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Changzhou Tonghui Electronic Co., Ltd.
Tonghui Power Meter TH3311 Series

Tonghui Power Meter TH3311 Series

Product catalog summary

Overview
The document describes the features and specifications of a digital power meter series, highlighting its capabilities in measuring and analyzing electrical parameters for various applications.

Features

Equipped with a 24-bit color 4.3-inch LCD screen supporting English and Chinese interfaces.
Utilizes PLL technology for faster measurement speeds.
Capable of both AC and DC testing with a wide current measurement range.
Displays input signal waveforms for voltage and current, either simultaneously or separately.
Offers high measurement accuracy and fast data update rates.
Includes multiple display modes such as traditional four-window and full parameter full screen displays.
Supports higher frequency test ranges and wider frequency responses.
Provides multiple harmonic analysis display modes including list and histogram modes.
Features a data record function.

Applications

Appliances: Suitable for testing power efficiency in TVs, refrigerators, air conditioners, washing machines, vacuum cleaners, and water heaters.
Industry: Applicable for testing electric machinery, motors, transformers, chargers, and other power equipment.
Lighting: Used for testing lighting appliances and LED lamps.
New Energy: Suitable for testing photovoltaic modules, electric vehicles, and wind power systems.

Specifications

Models: TH3311, TH3312, TH3321, TH3331.
Display: 4.3-inch color TFT display.
Connection Mode: Single phase.
Basic Features: Supports AC, DC, precise measurements, micro and wide current measurements, harmonic analysis, and power tests.
Display Modes: Data, oscillogram, and harmonic histogram.
Basic Accuracy: 0.15% reading + 0.2% range + 1 digit.
Voltage Range: 5V-600V with a resolution of 0.01V.
Current Range: Various ranges with minimum resolutions of 1mA or 1uA.
Power Range: 0.01W-24kW with minimum resolutions of 0.01W or 0.001mW.
Frequency Range: DC/45Hz-400Hz with a bandwidth of 21kHz and a minimum resolution of 0.01Hz.
Power Factor Range: 0.001-1.000 with a minimum resolution of 0.001.
Harmonic Analysis Accuracy: ± (5% of reading + 0.3% of range).
Power Integral Range: 0-99999kWh with a resolution of 0.001Wh.
Power Timing Range: 0-9999:59:59 with a resolution of 1s.
Measurement Speed: 3 times/sec for DC, 2 times/sec with harmonic function on.
Lock Function: Data lock with AUTO/MAN range mode.
Input Impedance: ≥ 1MΩ for all voltage profiles.
Comparator Limit: Sound and light alarm.
Output: Relay output.
Communication Interface: RS232C/RS485, USB DEVICE, USB HOST, HANDLER.
Storage: USB waveforms and set files.

Catalog excerpts

C. ITH3311 Series Digital Power Meter Features ■ 24-bit color 4.3-inch 480 x 272 color LCD screen, English and Chinese interface ■ PLL (phase-locked loop) technology, faster measurement speed ■ AC and DC test ■ Wide current measurement range ■ Input signal waveform display: Voltage and current can be displayed simultaneously or separately ■ Higher measurement accuracy and faster data update rate ■ Rich display mode: Traditional four-window display Full parameter full screen display ■ Higher frequency test range and wider frequency response ■ Multiple harmonic analysis display modes: List mode,Histogram ■ Data Record Function Application ■ Appliances TV, refrigerator, air conditioner, washing machines, vacuum cleaners, water heaters and other power efficiency testing ■ Industry Electric machinery, motor, transformer, charger, power and other power test

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