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Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => AC Power and Grounding => Topic started by: Frank DeWitt on February 14, 2020, 09:48:50 am

Title: How to hold three probes
Post by: Frank DeWitt on February 14, 2020, 09:48:50 am
How do you measure 3 phase 440 with one hand?
(https://i.ebayimg.com/images/g/2NYAAOSw48ZeBRJr/s-l1600.jpg)

(https://i.ebayimg.com/images/g/fDEAAOSwz5peBRJR/s-l1600.jpg)

Title: Re: How to hold three probes
Post by: Tim McCulloch on February 14, 2020, 09:52:58 am
I want a prehensile tail with an opposable thumb....
Title: Re: How to hold three probes
Post by: Ike Zimbel on February 14, 2020, 10:56:26 am
How do you measure 3 phase 440 with one hand?
(https://i.ebayimg.com/images/g/2NYAAOSw48ZeBRJr/s-l1600.jpg)

(https://i.ebayimg.com/images/g/fDEAAOSwz5peBRJR/s-l1600.jpg)
Very, very, carefully! (I seem to recall that was the punchline to some joke when I was a kid, but can't remember the set-up :-[)
Title: Re: How to hold three probes
Post by: Frank DeWitt on February 14, 2020, 11:31:43 am
Apparently arc flash was not a problem back then? 
Title: Re: How to hold three probes
Post by: John Roberts {JR} on February 14, 2020, 11:44:02 am
That looks like an accident waiting to happen... danger Will Robinson.

JR
Title: Re: How to hold three probes
Post by: Chris Hindle on February 14, 2020, 12:17:41 pm
How do you measure 3 phase 440 with one hand?
I dunno. That's my Lampie's problem  ;D

Ya, that's a nasty shock (or worse) just waiting to happen...
Chris.
Title: Re: How to hold three probes
Post by: Jonathan Johnson on February 14, 2020, 05:06:44 pm
How do you measure 3 phase 440 with one hand?

The question answers itself.

With one hand (and the other safely behind your back).
Title: Re: How to hold three probes
Post by: Stephen Swaffer on February 14, 2020, 05:55:27 pm
I have to ask-how is this wired internally?
Title: Re: How to hold three probes
Post by: Steve-White on February 14, 2020, 06:13:05 pm
One leg at a time very carefully.
Title: Re: How to hold three probes
Post by: Frank DeWitt on February 14, 2020, 06:35:13 pm
I have to ask-how is this wired internally?

I donít know but the directions say that you connect the red and green, then add the black and the meter will go up for one rotation direction and down for the other.
Title: Re: How to hold three probes
Post by: Dave Garoutte on February 14, 2020, 07:07:07 pm
Very, very, carefully! (I seem to recall that was the punchline to some joke when I was a kid, but can't remember the set-up :-[)

How do porcupines make love?
Title: Re: How to hold three probes
Post by: Ike Zimbel on February 14, 2020, 07:54:10 pm
How do porcupines make love?
Ah! Dave for the point!