WQ4833, WQ4834, WQ4835
Digital memory transistor curve tracers
Features:
High-power：Maximum collector current is 200A.
Digital Storage：the machine can store 10 graphics, can also be stored to the computer through the USB interface with infinite amount. Can be saved as a specific file format, and can also be saved as JPG, BMP and other image formats. Data stored in the computer can be print into pictures by the printer and also can be downloaded through and USB interface to the Instrument.
Security: cut off the collector supply and base voltage、current outputs on stop state, to ensure that the operator, the security of device under test and Instrument.
Display interface：640×480 TFT Color LCD Monitor，friendly human interface.
Synchronous display：high-speed USB communication can display the graphics on a computer screen while testing the devices, so that the size of display interface is expanded unlimitedly.
Parameter display：automatically measure and show the voltage, current、β、gm measured value and set parameters.
Pairing selection：a static graphics and a dynamic graphics can be displayed simultaneously, to pair the two device intuitively.
Rapid screening：upper and lower limits of a parameter can be set under certain conditions, it will alarm with sound and light when the measured parameter exceeds the range.
Communication interface：USB.
Specific function：WQ4835 high voltage output can be used in high-voltage diode reverse leakage current test and withstand voltage test; WQ4833、WQ4834 high voltage output can only be used in withstand test.
Technical Specification:
Y Axis system：
a. collector current（IC）
WQ4833: 20μA/div ～ 5A/div， 17stage, maximum 50A
WQ4834: 20μA/div ～ 10A/div， 18stage，maximum100A
WQ4835: 20μA/div ～ 20A/div， 19stage，maximum200A
b. Diode reversed leakage currents (IR): 0.02μA/div ~ 1μA/div,6 stage
X Axis system：
a. collector current (Vce)：10mV/div ~ 50V/div，12 stage，maximum 500V
b. Base voltage (Vbe): 50mV/div ~ 2V/div ,6 stage
c. Diode Reverse withstand voltage（Vd）：100V/div ~ 500V/div, 3 stage, maximum 5000V
step current：
WQ4833: 0.2μA/step ~ 0.5A/ step，20 stage
WQ4834: 0.2μA/ step ~ 1.0A/ step，21 stage
WQ4835: 0.2μA/ step ~ 2.0A/ step，22 stage
step voltage :10mV/step ~ 2V/ step，8 stage
step Level：0 ~ 10 steps，continuously adjustable
Ladder offset：±1step，continuously adjustable
scanning power：
a. The collector scan voltage and current （DC/AC) peak:
WQ4833: 10V(50A)，50V(10A)，100V(2A)，500V(0.2A)
WQ4834: 10V(100A)，50V(20A)，100V(5A)，500V(0.2A)
WQ4835: 10V(200A)，50V(50A)，100V(10A)，500V(0.5A)
a. Diode reversed voltage：5000V(5mA)
Maximum power consumption：
WQ4833: 200W WQ4834: 300W WQ4835: 400W
Overall dimensions：58（long）×33（width）×40（high）cm
Weight：approximately 28 kg
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