MOEORW-YJ500D AC Sampling Tester Send email to us

• Features a wide-band standard source design with high output power, exceptional stability, and rapid response.
• Integrates system, testing, and signal generation into a single module, delivering high integration, low failure rate, compact size, lightweight construction, and superior reliability.
• Simple operating system displays test screens immediately upon startup. Standard source output requires no guidance programs, ensuring fast response and high efficiency.
• Superior closed-loop output for voltage, current, power, phase, and frequency. Software calibration enables one-time point setting for user-friendly operation.
• Pre-set common test points for voltage, current, and phase simplify operation with one-point adjustment, ensuring convenience and efficiency.
• Utilizing power communication protocols and computers, the calibration device conveniently performs fully automated verification and management of AC sampling devices and various transmitters.
• Flexible software functionality with domestic template-based protocol configuration and template-based report configuration allows users to customize new RTU communication protocols and report formats via templates. The software provides communication protocol templates for over a hundred common RTU models from major manufacturers, along with robust online help and voice prompts.
• Integrated meter-source design combines front-panel standard source output with rear-panel external standard input, unifying protocol verification and field calibration (with clamp meter) functions.
• Outputs standard harmonics from 2nd to 31st order, supporting single-harmonic or arbitrary multiple-harmonic superposition.
• Arbitrary phase shifting is possible between three-phase voltages, three-phase currents, and individual phase voltages/currents, enabling simulation of various power fault outputs.
• Multiple alarm and protection functions are provided. The device performs self-diagnostics for faults, displaying fault type and location for safe and • Equipped with interfaces and software. The interface protocol is open, allowing users to program and control the instrument independently.

AC Output
2.1.1 Three-Phase AC Voltage Output
Range: 57.7V, 100V, 220V, 380V
Adjustment Range: (0–120)% RG1
Adjustment Resolution: 0.002% RG
Accuracy: 0.05% RG
Stability: 0.01%/2 min
Distortion:            ≤0.2% (non-capacitive load)
Output Load:            35VA per phase
2.1.2 Three-Phase AC Current Output
Range:              1A, 2A, 5A, 20A
Adjustment Range:      (0～120)%RG
Adjustment Resolution:  0.002%RG
Accuracy:            0.05%RG;
Stability:            0.01%/2min
Distortion:            ≤0.2% (non-capacitive load)
Output Load:          25VA per phase
2.1.3  Power Output
Active Power Accuracy: 0.05%RG
Reactive Power Accuracy: 0.1%RG
Stability:            0.01%/2min
2.1.4  Phase Output
Adjustment Range: 0° to 359.99°
Resolution: 0.01°
Accuracy: 0.05°
2.1.5 Power Factor
Adjustment Range: -1 to 0 to +1
Resolution: 0.0001
Accuracy: 0.05%
2.1.6 Frequency Output
Adjustment Range: 45Hz to 65Hz
Resolution: 0.001Hz
Accuracy: 0.002Hz
2.1.7 Three-Phase Voltage, Current Symmetry, and Phase Symmetry
Voltage/Current Symmetry: ≤0.02%
Phase Symmetry: ≤0.05°
2.1.8 Voltage and Current Harmonic Output
Harmonic Order: 2 to 31
Harmonic Content: 0 to 40%
Harmonic Phase: 0 to 359.99°
2.2 AC Measurement
2.2.1 Three-Phase AC Voltage Measurement
Range: Auto-ranging (57.7V, 100V, 220V, 380V)
Measurement Range: (0–120) %RG
Resolution: 0.01%RG
Accuracy: 0.05%RG
2.2.2 Three-Phase AC Current Measurement
Range: 5A
Measurement Range: (0–120)%RG
Resolution: 0.01%RG
Accuracy (terminal input):    0.05%RG
Accuracy (clamp input):    0.2%RG
2.2.3  Power Measurement
Active Power Accuracy (terminal input):    0.05%RG
Active Power Accuracy (clamp input):    0.2%RG
Reactive Accuracy (Terminal Input): 0.1% of Reading
Reactive Accuracy (Clamp Input): 0.5% of Reading
2.3 DC Output
2.3.1 DC Voltage Output
Voltage Range: 75mV, 10V, 100V, 300V, 600V
Output Range:               (0～120)%RG
Accuracy:                0.05%RG²
Stability:                0.01%/1min
Ripple Content:                ≤0.5%
Regulation Fineness:                0.002%RG
Output Load:                10VA³
 2.3.2 DC Current Output
Current Range:                20mA, 10mA, 1mA
Output Range:               (0～120)%RG
Accuracy:                0.05%RG
Stability:                0.01%/1min
Ripple Content:                ≤0.5%
Adjustment Resolution: 0.002% of Full Scale
Output Load: Maximum output voltage 40V
2.4 DC Input
2.4.1 DC Voltage Input
Voltage Range: ±10V, ±5V, ±2.5V
Measurement Range: (0 to 120)% of Full Scale
Accuracy: 0.01% of Full Scale
2.4.2 DC Current Input
Current Range: ±20mA, ±10mA, ±5mA, ±1mA
Measurement Range: (0～120)%RG
Accuracy: 0.01%RG