Larm Function - YOKOGAWA DAQSTATION DX100 Technical Information

＜Toc＞ ＜Ind＞
3.2 Alarm Function
Number of alarm levels
Alarm Types
H High limit alarm
L Low limit alarm
R Rate-of-change limit on increase
r Rate-of-change limit on decrease
h Difference upper limit alarm
l Difference lower limit alarm
T Delayed high limit alarm
t Delayed low limit alarm
Hysteresis
Alarm indication
Status indicator section
Trend display
Numeric display
Bar graph display
Indication behavior
Indication hold
Indication non-hold
Indication hold
Indication non-hold
Output contacts
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: Up to four alarm levels for each channel.
: Generated when the measured value is higher than, or equal
to, the alarm setting.
: Generated when the measured value is lower than, or equal
to, the alarm setting.
: Generated when the measured value variation in the
ascending direction during a selected interval is greater than,
or equal to, the alarm setting.
: Generated when the measured value variation in the
descending direction during a selected interval is greater than,
or equal to, the alarm setting.
: Generated when the difference between two channels is equal
to or greater than the alarm setting.
: Generated when the difference between two channels is equal
to or less than the alarm setting.
: Generated when the measured value is higher than, or equal
to the alarm setting and spend specified time.
: Generated when the measured value is lower than, or equal
to the alarm setting and spend specified time.
: On (0.5% of span, effective for high and low limit alarms) / off switchable,
common for all channels.
: Displayed in the status display area (upper section of the screen)
: Displayed in the numeric display section.
: Displays the measured values of the channel on which the alarm is being
generated in red.
: Displays the alarm condition of the channel on which the alarm is being
generated. Also displays the alarm point marker. Displays the measured values
In red.
: When alarm occurs, red box keeps blinking until Alarm Ack is executed.
If Alarm Ack is executed during alarm in effect, red box changes from red blink
to red light on.
When alarm is released before Alarm Ack is executed, green box blinks.
: Red light turns on during alarm in effect.
Display does not change by Alarm Ack.
Alarm
Alarm ACK
Indication on
off
status section
Alarm
Indication on
off
status section
: When the alarm output relay option is installed, the alarm can be output to the
relay.
Blink in Blink in off Blink in
red green red
Blink in off Turn on red
red
33
Turn on off
red
off
TI 04L01A01-02E