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| Model: Yokogawa WT300 Series Power Meter | | Model | WT310 | | Power Measurement | 1 element | | Available with 20A input element | | | | | Basic power accuracy: | 0.1% rdg +0.2% of range | | Power frequency range: | DC, 0.5 Hz to 100 kHz | | Frequency range: | 1 Hz, 10 Hz, 100 Hz, 1 kHz, 10 kHz, and 100 kHz. (autoranging | | Sampling Speed: | approximately 100 kS, s | | Effective Input for V , A: | 1% to 130% | | Maximum Input for V , A: | 1% to 140% | | Inputs | Crest Factor: Maximum 300 | | | Voltage | | (for crest factor 3) | 15V, 30V, 60V, 150V, 300V, 600V
| | (for crest factor 6) | 7.5V, 15V, 30V, 75V, 150V, 300V | | Direct Input: | Current | | (for crest factor 3) | 5mA, 10mA, 20mA, 50mA, 100mA, 200mA, 0.5A, 1A, 2A, 5A, 10A, 20A | | (for crest factor 6) | 2.5mA, 5mA, 10mA, 25mA, 50mA, 100mA, 0.25A, 0.5A, 1A, 2.5A, 5A, 10A | | External Input 1: | Current Sensor | | (for crest factor 3) | 2.5V, 5V, 10V | | (for crest factor 6) | 1.25V, 2.5V, 5V | | External Input 2: | Current Sensor | | (for crest factor 3) | 2.5V, 5V, 10V or EX2: 50mV, 100mV, 200mV, 500mV, 1V, 2V | | (for crest factor 6) | 1.25V, 2.5V, 5V or EX2: 25mV, 50mV, 100mV, 250mV, 500mV, 1V | | Measurement Parameters | | Main: | Voltage, current, active power, reactive power, apparent power, power factor, phase angle, frequency, peak voltage, peak current, crest factor, integration (Wh, Ah, varh, Vah), time, % | | | MAX hold
Voltage RMS, MEAN simultaneous measurement
Average active power (user defined function)
Active power integration (WP) (Wh)
Apparent power integration (WS) (VAh)
Reactive power integration (WQ) (varh) | | Display—- | | Display: | 7-segment LED, 4 items – Simultaneous display | | Communication | | | GP-IB Interface or Serial (RS-232) Interface (standard)
USB PC Interface (standard)
Ethernet Interface (optional)
| | Environment | | Warm-up Time: | Approx. 30 minute | | Power supply: | 100 VAC to 240 VAC rated, permitted 90 VAC to 264 VAC, 48 Hz to 63 Hz | | Power consumption: | Max 80 VA | | Operating Temperature: | Temperature: 5°C to 40°C
Temperature: −25°C to 60°C (storage) | | Storage Temperature: | Humidity: 20% RH to 80% RH (No condensation) | | Dimensions: | Approx. 213 (W) × 88 (H) × 379 (D) mm | | Weight: | Approx. 3 kg | | Battery backup: | Setup parameters are backed up with a lithium battery. |
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