Impulse Winding Tester
DWX-01A
DWX Series Features
- This innovative tester offers a news solution for low inductance coil test.
With the advanced requirement of miniaturization and high frequency technology of coil production, the DWX tester is designed to test other coils and low inductance coils used in high-end electronic components. Through the use of impulse power source with high-speed switch, highly efficient input circuit, and high-speed A/D sampling circuit, the DWX tester can offer a new solution to the low inductance coil tests.
- Its advanced technology allows a complete waveform and partial discharge observation by the resistive voltage divider.
The high performance voltage divider allows the DWX input circuit of impulse waveform to generate a complete wave pattern without any distortion. At the same time, it also helps improve the partial discharge sensitivity and detection capability
(The DWX's detection sensitivity is improved compared with that of our DW & DWS series, except for the DW-9505F).
- Its high sampling rate of 100 MHz delivers highly sensitive and precise test.
Its high-speed A/D sampling helps to verify the extremely short impulse response of the low inductance coil. At the same time, the 8 kByte sampling, with highly refined data analysis, can precisely capture the subtle difference in the wave patterns.
- The partial discharge amount calculated by the Laplacian method is displayed clearly in a separate sub-window.
The employed Laplacian method calculates the partial discharge (PD) generated by high voltage impulse. This PD, abstracted from the voltage wave, visually displays a bar graph in a separate sub-window, offering an easy and comfortable viewing.
- The 8.4-inch color TFT LCD screen clearly displays the waveform and is easy to view.
- A combination of our proven Area, Dif-Area and Flutter comparison methods can be selected to perform the layer short test.
All types of coils can ve evaluated by choosing a combination of various test mehods: Area Size Comparison, Differential Area Size Comparison, Flutter Value (Corona Discharge) Detection, and Laplacian Value and Laplacian Value (Corona Discharge) Detection. (* The Flutter Value Detection and the Laplacian Value Detection can only be selected alternatively.)
- The equipped compact flash memory device offers an unlimited memory of the master data.
Specification
| DWX-01A | DWX-05A | DWX-10 | |
|---|---|---|---|
| Applied Voltage, Step, and Energy * At 1 kOhm Resistive Load |
50V～1000V （10V Step） Max 5 milli-Joules |
500V～5000V （100V Step） Max 0.12 Joules |
1000V～10000V （200V Step） Max 0.5 Joules |
| Inductance Test Range | More than 10μH | More than 10μH | More than 50μH |
| Sampling Speed | 8bit／10nano-sec.（100MHz） | ||
| Sampling Memory | 8192- Byte | ||
| Sampling Range | 10 Ranges: -4、-3、-2、-1、0、1、2、3、4、5 （Width 0 to 5 is the Compatible Range with the DW Series） |
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| Input Test Circuit (Impedance) | Resistive Voltage Divider（5MOhm） | ||
| Screen Display Resolution Waveform Display Range | 640 x 480 Dots (VGA), 8.4" TFT Color LCD, 4 Color Display 512 x 256 Dots |
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| Detection Mode | Master Waveform Comparison Detection by Area Size Comparison, Differential Area Comparison and Corona Discharge |
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| Master Waveform Memory | Internal Memory: 196 Types (14 Types per Page, 14 Pages) 700-Types by Compact Flash Memory (14 Types/50 Pages) |
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| External Interface | Parallel I/O (Start, Reset, OK, NG, Busy, Master Numbers, etc.) RS-232C (Test Control, Test Data, etc.) Printer Port (Screen Hard Copy) Ethernet Adapter (Option) |
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| Accessories | A Tester Cable (1.5m), A Power Cable (With 3P Adaptor) A Parallel I/O Connector An Instruction Manual and Inspection Record |
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| Environmental Conditions | 0℃-40℃, AC Voltage Upon Your Request：100V/115v/220v/240V±5％ | ||
| Dimension (Excluding the Handle)/ Weight | 345（W）×185（H）×370（D） Approx10Kg | 345(W)×325(H)×370(D) | |
Impulse Winding Tester DWX Series
| DWX-300LI | DWX-01LI | DWX-05A | DWX-10LI | |
|---|---|---|---|---|
| Use | Precision test | Ultra-low inductance | General coil component | Low inductance |
| Inductance range | 0.1μH ～ 1mH | 10μH ～ 100mH | 0.1μH ～ 100μH | |
| Test voltage range | 3V ～ 300V | 10V ～ 1200V | 500V ～ 5000V | 10V ～ 5000V |
| Setting voltage resolution | 0.1V step | 1V step | 100V step | 1V step |
| Measurement voltage resolution | 0.3V | 1.2V | 12V | 6V |
| Maximum applied voltage (standard) | 1μH/ 300V | 1μH/ 1000V | 10μH/ 10000V | 1μH/ 1000V |
| The maximum output voltage (no load) | 2000V | 5000V | 5000V | 10000V |
| Waveform sampling resolution | 200MHz equivalent | 200msec | 100msec | |
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Minimum Test time |
High speed mode With judgment 18msec No judge 10msec with screen display 108msec without screen display 53msec
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200msec |
400msec |
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| Judgment function | Area Differential Area (Dif Area) Discharge value (Flutter) Breakdown voltage test (BDV) Manual voltage evaluation test (Manual BDV) |
Area Dif. Area (Dif Area) Discharge value (Flutter) Discharge level (Laplacian) |
Area Dif. Area (Dif Area) Discharge value (Flutter) Breakdown voltage test (BDV) |
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| Test Circuit | 4 Terminal | 2 Terminal | ||
| Test cable length range |
Recommended 1.5m ( Up to 3m ) |
Recommended 30cm ( Maximum within 1m) | ||
| Partial discharge test compatible | Wrong | PD compatible | Wrong | |
| Additional function |
Master waveform storage number 196 models, expansion with CF memory card External control by RS-232C · I / O, test result Log saving · screen hard copy preservation |
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| External I / O control signal | High-speed interface timing test corresponding to inspection handler start (Start) · Under test (Busy) etc | External control such as test start (Start), under test (Busy) | ||
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Appearance dimension |
345(W)×185(H)×360(D) | 345(W)×325(H)×360(D) | ||
| Power supply voltage | AC100/115/220/240 ±5% changeable type | |||
