HIOKI 3286-20 Clamp On Power Hi-Tester

The 3286-20 provides the following 2 types of power factor measurement. If the waveform includes harmonic distortion, there will be a difference between the two measurement values, and the method must be selected accordingly. Power factor derived by phase discrimination ( cos ¦ ) : 1¦ Power Factor meter and 3¦ Power Factor meter mode From the phase information for the fundamental frequency component, cos ¦ is calculated. This is suitable for assessing the quality of a power supply. Power factor ( effective value power factor) derived from effective power ¦ apparent power: 1¦ Power meter mode This is calculated from the power value including harmonic components ( effective power ¦ apparent power) . This is suitable for evaluating the performance of standalone load equipment and similar cases. * It is not possible to calculate the effective power factor of a three-phase line. The 3286-20' s three-phase power measurement method calculates and displays the power values for a sine wave input at 50/ 60 Hz, assuming it is balanced and there is no distortion. Accurate measurement is not possible on a three-phase line if it is not balanced, for example when controlled by an inverter or thyristor. Features Use as a single-phase power meter or power factor meter ( 3kW to 660kW) Simple checking of three-phase lines ( 6kW to 1200kW range) Check power supply fluctuations 1000A, 1000 Hz, peak and harmonic measurement True RMS ( effective value) display method Optional printer ( 9442 Printer) Specification: Measurement Lines: Single-phase/ two-wires, Three-phase/ three-wires ( balanced load only) Measurement Items: Voltage, current, voltage/ current peak, effective/ reactive/ apparent power( Single-phase or 3-phase) , power factor, reactivity, phase angle, frequency, phase detection( 3-phase) , voltage/ current harmonic levels( up to 20th) Measurement Ranges: Voltage: 150.0 V to 600 V, 3 ranges Current: 20.00 to 1000 A, 3 ranges Power: 3.000 kW to 1200 kW, 18 combination patterns Note: 3-phase power is calculated and displayed on the basis of a balanced, 50/ 60 Hz, sine wave input. For apparent power and reactive power, the unit of watts in the above table is replaced by VA and var respectively. Basic Accuracy: Power/ single-phase: ± 2.3 % rdg. ± 5 dgt., Power/ 3-phase: ± 3.0 % rdg. ± 10 dgt. ( at balanced load) Voltage/ Current Accuracy: Voltage: ± 1.0 % rdg. ± 3 dgt., Current: ± 1.3 % rdg. ± 3 dgt. ( at 45 to 66 Hz) Frequency characteristics ( at AC current / voltage) : AC current : 45 to 1 kHz AC voltage : 30 to 1 kHz Other functions : Phase detection, Record ( Max. value/ Min. value) , Battery capacity display, Data hold, Auto power off, Data output ( RS-232C interface by optical insulating coupler) Display Update Rate: NORMAL: approx. 1 time/ sec, SLOW: 1 time/ 3-sec, HARM meas.: approx. 1 time/ 2-sec Power Supply: 6LR61 alkaline battery × 1 ( continuous operation max. 25 hours) , 6F22 manganese battery × 1 ( continuous operation max. 10 hours) Core jaw dia.: Ø 55 mm( 2.17 in) or 80 mm ( 3.15 in) × 20 mm ( 0.79 in) busbar Dimensions: 100 mm( 3.94 in) W × 287 mm( 11.3 in) H × 39 mm( 1.54 in) D Weight: 650 g ( 22.6 oz) Accessories: 9635 VOLTAGE CORD ( 1) , 9245 CARRYING CASE, ( 1) , Hand strap ( 1)