Omega RD-MV100 Series, User Manual

Page: 132 / 299

6-11
Acknowledging and Setting Alarms
6
Setting the interval for the rate-of-change alarm
6. Rate of change - Increase, Rate of change - Decrease
The time interval is specified using a number of sampling times.
Select the limit from 1 to 15 using the soft key.
Setting the alarm hysteresis
7. Hysteresis
Select [On] or [Off] using the soft key.
On : The hysteresis is 0.5% of the display span or scale.
Off : no hysteresis
Confirming operation
To confirm the new settings, press the DISP/ENTER key.
To cancel the new settings, press the ESC key. A window appears for you to confirm the
cancellation. Select [Yes] using the arrow keys and press the DISP/ENTER key.
Explanation
Alarm output relay (option)
A contact signal is generated when an alarm occurs. The number of output relays is 2 to
6 points (depends on the specification).
Reflash
When multiple alarms are set to one alarm output relay, this function notifies the
succeeding alarms after the first alarm that causes the relay operation. When a
succeeding alarm occurs, the output relay temporarily turns OFF. The reflash alarm
function is set only to output relays I01, I02, and I03. The initial setting is [Off] (Not use
“Reflash”).
Alarm status
Alarm relay status
(reflash = on)
Channel 1
Channel 2
Channel 3
Output relay
(option)
Approx. 500 ms Approx. 500 ms
Alarm relay status
(reflash = off) Output relay
(option)
(assuming I01 is assigned)
(assuming I01 is assigned)
(assuming I01 is assigned)
(I01 output)
(I01 output)
Note
If the reflash alarm is specified, relays I01 to I03 are used as reflash relays regardless of the
number of alarm output relays. Therefore, relays I01 to I03 operate as OR logic (see “AND/
OR of alarm output relays”) and non-hold (see “Hold/Non-hold operation of the alarm output
relay”) regardless of the settings made in “AND/OR of alarm output relays” and “Hold/Non-
hold operation of the alarm output relay.”
6.4 Setting the Auxiliary Alarm Function (Basic Setting Mode)