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參數(shù)資料
| 型號： | ES51986 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 6000 COUNT AUTO DMM |
| 中文描述： | 6000計數(shù)汽車數(shù)字多用表 |
| 文件頁數(shù)： | 9/23頁 |
| 文件大小： | 286K |
| 代理商： | ES51986 |
where f
osc
is the frequency of the crystal oscillator. Thus, the counter has a 1 second time
base when a 4MHz oscillator is used. The frequency counter can select the proper range
automatically or manually. Auto-range operation extends over five decades, from 6KHz
to 60MHz The following table summarizes the full scale range of the frequency counter.
03/10/09
ES51986
6000 Count AUTO DMM
Range
FR1
FR2
FR3
FR4
FR5
Full Scale
6.000KHz
60.00KHz
600.0KHz
6.000MHz
60.00MHz
1.8
Auto power off
ES51986 has a default auto power off function. If the meter idles for more than 10
minutes, the chip automatically turns the power off. When this happens, the state of the
meter is saved. In order to disable auto power off function, power on the meter when
any of the push function, except for HOLD, is pressed down. In addition, when RS232
output is active, the auto power-off function is also disabled. The APO sign on the LCD
panel indicates whether the auto power-off is enabled or not.
Note
: Powering on the meter while pressing HOLD turns on all LCD segment until
HOLD is pressed again.
1.9
Sleep
The meter enters sleep mode after auto power off. The SLEEP pin asserts low (-3V) in
the sleep mode, and asserts high (+3V, not 0V) after re-power on.
1.10
Re-power on
After auto power-off, pushing any of the push function or changing the rotary mode can
turn on the meter again. If the meter is re-powered on by changing the rotary mode, the
saved state is cleared. If the meter is re-powered on by push functions, the chip restores
the saved state and enters HOLD mode. The LCD displays the saved value.
2.
Measurement Mode Switching
Measurement mode depends on the logic level of FC1, FC2, FC3, FC4, FC5, and KEY.
When FC5 is HIGH, the measurement modes are listed in the following table.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ES51986_11 | 制造商:CYRUSTEK 制造商全稱:CYRUSTEK 功能描述:6000 Count AUTO DMM |
| ES51988 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:3 3/4 AUTO REL/MAX/MIN |
| ES51989 | 制造商:CYRUSTEK 制造商全稱:CYRUSTEK 功能描述:3 3/4 PEAK AUTO DMM |
| ES51990 | 制造商:CYRUSTEK 制造商全稱:CYRUSTEK 功能描述:DMM Analog front end |
| ES51991 | 制造商:CYRUSTEK 制造商全稱:CYRUSTEK 功能描述:11,000 Counts ADC |
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