1X GM328A Transistor Tester Diode Capacitance ESR Voltage Frequency Meter Wave

$11.88 Buy It Now or Best Offer
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Seller Store kingelectronics15
(68451) 100.0%,

Location: 深圳, 廣東省
Ships to: US,
Item: 225213827282

Restocking Fee:No
Return shipping will be paid by:Seller
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
Unbranded:Unbranded
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1X GM328A Transistor Tester Diode Capacitance ESR Voltage Frequency Meter WaveProduct Image: Product Description: Product features: Digital LCD display, easy to read, can display measurement data and graphics Rotary switch control, easy to use for key measurement Press and hold the test button to exit the frequency measurement function. The frequency measurement range is from 1Hz to above 1MHz. When the measured frequency is lower than 25KHz, the cycle is displayed Square wave generator, with multi gear square wave frequency selectable. Rotate the left or right test button to switch to different square wave frequencies, and long press the test button to exit the square wave generator Pulse signal generator, turn left or right test button to adjust the pulse duty cycle from 1% to 99%. Press and hold the test button to exit the pulse signal generator Use 5V Type-c power supply interface for power supply, and customers can also weld 9V battery interface for power supply Automatic shutdown, shutdown current is only about 20nA Note: Before testing the capacitor, first discharge the capacitor, and then insert it into the test base for measurement, otherwise the microcontroller of the tester may be damaged. Input voltage: DC5V Working voltage: about 30mA, Control of transistor tester The tester is controlled by a rotary encoder switch, The rotary encoder switch can be operated in 6 ways: short press, long press, left rotation, right rotation, press and hold left rotation, press and hold right rotation. Press once in the shutdown state to turn on the power and start the test. If no device is detected after one test. Press and hold the switch or rotate the switch left and right to enter the function menu. After entering the function menu, the left or right switch can be selected above or below the menu item. To enter a function item, press the switch briefly. When you need to exit from a function, press and hold the switch. Calibration: The tester calibration is used to eliminate the error of its own components and make the final test results more accurate. Calibration is divided into quick calibration and full function calibration. Operation method for quick calibration: short circuit the three test points TP1, TP2 and TP3 with wires, then press the test button, and observe the screen at the same time. The screen color will become white on a black background, and the prompt message « Selftest mode..? » will appear After that, press the test button to enter the fast calibration process; If the prompt « Self test mode..? » appears After that, if no key is pressed within 2 seconds, a normal test process will be conducted, and the resistance values of the wires shorting TP1, TP2, and TP3 test points will be displayed finally. After entering the quick calibration process, some data will appear on the screen, regardless. Wait until a flashing string appears on the screen “isolate Probes!” After that, remove the wires shorting TP1, TP2 and TP3. The quick calibration is completed until the string « Test End » appears on the screen. For the first calibration, use the full function calibration mode. Full function calibration needs to be entered from the function menu, and another 220nf capacitor needs to be prepared. Full function calibration performs a more comprehensive calibration process and takes longer. After entering the function menu, turn the test button to the menu item « Selftest », and then press the test button to enter the full function calibration process. The flashing string « short Probes! » first appears on the screen, At this time, just like rapid calibration, use wires to short circuit the three test points and wait for the calibration process. The flashing string « isolate probes! » appears on the screen When the string « 1 – | | – 3>100nf » appears on the screen, the prepared 220nf capacitor is installed on test points TP1 and TP3. Wait until the screen prompts « Test End », and the full function calibration process is completed. Package list: GM328A transistor tester* 1 Package Included : 1pcs FeedbackWarrantyShipmentFeedbackWe appreciate your feedback very much. As it will motivate us do better. If you have any questions with our goods or service, Please kindly contact us firstly before leaving negative feedback. Thank you in advance Warranty1. All merchandise will be carefully test before shipping. We will try our best to avoid any quality problem. 2. We promise warranty for quality in one year and we will repair it free of charge. The returning shipping should be paid by customer. 3. If you are not satisfied with the product, Please contact us. We’ll provide you a satisfying solution.Shipment1.Normmly we will send the goods within 1-3 working days after your payment is verified . 2.Please check if the goods are in good condition and sign before the delivery man leaves.If you find the product is lost or damaged on the way. Please take photo and let the delivery men confirm it. Then we will help you let the shipping company compensate you.On Oct 20, 2022 at 07:08:10 PDT, seller added the following information:

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1X GM328A Transistor Tester Diode Capacitance ESR Voltage Frequency Meter Wave

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