ES51960
3 3/4 Auto DMM
Auto-Power-off function
Once power on the ES51960, the auto-power-off function will be enabled
and if the functions are not changed in 30 minutes, the auto-power-off condition
will happen and SLEEP pin output will change from +3V to –3V. When power-
off happens, the final data is saved. If continue to press anyone of the pushed function
(except HOLD pin)then power on the ES51960, the auto-power -off function will be
disabled , and LCD segment "APO" will be turned off.
BKLIT
When this pin BKLIT is pushed, the BKOUT pin output will change from
V- to V+ for 60 sec then returned to V- again, but if this pin is pushed again
within 60 sec, this function will be canceled.
SLEEP
When auto-power-off happens, this pin output will change from V+ to V-, once
re-power on happen, this pin output will change from V- to V+.
(3) Buzzer
The BUZZER turns on in the following condition :
•1 beep : Measurement function changed ,power and re-power on ,
RANGE, HOLD, MAX/MIN, REL, SET, BKLIT or KEY are pushed.
• 3.3 beeps : Input reading overrange. (except diode, ohm, continuity,
frequency function used)
• 2.0 KHZ continue: Continue check (Bargraph number<=3).
• 2.0 KHZ continue 1.5 sec : Auto-power-off.
BUZZER output waveform :
2.0 KHz ( continued )
0.5 mS
beeps (3.33 beeps/sec)
0.15 sec
0.3 sec
13
92年8月4日
CYRUSTEK [ Cyrustek corporation ]
