model: sanwa Yx-360TRD
made in japan
2007-09-13 04:11:22 · 7 answers · asked by 'Ya 1 in Science & Mathematics ➔ Engineering
Technically no but as stated above you can swop the leads this is assuming the voltage will never become positive again without swopping them back.
Analogue meters are available with a centre zero to measure both directions but these tend to be dedicated meters and not multimeters.
No-one seems interested in analogue meters these days but actually they can be much easier to read. people make the mistake of believing the digital meter is more accurate because the number it gives them appears that way.
2007-09-13 08:57:42 · answer #1 · answered by Poor one 6 · 1⤊ 1⤋
Any circuit that measures 0-5 volts can be a circuit that measures -5 to 0 volts, or really any 5V range you desire. It's just a question of where you reference the circuit. If the bottom "rail" of the circuit is connected to ground or 0V, then the circuit will measure 0-5V. If that same supply rail is connected to the negative terminal of a 5V battery or power supply and the positive terminal of that battery or supply is connected to ground or 0V, then the circuit will measure -5 to 0 volts. The circuit doesn't know or care what it's absolute voltage is, it just cares what's happening between its terminals, or the voltage DIFFERENCE between it's two supply terminals. As long as it has the right voltage between it's supply terminals or rails it's happy. I can take that same circuit and connect it's negative supply rail to -1000V and now the circuit will measure -1000 to -995V. If you want the output to read a negative voltage it's a matter of just changing the display to show a dash in front of the numbers.
2016-04-04 18:45:54 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Yes. It goes upscale when the positive lead is on the positive supply. Just put the negative there instead and it will read upscale on the negative voltage.
Avoiding those kind of nuisances is why auto-ranging Digital Multimeters are so popular.
2007-09-13 04:28:39 · answer #3 · answered by Rich Z 7 · 0⤊ 0⤋
of course
can a piece of string measure the distance from the table to the floor
and then the distance from the table to the ceiling
in one instance the black terminal is connected to the table (to measure "up")
and in the other you connect the red terminal to the table
(to measure "down")
2007-09-13 13:13:01 · answer #4 · answered by Anonymous · 0⤊ 0⤋
What he said, above... just swap the test leads, and read the meter as a "minus" value.
.
2007-09-13 04:19:23 · answer #5 · answered by tlbs101 7 · 0⤊ 0⤋
If you don't know the answer to that, I suggest you stay away from live wires.
2007-09-13 05:08:40 · answer #6 · answered by Ben O 6 · 1⤊ 1⤋
ofcourse, just turn swap the + and the -.
2007-09-13 04:16:07 · answer #7 · answered by gjmb1960 7 · 0⤊ 0⤋