ES51955(5000counts)
Dual Display/Inrush
Features
•
5000 counts dual LCD display
•
128L QFP package
•
3V DC power supply
•
ADC Conversion rate : 3.3 times/s
•
Full automatic measurement
*Voltage measurement: 500.0mV – 1000V
*Current measurement: 50.00A/500.0A,
500A/5000A
*Flame rod DCuA mode measurement:
500.0uA/5000uA both manual ranges
*Smart auto check for R/S/D/C mode
Resistance: 500.0Ω~5.000MΩ
Capacitance: 5.000nF~500.0uF
(Taiwan
patent no.: 326361)
*Not contact AC electric field detection
*Frequency mode active on sub-display for ACA
500.0Hz ~ 5000Hz
*Resistance measurement: 500.0Ω – 50.00MΩ
*Capacitance measurement:
5.000nF – 50.00mF
(Taiwan
patent no.: 323347, 453443)
*Frequency counter with duty cycle display:
500.0Hz – 50.00MHz
5% – 95% (< 10kHz)
•
ZERO function for DCA mode
•
Voltage high crest factor detection
(Taiwan
patent no.: 234661)
•
Voltage & Current measured simultaneously
ACV+ACA, DCV+DCA
•
Diode measurement & continuity check
•
Auto range temperature mode(500.0
0
C /5000
0
C)
•
Temperature mode with internal scale translation
circuit from
0
C to
0
F
•
Push functions:
*Single Select key operation:
Zero for DCA
Hz for ACA
*Range change function
v2.3
1
10/06/25
*Inrush function: ACA clampmeter only
*Data hold function
*Back light function
*Semi-auto Calibration Operation
(Taiwan
patent no.: 367334)
•
Low pass filter for ACA measurement
•
Band-gap reference voltage output
•
CE selection (DC/AC 1010V, DC/AC 610V)
•
LCD segment check when power on
•
Auto power off (30min/15min)
•
Sleep state indicative signal output
•
Re-power on
•
On-chip buzzer driver
•
High Voltage (HV) danger indication
•
Low battery multi-level detection
Description
ES51955 is an integrated analog-to-digital
converter (ADC) with dual 5,000-count LCD
display, which 4-digit main-display (AC/DC
Voltage) and 4-digit sub-display (AC/DC
Current), automatic range selection, and 3V
DC power supply. ES51955 could be
designed for a clamp-meter with V & A
measurement simultaneously. Automatic
range selection is provided for voltage
(AC/DC)
measurement,
resistance
measurement,
current
measurement,
capacitance measurement, and frequency
counter. Other features include inrush
function, offset removing feature for DCA
clampmeter, data holding, duty cycle
measurement,
diode
measurement,
temperature
measurement,
continuity
checking, multi-level low battery detection,
auto power off, re-power on, backlight driver,
and buzzer output driver.