Maker Pro
Maker Pro

Purchasing a new high end multimeter

T

The Phantom

Jan 1, 1970
0
Also, TPI make an RS232 meter for around $160:
http://www.kilowattclassroom.com/Equip183.htm
Nothing really exciting there though.

Although after seeing this 6 1/2 digit hand held baby with 128KB of
sample memory, no other meter will be good enough!:
http://www.gossenmetrawatt.com/english/produkte/metrahit30m.htm

This one:
http://www.gossenmetrawatt.com/english/produkte/metrahi2.htm
has 100 hour battery life, 310,000 count display, goes for US$685 with a
distributor in Tacoma.

This one:
http://www.gossenmetrawatt.com/english/produkte/metrahi1.htm
also measures power and energy (kWh), goes for US$865.
 
D

David L. Jones

Jan 1, 1970
0
The discussion was about field applications, dumbass.

Do lots of field work out in wide open sunshine for hours on end do
you?
Better remember to take it out of your toolbox and put it on your car
dashboard for the drive to and from the "field" to give it some sun,
but of course it would charge quicker if you simply pluged it into the
cigarette lighter socket anyway.

Figured out how to avoid changing the rechargable batteries when they
wear out yet?

Dave :)
 
E

ehsjr

Jan 1, 1970
0
krw said:
Wrong. A radiant heater is far more spotty heat.

Complete baloney. A radiant heater is much larger than
a light bulb at the same wattage. It radiates at a lower
temperature over a wider area than a light bulb for the
same amount of heat energy. It is far *less* spotty
than a light bulb.
The side of the
body towards the heater is warmer than the side opposite.
Sometimes this is wanted (sitting in front of a fire), sometimes
not. Why do you think we use convection heat in homes rather than
radiant heat ("radiators are really "convectors")?

My entire home is radiant heated. Gas boiler, hot water
in pipes embedded in concrete slab, radiant in the
ceilings in the second story. Try again.
Then it's not better, unless one wants it "lower down".

Sure is - look at the heat loss through the ceilng
described below.
Oh, *that's* why we use we use convection heat to heat out homes
rather than radiant heat ("radiators are really "convectors")?

You're arguing against yourself! A light bulb heating
a room is radiant. But in any event, we use several
different kinds of heating to heat our homes, radiant
being one of them. You can go argue your point with
the U.S. Department of Energy
http://www.eere.energy.gov/consumer/your_home/space_heating_cooling/index.cfm/mytopic=12590

There's a nice article there on radiant heating.
In short, you're just as stupid a Dimbulb!

Ad hominum noted, and also noted is the non response
to the thermodynamic issue. Thank you for demonstrating
my point: DM was right that 100% of the energy used
by a light bulb is not converted to heat within a room,
and the thread became an ad hominum mudbath.

Ed
 
K

krw

Jan 1, 1970
0
They are meant to heat AIR. They are meant to cause a flow through
them to optimize their capacity to heat air.


I see you haven't learned anything in a couple of years. Radiant
heaters are *NOT* intended to heat air. They are intended to heat
objects by *radiation*, not air by convection).
You're an idiot if you think a 100W light bulb can heat a room
faster than a properly configured 100W heater.
You're just too stupid for words.
 
K

krw

Jan 1, 1970
0
Complete baloney. A radiant heater is much larger than
a light bulb at the same wattage. It radiates at a lower
temperature over a wider area than a light bulb for the
same amount of heat energy. It is far *less* spotty
than a light bulb.

It still heats mostly by infrared radiation, thus thends to heat
what is toward it, rather than the air. radiation <> convection.

The fact is that given the same power all sorts of heaters will
heat the (closed) room identically (which was and is the argument).
Whether one is "better" than another is quite subjective and
application dependant.
My entire home is radiant heated. Gas boiler, hot water
in pipes embedded in concrete slab, radiant in the
ceilings in the second story. Try again.

It may be called "radiant heat" but it's not. It's convection
heated. 180F water doesn't radiate much heat. I assume you do
have a thermostat to regulate the *temperature*.

You really did take your Dimbulb pills this week!
Sure is - look at the heat loss through the ceilng
described below.

Heat loss through the ceiling is *greater*. You know, convection,
hot air, and all that?
You're arguing against yourself!

No, you aren't listening (there are those dimbulb pills at work).
"Better" is subjective. The *FUCKING FACT* is that a 100W
lightbulb will heat a room *EXACTLY* the same as a 100W radiant
heater or 100W convection heater, or 100W television set.
A light bulb heating
a room is radiant.

Ever put your hand above one? THere is a lot of convection gong on
there too.
But in any event, we use several
different kinds of heating to heat our homes, radiant
being one of them. You can go argue your point with
the U.S. Department of Energy
http://www.eere.energy.gov/consumer/your_home/space_heating_cooling/index.cfm/mytopic=12590

There's a nice article there on radiant heating.

Thay call those things along the floor "radiators" too. They most
certainly do not heat primarily by radiation.
Ad hominum noted, and also noted is the non response
to the thermodynamic issue. Thank you for demonstrating
my point: DM was right that 100% of the energy used
by a light bulb is not converted to heat within a room,
and the thread became an ad hominum mudbath.

WHen you say that 100W isn't 100W, you just claimed into bed with
the dumbfuck Dimbu;b. Sorry, your choice.
 
M

MassiveProng

Jan 1, 1970
0
I see you haven't learned anything in a couple of years. Radiant
heaters are *NOT* intended to heat air.

Yes, they are. AS they RADIATE out into the room, they ALSO have an
air current flowing UP through them across the element(s). Said
current gets heated.

You can squirm all you want. You are still wrong. Room A heats
faster than room B and the final temp of the room may even be hotter
after fully settling in. Very likely so.

You may know about currents and flows and the like in electronics,
but in this realm, you are either completely lost, or you refuse to
admit the facts. Nixon had that problem too. That one cost us
another 5500 souls.
 
K

krw

Jan 1, 1970
0
Yes, they are. AS they RADIATE out into the room, they ALSO have an
air current flowing UP through them across the element(s). Said
current gets heated.

You can squirm all you want. You are still wrong. Room A heats
faster than room B and the final temp of the room may even be hotter
after fully settling in. Very likely so.

You may know about currents and flows and the like in electronics,
but in this realm, you are either completely lost, or you refuse to
admit the facts. Nixon had that problem too. That one cost us
another 5500 souls.

Dimbulb, you're just too stupid for words.
 
J

joseph2k

Jan 1, 1970
0
MassiveProng said:
I have to confess that I looked at the Protek 6800. ;-)
]
LOOK FOLKS! The retard does an about face!
At $200 it's not
too shabby looking with 80,000 counts.

Not too shabby? You are, however.
The dismal 36 hour battery life
really bites though. The dealbreaker (aside from the battery life) is the
1uA resolution on current measurements. Everything else looked pretty
good.

Like you could make a better instrument.

Wow, like you could make an instrument nearly that good.
 
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