|Instrument firmware upgrade and precautions
Three purposes of instrument firmware upgrade are as follows:
Function improvement: In the wake of the digital design of instruments, in order to launch products as quickly as possible to seize the market, most instrument manufacturers usually launch functions that meet 80% of market demands. Software engineers then use future instrument firmware version upgrades to slowly implement the functions expected in the early stages of design after launch. At this time, many free new functions are available through firmware upgrades.
Customized functions: In response to the special needs of customers, we provide customers with customized functions in standard models. These customized functions also need to be upgraded because they are different from the standard firmware.
Correct errors: Modern instruments have complex functions and errors are inevitable. After receiving feedback from end users, errors will be corrected in future firmware.
Notes on instrument firmware upgrade:
If upgrading via a USB, please note that your USB flash drive is compatible with the instrument.
Ensure the integrity of the downloaded firmware (please be sure to join GW Instek Membership to ensure the integrity of the firmware downloaded from the official website)
The instrument must not be powered off during the upgrade.
|What are the test paths for the radio frequency (RF) part of the EMC test?
Conducted EMI test
The power cable of the DUT is connected to the simulated power supply impedance network (LISN) and the radio noise level of the product to be tested is transmitted to the measurement receiver to obtain the noise level.
Under normal use, the radio of the DUT is received over the air to an antenna of 3M or 10M away, and then it is transmitted to the measurement receiver to obtain the noise level.
Conducted EMS test
The noise test mixed in the power cable and the control cable is used to test the interference of the DUT after coupling the noise and the power source, such as using an impulse test.
Radiated EMS test
Simulate the interference of the DUT exposed to electromagnetic waves, and transmit the required RF power by the antenna. The common test range is 80MHz~1GHz, and 1V/m ~ 10V/m with AM 80% modulation signal.
|What is the complete EMC test content?
|The difference between EMC certification and LVD certification.
|What is CE certification?