LQ-9101
User's Manual
6.2 C key + power on
○
The bridge to enter the test status screen * is characterized by five significant digits to display small
fonts, multi-parameter display This function is not designed for the user. It is mainly for the purpose of
calibrating the meter to view all the results.
Users may sometimes want to see more than the four valid digits of the normal situation, you can
enter here to see five significant figures.
6.3 E key + power on
○
normal operation, the level select key function is assigned a phase slide function. Each time the, the
phase of the measurement source signal moves back one step to achieve the free axis movement. By
changing the free axis, observe the phase angle. The maximum phase error is about 0.05° at 10KHz, and
the maximum phase error is about 0.005° at 1KHz and below. This function is meaningless to the user and
is mainly used to check the phase error caused by the distortion of the bridge when debugging.
6.4 M key + boot
○
on the ruler interface, which is mainly used for positioning reference when installing the display screen.
At the same time, the contrast of the display bridge's own machine number display screen is also
controlled here. Bridge electrical factory before the appropriate contrast adjustment, the contrast when the
user is not considered appropriate, or replaced with a new display, the user can adjust. The current state,
○
C button is to increase the contrast, E button is contrast weakened ratio. After adjusting properly, turn
○
off. When you turn the device back on, the adjusted contrast is effective.
6.5 F + E key + boot
○
○
into BOOT function, see description in 5.4 Firmware Update.
Chapter 7 FAQ
7.1 Under what circumstances open circuit, short circuit clear is very important?
Open, short circuit clear the impact on the measurement result, for the main parameters of the
component *, only when measuring very high impedance or very low impedance Importantly, the 10Ω-
500KΩ segment is not important.
Opening and short-circuit clearing also have an effect on the secondary parameters. When the series
equivalent parameter Rs or Xs has a relatively small term, if the high Q component Rs is small, it is
necessary to reconfirm whether the short-circuit clearing is qualified, when the parallel equivalent
parameter Rp or When both items of Xp are relatively large, it is necessary to reconfirm whether the open
circuit is cleared or not.
7.2 Under what conditions do you need to re-open or short-circuit clear?
Under the condition of the determined measurement method* and level level*, do a thorough open
and short-circuit clearing for each frequency. Afterwards, as long as you do not change the level and
measurement method, do not Need to be cleared every time. Change the measurement method or level,
