NJU9214 NJR Corporation, NJU9214 Datasheet - Page 14

• Manufacturer Part Number: NJU9214
• Description: 4·3/4 Digit Single Chip Digital Multimeter Lsi
• Manufacturer: NJR Corporation

NJU9214
2kHz buzzer sounds at following cases ;
If the supply voltage is less than 4.0 ± 0.4V, [ BATT ] mark is blinked.
buzzer sound, and all display is disappeared. ( the data in the memory is kept )
seconds. To void this function, the power should be turned on with pressing the switch connecting to the PON
terminal.
not return to usual operation correctly.
In measurement operation by the ADP function, the following display setting by RC1 to RC3 terminals is
available.
(4-5) Buzzer output
(4-6) Low-Battery Detector : BLD
(4-7) Auto power-off
(4-8) Setting the mode at Power-on, Function and Range changing
(4-9) Display of ADP setting
[ 1 ] Key operation ( except function changing and range changing )
[ 2 ] Auto-power off operation
[ 3 ] Continuity test (
[ 4 ] Releasing from relative mode and MIN / MAX display
[ 5 ] Changed between manual-range and auto-range by RCO terminal
[ 6 ] Auto-range: Overflowing at 4,000V range
[ 7 ] Power-on operating and Releasing from the Auto-power off mode
[ 8 ] Twice sounds from 24 seconds before and every 8 seconds
If the key-operation doesn't work over than 30 minutes, the power is turned off automatically after 1 second
When the PON terminal is pressed or power switch is turned off, this mode is released.
In case of release by PON terminal, the previous value of the auto power-off operation is displayed for 2
The NJU9214 gets some voltage surges during the power off mode by the auto power off operation, it might
Manual-range: Overflowing at every range except 400mV range
Range ( Auto range )
Relative Measure
MIN / MAX Hold
Auto power-off
Data Memory
FUNCTIONS
Range Hold
Data Hold
) ; less than 40
All “ 0 “ display
Default range
Power-on
Auto off
Reset
Function changing
Default range
Auto off
Reset
Hold
Range changing
Auto off
Reset
Hold
Hold
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