I. overview
YWG series transmitter for the Holzer effect Holzer effect, transmitter shortcomings of temperature drift, controlled by the compensation circuit can effectively reduce the influence of temperature drift on the measurement accuracy, to ensure the accuracy of the measurement; can the current and voltage measuring arbitrary waveform, according to user requirements to provide standard transmitter output parameters (such as: 0 ~ DC 5V, 1 ~ 5V, 0 ~ 20mA, 4 ~ 20mA), has the characteristics of high precision, convenient installation, low price.
YWG series transmitter Holzer effect is widely used in inverter, inverter, UPS power supply, communication power supply, electric welding machine, electric locomotive, transformer substation, CNC machine, electrolytic plating, microcomputer monitoring, network monitoring and detection of current and voltage isolation facilities.
Two, principle
YWG-HTD-7- - A - / - type current transducer is a primary side and secondary side high electrical isolation, the instrument can be measured, such as the current ripple of DC and AC signal into a DC current or DC voltage output according to the linear proportion. It has the advantages of good temperature characteristics, high linearity, stable performance, products can be up and down switching, easy installation etc..
Three, model description
Fourth, technical performance indicators
| Overload capacity | 2IN | Frequency characteristics | 0～10kHz |
| Precision grade | < 1.0%NIN | Resistant to high voltage | 3kVRMS/50Hz/min |
| linearity | Better than 0.2% | The work environment | 0 ~ 45 ℃ |
| Temperature drift | Superior to + 100 PPM / ℃ | Working power supply | ±12V～±15V |
| The reaction time | Less than 100 ms | Flame retardant properties | UL94-VO |
| Offset voltage less than 20 mv current is less than 0.2 mm + / - mA | Power supply voltage output power consumption acuities were 30 ma ma + 30 or less output current IM | ||
Five, the standards
QB/441600 17 113-2002
Six, type and parameters
| Type no. | Lose into AC, DC/DC | Pin connector |
| YWG-HTD-7-300A | 0～300A/DC 0～5V、1～5V、0～20 mA、4～20 mA | 1: working power supply side 2: the negative working power supply side 3: measuring output terminal 4: public ground terminal |
| YWG-HTD-7-500A | 0～500A/DC 0～5V、1～5V、0～20 mA、4～20 mA | |
| YWG-HTD-7-600A | 0～600A/DC 0～5V、1～5V、0～20 mA、4～20 mA | |
| YWG-HTD-7-800A | 0～800A/DC 0～5V、1～5V、0～20 mA、4～20 mA |
Seven, appearance figure
Eight, matters needing attention
1) work must be properly connected power supply, output, cannot be wrong answer;
2) for two potentiometer, please do not adjust, if needs calibration, with a small screwdriver slowly rotate to the required precision;
3) the original edge bus temperature should not exceed 60 ℃;
4) when the current bus bar to fill the original edge threading hole, get the best measurement accuracy;
5) using the environment should be no conductive dust and no corrosive action on metals, and damage the insulation gas exists, the height is less than 2500 meters above sea level;
6) test the dc current, current direction and products marked by the arrow direction on the shell, can obtain the positive output。
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