• 8 inch color touch screen, interface friendly, easy to operate
• Adopt advanced DSP data processing technology, can synthesize various irregular waveforms, such as harmonics, inter-harmonics, flicker, swells, dips, etc.
• Equipped with RS232, Ethernet, and WiFi interface, SPS-351 can either support stand-alone operation, PC control or handy wireless terminal control
• Communicate with tested meter thru RS-232/485 and Ethernet
• Automatically calculate the error of meter and transducer, and the related data can be downloaded thru U-disk
• Self-protection, alarming and displaying overload location for equipment output overload, Voltage short-circuit, Current open-circuit
• Automatically detect, diagnose and alarm for failure
• Remotely updating online, easily achieve software updating
• Supports local calibration at users’ side

AC voltage output
Range: 50V, 100V, 220V
Adjustment range: (0~120) %RG, RG refers to range, similarly hereafter
Adjustment degree: 0.01%RG, 0.1%RG, 1%RG, 10%RG for option
Stability: 0.01%/2min
Distortion: ≤0.1% (Non-capacitive load)
Output maximum load: 25VA each phase
Accuracy: 0.05%RG

AC current output
Range: 1A, 2A, 5A, 10A
Adjustment range: (0~120) %RG, RG refers to range, similarly hereafter
Adjustment resolution: 0.01%RG, 0.1%RG, 1%RG, or 10%RG
Stability: 0.01%/2min
Distortion: ≤0.1% (Non-capacitive load)
Output maximum load: 25VA each phase
Measurement accuracy: 0.05%RG

Power output
Power output stability: 0.01%/2min
Active power and reactive power measurement accuracy: 0.05%RG

Phase angle output
Output adjustment range: 0°~360°
Output adjustment resolution: 10°, 1°, 0.1°, or 0.01°
Resolution: 0.01°
Accuracy: 0.05°

Power factor output
Adjustment range: -1.0000 ~ 0.0000 ~ +1.0000
Measurement resolution: 0.0001
Accuracy: 0.0005

Fundamental frequency output
Adjustment range: 40Hz ~70Hz
Output adjustment resolution: 1Hz, 0.1Hz, 0.01Hz, or 0.001Hz
Min resolution: 0.001Hz
Accuracy: 0.002 Hz.

Three phase voltage / current symmetry and phase angle symmetry
Voltage / current symmetry: ≤0.1%
Phase symmetry: 0.05°

Harmonic setting
Harmonic order: 2^nd ~63^rd 
Harmonic content: 0~40%
Harmonic phase angle: 0°~359.99°
Harmonic phase setup resolution: 0.01°
Harmonic voltage accuracy: when Uh≥1%Un, 2% Uh; when Uh<1%Un, 0.02% Un
Harmonic current accuracy: when Uh≥1%Un, 2% Uh; when Uh<1%Un, 0.02% Un

Inter-harmonics setting
Frequency range: 16Hz~9kHz
Frequency accuracy: 0.05%
Inter-harmonics frequency setup resolution: 0.1Hz
Inter-harmonics content: 0~30%
Inter-harmonics amplitude accuracy: 5%

Output flicker value (Pst)
Setup range: Setup the ±30% (60% ΔV/V) of voltage or current within the range
Pst indication accuracy (220V~240V or 115V~125V): 1%
Waveform: square wave, rectangular wave or sine wave
Duty ratio (when the wave is rectangular): 0.01 % ~ 99.99 %
Modulation frequency range: 0.0008Hz ~ 40Hz

Swell/Dip
Trigger input delay (start delay): 0~60s
Swell/dip duration (continue): 1ms~60s
Maximum amplitude dips (sudden changes to): 0%
Maximum amplitude swells (sudden changes to): 140%
Period of ramp in/ ramp out: 0.1ms ~30s
Trigger output delay: 0~60s

Energy error measurement
Active energy accuracy: 0.05%RD (PF≥0.5)
Reactive energy accuracy: 0.1%RD (PF≥0.5)

General parameters
Power supply:                90~265VAC，110VDC~370VDC
Frequency:                     50Hz~60Hz
Consumption:                 50VA~1000VA
Environment Condition:  20℃~30℃，relative humidity≤85%
Storage environment:    -20℃~50℃
Size:                               600 (L) × 440 (W) × 176 (H)
Weight:                           25Kg