Product features:
1.SWT-VB tester has colour LCD screen that can display the controlling process, measurement data. 
2.You can  using the keyboard to operate the whole process of testing  ,  so it is used not for factory testing but also  for outdoor field testing.
3. the PC software  analyze the data, store and print the various reports.Therefore, it is the current domestic switch manufacturers are using the mainstream products.
4.with a mini printer to print the result on the site.


Functions:

1. General testing close, open and displaying  the entire process just need to press the test button once.
2. Automatically identify switchgear status (on or off) to avoid wrong operation.
3. Six test types of switchgears can be performed: close, open, close-open, open - t - close-open, open -t- close-open - t - close-open and close-open -t - close-open.
4. Three  options to take measure: liinear sensor and angle  sensor.the auxiliary contact spot instead of sensor is to take rough measurment.It is flexible to choose the sensor installed on any one of the A or B or C Phase of contact No.1or 2.
5.Three test controlling ways: internal controlling, external controlling and manual controlling.
6.Accurately measure the current peak value and varied curve of the open and close coil. 
7. Four definition modes: percentage of total travel, percentage of contacts' distance, time and travel to respectively definite the contact moving speed to meet varies speed test requirements.
8.Directly and accurately measure the contacts' distance.
9. Measuring and displaying port waveform, rebound peak value, bounce, over-travel, over-stroke and so on.
10.Testing the data of circuit breaker mechanical characteristics like time and speeds of opening and closing at the different time. It not only meets the old test standards but also new test standards.
11.Simultaneous testing of six fracture switches.

Main technical data:  
                                       
Power supply: AC 220V±10%  50Hz±5HZ
Work environment temperature: -10oC~60oC
Maximum output current of inner DC power supply: 10A
Relative moisture: ≤90%
Adjustable voltage range: 0V~300V
Acceptable external power supply: 0~10A (remark: the external AC contactor is needed when the current value is above 10A)
Mechanical travel characteristics sampling frequency: 40KHz                     
Sampling resolution: 16bit
Time measurement scope:0.1ms-999.9ms              resolution:0.025ms                                 precision±0.05ms
Speed measurement range:0.01m/s-0m/s              Speed measurement resolution:0.01m/s    Reading: ±0.02m/s     Precision: 1%
Travel measurement range: 0 mm~999.99mm        Resolution: 0.1mm                                 Precision: 0.05
Coil current waveform sampling frequency: 40KHz    Sampling precision: ≤0.1%
Coil current measurement scope:0~15A (standard)According to the clients demand, the measurement scope can be setup: 0~300A