[DB600] General instruction manual
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AL: Event value
db: Event dead-band
Even output range
Event activation range
Heater upper limit alarm (heater overcurrent alarm)
Event output when heater overcurrent occurs.
A current transformer (CT) is used to detect heater overcurrent.
Activation condition
AL < CT
Keep condition
AL - db < CT
≤ AL
Reset condition
CT
≤ AL - db
Heater lower limit alarm (heater disconnection alarm)
Event output when heater disconnection occurs.
A current transformer (CT) is used to detect heater disconnection.
Activation condition
AL > CT
Keep condition
AL
≤ CT < AL + db
Reset condition
CT
≥ AL + db
Timer alarm
Event output after a specified period of time.
Set the timer time and DI (external signal input).
Activation condition
Produce an event output when a timer set time has
passed after DI ON (conduction state).
Reset condition
DI is turned OFF (non-conduction state).
* "Timer 1" and "Timer 2" should be assigned to DI
with "External input (MODEd)" (see the section
FAIL alarm
Event output when an error occurs in the
instrument.
Activation condition
A/D conversion error
Calibration data error
Over range, under range
CT
current
Event dead-band (db)
CT
current
Event dead-band (db)
Event-ON
Timer set time
Timer activated
