This instrument adopts a high-precision adjustable DC constant current and constant voltage source system, with adjustable digital display current and voltage. It is equipped with a Chinese and English operation panel, and a high-precision digital display millivolt meter can more intuitively read voltage drop data. The digital display ammeter, current adjustment knob, test port and output port are separated, and the start button and reset button control the opening and closing of the system. The operation is simple, and the design structure meets ergonomic requirements; Option: A 0.2 level standard shunt can be used for calibration to solve the testing deviation caused by inaccurate instruments during the testing process. It meets the testing requirements of domestic and international standards for wire harness and connector products, and is also suitable for voltage drop detection of products with similar characteristics.
2、Meet standards:：
Meet standards:：SAE/USCAR38 2009 QC/T 730-2005 ;ISO6722：2002 GB/T 2951—1997; GB/T 3048—1994 QC/T29106-2004; QC/T413-2002 ;QC/T413-2002;Simultaneously meeting the requirements and testing specifications of national standards such as Germany, France, South Korea, Japan, etc., the voltage drop experiment is conducted according to QC/T29106-2004 standard 5.7. QC/T29106-2004 standard: 5.7 The voltage drop experiment at the crimping point between the terminal and the wire is shown in Figure 2. The measurement is made between two points at the midpoint of the crimping point between the terminal and the wire, which is 75mm long and the wire is firmly brazed after removing the insulation layer, After deducting the voltage drop of a 75mm long wire, it is the voltage drop at the crimping point between the terminal and the wire. When two or more wires are connected to a terminal at the same time, current is applied to each wire to measure the voltage drop
3、 Quality control preparation knowledge:
1. Instructions for use, fixture accessories.
2. Attention: After using the device, it should be cleaned and stored for future use.
3. Instruments are prohibited from being stored in areas with the following conditions
1) Unstable work surface 2) Places with direct sunlight 3) Wet places 4) Corrosive air environment 5) Air pollution and heavy dust
4、 Main parameters:
1) Input voltage: AC220V+10%, 50/60Hz
2) Working current: DC0-100A, adjustable at will, displaying 0.1A
3) Open circuit voltage: DC 0-30V, adjustable at will, display accuracy 0.1V
4) Voltage drop range: 0 ^ 1000/999.9mV
5) Voltmeter accuracy: ± 0.5%+4 half word resolution: 0.1mv
6) Ammeter accuracy: ± 0.5%+3 half word resolution: 0.1A
7) Operation interface: Chinese and English integrated board
