• Glossary

Relative mode: Eliminate low resistance or impedance on the test leads during capacitance measurements
When a multimeter is used to measure resistance, the test leads will produce impedance. The probes should be short-circuited and the multimeter should enable the relative mode to eliminate the impedance. When the relative mode is enabled, the multimeter will store existing reading, reset display to zero and set a relative reference point to measure against the next reading.

Communication protocols are agreements between communication parties on data transmission control.
They make uniform provisions on data format, synchronization mode, transmission speed and step, error inspection and correction mode and control character definition.
Computers must use the same language to transmit information to each other.
Uni-Trend’s products generally fall under the USB port.
Common communication protocols include RS232, RS485, USB, CAN, optical fiber, Ethernet, etc.