HS5859 ICL7107 Digital Ammeter Voltmeter Kit DIY
Product features:
This table has the advantages of fast reaction speed and high precision;
Clear display, intuitive reading, good stability;
Advanced and reasonable circuit design, strong anti-interference ability, can effectively inhibit high-frequency interference;
The kit features good material, good technology, beautiful appearance, long service life, easy installation and use.
Welding and assembling voltmeter for DIY enthusiasts.
Parameter description:
Operating voltage: DC5V
Working current: 35mA
Measurement accuracy: can be calibrated to obtain high precision, no parameters.
Measuring range: divided into 3 grades:
Low voltage is measured in 0-2V gear
Measure medium and low voltage in 0-20V
Range 0-200V, measure higher voltage.
PCB size: 70.6*39mm
Installation hole size: 77*40mm
Display window size: 51*24mm
Display color: Red
Required tools (not included) : multimeter, electric soldering iron, and water pliers
Range selection method: solder joint with gear selection on the board,
When the two points in 0-2V gear are welded together and the RX welding resistance value is 1K, the measuring range is 0-2V.
When the two points in 0-20V are welded together and the RX welding resistance value is 100K, the measuring range is 0-20V.
When the two points in 0-200V gear are welded together and the RX welding resistance value is 1M, the measuring range is 0-200V.
Overrange display: The first display is 1 or -1
In the kit, RX is issued in 100K and 1M, which can be welded according to your own measuring range.
The voltmeter can also be changed into an ammeter. The method of changing the electric ammeter is to reserve a 2W 0.1ω high-precision resistance welding position on the board, weld the resistance, and then RX does not need to be welded, so it is a 0-2A ammeter.
Measurement calibration potentiometer: input a voltage, and then adjust the potentiometer, the table head shows the value and the measurement value of the multimeter.
Product list:
Set 1:
1X piece set
Parts include:
PCB board x1
1N4148x3
5.1V voltage regulator diode x1
100 ohm resistance x1
270 ohm resistance x1
2K resistance x2
20K resistance x 1
47K resistance x1
56K resistance x 1
100K resistance x2
1M resistance x1
2.2MH inductance x1
104 monolithic capacitance x2
101 monolithic capacitance x2
224 monolithic capacitor x1
474 monolithic capacitor x1
10UF25V electrolytic capacitor x2
C1815x1
TL431x1
3296-202 Potentiometer x2
XH2.54-2P upright seat x1
XH2.54-2P line x1
Kf301-2-seat x1
40P chip holder x1
LT7107 Chip x1
0.56 one digit digital tube x4
Case x1
M2*6 self-tapping screws x4
Set 2:
1X voltmeter
1X line