Model Number	SZ03A-K33E
Test Voltage
Range	5V – 480V
Error	±0.01% (30V – 480V) ±0.03% (5V – 50V)
Display range	5.000000V – 480.0000V
Test Current
Range	1mA – 120A
Error	±0.01% (0.2A – 120A) ±0.05% (1mA – 0.2A)
Display range	1.000000mA-120.0000A
Power measure error
Active power	±0.01% (0.2A – 120A) ±0.02% (0.01A – 0.2A) ±0.05% (1mA – 0.01A)
Reactive power	±0.05% (0.2A – 120A) ±0.1% (1mA – 0.2A)
Apparent power	±0.05% (0.2A – 120A) ±0.1% (1mA – 0.2A)
Energy measure error
Active energy	±0.01% (0.2A – 120A) ±0.02% (0.01A – 0.2A) ±0.05% (1mA – 0.01A)
Reactive energy	±0.05% (0.2A – 120A) ±0.1% (1mA – 0.2A)
Apparent energy	±0.05% (0.2A – 120A) ±0.1% (1mA – 0.2A)
Phase angle
Range	0º – 360º
Error	±0.002º
Display range	0.000001º -- 359.9999º
Frequency
Range	45Hz – 65Hz
Display range	45.0000 – 65.0000
Pulse output
High frequency output(CH)	1×1012 (1mA – 2mA) 1×1011 (2mA – 20mA) 1×1010 (20mA – 0.2A) 1×109 (0.2A – 2A) 1×108 (2A – 20A) 1×107 (20A – 120A)
Low frequency output(CL)	2×10-5×CH
Pulse ratio	1:1
Output level	5V
Pulse input
Input level	5V
Input frequency	Max. 1MHz
Other
Voltage Supply	220V ± 10%, 50/60Hz ± 2Hz
Ambient temperature	10°C -- 30°C
Influence of external fields	≤ 0.05 % / mT
Relative humidity	45% -- 75%
Dimensions (W×H×D) (mm)	445×260×480
Weight (kg)	25

Description:

Introducing the High Accuracy Three Phase Reference Standard Meter, meticulously designed to meet the stringent requirements of Three Phase Energy Meter Test Bench Systems.

Key Features:

Unrivaled Precision: Achieving an exceptional level of accuracy, with measurements up to 0.01%, ensuring reliable and precise calibration results.
Versatile Testing Capability: Supports a variety of test types including three-phase four-wire and three-phase three-wire configurations, accommodating diverse testing needs with ease.
Extensive Testing Range: Offering a wide range of testing capabilities, from voltage measurements ranging from 5V to 480V, and current measurements from 1mA to 120A, ensuring comprehensive testing coverage across various scenarios.
Comprehensive Test Modes: Facilitates testing in multiple modes including active power, reactive power, and cross-connected reactive power, ensuring thorough assessment of meter performance under different load conditions.
Waveform Display Functionality: Provides real-time waveform display, offering valuable insights into the characteristics of electrical signals being measured.
Harmonic Analysis: Equipped with harmonic analysis functionality, enabling detailed examination of harmonic distortion and its impact on power quality.
Energy Accumulation: Features energy accumulating function, allowing for precise measurement and accumulation of energy consumption over time.
Vector Diagram: Incorporates a vector diagram function, enabling visualization of phase relationships and power factor, aiding in diagnosing and correcting power system issues.
Seamless Data Management: Effortlessly manage test data through computer connectivity via the RS232 interface, facilitating efficient analysis, documentation, and compliance with industry standards.
Experience unparalleled performance and versatility with the High Accuracy Three Phase Reference Standard Meter, designed to elevate the precision and reliability of energy meter testing processes.