产品描述
NKB-25S series frequency transducer is mainly adopted to monitor the real time frequency of the power grid in transformer substations and power stations, adopt AC signals as input, or sampling frequency value directly from auxiliary power supply, and convert to relevant analog signals making it readable by RTU and other signal sampling devices.
Technical Parameter
| GENERAL CHARACTERISTICS | |
| Accuracy | ±0.2%, ±0.5% |
| Rated Input Frequency Range | 45 ~ 55Hz, 55 ~ 65 Hz, etc.(optional) |
| Input Voltage Range | 110V, 220V, 380V, 416V, etc. |
| DC Output Range | 0-20mA, 4-20mA, 0-1V, 0-5V, 0-10V, etc. (optional) |
| Response Time | ≤ 250msec |
| Auxiliary Power Supply | AC/DC 220V, etc. |
| Insulation Resistance Value | ≥ 100Mohm, DC 500V |
| Output Ripple | <0.2% (P-P) |
| Input Power Consumption | < 3VA |
| Withstand Voltage | >2.5kV |
| Influence of Temp. | when it’s within ruled operation temp. range, ±0.2% / ±0.5% allowable variation per ±20℃ |
| Nixie Display | 4 digital LED display (letters: 0.5 inch in height) |
| ENVIRONMENTAL CHARACTERISTICS | |
| Operation Temp. | -5℃ ~ +45℃ |
| Stock Temp. | -20℃ ~ +75℃ |
| Relative Humidity | <80% |
| Protection Level | IP 20 |
| Housing Material | |
| Mounting Method | 35mm DIN Rail |
| Unit Dimension(W*H*D) | 55*75*120mm |
| Frequency Input | Voltage Input | Output Range | Auxiliary Power Supply | ||||||
| Code | Code | Code | Code | Code | |||||
| H45 | 45 ~ 55Hz | V21 | 100V | I1 | 0 ~ 1mA | U1 | 0 ~ 1V | A110 | 110VAC |
| H56 | 55 ~ 65Hz | V22 | 220V | I2 | 0 ~ 5mA | U2 | 0 ~ 5V | A220 | 220VAC |
| H46 | 45 ~ 65Hz | V23 | 380V | I3 | 0 ~ 10mA | U3 | 0 ~ 10V | D110 | 110VDC |
| Y | customized | Y | customized | I4 | 0 ~ 20mA | U4 | 1 ~ 5V | D220 | 220VDC |
| I5 | 4 ~ 20mA | Y | customized | D24 | 24VDC | ||||
| Y | customized | AD | AC/DC85-265V | ||||||
| Y | customized | ||||||||
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