YOKOGAWA SMARTDAC+ GM, Техническая информация

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TI04L55B01-01EN
Type Explanation
Difference high
limit (h)
An alarm is activated when the
difference in the measured values of
two channels is greater than or equal
to the specified value. This alarm
can be specified on measurement
channels set to difference
computation.
Alarm output ON
Alarm value
Hysteresis
Difference in the measured values of two channels
Difference low limit
(I)
An alarm is activated when the
difference in the measured values of
two channels is less than or equal to
the specified value. This alarm can be
specified on measurement channels
set to difference computation.
Alarm output ON
Alarm value
Hysteresis
Difference in the measured values of two channels
The character inside the parentheses is the symbol denoting each alarm.
Alarm of a channel set to difference computation
It is set in the position shown in the figure below.
Input value
Measured value on the reference channel
H, L, T, t, R, r h, l
Measured value
—

Hysteresis
You can furnish an offset between the value used to activate and release alarms.
This is fixed at 0 for the DI range.
Example:
H: If you set the alarm value of a high limit alarm to 1.0000 V and the hysteresis to 0.0005 V, an
alarm is activated when the measured value is greater than or equal to 1.0000 V and is released
when the measured value is less than 0.9995 V.

Alarm Display (Detection)
You can select whether to display an alarm (indicate the occurrence) when an alarm occurs.
If the alarm display is disabled, when an alarm occurs, the GM outputs signals to alarm output
DO channels or internal switches but does not display the alarm. In addition, alarms are also not
recorded in the alarm summary.

Changing the Alarm Values from the Web Page
You can change the alarm values from the Monitor Page (digital, bar graph, overview) on the
Web browser.
This is useful when you need to change the alarm values depending on measurement conditions.
To use this function, in Display settings, under Screen display settings, Changing each value
from monitoring must be set to On.