ES238 Datasheet, PDF (1/37 Pages) Cyrustek corporation – 6000 Counts DMM / Peak

ES238
6000 Counts DMM / Peak
Features
 6,000 counts LCD display with 31 analog bar-graph
 LQFP 128L package
 3V DC power supply
 Slow ADC Conversion rate : 3 times/s
 Bar-graph ADC conversion rate : 30 times/s
 Full automatic measurement
＊ Voltage measurement : 600.0mV, 6.000V – 1000V
＊ Current measurement : μA/mA/A
＊ Frequency with Voltage or Current :
＊ Resistance measurement :
60.00Ω – 60.00MΩ
＊ Capacitance measurement :
6.000nF – 60.00mF
( Taiwan patent no.: 323347, 453443 )
＊ Capacitance measurement for Clampmeter mode :
6.000nF – 60.00mF
＊ Smart auto check for R / S / D / C mode
Resistance : 0.0Ω – 6.000MΩ
(Buz. On when R < 30Ω)
Capacitance : 0.500nF – 600.0uF
(Taiwan patent no.: 326361)
＊ Not contact AC electric field detection
＊ Frequency counter :
600.0Hz – 60.00MHz
＊ Duty cycle measurement :
5% – 95% (< 10kHz)
 Diode measurement & continuity check
 Hazardous AC/DC voltage (HV) indication
 4 ADP modes with external reference voltage and
independent “ADP” user-defined segment on LCD
 Temperature mode with internal scale translation
circuit from ⁰C to ⁰F
 K-type thermocouple reference table compensation
(-200~1350 ^oC)
 Push functions :
＊ Peak-hold function
＊ VAHz function
＊ MAX/MIN function
＊ Relative function
＊ Zero function: DCA clampmeter only
＊ Back Light function
＊ KEY function
＊ Data Hold and delayed-hold function
＊ Range change function
＊ Semi-auto calibration operation
(Taiwan patent no.: 367334)
 Low pass filter mode for ACA/ACV measurement
(Taiwan patent no.: 362409)
 Band-gap reference voltage output
 Voltage overflow selection ( DC / AC : 1010V, DC /
AC : 610V)
 Serial data output ( RS232 format )
 LCD segment check when power on
 Auto power off ( 30min / 15min )
 Sleep state indicative signal output
 Re-power on
 On-chip buzzer driver
 Low battery detection
 Description
ES238 is an integrated analog-to-digital converter
with 6,000-count LCD with bar-graph display,
automatic range selection, and 3V DC power
supply. Automatic range selection is provided for
ACV/DCV measurement, resistance measurement,
current measurement, capacitance measurement,
and frequency counter. Expensive and bulky
mechanical range switches are not required. Other
features include peak-hold function, relative value
display, offset removing feature for DCA clamp
mode, data holding, maximum and minimum
value holding, duty cycle measurement, diode
measurement, peak-hold function, temperature
measurement, continuity checking, low battery
detection, auto power off, re-power on, backlight
driver, buzzer driver and RS232 data output.
V 2.2
1
2015/12/15