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PDF FS9922-DMM4 Datasheet ( Hoja de datos )

Número de pieza FS9922-DMM4
Descripción Integrated Circuits
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FS9922-DMM4 datasheet

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FS9922-DMM4 pdf
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FS9922-DMM4
1. General Description
FS9922-DMM4 is a high performance, low power consumption and 3 6/7 digits (6000 Counts) dual
Analog to Digital Converter with a built-in microprocessor. It includes a 8 bits microprocessor, low noise and
the OPAMP of high stability, AC rectifier OPAMP, voltage doubling and regulated voltage, highly regulated
bandgap, auto measurement switch and function control circuit, buzzer driver circuit, clock oscillation circuit,
backlight display control circuit, LCD driver circuit and so on.
Built-in dual Analog to Digital Converter , one is a high accuracy ADC for main measurement; the other
is a high speed ADC whose measurement result shows by a 61 segment analog section bar that can respond
fast, the analog indication owns the property of immediate response and can provide the fast measurement
and monitoring of instant signals.
With the microprocessor, FS9922-DMM4 can do the logic function control via the I/O ports. By
selecting the codes of MEA1MEA5 pins can realize various functions during measurement.
By triggering the keys of the settings of SELECT, RANGE, REL/RS232, HZ/DUTY, HOLD/LIGHT,
MAX/MIN keys, you can realize the functions of function switch, measurement mode select, relative value
measurement, frequency/duty cycle measurement, reading hold, MAX/MIN value hold, backlight display,
RS232 output and so on.
With the auto power off function, when there is no action on the mode switch or keys of the meter
within 15 minutes, the system will enter into the sleep mode automatically to save the power. This function
can also be cancelled during use.
FS9922-DMM4 has LCD driver circuits, which is designed for driving LCD.
FS9922-DMM4 is made by the large integrated circuit technology, and therefore greatly rises up the
reliability of the product. It makes the design simple, the volume small, low power consumption by using
3V power source, and convenient to use the power supply of battery, especially suitable for the application on
the palm mode meter.
FS9922-DMM4 is a microprocessor-embedded and multifunctional measuring dual ADC; fewer
external components added can form a high accuracy, multifunctional and low cost measuring meter.
2. Features
z Max. Display: 6000 Counts (Frequency 9999), Bar graph 61 segments.
z Converter Rate: 3 times/sec; Bar graph: 30 times/sec.
z Measuring Mode: Auto/Manual measurement.
z Pole Indication: Auto.
z Operation Voltage: 2.4V~3.6V.
z Operation Current: 2mA
z Low Power Indication: about 2.4V.
z Buzzer Frequency: about 2.7kHz.
z AC Rectifying: Embedded OPAMP.
z Current Resistance: µA is 50; mA is 0.5; A is 0.005.
z Function Keys: SELECT, RANGE, REL/ RS232, HZ/DUTY, HOLD/ LIGHT, MAX/MIN.
z Data Output: RS232 (2400bps ).
z Auto Power-off: 15min. (can be cancelled
z Unit Symbol and Backlight Display.
Rev. 1.1
5/39

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FS9922-DMM4 arduino
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FS9922-DMM4
9. Measuring Modes Select
9.1 Coding Table
MEA1MEA5: no connection is “1”; connect to INT is “0”
MEA5 MEA4 MEA3 MEA2 MEA1
Mode
SELECT REL HOLD Hz RANGE MAX
Duty
MIN
1 0 1 1 0 AC V (6.000V~6000V)
●● ●
1 1 0 1 0 DC V (600.0mV~6000V)
●●
●●
111
0 0 DC/AC mV
DC/AC
●● ●
(60.00mV/600.0mV)
1 0 0 0 1 DC / AC
DC/AC
●● ●
V(600.0mV~6000V)
1 0 0 1 0 Ohm / (Hi) Ohm
/(Hi)Ω ● ●
●●
1 0 1 0 0 Hz/Duty
●●
1 1 0 0 0 Diode/Beeper
D/B
1 0 0 1 1 Cap.
●●
1 0 1 0 1 Ohm/ Diode/Beeper/cap. /D/B/C ● ●
●●
1 1 0 0 1 RPM / Hi Hz
RPM / Hz
1 0 1 1 1 /-273.0~+400.0/
●●
/-273~+ 4000℃)
●●
1 0 0 0 0 HFE
110
1 1 DC/AC µA(600.0µA
DC/AC
●● ●
/6000µA)
1 1 1 0 1 DC/AC mA
DC/AC
●● ●
(60.00mA/600.0mA)
111
1 0 DC/AC A (6.000A/60.00A) DC/AC ● ● ●
0 0 1 1 0 AC V (6.000V~6000V)
●● ●
0 1 0 1 0 DC V (600.0mV~6000V)
●●
●●
0 1 1 0 0 Ohm/Beeper
/B ● ●
●●
0 0 0 0 1 AC/DCmV
AC/DC
●● ●
(60.00mV/600.0mV)
0 0 0 1 0 AC/DC V
(600.0mV~6000V)
AC/DC
●● ●
0 0 1 0 0 AC/DC A(6.000A)
AC/DC
●● ●
0 1 0 0 0 AC/DC A(60.00A)
AC/DC
●● ●
0 0 0 1 1 AC/DC A(600.0A)
AC/DC
●● ●
0 0 1 0 1 AC/DC A(6000A)
AC/DC
●● ●
0 1 0 0 1 ADP (6000)
0 0 1 1 1 ADP 600.0
●●
●●
0 1 0 1 1 ADP (60.00)
●●
0 1 1 0 1 ADP (6.000)
0 1 1 1 0 /-273.0~+400.0/
/-273~+ 4000℃)
●●
●●
●●
1 1 1 1 1 /
/
●●
000
0 0 AC/DC A (6.000A/60.00A) AC/DC ● ● ●
0 1 1 1 1 Ohm/Beeper/Diode
/B/D
●●
●●
Note: “” means the function key in the column is in operation
Rev. 1.1
11/39

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