ICL7107 DC 5V Voltmeter DIY Kit DIY Loose Parts Board Voltage Meter Tester
(a) The meter has a fast response time and high accuracy.
Clear display, intuitive reading and good stability.
advanced and reasonable line design, strong anti-interference ability, can effectively suppress high frequency interference.
Kit with good materials, good workmanship, beautiful appearance, long service life, easy to install and use, etc.
Suitable for DIY enthusiasts welding assembly of voltmeters.
Working voltage: DC5V
Working current: 35mA
Measuring accuracy: can be calibrated to get higher accuracy, no parameters available for now.
Measuring range: divided into 3 grades:
0-2V gear Measuring small voltages
0-20V gear Measuring low and medium voltages
0-200V gear, measuring higher voltages
PCB size: 70.6*39mm
Meter head mounting opening size: 77*40mm
Display window size: 51*24mm
Display colour: red
Measurement range selection method: there are soldering joints on the board for gear selection.
When soldering the 2 points of the 0-2V grade together, the measuring range is 0-2V when the resistance value of the RX soldering resistor is 1K.
When soldering together 2 points in the 0-20V range with an RX solder resistance of 100K, the measurement range is 0-20V.
When soldering together 2 points of the 0-200V class, the measuring range is 0-200V when the resistance value of the RX solder resistor is 1M.
Over-range display: first display 1 or -1
In the kit, RX is issued in 100K and 1M, you can choose to weld according to your measurement range.
This voltmeter can also be changed into an ammeter, change the electric ammeter method: the board reserved a 2W 0.1 ohm high-precision resistor welding position, weld this resistor on, and then RX without welding, so that is a 0-2A ammeter Oh.
Measuring the role of the calibration potentiometer: input a voltage, and then adjust this potentiometer, the meter head shows the same value as the multimeter measurement value.
Set 1
1X loose parts set
Loose parts include
PCB board x 1
1N4148 x 3
5.1V voltage regulator diode x 1
100 Ohm resistor x 1
270 Ohm resistor x 1
2K resistor x 2
20K resistor x 1
47K resistor x 1
56K resistor x 1
100K resistor x 2
1M resistor x 1
2.2MH inductor x 1
104 monolithic capacitor x 2
101 Monolithic capacitor x 2
224 Monolithic capacitor x1
474 Monolithic capacitor x1
10UF 25V electrolytic capacitor x2
C1815x1
TL431x1
3296-202 potentiometer x2
XH2.54-2P straight holder x1
XH2.54-2P cable x 1
KF301-2 holder x 1
40P chip holder x 1
LT7107 chip x 1
0.56 bit common positive digital tube x 4
Meter case x 1
M2*6 self-tapping screws x 4
1X voltmeter
1X wire
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Am 26.12.2022 hat der Verkäufer die folgenden Angaben hinzugefügt: