Product Name:Power quality monitoring device                        
Product model: SF DZ-3E
Functional features:
1. Real time monitoring and timed recording (recording a set of measurement results every 15 minutes, with adjustable storage time)
2. It can measure parameters such as grid harmonics (0-25 times), three-phase voltage imbalance, voltage deviation, frequency deviation, effective value of voltage fundamental wave, effective value of current fundamental wave, active power, reactive power, power factor, and other parameters specified in national standards for power quality.
3. The input signal and measurement system are safely isolated, and the product design is safe, reliable, and has strong anti-interference ability.
4. Adopting a high-speed processor DSP as the computing core, it has fast processing speed and high accuracy.
5. All adopt benchmark algorithms without approximate calculations, using high-precision A/D and synchronous sampling.
Communication method: GPRS, RS232, TCPIP protocol
6. Constructing a power quality management system using two modes: GPRS or TCPIP protocol
Technical indicators:
7. Current measurement range: ≤ 5A, other ranges can be selected according to user requirements
8. Voltage measurement range: ≤ 380V (57.5V/100V/220V/380V)
9. Fundamental wave error: ≤ ± 0.5%
10. Working voltage: AC: 85-265V/50Hz DC: 120-360V
11. Measurement accuracy: Class A
12. Data storage: continuously stored for one week
13. Communication method: GPRS, RS232, TCPIP protocol
14. Environmental temperature: -10 ℃ -50 ℃