I recently bought a 5 m steel tape. It came as surprise that, though I did not have anybody to hold the tape at the other end, the tape end held on to the pipe by itself. The zero correction hook was magnetic.
Any electric or electronic device that is not explosion proof certified is technically not suitable for inside hazardous areas. For the upstream facilities, where crude is the only hydrocarbon service, out here they allow use of a digital camera except that one is not allowed to use the flash. I think this is not to trigger of a flame detector.
Sajit
-----Original Message-----
From: C.Y L [mailto:l_c_y1999@yahoo.com]
Sent: Tuesday, October 19, 2004 7:16 AM
To: PipingDesign@yahoogroups.com
Subject: Re: [PipingDesign] Laser Measuring Devices for Field Work
Hi There, where can I buy this thing? and is it allowed to use in the refinary?
Thanks
Robert liu
Paul Bowers <pbowers@pipingdesign.com> wrote:
Dennie Mosta wrote:
>
> Hi Paul,
>
> For what its worth. a company I used to work had a handheld Laser measuring
device for us our doing field work. It was made, or ay least sold by, the Hilti
company. It was very versatile and accurate. This was three years ago and I
believe the price then was about $650. They have come down, but not enough for
me to afford a good one for personal use. I would love to have one. The only
problems I remember when using it was, even wearing the laser enhancing glasses,
it was sometimes difficult to find the little red dot when using outdoors or a
brightly lighted facility. Also, if you set it on a surface that may be
vibrating from machiney running even little bit, it would be difficut to aim the
red dot where you wanted it Anyway, I found it to be a very useful instrument.
Evidently others found it useful also, you had to reserve it days in advance in
order to get it. With it, I was able to get measurements affecting my design
that I would normally been unable to ac
quire. I
> think it beats the heck out of a steel tape measure.
>
> Dennis
I'm not sure what you mean when you refer to having to wear special glasses, that's completely nerdlike. I wear those all the time.
My experience with these things is that they are really useful (when I'm out in the field I like to depend on myself and not someone else).
Lasing a moving target would seem to be a bad idea and I wouldn't expect that to reflect reality. My experience with these things is that those that have access to them tend to jealously guard them.
One problem I've always seen when doing field work is communicating to the other end of the tape measure. And yes, I've "trogolyted" with a transit for elevation, that's never been the problem. Now that I recall it, I probably have forgotten.
Paul
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[Non-text portions of this message have been removed] Received on Tue Oct 19 00:06:00 2004
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