Yokogawa DR240 Manual do Utilizador Página 169

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10-8
IM DR232-01E
10.3 Select Alarm Interval/Hysteresis/Hold/A/D Converter Integration Time/Filter
Selection of Interval for High Limit of Rate-Of-Change Alarm (ALARM RH TIME)
Set the number of measurement repeats in Interval = measurement interval x measurement
repeats.
Select 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15.
The default setting is 8.
Selection of Interval for Low Limit of Rate-Of-Change Alarm (ALARM RL TIME)
The same selection method as the above.
Selection of Alarm Hysteresis (ALARM HYS)
Applied to high/low limit alarm.
Select 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 or 1.0%.
The default setting is 0.5%.
Selection of Alarm Display Hold (ALARM HOLD)
Select whether the alarm display is held or not when the alarm is reset.
OFF: hold
ON: not hold
The default setting is OFF.
Selection of A/D Converter Integration Time (A/D INTG)
Select each A/D converter integration time for each unit. Select it from the following:
AUTO: the frequency of 50/60 Hz is automatically switched corresponding to the power
frequency of this instrument.
However, AUTO does not function on the the subunit of the DC power supply model.
Selecting AUTO will set the A/D integration time to 20 ms (50 Hz).
50 Hz: the integration time is set to 20 ms (50 Hz).
60 Hz: the integration time is set to 16.7 ms (60 Hz).
100 ms: the integration time is set to 100 ms (10 Hz)
The default setting is AUTO.
Selection of Filter (FILTER)
Select whether the input filter is operated or not. Select it from the following:
OFF: Not operated
ON: Operated
The default setting is OFF.
Note
In order to make the set or selected contents effective, the contents must be registered. For details, see
page 10-23.
To return from the SET UP menu to the operation display mode, select END in the main menu. For
details, see page 10-23.
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