UT285C Three Phase Power Quality Analyzer

1. Waveform real-time display (4 channels voltage/4 channels current).

2. True RMS values of voltages and currents
3. Peak current and voltage values
4. Total harmonic distortion (THD)
5. Active, reactive, apparent power, by phase and cumulative
6. Transformer K factor
7. Power factors (PF) and displacement factors (DPF or COSΦ)
8. Short-term voltage flicker (PST)
9. Three phase unbalance(current and voltage)
10. USB interface/PC software

Features

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1. Waveform real-time display (4 channels voltage/4 channels current).

2. True RMS values of voltages and currents
3. Peak current and voltage values
4. Total harmonic distortion (THD)
5. Active, reactive, apparent power, by phase and cumulative
6. Transformer K factor
7. Power factors (PF) and displacement factors (DPF or COSΦ)
8. Short-term voltage flicker (PST)
9. Three phase unbalance(current and voltage)
10. USB interface/PC software

Tech. Spec

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Specifications UT285C
True RMS phase-to-neutral voltage 1.0V~ 1000V ±(0.5%+5dgt)
True RMS phase-to phase voltage 1.0V~ 2000V ±(0.5%+5dgt)
DC voltage 1.0V~ 1000V ±(1.0%+5dgt)
True RMS current 10mA~ 1000A ±(0.5%+5dgt)
Peak of phase-to-neutral voltage 1.0V~ 1414V ±(1.0%+5dgt)
Peak of phase-to-phase voltage 1.0V~ 2828V ±(1.0%+5dgt)
Current peak 10mA~ 1414A ±(1.0%+5dgt)
Active power 0.000W~ 9999.9kW ±(1%+3dgt)
Cosφ≥0.8
±(1.5%+10dgt)
0.2≤Cosφ<0.8
Reactive power, inductive or capacitive 0.000RVA~ 9999.9kVAR ±(1%+3dgt)
Sinφ≥0.5
±(1.5%+10dgt)
0.2≤Sinφ<0.5
Apparent power 0.000VA~ 9999.9kVA ±(1%+3dgt)
Power factor -1.000~ 1.000 ±(1.5%+3dgt)
Cosφ≥0.5
±(1.5%+10dgt)
0.2≤Cosφ<0.5
Active energy 0.000Wh~ 9999.9MWh ±(1%+3dgt)
Cosφ≥0.8
±(1.5%+10dgt)
0.2≤Cosφ<0.8
Reactive energy, inductive or capacitive 0.000VARh~ 9999.9MVARh ±(1%+3dgt)
Sinφ≥0.5
±(1.5%+10dgt)
0.2≤Sinφ<0.5
Apparent energy 0.000VAh~ 9999.9MVAh ±(1%+3dgt)
Phase angle -179°~ 180° ±(2°)
Tanφ
(VA>50VA)
-32.76~ 32.76 φ:±(1°)
Phase shift of power factor
(DPF)
-1.000~ 1.000 φ:±(1°)
Harmonic ratio
(order 1 to 50) (Vrms>50V)
0.0%~ 99.9% ±(1%+5dgt)
Harmonic angle
(Vrms>50V)
-179°~ 180° ±(3°) harmonics of order 1 to 25
±(10°) harmonics of order 26 to 50
Total harmonic ratio 0.0%~ 99.9% ±(1%+5dgt)
Distortion factor
(DF or THD-R)<50
0.0%~ 99.9% ±(1%+10dgt)
Transformer K factor 1.00~ 99.99 ±(5%)
3 phases unbalance 0.0%~ 100% ±(1%)
Number of channels 4U/4I
Parameters of electricity W, VA, Var, PF, DPF, cosφ, tanφ
Energy parameters Wh, Varh, Vah
Harmonic 50
Total harmonic distortion Order 0~50, each phase
Expert mode Yes
Number of Transient records 150 sets
3 phases unbalance Yes
Min/Max Yes
Alarm 40 different types of parameter selections, 12,800 sets alarm logs
Peak Yes
Phasor diagram display Auto
Auto power off Yes
Backlight Yes
Menu language English/Chinese
USB interface/PC software Yes
General Characteristics
Power 9.6V rechargeable lithium-ion battery
Product color Red and grey
Product net weight Instrument: 1.6kg, current clamp: 510g x 4
Product size 240mm × 170mm × 68 mm
Standard accessories 1pc carry cloth bag, (yellow, green, red, blue, black total 5pcs test lead), 4pcs alligator clip, 1pc power adapter, 1pc CD software, 4pcs 1000A current clamp
Standard individual packing Inner carton
Standard quantity per carton 1pc
Standard carton measurement 440 x 320 x 330mm
Standard carton gross weight 6.4kg

Models & Comparison

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Specifications UT285C
True RMS phase-to-neutral voltage 1.0V~ 1000V ±(0.5%+5dgt)
True RMS phase-to phase voltage 1.0V~ 2000V ±(0.5%+5dgt)
DC voltage 1.0V~ 1000V ±(1.0%+5dgt)
True RMS current 10mA~ 1000A ±(0.5%+5dgt)
Peak of phase-to-neutral voltage 1.0V~ 1414V ±(1.0%+5dgt)
Peak of phase-to-phase voltage 1.0V~ 2828V ±(1.0%+5dgt)
Current peak 10mA~ 1414A ±(1.0%+5dgt)
Active power 0.000W~ 9999.9kW ±(1%+3dgt)
Cosφ≥0.8
±(1.5%+10dgt)
0.2≤Cosφ<0.8
Reactive power, inductive or capacitive 0.000RVA~ 9999.9kVAR ±(1%+3dgt)
Sinφ≥0.5
±(1.5%+10dgt)
0.2≤Sinφ<0.5
Apparent power 0.000VA~ 9999.9kVA ±(1%+3dgt)
Power factor -1.000~ 1.000 ±(1.5%+3dgt)
Cosφ≥0.5
±(1.5%+10dgt)
0.2≤Cosφ<0.5
Active energy 0.000Wh~ 9999.9MWh ±(1%+3dgt)
Cosφ≥0.8
±(1.5%+10dgt)
0.2≤Cosφ<0.8
Reactive energy, inductive or capacitive 0.000VARh~ 9999.9MVARh ±(1%+3dgt)
Sinφ≥0.5
±(1.5%+10dgt)
0.2≤Sinφ<0.5
Apparent energy 0.000VAh~ 9999.9MVAh ±(1%+3dgt)
Phase angle -179°~ 180° ±(2°)
Tanφ
(VA>50VA)
-32.76~ 32.76 φ:±(1°)
Phase shift of power factor
(DPF)
-1.000~ 1.000 φ:±(1°)
Harmonic ratio
(order 1 to 50) (Vrms>50V)
0.0%~ 99.9% ±(1%+5dgt)
Harmonic angle
(Vrms>50V)
-179°~ 180° ±(3°) harmonics of order 1 to 25
±(10°) harmonics of order 26 to 50
Total harmonic ratio 0.0%~ 99.9% ±(1%+5dgt)
Distortion factor
(DF or THD-R)<50
0.0%~ 99.9% ±(1%+10dgt)
Transformer K factor 1.00~ 99.99 ±(5%)
3 phases unbalance 0.0%~ 100% ±(1%)
Number of channels 4U/4I
Parameters of electricity W, VA, Var, PF, DPF, cosφ, tanφ
Energy parameters Wh, Varh, Vah
Harmonic 50
Total harmonic distortion Order 0~50, each phase
Expert mode Yes
Number of Transient records 150 sets
3 phases unbalance Yes
Min/Max Yes
Alarm 40 different types of parameter selections, 12,800 sets alarm logs
Peak Yes
Phasor diagram display Auto
Auto power off Yes
Backlight Yes
Menu language English/Chinese
USB interface/PC software Yes
General Characteristics
Power 9.6V rechargeable lithium-ion battery
Product color Red and grey
Product net weight Instrument: 1.6kg, current clamp: 510g x 4
Product size 240mm × 170mm × 68 mm
Standard accessories 1pc carry cloth bag, (yellow, green, red, blue, black total 5pcs test lead), 4pcs alligator clip, 1pc power adapter, 1pc CD software, 4pcs 1000A current clamp
Standard individual packing Inner carton
Standard quantity per carton 1pc
Standard carton measurement 440 x 320 x 330mm
Standard carton gross weight 6.4kg
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