# Recent Topics

## Reading data from energy meter through Arduino

Dear All, We purchased Elmeasure LG1129, BM5140 and LG5310 series of meter and trying to read its holding register data values using Arduino Mega and RS485 to TTL converter in Arduino IDE but we haven't suceeded. I tested the meter with USB to RS485 using modscan32 software, the software reads holding register data values, but with Arduino IDE it is not happening. Trying from past 2 months pls help me out to resolve this problem## How to set elmeasure Ampere meter reading

Please let me know how to set elmeasure Ampere meter reading with procedures please help me

# Popular Articles

## Explain THD & TDD in power quality.

The total harmonic distortion, or THD, of a signal is a measurement of the harmonic distortion present and is defined as the ratio of the sum of the powers of all harmonic components to the power of the Fundamental frequency. TDD(I) = Total Current ...## Performance Assessment of Power Factor Capacitors.

Voltage effects: Ideally capacitor voltage rating is to match the supply voltage. If the supply voltage is lower, the reactive kVAr produced will be the ratio V1 2 /V2 2 where V1 is the actual supply voltage, V2 is the rated voltage. On the other ...## Article 4.2.1F : Energy reading scaling ( Wh - Kwh - Mwh - Gwh) calculation

Elmeasure meter reads from zero WH and giving the perfect reading ... it is so simple - Meter starts with reading 1,2,3..etc... up to 9999 WH - [ To convert WH to KWH is Divide by 1000] . Example If the reading is 7000, divide it by 1000, It is 7 ...## Article 3.6.1L : How to solve "Value cannot be null. Parameter name: viewinfo" when expanding database.

When expanding database its showing error of " Value cannot be null Parameter name: viewinfo (Microsoft.SqlServer.Management.SqlStudio.Explorer) Kindly follow the below steps: Open Run file using windows key + R Type %Temp% then Hit Enter Key. So ...## Article 2.0.2D : How Arithmetic, vector & vector harmonics are calculated?

Here it is..