NJU9214FG1 Просмотр технического описания (PDF) - Japan Radio Corporation
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NJU9214FG1 Datasheet PDF : 28 Pages
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NJU9214
(4-5) Buzzer output
2kHz buzzer sounds at following cases ;
[ 1 ] Key operation ( except function changing and range changing )
[ 2 ] Auto-power off operation
[ 3 ] Continuity test ( ) ; less than 40Ω
[ 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
Manual-range: Overflowing at every range except 400mV range
[ 7 ] Power-on operating and Releasing from the Auto-power off mode
[ 8 ] Twice sounds from 24 seconds before and every 8 seconds
(4-6) Low-Battery Detector : BLD
If the supply voltage is less than 4.0 ± 0.4V, [ BATT ] mark is blinked.
(4-7) Auto power-off
If the key-operation doesn't work over than 30 minutes, the power is turned off automatically after 1 second
buzzer sound, and all display is disappeared. ( the data in the memory is kept )
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
seconds. To void this function, the power should be turned on with pressing the switch connecting to the PON
terminal.
The NJU9214 gets some voltage surges during the power off mode by the auto power off operation, it might
not return to usual operation correctly.
(4-8) Setting the mode at Power-on, Function and Range changing
FUNCTIONS
Range ( Auto range )
Range Hold
Data Hold
Relative Measure
MIN / MAX Hold
Data Memory
Auto power-off
Power-on
Default range
Reset
All “ 0 “ display
Auto off
Function changing
Default range
Reset
Hold
Auto off
Range changing
–
Hold
Reset
Hold
Auto off
(4-9) Display of ADP setting
In measurement operation by the ADP function, the following display setting by RC1 to RC3 terminals is
available.
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