ES51931
22,000 Counts Auto DMM
Features
•
22,000 counts LCD driver with 46-segment
bargraph display
•
Conversion rate : 2 times/s
•
Full automatic measurement
*Voltage measurement:
Manual 220.00mV / Auto 2.2000V – 1000.0V /
Auto 220.00 – 1000.0V
*Current measurement:
μA/mA/A
*Resistance measurement:
220.00Ω – 220.00MΩ
*Capacitance measurement:
22.000nF – 220.00mF(25sec)
(Taiwan
patent no.: 323347, 453443)
*Frequency counter
22.00Hz – 220.00MHz
•
Current modes for clamp meter
•
Duty cycle measurement (5.0% ~ 94.9%)
•
Diode measurement
•
Continuity check
•
ADP mode with independent reference voltage
•
Temperature mode with internal scale translation
circuit from
o
C to
o
F
•
Push functions
*Range change function
*VAHZ function
*Relative function
*Zero function in manual DCA mode
*Data
hold function with delay hold feature
*MAX/MIN function
*Back-light function
*KEY function
•
Programmable LCD segment display
Ver. 1.2
1
10/05/27
•
Support a selectable low pass filter 3dB bandwidth
for ACV & ACA measurement
(Taiwan
patent no.: 362409)
(China
patent no.: 1363073)
•
SHIFT function
•
High-crest-factor signal detection
(Taiwan
patent no.: 234661)
•
Band-gap reference voltage output
•
CE selection (610V, 1010V or 1500V)
•
Serial data output (RS232 format)
•
LCD segment check when power on
•
Auto power off with idle time selection
•
Sleep output
•
Re-power on
•
On-chip buzzer driver
•
3V DC power supply
•
Low battery detection for 3V or 9V battery
Description
ES51931 is an integrated analog-to-digital
converter (ADC) with 22,000 counts LCD
display, automatic range selection, and 3V DC
power supply. Automatic range selection is
provided for voltage (AC/DC) measurement,
resistance measurement, current measurement,
capacitance measurement, and frequency
counter. Expensive and bulky mechanical
range switches are not required. Other features
include REL/Zero function, data holding,
maximum and minimum holding, diode
measurement,
temperature
measurement,
continuity checking, low battery detection,
auto power off, re-power on, and RS232 data
output.