Yokogawa Button Operated DX2000 - Manual (Page 111)

Measurement Channels and
Alarms
3-15
IM 04L42B01-01E
1
2
3
4
5
6
7
8
9
10
11
12
13
App
Index
3.8 Releasing the Alarm Output (Alarm ACK
Operation)
This operation is valid when the DX is set as follows:
DX with release number 3 or later
• When Annunciator mode is set to On in the basic setting mode.
• When Annunciator mode is set to Off, the operation is the same as described for DX
with release number 2 below.
DX with release number 2
• When Indicator is set to Hold in the basic setting mode.
• When Relay Hold is set to Hold and Relay action on ACK is set to Normal in the
basic setting mode.
• When Relay action on ACK is set to Reset in the basic setting mode.
DX before release number 2
• When Indicator is set to Hold in the basic setting mode.
• When Relay Hold is set to Hold in the basic setting mode.
For the procedure to set the relay action, see section 3.5.
On a DX with advanced security (/AS1 option; release numbers 4 and later), you can
perform separate alarm ACK operations on each alarm.
For information about individual alarm ACK operations, see section 4.4.
Procedure
This operation is carried out after an alarm occurs.
1. In the operation mode, press FUNC.
The FUNC key menu appears.
2. Press the Alarm ACK soft key.
The alarm output is released.
Explanation
• Alarm Acknowledge (ACK) Operation
When an alarm acknowledge operation is carried out, the indications and outputs
(relays and switches) of all activated alarms are cleared.
In annunciator mode (release number 3 or later), the alarm indications and outputs
follow the annunciator sequence.