Description
Description:Kit Name: ICL7107 Voltmeter DIY KitPCB size: 70.6*39mmHead mounting opening size: 77*40mmDisplay window size: 51*24mmSoldering manual: Click here.
Electrical parameters:
Working voltage: DC5VWorking current: 35mAMeasurement accuracy: It can be calibrated to get higher precision and no parameters at present.Measuring range: divided into 3 files, 0-2V file Measuring small voltage 0-20V file measuring low voltage 0-200V, measuring higher voltage.
Range selection method: solder joints with gear selection on the board,When the two points of the 0-2V file are soldered together, and the resistance of the RX soldering resistor is 1K, the measurement range is 0-2V;When soldering 2 points of 0-20V file together, the RX soldering resistance is 100K, the measuring range is 0-20V;When soldering 2 points of 0-200V file together, the RX soldering resistance is 1M, the measurement range is 0-200V;Overrange display: first position shows 1 or -1In the kit, the RX is available in 100K and 1M, and the buyer selects the soldering according to his measurement range. This voltmeter can also be changed into an ammeter. The method of changing the current meter: the PCB reserve a 2W 0.1 ohm high-precision resistance soldering position on the board, solder this resistance, and then RX does not need to be soldered. This is a 0-2A ammeter.Display color: redTools needed to make the production: multimeters, electric irons, and water pliers are needed.
Package included:
3 x PCB board9 x 1N41483 x 5.1V Zener Diode3 x 100 ohm resistor3 x 270 ohm resistor6 x 2K resistor3 x 20K resistor3 x 47K resistor3 x 56K resistor6 x 100K resistor3 x 1M resistor3 x 2.2MH inductor6 x 104 monolithic capacitor6 x 101 monolithic capacitor3 x 224 monolithic capacitor3 x 474 monolithic capacitor6 x 10UF25V electrolytic capacitor3 x C18153 x TL4316 x 3296-202 potentiometer3 x XH2.54-2P straight seat3 x XH2.54-2P line3 x KF301-2 seat3 x 40P chip holder3 x LT7107 chip12 x 0.56 one common digital tube3 x case12 x M2*6 self-tapping screws
