Brand Name:icchipcn.com
Condition:New
Type:Voltage Regulator
Model Number:10A Digital Voltmeter Ammeter
Dissipation Power:Digital Only
is_customized:Yes
Operating Temperature:Temperature
Application:Computer
Package:SMD
Product introduction:
M430 is a voltage, current and power measuring instrument. It can only measure and display the voltage, current and power of the circuit under test. The displayed value can be fine-tuned through an adjustable resistance. The actual voltage and current of the loop has no effect.
Do not use high voltage above 30V when using, otherwise it will cause overvoltage damage to the product.
The 10A range product comes with a shunt resistor, and there will be a short circuit at the test end of the direct current measurement. As long as the meter is connected in series with the load according to the wiring diagram, it can be used normally.
Operating Voltage:
The working voltage of the instrument is DC 4~30V, 5~12V is recommended
The thin red line is the positive pole of the working power supply, and the thin black line is the negative pole of the working power supply, which belongs to the common ground with the thick black line.
When using, the limit voltage connected to the thin red and black wires cannot exceed 30V, and 12V power supply is recommended
Measuring range:
The voltage measurement range is 0~100V, the display mode below 10V is 0.00V, the voltage starts at 0.2V, and the error range is ±1V.
The current measurement range is 0~10A, the current starts at 0.03A, and the error is ±0.1A
Voltage display fine-tuning
It is the display fine adjustment, not the major adjustment, the adjustment is the display voltage, but the actual voltage cannot be adjusted!
Find a flat-blade screwdriver and twist the V-ADJ round adjustable resistor to fine-tune the voltage
Current display fine-tuning
It is the display fine adjustment, not the major adjustment, the adjustment is the display current, but the actual current cannot be adjusted!
Find a flat-blade screwdriver and twist the A-ADJ round adjustable resistor to fine-tune the current
Standard wire:
XH-2.54-3P red, black and yellow wire (thin wire total length: 155mm)
Thin red line: positive pole of the working power supply, cannot connect to a power supply above 30V
Thin black wire: the negative pole of the working power supply, and the thick black wire on the construction site, do not need to be connected when sharing the power supply
Thin yellow line: voltage test line, connected to the positive pole of the test circuit power supply
VH-3.96-2P red and black wire (thick wire total length: 165mm) current test wire
Thick red wire: the positive pole of the current test, which is connected to the negative pole of the load.
Thick black wire: current test negative, connect to power negative, connect first and then disconnect when disconnected
No-load current does not return to zero processing method:
For zero-load zeroing, you need to prepare a pointed tweezers. Do not energize the load circuit. Power off the fine red and black. Insert the tweezers into the two round holes next to the I-ADJ-Z, power on the fine red and black, wait for 5 seconds, and remove the tweezers. , so it is forced to zero, if not, repeat the operation several times.
Product common problems and solutions:
Q: Use a multimeter to measure the short circuit of the thick red and black wires
Answer: Parallel shunt resistance, normal situation, just use the wiring according to the wiring diagram
Q: The digital tube does not light up when connected
Answer: Disconnect the thick wire, connect the thin red and black to the 5~20V DC power supply, if it can light up, it is a wiring problem. Check the wiring according to the wiring diagram. If it can't light up, it means the watch is broken.
Q: When the load is not connected, the current has a display reading
Answer: This is no-load non-return to zero, and the solution is to find the above
Q: When measuring solar energy, it does not start and needs to be restarted before it can be used
Answer: The working voltage is not enough at one time, and the independent power supply can be used
Q: The voltage and current displayed by the measurement are inaccurate
Answer: Fine-tuning adjustable resistor
Q: The displayed current is not stable, it bounces back and forth, and the amplitude of the beating is quite large
Answer: It is normal for the inductive load current to jump; do not connect the thin black wire for the measurement of the shared power supply; if the above two are not the same, there is a high probability that the sampling resistor is faulty, and a multimeter should be used to measure it.
Q: The voltage display is unstable and jumps back and forth
A: The working power supply is not pure DC. A filter capacitor should be connected in front of the thin red wire; it may also be that the sampling resistor is faulty or you are poking too hard when trimming the voltage, and the adjustable resistor is broken! to measure
Q: The digital display is incomplete and the strokes are missing
Answer: The probability of missing strokes in some numbers is that the digital tube is broken. It is necessary to replace the digital tube. There is a high probability that the regular missing strokes are due to tin beads or virtual soldering. Clean up the pins of the chip.
Package Contents:
