ES51932
22,000 Counts Auto DMM
5.4 Operating Timing
ES51932 incorporates a dual slope ADC with four phases: ZI, AZ, INT and DINT.
The ADC consists of a high-resolution part for digital display and a high speed part
for the bar-graph display. The time of each phase is shown below:
*Voltage /Current /Ohm/Cont./Diode/ADP measurement:
Phase
ZI
AZ
INT
DINT
High resolution High speed
100ms
74ms
100ms
226ms
10ms
7.4ms
10ms
22.6ms
*Peak mode voltage measurement:
Phase
ZI
AZ
INT
DINT
High resolution High speed
100ms
74ms
100ms
326ms
10ms
7.4ms
10ms
32.6ms
*Capacitance measurement:
Range
Maximum measurement period
22.000nF
220.00nF
2.2000uF
22.000uF
220.00uF
2.2000mF
22.000mF
220.00mF
0.5sec
0.5sec
0.5sec
0.5sec
0.5sec
1sec
5sec
25sec
*Frequency measurement
The measurement cycle = 1.05 sec
P.S. In the frequency measurement with auto mode, if the range is changed, the internal clock rate will
increase five times and the new measurement cycle becomes 0.21 sec until the range is stable.
Ver. 1.2
30
10/05/27
CYRUSTEK [ Cyrustek corporation ]
