Electric Energy Meter
Electric Energy Meter
An electric meter, or energy meter, is a device that measures the amount of electric energy consumed by a building, tenant space, or electrically powered equipment, also known as watt hour meter and kilowatt hour meter,
When using the electric energy meter, it should be noted that the electric energy meter can be directly connected to the circuit for measurement under the condition of low voltage (no more than 500 volts) and small current (tens of AMPS). Under the condition of high voltage or large current, the electric energy meter cannot be directly connected to the Circuit, and it needs to be used with a voltage transformer or current transformer.
HTW, has been focused on the testing and certification services in an early time, and we were certified as an IECEE CBTL. All these ensure our efficiency and accurate testing and certification capability.
Certification Services We Offer
Standards We Test To
Test Items (Safety)
Input Current Test
Label Wiping Test
Energy Level Test
SELV Test
Current-Limiting Circuit Test (LCC)
Power-Limiting Test (LPS)
Ground Continuity Test
Temperature And Humidity Test
Drop
Impact And Other Mechanical Stress Tests
Ball Pressure Test
Normal Temperature Rise Test
Touch Voltage
Touch Current Test
Withstand Voltage Insulation Test
Abnormal Test
Component Failure Test, etc.
Test Items (EMC)
Conduction Test
Radiation Test
Harmonics Test
Voltage Fluctuations And Flicker Test
Static Electricity Test
RS Test
EFT Test
Surge Test
CS Test
Power Frequency Magnetic Field Test
Voltage Sag Test, etc.
Test Items (others)
MID
HTW Qualifications
CMA, CNAS (17025), AQSIQ, IEC CBTL, US UL, A2LA, FCC, TIMCO, CEC, DOE, Germany TUV, EMCC, Japan VCCI, Norway DNV, NEMKO, UK ITS, Canada IC, Hong Kong EMSD and other qualifications have been obtained.
Experience In Testing Process
1. the reason of radiation test failed
There are many reasons for EMC radiation tests failed according to the standard, such as interface filtering, cable design, grounding, shielding etc.
Generally speaking, it is the problem of PCB design.
For TCB, a multilayer board is a recommended choice, as it can reduce impedance.
The circuit on the PCB board is required to be straight and short.
2. the problems of product information
Label, Schematic, User manual, CDF/BOM, PCB layout
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We're based in China but regularly work with clients globally.
Our Business Hours:
Monday - Friday
8.30am - 5.00pm in CST (UTC/GMT+08:00)
HTW Testing and Certification Solutions.
ENERGY METERS
ENERGY METER CALCULATORS
WATER METERS & ACCESSORIES
GAS METERS
OIL & ELECTRICITY METERS
range of compact energy meters intended for measuring energy consumption in heating applications for billing purposes.