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YOKOGAWA 2534 POWER MEASURING INSTRUMENTS The 2534 is designed with emphasis on solid performance, functionality, low cost and compact and is a digital power meter of YOKOGAWA. The 2534 is a single phase model. Safety Standards; EN61010, CATII, Pollution degree 2 EMI Standard; EN55011 Group 1 Class A Immunity Standard; EN50082-2: 1995 This model is made from several needs. For example, the request is realized by harmonic analysis function of the 2534 series that is to measure and analyze the harmonic distortion of current wave form because various harmonic-wave problems caused by distorted wave current. Another request is realized by integration function of both polarities that is to measure integrators for positive and negative polarities separately in the charge/discharge testing of battery-driven equipment. User caliblation (by remote communications or manually) Insulation between voltage and current input terminals The double insulation design conforms to the safety standard IEC1010. All models are subjected to withstand voltage tests of 3.7 kV/50 Hz AC for one minute. The specifications now include a durability of 2 kVrms, 300 Arms/1 cycle (20 ms). Built-in harmonics analyzer (optional) The new built-in harmonics analyzer less than others in its class. This power meter, together with a clamp sensor, makes this meter ideal for power supplies. Input circuit type Floating input Resistive voltage divider Shunt input Rated inputs (range rms) 15/30/60/150/300/600 V Direct input: 0.5/1/2/5/10/20 A External input (optional): 2.5/5/10 V or 50/100/200 mV Input impedance Input resistance approx. 2 M W, input capacitance approx. 13 pF Direct input: approx. 6 mW + approx. 0.1 mH External input: 2.5/5/10 V – approx. 100 k W; 50/100/200 mV – approx. 20 kW Instantaneous maximum allowable The peak is 2.8 kV or the RMS value is 2.0 kV, whichever is less. The peak is 450 A or the RMS value is 300 A, whichever is less. input for 20 ms, 1 cycle External input: Peak value is 10 times the range or less. Instantaneous maximum allowable The peak is 2.0 kV or the RMS value is 1.5 kV, whichever is less. The peak is 150 A or the RMS value is 40 A, whichever is less. input for 1 s External input: Peak value is 10 times the range or less. Continuous maximum allowable input The peak is 1.5 kV or the RMS value is 1.0 kV, whichever is less. The peak is 100 A or the RMS value is 30 A, whichever is less. External input: Peak value is 5 times the range or less. Continuous maximum common mode voltage (at 50/60 Hz) Common mode rejection ratio at 600 50/60 Hz, better than –80 dB ( Vrms between input terminals and case Voltage input terminals: short, Current input terminals: open ± {(maximum range rating)/(range rating) ´ 0.001 ´ f% of range} or less; 0.01% or more; the unit f: kHz Input terminals Binding posts Direct input: Large binding posts, External input: Safety terminals A/D conversion Simultaneous sampling of voltage and current inputs Resolution: 12 bits, Maximum conversion rate: approx. 26 Range switching Range can be selected manually, automatically or by communication control. Automatic range switching Range up: When the measured value exceeds 110% of the rated range or the peak value exceeds approximately 300% of the rated range Range down: When the measured value becomes less than 30% of the rated range and the peak value is less than approximately 300% of the subordinate range Measurement mode switching The following modes can be set manually or by communication control: RMS: True RMS measurement for both voltage and current; V MEAN: Rectified Mean Calibration to an RMS sine wave measurement for voltage, and true RMS measurement for current; DC: Mean value measurement for voltage and current 600 Vrms |