Product Features:
1. LCD display, high-speed thermal printer.
2. This instrument features small size, light weight, strong anti-interference capability, high precision, easy operation, and comprehensive protection functions.
3. Human-machine dialogue with full keyboard operation, intelligent throughout the entire working process.
4. Utilizes precision instrumentation operational amplifiers and high-precision quadruple integration A/D converter, combined with a high-performance 16-bit microcontroller. During measurement, the system automatically switches amplification factors based on signal strength, ensuring the accuracy of the product's test results.
5. This product also features a real-time calendar clock, providing a time basis for printing and saving data.
6. Data storage and historical data browsing functions, capable of storing large amounts of data, with power-off protection.
Panel Structure
Technical Parameters:
1. Measurement Range: 0~4mΩ (50A gear) 0~2mΩ (100A gear) 0~1.33mΩ (150A gear) 0~1mΩ (200A gear)
2. Test Current: DC 50A, 100A, 150A, 200A fixed output
3. Measurement Accuracy: ±(0.5% rd+2d)
4. Continuous Working Time: 5s~599s
5. Display Mode: Large screen Chinese LCD display
6. Communication Method: RS232 serial port
7. Working Power Supply: AC220V±10% 50Hz
8. Total Power: 1200W
Operating Procedures:
1. Connect wires according to the four-terminal method.
2. Turn on the power.
3. Press the measurement button (if the current display A value is less than 100A, it can be corrected via the panel current fine-tuning).
4. After the measurement value is displayed, save the data if needed.
5. After measurement, please turn off the power.
6. Please take care of the test clamps.
Instructions for Use:
1. According to the four-wire measurement method, use the dedicated test leads to connect the test object to the instrument panel. Note that the voltage measurement leads should be connected inside the current output leads.
2. Connect the AC220V power supply (note: the third wire of the power input, i.e., the protective ground, must be connected to the earth), press the power switch. At this time, the ammeter and resistance meter display "000" (one digit may be allowed to fluctuate).
3. Press the measurement switch, adjust the current output knob (clockwise) until the ammeter displays "100.0", then read the number on the resistance meter, which is the resistance value of the test object, and record it. (If "1" is displayed, it indicates the measured circuit is over-range).
4. After testing, adjust the current output knob (counterclockwise) to the minimum, reset the measurement switch, and then cut off the power switch.
5. To repeat the test, simply reset the measurement switch, re-clamp the test clamps, and press the measurement switch again.
Keywords: Switch Circuit Resistance Tester (200A), Switch Circuit Resistance Tester (200A)
