Resistance method of inspection method, is to determine the transmitter failure is one of the important methods, resistance inspection method is in the absence of electricity, the use of multimeter resistance file to detect the transmitter circuit and part of the circuit of the input and output resistance is normal; each resistor element is open, short circuit, resistance value changes; capacitor breakdown or leakage; inductive coils, transformer disconnection, short-circuit; semiconductor devices positive and negative resistance; each Integration block pin to ground resistance; and to roughly determine the transistor β-value; tube, oscilloscope tube without inter-polar short circuit, filament is intact, and so on. In the use of resistance method to detect transmitter failure, need to pay attention to the following issues: First: As the circuit has a number of non-linear components, such as transistors, large-capacity electrolytic capacitors, etc., using the resistance method to measure the resistance between a two-point resistance, because of these non-linear components are connected, so pay attention to the red and black polarity of the multimeter, because different polarity of the measured results are different. Second: to avoid using Ω × 1 block (higher current) and Ω × 10K block (higher voltage) to directly measure the ordinary small current and low voltage transistors, integrated circuits block, so as not to cause damage. Third: most of the components measured in the transmitter to be involved in the circuit (series or parallel) many other components. Therefore, for not direct breakdown but leakage or resistance resistance value is relatively large occasions, to be measured components to be disengaged before checking the measurement. For only two lead wire resistors, capacitors and other components, as long as a lead off that is open, and for three lines such as crystal transistors, etc., should be removed from the two lead wires. Star Instrument Sensor Manufacturing Co., Ltd. is a high-tech enterprise integrating R&D, production and sales. Specializing in the production of pressure transmitters, level transmitters, temperature transmitters, temperature and humidity transmitters, differential pressure transmitters, soil moisture transmitters, 3051 transmitters and related instrumentation accessories. Many products under the brand of Star Instruments have obtained a number of patents issued by the state, such as CE certification, IS9001 certification, SGS certification, TüV SüD certification, explosion-proof certification and so on. For product consultation, product customization, agency, technical inquiries, quotes, etc., please contact Star Instruments: 400-600-4496 !