The Tonghui TH2838 LCR meter offers 20 Hz-2 MHz with auto-balance bridge technology and 0.05 % accuracy.
Volume discounts on request!
€607.00 Net
€722.33 incl. VAT
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Währung
Delivery time: 1-2 weeks
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- 2 year guarantee
Description
The TH3300 series includes single-phase digital power meters (TH3311, TH3312, TH3321, TH3331) with 4.3″ colour TFT display, fast DSP-based measurements of AC/DC quantities, power and energy integration, optionally with harmonic analysis and various current ranges for micro to large currents.Features
- 4.3″ 24-bit colour TFT LCD with English/Chinese user interface and numeric keypad/button operation
- True RMS measurement of voltage and current, selectable AC/DC component; measurement of power (P), apparent power (VA), reactive power (VAR), power factor, frequency, peak and peak values, energy (kWh)
- Automatic/manual measuring range: 4 voltage ranges (75/150/300/600 V) and 7-8 current ranges depending on the model:
- High accuracy: ±(0.15 % reading + 0.2 % range + 1 digit) at 45-75 Hz, ±(0.3 % + 0.2 % + 1 digit) at 75-400 Hz
- Sampling speed: up to 8 measurements/s (50 Hz), with harmonic analysis switched on 4 measurements/s
- Waveform and harmonic analysis (only with TH3312, TH3321, TH3331): List display and histogram up to 50th harmonic on/off, display in % or absolute value
- PLL technology for fast and precise synchronisation; adjustable line filter (5 kHz) for clean measurement
- Energy integration: time and kWh counter with start/stop/reset, up to 99,999 kWh and 9,999:59:59 h:min:s
- Comparison and bin functions with handle outputs for automation test benches (PASS/FAIL, lamps/relays, acoustic)
- Waveform display (voltage/current) for visual inspection of the signal
- Interfaces: RS232C/RS485, USB device/host for PC communication, HANDLER port for automation control
- Automation control, USB memory for logs and firmware upgrade
- Robust design, compact housing (235×105×360 mm), power supply 200-240 VAC, 50/60 Hz, ambient 0-40 °C, ≤80 % RH
- Flexible trigger modes: Internal, manual, external (HANDLER), bus (SCPI)
Applications
- Energy efficiency and performance testing of household appliances (TV, refrigerator, air conditioning, washing machine, etc.)
- Industrial applications: Motor, transformer, charger and circuit testing
- Lighting and LED testing, power supply and power electronics characterisation
- New energies: photovoltaic modules, EV chargers, wind power systems, etc.
- Laboratory & development: design verification, prototype testing, research and teaching in PWM/inverter environments
- Production lines: Automated test benches with handle output, pass/fail sorting and data recording
Technical Data
| Model comparison | Measuring functions | Voltage range | Current range | Accuracy / Harmonics | Sampling | Power Range | Frequency Range | Energy Integration | Display & Interfaces | Dimensions & Weight |
|---|---|---|---|---|---|---|---|---|---|---|
 TH3311 | Measurement functions: AC/DC RMS, power, energy, no harmonics | Voltage range: 5-600 V (4 ranges: 75/150/300/600 V) | Current range: 10 mA-20 A (7 ranges) | Accuracy: ±(0.15 % reading + 0.2 % range + 1 digit) (45-75 Hz) | Sampling: 8 measurements/s | Power Range: 0.005 W-12 kW | Frequency range: DC/45-400 Hz, BW 21 kHz, filter 5 kHz | Energy integration: 0-99 999 kWh, up to 9 999:59:59 h:m:s | Display & interfaces: 4.3″ TFT-LCD 480×272; RS232C/RS485, USB D/H, HANDLER | Dimensions & weight: 235×105×360 mm; ≈ 3.6 kg |
TH3312 | Measuring functions: As TH3311 + harmonic analysis (2nd-50th order) | Voltage range: 5-600 V (4 ranges) | Current range: 10 mA-20 A (7 ranges) | Accuracy / harmonics: ±(0.15 % + 0.2 % + 1 digit); 2nd-50th order ±(5 % reading + 0.3 % range) | Sampling: 8/s (measurement), 4/s for harmonics | Power range: 0.005 W-12 kW | Frequency range: DC/45-400 Hz | Energy integration: 0-99 999 kWh | Display & interfaces: like TH3311 | Dimensions & weight: 235×105×360 mm; ≈ 3.6 kg |
TH3321 | Measuring functions: AC/DC RMS, power, energy + harmonics, micro current | Voltage range: 5-600 V (4 ranges) | Current range: 1 mA-2 A (7 ranges) | Accuracy / harmonics : ±(0.15 % + 0.2 % + 1 digit); 2nd-50th order | Sampling: 8/s, 4/s for harmonics | Power range: 0.0005 W-1.2 kW | Frequency range: DC/45-400 Hz | Energy integration: 0-99 999 kWh | Display & interfaces: like TH3311 | Dimensions & weight: 235×105×360 mm; ≈ 3.6 kg |
TH3331 | Measuring functions: AC/DC RMS, power, energy + harmonics, wide current | Voltage range: 5-600 V (4 ranges) | Current range: 10 mA-40 A (8 ranges) | Accuracy / harmonics : ±(0.15 % + 0.2 % + 1 digit); 2nd-50th order | Sampling: 8/s, 4/s for harmonics | Power range: 0.005 W-24 kW | Frequency range: DC/45-400 Hz | Energy integration: 0-99 999 kWh | Display & interfaces: like TH3311 | Dimensions & weight: 235×105×360 mm; ≈ 3.6 kg |