VOM

The three measuring device used in electrical circuits.


You are not connected. Please login or register

Reading Scale in Analog Voltmeter

Go to page : 1, 2, 3  Next

Go down  Message [Page 1 of 3]

1 Reading Scale in Analog Voltmeter on Thu Aug 16, 2018 12:58 pm

Admin

avatar
Admin
Reading an Analog Voltmeter

While many modern voltmeters use a digital interface, an older analog voltmeter will still use the older needle-and-graph interface to display amperage, voltage and other readings. This guide will teach you how to read an analog voltmeter.

Step 1 - Determine the Indicator Gap Differential
First you will need to figure out the indicator gap differential. This is the amount that the reading increases between each hash mark on the analog graph scale. You can determine the value of each hash mark by a dividing the number of marks by the difference in the placeholder values. For instance, if there are eight hash marks between 0 and 0.4, the incremental increase of each mark would be 0.05.

Step 2 - Determine the Range Scale
Many voltmeters will come with a range scale that makes working with large or small reading numbers easier. In most cases, you will simply need to multiply the value of the needle's location with the range that is selected. For instance, if you are using your voltmeter to measure resistance, you would multiply the needle reading times the R-value selected on the voltmeter.

Step 3 - Interpret the Reading Results
In order to interpret the reading of the voltmeter accurately, you need to carefully determine the value of the needle on the graph and then multiply it by the selected range setting on your voltmeter. Whether you are measuring for voltage, resistance or continuity, the process is basically the same.

View user profile http://curteneyarellano.forumotion.asia

2 Re: Reading Scale in Analog Voltmeter on Fri Aug 17, 2018 9:13 am

papanicurt


beginner
beginner
Is the analog voltmeter easier and more convenient to use in reading voltages?

View user profile

3 Re: Reading Scale in Analog Voltmeter on Fri Aug 17, 2018 11:21 pm

denden

avatar
guru
guru




if you want a accurate range,easy to use and less hassle to read used a digital voltmeter than analog Very Happy Very Happy

View user profile

4 Re: Reading Scale in Analog Voltmeter on Fri Aug 17, 2018 11:42 pm

denden

avatar
guru
guru
TIPS
we need to be familiarize the parts and functions of each parts so that we can read and get the range value
1. we need to know how to set range in range muliplier
2. we need to know to read in ohmmeter scale
3.we need to check if the pointer of the VOM is in the right position
4. check the test probes if it is working.

View user profile

5 Re: Reading Scale in Analog Voltmeter on Sun Aug 19, 2018 2:18 pm

denden

avatar
guru
guru
TIPS
1. In reading the amount of voltage, always start with the highest range, avoid reading voltage higher than the tester is set to the tester setting.
2. Be sure that the tester is set of the correct range setting: resistance range when measuring the ohms, voltage range when measuring volts and ammeter range when measuring the electric current.
3. When the tester is not in used or will be stored, set the selector switch to 100v or to off position.
4. Never drop the tester

View user profile

6 Re: Reading Scale in Analog Voltmeter on Sun Aug 19, 2018 5:23 pm

It is important to know the type of current before you start the measuring?

View user profile

7 Re: Reading Scale in Analog Voltmeter on Sun Aug 19, 2018 5:27 pm

Yes! because if you do not know the first important rule for measuring voltage you will be taken an accident..

View user profile

8 Re: Reading Scale in Analog Voltmeter on Sun Aug 19, 2018 5:54 pm

Yes! because if you do not know the first important rule for measuring voltage you will be taken an accident..

Why? Because we have are 2 types of current AC or Alternating Current and DC stand for Direct Current..

And also you need to know the different between them...

Alternating Current = has frequency, but no polarity

Direct current = has polarity but no frequency.

Polarity Stand for Positive and the negative..

Frequency is the speed of current..

Example of AC is Outlet
Example of DC is Battery

View user profile

9 Re: Reading Scale in Analog Voltmeter on Sun Aug 19, 2018 6:50 pm

And for the reading of scale..

It is depend upon your range.. Because Every range have the different interval per division..or scale per division..

For AC or DC 10
The interval per division is 0.2

For 50 is 1
For 250 is 5
Then for 1000 we have also 20..

I think it is much better to explain in actual....
Hihihihi..

View user profile

10 Re: Reading Scale in Analog Voltmeter on Sun Aug 19, 2018 9:03 pm

In the range of 1000 are the last range posible to use in voltmeter?

View user profile

11 Re: Reading Scale in Analog Voltmeter on Sun Aug 19, 2018 9:06 pm

they have any different scale of every different voltmeter? It is same scale per division?

View user profile

12 Re: Reading Scale in Analog Voltmeter on Sun Aug 19, 2018 9:11 pm

Why not use it the DC range for measung AC voltage?
What will happen?

View user profile

13 Re: Reading Scale in Analog Voltmeter on Sun Aug 19, 2018 9:24 pm

If the voltmeter are using in a wrong range what could posibly done?

View user profile

14 Re: Reading Scale in Analog Voltmeter on Sun Aug 19, 2018 9:34 pm

You are able to measure the voltage using the voltmeter if you are not to much knowing to read every scale in a volmeter?

View user profile

15 Re: Reading Scale in Analog Voltmeter on Sun Aug 19, 2018 9:37 pm

The scale of Voltmeter are the same scale in VOM or volt, Ohm, mili ammeter?

View user profile

16 Re: Reading Scale in Analog Voltmeter on Sun Aug 19, 2018 9:48 pm

How to determined my voltmeter if its usable or not?

View user profile

17 Re: Reading Scale in Analog Voltmeter on Mon Aug 20, 2018 3:41 pm

RT


guru
guru
Melyssa120504* wrote:How to determined my voltmeter if its usable or not?
The way to determine if it is working or not is to calibrate it first. By the time you calibrate it you will know if you can use it or not.

View user profile

18 Re: Reading Scale in Analog Voltmeter on Mon Aug 20, 2018 3:47 pm

RT


guru
guru
Melyssa120504* wrote:Why not use it the DC range for measuring AC voltage?
What will happen?
It is not possible because direct current is different from alternating current. if you try to use an appropriate range it will result to inaccurate measurement.

View user profile

19 Re: Reading Scale in Analog Voltmeter on Mon Aug 20, 2018 3:52 pm

RT


guru
guru
Melyssa120504* wrote:If the voltmeter are using in a wrong range what could posibly done?
for that all you need to do is to change it with the appropriate range and do the measurement again.

View user profile

20 Re: Reading Scale in Analog Voltmeter on Mon Aug 20, 2018 4:00 pm

RT


guru
guru
Melyssa120504* wrote:You are able to measure the voltage using the voltmeter if you are not  to much knowing to read every scale in a voltmeter?
No because for you to determine the measurement it is necessary to know how to read scale in voltmeter.

View user profile

21 Re: Reading Scale in Analog Voltmeter on Tue Aug 21, 2018 7:02 pm

what is the common error in reading the analog voltmeter?

View user profile

22 yes it is important to get the right reading on Tue Aug 21, 2018 7:05 pm

Melyssa120504* wrote:It is important to know the type of current before you start the measuring?

View user profile

23 Re: Reading Scale in Analog Voltmeter on Tue Aug 21, 2018 7:08 pm

what is the highest range in a voltmeter?

View user profile

24 Re: Reading Scale in Analog Voltmeter on Wed Aug 22, 2018 4:01 pm

How to Check AC Voltage with a Voltmeter

Step 1 - Insert the Probe Leads
Step 2 - Turn on the Voltmeter
Step 3 - Choose the Voltage Selection Option
Step 4 - Test the Voltage

View user profile

25 Re: Reading Scale in Analog Voltmeter on Wed Aug 22, 2018 4:02 pm

Whether digital or analog, a voltmeter is subject to an electrical theory known as Ohm’s Law. Ohm’s Law describes the interrelationships in an electrical circuit.
just saying!

View user profile

Sponsored content


Back to top  Message [Page 1 of 3]

Go to page : 1, 2, 3  Next

Permissions in this forum:
You cannot reply to topics in this forum