Operating Instructions WZ12A ... F, Clip 0100S -E 3-349-016-02 8/3.
1 Safety Features and Symbols The WZ12 current transformer is manufactured and tested in accordance with IEC 61010-1 and IEC 61010-2-032 safety regulations. When used for its intended purpose safety of the operator, as well as that of the instrument, is assured. Their safety is however not guaranteed, if the instrument is used improperly or handled carelessly.
• The clip-on transformer must be removed from service immediately if the cables or housing components are damaged. Check the secondary circuits of the WZ12A clip-on transformer on a regular basis to make sure that continuity is uninterrupted. Remove the clip-on transformer from service if poor contacts become apparent. The clip-on current transformer must be protected against liquids and contamination.
3 Performing Measurements The probe should be calibrated on a regular basis in order to assure flawless functioning and measurement accuracy. Due to the fact that the nickel iron core used for types BF and Clip 0100S is highly sensitive to impact, special attention must be paid during measurement, storage and transport: Powerful impacts and vibration must be avoided. Make sure that the secondary circuit is connected to the measuring circuit at the measuring or recording instrument first.
4 Technical Data Type WZ12A WZ12B WZ12C WZ12D WZ12E WZ12F Clip 0100S Article Number Z219A Z219B Z219C Z219D Z823D Z823E Z501E Measuring Range 15180 A~ 10mA100A ~ 30mA150A ~ 0.
Type WZ12A WZ12B WZ12C 3% rdg. 0.2 mA WZ12D WZ12E WZ12F 2.5% rdg. 1 mA 2% rdg. 10 mA 2% rdg. 1 mA 2.5% rdg. 2% rdg. 2% rdg. 3 10 2 10 2 15 Clip 0100S 3% rdg. 0.2 mA Influence Error Frequency fminfmax 3% rdg. 1.5% rdg. 1 mA Influence Error Temperature /10 K (typ.) 3% rdg. 1.5% rdg. not defined 3 10 360 A 900 A 200 A 500 A 300 A 750 A 300 A 750 A 300 A 750 A 30 A 75 A 300 A 750 A max. 15 V 1) max. 15 V max. 27 V max. 27 V 1) max. 27 V max.
Reference Conditions Frequency Waveshape Temperature Relative Humidity Output Burden/Load Electrical Safety Protection Class 45 65 Hz Sine 21 25 C 45 55% Specified range Measuring Category Operating Voltage Pollution degree Test Voltage II per IEC 61010-1/ VDE 0411-1 II III 600 V 300 V 2 3.7 kV AC, 1 min.
5 Maintenance 6 The clip-on current transformer requires no maintenance. The probe may not be immersed into any liquids during cleaning, and no solvents may be used. The surfaces between the jaws should be cleaned with a lightly oiled cloth on a regular basis. Remove contamination and dust from the plastic components and connector cables with a cloth which has been dampened with soapy water. Measure the resistance at the secondary circuit with an ohmmeter on a regular basis.
