Input from FREQ
Duty cycle=50%
Sensitivity in Frequency mode
600
—
mV(Vpp)
ppm/℃
µs
100KΩ
resister
Reference voltage temperature
coefficient
Between
VRH
—
TCRF
TPW
50
0℃<TA<70℃
4MHz crystal
oscillator
Minimum pulse width for Peak
Hold feature
100
Note:
1.Full Scale
2.Above specification from 11nF to 1.1uF ranges are specified under REL mode.
Function Description
1. Operating Modes
1.1 Voltage Measurement
A re-configurable voltage divider automatically provides a suitable range in voltage
measurement mode. The following table summarizes the full-scale ranges in each
configuration.
Configuration
VR1
Full Scale Range
110.00mV
1.1000V
Divider Ratio
1
Resister Connection
R1
VR2
VR3
VR4
VR5
1/10
1/100
1/1000
1/10000
R2 / (R1+R2)
R3 / (R1+R3)
R4 / (R1+R4)
R5 / (R1+R5)
11.000V
110.00V
1100.0V
Note: 110.00mV range only exists in manual mode.
1.1.2 CE selection
ES51916 has a CE selection feature archived by configuring an CESEL pin. If pin
CESEL is connected to DGND or floating, ES51916 will have a 610.0V overflow level
in DC and AC 1100.0V ranges. If pin CESEL is connected to V-, ES51916 will have a
1010.0V overflow level in DC and AC 1100.0V ranges. The meter will Show OL when
the measuring signal reaches the overflow level. The configuration of CESEL is listed
below.
CESEL
V-
DGND or floating
DCV
1010.0V
610.0V
ACV
1010.0V
610.0V
v1.2
6
11/09/06
CYRUSTEK [ Cyrustek corporation ]
