ES218 Datasheet, PDF (13/26 Pages) Cyrustek corporation – 2000 Counts Manual DMM

ES218
2000 Counts Manual DMM
1.11. ADP
ES218 provides 4 manual range ADP measurement modes for user define. The ADP pin is
auxiliary input terminal for ADC of ES218. The full scale for ADP mode is 200.0mV. If FC5=0, the
minus sign will not be shown on LCD segment.
Mode
FC1~4
SLACDC / FC6
ADP0
1,0,0,1
1,1
ADP1
0,0,1,1
1,1
ADP2
0,0,1,0
1,1
ADP3
0,1,0,1
1,1
Note: If FC5 is set to V-, the minus sign will be disabled.
Full Scale
2000
200.0
20.00
2.000
Input Terminal
ADP V.S. SGND
ADP V.S. SGND
ADP V.S. SGND
ADP V.S. SGND
1.12. Auto Power Off (APO)
ES218 has a default auto power off function. If the meter is idle for more than the given idle time
duration, the chip automatically turns the power off. The idle time to trigger the auto power off
function is set to 30 minutes. When APO is occurred, the state of the meter is reserved. The APO
symbol on the LCD panel indicates whether the auto power off is enabled or not. In some cases, user
might want to disable Auto power off. There are two ways to disable this feature as following:
1. Power on the meter when any of the push functions, except for HOLD, is pressed down.
Note: Powering on the meter while pressing HOLD and lasts 2 seconds turns on all LCD segments until HOLD
is pressed again.
1.13. Sleep
The meter enters sleep mode after auto power off. The SLEEP pin (pin43) asserts low (V-) in the
sleep mode, and asserts high (V+, not 0V) after re-power on.
1.14. Re-Power On
After auto power-off, pushing any of the push function or changing the rotary mode can turn on
the meter again. If the meter is re-powered on by changing the rotary mode, the saved state is cleared.
If the meter is re-powered on by push functions, the chip restores the saved state and enters HOLD
mode. The LCD displays the saved value.
V 1.5
13
2015/12/11