Instruction Manual

4-43

IM WX102-01E

Index

DARWIN Hardware Configurator

4.20 Setting Alarm Interval, Hysteresis, and Alarm

Display Hold

Open the Alarm Setup setting screen (see below) for Alarm Interval, Hysteresis, and

Alarm Display Hold as follows:

Click the SETUP tab and select Alarm from the SETUP (Basic) Setting contents box, or

select from the menubar Settings > SETUP (Basic) Settings > Alarm Setup.

Select a SETUP topic SETUP tab

Alarm display hold

(only DC100/DR)

RH alarm interval

RL alarm interval

Hysteresis setting

Alarm Interval

For high/low limit on rate-of-change alarms, variation is measured over a preset interval.

If the variation exceeds the preset value, an alarm occurs. This interval can be set and

applied to all channels.

Hysteresis

Set the width between the value of alarm occurrence and its release. This setting

prevents frequent alarm occurrences/releases in an unstable environment. Hysteresis

values can be set in the 0–1% percentage range of the span. The hysteresis setting is

used for high and low limit alarms.

Set the span percentage using the Alarm Hysteresis pull-down box.

Alarm Display Hold (DC100, and DR only)

For DC100, and DR select whether to hold the alarm indicator after the alarm is released,

or not.