YOKOGAWA 2038 Portable Frequency Meters 2038-31 2038-32 2038-03 2038-04

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2038 Portable Frequency Meters,Portable Needle-indicator Frequency Meters,2038-31 2038-32 2038-03 2038-04. 2038 Portable Frequency Meters,Portable Needle-indicator Frequency Meters Needle-type indicator frequency meter (differential system) Six (6) measuring ranges are available Portable Needle-indicator Frequency Meters Model 2038 uses a transducer to convert a measured frequency to a proportionate DC current, then shows the current as a DC current reading. The transducer, combined with a high sensitivity moving coil type indicator based on YOKOGAWA's proprietary taut-band suspension system, provides a level of performance not possible with conventional frequency meters. In addition to frequency measurements for research labs and schools, the 2038 can be used as a standard for measurement control labs and field tests. Features A wide range of frequencies (45~500 Hz) can be measured with the broad selection of models. True equivalent scale enables measurement of continuous frequency changes. A wide range of voltages (50~300 V) can be used. RMS response (differential system) minimizes waveform effects. Anti-shock structure provided by taut-band design. Specifications Operating principle : Needle-indicator frequency meter (differential system) Class : JIS C 1102 (see table below) Operating position : Horizontal Rated voltages : 120/240 120 V ... Can be used between 50 and 135 V. 240 V ... Can be used between 130 and 300 V. Scale length : Approximately 135 mm (deflection angle: 85°) Consumed power : 120 V ... Approximately 1.3 VA 240 V ... Approximately 2 VA Operating temperature and humidity ranges : 0 to 40°C, 25 to 80%RH Storage temperature and humidity ranges : -10 to 50°C, 25 to 80%RH Insulation test : Between electrical circuit and the case DC 500 V/More than 10MΩ Voltage test : Between electrical circuit and the case AC 2000V for 5 seconds External dimensions and weight : 197 × 181 × 92 mm, approximately 1.8 kg Standard accessory : Instruction Manual (1) Model Measurement range Accuracy Portable Frequency Meters 2038 31 45～65 HZ ±0.2% 2038 32 20～100 HZ ±1.0% 2038 03 100～300 HZ ±0.5% 2038 04 300～500 HZ ±0.5% Notes 1. If the voltage exceeds 300 V, externally connect an instrument voltage transformer 2261 or 2262 (page 9). 2. Not JIS-approved. 3. Tolerance is "percentage" with respect to maximam scale value. For 203831, 65 ±0.2% = ±0.13Hz.

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JAM POK (H.K.) TECHNOLOGY LIMITED

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