3 3/4 MANU DMM
Operation Mode
Switch Description
Measurement mode are depend on the logic levels of FC1, FC2, FC3.
ES51961
FC1 FC2 FC3 Mode
Overflow Beep PEAK ZOOM BDIS
1
1
1 Volt1 (*1)
O
O
O
O
1
1
0 Volt2
O
X
O
O
1
0
1 Volt3
X
O
O
O
1
0
0 Volt4
X
(*2)
O
O
0
1
1 Continuity
X
X
X
X
0
1
0 Frequency (*3)
X
X
X
X
0
0
0 Logic (*4)
X
X
(*5)
X
0
0
1 Diode
X
X
X
X
*1: The LCD will show "OL" if reading is over 2000 counts if turns D10
function on.
*2: If PEAK connects to V-, the sign annunciator "-" will not display.
*3: The range can be changed by RANGE pin.
*4: The logic high level reference voltage level can be changed by RANGE pin.
*5: This pin is used to change the voltage level of buzzer on.
Analog Section
The ES51961 design incorporates “ZI”, “AZ”, “INT”, “DINT” four phases
which is a dual slope A/D converter. The ADC system including high speed and
high resolution two parts. Its timing setting is as follow:
Voltage:
Mode High Resolution
ZI
100m sec
AZ
150m sec
INT
100m sec
DINT
400m sec
Voltage+M2:
Mode High Resolution
ZI
100m sec
AZ
150m sec
INT
100m sec
DINT
200m sec
High Speed
20m sec
5m sec
10m sec
40m sec
High Speed
20m sec
5m sec
10m sec
20m sec
7
2006/1/24
CYRUSTEK [ Cyrustek corporation ]
