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November 14, 2015

Component Tester FISH 8840 Review

at 7:21 pm. Filed under Cool Gadgets, Electronic Hacks, Reviews

Component_Tester_FISH8840_9494

 

This is an inexpensive component tester called the FISH 8840 which you can find from many online eBay retailers for around $30. The interface is very simple, attach a device to be tested and press the test button. It turns off after about 20 seconds, pressing the off button puts it into sleep mode immediately. There is a ZIF socket that allows you to insert leaded devices and pads that allow you to press SMD devices directly onto the tester. Their are number 1 through 3 on the tester where you connect the device under test to and then the screen will display the recognized component with the lead numbers on a component schematic picture. There seems to be an issue with the capacitor testing mode with a range of values, I will discuss this with the seller to see what the resolution to this is. I have seen this tester work fine with capacitors so I think it is just something with this one. You can see the features and functions below.

 

“NEW Function:
1:Automatic detection of NPN and PNP transistors, n-channel and p-channel MOSFET, diode (including double diode), thyristor, transistor, resistor and capacitor and other components
2: Automatic test the pin of a component, and display on the LCD
3:Can detect the transistor, MOSFET protection diode amplification coefficient and the base to determine the emitter transistor forward biased voltage
4: Measure the gate and gate capacitance of the MOSFET threshold voltage
5:Use 12864 liquid crystal display with green backlight
Size:140*90*55MM
Specifications: For you reference
1 two -button operation, automatic shutdown .
2,Only 20nA shutdown current.
3,Automatically detect NPN, PNP bipolar transistors , N -channel and P -channel MOS FET, JFET , diodes , two diodes, thyristors small power unidirectional and bidirectional thyristor.
4,Automatic identification components pin arrangement .
5,Measuring bipolar transistor current amplification factor and base – emitter threshold voltage.
6,Via the base – emitter threshold voltage and high current amplification factor to identify Darlington transistors.
7,Can detect bipolar transistors and MOS transistors protection diodes.
8,Measuring the gate MOS FET threshold voltage and the gate capacitance.
9,Can simultaneously measure two resistors and resistor symbol is displayed. Displayed on the right with a decimal value of 4 . Resistance symbol on both sides shows the pin number. So you can measure the potentiometer. If the potentiometer wiper is not transferred to an extreme position , we can distinguish the middle and both ends of the pin.
10,Resistance measurement resolution is 0.1 ohms , 50M ohms can be measured .
11,Can measure capacitanceCan measure capacitance of 30pF-100mF , resolution 1pF.
12.2uF more capacitors can simultaneously measure the equivalent series resistance ESR values. The two can be displayed with a decimal value , resolution 0.01 ohms.
13,Can be in the correct order and the diode symbol display two diodes , and gives the diode forward voltage.
14.LED is detected as a diode forward voltage higher . Combo of the LED is identified as two diodes.
15,Eeverse breakdown voltage is less than 4.5V Zener diode can be identified.
16,Can measure a single diode reverse capacitance. If the bipolar transistor connected to the base and collector or emitter of a pin , it can measure the collector or emitter junction reverse capacitance .
18 can be obtained with a single measurement rectifier bridge connection.
Notice: Before measuring capacitance , the capacitor must be discharged , otherwise very likely damage the meter .”

 

 

 


 

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One Response to “Component Tester FISH 8840 Review”

  1. Component Tester FISH 8840 Review | Electronics Infoline Says:

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