but has been fine since. Just kept turning it off and then back on.

Replaced the fuse back in the summer so nothing wrong with that.

 

[Kate]

Lol. I thought you meant an MFT fuse Kate

Yea I did. Was a tenner for ten. I was joking

 

[Hawkmoon]

The likes (mine anyway) are for your gutsy admission that you blew a fuse - to err is human lol

 

[trev]

Yea I did. Was a tenner for ten. I was joking

A quid a pop.

 

[Kate]

Have u checked the batteries??? My MFT goes mental if batteries are low. Must use some juice for insulation resistance. I usually get the sine wave symbol when batteries are getting low

 

[Kate]

The likes (mine anyway) are for your gutsy admission that you blew a fuse - to err is human lol

Didnt blow any for 2years...minion blew the first one his first week...think theres been 4since between us both.

Hell I dont care. Is only a fuse....actually I meant im just checking the interior fuses of the MFT function correctly under fault its all done purposefully of course!! Lol

 

[micknew]

Phone Megger technical on 01304502238 in the morning, they'll tell you straight away.

 

[trev]

Was just about to ask if they had a helpline. Is that great minds think alike Mick, or the other bit?

 

[micknew]

Yes Trev great mind think alike.
I've phoned them loads of times, they are so helpful.

 

[Hawkmoon]

Didnt blow any for 2years...minion blew the first one his first week...think theres been 4since between us both.

Hell I dont care. Is only a fuse....actually I meant im just checking the interior fuses of the MFT function correctly under fault its all done purposefully of course!! Lol

Blown a few myself - in fact once (stupidly) connected 400V supply to 230V contactor coil - it made an odd sound when I switched on, bit like a hammer hitting a sheet of plasterboard lol - motor didn't run very well after that, in fact not at all

 

[Kate]

now thats impressive. I just forget to change setting on tester from continuity to loop test.

 

[guest119]

Phone Megger technical on 01304502238 in the morning, they'll tell you straight away.

First thing they will ask you is if you are a Electrical Trainee!

Boydy

 

[trev]

First thing they will ask you is if you are a Electrical Trainee!

Boydy

Surely the question is irrelevant, you own their product and have a problem with it that you can't answer. They're duty bound to give an answer imho.

 

[micknew]

First thing they will ask you is if you are a Electrical Trainee!

Boydy

Bet they don't, that's not their concern (strange comment).

 

[guest119]

It was humour Trev, perhaps a missing smiley :cheesy:.

boydy