Fully automatic tester is designed for diodes and thyristor measurement.
It will be used in combination with an external press for inspection of diodes and thyristors.
National Instruments’ computer manages all internal functions of the tester, communication with external – host computer and graphic user interface.
Tester’s software manage all internal functions like: setting up and execution of measurements program, check and indication of errors, step by step operation in service mode and supports calibration and scaling functions.
Ergonomic operator panel consist of 20” Touch Screen Monitor, PASS/FAIL and system status indicators, safety switches, keyboard and mouse and allows operator to control all tester functions.
Tester operating modes:
1. Manual operation without connecting to the HOST computer, and with manual setting of test conditions: Serial number of the device under test and test recipes (VRRM/VDRM, VFM/VTM, dv/dt) are entered manually by the operator. Test starts when the operator presses the START button on the operator’s panel. Results are saved in memory of tester computer.
2. Automatic operation in combination with HOST computer: Serial number of the device under test is entered automatically by the barcode reader connected to the HOST computer. Test conditions data are sent from the HOST computer to the tester’s computer. Test sequence starts when the operator presses the START button on the operator’s panel. Results are saved in tester’s computer memory, and then sent to HOST computer automatically.
TESTER measurement modules:
1. VRRM/VDRM measuring module (sine halfwave of ampl. 200÷7500V)
2. VFM/VTM measuring module (sine halfwave of ampl. till 5000A)
3. Module for measurement of thyristor resistance to dv/dt rate of voltage rise of 300V/µs to 4000V/µs
TECHNICAL DATA
Operator |
1 person |
Cycle time duration |
max. 15sek. |
Supply voltage |
3x400V or 3x208V; 50/60Hz
(base on client requirements) |
Max current consumption (peak) |
L1/L2 – 250A w czasie 20ms; L3 – 5A |
User interface |
- touch screen monitor
- keyboard and mouse
- switches/status lamps |
Graphic User Interface |
- text commands supporting operator
- measurement results (digital)
- registered waveforms
- diagnostics and terror messages |
Software |
- management of measuring module for diodes and thyristors measurement
- communication with HOST komputer
- service and calibration modules |
Service tools |
- management of measuring module for diodes and thyristors measurement (step by step mode)
- scaling of tester modules
- calibration of tester modules
- diagnostics of separate circuits and components |
National Instruments computer functions |
- control of all module and testers circuits
- communication with HOST computer
- operator's commands display
- diagnostics and terror messages display
- presentation of measurements results and graphs |
| V RRM /V DRM measuring module |
Waveform of testing current: |
sinusoidal half-wave 10/8,3ms |
Repetitive peak blocking/reverse voltage V RRM /V DRM : |
0÷7500V |
Measurement tolerance of testing voltages: |
1% |
Repetitive peak reverse/blocking current I RRM /I DRM : |
0÷600mA |
Measurement tolerance of testing current: |
1% |
V FM /V TM measuring module |
Waveform of testing current: |
sinusoidal half-wave 10/8,3ms |
Forward current adjustment range: I FM /I TM |
0÷5000A |
Measurement tolerance of testing current: |
3% |
Range of V FM /V TM voltage: |
0÷10V |
Measurement tolerance of testing voltages: |
1% |
Range of gate current: |
0÷2500mA |
Duration of gate pulse: |
0÷5ms |
| Module dv/dt |
Type of du/dt waveform: |
linear |
du/dt adjustment range: |
200÷4000V/µs |
Adjustment range for dv/dt testing pulse amplitude: |
500÷6000V |
dv/dt measurement tolerance: |
±10% |
Mechanical parameters |
Overall dimensions (L x W x H) |
1480x885x2000 [mm] |
Wright |
920kg |
